CN109995462B

Movatterモバイル変換

Info

Publication number: CN109995462B
Application number: CN201711483895.9A
Authority: CN
Inventors: 郑娟; 官磊; 马莎
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2021-10-22
Anticipated expiration: 2037-12-29
Also published as: CN109995462A; WO2019128949A1

Abstract

The embodiment of the application provides a transmission method and a device of a data transmission format, which can be applied to communication systems, such as V2X, LTE-V, V2V, Internet of vehicles, MTC, IoT, LTE-M, M2M, Internet of things and the like, wherein the method comprises the following steps: the terminal equipment determines a first system parameter or a second system parameter used when the terminal equipment and the access network equipment carry out data transmission; the terminal equipment receives first indication information sent by the access network equipment, wherein the first indication information is used for indicating the number of time units for sending and/or receiving data by the access network equipment; and the terminal equipment determines the number of the time units according to the first indication information. The method provided by the embodiment of the application can provide an effective data transmission format indicating method for different system parameters to carry out data transmission.

Description

Data transmission format transmission method and device

Technical Field

The embodiment of the application relates to the field of communication, and in particular relates to a method and a device for transmitting a data transmission format.

Background

In a wireless communication network, each device needs to utilize frequency resources, also referred to as frequency spectrum or frequency bands, for information transmission. The frequency band can be divided into authorized frequency band and unlicensed frequency band, and the unlicensed frequency band is also called unlicensed frequency band. Licensed bands are frequency resources specific to some operators. The unlicensed frequency band is a frequency resource that is commonly used in a wireless communication network and can be used for free, and different devices can share and use the frequency resource on the unlicensed frequency band. With the development of communication technology, the amount of information transmitted in a wireless communication network is increasing day by day, and the data throughput in the wireless communication network can be improved by using the unlicensed frequency band to transmit information, so that the requirements of users can be better met.

However, when a device preempts the unlicensed band for information transmission, it is necessary to dynamically determine the data transmission format because information transmission on the unlicensed band is opportunistic. On the other hand, information transmission on the unlicensed frequency band may adopt a plurality of different system parameters to adapt to different service types. Therefore, how to design an effective data transmission format indication method aiming at different system parameters is a problem to be solved by the application.

Disclosure of Invention

The embodiment of the application provides a transmission method and device of a data transmission format.

In a first aspect, an embodiment of the present application provides a method for transmitting a data transmission format, including: the terminal equipment determines a first system parameter or a second system parameter used when the terminal equipment and the access network equipment carry out data transmission; the terminal equipment receives first indication information sent by the access network equipment, wherein the first indication information is used for indicating the number of time units for sending and/or receiving data by the access network equipment; the terminal equipment determines the number of the time units according to the first indication information; when the terminal device determines that the terminal device and the access network device use the first system parameter for data transmission, the number of the time units is an element included in a first set; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the number of the time units is an element included in the second set; wherein the first set corresponds to the first system parameters and the second set corresponds to the second system parameters; the first set comprises at least one value M, wherein M is larger than N, N is the maximum value in the second set, and the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter. By the method provided by the embodiment of the application, no matter what system parameters are used for data transmission between the access network equipment and the terminal equipment, the access network equipment can use the first indication information to indicate the number of time units for sending and/or receiving data, so that the indication method of the data transmission format (such as SFI) is simplified.

In one possible implementation, the first set includes a set { a }₁,a₂，…，a_wA second set comprising a set { b }₁,b₂,…,b_w}，

Is an integer multiple of K, wherein a_i、b_iW is a positive integer, i is a natural number greater than 0 and less than or equal to w; or the ratio of at least one value in the first set to at least one value in the second set is an integer multiple of K; and K is the ratio of the subcarrier interval corresponding to the first system parameter to the subcarrier interval corresponding to the second system parameter. By the method provided by the embodiment of the application, no matter what system parameters are used for data transmission between the access network equipment and the terminal equipment, the data transmission durations corresponding to the multiple time units indicated by the first indication information can reach similar results under the condition of different system parameters, and the method is particularly suitable for indicating the data transmission format on the unlicensed frequency band resource.

In a possible implementation manner, when the terminal device determines that the terminal device and the access network device use the first system parameter for data transmission, the terminal device determines the number of time units according to the first indication information, the first system parameter, and the second system parameter; or, the terminal device determines the transmission duration corresponding to the number of the time units according to the first indication information and the second system parameter.

In a possible implementation manner, the first indication information is further used for indicating a starting position of the number of the time units; when the terminal device determines that the terminal device and the access network device use the first system parameter for data transmission, the terminal device determines the starting position of the time unit number according to the first indication information and the first system parameter, or according to the first indication information and the second system parameter; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the terminal device determines the starting position of the time unit number according to the first indication information and the second system parameter.

In a possible implementation manner, the terminal device receives second indication information sent by the access network device, where the second indication information is used to indicate a starting position of the number of time units; when the terminal device determines that the terminal device and the access network device use the first system parameter when performing data transmission, the terminal device determines the starting position of the time unit according to the second indication information and the first system parameter; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the terminal device determines the starting position of the time unit according to the second indication information and the second system parameter.

Optionally, the first indication information and the second indication information are carried in the same downlink control channel.

Optionally, the first indication information is carried in a downlink common control channel.

In one possible implementation, the first system parameter includes a subcarrier spacing, SCS, and/or a time unit duration; the second system parameter comprises a subcarrier spacing, SCS, and/or a time unit duration.

In a possible implementation manner, the first indication information is used to indicate the number of time units for the access network device to send and/or receive data, and includes: the first indication information is used for indicating the number of time units for sending and/or receiving data by the access network equipment within a preset time range, wherein the duration corresponding to the preset time range is not longer than the single data transmission duration limited by regulation and constraint on the license-free frequency band resource. Therefore, the terminal device can not execute downlink detection in the non-scheduled uplink data transmission time period, thereby achieving the power saving (power saving) effect.

In a second aspect, an embodiment of the present application provides a method for transmitting a data transmission format, including: the access network equipment determines the number of time units for sending and/or receiving data; the access network equipment sends first indication information to terminal equipment, wherein the first indication information is used for indicating the number of time units for sending and/or receiving data by the access network equipment; when the terminal device and the access network device use the first system parameter for data transmission, the number of the time units is an element included in the first set; or, when the terminal device and the access network device use the second system parameter during data transmission, the number of the time units is an element included in the second set; wherein the first set corresponds to the first system parameters and the second set corresponds to the second system parameters; the first set comprises at least one value M, wherein M is larger than N, N is the maximum value in the second set, and the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter. By adopting the method provided by the embodiment of the application, the indication of the data transmission format can also realize that the data transmission duration corresponding to the indicated time unit is comparable no matter which system parameter is adopted, so that the design of the data transmission format indication method on the license-free frequency band resource is simplified.

Is an integer multiple of K, wherein a_i、b_iW is a positive integer, i is a natural number greater than 0 and less than or equal to w; or the ratio of at least one value in the first set to at least one value in the second set is an integer multiple of K; and K is the ratio of the subcarrier interval corresponding to the first system parameter to the subcarrier interval corresponding to the second system parameter.

Optionally, the first indication information is further used to indicate a starting position of the number of time units.

In a possible implementation manner, the access network device sends second indication information to the terminal device, where the second indication information is used to indicate a starting position of the number of time units.

In a possible implementation manner, the first indication information is carried in a downlink common control channel.

In a possible implementation manner, the first indication information is used to indicate the number of time units for the access network device to send and/or receive data, and includes: the first indication information is used for indicating the number of time units for sending and/or receiving data by the access network equipment within a preset time range, wherein the duration corresponding to the preset time range is not longer than the single data transmission duration limited by regulation and constraint on the license-free frequency band resource.

In a third aspect, an embodiment of the present application provides a terminal device, configured to execute the method of the first aspect. In particular, the terminal device includes means for performing the first aspect or the method in any implementation manner of the first aspect.

In a fourth aspect, an embodiment of the present application provides an access network device, configured to execute the method of the second aspect. In particular, the access network device comprises means for performing the second aspect or the method in any implementation manner of the second aspect.

In a fifth aspect, an embodiment of the present application provides a method for transmitting a data transmission format, including: the terminal equipment determines a first system parameter or a second system parameter used when the terminal equipment and the access network equipment carry out data transmission; the terminal equipment receives indication information sent by access network equipment, wherein the indication information is used for indicating the initial position of the time unit number of data sending and/or receiving of the access network equipment; the terminal equipment determines the initial positions of the time unit number according to the indication information; when the terminal device determines that the terminal device and the access network device use the first system parameter for data transmission, the terminal device determines the starting position of the time unit number according to the indication information and the first system parameter, or according to the indication information and the second system parameter; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the terminal device determines the starting position of the time unit number according to the indication information and the second system parameter.

In a possible implementation manner, when the terminal device determines that the terminal device and the access network device use the first system parameter for data transmission, the number of the time units is an element included in a first set; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the number of the time units is an element included in the second set; the first set corresponds to the first system parameter, the second set corresponds to the second system parameter, the first set includes at least one value M, the value M is greater than N, the value N is the maximum value in the second set, and the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter.

Is an integer multiple of K, wherein a_i、b_iW is a positive integer, i is a natural number greater than 0 and less than or equal to w; or the ratio of at least one value in the first set to at least one value in the second set is an integer multiple of K; wherein K isA ratio between a subcarrier spacing corresponding to a first system parameter and a subcarrier spacing corresponding to a second system parameter.

In one possible implementation, the first system parameter includes a subcarrier spacing, SCS, and/or a time slot duration; the second system parameter comprises a subcarrier spacing, SCS, and/or a time slot duration.

In a possible implementation manner, the indication information is used to indicate a starting position of the number of time units for the access network device to send and/or receive data within a preset time range, where a duration corresponding to the preset time range is not greater than a single data transmission duration limited by regulatory constraints on the unlicensed frequency band resources.

Optionally, the indication information is further used to indicate the number of time units for sending and/or receiving data by the access network device.

In a sixth aspect, an embodiment of the present application provides a method for transmitting a data transmission format, including: the access network equipment determines the initial position of the number of time units for sending and/or receiving data; the access network equipment sends indication information to the terminal equipment, wherein the indication information is used for indicating the starting position of the time unit number of the data sent and/or received by the access network equipment.

In a possible implementation manner, when the terminal device and the access network device use the first system parameter for data transmission, the number of the time units is an element included in the first set; or, when the terminal device and the access network device use the second system parameter during data transmission, the number of the time units is an element included in the second set; the first set corresponds to the first system parameter, the second set corresponds to the second system parameter, the first set includes at least one value M, the value M is greater than N, the value N is the maximum value in the second set, and the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter.

Optionally, the indication information is carried in a downlink common control channel.

In a seventh aspect, an embodiment of the present application provides a terminal device, configured to execute the method of the fifth aspect. In particular, the terminal device comprises means for performing the method of the fifth aspect or any implementation manner of the fifth aspect.

In an eighth aspect, an embodiment of the present application provides an access network device, configured to execute the method of the sixth aspect. In particular, the access network device comprises means for performing the method of any one of the implementations of the sixth aspect or the sixth aspect.

In a ninth aspect, the present application provides a computer storage medium having stored thereon a computer program (instructions) which, when run on a computer, causes the computer to perform the method of the first, second, fifth, or sixth aspect.

In a tenth aspect, the present application provides a chip system, which includes a processor for enabling an access network device and a terminal device to implement the functions referred to in the above aspects, for example, to generate or process data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the access network device and the terminal device. The chip system may be constituted by a chip, or may include a chip and other discrete devices.

In an eleventh aspect, the present application provides a communications apparatus comprising a processor and a memory; the memory is used for storing computer execution instructions; the processor is configured to execute computer-executable instructions stored by the memory to cause the communication device to perform the method of the first, second, fifth, or sixth aspect.

In a twelfth aspect, the present application provides a communication system, where the communication system includes the terminal device in the third aspect and the access network device in the fourth aspect.

In a thirteenth aspect, the present application provides a communication system comprising the terminal device of the seventh aspect and the access network device of the eighth aspect.

In summary, according to the embodiments of the present application, when data transmission between the access network device and the terminal device uses different system parameters, the transmission durations corresponding to a plurality of time units that are comparable or the same may be indicated, thereby achieving effective data transmission format indication and simplifying the design method of data transmission format indication.

Drawings

Fig. 1 is a schematic architecture diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an access network device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

fig. 5 is a schematic diagram of different SCS and corresponding time slot duration provided in the embodiment of the present application;

fig. 6 is a schematic diagram of a frame structure according to an embodiment of the present application;

fig. 7 is a schematic diagram of another frame structure provided in the embodiment of the present application;

fig. 8 is a schematic diagram illustrating an indication of a transmission duration according to an embodiment of the present application;

fig. 9 is a schematic diagram of another example of indicating a transmission duration according to the present disclosure;

fig. 10 is a schematic diagram of another example of indicating a transmission duration according to the present disclosure;

fig. 11 is a schematic flow chart of another data transmission method according to an embodiment of the present application;

fig. 12a and 12b are schematic diagrams illustrating that the first indication information indicates the number of time units for receiving data by the access network device according to the embodiment of the present application;

fig. 13 is a schematic diagram illustrating another example that indicates, by using first indication information, the number of time units for receiving data by an access network device according to an embodiment of the present application;

fig. 14 is a schematic diagram illustrating another example that the first indication information indicates the number of time units for receiving data by the access network device according to the embodiment of the present application;

fig. 15 is a schematic diagram illustrating different relationships between astart position #1 and a start position #2 according to an embodiment of the present application;

fig. 16 is a schematic diagram of another different relationship between the startingposition #1 and the starting position #2 according to an embodiment of the present application;

fig. 17 is a schematic diagram of another different relationship between the startingposition #1 and the starting position #2 according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It should be noted that, in the case of no conflict, the technical solutions or features in the embodiments of the present application may be combined with each other.

