CN112997574B - Random access method, terminal equipment and network equipment - Google Patents
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本申请涉及通信领域，具体涉及一种随机接入的方法、终端设备和网络设备。The present application relates to the communication field, and in particular to a random access method, terminal equipment and network equipment.
背景技术Background technique
新无线(New Radio，NR)系统中支持免授权频谱上的数据传输，通信设备在免授权频谱上进行通信时，需要基于先听后说(Listen Before Talk，LBT)的原则，即，通信设备在免授权频谱的信道上进行信号发送前，需要先进行信道侦听(或称为信道检测)，只有当信道侦听结果为信道空闲时，通信设备才能进行信号发送；如果通信设备在免授权频谱的上进行信道侦听的结果为信道忙，则不能进行信号发送。The new radio (New Radio, NR) system supports data transmission on the unlicensed spectrum. When the communication device communicates on the unlicensed spectrum, it needs to be based on the principle of Listen Before Talk (LBT), that is, the communication device Before sending signals on the channel of the license-free spectrum, it is necessary to perform channel detection (or called channel detection). Only when the channel detection result is that the channel is idle, the communication device can transmit signals; If the result of channel sensing on the frequency spectrum is that the channel is busy, signal transmission cannot be performed.
基于NR的免授权频谱接入(NR-Based Access to Unlicensed Spectrum，NR-U)系统，当终端设备进行随机接入时，对随机接入的时延要求较高。因此，如何减少随机接入的时延是一项亟待解决的问题。In an NR-Based Access to Unlicensed Spectrum (NR-U) system, when a terminal device performs random access, it has a high requirement for random access delay. Therefore, how to reduce the time delay of random access is an urgent problem to be solved.
发明内容Contents of the invention
本申请实施例提供一种随机接入的方法、终端设备和网络设备，可以减少随机接入的时延。Embodiments of the present application provide a random access method, a terminal device, and a network device, which can reduce the time delay of random access.
第一方面，提供了一种随机接入的方法，所述方法包括：终端设备接收网络设备发送的随机接入响应RAR，所述RAR中包括用于在随机接入中传输消息3的多个传输机会；所述终端设备根据所述多个传输机会中的第一传输机会，对对所述第一传输机会之后的传输机会进行信道侦听，直到信道侦听成功。In a first aspect, a random access method is provided, the method includes: a terminal device receives a random access response RAR sent by a network device, and the RAR includes multiple A transmission opportunity: according to the first transmission opportunity among the multiple transmission opportunities, the terminal device performs channel detection on transmission opportunities subsequent to the first transmission opportunity until the channel detection succeeds.
第二方面，提供了一种随机接入的方法，所述方法包括：网络设备向终端设备发送随机接入响应RAR，所述RAR中包括用于所述终端设备在随机接入中传输消息3的多个传输机会；所述网络设备根据所述多个传输机会中的第一传输机会，确定用于接收所述消息3的目标传输机会。In a second aspect, a method for random access is provided, the method includes: a network device sends a random access response RAR to a terminal device, and the RAR includes a
第三方面，提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。In a third aspect, a terminal device is provided, configured to execute the method in the foregoing first aspect or various implementation manners thereof.
具体地，该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。Specifically, the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
第四方面，提供了一种网络设备，用于执行上述第二方面或其各实现方式中的方法。In a fourth aspect, a network device is provided, configured to execute the method in the foregoing second aspect or various implementation manners thereof.
具体地，该网络设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。Specifically, the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
第五方面，提供了一种终端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或其各实现方式中的方法。In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
第六方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面或其各实现方式中的方法。A sixth aspect provides a network device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
第七方面，提供了一种装置，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a seventh aspect, an apparatus is provided for implementing any one of the first aspect to the second aspect or the method in each implementation manner thereof.
具体地，该装置包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。Specifically, the device includes: a processor, configured to invoke and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
可选地，该装置为芯片。Optionally, the device is a chip.
第八方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
第九方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a ninth aspect, a computer program product is provided, including computer program instructions, the computer program instructions causing a computer to execute any one of the above first to second aspects or the method in each implementation manner thereof.
第十方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
上述技术方案，网络设备向终端设备发送的RAR中包括用于传输消息3的多个传输机会，避免了只有一个传输机会时由于信道侦听失败后而导致的终端设备没有可用的传输机会，需要回退到消息1以重新尝试随机接入的问题。进一步地，终端设备可以根据多个传输机会中的第一传输机会，针对第一传输机会之后的多个传输机会进行信道侦听，增加了信道侦听成功的概率，从而可以降低随机接入的时延。In the above technical solution, the RAR sent by the network device to the terminal device includes multiple transmission opportunities for transmitting the
附图说明Description of drawings
图1是根据本申请实施例的一种通信系统架构的示意性图。Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
图2是根据本申请实施例的一种四步随机接入方法的示意性流程图。Fig. 2 is a schematic flowchart of a four-step random access method according to an embodiment of the present application.
图3是根据本申请实施例的包括RAR的一种MAC PDU的示意性图。Fig. 3 is a schematic diagram of a MAC PDU including RAR according to an embodiment of the present application.
图4是根据本申请实施例的一种BI字头的示意性框图。Fig. 4 is a schematic block diagram of a BI header according to an embodiment of the present application.
图5是根据本申请实施例的一种RAPID字头的示意性框图。Fig. 5 is a schematic block diagram of a RAPID header according to an embodiment of the present application.
图6是根据本申请实施例的一种MAC RAR的示意性框图。Fig. 6 is a schematic block diagram of a MAC RAR according to an embodiment of the present application.
图7是根据本申请实施例的一种随机接入的方法的示意性流程图。Fig. 7 is a schematic flowchart of a random access method according to an embodiment of the present application.
图8-图10是根据本申请实施例的部分传输机会的示意性图。8-10 are schematic diagrams of some transmission opportunities according to an embodiment of the present application.
图11是根据本申请实施例的终端设备的示意性框图。Fig. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.
图12是根据本申请实施例的网络设备的示意性框图。Fig. 12 is a schematic block diagram of a network device according to an embodiment of the present application.
图13是根据本申请实施例的通信设备的示意性框图。Fig. 13 is a schematic block diagram of a communication device according to an embodiment of the present application.
图14是根据本申请实施例的装置的示意性框图。Fig. 14 is a schematic block diagram of an apparatus according to an embodiment of the present application.
图15是根据本申请实施例的通信系统的示意性框图。Fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application.
具体实施方式detailed description
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The following will describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
本申请实施例可以应用于各种通信系统，例如：全球移动通讯(Global System ofMobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、免授权频谱上的LTE(LTE-based access to unlicensedspectrum，LTE-U)系统、免授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。The embodiment of the present application can be applied to various communication systems, for example: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-A) system, new wireless ( New Radio, NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR- U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next generation communication system or other communication systems, etc.
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device toDevice，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(MachineType Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (D2D ) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (MachineType Communication, MTC), and vehicle-to-vehicle (Vehicle to Vehicle, V2V) communication, etc., the embodiments of the present application can also be applied to these communication systems.
可选地，本申请实施例中的通信系统可以应用于载波聚合(CarrierAggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (CarrierAggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) network deployment Scenes.
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(BaseTransceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(CloudRadio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。Exemplarily, a
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital SubscriberLine，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global PositioningSystem，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session InitiationProtocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。The
网络设备110可以为小区提供服务，终端设备120通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备110进行通信，该小区可以是网络设备110(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括例如城市小区(Metro cell)、微小区(Micro cell)、微微小区(Picocell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。The
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。Optionally, the
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。It should be understood that a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device. Taking the
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
在小区搜索过程之后，终端设备已经与小区取得了下行同步，因此终端设备可以接收下行数据。但终端设备只有与小区取得上行同步，才能进行上行传输。终端设备可以通过随机接入过程(Random Access Procedure)与小区建立连接并取得上行同步。随机接入过程通常可以由以下事件触发：After the cell search process, the terminal device has achieved downlink synchronization with the cell, so the terminal device can receive downlink data. However, the terminal device can perform uplink transmission only when it obtains uplink synchronization with the cell. A terminal device can establish a connection with a cell and obtain uplink synchronization through a random access procedure (Random Access Procedure). The random access process can usually be triggered by the following events:
(1)初始接入(Initial Access)。(1) Initial Access (Initial Access).
