CN103220070A

Movatterモバイル変換

Info

Publication number: CN103220070A
Application number: CN2012100189067A
Authority: CN
Inventors: 林志嵘; 戴博; 任璐; 夏树强
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-01-20
Filing date: 2012-01-20
Publication date: 2013-07-24
Anticipated expiration: 2032-01-20
Also published as: CN103220070B

Abstract

The invention discloses a sending method for an uplink signal and user equipment. The sending method for the uplink signal is applied to a carrier aggregation system. The sending method for the uplink signal comprises the steps that after the configuration of more than two time advance values, according to a signal indication sent by a base station or a predefined rule, for an uplink channel which is about to be front-and-back symbol overlapped in a time domain on different carrier waves and / or an uplink signal, the user equipment conducts sending after velocity matching, sending after discarding or sending simultaneously. By the adoption of the sending method for the uplink signal and the user equipment, the problem that in the prior art signal transmission when signal symbols transmitted in different uplink moment carriers in the carrier aggregation system which is configured with multiple terminal access (MTA) are overlapped in the time domain in a front-and-back mode is not supported is solved.

Description

Uplink signal sending method and user equipment

Technical Field

The present invention relates to the field of digital communications, and in particular, to 3GPP Long Term Evolution and 3GPP Long Term Evolution Advanced (Long Term Evolution Advanced, LTE-a for short), and in particular, to a method for transmitting an uplink signal and a user equipment.

Background

An uplink physical channel of a Long Term Evolution (Long Term Evolution, LTE for short) system includes: a Physical Random Access Channel (PARCH), a Physical Uplink Shared Channel (PUSCH), and a Physical Uplink Control Channel (PUCCH). The uplink of LTE employs a single carrier OFDM (Orthogonal Frequency Division Multiplexing) technique, and the reference signal and data are multiplexed together by TDM (Time Division Multiplexing). The uplink Reference Signal is divided into a Demodulation Reference Signal (DMRS) and a measurement Reference Signal (SRS), where the DMRS is divided into a PUCCH Demodulation Reference Signal and a PUSCH Demodulation Reference Signal, and the DMRS is used for different channel transmissions. The DMRS mainly functions to estimate an uplink channel and perform coherent detection and demodulation at a base station (referred to as eNB), and the SRS mainly functions to measure the uplink channel, thereby facilitating frequency selective scheduling of the eNB.

In an LTE (Long Term Evolution) system, in order to achieve and maintain uplink synchronization between a User Equipment (UE) and a base station, the base station sends a Timing Advance (TA) to each UE according to a transmission delay between the base station and each UE, and the UEs Advance or delay respective uplink transmission timings according to the Timing Advance sent by the base station, so as to compensate for a transmission delay from a UE to the base station, and enable uplink signals of different UEs to reach the base station within a reception window of the base station.

The LTE-a (LTE Advanced, long term evolution Advanced) system is a next generation evolution system of the LTE system, and it introduces a concept of Carrier Aggregation. The LTE system bandwidth of Carrier aggregation may be regarded as a Component Carrier (Component Carrier) spectrum, and each Component Carrier may also be referred to as a serving Cell (serving Cell), that is, one spectrum may be aggregated by multiple Component Carrier frequencies (serving cells). One resource of R10UE is formed by multiple serving cells (component carriers) in the frequency domain, where one cell is called a Primary cell (PCell) and the rest are called Secondary cells (scells).

After the carrier aggregation technology is introduced, the user equipment can simultaneously work on a plurality of component carriers, and the component carriers can be continuous or discontinuous on a frequency band; may be within the same frequency band or may be from different frequency bands. For the case that the component carriers are not continuous or the component carriers come from different frequency bands, the timing advance on each component carrier may be different because each component carrier has different transmission characteristics; even for multiple component carriers belonging to the same frequency band and continuing on the frequency band, if each component carrier originates from a different Radio Remote Unit (RRU), or each component carrier is processed by a different repeater (repeater) in order to increase cell coverage, the time advances on each component carrier may be different from each other. In the LTE system, the UE only operates on one carrier (for the time division duplex mode, one carrier, and for the frequency division duplex mode, including a pair of uplink and downlink carriers, for convenience of description, these two cases are referred to as a carrier for short), only uplink synchronization of one uplink needs to be maintained, and in carrier aggregation, the UE may operate on Multiple component carriers simultaneously, and the TA of these component carriers may be different, that is, Multiple Timing Advances (MTA) exist simultaneously.