The term "a" in the embodiments of the present application means a single individual, and does not mean only one individual, and cannot be applied to other individuals. For example, in the embodiment of the present application, "one terminal device" refers to a certain terminal device, and does not mean that the terminal device is applicable to only one specific terminal device. In this application, the term "system" may be used interchangeably with "network".

Reference in the specification to "one embodiment" (or "one implementation") or "an embodiment" (or "an implementation") means that a particular feature, structure, characteristic, or the like described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.

Further, the use of the terms "and/or" and "at least one of" in the embodiments of the present application in the context of "a and/or B" and "at least one of a and B" includes any of three schemes, i.e., a scheme including a but not including B, a scheme including B but not including a, and a scheme including both options a and B. As another example, in the case of "A, B, and/or C" and "A, B, and/or at least one of C," such phrases include any of six scenarios, i.e., a scenario that includes a but does not include B and C, a scenario that includes B but does not include a and C, a scenario that includes C but does not include a and B, a scenario that includes a and B but does not include C, a scenario that includes B and C but does not include a, a scenario that includes a and C but does not include B, and a scenario that includes all three options A, B and C. As will be readily appreciated by those of ordinary skill in this and related arts, the embodiments of the present application are comprehended in the manner described above with respect to other similar descriptions.

Fig. 1 shows a communication diagram of a wireless device and a wireless communication system. The wireless communication system may be a system applying various Radio Access Technologies (RATs), such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or single carrier frequency division multiple access (SC-FDMA), among others. For example, the wireless communication system may be a Long Term Evolution (LTE) system, a CDMA system, a Wideband Code Division Multiple Access (WCDMA) system, a global system for mobile communications (GSM) system, a Wireless Local Area Network (WLAN) system, a New Radio (NR) system, various evolved or converged systems, and a system facing future communication technologies. The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

For simplicity, communication between one network device 102 (e.g., an access network device) and two wireless devices 104 (e.g., terminal devices) is shown in fig. 1. In general, a wireless communication system may include any number of network devices as well as terminal devices. The wireless communication system may also include one or more core network devices or devices for carrying virtualized network functions, etc. Theaccess network device 102 may provide services to wireless devices over one or more carriers. Access network equipment and terminal equipment are also referred to herein collectively as a wireless device.

In this application, theaccess network device 102 is a device deployed in a radio access network to provide a wireless communication function for a terminal device. The access network device may include various forms of macro Base Stations (BSs), micro base stations (also referred to as small stations), relay stations, or access points, etc. In systems using different radio access technologies, names of devices having radio access functions may be different, for example, in an LTE system, the devices are called evolved node bs (enbs) or enodebs, and in a third generation (3G) system, the devices are called node bs (node bs). For convenience of description, in this application, it is referred to as an access network device, sometimes referred to as a base station.

The wireless devices referred to in embodiments of the present application may include various handheld devices, vehicle mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. The wireless device may be referred to as a terminal device, or a Mobile Station (MS), a terminal (terminal), a User Equipment (UE), and so on. The wireless device may be a wireless device including a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a Personal Digital Assistant (PDA) computer, a tablet computer, a modem (modem) or modem processor (modem processor), a handheld device (hand), a laptop (laptop computer), a netbook, a cordless phone (cordless phone), or a Wireless Local Loop (WLL) station, a bluetooth device, a Machine Type Communication (MTC) terminal, or the like. For convenience of description, in this application, it is simply referred to as terminal equipment or UE.

The wireless devices may support one or more wireless technologies for wireless communication, such as 5G, LTE, WCDMA, CDMA,1X, Time Division-Synchronous Code Division Multiple Access (TS-SCDMA), GSM,802.11, and so on. The wireless device may also support carrier aggregation techniques.

Multiple wireless devices may perform the same or different services. For example, Mobile Broadband service, Enhanced Mobile Broadband (eMBB) service, very-Reliable and Low-Latency Communication (URLLC) service, etc. are provided to a terminal.

Further, a schematic diagram of a possible structure of theaccess network device 102 may be as shown in fig. 2. Theaccess network device 102 is capable of performing the methods provided by the embodiments of the present application. Theaccess network device 102 may include: a controller or processor 201 (theprocessor 201 is described below as an example), and atransceiver 202. Controller/processor 201 is also sometimes referred to as a modem processor (modem processor).Modem processor 201 may include a baseband processor (BBP) (not shown) that processes the digitized received signal to extract the information or data bits conveyed in the signal. As such, the BBP is typically implemented in one or more Digital Signal Processors (DSPs) withinmodem processor 201 or as a separate Integrated Circuit (IC) as needed or desired.

Thetransceiver 202 may be used to support the transceiving of information between theaccess network device 102 and the terminal device, as well as to support the radio communication between the terminal devices. Theprocessor 201 may also be used to perform various terminal device communication functions with other network devices. In the uplink, uplink signals from the terminal device are received via the antenna, demodulated by thetransceiver 202, and further processed by theprocessor 201 to recover traffic data and/or signaling information sent by the terminal device. On the downlink, traffic data and/or signaling messages are processed by the terminal device and modulated bytransceiver 202 to generate a downlink signal, which is transmitted via the antenna to the UE. Theaccess network device 102 may also include amemory 203 that may be used to store program codes and/or data for theaccess network device 102. Thetransceiver 202 may include separate receiver and transmitter circuits or may be the same circuit that performs the transceiving function. Theaccess network device 102 may further include acommunication unit 204 for supporting theaccess network device 102 to communicate with other network entities. For example, network devices for supporting theaccess network device 102 to communicate with a core network, etc.

Optionally, the access network device may further include a bus. Thetransceiver 202, thememory 203, and thecommunication unit 204 may be connected to theprocessor 201 via a bus. For example, the bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may include an address bus, a data bus, and a control bus, among others.

Fig. 3 is a schematic diagram of a possible structure of a terminal device in the wireless communication system. The terminal device can execute the method provided by the embodiment of the application. The terminal device may be either of the twoterminal devices 104. The terminal device includes atransceiver 301, an application processor (application processor)302, amemory 303, and a modem processor (modem processor) 304.

Transceiver 301 may condition (e.g., analog convert, filter, amplify, and upconvert, etc.) the output samples and generate an uplink signal, which is transmitted via an antenna to the base station as described in the above-described embodiments. On the downlink, the antenna receives a downlink signal transmitted by the access network device.Transceiver 301 may condition (e.g., filter, amplify, downconvert, digitize, etc.) the received signal from the antenna and provide input samples.

Modem processor 304, sometimes referred to as a controller or processor, may include a baseband processor (BBP) (not shown) that processes a digitized received signal to extract the information or data bits conveyed in the signal. The BBP is typically implemented in one or more numbers withinmodem processor 304 or as separate Integrated Circuits (ICs) as needed or desired.

In one design, a modem processor (modem processor)304 may include anencoder 3041, amodulator 3042, adecoder 3043, and ademodulator 3044. Theencoder 3041 is configured to encode a signal to be transmitted. For example, theencoder 3041 can be used to receive traffic data and/or signaling messages to be sent on the uplink and process (e.g., format, encode, interleave, etc.) the traffic data and signaling messages. Themodulator 3042 is configured to modulate an output signal of theencoder 3041. For example, the modulator may process symbol mapping and/or modulation, etc., of the encoder's output signals (data and/or signaling) and provide output samples. Thedemodulator 3044 is configured to perform demodulation processing on the input signal. For example,demodulator 3044 processes the input samples and provides symbol estimates. Thedecoder 3043 is configured to decode the demodulated input signal. For example, thedecoder 3043 deinterleaves, decodes, or the like the demodulated input signal, and outputs a decoded signal (data and/or signaling). Encoder 3041,modulator 3042,demodulator 3044, anddecoder 3043 may be implemented by a combinedmodem processor 304. These elements are processed according to the radio access technology employed by the radio access network.

Modem processor 304 receives digitized data, which may represent voice, data, or control information, fromapplication processor 302 and processes the digitized data for transmission. The modem processor may support one or more of various wireless communication protocols of various communication systems, such as LTE, new air interface, Universal Mobile Telecommunications System (UMTS), High Speed Packet Access (HSPA), and so on. Optionally, one or more memories may also be included inmodem processor 304.

Alternatively, themodem processor 304 and theapplication processor 302 may be integrated in a single processor chip.

Thememory 303 is used to store program code (also sometimes referred to as programs, instructions, software, etc.) and/or data used to support communication for the terminal devices.

It should be noted that thememory 203 or thememory 303 may include one or more memory units, for example, a memory unit inside theprocessor 201 or themodem processor 304 or theapplication processor 302 for storing program codes, or an external memory unit independent from theprocessor 201 or themodem processor 304 or theapplication processor 302, or a component including a memory unit inside theprocessor 201 or themodem processor 304 or theapplication processor 302 and an external memory unit independent from theprocessor 201 or themodem processor 304 or theapplication processor 302.

Processor 201 andmodem processor 301 may be the same type of processor or may be different types of processors. For example, the present invention may be implemented in a Central Processing Unit (CPU), a general purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, other Integrated circuits, or any combination thereof. Theprocessor 201 andmodem processor 301 may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the disclosure of the embodiments of the application. The processor may also be a combination of devices implementing computing functionality, including for example one or more microprocessor combinations, DSP and microprocessor combinations or system-on-a-chip (SOC) or the like.

Those of skill in the art would appreciate that the various illustrative logical blocks, modules, circuits, and algorithms described in connection with the aspects disclosed herein may be implemented as electronic hardware, instructions stored in a memory or another computer-readable medium and executed by a processor or other processing device, or combinations of both. As an example, the apparatus described herein may be used in any circuit, hardware component, IC, or IC chip. The memory disclosed herein may be any type and size of memory and may be configured to store any type of information as desired. To clearly illustrate this interchangeability, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. How such functionality is implemented depends upon the particular application, design choices, and/or design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the schematic diagram of the wireless communication system architecture shown in fig. 1, a wireless access network device, such as a base station, a wireless local area network access point, and various Transmission Reception Points (TRPs), provides an access service in a licensed frequency band or an access service in an unlicensed frequency band for a terminal device. The unlicensed frequency band is a frequency band that can be used for free, and different devices can share the use resources on the unlicensed frequency band. The operator can achieve the purpose of network capacity offloading by using the unlicensed frequency band resource, but the operator needs to comply with the regulatory requirements of different regions and different frequency spectrums on the unlicensed frequency band resource. Taking the unlicensed target band as an example of a 5GHz unlicensed band opened by each government, the coexistence specifications include Transmit Power Control (TPC), Dynamic Frequency Selection (DFS), channel occupancy bandwidth and Listen Before Talk (LBT), etc. Generally speaking, listen-before-talk LBT is an intersystem coexistence policy, and a wireless communication system needs to use an LBT rule when occupying an unlicensed frequency band for communication, and the LBT rule is specifically described below.

Take a wireless fidelity (Wi-Fi) communication system that can operate in an unlicensed frequency band at present as an example. One method of competing for resources applied by Wi-Fi communication systems is the LBT rule. The basic idea of the LBT rule is: before each communication device transmits data on a certain channel, it needs to detect whether the current channel is idle, that is, whether it can be detected that a nearby node is occupying the channel to transmit data, and this detection process is called Clear Channel Assessment (CCA). If the communication device detects that the channel is occupied, the communication device is currently unable to transmit data on the channel, otherwise, if the channel is detected to be free for a period of time, the communication device can transmit data, and generally speaking, in order to maintain friendly coexistence with other communication devices, the time for transmitting data on the channel is limited, and within the limited time range, the communication device does not need to evaluate the channel for free; or, within the limited time range, the communication device may also share the contended unlicensed frequency band resource with other communication devices. Specifically, other communication devices having a certain relationship with the communication device may use the unlicensed band resource with high priority. Here, the other communication device having a certain relationship with the communication device may be understood as the other communication device served by the communication device, for example, assuming that the communication device is a base station, the other communication device served by the communication device may be understood as a terminal device served by the base station, or, if the communication device is a terminal device, the other communication device having a certain relationship with the communication device may be understood as a serving base station of the terminal device or other user equipment served by the serving base station of the terminal device. Secondly, here, the high priority uses the unlicensed frequency band resource, which may include that other communication devices may not need to perform idle evaluation on a channel when using the unlicensed frequency band resource within the above-mentioned limited time range, or may also perform listening in a high priority CCA manner if idle evaluation is required.

For convenience of description, in the present application, the above-mentioned limited time range is referred to as a Maximum Channel Occupancy Time (MCOT). The specific value of MCOT is related to various regulations or, alternatively, to standard definitions. For example, in the 5GHz band, according to japanese regulations, MCOT may be 4 ms; according to european legislation, MCOT may be 13ms or 10 ms; according to the 3rd Generation partnership Project (3 GPP) standard protocol, the specific value of MCOT is related to the priority of LBT, and may be 2ms, 4ms, 6ms, 8ms or 10 ms; in the 60GHz band, the MCOT may be 9ms, according to european regulations.

In the above process, detecting whether the channel is idle may be implemented by signal detection, energy detection, and the like. Specifically, if detecting whether the channel is idle is signal detection, correspondingly, if a specific signal is not detected (for example, for a Wi-Fi system, the specific signal may be a Preamble), the channel may be considered idle, and at this time, the detection device may perform data transmission using the unlicensed frequency band; if energy detection is adopted, if the received or detected energy is lower than a certain threshold value, the channel can also be considered to be idle, and similarly, at this time, the detection device can utilize the unlicensed frequency band for data transmission.