终端设备可以从无线资源控制(Radio Resource Control，RRC)空闲态(RRC_IDLE态)进入RRC连接态(RRC_CONNECTED)。A terminal device may enter an RRC connected state (RRC_CONNECTED) from a radio resource control (Radio Resource Control, RRC) idle state (RRC_IDLE state).
(2)RRC连接重建过程(RRC Connection Re-establishment procedure)。(2) RRC Connection Re-establishment procedure (RRC Connection Re-establishment procedure).
(3)切换(Handover)。(3) Handover (Handover).
此时，终端设备处于连接态，需要与新的小区建立上行同步。At this point, the terminal device is in a connected state and needs to establish uplink synchronization with the new cell.
(4)RRC连接态下，下行数据或上行数据到达时，上行处于“不同步”状态(DL or ULdata arrival during RRC_CONNECTED when UL synchronisation status is″non-synchronised″)。(4) In the RRC connection state, when the downlink data or uplink data arrives, the uplink is in the "non-synchronized" state (DL or ULdata arrival during RRC_CONNECTED when UL synchronization status is "non-synchronized").
(5)RRC连接态下，上行数据到达时，没有可用的物理上行控制信道(PhysicalUplink Control Channel，PUCCH)资源用于调度请求(Scheduling Request，SR)传输(ULdata arrival during RRC_CONNECTED when there are no PUCCH resources for SRavailable)。(5) In the RRC connected state, when uplink data arrives, there are no available physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources for scheduling request (Scheduling Request, SR) transmission (ULdata arrival during RRC_CONNECTED when there are no PUCCH resources for SR Available).
(6)SR失败(SR failure)。(6) SR failure (SR failure).
(7)RRC在同步配置时的请求(Request by RRC upon synchronousreconfiguration)。(7) Request by RRC upon synchronous reconfiguration (Request by RRC upon synchronous reconfiguration).
(8)终端设备从RRC非激活态过渡(Transition from RRC_INACTIVE)。(8) The terminal equipment transitions from the RRC inactive state (Transition from RRC_INACTIVE).
(9)在SCell添加时建立时间对齐(To establish time alignment at SCelladdition)。(9) To establish time alignment at SCell addition (To establish time alignment at SCell addition).
(10)终端设备请求其他系统信息(Other System Information，OSI)。(10) The terminal device requests other system information (Other System Information, OSI).
(11)终端设备需要进行波束(Beam)失败的恢复(Beam failure recovery)。(11) The terminal device needs to perform beam failure recovery (Beam failure recovery).
在NR系统中，可以支持两种随机接入方式：如图2所示的基于竞争的随机接入方式和基于非竞争的随机接入方式。下面将结合图2简单描述基于竞争的四步随机接入过程：In the NR system, two random access methods can be supported: a contention-based random access method and a non-contention-based random access method as shown in FIG. 2 . The contention-based four-step random access process will be briefly described below in conjunction with Figure 2:
步骤1，终端设备向网络设备发送随机接入前导码(Preamble，也即messagel，Msgl)。
其中，随机接入前导码也可以称为前导码、随机接入前导码序列、前导码序列等。Wherein, the random access preamble may also be referred to as a preamble, a random access preamble sequence, a preamble sequence, and the like.
具体而言，终端设备可以选择物理随机接入信道(Physical Random AccessChannel，PRACH)资源，PRACH资源可以包括时域资源、频域资源和码域资源。接下来，终端设备可以在选择的PRACH资源上发送选择的Preamble。网络设备可以根据Preamble估计其与终端设备之间的传输时延并以此校准上行定时(timing)，以及可以大体确定终端设备传输消息3(Msg3)所需要的资源大小。Specifically, the terminal device may select physical random access channel (Physical Random Access Channel, PRACH) resources, and the PRACH resources may include time domain resources, frequency domain resources, and code domain resources. Next, the terminal device can send the selected Preamble on the selected PRACH resource. The network device can estimate the transmission delay between itself and the terminal device according to the Preamble, and use this to calibrate the uplink timing (timing), and can generally determine the resource size required by the terminal device to transmit the message 3 (Msg3).
步骤2，网络设备向终端设备发送随机接入响应(Random Access Response，RAR，也即message2，Msg2)
终端设备向网络设备发送Preamble后，可以开启一个RAR窗口，在该RAR窗口内根据随机访问无线网络临时标识符(Random Access Radio Network TemporaryIdentifier，RA-RNTI)检测对应的物理下行控制信道(Physical Downlink ControlChannel，PDCCH)。若终端设备检测到RA-RNTI加扰的PDCCH后，可以获得该PDCCH调度的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。其中，该PDSCH中包括Preamble对应的RAR。After the terminal device sends the Preamble to the network device, it can open a RAR window, and in the RAR window, detect the corresponding Physical Downlink Control Channel (Physical Downlink ControlChannel) according to the random access radio network temporary identifier (Random Access Radio Network Temporary Identifier, RA-RNTI). , PDCCH). After detecting the PDCCH scrambled by the RA-RNTI, the terminal device can obtain a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the PDCCH. Wherein, the PDSCH includes the RAR corresponding to the Preamble.
如果在此RAR窗口内没有接收到网络设备回复的RAR，则终端设备可以认为此次随机接入过程失败。应理解，终端设备和网络设备都需要唯一地确定RA-RNTI的值，否则终端设备就无法解码RAR。If no RAR replied by the network device is received within the RAR window, the terminal device may consider that the random access process has failed. It should be understood that both the terminal device and the network device need to uniquely determine the value of RA-RNTI, otherwise the terminal device cannot decode the RAR.
可选地，本申请实施例中，RA-RNTI可以通过收发双方都明确的Preamble的时频位置来计算RA-RNTI的值。比如，与Preamble相关联的RA-RNTI可以通过公式(1)计算：Optionally, in this embodiment of the present application, the RA-RNTI can calculate the value of the RA-RNTI based on the time-frequency position of the Preamble that is specified by both the transmitting and receiving parties. For example, the RA-RNTI associated with the Preamble can be calculated by formula (1):
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id (1)RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id (1)
其中，s_id为PRACH资源的第一个正交频分复用(Orthogonal FrequencyDivision Multiplexing，OFDM)符号的索引(0≤s_id＜14)，t_id为一个系统帧中PRACH资源的第一个时隙的索引(0≤t_id＜80)，f_id为频域中PRACH资源的索引(0≤f_id＜8)，ul_carrier_id为用于传输Preamble的上行载波(0表示NUL载波，1表示SUL载波)。对于FDD而言，每个子帧只有一个PRACH资源，因此，f_id固定为0。Among them, s_id is the index of the first Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol (0≤s_id<14) of the PRACH resource, and t_id is the index of the first time slot of the PRACH resource in a system frame (0≤t_id<80), f_id is the index of the PRACH resource in the frequency domain (0≤f_id<8), and ul_carrier_id is the uplink carrier used to transmit the Preamble (0 means NUL carrier, 1 means SUL carrier). For FDD, there is only one PRACH resource per subframe, therefore, f_id is fixed at 0.
换句话说，由于终端设备发送的Preamble时频位置是确定的，网络设备在解码Preamble时，也获得了该Preamble的时频位置，进而可以知道RAR中需要使用的RA-RNTI。当终端设备成功地接收到一个RAR(使用确定的RA-RNTI来解码)，且该RAR中的随机访问序列标识符(Random Access Preamble Identifier，RAPID)与终端设备发送的Preamble index相同时，则可以认为成功接收了RAR，此时终端设备就可以停止检测RA-RNTI加扰的PDCCH了。In other words, since the time-frequency position of the Preamble sent by the terminal device is determined, the network device also obtains the time-frequency position of the Preamble when decoding the Preamble, and thus can know the RA-RNTI to be used in the RAR. When the terminal device successfully receives a RAR (decoded using the determined RA-RNTI), and the random access sequence identifier (Random Access Preamble Identifier, RAPID) in the RAR is the same as the Preamble index sent by the terminal device, you can Considering that the RAR has been received successfully, the terminal device can stop detecting the PDCCH scrambled by the RA-RNTI at this time.