In a scenario where MTA exists, since the TAs of different uplink component carriers may be different, which means that signal symbols transmitted on different uplink component carriers may not be aligned in a time domain, there is a possibility that signal symbols transmitted on different uplink component carriers overlap back and forth in the time domain. However, in the LTE protocol of Rel-10 and previous releases, a transmission method when transmission symbols overlap one another in the time domain is not defined.

Disclosure of Invention

The present invention mainly aims to provide a method for sending an uplink signal and a user equipment, so as to solve the problem of signal transmission when signal symbols transmitted by different uplink component carriers overlap front and back on a time domain in a scenario where MTA exists.

In order to solve the above problem, the present invention provides a method for transmitting an uplink signal, which is applied to a carrier aggregation system, and includes:

after more than two timing advances are configured, the user equipment performs rate matching and then sends, discards and then sends or simultaneously sends the uplink channel and/or the uplink signal on which front and back symbols in time domain overlap are to occur on different carriers according to a signaling indication sent by the base station or a predefined rule.

Further, the air conditioner is provided with a fan,

the signaling indication is a sending indication, where the sending indication is used to indicate the ue to perform simultaneous transmission on an uplink channel and/or an uplink signal on different carriers where symbol overlapping will occur in a time domain, or to indicate the ue to perform rate matching on the uplink channel and/or the uplink signal on different carriers where symbol overlapping will occur in the time domain, and then send the uplink channel and/or the uplink signal after discarding the uplink channel and/or the uplink signal, or send the uplink signal and/or the uplink signal after discarding the uplink channel and/or the uplink signal according.

Further, the air conditioner is provided with a fan,

performing rate matching on an uplink channel and/or an uplink signal on which front and back symbol overlapping in a time domain is to occur on different carriers, specifically comprising:

and reserving a specific symbol of the uplink channel for the uplink channel and/or the uplink signal of which the symbols are overlapped front and back on the time domain, and not transmitting the specific symbol in the symbol.

Further, the air conditioner is provided with a fan,

discarding uplink channels and/or uplink signals on different carriers where symbol overlap will occur before and after in time domain, specifically including:

and discarding the uplink channel and/or uplink signal of which the specific symbol is overlapped front and back in the time domain, and not transmitting the corresponding uplink channel and/or uplink signal on the discarded symbol.

Further, the air conditioner is provided with a fan,

the predefined rules comprise a triggering rule and a sending rule; processing the uplink channel and/or the uplink signal according to the sending rule under the condition of meeting the triggering rule;

the trigger rule is at least one of the following rules:

the difference value of the values of the timing advance of different uplink carriers configured for the user equipment by the base station exceeds a first preset threshold value; or,

the user equipment finds that the difference of actual transmission time between different configured uplink carriers exceeds a second preset threshold value.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when an uplink channel on which front and back symbols in a time domain are overlapped on different carriers is a Physical Uplink Shared Channel (PUSCH), the user equipment selects any one of the following modes for processing:

the first method is as follows: the user equipment simultaneously sends PUSCHs on different carriers;

the second method comprises the following steps: the user equipment discards the PUSCH with lower priority according to a certain priority and sends the PUSCH with higher priority; when the PUSCHs with the same priority are overlapped by front and rear symbols in a time domain, the user equipment simultaneously transmits the PUSCHs with the same priority;

the third method comprises the following steps: the user equipment leaves empty symbols which are overlapped with PUSCH symbols with higher priority in the PUSCH with lower priority according to a certain priority, and then sends the PUSCHs on different carriers; and when the PUSCHs with the same priority are about to be subjected to symbol overlapping in the front and back time domain, the user equipment simultaneously transmits the PUSCHs with the same priority.

Further, the air conditioner is provided with a fan,

when the priority is determined according to whether the uplink control information is carried, the priority of the PUSCH carrying the uplink control information is higher than the priority of the PUSCH not carrying the uplink control information;

when the priority is determined according to the carrier carrying the PUSCH, the priority of the PUSCH on the main service cell is higher than that of the PUSCH on the auxiliary service cell;

when the priority is determined according to the subframe index, the priority of the PUSCH of the previous subframe is higher than that of the PUSCH of the next subframe;

when the priority is determined according to the subframe index, the priority of the PUSCH of the next subframe is higher than that of the PUSCH of the previous subframe;

and when the priority is determined according to whether the data is newly transmitted, the priority of the PUSCH carrying the newly transmitted data is higher than the priority of the PUSCH carrying the retransmitted data.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when an uplink channel on which front and back symbols in a time domain are overlapped on different carriers is a Physical Uplink Control Channel (PUCCH) and a PUSCH, the user equipment selects any one of the following modes for processing:

the first method is as follows: the user equipment simultaneously transmits PUSCH and PUCCH on different carriers;

the second method comprises the following steps: the user equipment discards the PUSCH and only sends the PUCCH;

the third method comprises the following steps: and the user equipment performs rate matching, leaves the symbols which are overlapped with the PUCCH symbols in the PUSCH empty, and then sends the PUSCH and the PUCCH on different carriers.