In a region with LBT constraints, a device requiring an unlicensed frequency band to be used needs to detect whether a channel is idle before data transmission is performed by using the unlicensed frequency band, that is, data transmission on the unlicensed frequency band is opportunistic. In the future fifth generation (5G) communication system, the New Radio (NR) based communication system may also use unlicensed frequency band resources for data communication.

An embodiment of the present application provides a transmission method of a data transmission format, as shown in fig. 4, the transmission method may be applied to a network architecture shown in fig. 1, an access network device in the method may be applied to the schematic structural diagram in fig. 2, and a terminal device may be applied to the schematic structural diagram in fig. 3. The method provided by the embodiment of the present application takes data transmission in an unlicensed frequency band as an example, but the method provided by the embodiment of the present application is not limited to the unlicensed frequency band, and the transmission method includes the following steps:

step 401, the terminal device determines a first system parameter or a second system parameter used when performing data transmission with the access network device.

Here, the first system parameter and the second system parameter are both system parameters (numerology) that can be used when the terminal device and the access network device perform data transmission, and the system parameters in this embodiment of the present application include subcarrier spacing (SCS) and/or slot duration (slot duration). For example, a 5G NR system is a communication system that can support a variety of subcarrier spacing SCS, with the duration or duration (duration) of each slot being related to the size of the subcarrier. It should be noted that the method provided by the embodiment of the present application is only an example of the 5G NR system, but is not limited to the 5G NR system, and any system supporting multiple system parameters may be applicable.

Table 1 shows a corresponding table of supported subcarrier intervals and corresponding slot durations in the NR system. As can be seen from table 1, the NR system can support at least 6 scs (khz), corresponding to 6 different slot durations (ms). Generally, the SCS and slot duration corresponding to the same system parameter are included, and the larger the SCS interval, the smaller the slot duration. We use different SCS as one of the system parameters, i.e. each row from the second row to the seventh row in table 1 can be seen as one of the system parameters.

Table 1 correspondence table between different SCS and Slot durations

SCS(kHz)	slot duration(ms)
		15	1
30	0.5
		60	0.25
120	0.125
		240	0.0625
480	0.03125

As can be seen from table 1, the slot durations corresponding to the SCS of 15kHz, 30kHz, and 60kHz are 1ms, 0.5ms, and 0.25ms, respectively, and the schematic diagram of the SCS and the corresponding different slot durations is shown in fig. 5.

In the implementation method of the present application, the terminal device may determine the system parameters used when the terminal device and the access network device perform data transmission in the following manner. The data transmission herein includes control data transmission and/or service data transmission, wherein the system parameters corresponding to the control data transmission and the service data transmission may be the same or different.

(1) And (4) presetting a criterion. For example, after the terminal device establishes Radio Resource Control (RRC) link with the access network device, the system parameters corresponding to the synchronization channel and/or the broadcast channel detected when the access network device is accessed may be used as the system parameters used when the terminal device and the access network device perform data transmission. The terminal device may determine the system parameters corresponding to the detected synchronization channel and/or broadcast channel in a blind detection manner.

(2) And (4) high-layer signaling. For example, when the terminal device accesses the access network device, the system parameters used by the access network device and the terminal device for data transmission may be determined through a higher layer broadcast signaling or a user-specific higher layer signaling. The higher layer broadcast signaling may include signaling transmitted through a broadcast channel, such as control information included in a Synchronization Signal Block (SSB), control information included in Remaining Minimum System Information (RMSI), control information included in Optional System Information (OSI), control information included in demand-based system information (on-demand system information), and the like. The user-specific higher layer signaling may comprise, for example, RRC signaling.

(3) Physical layer signaling. For example, after the RRC connection is established between the terminal device and the access network device, the system parameters used by the access network device and the terminal device for data transmission may be determined through physical layer signaling. The physical layer signaling may include signaling sent over a physical layer channel, such as a Physical Downlink Control Channel (PDCCH). The physical layer signaling may be a common physical layer signaling or a terminal device specific physical layer signaling, where the terminal device specific physical layer signaling is a signaling scrambled by a radio network identity (RNTI).

(4) Media Access Control (MAC) signaling. The MAC signaling may be transmitted through a physical layer data traffic channel, for example, through a Physical Downlink Shared Channel (PDSCH).

Step 402, the access network device determines the number of time units for transmitting and/or receiving data.

The time unit for sending and/or receiving data indicates that the access network device sends data to the terminal device and the terminal device sends data to the access network device in the time unit.

In the embodiment of the present application, one time unit may be understood as one slot in the NR system. In the following description, for simplicity of description, the time slots are used for description. However, the embodiment of the present invention is not limited to this, and can be applied to time units of other expressions.

The access network device determines the number of time slots for transmitting and/or receiving data, which may also be understood as that the access network device determines the data transmission duration for transmitting and/or receiving data. This is because, if the duration of the time slot is known or fixed, the access network device determines the number of time slots for sending and/or receiving data, which is equivalent to the access network device determining the data transmission duration for sending and/or receiving data, where the sending data transmission duration may also be understood as the downlink data transmission duration or the downlink data transmission time period, and the receiving data transmission duration may also be understood as the uplink data transmission duration or the uplink data transmission time period.

After the access network device competes for the unlicensed frequency band resource, the time period for downlink data transmission and uplink data transmission on the unlicensed frequency band can be adaptively determined according to the uplink and downlink data transmission requirements. For convenience of description, in the last MCOT, a time period used by the access network device for downlink data transmission and uplink data transmission may be regarded as a one-time frame structure. The frame structure on the unlicensed frequency band is also flexible when the access network device is in data transmission (including transmission and/or reception) because the access network device can adaptively select the frame structure mode.

Fig. 6 shows a schematic diagram of one frame structure, and fig. 7 shows another frame structure schematic diagram. Fig. 6 is applicable to service transmission with more uplink data transmission and less downlink data transmission, for example, after the access network device contends for the unlicensed frequency band resource, if the load of the uplink service (corresponding to uplink data) to be scheduled for transmission is large, the access network device may utilize 1 slot for downlink data transmission (for example, sending uplink scheduling control information, etc.) within a limited time range, and then the remaining slots are all used for receiving the uplink data sent by the terminal device.

Fig. 7 is suitable for service transmission that changes more dynamically and flexibly, and a downlink data transmission part and an uplink data transmission part included in each time slot in fig. 7 may be different from each other, so that such a design is more suitable for a scenario in which a service changes with the time slot as a granularity. For example, after the access network device transmits downlink data, it is desirable to receive the feedback information transmitted by the terminal device as soon as possible, in which case, a self-contained (self-contained) slot structure (e.g., the slot structure of the third slot in fig. 7) may be used.

In the embodiment of the present application, a slot having a self-contained slot structure means that an Orthogonal Frequency Division Multiplexing (OFDM) symbol for downlink data transmission and an OFDM symbol for uplink data transmission are simultaneously included in the slot. In particular, if the downlink data transmission part in a time slot contains control information for scheduling the terminal device to transmit uplink data, the uplink data transmission part scheduled by the scheduling information may be included in the time slot; or, if the downlink data transmission part in a time slot includes service data sent to the terminal device, the terminal device may include the uplink data transmission part in the time slot for the uplink feedback information of the service data. Here, the uplink feedback information may include a hybrid automatic repeat request acknowledgement (HARQ-ACK), wherein the HARQ-ACK may include an Acknowledgement (ACK) and a Negative Acknowledgement (NACK).

It should be noted that, in combination with the frame structure feature of the access network device on the unlicensed frequency band, in the embodiment of the present application, the number of time slots for sending and/or receiving data determined by the access network device may include the following different understandings: the number of time slots used by the access network device for sending data (the number of downlink time slots), the number of time slots used by the access network device for receiving data (the number of uplink time slots), the sum of the number of time slots used by the access network device for sending data and the number of time slots used by the access network device for receiving data, and the number of time slots used by the access network device for sending and receiving data (the time slots include portions used for downlink data transmission and uplink data transmission reception). Taking fig. 6 as an example, in the time range shown, the number of downlink time slots is 1, the number of uplink time slots is 5, the sum of the number of time slots for transmitting data and the number of time slots for receiving data is 6, and the number of time slots for transmitting and receiving data is 0. Taking fig. 7 as an example, in the time range shown, the number of downlink timeslots is 1, the number of uplink timeslots is 1, the number of timeslots for transmitting and receiving data is 4, and the total number of timeslots only used for transmitting data and timeslots only used for receiving data is 2. Furthermore, the method is simple. In the NR system, a data transmission section included in one slot may include an "unknown" section in addition to a downlink data transmission section and an uplink data transmission section. A slot may be all unbwned in duration or only a portion of the time may be unbwned. In the embodiment of the present application, for simplicity of description, if a slot includes only a blank part and an uplink data transmission part, the slot may be regarded as an uplink slot; if a time slot only comprises an unknown part and a downlink data transmission part, the time slot can be regarded as a downlink time slot; if a time slot includes both an uplink data transmission section and a downlink data transmission section, and also includes an Unknown section, the time slot can be regarded as a time slot for transmitting data and receiving data.

Step 403, the access network device sends first indication information to the terminal device, where the first indication information is used to indicate the number of time units for sending and/or receiving data by the access network device.

Optionally, in an implementation method of the present application, the first indication information for indicating the number of time units (e.g., time slots) may have the following form:

(1) the first indication information may directly indicate the number of slots.

The number of time slots indicated by the first indication information includes a transmission structure corresponding to each time slot (for example, whether the transmission structure is used for downlink data transmission or uplink data transmission, or whether the transmission structure is used for both downlink data transmission and uplink data transmission, or belongs to an unknown state). The transmission structure may be indicated by the first indication information, or may be indicated by other indication information. For example, the first indication information indicates that the number of the time slots is 5, and then the access network device may indicate, through the first indication information or other indication information, the transmission structure corresponding to all time slots or a part of time slots in the 5 time slots.

(2) The first indication information indicates a transmission structure corresponding to the time slot.

According to different transmission structures corresponding to the time slots, the terminal device can determine the number of the time slots corresponding to the different transmission structures, that is, the terminal device can determine the number of the time slots for the access network device to send and/or receive data. Based on this, it can also be understood that the first indication information is used for indicating the number of time units for the access network device to transmit and/or receive data. For example, the transmission structure corresponding to the first indication information indication time slot has the following representation form or the content indicated by the first indication information is:

[ Downlink time slot downlink time slot uplink time slot ]

The terminal device may determine that the number of time slots for transmitting data by the access network device is 2, and the number of time slots for receiving data is 4.

(3) The first indication information indicates the transmission time length of data transmission between the access network equipment and the terminal equipment.

The terminal device may determine the number of time slots for transmitting and/or receiving data by the access network device according to the transmission duration and the time slot duration corresponding to the system parameter used when referring to the access network device for data transmission. Based on this, it can also be understood that the first indication information is used for indicating the number of time units for the access network device to transmit and/or receive data. For example, the first indication information indicates that a transmission duration for uplink data transmission (or data reception by the access network device) is 4 milliseconds (ms), and a timeslot transmission duration corresponding to a system parameter used for uplink data transmission between the terminal device and the access network device is 0.5ms (SCS may be 30kHz), so that the terminal device may determine that the number of time units for data reception by the access network device is 4/0.5 — 8.

The first instruction information may be directly or indirectly indicative of the above-described contents, regardless of the form of representation of the first instruction information. The indirect indication may include a first indication information indicating an index information associated with the configured content of the higher layer signaling (e.g., RRC signaling). For example, the first indication information may include 2 bits, and may correspond to 4 different indication contents altogether, and the 4 different indication contents may be configured by the RRC signaling implementation.

More specifically, the first indication information may be common control information, and is carried in a downlink common control channel. For example, the first indication information may be a Slot Format Indicator (SFI) in the NR system, and is carried in a group common physical downlink control channel (group common PDCCH). The SFI may indicate one slot structure or may indicate a plurality of slot structures. In particular, when the SFI indicates a multiple slot structure, it can be seen that the SFI indicates the number of time units for which the access network device transmits and/or receives data.

Step 404, the terminal device receives the first indication information sent by the access network device.

It should be noted that, in the method provided in the embodiment of the present application, the numbers of the steps 401 and 402 do not limit the order, that is, the step 401 may be executed before the step 402 or after the step 402. Likewise, step 401 may be performed before step 404 or after step 404.

And 405, the terminal equipment determines the number of the time units according to the first indication information.

Wherein the number of the time units has the following characteristics: when the terminal device determines that the terminal device and the access network device use the first system parameter when performing data transmission, the number of the time units is an element included in a first set; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the number of the time units is an element included in the second set.

The first set corresponds to the first system parameter, the second set corresponds to the second system parameter, the first set includes at least one value M, M is greater than N, N is a maximum value in the second set, and a subcarrier interval corresponding to the second system parameter is smaller than a subcarrier interval corresponding to the first system parameter.

It should be noted that, preferably, the time units corresponding to the M and N values herein have the same time unit structure. For example, if the value M corresponds to a time unit for uplink data transmission, the value N also corresponds to a time unit for uplink data transmission; the M value corresponds to a time unit for downlink data transmission, and the N value also corresponds to a time unit for downlink data transmission; the value of M corresponds to the sum of the number of time units used for downlink data transmission and the number of time units used for uplink data transmission, and the value of N corresponds to the sum of the number of time units used for downlink data transmission and the number of time units used for uplink data transmission.