RAR可以携带在媒体访问控制(Media Access Control，MAC)协议数据单元(Protocol Data Unit，PDU)内，下面结合图4从包括RAR的MAC PDU构成的角度来介绍RAR携带的信息。The RAR can be carried in a Media Access Control (Media Access Control, MAC) Protocol Data Unit (Protocol Data Unit, PDU). The information carried by the RAR will be introduced below in conjunction with FIG. 4 from the perspective of the composition of the MAC PDU including the RAR.
从图3中可以看到，一个MAC PDU可以包括一个或多个MAC子PDU(subPDU)以及可能存在的填充(padding)比特，一个MAC subPDU可以只有)回退指示(Backoff Indicator，BI)，或只有随机访问序列标识符(Random Access Preamble Identifier，RAPID)，或RAPID和MAC RAR。As can be seen from Figure 3, a MAC PDU may include one or more MAC sub-PDUs (subPDU) and possible padding (padding) bits, and a MAC subPDU may only have a Backoff Indicator (Backoff Indicator, BI), or Only Random Access Preamble Identifier (RAPID), or RAPID and MAC RAR.
从MAC PDU的结构可以看出，如果网络设备在同一PRACH资源上检测到来自多个终端设备的随机接入请求，则使用一个MAC PDU就可以对这些接入请求进行响应，每个随机接入请求(对应一个Preamble index)的响应对应一个RAR。换句话说，如果多个终端设备在同一PRACH资源(时频位置相同，使用同一RA-RNTI)发送Preamble，则对应的RAR复用在同一MAC PDU中。It can be seen from the structure of the MAC PDU that if a network device detects random access requests from multiple terminal devices on the same PRACH resource, it can respond to these access requests with one MAC PDU, and each random access The response of the request (corresponding to a Preamble index) corresponds to a RAR. In other words, if multiple terminal devices send Preamble on the same PRACH resource (same time-frequency position, using the same RA-RNTI), the corresponding RARs are multiplexed in the same MAC PDU.
即，使用相同PRACH资源发送Preamble(Preamble不一定相同)的所有终端设备都检测相同的RA-RNTI加扰的PDCCH，并接收相同的MAC PDU，但不同RAPID对应不同的RAR。That is, all terminal devices that use the same PRACH resource to send Preamble (the Preamble is not necessarily the same) detect the same RA-RNTI scrambled PDCCH and receive the same MAC PDU, but different RAPIDs correspond to different RARs.
由于MAC PDU只能使用一个RA-RNTI加扰，这也意味着使用不同PRACH资源(时频位置不同)发送的Preamble对应的RAR不能复用到同一个MAC PDU中。Since the MAC PDU can only be scrambled with one RA-RNTI, this also means that the RAR corresponding to the Preamble sent using different PRACH resources (different time-frequency positions) cannot be multiplexed into the same MAC PDU.
图4是本申请实施例的BI子头的示意性框图。如图4所示，BI子头可以包括一个扩展字段(E)、一个类型字段(T)、两个预留字段(R)以及BI值。Fig. 4 is a schematic block diagram of a BI sub-header according to an embodiment of the present application. As shown in FIG. 4 , the BI subheader may include an extension field (E), a type field (T), two reserved fields (R) and a BI value.
针对BI子头，该BI子头只出现一次，且位于MAC头(header)的第一个字头处。如果终端设备收到了一个BI子头，则会保存一个回退值，该值等于该字头中的BI对应的值；否则终端设备可以将Backoff值设为0。BI对应的值指定了终端设备重发Preamble前需要等待的时间范围。如果终端设备在RAR窗口内没有接收到RAR，或接收到的RAR中没有一个RAPID与自己选择的preamble index相符合，则可以认为此次RAR接收失败。此时终端设备需要等待一段时间后，再发起随机接入。等待的时间可以为在0至BI对应的值指定的等待时间区间内的任意一个随机值。For the BI subheader, the BI subheader only appears once, and is located at the first header of the MAC header (header). If the terminal device receives a BI subheader, it will save a backoff value, which is equal to the value corresponding to the BI in the header; otherwise, the terminal device can set the Backoff value to 0. The value corresponding to BI specifies the time range that the terminal device needs to wait before resending the Preamble. If the terminal device does not receive the RAR within the RAR window, or there is no RAPID in the received RAR that matches the preamble index selected by itself, it can be considered that the RAR reception failed this time. At this time, the terminal device needs to wait for a period of time before initiating random access. The waiting time can be any random value within the waiting time interval specified by the value corresponding to 0 to BI.
图5是本申请实施例的RAPID子头的示意性框图。Fig. 5 is a schematic block diagram of a RAPID sub-header according to an embodiment of the present application.
如图5所示，RAPID子头可以包括一个E、一个T以及RAPID值。其中，RAPID为网络设备响应接收到的Preamble index。如果终端设备发现该值与自己发送Preamble时使用的索引相同，则可以认为成功接收到对应的RAR。As shown in FIG. 5 , the RAPID subheader may include an E, a T and a RAPID value. Among them, RAPID is the Preamble index received by the network device in response. If the terminal device finds that the value is the same as the index used when it sends the Preamble, it can be considered that the corresponding RAR has been successfully received.
图6是本申请实施例的MAC RAR的示意性框图。如图6所示，MAC RAR可以包括：预留比特R(例如，1个比特)、时间对齐指令(Timing Advance Command，TAC)、上行授权(ULgrant)、以及临时的小区无线网络临时标识(Temporary Cell Radio Network TemporaryIdentifier，TC-RNTI)。Fig. 6 is a schematic block diagram of a MAC RAR according to an embodiment of the present application. As shown in FIG. 6, the MAC RAR may include: a reserved bit R (for example, 1 bit), a time alignment command (Timing Advance Command, TAC), an uplink grant (UL grant), and a temporary cell wireless network temporary identifier (Temporary Cell Radio Network Temporary Identifier, TC-RNTI).
其中，TAC可以用于指定终端设备上行同步所需要的时间调整量，可以占据12比特。UL grant可以用于调度Msg3的上行资源指示。TC-RNTI可以用于加扰Msg 4的PDCCH(初始接入)。Wherein, the TAC can be used to specify the time adjustment amount required for uplink synchronization of the terminal equipment, and can occupy 12 bits. The UL grant can be used to schedule the uplink resource indication of Msg3. TC-RNTI can be used to scramble the PDCCH of Msg 4 (initial access).
步骤3，终端设备发送Msg3。
终端设备在收到RAR消息后，判断该RAR是否为属于自己的RAR消息，例如终端设备可以利用前导码索引进行核对，在确定是属于自己的RAR消息后，可以在RRC层产生Msg3，并向网络设备发送Msg3，其中需要携带终端设备的标识信息等。After receiving the RAR message, the terminal device judges whether the RAR is its own RAR message. For example, the terminal device can use the preamble index to check. After determining that it is its own RAR message, it can generate Msg3 at the RRC layer and send it to The network device sends Msg3, which needs to carry identification information of the terminal device and the like.
其中，Msg3主要用于通知网络设备该随机接入的触发事件。针对不同的随机接入触发事件，终端设备在步骤3中发送的Msg3可以包括不同的内容。Wherein, Msg3 is mainly used to notify the network device of the random access trigger event. For different random access trigger events, the Msg3 sent by the terminal device in
例如，对于初始接入的场景，Msg3可以包括RRC层生成的RRC连接请求消息(RRCSetup Request)。此外，Msg3还可以携带例如终端设备的5G-服务临时移动用户标识(Serving-Temporary Mobile Subscriber Identity，S-TMSI)或随机数等。For example, for the initial access scenario, Msg3 may include an RRC connection request message (RRCSetup Request) generated by the RRC layer. In addition, Msg3 may also carry, for example, a 5G-Serving Temporary Mobile Subscriber Identity (Serving-Temporary Mobile Subscriber Identity, S-TMSI) or a random number of the terminal device.