Further, the air conditioner is provided with a fan,

when the PUSCH and the PUCCH on two or more different carriers are to have symbol overlapping in the front and back in the time domain, if there is a situation that the symbols are to be overlapped in the front and back in the time domain between the two or more PUSCHs after all PUSCHs overlapped with the PUCCH are processed in the third way, then any one of the following ways is selected to process the two or more PUSCHs:

mode 1: the user equipment simultaneously sends PUSCHs on different carriers;

mode 2: the user equipment discards the PUSCH with lower priority according to a certain priority and sends the PUSCH with higher priority; when the PUSCHs with the same priority are overlapped by front and rear symbols in a time domain, the user equipment simultaneously transmits the PUSCHs with the same priority;

mode 3: the user equipment leaves empty symbols which are overlapped with PUSCH symbols with higher priority in the PUSCH with lower priority according to a certain priority, and then sends the PUSCHs on different carriers; and when the PUSCHs with the same priority are about to be subjected to symbol overlapping in the front and back time domain, the user equipment simultaneously transmits the PUSCHs with the same priority.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when uplink channels on different carriers where symbol overlapping in the front and back in the time domain is to occur are PUSCH and SRS, the user equipment may select any one of the following manners to process:

the first method is as follows: the user equipment simultaneously transmits PUSCH and SRS on different carriers;

the second method comprises the following steps: the user equipment discards the SRS and only sends the PUSCH;

the third method comprises the following steps: the user equipment discards the PUSCH and only sends the SRS;

the method is as follows: and the user equipment reserves the symbols which are overlapped with the SRS in the PUSCH and then sends the PUSCH and the SRS on different carriers.

Further, the air conditioner is provided with a fan,

when the PUSCH on two or more different carriers and the SRS on two or more different carriers are to have symbol overlap in the front-back direction in the time domain, if there is a situation that the symbol overlap in the front-back direction in the time domain between the two or more PUSCHs after processing all the overlapped SRS and the PUSCH in the above four ways, then any one of the following ways is selected to process the two or more PUSCHs:

mode 1: the user equipment simultaneously sends PUSCHs on different carriers;

Further, the air conditioner is provided with a fan,

the sending rule includes:

when uplink channels on different carriers where symbol overlapping in front and back in time domain is to occur are a PUCCH and an SRS, the user equipment selects any one of the following manners to process:

the first method is as follows: the user equipment simultaneously transmits PUCCH and SRS on different carriers;

the second method comprises the following steps: and the user equipment discards the SRS and only sends PUCCH.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when the SRS and the PUCCH on a plurality of different carriers are to overlap with each other in the preceding and following symbols in the time domain, the user equipment selects any one of the following manners to process:

the first method is as follows: the user equipment simultaneously transmits SRS and PUCCH on a plurality of different carriers;

the second method comprises the following steps: the user equipment discards all SRS and only sends PUCCH;

the third method comprises the following steps: the user equipment discards all periodic SRSs in which symbols are overlapped before and after the occurrence of the symbol overlap, and simultaneously transmits all non-periodic SRSs and PUCCHs in which symbols are overlapped before and after the occurrence of the symbol overlap.

Correspondingly, the invention also provides a user equipment, which is applied to the carrier aggregation system and comprises the following components:

the receiving module is used for receiving more than two time leads configured by the base station;

and the sending module is used for carrying out rate matching and then sending, discarding and then sending or simultaneously sending the uplink channel and/or the uplink signal which are to be subjected to front-back symbol overlapping on the time domain on different carriers according to the signaling indication or the predefined rule sent by the base station.

Further, the air conditioner is provided with a fan,

the sending module performs rate matching on an uplink channel and/or an uplink signal on different carriers where symbol overlapping before and after a time domain occurs, and specifically includes:

the sending module leaves a certain specific symbol of the uplink channel empty for the uplink channel and/or the uplink signal of which the symbols are overlapped front and back on the time domain, and does not transmit in the symbol.

Further, the air conditioner is provided with a fan,

the sending module discards an uplink channel and/or an uplink signal on different carriers where symbol overlapping in a front-back time domain is to occur, and specifically includes:

the sending module discards an uplink channel and/or an uplink signal of a specific symbol which is overlapped front and back on a time domain, and does not transmit the corresponding uplink channel and/or the corresponding uplink signal on the discarded symbol.