In the NR communication system, if the access network device notifies the structure of the current time slot using the SFI of each time slot, so that the terminal device knows the transmission duration of data transmission with the access network device, it is obvious that the signaling overhead is large, especially when several consecutive time slots have the same structure. The method provided by the embodiment of the application effectively informs the frame structure on the frequency band under the condition of ensuring the signaling overhead, so that the terminal equipment acquires the transmission time of data transmission.

Fig. 8 is a schematic diagram illustrating an indication of a transmission duration provided in an embodiment of the present application, where a time unit takes a timeslot of uplink transmission as an example, a duration of the timeslot is measured by taking 1ms as a granularity, and accordingly, a terminal device obtains the transmission duration by taking 1ms as a unit. For example, the first indication information includes L bits (bits) for indicating the transmission duration, where L is a positive integer. In this embodiment of the present application, the L bits of information may be preconfigured or configured by the access network device using higher layer signaling, where the higher layer signaling may be higher layer broadcast signaling or RRC signaling. For example, when the access network device configures control information including L bits, a specific value of L may be configured. Here, the L bits of information may include at least one of:

the size of the L bits of control information (e.g., the number of original information bits);

a time frequency resource range in which a control channel carrying control information comprising L bits is located; the time-frequency resource range may be represented, for example, using a control resource set (CORESET);

radio Network Temporary Identity (RNTI) used by the L bits of control information.

L bits can be expressed as 2^LThe corresponding values of the states form a set {1,2, … …,2}^L}. The terminal device receives the first indication information sent by the access network device, and can determine a certain value Y in a set formed by L bits in the first indication information, and determine the transmission duration. Where Y may be preconfigured by the access network equipment.

The terminal device may determine the transmission duration corresponding to the number of time slots for the access network to transmit and/or receive data according toformula 1, that is, the terminal device may determine the transmission duration D corresponding to the number of time slots for the access network to transmit and/or receive data according to Y in the first indication information, actually used SCS (first system parameter), and reference SCS (second system parameter):

wherein k is slot duration corresponding to the actually used SCS. As described above, in the embodiment of the present application, the number of time units can be determined by determining the transmission duration.

Take reference SCS as 15kHz, Y being 3 as an example.

When the actually used SCS is 15kHz, it can be seen from table 1 that the slot duration corresponding to this SCS is 1ms, i.e., k is 1 ms. The terminal device determines D3 × (15kHz/15kHz) × 1ms 3ms according toequation 1.

When the actually used SCS is 30kHz, the slot duration under the SCS is 0.5ms, i.e., k is 0.5 ms. The terminal device determines that D is 3 × (30kHz/15kHz) × 0.5ms is 3ms according toequation 1.

When the actually used SCS is 60kHz, k is 0.25ms, and the terminal device determines D to 3 × (60kHz/15kHz) × 0.25ms to 3ms according toequation 1.

In another embodiment provided in this application, the terminal device may further determine the transmission duration according to formula 2, that is, the terminal device may determine the transmission duration corresponding to the number of slots for transmitting and/or receiving data by the access network according to Y in the first indication information and the corresponding slot duration 1ms (second system parameter):

d ═ Y × 1ms (formula 2)

Wherein Y is as previously described and is the set {1,2, … …,2^LOne value of (c). As described above, in the embodiment of the present application, the number of time units can be determined by determining the transmission duration.

Again, Y ═ 3 is taken as an example.

When the actually used SCS is 15kHz, 30kHz, or 60kHz, the terminal device determines that D is 3 × 1ms or 3ms according to equation 2.

Suppose that the duration set corresponding to the first system parameter includes P elements, each of which can be represented by I_iX t1, wherein I_iIs a natural number, and i ═ 1,2, … …, P; t1 is the slot duration in the first system parameter. Here, I_iIt can also be understood that the access network device sends and ≥ is the access network device's transmit and ≥ when the first system parameter is used by the access network device and the terminal device for data transmissionOr the number of first time slots corresponding to the number of time units for receiving data, wherein the first time slots are time slots corresponding to the first system parameters. For example, when the subcarrier spacing in the first system parameter is 60kHz, the first slot corresponding to the first system parameter has the following characteristics: a slot with a slot duration of 0.25ms can be considered the first slot. It should be noted that, the duration set corresponding to the first system parameter may be understood as a set formed by transmission durations of time units for sending and/or receiving data by the access network device when the access network device and the terminal device perform data transmission using the first system parameter, where I_iThe set of (I ═ 1,2, … …, P) can be understood as the first set, I, in the embodiments of the present application_iIt can be understood that when the terminal device and the access network device use the first system parameter for data transmission, the access network device sends and/or receives data in terms of the number of time units.

On the other hand, assume that the duration set corresponding to the second system parameter includes Q elements, each of which may be J_jX t2, wherein J_jIs a natural number, and j is 1,2, … …, Q, t2 is the slot duration corresponding to the second system parameter. Here, for the same reason, J_jIt can also be understood that when the access network device and the terminal device perform data transmission using the second system parameter, the access network device sends and/or receives data in a number of second time slots corresponding to the number of time units, where the second time slot is a time slot corresponding to the second system parameter. It should be noted that, the duration set corresponding to the second system parameter may be understood as a set formed by transmission durations for the access network device to send and/or receive data when the access network device and the terminal device perform data transmission using the second system parameter, where J is_jThe set of (J ═ 1,2, … …, Q) can be understood as the second set, J, in the embodiments of the present application_jIt can be understood that the number of time units for the access network device to transmit and/or receive data when the terminal device and the access network device use the second system parameter for data transmission.

Suppose J_maxIs J_jOf (1), i.e. J_maxIs a second setIf the maximum value in the first system parameter is greater than the maximum value in the second system parameter, the duration set corresponding to the first system parameter at least includes one element, and the element is assumed to be I_xX t1, wherein I_xIs one value in the first set. Then the method provided in the examples of this application, I_x>J_maxAnd the subcarrier interval corresponding to the first system parameter is larger than the subcarrier interval corresponding to the second system parameter. That is, as described above, no matter what type of system parameters are used in data transmission between the access network device and the terminal device, the results of the transmission duration indications under different numerologies are close or identical, based on which, if the subcarrier spacing corresponding to the first system parameter is greater than the subcarrier spacing corresponding to the second system parameter, the slot duration corresponding to the first system parameter is smaller than the slot duration corresponding to the second system parameter, the duration set corresponding to the first system parameter includes at least one element, the number of the first slots corresponding to the element is certainly greater than the second slot number corresponding to the largest element included in the duration set corresponding to the second system parameter, and the first set corresponding to the first system parameter includes at least one value greater than the largest value in the second set corresponding to the second system parameter.

For example, assuming that the SCS corresponding to the first system parameter is 60kHz, the SCS corresponding to the second system parameter is 15kHz, and the first indication information includes L bits for indicating the transmission duration, when the data transmission between the access network device and the terminal device uses the second system parameter, the maximum value of the transmission duration that can be indicated is 2^LX t2 (slot duration t2 is 1ms when SCS corresponding to the second system parameter is 15kHz), here 2^LCan correspond to the aforementioned J_max. In another aspect, when the first system parameter is used for data transmission between the access network device and the terminal device, the indicated transmission duration may be one of the following:

when the SCS corresponding to the first system parameter is 60kHz and the slot duration t1 is 0.25ms (refer to table 1), the indicated transmission duration may be one of the following:

1×0.25，2×0.25，……，1×(60kHz/15kHz)×0.25，2×(60kHz/15kHz)×0.25，……，2^L×(60kHz/15kHz)×0.25

here, 1,2, … …,1X (60kHz/15kHz), 2^LX (60kHz/15kHz) may correspond to I described previously_i. Obviously, the number of time units that can be indicated by the data transmission between the access network equipment and the terminal equipment by using the first system parameter (SCS 60kHz) is at least 2^LX (60kHz/15kHz) is greater than the maximum 2 of the number of time units that can be indicated by the use of a second system parameter (SCS of 15kHz) for data transmission between the access network device and the terminal device^L。

As a typical example of the above feature, I_xAnd J_maxThere is a certain proportional relationship between them, i.e. I_x/J_maxS (SCS corresponding to the first system parameter/SCS corresponding to the second system parameter), where S is a positive integer.

As another typical example of the above feature, I corresponding to each element included in the first set corresponding to the first system parameter is used_iIn the second set corresponding to the second system parameter, J can be found in proportion to the second system parameter_jIn which I_i＝K1*J_jAnd K1 is a positive integer. Or J corresponding to each element included in the second set corresponding to the second system parameter is used_jIn the first set corresponding to the first system parameter, I proportional to the first system parameter can be found_iWherein J_j＝1/K2*I_iWherein K2 is a positive integer.

For example, as mentioned above, assuming that 2 bits are included in the control information to indicate the transmission duration, then 2 bits may respectively correspond to 1,2,3, and 4, and when the SCS is 15kHz (assuming as the second system parameter), the slot number (which may be understood as J) corresponding to the indicated transmission duration_jValues of) are 1,2,3,4, respectively; when the SCS is 60kHz (assuming the first system parameter), the indicated transmission duration corresponds to the slot number (which can be understood as I)_iValues of (d) are 4,8,12, 16, respectively. Based on this, it can be observed that I corresponding to each element included in the first set corresponding to the first system parameter corresponds to_iJ corresponding to each element included in the second set corresponding to the second system parameter_jThere is a certain proportionality (e.g., a proportionality value of 4).

Optionally, in this embodiment, the number of elements included in the first set may be the same as the number of elements included in the second set, and the first set may be defined by { a }₁,a₂，…，a_wThe second set may be by { b }₁,b₂,…,b_wMeans that, in this case,

is an integer multiple of K, wherein a_i、b_iW is a positive integer, and i is a natural number greater than 0 and not greater than w.

Optionally, in this embodiment of the present application, the number of elements included in the first set may be different from the number of elements included in the second set, for example, the number of elements included in the first set is greater than the number of elements included in the second set, and the first set may be defined as { a }₁,a₂，…，a_xDenoted by { b }, the second set may be denoted by { b }₁,b₂,…,b_yMeans that the elements in the second set can always find the elements in the first set that have a fixed proportional relationship with them, i.e. the elements in the second set can always find the elements in the first set that have a fixed proportional relationship with them

Is an integer multiple of K, where i is a natural number greater than 0 and not greater than y, x, y are positive integers, x is greater than y, and the set { a }₁,a₂，…，a_yIs the set { a }₁,a₂，…，a_xA proper subset of.

Optionally, in this embodiment of the present application, the number of elements included in the first set may be different from the number of elements included in the second set, for example, the number of elements included in the first set is smaller than the number of elements included in the second set, and the first set may be represented by { a }₁,a₂，…，a_uDenoted by { b }, the second set may be denoted by { b }₁,b₂,…,b_vMeans that an element in the first set can always find an element in the second set that has a fixed proportional relationship with it, i.e. the element in the first set can always find an element in the second set that has a proportional relationship with it

Is an integer multiple of K, where i is a natural number greater than 0 and not greater than u, v are positive integers, u is less than v, and the set { b₁,b₂,…,b_uIs the set { b }₁,b₂,…,b_vA proper subset of.

Optionally, in this embodiment of the present application, the first set includes at least one element, and a ratio between the element and the at least one element in the second set is an integer multiple of K, where K is a ratio between a subcarrier interval corresponding to the first system parameter and a subcarrier interval corresponding to the second system parameter. For example, for the first set { a }₁,a₂，…，a_pDenotes that the second set is b₁,b₂,…,b_qDenotes that there is at least one element (or value) a in the first set_iWith at least one element (or value) b of the second set_jThe ratio between is an integer multiple of K. In this example, some but not all of the elements in the first set have a fixed proportional relationship with some but not all of the elements in the second set.

It should be noted that, in the embodiments of the present application, values in a set and elements in a set may be understood as the same concept.

It should be noted that, if the number of slots corresponding to each element in the first set corresponding to the first system parameter can find the number of slots corresponding to a corresponding proportion in the second set corresponding to the second system parameter, the transmission duration that cannot be proportional to the slot determined by using the second system parameter for data transmission cannot be indicated by the indication information, that is, the portion circled in fig. 8.

In fig. 8, when the SCS is 30kHz, 1 slot (0.5ms) included in the transmission duration cannot be indicated by the indication information; when the SCS is 60kHz, 3 slots included in the transmission duration (each slot has a transmission duration of 0.25ms) cannot be indicated by the indication information. Alternatively, the transmission duration part that cannot be indicated by the slot format indication SFI or the terminal device-specific control information indication information may be used jointly. The terminal device specific control information includes control information that can be demodulated only by a specific terminal device, for example, control information scrambled using a terminal device specific RNTI. For example, referring to fig. 8, when the SCS is 60kHz, the access network device may indicate 3 uplink slots after 3ms using the SFI, where the indication of the 3 uplink slots may be displayed, and the indication of the starting position of the 3 uplink slots (e.g., after 3ms here) may be explicit or implicit. Explicit means that after the SFI includes a control field to indicate specifically for 3ms, implicit may be an indication of combining indication information, and the terminal device may default to the slot number indicated by the SFI (second indication information) after the duration indicated by the first indication information.

For another example, the duration portion circled in fig. 8 may be indicated by terminal device-specific control information. As shown in fig. 8, the terminal device specific control information may be sent on the first downlink slot, and because based on the implementation of fig. 8, the time delay between the timeslot where the uplink/downlink control information is located and the circled downlink/uplink timeslot is generally greater than the minimum processing capacity, for example, greater than 1 timeslot, the terminal device specific control information may be scheduled on the last several uplink/downlink timeslots regardless of the terminal device capacity.