又例如，对于RRC连接重建场景，Msg3可以包括RRC层生成的RRC连接重建请求消息(RRC Reestabilshment Request)。此外，Msg3还可以携带例如小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)等。For another example, for an RRC connection reestablishment scenario, Msg3 may include an RRC connection reestablishment request message (RRC Reestabilshment Request) generated by the RRC layer. In addition, Msg3 may also carry, for example, a cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI) and the like.
又例如，对于切换场景，Msg3可以包括RRC层生成的RRC切换确认消息(RRCHandover Confirm)，其携带终端设备的C-RNTI。此外，Msg3还可携带例如缓冲状态报告(Buffer Status Report，BSR)等信息。对于其它触发事件例如上/下行数据到达的场景，Msg3至少可以包括终端设备的C-RNTI。For another example, for the handover scenario, Msg3 may include an RRC handover confirmation message (RRCHandover Confirm) generated by the RRC layer, which carries the C-RNTI of the terminal device. In addition, Msg3 may also carry information such as a buffer status report (Buffer Status Report, BSR). For other trigger events such as the arrival of uplink/downlink data, Msg3 may at least include the C-RNTI of the terminal device.
步骤4，网络设备向终端设备发送冲突解决消息(contention resolution)，即Msg4。
Msg4中可以包括竞争解决消息以及为终端设备分配的上行传输资源。终端设备接收到网络设备发送的Msg4后，可以检测Msg4中是否包括终端设备发送的Msg3中的部分内容。若包括则表明终端设备随机接入过程成功，否则认为随机接入过程失败，终端设备需要再次从步骤1开始发起随机接入过程。Msg4 may include a contention resolution message and uplink transmission resources allocated for the terminal device. After receiving the Msg4 sent by the network device, the terminal device may detect whether Msg4 includes part of the content of Msg3 sent by the terminal device. If included, it indicates that the random access process of the terminal device is successful; otherwise, it is considered that the random access process fails, and the terminal device needs to start the random access process from
由于步骤3中的终端设备可以在Msg3中携带自己唯一的标识，从而网络设备在竞争解决机制中，会在Msg4中携带终端设备的唯一标识以指定竞争中胜出的终端设备。Since the terminal device in
基于NR的免授权频谱接入(NR-Based Access to Unlicensed Spectrum，NR-U)系统，终端设备在每次上行传输之前要进行信道侦听，以侦听信道是否空闲，只有当信道侦听成功后终端设备才可以进行数据传输。在终端设备进行随机接入时，若网络设备向终端设备发送的RAR中包括一个UL grant(即Msg3的传输机会)，这样在终端设备针对该Msg3的传输机会进行信道侦听时，若信道侦听失败，则终端设备可能回退到Msgl重新进行随机接入，这样可能增加随机接入的时延。In the NR-Based Access to Unlicensed Spectrum (NR-U) system based on NR, the terminal device needs to perform channel detection before each uplink transmission to detect whether the channel is idle. Only when the channel detection is successful After the terminal device can carry out data transmission. When the terminal device performs random access, if the RAR sent by the network device to the terminal device includes a UL grant (that is, the Msg3 transmission opportunity), then when the terminal device performs channel detection for the Msg3 transmission opportunity, if the channel detection If listening fails, the terminal device may fall back to Msgl to perform random access again, which may increase the delay of random access.
鉴于此，本申请实施例提供了一种随机接入的方法，可以减小终端设备进行随机接入的时延。In view of this, the embodiment of the present application provides a random access method, which can reduce the time delay for a terminal device to perform random access.
为了加深对本申请实施例的理解，下面对免授权频谱做简单介绍。In order to deepen the understanding of the embodiments of the present application, the following briefly introduces the license-free spectrum.
免授权频谱是国家和地区划分的可用于无线电设备通信的频谱，该频谱可以被认为是共享频谱，即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求，就可以使用该频谱，可以不向政府申请专有的频谱授权。为了让使用免授权频谱进行无线通信的各个通信系统在该频谱上能够友好共存，需要基于LBT的原则，即，通信设备在免授权频谱的信道上进行信号发送前，需要先进行信道侦听(或称为信道检测)，只有当信道侦听结果为信道空闲时，通信设备才能进行信号发送；如果通信设备在免授权频谱的上进行信道侦听的结果为信道忙，则不能进行信号发送。且为了保证公平性，在一次传输中，通信设备使用免授权频谱的信道进行信号传输的时长可以不超过最大信道占用时间(Maximum Channel Occupation Time，MCOT)。The unlicensed spectrum is the spectrum allocated by the country and region that can be used for radio equipment communication. This spectrum can be considered as a shared spectrum, that is, as long as the communication equipment in different communication systems meets the regulatory requirements set by the country or region on this spectrum, it can be used. Using this spectrum, it is not necessary to apply for exclusive spectrum authorization from the government. In order to allow various communication systems that use license-free spectrum for wireless communication to coexist friendly on this spectrum, it is necessary to be based on the principle of LBT, that is, before a communication device transmits a signal on a channel of the license-free spectrum, it needs to perform channel detection ( Or called channel detection), only when the channel detection result is that the channel is idle, the communication device can send signals; if the communication device performs channel detection on the license-free spectrum and the result is that the channel is busy, it cannot perform signal transmission. And in order to ensure fairness, in one transmission, the duration of signal transmission by the communication device using the channel of the license-free spectrum may not exceed the maximum channel occupation time (Maximum Channel Occupation Time, MCOT).
图7是根据本申请实施例的随机接入的方法300的示意性流程图。图7所述的方法可以由终端设备和网络设备执行，该终端设备例如可以为图1中所示的终端设备120，该网络设备例如可以为图1中所示的网络设备110。如图7所示，该方法300可以包括以下内容中的至少部分内容。Fig. 7 is a schematic flowchart of a
需要说明的是，方法300的技术方案可以应用于四步随机接入过程中，也可以应用于两步随机接入过程中，例如，由四步随机接入回退到两步随机接入过程中的场景。It should be noted that the technical solution of the
在310中，网络设备向终端设备发送RAR，其中，该RAR中包括用于在随机接入中传输消息3的多个传输机会。In 310, the network device sends a RAR to the terminal device, wherein the RAR includes multiple transmission opportunities for transmitting the
在本申请实施例中，传输消息3的传输机会也可以称为UL grant或者其他名称，本申请实施例对此不作具体限定。In the embodiment of the present application, the transmission opportunity for transmitting the
在320中，终端设备接收网络设备发送的RAR。In 320, the terminal device receives the RAR sent by the network device.
在330中，终端设备根据多个传输机会中的第一传输机会，针对第一传输机会之后的传输机会进行信道侦听，直到信道侦听成功。In 330, the terminal device performs channel sensing on transmission opportunities subsequent to the first transmission opportunity according to the first transmission opportunity among the multiple transmission opportunities until the channel sensing succeeds.
需要说明的是，上述内容提到的针对第一传输机会之后的传输机会可以包括第一传输机会。此外，第一传输机会之后的传输机会可以指在时域上的第一传输机会之后的传输机会，也可以指网络设备指定的第一传输机会之后的传输机会。It should be noted that, the transmission opportunities after the first transmission opportunity mentioned in the foregoing content may include the first transmission opportunity. In addition, the transmission opportunity after the first transmission opportunity may refer to the transmission opportunity after the first transmission opportunity in the time domain, or may refer to the transmission opportunity after the first transmission opportunity specified by the network device.
在340中，网络设备根据多个传输机会中的第一传输机会中，确定用于接收消息3的目标传输机会。In 340, the network device determines a target transmission opportunity for receiving the
终端设备在上行信道侦听成功后向网络设备发送Preamble，并开启RAR窗口监听Msg2。网络设备向终端设备发送Msg2且终端设备在RAR窗口内接收到Msg2后，若Msg2中指示了该终端设备的RAPID，以及指示了用于在随机接入中传输消息3的多个传输机会，则终端设备可以在多个传输机会中选择第一传输机会。After the terminal device successfully detects the uplink channel, it sends a Preamble to the network device, and opens the RAR window to monitor Msg2. After the network device sends Msg2 to the terminal device and the terminal device receives Msg2 in the RAR window, if Msg2 indicates the RAPID of the terminal device and indicates multiple transmission opportunities for transmitting
在一种实现方式中，终端设备可以将多个传输机会中的第s个传输机会确定为第一传输机会，s为正整数。例如，s＝1，即终端设备可以将多个传输机会中的第一个传输机会确定为第一传输机会。In an implementation manner, the terminal device may determine the s-th transmission opportunity among the multiple transmission opportunities as the first transmission opportunity, where s is a positive integer. For example, s=1, that is, the terminal device may determine the first transmission opportunity among the multiple transmission opportunities as the first transmission opportunity.