Further, the air conditioner is provided with a fan,

the trigger rule is at least one of the following rules:

Further, the air conditioner is provided with a fan,

the sending rule includes:

when an uplink channel on which front and back symbols in a time domain are overlapped on different carriers is a Physical Uplink Shared Channel (PUSCH), the sending module selects any one of the following modes for processing:

the first method is as follows: the sending module sends PUSCHs on different carriers simultaneously;

the second method comprises the following steps: the sending module discards the PUSCH with lower priority according to a certain priority and sends the PUSCH with higher priority; when the PUSCHs with the same priority are to be subjected to symbol overlapping in the time domain, the sending module sends the PUSCHs with the same priority at the same time;

the third method comprises the following steps: the sending module leaves empty the symbols which are overlapped with the PUSCH symbols with higher priority in the PUSCH with lower priority according to a certain priority, and then sends the PUSCHs on different carriers; and when the PUSCHs with the same priority are to be subjected to symbol overlapping in the front and back time domain, the sending module sends the PUSCHs with the same priority at the same time.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when an uplink channel on which front and back symbols in a time domain are overlapped on different carriers is a Physical Uplink Control Channel (PUCCH), the sending module selects any one of the following modes for processing:

the first method is as follows: the sending module sends PUSCH and PUCCH on different carriers simultaneously;

the second method comprises the following steps: the sending module discards the PUSCH and only sends the PUCCH;

the third method comprises the following steps: and the sending module performs rate matching, leaves the symbols which are overlapped with the PUCCH symbols in the PUSCH empty, and then sends the PUSCH and the PUCCH on different carriers.

Further, the air conditioner is provided with a fan,

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

mode 2: the sending module discards the PUSCH with lower priority according to a certain priority and sends the PUSCH with higher priority; when the PUSCHs with the same priority are to be subjected to symbol overlapping in the time domain, the sending module sends the PUSCHs with the same priority at the same time;

mode 3: the sending module leaves empty the symbols which are overlapped with the PUSCH symbols with higher priority in the PUSCH with lower priority according to a certain priority, and then sends the PUSCHs on different carriers; and when the PUSCHs with the same priority are to be subjected to symbol overlapping in the front and back time domain, the sending module sends the PUSCHs with the same priority at the same time.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when the uplink channel on which the front and rear symbols in the time domain are overlapped is the PUSCH and the Sounding Reference Signal (SRS), the sending module may select any one of the following manners to process:

the first method is as follows: the sending module sends PUSCH and SRS on different carriers simultaneously;

the second method comprises the following steps: the sending module discards the SRS and only sends the PUSCH;

the third method comprises the following steps: the sending module discards the PUSCH and only sends the SRS;

the method is as follows: and the transmitting module reserves the symbols which are overlapped with the SRS in the PUSCH and then transmits the PUSCH and the SRS on different carriers.

Further, the air conditioner is provided with a fan,

when the PUSCH on two or more different carriers and the SRS on two or more different carriers are to have symbol overlap in the front-back direction in the time domain, if there is a situation that the symbol overlap in the front-back direction in the time domain between the two or more PUSCHs after all the overlapped SRS and the PUSCH are processed in the fourth way, the sending module selects any one of the following ways to process the two or more PUSCHs:

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

Further, the air conditioner is provided with a fan,

the sending rule includes:

when uplink channels on different carriers where symbol overlapping in front and back in time domain is to occur are a PUCCH and an SRS, the transmitting module selects any one of the following manners to process:

the first method is as follows: the sending module sends PUCCH and SRS on different carriers simultaneously;

the second method comprises the following steps: and the sending module discards the SRS and only sends the PUCCH.

Further, the air conditioner is provided with a fan,

the sending rule includes:

when the SRS and the PUCCH on a plurality of different carriers are to overlap with each other in the preceding and following symbols in the time domain, the transmitting module selects any one of the following manners to process:

the first method is as follows: the sending module sends SRS and PUCCH on a plurality of different carriers simultaneously;

the second method comprises the following steps: the sending module discards all SRS and only sends PUCCH;

the third method comprises the following steps: the sending module discards all periodic SRSs in which symbols are to be overlapped, and sends all non-periodic SRSs and PUCCHs in which symbols are to be overlapped.

By adopting the invention, the problem of signal transmission when signal symbols transmitted in different uplink component carriers in a carrier aggregation system which does not support configuration of MTA are overlapped front and back on a time domain in the prior art is solved.