Fig. 9 shows another implementation where the resolution indication information does not indicate full, and the above description applies equally to fig. 9. Unlike fig. 8, the time length portion that cannot be indicated by the indication information is located within the first 1 or several slots after the end of the downlink, i.e., the circled portion in fig. 9 for the SCS of 30kHz and the SCS of 60 kHz. The circled part can use an explicit indication method, and the indication information can be carried in the same downlink control channel with the indication information indicating the duration through indication of the indication information, or can be carried separately; or, an implicit indication method may also be used, that is, the terminal device may default that the uplink time slot is included between the downlink time slots and between the time durations indicated by the indication information. It should be noted that, if the encircled portion of fig. 9 is notified by using the terminal device specific control information, the access network device may also first acquire the capability of the terminal device, and then determine to which terminal devices the encircled portion of fig. 9 may be scheduled by using the specific signaling.

It should be noted that, no matter what system parameters are used, if the corresponding timeslot includes both downlink DL and uplink UL, the transmission duration in the timeslot may not be indicated by the indication information, and in this case, the SFI may also be used to indicate the transmission duration part in the slot. This is valid for both the implementations of fig. 8 and 9. For example, with SCS 60kHz as an example, the transmission duration represented by the blank part in fig. 10 may be indicated by SFI, for example, may be implemented by an unknown state indicated by SFI.

It should be noted that, in the embodiment of the present application, the indication information for indicating the transmission duration may also be indicated by using only the SFI.

As another alternative embodiment, a transmission structure corresponding to the timeslot indicated by the first indication information is taken as an example for description. It can be understood that, when the first indication information indicates a transmission structure corresponding to at least one timeslot, the terminal device may determine, according to the first indication information, the number of timeslots corresponding to a specific transmission structure, which is equivalent to determining the number of time units for the access network device to transmit and/or receive data.

For example, when the subcarrier spacing used for data transmission between the access network device and the terminal device is 15kHz (corresponding to the second system parameter), the maximum number of first timeslots that can be indicated by the first indication information is 4, and the content indicated by the first indication information or the content corresponding to the first indication information is

Second time slot withtransmission structure 1 second time slot with transmission structure 2 second time slot withtransmission structure 3 second time slot withtransmission structure 4

It can be seen that, in the present example, the content indicated by the first indication information includes a transmission structure corresponding to each time slot in addition to the number of time slots (including 4 time slots). It should be noted that the

transmission structures

1,2,3, and 4 are only used to distinguish the transmission structures corresponding to different timeslots, that is, the

transmission structures

1,2,3, and 4 may be the same transmission structure or different transmission structures, or some transmission structures are the same and some transmission structures are different. More generally, thetransmission structure 1, the transmission structure 2, thetransmission structure 3, and thetransmission structure 4 may be any one of the transmission formats shown in the following table 2.

Table 2 schematic table of slot format

Table 2 time slot format schematic table (continuation)

In table 2, 256 different slot formats (format 0 to format 255) can be supported, but NR currently supports only 62 slot formats with definite meanings, formats 62 to 255 are currently reserved states (reserved), where one slot format is represented by different transmission types corresponding to 14 OFDM symbols included in the slot, where d (downlink) represents that the OFDM symbol is used for downlink data transmission, u (uplink) represents that the OFDM symbol is used for uplink data transmission, and x (flexible) represents that the OFDM symbol is in a previous state (unknown). On the other hand, with the method provided by the embodiment of the present application, when the subcarrier interval used for data transmission between the access network device and the terminal device is 30kHz (corresponding to the second system parameter), the content indicated by the first indication information or the content corresponding to the first indication information may be the content indicated by the first indication information or the content corresponding to the first indication information

First slot withtransmission structure 1 first slot with transmission structure 2 first slot withtransmission structure 3 first slot withtransmission structure 4 first slot with transmission structure 5 first slot with transmission structure 6 first slot with transmission structure 7 first slot with transmission structure 8 first slot

It should be understood that thetransmission structures 1 to 8 are only used to distinguish the transmission structures corresponding to different timeslots, and may be any one of the timeslot formats in table 2. Based on this example, it can be observed that, when data transmission between the access network device and the terminal device uses different system parameters, the number of time units indicated by the first indication information has the following characteristics: the first indication information with the large SCS indicates that the number of the first time slots is larger than the maximum number of the second time slots indicated by the first indication information with the small SCS. Because the slot duration for the SCS large system parameter is smaller than the slot duration for the SCS small system parameter.

Therefore, by using the method of the embodiment of the present application, when data transmission between the access network device and the terminal device uses different system parameters, the first indication information may indicate comparable or the same transmission duration. The method and the device are particularly suitable for the unlicensed frequency band resource, because after the access network device competes for the unlicensed frequency band resource, the data transmission time for data transmission on the unlicensed frequency band resource is limited, for example, limited by MCOT, and the length of MCOT is generally restricted by regional regulations and is irrelevant to different system parameters, so that by adopting the implementation manner of the application, the design of the first indication information under different system parameters can be simplified, and the effective data transmission format and/or the indication of the number of time units corresponding to data transmission can be realized.

Optionally, in this embodiment of the present application, the terminal device may periodically detect the first indication information sent by the access network device, and accordingly, the access network device may periodically send the first indication information. Assuming that the terminal device detects the first indication information every m slots, in order to ensure that the terminal device can know the transmission structure corresponding to each slot, the first indication information may indicate the transmission structure corresponding to each slot of the m slots. With the method of the embodiment of the present application, particularly, when the data transmission between the access network device and the terminal device uses the first system parameter with the large SCS, the number of time slots indicated by the first indication information may be greater than the number of time slots that can be indicated by the first indication information when the data transmission between the access network device and the terminal device uses the second system parameter with the small SCS. Correspondingly, with the method of the embodiment of the present application, when the first system parameter with the large SCS is used for data transmission between the access network device and the terminal device, the period for the terminal device to detect the first indication information is greater than that when the second system parameter with the small SCS is used for data transmission between the access network device and the terminal device, the period for the terminal device to detect the first indication information is greater.

The following is directed to several specific forms of the transmission structure indicated by the first indication information when different system parameters are used for data transmission between the access network device and the terminal device. The SCS corresponding to the first system parameter is 60kHz, and the SCS corresponding to the second system parameter is 15 kHz.

(1) When the second system parameter is used for data transmission between the access network device and the terminal device, the content of the first indication information, e.g. the SFI indication, may be as shown in table 3.

Table 3SCS 15kHz, the first indication information indicates a content example table

Format	Time slot	1	Time slot 2	Time slot 3	Time slot 4
						First format	Downlink time slot	Downlink time slot	Downlink time slot	Downlink time slot
Second format	Downlink time slot	Downlink time slot	Downlink time slot	Uplink time slot
					Third format	Downlink time slot	Downlink time slot	Uplink time slot	Uplink time slot
Fourth format	Downlink time slot	Uplink time slot	Uplink time slot	Uplink time slot

In table 3, when the SCS is 15kHz, the number of slots indicated by the first indication information is 4, and for different formats, the number of time units for transmitting data and the number of time units for receiving data by the access network device indicated by the first indication information are [ 40 ], [ 31 ], [ 22 ], [ 13 ], where X in [ X Y ] denotes the number of time units for transmitting data by the access network device, Y denotes the number of time units for receiving data by the access network device, andslots 1 to 4 are understood as the first to fourth slots indicated by SFI, that is, different slots corresponding to the order indicated by SFI from the previous to the next in terms of time. By adopting the method of the embodiment of the application, when the data transmission between the access network device and the terminal device uses the first system parameter, the number of the downlink time slots indicated by the first indication information is at least larger than 4, or the number of the uplink time slots indicated by the first indication information is at least larger than 3, or the total number of the time slots used for the downlink data transmission and the uplink data transmission indicated by the first indication information is larger than 4.

In this case, the contents of the first indication information, e.g., SFI indication, may be as shown in table 4. In table 4, S1 representsslot 1, S2 represents slot 2, and so on, and S1 to S16 represent the 1 st to 16 th slots indicated by SFI, and D and U respectively represent whether the slot is used for downlink data transmission or uplink data transmission. Based on table 4, for different formats (indicated by 0,1,2, and 3 in table 4), when the SCS used for data transmission between the access network device and the terminal device is 60kHz, the number of slots for transmitting data and the number of slots for receiving data by the access network device, which are indicated by the first indication information, are [ 160 ], [ 124 ], [ 88 ], [ 412 ], respectively. Based on the above description, it can be observed that, when the SCS is 15kHz, the number of downlink timeslots indicated by the first indication information may be {4,3,2,1}, the number of uplink timeslots indicated by the first indication information may be {0,1,2,3}, and the number of timeslots indicated by the first indication information may be 4, which may correspond to the second set respectively. On the other hand, when SCS is 60kHz, the number of downlink slots indicated by the first indication information may be {16,12,8,4}, the number of uplink slots indicated may be {0,4,8,12}, and the number of slots indicated may be 16, and these may correspond to the first set, respectively.

In this example, any one element included in the first set may find an element proportional to the element in the second set, and the proportional relationship between the two elements is related to the proportional relationship between the first system parameter and the second system parameter, and taking the number of uplink timeslots indicated by the first indication information as an example, the ratio between the number of uplink timeslots indicated by SCS 60kHz and the number of uplink timeslots indicated by SCS 15kHz may be: 12/3, 8/2, 4/1, and the like. Similarly, the number of downlink timeslots indicated by the first indication information is taken as an example, and the description is also similar. That is, in general, in this example, when SCS is 15kHz, X, or Y, or X and Y in [ X Y ] can be considered as elements included in the second set; when SCS is 60kHz, X, or Y, or X and Y in [ X Y ], can be considered as elements included in the first set.

Table 4 SCS 60kHz, the first indication information indicates the content example table

(2) When the second system parameter is used for data transmission between the access network device and the terminal device, the content of the first indication information, e.g. the SFI indication, may be as shown in table 5.

Table 5 SCS 15kHz, the first indication information indicates the content example table

Format	Time slot	1	Time slot 2	Time slot 3	Time slot 4
						First format	Downlink time slot	Downlink time slot	Downlink time slot	Uplink time slot
Second format	Downlink time slot	Downlink time slot	Uplink time slot	Does not indicate
					Third format	Downlink time slot	Uplink time slot	Uplink time slot	Does not indicate
Fourth format	Downlink time slot	Uplink time slot	Does not indicate	Does not indicate

Table 5 is mainly different from table 3 in that the number of timeslots indicated by the first indication information may be different, for example, the number of timeslots indicated by the first indication information is different from the number of timeslots indicated by the second format, and the number of timeslots indicated by the first indication information is different from the number of timeslots indicated by the third format; in the fourth format, the first indication information only indicates the transmission structure corresponding to 2 slots. For different formats, the number of time units for sending data and the number of time units for receiving data by the access network equipment indicated by the first indication information are [ 31 ], [ 21 ], [12 ], [ 11 ], respectively, where the meanings of X and Y in [ X Y ] are the same as above.

By adopting the method of the embodiment of the application, when the data transmission between the access network device and the terminal device uses the first system parameter, the number of the downlink time slots indicated by the first indication information is at least larger than 4, or the number of the uplink time slots indicated by the first indication information is at least larger than 2, or the total number of the time slots used for the downlink data transmission and the uplink data transmission indicated by the first indication information is larger than 4. For example, in this case, the content of the first indication information, e.g., SFI indication, may be as shown in table 6, and the symbol in table 6 is as defined in table 4, which is not described in detail herein.

Based on table 6, for different formats, when the SCS used for data transmission between the access network device and the terminal device is 60kHz, the number of slots for transmitting data and the number of slots for receiving data by the access network device, which are indicated by the first indication information, are [ 124 ], [ 86 ], [ 48 ], [ 49 ], respectively. Based on the above description, it can be observed that, when SCS is 15kHz, the number of downlink timeslots indicated by the first indication information may be {3,2,1}, the number of uplink timeslots indicated may be {1,2}, and the number of timeslots indicated may be {4,3,2}, which may respectively correspond to the second set. On the other hand, when the SCS is 60kHz, the number of downlink slots indicated by the first indication information may be {12,8,4}, the number of uplink slots indicated may be {4,6,8,9}, and the number of slots indicated may be {16,14,12,13}, and these may correspond to the first set, respectively. In this example, a part of the elements included in the first set may find an element proportional to the part of the elements in the second set, and a proportional relationship between the two elements is related to a proportional relationship between the first system parameter and the second system parameter, and taking the number of uplink timeslots indicated by the first indication information as an example, a ratio between the number of uplink timeslots corresponding to SCS 60kHz and the number of uplink timeslots corresponding to SCS 15kHz may be: 16/4, 12/3, taking the number of downlink timeslots indicated by the first indication information as an example, the ratio between the number of downlink timeslots corresponding to SCS 60kHz and the number of downlink timeslots corresponding to SCS 15kHz may be: 12/3,8/2,4/1.

Table 6 SCS 60kHz, the first indication information indicates the content example table

It should be noted that, in this embodiment of the application, a transmission structure corresponding to the first indication information may be configured by an RRC, and then dynamically indicate, by the first indication information, the number of time units (time slots) for sending and/or receiving data by the access network device, for example, the structure types corresponding totime slots 1 to 4 in table 3 may be configured by the RRC, and then the first indication information uses 2 bits to represent different transmission structures. For example, when the 2bit value is 00, the terminal device may determine, through the detected first indication information, that the transmission structures corresponding to thetime slots 1 to 4 are:

[ Downlink time slot downlink time slot ]

When the 2bit value is 11, the terminal device may determine, through the detected first indication information, that the transmission structure corresponding to thetime slot 1 to thetime slot 4 is:

[ Downlink time slot uplink time slot ]

Tables 4 to 6 are also similarly described, and are not described in detail herein.