可选地，s可以是协议规定的或网络设备配置的。Optionally, s may be specified by the protocol or configured by the network device.
在该实现方式中，如果多个终端设备在相同的随机接入机会(Random AccessChannel Occasion，RO)上发送了相同的Preamble，则该多个终端设备在收到Msg2后可能同时在第一个传输机会之前做信道侦听。若该多个终端设备处于相近的位置，且信道侦听成功，则该多个终端设备可能选择同一个(例如，第一个信道侦听成功的)传输机会传输各自的Msg3，从而可能出现Msg3的竞争冲突，进而降低网络设备对Msg3正确解码的概率。In this implementation, if multiple terminal devices send the same Preamble on the same random access opportunity (Random Access Channel Occasion, RO), the multiple terminal devices may transmit Do channel listening before the opportunity. If the multiple terminal devices are in close positions and the channel detection is successful, then the multiple terminal devices may choose the same (for example, the first channel detection successful) transmission opportunity to transmit their respective Msg3, and Msg3 may appear contention conflicts, thereby reducing the probability that the network device correctly decodes Msg3.
在另一种实现方式中，终端设备可以在多个传输机会中，随机选择第一传输机会。In another implementation manner, the terminal device may randomly select a first transmission opportunity among multiple transmission opportunities.
上述技术方案，终端设备在多个传输机会中随机选择第一传输机会，这样，不同的终端设备可能选择的第一传输机会不同，从而可以降低多个终端设备在接收到同一个Msg2后同时选择到相同的Msg3资源的概率，进而可以降低Msg3的竞争冲突概率。In the above technical solution, the terminal device randomly selects the first transmission opportunity among the multiple transmission opportunities. In this way, different terminal devices may choose different first transmission opportunities, thereby reducing the number of multiple terminal devices simultaneously selecting The probability of finding the same Msg3 resource can reduce the probability of contention conflict of Msg3.
下面介绍终端设备随机选择第一传输机会的实现方式。The implementation manner in which the terminal device randomly selects the first transmission opportunity is introduced below.
实施例1，终端设备可以在该多个传输机会中，随机选择第一传输机会。In
实施例2，终端设备可以在多个传输机会中的部分传输机会(为了描述方便，称为第三传输机会)中，随机选择第一传输机会。In
此时，方法300还可以包括：终端设备确定多个传输机会中的第三传输机会。At this time, the
其中，在多个传输机会中，第三传输机会在时域上可以是连续的，也可以是不连续的。例如，Msg2中包括10个传输机会，依次为传输机会1、传输机会2......传输机会10，其中，传输机会1在时域上最早，传输机会10在时域上最晚，第三传输机会可以是传输机会1、传输机会2......传输机会5，或者，第三传输机会可以是传输机会2、传输机会4、传输机会5、传输机会7。Among the multiple transmission opportunities, the third transmission opportunities may be continuous or discontinuous in the time domain. For example, Msg2 includes 10 transmission opportunities, which are
在本申请实施例中，终端设备确定第三传输机会的方式可以有多种。示例性地，方式1，终端设备可以在多个传输机会中随机选择第三传输机会。In this embodiment of the present application, there may be multiple manners for the terminal device to determine the third transmission opportunity. Exemplarily, in
方式2，终端设备可以根据触发随机接入事件的优先级，确定第三传输机会。其中，触发随机接入事件的优先级也可以称为随机接入优先级。In
可选地，在随机接入优先级中，初始接入和RRC连接重建过程触发的随机接入可以具有较高的优先级，基于波束失败的恢复或SR触发的随机接入可以具有较低的优先级。Optionally, among random access priorities, initial access and random access triggered by the RRC connection re-establishment process may have a higher priority, and random access based on beam failure recovery or SR trigger may have a lower priority. priority.
或者可选地，在随机接入优先级中，初始接入和RRC连接重建过程触发的随机接入可以具有较低的优先级，基于波束失败的恢复或SR触发的随机接入可以具有较高的优先级。Or alternatively, among the random access priorities, the random access triggered by the initial access and the RRC connection reestablishment process may have a lower priority, and the random access triggered by beam failure recovery or SR may have a higher priority. priority.
可选地，若第一优先级高于第二优先级，则第一起点在时域上可以早于第二起点，其中，第一起点为终端设备根据第一优先级确定的第三传输机会的起点，第二起点为终端设备根据第二优先级确定的第三传输机会的起点。Optionally, if the first priority is higher than the second priority, the first starting point may be earlier than the second starting point in the time domain, where the first starting point is the third transmission opportunity determined by the terminal device according to the first priority The second starting point is the starting point of the third transmission opportunity determined by the terminal device according to the second priority.
例如，若第一终端设备和第二终端设备在相同的RO上发送了相同的Preamble，第一终端设备和第二终端设备接收到的Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10。若触发第一终端设备进行随机接入的事件为初始接入，触发第二终端设备进行随机接入的事件为波束失败的恢复，则第一终端设备确定的第三传输机会的起点可以为传输机会1，第二终端设备确定的第三传输机会的起点可以为传输机会6。For example, if the first terminal device and the second terminal device send the same Preamble on the same RO, the Msg2 received by the first terminal device and the second terminal device includes 10 transmission opportunities, which are sequentially transmitted in the
应理解，第三传输机会的起点早意味着终端设备选择到较早的第一传输机会的概率较大。针对随机接入优先级高的终端设备，可以选择较早的传输机会，这样一旦信道侦听成功可以降低随机接入的时延，选择较早的传输机会也意味着终端设备可以有更多的传输机会可以尝试信道侦听，因此可以增加随机接入概率。相反，对于随机接入优先级低的终端设备，终端设备选择较晚的传输机会将获得相应较长的传输机会时延和较少的传输机会。It should be understood that the early start of the third transmission opportunity means that the terminal device has a higher probability of selecting an earlier first transmission opportunity. For terminal devices with high random access priority, an earlier transmission opportunity can be selected, so that once the channel sensing is successful, the delay of random access can be reduced. Selecting an earlier transmission opportunity also means that the terminal device can have more Transmitting opportunities can attempt channel sensing, thus increasing the random access probability. On the contrary, for a terminal device with a low random access priority, the terminal device selects a later transmission opportunity to obtain a correspondingly longer transmission opportunity delay and fewer transmission opportunities.
可选地，随机接入优先级可以是协议规定，预设在终端设备上的，或者，也可以是网络设备配置的。Optionally, the random access priority may be stipulated by the protocol, preset on the terminal device, or configured by the network device.
若随机接入优先级是网络设备配置的，则方法300还可以包括：网络设备确定随机接入优先级，之后，网络设备可以向终端设备发送第三指示信息，第三指示信息用于指示随机接入优先级。可选地，第三指示信息可以承载于无线资源控制(Radio ResourceControl，RRC)信令中，或者，Msg2可以包括第三指示信息，或者，第三指示信息可以承载于广播消息中，即网络设备广播各种随机接入过程对应的优先级。If the random access priority is configured by the network device, the
终端设备在根据随机接入优先级确定第三传输机会的过程中，作为一种示例，若随机接入优先级大于或等于预设优先级，即随机接入优先级较高，比如，当前随机接入过程由初始接入触发，则第三传输机会可以为多个传输机会中的前N个传输机会。也就是说，终端设备可以在前N个传输机会中选择第一传输机会。N为正整数。In the process of the terminal device determining the third transmission opportunity according to the random access priority, as an example, if the random access priority is greater than or equal to the preset priority, that is, the random access priority is higher, for example, the current random access priority The access process is triggered by initial access, and the third transmission opportunity may be the first N transmission opportunities among the multiple transmission opportunities. That is to say, the terminal device can select the first transmission opportunity among the first N transmission opportunities. N is a positive integer.