Note that, in the embodiment of the present application, the non-indication means that the control information (first indication information) does not indicate the transmission structure of the corresponding slot. For example, in table 6, forformat 1, the first indication information indicates only the transport structures of S1-S14, and does not indicate the transport structures of S15 and S16.

As an optional implementation manner, no matter what system parameters are used for data transmission between the access network device and the terminal device, a set of transmission structures corresponding to the set of system parameters may be predefined by a standard or preconfigured by the access network device, and then the first indication information sent by the access network device may directly indicate the set of transmission structures corresponding to the set of system parameters. For example, the access network device pre-configures (e.g., through RRC signaling) a transmission structure corresponding to 15kHz (corresponding to the second system parameter), for example, as shown in table 3, the first indication information at least includes 2 bits, and may indicate the transmission structure included in table 3, and when the terminal device determines that the system parameter used for data transmission between the access network device and the terminal device is different from 15kHz, for example, when the SCS is 60kHz (corresponding to the first system parameter), the number of time units (slots) for transmitting and/or receiving data corresponding to the second system parameter may be determined according to the first indication information, the first system parameter, and the second system parameter. Still taking table 3 as an example, assuming that the first indication information includes 2-bit information and the indicated transmission structure is the third format, the terminal device determines, according to the first indication information, that the indicated transmission structure corresponds to the third format corresponding to 15kHz, and then determines, according to the first system parameter and the second system parameter, the transmission format corresponding to 60kHz in proportion, that is, the transmission structure corresponding to 8 downlink timeslots and 8 uplink timeslots in table 4.

As another alternative, no matter what system parameters are used for data transmission between the access network device and the terminal device, a set of transmission structures corresponding to the set of system parameters may be predefined by a standard or preconfigured by the access network device, and then the first indication information sent by the access network device may directly indicate the set of transmission structures corresponding to the set of system parameters. The terminal device may determine, according to the first indication information and the transmission structure corresponding to the set of parameters, a transmission duration corresponding to a time unit for the access network device to transmit and/or receive data when using other system parameters in data transmission between the access network device and the terminal device. Still taking table 3 as an example, assuming that the transmission structure indicated by the first indication information is in the second format, the terminal device determines, according to the received first indication information, that the transmission structure indicated by the first indication information is 3 downlink timeslots and 1 uplink timeslot, and then the terminal device may determine, according to the slot duration corresponding to 15kHz with SCS, that the data transmission length between the access network device and the terminal device may be 4ms, the transmission duration corresponding to the number of time units for downlink data transmission is 3ms, and the transmission duration corresponding to the number of time units for uplink data transmission is 1 ms.

In this embodiment of the present application, the first indication information is used to indicate the number of time units for the access network device to transmit and/or receive data within a preset time range, where for the unlicensed frequency band resource, as described above, when the access network device contends for the unlicensed frequency band resource, the time for determining the availability of the unlicensed frequency band resource without back through LBT is limited, for example, limited by MCOT. Therefore, on the unlicensed frequency band resource, in order to ensure the validity of the first indication information indication, the first indication information may indicate a transmission structure corresponding to a timeslot included in one MCOT, or may indicate the number of time units for the access network device to transmit and/or receive data, which are included in one MCOT. Of course, the time length indicated by the first indication information may also be greater than one MCOT, for example, the access network device may determine in advance that after one contention for resources (except one MCOT), the access network device has preconfigured downlink time units (time units for downlink data transmission) and/or uplink time units (time units for uplink data transmission).

It should be noted that, in this embodiment of the application, the first indication information is used to indicate the number of time units for the access network device to send and/or receive data within a preset time range, and it may be understood that a transmission duration corresponding to the number of time units indicated by the first indication information is within a transmission duration corresponding to the preset time range, or that the time units indicated by the first indication information are within the preset time range. The starting position of the preset time range may be uncertain. For example, in the unlicensed frequency band resource, taking the access network device as an example, the access network device needs to determine a starting position of an MCOT or a transmission opportunity (TxOP), according to a result of the CCA, where a transmission duration corresponding to the MCOT or TxOP is related to regulatory constraints and may be considered to be preset. Therefore, when the first indication information indicates the number of time units for the access network device to transmit and/or receive data within the preset time range, it can be understood that the indicated time units are within the preset time range, or the transmission duration corresponding to the indicated time units is within the transmission duration corresponding to the preset time range.

Optionally, the first indication information is further used for indicating a starting position of the number of time units; or, the terminal device receives second indication information sent by the access network device, where the second indication information is used to indicate the starting position of the time unit number. No matter what kind of SCS is included in the system parameters used for data transmission between the access network device and the terminal device, the indication information uses 1ms as a granularity unit to indicate the transmission duration, and the starting position of the time unit can be notified by using the time slot length corresponding to the currently used system parameter as a unit. In the following, the first indication information is taken as an example, and several optional implementation manners when the first indication information indicates the starting position of the number of time units are illustrated. It should be noted that the following description also applies to the second indication information.

It should be noted that, when the first indication information or the second indication information indicates the starting position of the number of time units, the time units corresponding to the indicated number of time units may be a plurality of time units which are consecutive in time and used for transmitting data or receiving data.

The starting position of the time unit number can be understood as the time position from which the time unit number of the access network device for transmitting data is measured. The starting position of the time unit number may be associated with a first time offset amount, for example, the starting position of the time unit number may be a starting boundary of a time unit corresponding to a time unit shifted backward by the first time offset amount. Alternatively, the first time offset may be indicated by the first indication information. Wherein the first time offset may include the following implementation:

(1) the starting position of the number of the time units may be the starting position of the time unit corresponding to the time unit in which the first indication information is located after the time unit is shifted backward by the first time offset. That is, the first time offset is a time offset between the time unit in which the first indication information is located and a corresponding first time unit in the number of time units indicated by the first indication information.

For example, as shown in fig. 12a and 12b, fig. 12a and 12b illustrate an example of the number of time units for receiving data for the access network device indicated by the first indication information. In fig. 12a, the first time offset corresponds to a specific value of 1 (representing 1 time unit or 1 time slot), and in fig. 12b, the first time offset corresponds to a specific value of 2 (representing 2 time units or 2 time slots).

(2) More generally, the first time offset is a time offset between the specific time unit and a corresponding first time unit in the number of time units indicated by the first indication information. The specific time unit here may have a certain preset relationship with a time unit in which the first indication information is located, for example, a time unit next to the time unit in which the first indication information is located, for example, as shown in fig. 13, the number of time units for receiving data for the access network device indicated by the first indication information is still used as an example in fig. 13.

For another example, if the first indication information indicates the number of time units for the access network device to receive data, the starting position of the number of time units may be measured based on the ending position of the downlink time unit for the access network device to transmit data, as shown in fig. 14. In fig. 14, the first time offset corresponds to a specific value of 1 (representing 1 time unit or 1 time slot).

In the method provided in this embodiment, a relationship between a starting position (for convenience of description, referred to as a starting position #1) of the number of time units indicated by the determined first indication information and a time unit (for convenience of description, referred to as a starting position #2) in which the control information is located, according to control information (for convenience of description, referred to as control information a) sent by an access network device, may have the following expression. It should be noted that the starting position here may be represented by a starting boundary of a first time unit in the number of time units indicated by the first indication information, and may also have other representation forms, which are not specifically limited; the control information may be the first indication information, or may be other indication information different from the first indication information, for example, the second indication information, or may have other presentation forms, and is not particularly limited. When the indication information indicating the starting position of the number of time units is different from the first indication information (for example, the second indication information), the first indication information and the second indication information may be carried in the same downlink control channel or different downlink control channels. The following specifically describes a possible relationship between thestart position #1 and the start position # 2.

(1) Thehome position #1 and the home position #2 are the same home position.

For example, when the first indication information indicates the number of time units for transmitting data for the access network device, the starting position of the number of time units may be the same as the starting position of the time unit including the control information a. For another example, when the first indication information indicates the number of time units for transmitting and receiving data for the access network device, the starting position of the number of time units may be the same as the starting position of the time unit including the control information a. As shown in fig. 15.

(2) There is a time offset between the startingposition #1 and the starting position #2, and thestarting position #1 is after the starting position #2, and the time offset can be represented by the number of time units.

For example, when the first indication information indicates the number of time units for transmitting data and receiving data, the number of time units for transmitting data, or the number of time units for receiving data for the access network device, the relationship between the startingposition #1 and the starting position #2 may be satisfied. As shown in fig. 16.

(3) Thestarting position #1 and the starting position #2 have a certain time offset, and thestarting position #1 is before the starting position #2, the time offset can also be represented by the number of time units.

In the embodiment of the present application, if the startingposition #1 and the starting position #2 are the same starting position, once the terminal device detects the control information a (e.g., the first indication information or the second indication information), the terminal device may determine the starting position of the number of time units indicated by the first indication information, that is, the starting boundary of the time unit including the control information a may be understood as the starting position of the number of time units indicated by the first indication information; if there is a certain time offset between the startingposition #1 and the starting position #2, the control information a may include information related to the time offset, for example, the control information a may indicate the time offset, based on which, upon detecting the control information a (e.g., the first indication information or the second indication information), the terminal device may include the time unit position of the control information a and the time offset indicated by the control information a, and determine the starting position of the time unit number indicated by the first indication information.

For example, when the first indication information indicates the number of time units for transmitting data for the access network device, or when the first indication information indicates the number of time units for transmitting data and receiving data for the access network device, the relationship between the startingposition #1 and the starting position #2 may be satisfied. As shown in fig. 17.

It should be noted that, in the embodiment of the present application, if there is a time offset between the startinglocation #1 and the starting location #2, the time offset may be represented by the number of time units, or may be represented by a transmission duration corresponding to the number of time units, or take other forms, which is not limited in particular.

It should be noted that, in this embodiment of the application, if the first indication information sent by the access network device indicates a sum of the numbers of time units for the access network device to send data and receive data, when the terminal device receives the first indication information, in addition to determining the sum of the numbers of time units for the access network device to send data and receive data, the terminal device may also determine the number of time units for the access network device to send data according to the first indication information, or determine the number of time units for the access network device to receive data according to the first indication information. For example, as described above, when the first indication information indicates a transmission structure corresponding to a timeslot, the terminal device may determine the content according to the first indication information. In particular, the terminal device may determine the starting position of the number of uplink time units according to the number of downlink time units indicated by the first indication information.

In this embodiment of the present application, after receiving control information a sent by an access network device and used for indicating a starting position of the number of time units, when determining the starting position, a terminal device may perform the following steps:

(1) if the terminal device determines that the first system parameter is used for data transmission between the terminal device and the access network device, the terminal device may determine the starting position according to the control information a and the first system parameter.

(2) If the terminal device determines that the second system parameter is used for data transmission between the terminal device and the access network device, the terminal device may determine the starting position according to the control information a and the second system parameter.

(3) No matter what type of system parameters are used for data transmission between the terminal device and the access network device, the terminal device may determine the starting position based on the control information a and reference system parameters (e.g., the second system parameters in the embodiments of the present application).

A specific indication manner for manners (1) and (2) can be shown in fig. 8, for example, where offset in fig. 8 can be understood as the content indicated by the control information a. In fig. 8, when the SCS is 15kHz, the number of slots corresponding to the offset indicated by the control information a (in this example, the first indication information) is 1, the corresponding transmission duration is 1ms, and the number of uplink slots indicated by the first indication information is 3, the terminal device may determine the starting position of the number of uplink slots indicated by the first indication information, which starts after 1 slot (or 1ms) after the detected first indication information; similarly, when the SCS is equal to 30kHz, the offset indicated by the control information a (in this case, the first indication information) corresponds to 1 slot number, the corresponding transmission duration is 0.5ms, and the number of uplink slots indicated by the first indication information is 6, the terminal device may determine the starting position, which is the number of uplink slots indicated by the first indication information and starts 1 slot (or 0.5ms) after the detected first indication information; when the SCS is 60kHz, the number of slots corresponding to the offset indicated by the control information a (in this example, the first indication information) is 1, the corresponding transmission duration is 0.25ms, and the number of uplink slots indicated by the first indication information is 12, the terminal device may determine the starting position of the number of uplink slots indicated by the first indication information, which starts after 1 slot (or 1ms) after the detected first indication information. The benefits of this are: the starting position of the time unit for sending and/or receiving data is related to the system parameter corresponding to the actual data transmission, when the subcarrier interval adopted for data transmission between the access network device and the terminal device is larger, the time slot transmission duration corresponding to the smaller subcarrier interval adopted for data transmission between the access network device and the terminal device is shorter, so for the same control information A, when the subcarrier interval adopted for data transmission between the access network device and the terminal device is larger, the terminal device can identify the starting position of the time unit more flexibly.

As for the specific indication manner of the manner (3), as shown in fig. 9, no matter what type of system parameters are used for data transmission between the terminal device and the access network device, the terminal device understands the start position of the time unit according to the time slot transmission duration corresponding toSCS 15 kHz. For example, when the SCS is 15kHz, SCS is 30kHz, and SCS is 60kHz, the transmission time length corresponding to the indication information (e.g., offset) associated with the start position in the control information a is 1 ms. Alternatively, in the case that the SCS corresponds to different values, the offsets adjacent to the start position in the control information a may all correspond to the same value, for example, all of them are 1, and the terminal device may interpret a specific value corresponding to 1 according to the transmission duration of the slot corresponding to 15kHz, that is, 1 × 1ms is 1 ms. The benefits of this are: when the data transmission between the access network device and the terminal device adopts a larger subcarrier interval, because the indication information associated with the starting position is understood according to the time slot transmission duration corresponding to the smaller subcarrier interval, the time offset that can be indicated is larger under the same control information a bit overhead condition when the data transmission between the access network device and the terminal device adopts the larger subcarrier interval. The time offset here is a time offset between the start position of the time unit number indicated by the first indication information and the start position of the control information a.