其中，N可以是通过协议预设在终端设备上的，或者，N可以是网络设备配置的。若N是网络设备配置的，则方法300还可以包括：网络设备确定N，然后，网络设备向终端设备发送第一指示信息，第一指示信息用于指示N。Wherein, N may be preset on the terminal device through a protocol, or N may be configured by the network device. If N is configured by the network device, the
或者，令多个传输机会的数量为L，N/L可以是协议预设在终端设备上，或者，N/L可以是网络设备配置的。Or, let the number of multiple transmission opportunities be L, N/L may be preset in the terminal device by the protocol, or N/L may be configured by the network device.
比如，N/L为0.4，则当有10个传输机会时，终端设备可以在10个传输机会的前4个传输机会中选择第一传输机会。当有5个传输机会时，终端设备可以在5个传输机会的前2个传输机会中选择第一传输机会。For example, if N/L is 0.4, when there are 10 transmission opportunities, the terminal device may select the first transmission opportunity among the first 4 transmission opportunities of the 10 transmission opportunities. When there are 5 transmission opportunities, the terminal device may select the first transmission opportunity among the first 2 transmission opportunities of the 5 transmission opportunities.
作为另一种示例，若随机接入优先级小于预设优先级，即随机接入优先级较低，比如，当前随机接入过程由SR触发，则第三传输机会可以为多个传输机会中的后M个传输机会。也就是说，终端设备可以在后M个传输机会中选择第一传输机会。其中，M为正整数。As another example, if the random access priority is lower than the preset priority, that is, the random access priority is lower, for example, the current random access procedure is triggered by SR, then the third transmission opportunity may be one of the multiple transmission opportunities last M transmission opportunities of . That is to say, the terminal device can select the first transmission opportunity among the last M transmission opportunities. Wherein, M is a positive integer.
可选地，M可以是通过协议预设在终端设备上的，或者，M可以是网络设备配置的。若M是网络设备配置的，则方法300还可以包括：网络设备确定M，然后，网络设备向终端设备发送第二指示信息，第二指示信息用于指示M。Optionally, M may be preset on the terminal device through a protocol, or M may be configured by the network device. If M is configured by the network device, the
或者，令多个传输机会的数量为L，M/L可以是协议预设在终端设备上，或者，M/L可以是网络设备配置的。若M/L是网络设备配置的，则方法300还可以包括：网络设备确定M/L，然后，网络设备向终端设备发送第一指示信息，第一指示信息用于指示M/L。Alternatively, let the number of multiple transmission opportunities be L, M/L may be preset on the terminal device by a protocol, or M/L may be configured by the network device. If the M/L is configured by the network device, the
比如，M/L为0.4，则当有10个传输机会时，终端设备可以在10个传输机会的后4个传输机会中选择第一传输机会。当有5个传输机会时，终端设备可以在5个传输机会的后2个传输机会中选择第一传输机会。For example, if the M/L is 0.4, when there are 10 transmission opportunities, the terminal device may select the first transmission opportunity among the last 4 transmission opportunities of the 10 transmission opportunities. When there are 5 transmission opportunities, the terminal device may select the first transmission opportunity from the last 2 transmission opportunities of the 5 transmission opportunities.
应理解，在本申请实施例中，“第一”、“第二”和“第三”仅仅为了区分不同的对象，但并不对本申请实施例的范围构成限制。It should be understood that in the embodiment of the present application, "first", "second" and "third" are only used to distinguish different objects, but do not limit the scope of the embodiment of the present application.
可选地，前N个传输机会中的所有传输机会在时域上可以早于后M个传输机会中的所有传输机会。Optionally, all transmission opportunities in the first N transmission opportunities may be earlier than all transmission opportunities in the next M transmission opportunities in the time domain.
此时，前N个传输机会中的最后一个传输机会可以与后M个传输机会中的第一个传输机会在时域上相邻。比如，如图8所示，Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，前N个传输机会为传输机会1......传输机会5，后M个传输机会为传输机会6......传输机会10。At this time, the last transmission opportunity in the first N transmission opportunities may be adjacent to the first transmission opportunity in the next M transmission opportunities in the time domain. For example, as shown in Figure 8, Msg2 includes 10 transmission opportunities, which are sequentially
或者，前N个传输机会中的最后一个传输机会可以与后M个传输机会中的第一个传输机会在时域上不相邻。比如，如图9所示，Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，前N个传输机会为传输机会1......传输机会4，后M个传输机会为传输机会7......传输机会10。此时，传输机会5和传输机会6不会被选择为第一传输机会。Alternatively, the last transmission opportunity in the first N transmission opportunities may not be adjacent to the first transmission opportunity in the next M transmission opportunities in the time domain. For example, as shown in Figure 9, Msg2 includes 10 transmission opportunities, which are sequentially
可选地，前N个传输机会中的部分传输机会可以与后M个传输机会中的部分传输机会相同。Optionally, some transmission opportunities in the first N transmission opportunities may be the same as some transmission opportunities in the last M transmission opportunities.
比如，如图10所示，Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，前N个传输机会为传输机会1......传输机会5，后M个传输机会为传输机会4......传输机会10。可以看到，传输机会4和传输机会5既属于前N个传输机会，又属于后M个传输机会。For example, as shown in Figure 10, Msg2 includes 10 transmission opportunities, which are sequentially
可选地，N和M可以相同，也可以不同，本申请实施例对此不作具体限定。Optionally, N and M may be the same or different, which is not specifically limited in this embodiment of the present application.
方式3，终端设备可以根据承载的业务，选择第三传输机会。In
作为一种示例，终端设备可以根据承载的业务类型，选择第三传输机会。As an example, the terminal device may select the third transmission opportunity according to the type of service carried.
可选地，终端设备承载的业务可以包括但不限于：超可靠低时延通信(UltraReliable Low Latency Communication，URLLC)业务、增强型移动宽带(Enhanced MobileBroadband，eMBB)业务、工业物联网业务、垂直行业业务、长期演进语音承载(Voice overLong-Term Evolution，VoLTE)业务、车联网业务等。Optionally, the services carried by the terminal equipment may include, but are not limited to: ultra-reliable low-latency communication (UltraReliable Low Latency Communication, URLLC) services, enhanced mobile broadband (Enhanced MobileBroadband, eMBB) services, industrial Internet of Things services, vertical industry services, Voice over Long-Term Evolution (VoLTE) services, Internet of Vehicles services, etc.
示例性地，Msg2中包括的多个传输机会可以分为多个部分，终端设备承载的业务不同，第三传输机会可以属于不同的部分。例如，Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，传输机会1......传输机会3为第一部分，传输机会4......传输机会7为第二部分，传输机会8......传输机会10为第三部分。若终端设备承载的业务为URLLC业务，则第三传输机会可以是该10个传输机会中的第一部分，即传输机会1......传输机会3；若终端设备承载的业务为eMBB业务，则第三传输机会可以是该10个传输机会中的第二部分，即传输机会4......传输机会7。Exemplarily, the multiple transmission opportunities included in Msg2 may be divided into multiple parts, and the services carried by the terminal device are different, and the third transmission opportunities may belong to different parts. For example, Msg2 includes 10 transmission opportunities, which are sequentially
作为另一种示例，终端设备可以根据承载的业务数量，选择第三传输机会。As another example, the terminal device may select the third transmission opportunity according to the number of services carried.
可选地，若终端设备承载的业务数量大于或等于阈值，则终端设备可以在多个传输机会中的前N个传输机会中选择第三传输机会。Optionally, if the number of services carried by the terminal device is greater than or equal to the threshold, the terminal device may select a third transmission opportunity from the first N transmission opportunities among the multiple transmission opportunities.
可选地，若终端设备承载的业务数量小于阈值，则终端设备可以在多个传输机会中的后M个传输机会中选择第三传输机会。Optionally, if the number of services carried by the terminal device is less than the threshold, the terminal device may select a third transmission opportunity from the last M transmission opportunities among the multiple transmission opportunities.
方式4，第三传输机会可以固定为多个传输机会的前h个传输机会或后h个传输机会。
在方式4中，不区分随机接入优先级或终端设备承载的业务等，第三传输机会可以固定为多个传输机会的例如前h个传输机会或后h个传输机会或中间的h个传输机会等。In
终端设备确定第三传输机会后，可以在第三传输机会中随机选择第一传输机会。After determining the third transmission opportunity, the terminal device may randomly select the first transmission opportunity from the third transmission opportunity.
上述技术方案，终端设备从多个传输机会中选择第一传输机会，如此，可供终端设备选择的传输机会较多一些，进而可以降低消息3竞争冲突的概率。In the above technical solution, the terminal device selects the first transmission opportunity from multiple transmission opportunities. In this way, there are more transmission opportunities for the terminal device to choose from, thereby reducing the probability of
在终端设备选择出第一传输机会后，终端设备可以根据第一传输机会，对第一传输机会之后的传输机会进行信道侦听。After the terminal device selects the first transmission opportunity, the terminal device may perform channel sensing on transmission opportunities subsequent to the first transmission opportunity according to the first transmission opportunity.
可选地，终端设备可以以第一传输机会为起点，针对第一传输机会之后的传输机会进行信道侦听。Optionally, the terminal device may start from the first transmission opportunity, and perform channel sensing for transmission opportunities after the first transmission opportunity.
在终端设备以第一传输机会为起点，针对第一传输机会之后的传输机会进行信道侦听的过程中，在一种可能的实施例中，终端设备可以以第一传输机会为起点，依次针对第一传输机会之后的传输机会进行信道侦听。During the process of the terminal device starting from the first transmission opportunity and performing channel sensing on the transmission opportunities after the first transmission opportunity, in a possible embodiment, the terminal device may start from the first transmission opportunity and sequentially target Transmission opportunities subsequent to the first transmission opportunity perform channel sensing.
具体而言，终端设备可以先针对第一传输机会进行信道侦听，若信道侦听成功，则终端设备利用第一传输机会向网络设备发送Msg3。此时，第一传输机会即为目标传输机会。若信道侦听失败，则终端设备针对第一传输机会后面的第一个传输机会进行信道侦听，若侦听成功，则终端设备可以将第一传输机会后面的第一个传输机会确定为目标传输机会；若信道侦听失败，则终端设备可以针对第一传输机会后面的第二个传输机会进行信道侦听，以此类推，直到信道侦听成功。Specifically, the terminal device may first perform channel detection for the first transmission opportunity, and if the channel detection succeeds, the terminal device sends Msg3 to the network device by using the first transmission opportunity. At this point, the first transmission opportunity is the target transmission opportunity. If the channel detection fails, the terminal device performs channel detection on the first transmission opportunity following the first transmission opportunity, and if the detection succeeds, the terminal device can determine the first transmission opportunity following the first transmission opportunity as the target Transmission opportunity; if the channel detection fails, the terminal device can perform channel detection for the second transmission opportunity following the first transmission opportunity, and so on until the channel detection succeeds.
举例说明，终端设备接收到的Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，第一传输机会为传输机会4，则终端设备先针对传输机会4进行信道侦听，若信道侦听成功，则终端设备可以利用传输机会4向网络设备发送Msg3。若信道侦听失败，则接下来终端设备针对传输机会5进行信道侦听，若信道侦听成功，则终端设备可以利用传输机会5向网络设备发送Msg3。若信道侦听失败，则终端设备继续针对传输机会6......传输机会10进行信道侦听，直到信道侦听成功。For example, the Msg2 received by the terminal device includes 10 transmission opportunities, which are sequentially
在另一种可能的实施例中，终端设备可以以第一传输机会为起点，随机针对第一传输机会之后的传输机会进行信道侦听。In another possible embodiment, the terminal device may start from the first transmission opportunity, and randomly perform channel sensing on transmission opportunities after the first transmission opportunity.
作为一种示例，终端设备可以随机针对第一传输机会及第一传输机会之后所有的传输机会进行信道侦听。As an example, the terminal device may randomly perform channel sensing on the first transmission opportunity and all transmission opportunities after the first transmission opportunity.
作为另一种示例，终端设备可以以第一传输机会为起点，依次针对第一传输机会之后的固定比例的传输机会进行信道侦听都失败后，可以在第一传输机会之后剩下的传输机会中随机选择传输机会进行信道侦听。As another example, the terminal device may take the first transmission opportunity as a starting point, and after the fixed proportion of transmission opportunities after the first transmission opportunity fail to perform channel detection, the terminal device may use the remaining transmission opportunities after the first transmission opportunity Randomly select a transmitter to listen to the channel.
例如，Msg2中包括10个传输机会，在时域上依次为传输机会1、传输机会2......传输机会10，第一传输机会为传输机会5，令针对传输机会依次进行信道侦听的比例为0.5，终端设备可以进行信道侦听的传输机会的数量为6(传输机会5、传输机会6......传输机会10)，则终端设备可以依次针对传输5、传输机会6和传输机会7进行信道侦听，若信道侦听均失败，则终端设备可以在剩下的3个传输机会中随机选择传输机会进行信道侦听，直到信道侦听成功。For example, Msg2 includes 10 transmission opportunities, which are sequentially
可选地，在本申请实施例中，在终端设备确定目标传输机会后，终端设备可以利用目标传输机会向网络设备发送消息3。相应地，网络设备可以接收终端设备发送的消息3。Optionally, in this embodiment of the present application, after the terminal device determines the target transmission opportunity, the terminal device may use the target transmission opportunity to send
可选地，在本申请实施例中，若终端设备根据第一传输机会，对第一传输机会之后的传输机会进行信道侦听的结果都为失败，则此次随机接入失败，终端设备可以进行下一次随机接入尝试，即重新向网络设备发送Preamble。Optionally, in this embodiment of the present application, if the terminal device fails to perform channel detection on the transmission opportunities after the first transmission opportunity according to the first transmission opportunity, then the random access fails this time, and the terminal device may Perform the next random access attempt, that is, resend the Preamble to the network device.
本申请实施例，网络设备向终端设备发送的RAR中包括用于传输消息3的多个传输机会，避免了只有一个传输机会时由于信道侦听失败后而导致的终端设备没有可用的传输机会，需要回退到消息1以重新尝试随机接入的问题。进一步地，终端设备可以根据多个传输机会中的第一传输机会，针对第一传输机会之后的多个传输机会进行信道侦听，增加了信道侦听成功的概率，从而可以降低随机接入的时延。In this embodiment of the present application, the RAR sent by the network device to the terminal device includes multiple transmission opportunities for transmitting
以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于上述实施方式中的具体细节，在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，这些简单变型均属于本申请的保护范围。The preferred embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of the present application.
例如，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。For example, the various specific technical features described in the above specific implementation manners can be combined in any suitable manner if there is no contradiction. Separately.
又例如，本申请的各种不同的实施方式之间也可以进行任意组合，只要其不违背本申请的思想，其同样应当视为本申请所公开的内容。As another example, any combination of various implementations of the present application can also be made, as long as they do not violate the idea of the present application, they should also be regarded as the content disclosed in the present application.
应理解，在本申请的各种方法实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that in various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be implemented in this application. The implementation of the examples constitutes no limitation.
上文中详细描述了根据本申请实施例的通信方法，下面将结合图11至图13，描述根据本申请实施例的通信装置，方法实施例所描述的技术特征适用于以下装置实施例。The communication method according to the embodiment of the present application has been described in detail above, and the communication device according to the embodiment of the present application will be described below with reference to FIG. 11 to FIG. 13 . The technical features described in the method embodiment are applicable to the following device embodiments.