As a special implementation manner, the terminal device may determine, according to the first indication information, a data transmission duration for the access network device to receive the data and a starting position of the data transmission duration. In this case, no matter what system parameters are used for data transmission between the access network device and the terminal device, the terminal device may determine the starting position of the data transmission duration according to the corresponding timeslot transmission duration under the specific system parameters. For example, if the specific system parameter SCS is 15kHz, the corresponding slot transmission duration is 1ms, and the specific representation of the control information a associated with the start position of the data transmission duration is assumed to be U, the terminal device may determine the start position of the data transmission duration according to U × 1 ms.

In the embodiment of the present application, the time offset (for example, the first time offset amount, the offset, and the like) associated with the start position of the number of time units may be indicated by the control information (the first indication information or the second indication information) or may be indicated implicitly, and is not particularly limited herein. When the display indication mode is adopted, the control information (the first indication information or the second indication information) comprises the displayed bit to indicate the offset; when the implicit indication mode is adopted, in one mode, when the first indication information (or control information) indicates a transmission structure corresponding to a timeslot, for example, the content indicated by the first indication information is:

[ Downlink time slot downlink time slot uplink time slot ]

The terminal device may determine that, if the first downlink timeslot indicated by the first indication information is used as a reference point, the offset between the start position of the number of uplink timeslots used by the access network device to receive data and the reference point may be 2 timeslots. The implicit indication may have other indication forms, and is not particularly limited.

In the method provided in the embodiment of the present application, the first indication information for indicating the number of time units for sending and/or receiving data by the access network device may be physical layer common control information, and is carried in a downlink common control channel. For example, the first indication information is implemented by cell common (cell common) RNTI scrambling, because the physical layer common control information is valid for a plurality of terminal devices, the first indication information is implemented by using the common control information, and the control signaling overhead can be saved.

It should be noted that, in the embodiment of the present application, the system parameters used for data transmission between the terminal device and the access network device may vary according to different data transmission types. For example, the system parameters corresponding to the control data transmission between the terminal device and the access network device are different from the system parameters corresponding to the service data transmission between the terminal device and the access network device. However, when the corresponding system parameters are different, in the embodiment of the present application, the first system parameter corresponding to the first set and the second system parameter corresponding to the second set are preferably the system parameters corresponding to the same data transmission type between the terminal device and the access network device. For example, the first system parameter and the second system parameter are both corresponding system parameters when service data transmission is performed between the terminal device and the access network device; or the first system parameter and the second system parameter are both corresponding system parameters when the terminal equipment and the access network equipment perform control data transmission. In the embodiment of the present application, the first system parameter and the second system parameter may have other expression forms, and are not particularly limited.

An embodiment of the present application further provides a transmission method of a data transmission format, as shown in fig. 11, similarly, the transmission method may be applied to a network architecture shown in fig. 1, an access network device in the method may be applied to the schematic structural diagram in fig. 2, and a terminal device may be applied to the schematic structural diagram in fig. 3. The method provided by the embodiment of the present application takes data transmission in an unlicensed frequency band as an example, but the method provided by the embodiment of the present application is not limited to the unlicensed frequency band, and the transmission method includes the following steps:

step 1101 is the same as step 401, and is not described herein again.

Step 1102, the access network device determines a starting position of the number of time units for transmitting and/or receiving data.

Step 1103, the access network device sends first indication information to the terminal device, where the first indication information is used to indicate a starting position of the number of time units for sending and/or receiving data by the access network device.

Step 1104, the terminal device receives the first indication information sent by the access network device.

Similarly, in the method provided in the embodiment of the present application, the numbers of steps 1101 and 1102 do not limit the order of precedence, that is, step 1101 may be executed before step 1102, or may be executed after step 1102. Likewise, step 1101 may be performed before step 1104, or may be performed after step 1104.

Step 1105, the terminal device determines the starting position of the number of the time units according to the first indication information.

The method for determining the starting position of the number of time units is the same as that of the previous embodiment, and is not described again. When the terminal device determines that the terminal device and the access network device use the first system parameter when performing data transmission, the terminal device determines the starting position of the time unit according to the second indication information and the first system parameter; or, when the terminal device determines that the terminal device and the access network device use the second system parameter for data transmission, the terminal device determines the starting position of the time unit according to the second indication information and the second system parameter.

Optionally, the first indication information is further used to indicate the number of time units for sending and/or receiving data by the access network device, and may be carried in a downlink common control channel.

Similar to the foregoing embodiment, in the transmission method provided in the embodiment of the present application, when the terminal device and the access network device use the first system parameter for data transmission, the number of time units is an element included in the first set; or, when the terminal device and the access network device use the second system parameter for data transmission, the number of the time units is an element included in the second set. The first set corresponds to the first system parameter, the second set corresponds to the second system parameter, the first set includes at least one value M, the value M is greater than N, the value N is the maximum value in the second set, and the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter. This part of the disclosure is similar to the foregoing embodiment and will not be described again.

By the method provided by the embodiment of the application, it can be known that, no matter what system parameters are used for data transmission between the access network device and the terminal device, the access network device can use the first indication information to indicate the number of time units for sending and/or receiving data, which simplifies the indication method of the data transmission format (such as SFI). Secondly, when the subcarrier interval corresponding to the second system parameter is smaller than the subcarrier interval corresponding to the first system parameter, the time unit number value included in the first set corresponding to the first system parameter and the time unit number value included in the second set corresponding to the second system parameter satisfy the following relationship: the first set includes at least one value of M, where M is greater than N, and N is the maximum value in the second set.

By the method provided by the embodiment of the application, no matter what system parameters are used for data transmission between the access network equipment and the terminal equipment, the data transmission durations corresponding to the multiple time units indicated by the first indication information can reach a result close to each other under the condition of different system parameters, and the method is particularly suitable for indicating the data transmission format on the unlicensed frequency band resource. For example, when the first system parameter SCS used when the terminal device and the access network device perform data transmission is determined to be 60kHz, then the maximum length that the first indication information can indicate is 2^LX 0.25ms (with the continuation of the meaning of the parameters in the previous examples). By adopting the method provided by the embodiment of the application, the maximum transmission time length which can be indicated by the first indication information is 2^LX 1ms, the transmission duration being greater than the maximum value 2 in the second set corresponding to the second system parameter^LX 0.25 ms. Since, on the unlicensed frequency band resource, due to being limited by regional regulatory constraints, once the access network device competes for the unlicensed frequency band resource, the transmission time for transmitting and/or receiving data is limited without re-evaluating the availability of the unlicensed frequency band resource. The transmission duration is independent of which system parameter is adopted for data transmission, for example, the transmission duration may be represented by MCOT, that is, the first indication information indicates the number of time units for the access network device to send and/or receive data in the MCOT, where MCOT is not greater than the duration of single data transmission limited by regulations on the unlicensed frequency band resource. For convenience of description, in the embodiment of the present application, the limited transmission time duration is expressed by using MCOT, but it should be noted that the limited transmission time duration may have other expressions. Therefore, practice of the present applicationIn the method provided by the embodiment, the indication of the data transmission format can also realize that no matter what system parameters are adopted, the data transmission duration corresponding to the indicated time unit is comparable, so that the design of the data transmission format indication method on the unlicensed frequency band resource is simplified.

In summary, according to the embodiments of the present application, when data transmission between the access network device and the terminal device uses different system parameters, the transmission durations corresponding to a plurality of time units that are comparable or the same may be indicated, thereby achieving effective data transmission format indication and simplifying the design method of data transmission format indication. In addition, when the data transmission structure is indicated by using the embodiment on the unlicensed frequency band, the following effects can be achieved:

(1) the terminal device can not execute downlink detection in the non-scheduled uplink data transmission time period, thereby achieving the power saving (power saving) effect.

(2) In the correct downlink data period, the terminal device may average Channel State Information (CSI) measured based on the downlink reference signal.

(3) The terminal equipment is convenient to determine the type of Listen Before Talk (LBT). In general, there are two ways for LBT, one is a listening mechanism with random back-off, and the other is a listening mechanism without random back-off, i.e. a one shot listening mechanism. Generally, in an MCOT, a device may employ a one shot listening mechanism, that is, assuming that an access network device competes for a usage right of an unlicensed frequency band through an LBT, in the MCOT after the access network device competes for resources, a terminal device may employ the one shot listening mechanism to determine whether the access network device can continue to use the unlicensed frequency band resources that the access network device competes for. After the access network device competes for the unlicensed frequency band resource, the access network device notifies the terminal device of the frame structure through the indication information, and may only notify the frame structure included in the MCOT, and if the terminal device is scheduled within the uplink data transmission time range indicated by the indication information, the terminal device may determine to use a one shot listening mechanism before transmitting data.

The present examples also provide an apparatus (e.g., an integrated circuit, a wireless device, a circuit module, etc.) for implementing the above-described method. An apparatus implementing the power tracker and/or the power supply generator described herein may be a standalone device or may be part of a larger device. The device may be (i) a free-standing IC; (ii) a set of one or more 1C, which may include a memory IC for storing data and/or instructions; (iii) RFICs, such as RF receivers or RF transmitter/receivers; (iv) an ASIC, such as a mobile station modem; (v) a module that may be embedded within other devices; (vi) a receiver, cellular telephone, wireless device, handset, or mobile unit; (vii) others, and so forth.

The method and the device provided by the embodiment of the application can be applied to terminal equipment or access network equipment (which can be collectively referred to as wireless equipment). The end device or access network device or wireless device may include a hardware layer, an operating system layer that runs above the hardware layer, and an application layer that runs above the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. In the embodiment of the present application, the specific structure of the execution subject of the method is not limited in the embodiment of the present application, as long as the communication can be performed by the method for transmitting a signal according to the embodiment of the present application by running a program in which codes of the method of the embodiment of the present application are recorded, for example, the execution subject of the method of the embodiment of the present application may be a terminal device or an access network device, or a functional module capable of calling the program and executing the program in the terminal device or the access network device.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

Moreover, various aspects or features of embodiments of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply an order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not limit the implementation processes of the embodiments of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application, which essentially or partly contribute to the prior art, may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or an access network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only a specific implementation of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the embodiments of the present application.

Claims

Translated fromChinese

1.一种数据传输格式的传输方法，其特征在于，包括：1. the transmission method of a data transmission format, is characterized in that, comprises:

终端设备确定所述终端设备和接入网设备进行数据传输时使用的第一系统参数或第二系统参数；The terminal device determines the first system parameter or the second system parameter used when the terminal device and the access network device perform data transmission;

所述终端设备接收所述接入网设备发送的第一指示信息，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数；receiving, by the terminal device, first indication information sent by the access network device, where the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data;

所述终端设备根据所述第一指示信息，确定所述时间单元个数；The terminal device determines the number of time units according to the first indication information;

其中，当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述时间单元个数为第一集合中包括的元素；或者，当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述时间单元个数为第二集合中包括的元素；Wherein, when the terminal device determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the number of time units is an element included in the first set; or , when the terminal device determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the number of time units is an element included in the second set;

其中，所述第一集合与所述第一系统参数相对应，所述第二集合与所述第二系统参数相对应；所述第一集合中包括至少一个M值，所述M大于N，所述N为所述第二集合中的最大值，且所述第二系统参数对应的子载波间隔小于所述第一系统参数对应的子载波间隔。The first set corresponds to the first system parameter, and the second set corresponds to the second system parameter; the first set includes at least one M value, and the M is greater than N, The N is the maximum value in the second set, and the subcarrier spacing corresponding to the second system parameter is smaller than the subcarrier spacing corresponding to the first system parameter.

2.根据权利要求1所述的方法，其特征在于，2. The method according to claim 1, wherein

所述第一集合包括集合{a₁,a₂，…，a_w}，所述第二集合包括集合{b₁,b₂,…,b_w}，

的值为K的整数倍，其中，a_i、b_i、w为正整数，i为大于0且小于等于w的自然数；The first set includes sets {a₁ , a₂ , ..., a_w }, the second set includes sets {b₁ , b₂ , ..., b_w },

The value of is an integer multiple of K, where a_i , b_i , and w are positive integers, and i is a natural number greater than 0 and less than or equal to w;或者，所述第一集合中的至少一个数值与所述第二集合中的至少一个数值之间的比值为K的整数倍；Or, the ratio between at least one value in the first set and at least one value in the second set is an integer multiple of K;

其中，K为所述第一系统参数对应的子载波间隔与所述第二系统参数对应的子载波间隔之间的比值。Wherein, K is the ratio between the subcarrier spacing corresponding to the first system parameter and the subcarrier spacing corresponding to the second system parameter.

3.根据权利要求1所述的方法，其特征在于，3. The method according to claim 1, wherein

当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，When the terminal device determines that the first system parameter is used when the terminal device and the access network device perform data transmission,

所述终端设备根据所述第一指示信息、所述第一系统参数以及所述第二系统参数确定所述时间单元个数；The terminal device determines the number of time units according to the first indication information, the first system parameter and the second system parameter;

或者，所述终端设备根据所述第一指示信息和所述第二系统参数确定所述时间单元个数对应的传输时长。Alternatively, the terminal device determines the transmission duration corresponding to the number of time units according to the first indication information and the second system parameter.