图11示出了本申请实施例的终端设备400的示意性框图。如图11所示，该终端设备400包括：FIG. 11 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 11, the terminal device 400 includes:
通信单元410，用于接收网络设备发送的随机接入响应RAR，所述RAR中包括用于在随机接入中传输消息3的多个传输机会。The
处理单元420，用于根据所述多个传输机会中的第一传输机会，对所述第一传输机会之后的传输机会进行信道侦听，直到信道侦听成功。The
可选地，在本申请实施例中，所述处理单元420还用于：从所述多个传输机会中，选择所述第一传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述处理单元420具体用于：所述终端设备从所述多个传输机会中，随机选择所述第一传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述处理单元420具体用于：从所述多个传输机会中的部分传输机会中，随机选择所述第一传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述处理单元420还用于：根据触发随机接入事件的优先级，确定所述部分传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，第一优先级高于第二优先级，则第一起点在时域上早于第二起点，其中，所述第一起点为所述处理单元420根据所述第一优先级确定的所述部分传输机会的起点，所述第二起点为所述处理单元420根据所述第二优先级确定的所述部分传输机会的起点。Optionally, in this embodiment of the present application, if the first priority is higher than the second priority, then the first starting point is earlier than the second starting point in the time domain, wherein the first starting point is determined by the
可选地，在本申请实施例中，若触发所述终端设备400进行随机接入的事件的优先级大于或等于预设优先级，所述部分传输机会为所述多个传输机会中的前N个传输机会。Optionally, in this embodiment of the present application, if the priority of the event that triggers the terminal device 400 to perform random access is greater than or equal to the preset priority, the partial transmission opportunities are the first among the multiple transmission opportunities. N transmission opportunities.
可选地，在本申请实施例中，所述N是通过协议预设在所述终端设备400上的，或者，所述N是所述网络设备配置的。Optionally, in this embodiment of the present application, the N is preset on the terminal device 400 through a protocol, or the N is configured by the network device.
可选地，在本申请实施例中，若触发所述终端设备400进行随机接入的事件的优先级小于预设优先级，所述部分传输机会为所述多个传输机会中的后M个传输机会。Optionally, in this embodiment of the present application, if the priority of the event that triggers the terminal device 400 to perform random access is less than a preset priority, the partial transmission opportunities are the last M of the multiple transmission opportunities Transmission opportunities.
可选地，在本申请实施例中，所述M是通过协议预设在所述终端设备400上的，或者，所述N是所述网络设备配置的。Optionally, in this embodiment of the present application, the M is preset on the terminal device 400 through a protocol, or the N is configured by the network device.
可选地，在本申请实施例中，所述触发随机接入事件的优先级是协议规定的，或者，所述触发随机接入事件的优先级是所述网络设备配置的。Optionally, in this embodiment of the present application, the priority of the triggering random access event is specified by a protocol, or the priority of the triggering random access event is configured by the network device.
可选地，在本申请实施例中，所述处理单元420具体用于：以所述第一传输机会为起点，依次对所述第一传输机会之后的传输机会进行信道侦听。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述通信单元410还用于：利用目标传输机会，向所述网络设备发送所述消息3，其中，所述目标传输机会为所述终端设备侦听成功的信道对应的传输机会。Optionally, in this embodiment of the present application, the
应理解，该终端设备400可对应于方法300中的终端设备，可以实现该方法300中的终端设备的相应操作，为了简洁，在此不再赘述。It should be understood that the terminal device 400 may correspond to the terminal device in the
图12示出了本申请实施例的网络设备500的示意性框图。如图12所示，该网络设备500包括：Fig. 12 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in Figure 12, the network device 500 includes:
通信单元510，用于向终端设备发送随机接入响应RAR，所述RAR中包括用于所述终端设备在随机接入中传输消息3的多个传输机会。The
处理单元520，用于根据所述多个传输机会中的第一传输机会，确定用于接收所述消息3的目标传输机会。The
可选地，在本申请实施例中，所述处理单元520还用于：从所述多个传输机会中的部分传输机会中，确定所述第一传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述处理单元520还用于：根据触发随机接入事件的优先级，确定所述部分传输机会。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，第一优先级高于第二优先级，则第一起点在时域上早于第二起点，其中，所述第一起点为所述处理单元520根据所述第一优先级确定的所述部分传输机会的起点，所述第二起点为所述处理单元520根据所述第二优先级确定的所述部分传输机会的起点。Optionally, in this embodiment of the present application, if the first priority is higher than the second priority, then the first starting point is earlier than the second starting point in the time domain, wherein the first starting point is determined by the
可选地，在本申请实施例中，若触发所述终端设备进行随机接入的事件的优先级大于或等于预设优先级，所述部分传输机会为所述多个传输机会中的前N个传输机会。Optionally, in this embodiment of the present application, if the priority of the event that triggers the random access of the terminal device is greater than or equal to the preset priority, the partial transmission opportunities are the first N among the multiple transmission opportunities transmission opportunities.
可选地，在本申请实施例中，所述通信单元510还用于：向所述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N。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，若触发所述终端设备进行随机接入的事件的优先级小于预设优先级，所述部分传输机会为所述多个传输机会中的后M个传输机会。Optionally, in this embodiment of the present application, if the priority of the event that triggers the random access of the terminal device is lower than the preset priority, the partial transmission opportunities are the last M transmissions among the multiple transmission opportunities Chance.
可选地，在本申请实施例中，所述通信单元510还用于：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M。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述通信单元510还用于：向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述触发随机接入事件的优先级。Optionally, in this embodiment of the present application, the
可选地，在本申请实施例中，所述通信单元510还用于：利用所述目标传输机会，接收所述终端设备发送的所述消息3。Optionally, in this embodiment of the present application, the
应理解，该网络设备500可对应于方法300中的网络设备，可以实现该方法300中的网络设备的相应操作，为了简洁，在此不再赘述。It should be understood that the network device 500 may correspond to the network device in the
图13是本申请实施例提供的一种通信设备600示意性结构图。图13所示的通信设备600包括处理器610，处理器610可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。Fig. 13 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 13 includes a
可选地，如图13所示，通信设备600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。Optionally, as shown in FIG. 13 , the communication device 600 may further include a
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。Wherein, the
可选地，如图13所示，通信设备600还可以包括收发器630，处理器6710可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。Optionally, as shown in FIG. 13, the communication device 600 may further include a transceiver 630, and the processor 6710 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.
可选地，该通信设备600具体可为本申请实施例的网络设备，并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
可选地，该通信设备600具体可为本申请实施例的终端设备，并且该通信设备600可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the communication device 600 may specifically be a terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
图14是本申请实施例的装置的示意性结构图。图14所示的装置700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。Fig. 14 is a schematic structural diagram of a device according to an embodiment of the present application. The apparatus 700 shown in FIG. 14 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
可选地，如图14所示，装置700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。Optionally, as shown in FIG. 14 , the device 700 may further include a
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。Wherein, the
可选地，该装置700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。Optionally, the device 700 may also include an
可选地，该装置700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。Optionally, the device 700 may also include an
可选地，该装置可应用于本申请实施例中的终端设备，并且该装置可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the device can be applied to the terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here.
可选地，该装置可应用于本申请实施例中的网络设备，并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the device can be applied to the network device in the embodiment of the present application, and the device can implement the corresponding process implemented by the network device in each method of the embodiment of the present application, and for the sake of brevity, details are not repeated here.
可选地，该装置700可以为芯片。应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。Optionally, the device 700 may be a chip. It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital SignalProcessor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable Logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data RateSDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(DirectRambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) And direct memory bus random access memory (DirectRambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
图15是本申请实施例提供的一种通信系统800的示意性框图。如图15所示，该通信系统800包括终端设备810和网络设备820。FIG. 15 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 15 , the communication system 800 includes a
其中，该终端设备810可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备820可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。Wherein, the
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
可选地，该计算机可读存储介质可应用于本申请实施例中的终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.
可选地，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。The embodiment of the present application also provides a computer program product, including computer program instructions.
可选地，该计算机程序产品可应用于本申请实施例中的终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the methods of the embodiments of the present application. For the sake of brevity, the Let me repeat.
可选地，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, the Let me repeat.
本申请实施例还提供了一种计算机程序。The embodiment of the present application also provides a computer program.
可选地，该计算机程序可应用于本申请实施例中的终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program can be applied to the terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity , which will not be repeated here.
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program is run on the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , which will not be repeated here.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
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