4.根据权利要求1-3中任一项所述的方法，其特征在于，4. The method according to any one of claims 1-3, characterized in that,

所述第一指示信息还用于指示所述时间单元个数的起始位置；The first indication information is also used to indicate the starting position of the number of time units;

当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述终端设备根据所述第一指示信息和所述第一系统参数，或者，根据所述第一指示信息和所述第二系统参数，确定所述时间单元个数的起始位置；When the terminal device determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the terminal device uses the first indication information and the first system parameter according to the first system parameter. , or, according to the first indication information and the second system parameter, determine the starting position of the number of time units;

或者，当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述终端设备根据所述第一指示信息和所述第二系统参数确定所述时间单元个数的起始位置。Or, when the terminal device determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the terminal device may use the second system parameter according to the first indication information and the second The system parameter determines the starting position of the number of time units.

5.根据权利要求1-3中任一项所述的方法，其特征在于，5. The method according to any one of claims 1-3, characterized in that,

所述终端设备接收所述接入网设备发送的第二指示信息，所述第二指示信息用于指示所述时间单元个数的起始位置；receiving, by the terminal device, second indication information sent by the access network device, where the second indication information is used to indicate a starting position of the number of time units;

当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述终端设备根据所述第二指示信息和所述第一系统参数，或者，根据所述第一指示信息和所述第二系统参数，确定所述时间单元个数的起始位置；When the terminal device determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the terminal device uses the second indication information and the first system parameter according to the , or, according to the first indication information and the second system parameter, determine the starting position of the number of time units;

或者，当所述终端设备确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述终端设备根据所述第二指示信息和所述第二系统参数，确定所述时间单元的起始位置。Or, when the terminal device determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the terminal device can use the second system parameter according to the second indication information and the second A system parameter that determines the starting position of the time unit.

6.根据权利要求5所述的方法，其特征在于，所述第一指示信息和所述第二指示信息承载在相同的下行控制信道中。6. The method according to claim 5, wherein the first indication information and the second indication information are carried in the same downlink control channel.

7.根据权利要求1-3中任一项所述的方法，其特征在于，所述第一指示信息承载在下行公共控制信道中。7. The method according to any one of claims 1-3, wherein the first indication information is carried in a downlink common control channel.

8.根据权利要求1-3中任一项所述的方法，其特征在于，所述第一系统参数包括子载波间隔SCS和/或时间单元持续时间；所述第二系统参数包括子载波间隔SCS和/或时间单元持续时间。8. The method according to any one of claims 1-3, wherein the first system parameter comprises subcarrier spacing SCS and/or time unit duration; the second system parameter comprises subcarrier spacing SCS and/or time unit duration.

9.根据权利要求1-3中任一项所述的方法，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数，包括：9. The method according to any one of claims 1-3, wherein the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data, comprising:

所述第一指示信息用于指示所述接入网设备在预设时间范围内发送和/或接收数据的时间单元个数，其中所述预设时间范围对应的持续时间不大于免许可频段资源上受限于法规约束的单次数据传输时长。The first indication information is used to indicate the number of time units in which the access network device sends and/or receives data within a preset time range, wherein the duration corresponding to the preset time range is not greater than the license-exempt frequency band resource The length of a single data transfer is limited by regulations.

10.一种数据传输格式的传输方法，其特征在于，所述方法包括：10. A transmission method for a data transmission format, wherein the method comprises:

接入网设备确定发送和/或接收数据的时间单元个数；The access network equipment determines the number of time units for sending and/or receiving data;

所述接入网设备向终端设备发送第一指示信息，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数；The access network device sends first indication information to the terminal device, where the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data;

其中，当所述终端设备和所述接入网设备进行数据传输时使用的为第一系统参数时，所述时间单元个数为第一集合中包括的元素；或者，当所述终端设备和所述接入网设备进行数据传输时使用的为第二系统参数时，所述时间单元个数为第二集合中包括的元素；Wherein, when the first system parameter is used when the terminal device and the access network device perform data transmission, the number of time units is an element included in the first set; or, when the terminal device and the access network device use the first system parameter When the access network device uses the second system parameter for data transmission, the number of time units is an element included in the second set;

11.根据权利要求10所述的方法，其特征在于，11. The method of claim 10, wherein:

The value of is an integer multiple of K, where a_i , b_i , and w are positive integers, and i is a natural number greater than 0 and less than or equal to w;

或者，所述第一集合中的至少一个数值与所述第二集合中的至少一个数值之间的比值为K的整数倍；Or, the ratio between at least one value in the first set and at least one value in the second set is an integer multiple of K;

12.根据权利要求10或11所述的方法，其特征在于，所述第一指示信息还用于指示所述时间单元个数的起始位置。The method according to claim 10 or 11, wherein the first indication information is further used to indicate a starting position of the number of time units.

13.根据权利要求10或11所述的方法，其特征在于，13. The method according to claim 10 or 11, characterized in that,

所述接入网设备向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述时间单元个数的起始位置。The access network device sends second indication information to the terminal device, where the second indication information is used to indicate a starting position of the number of time units.

14.根据权利要求13所述的方法，其特征在于，所述第一指示信息和所述第二指示信息承载在相同的下行控制信道中。The method according to claim 13, wherein the first indication information and the second indication information are carried in the same downlink control channel.

15.根据权利要求10或11所述的方法，其特征在于，所述第一指示信息承载在下行公共控制信道中。The method according to claim 10 or 11, wherein the first indication information is carried in a downlink common control channel.

16.根据权利要求10或11所述的方法，其特征在于，所述第一系统参数包括子载波间隔SCS和/或时间单元持续时间；所述第二系统参数包括子载波间隔SCS和/或时间单元持续时间。16. The method according to claim 10 or 11, wherein the first system parameter comprises subcarrier spacing SCS and/or time unit duration; the second system parameter comprises subcarrier spacing SCS and/or Time unit duration.

17.根据权利要求10或11所述的方法，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数，包括：17. The method according to claim 10 or 11, wherein the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data, comprising:

18.一种终端设备，其特征在于，包括：18. A terminal device, comprising:

处理单元，用于确定所述终端设备和接入网设备进行数据传输时使用的第一系统参数或第二系统参数；a processing unit, configured to determine the first system parameter or the second system parameter used when the terminal device and the access network device perform data transmission;

收发单元，用于接收所述接入网设备发送的第一指示信息，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数；a transceiver unit, configured to receive first indication information sent by the access network device, where the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data;

所述处理单元，还用于根据所述第一指示信息，确定所述时间单元个数；The processing unit is further configured to determine the number of the time units according to the first indication information;

其中，当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述时间单元个数为第一集合中包括的元素；或者，当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述时间单元个数为第二集合中包括的元素；Wherein, when the processing unit determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the number of time units is an element included in the first set; or , when the processing unit determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the number of time units is an element included in the second set;

19.根据权利要求18所述的终端设备，其特征在于，19. The terminal device according to claim 18, wherein,

20.根据权利要求18所述的终端设备，其特征在于，20. The terminal device according to claim 18, wherein,

当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，When the processing unit determines that the first system parameter is used when the terminal device and the access network device perform data transmission,

所述处理单元根据所述第一指示信息、所述第一系统参数以及所述第二系统参数确定所述时间单元个数；The processing unit determines the number of time units according to the first indication information, the first system parameter and the second system parameter;

或者，所述处理单元根据所述第一指示信息和所述第二系统参数确定所述时间单元个数对应的传输时长。Alternatively, the processing unit determines the transmission duration corresponding to the number of time units according to the first indication information and the second system parameter.

21.根据权利要求18-20中任一项所述的终端设备，其特征在于，21. The terminal device according to any one of claims 18-20, wherein,

当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述处理单元根据所述第一指示信息和所述第一系统参数，或者，根据所述第一指示信息和所述第二系统参数，确定所述时间单元个数的起始位置；When the processing unit determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the processing unit determines the first system parameter according to the first indication information and the first system parameter. , or, according to the first indication information and the second system parameter, determine the starting position of the number of time units;

或者，当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述处理单元根据所述第一指示信息和所述第二系统参数确定所述时间单元个数的起始位置。Or, when the processing unit determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the processing unit can perform the data transmission according to the first indication information and the second system parameter. The system parameter determines the starting position of the number of time units.

22.根据权利要求18-20中任一项所述的终端设备，其特征在于，22. The terminal device according to any one of claims 18-20, wherein,

所述收发单元接收所述接入网设备发送的第二指示信息，所述第二指示信息用于指示所述时间单元个数的起始位置；The transceiver unit receives second indication information sent by the access network device, where the second indication information is used to indicate the starting position of the number of time units;

当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第一系统参数时，所述处理单元根据所述第二指示信息和所述第一系统参数，或者，根据所述第一指示信息和所述第二系统参数，确定所述时间单元个数的起始位置；When the processing unit determines that the first system parameter is used when the terminal device and the access network device perform data transmission, the processing unit determines according to the second indication information and the first system parameter , or, according to the first indication information and the second system parameter, determine the starting position of the number of time units;

或者，当所述处理单元确定所述终端设备和所述接入网设备进行数据传输时使用的为所述第二系统参数时，所述处理单元根据所述第二指示信息和所述第二系统参数，确定所述时间单元的起始位置。Alternatively, when the processing unit determines that the second system parameter is used when the terminal device and the access network device perform data transmission, the processing unit may use the second system parameter according to the second indication information and the second A system parameter that determines the starting position of the time unit.

23.根据权利要求22所述的终端设备，其特征在于，所述第一指示信息和所述第二指示信息承载在相同的下行控制信道中。23. The terminal device according to claim 22, wherein the first indication information and the second indication information are carried in the same downlink control channel.

24.根据权利要求18-20中任一项所述的终端设备，其特征在于，所述第一指示信息承载在下行公共控制信道中。24. The terminal device according to any one of claims 18-20, wherein the first indication information is carried in a downlink common control channel.

25.根据权利要求18-20中任一项所述的终端设备，其特征在于，所述第一系统参数包括子载波间隔SCS和/或时间单元持续时间；所述第二系统参数包括子载波间隔SCS和/或时间单元持续时间。25. The terminal device according to any one of claims 18-20, wherein the first system parameter comprises a subcarrier spacing SCS and/or a time unit duration; the second system parameter comprises a subcarrier Interval SCS and/or time unit duration.

26.根据权利要求18-20中任一项所述的终端设备，所述第一指示信息用于指示所述接入网设备发送和/或接收数据的时间单元个数，包括：26. The terminal device according to any one of claims 18-20, wherein the first indication information is used to indicate the number of time units in which the access network device sends and/or receives data, comprising:

27.一种接入网设备，其特征在于，包括：27. An access network device, comprising:

处理单元，用于确定收发单元发送和/或接收数据的时间单元个数；a processing unit for determining the number of time units in which the transceiver unit sends and/or receives data;

所述收发单元，还用于向终端设备发送第一指示信息，所述第一指示信息用于指示所述收发单元发送和/或接收数据的时间单元个数；The transceiver unit is further configured to send first indication information to the terminal device, where the first indication information is used to indicate the number of time units in which the transceiver unit sends and/or receives data;

其中，当所述终端设备和所述收发单元进行数据传输时使用的为第一系统参数时，所述时间单元个数为第一集合中包括的元素；或者，当所述终端设备和所述收发单元进行数据传输时使用的为第二系统参数时，所述时间单元个数为第二集合中包括的元素；Wherein, when the first system parameter is used when the terminal device and the transceiver unit perform data transmission, the number of time units is an element included in the first set; or, when the terminal device and the When the second system parameter is used by the transceiver unit for data transmission, the number of time units is an element included in the second set;

28.根据权利要求27所述的接入网设备，其特征在于，28. The access network device according to claim 27, wherein,

29.根据权利要求27或28所述的接入网设备，其特征在于，所述第一指示信息还用于指示所述时间单元个数的起始位置。29. The access network device according to claim 27 or 28, wherein the first indication information is further used to indicate a starting position of the number of time units.

30.根据权利要求27或28所述的接入网设备，其特征在于，30. The access network device according to claim 27 or 28, wherein,

所述收发单元向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述时间单元个数的起始位置。The transceiver unit sends second indication information to the terminal device, where the second indication information is used to indicate a starting position of the number of time units.

31.根据权利要求30所述的接入网设备，其特征在于，所述第一指示信息和所述第二指示信息承载在相同的下行控制信道中。31. The access network device according to claim 30, wherein the first indication information and the second indication information are carried in the same downlink control channel.

32.根据权利要求27或28所述的接入网设备，其特征在于，所述第一指示信息承载在下行公共控制信道中。32. The access network device according to claim 27 or 28, wherein the first indication information is carried in a downlink common control channel.

33.根据权利要求27或28所述的接入网设备，其特征在于，所述第一系统参数包括子载波间隔SCS和/或时间单元持续时间；所述第二系统参数包括子载波间隔SCS和/或时间单元持续时间。33. The access network device according to claim 27 or 28, wherein the first system parameter comprises subcarrier spacing SCS and/or time unit duration; the second system parameter comprises subcarrier spacing SCS and/or time unit duration.

34.根据权利要求27或28所述的接入网设备，所述第一指示信息用于指示所述收发单元发送和/或接收数据的时间单元个数，包括：34. The access network device according to claim 27 or 28, wherein the first indication information is used to indicate the number of time units in which the transceiver unit sends and/or receives data, comprising:

所述第一指示信息用于指示所述收发单元在预设时间范围内发送和/或接收数据的时间单元个数，其中所述预设时间范围对应的持续时间不大于免许可频段资源上受限于法规约束的单次数据传输时长。The first indication information is used to indicate the number of time units in which the transceiver unit sends and/or receives data within a preset time range, wherein the duration corresponding to the preset time range is not greater than the time limit on the license-exempt frequency band resources. Limited to the length of a single data transfer limited by regulations.

35.一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-17中任一项所述的方法。35. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1-17.