Drawings

Fig. 1 is a flowchart illustrating a method for transmitting an uplink signal according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating another uplink signal transmission method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an uplink signal in application example 1-1 and application example 1-2 in the present invention;

fig. 4 is a schematic diagram of an uplink signal in application examples 1 to 3 of the present invention;

fig. 5 is a schematic diagram of an uplink signal in application example 2-1 and application example 2-2 in the present invention;

fig. 6 is a schematic diagram of an uplink signal in application examples 2 to 3 of the present invention;

fig. 7 is a schematic diagram of uplink signals in application example 3-1, application example 3-2, and application example 3-3 in the present invention;

fig. 8 is a schematic diagram of an uplink signal in application example 3-4 of the present invention;

fig. 9 is a schematic diagram of an uplink signal in application example 4-1 and application example 4-2 of the present invention;

fig. 10 is a schematic diagram of uplink signals in application example 5-1, application example 5-2, and application example 5-3 in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

A method for transmitting an uplink signal, applied to a carrier aggregation system, as shown in fig. 1 and 2, includes:

after more than two TAs are configured, the UE performs rate matching on an uplink channel and/or an uplink signal on different carriers where symbol overlapping occurs in the time domain before and after and/or according to a signaling instruction of the eNB or a predefined rule, and then transmits the uplink channel and/or the uplink signal, and then transmits the uplink signal after discarding or simultaneously transmits the uplink signal. The uplink channel may be a PUSCH, a PUCCH, and/or a PRACH; the uplink signal may be an SRS, which may be a periodic SRS or an aperiodic SRS.

In a specific implementation, the signaling indication of the eNB may be a physical signaling or a higher layer signaling indication, and the signaling content may be a trigger indication and/or a transmission indication.

When the signaling content is a sending instruction, the sending instruction may instruct to allow simultaneous sending of uplink channels and/or uplink signals on different carriers where symbol overlapping will occur before and after time domain, or instruct the UE to perform rate matching, then resending, discard, and then resending, or simultaneously send the uplink channels and/or uplink signals on different carriers where symbol overlapping will occur before and after time domain according to a certain rule (the specific rule may refer to the description of the sending rule, which is not described herein again).

Wherein the simultaneous transmission specifically includes: directly sending uplink channels and/or uplink signals of symbols to be generated, which are overlapped front and back on a time domain, without processing; the rate matching specifically includes: performing Rate Matching (RM) on an uplink channel and/or an uplink signal where symbols to be generated are overlapped front and back on a time domain, reserving a certain specific symbol of the uplink channel, and not transmitting in the symbol; the discarding is specifically: and discarding the uplink channel and/or the uplink signal of a specific symbol to be overlapped in the front-back direction on the time domain, and not transmitting the discarded uplink channel and/or the discarded uplink signal.

Further, the predefined rules are a trigger rule and a sending rule respectively, and processing is performed according to the sending rule on the premise that the trigger rule is met; wherein the triggering rule in the predefined rules is at least one of the following rules:

1) the difference value of TA values of different uplink carriers configured by the eNB for the UE exceeds a certain preset threshold value;

2) the UE finds that the difference between the actual transmission times of the configured different uplink carriers exceeds a certain preset threshold.

The transmission rule in the predefined rules is at least one of the following rules:

1) when uplink channels on different carriers where symbol overlapping before and after in a time domain is to occur are all PUSCHs, the UE can select any one of the following modes for processing:

a) UE simultaneously sends PUSCHs on different carriers;

b) and the UE discards the PUSCH with lower priority according to a certain priority and sends the PUSCH with higher priority. When the PUSCHs with the same priority are overlapped by front and rear symbols in the time domain, the UE simultaneously sends the PUSCHs with the same priority;

c) and the UE performs rate matching on the PUSCHs with lower priorities according to a certain priority, leaves empty the symbols which are overlapped with the PUSCH symbols with higher priorities in the PUSCHs with lower priorities, and then sends the PUSCHs on different carriers. And when the PUSCHs with the same priority are about to overlap front and back symbols in the time domain, the UE simultaneously transmits the PUSCHs with the same priority.

Note that, the priority in the present rule 1) is at least one of the following priorities:

I) determining a priority according to whether Uplink Control Information (UCI) is carried, wherein: the priority of the PUSCH carrying the UCI is higher than that of the PUSCH not carrying the UCI;

II) priority determined according to a carrier carrying PUSCH, wherein: the priority of the PUSCH on the PCell is higher than that of the PUSCH on the SCell;

III) priority determined by subframe index, wherein: the priority of the PUSCH of the previous subframe is higher than that of the PUSCH of the next subframe;

IV) priority determined by subframe index, wherein: the priority of the PUSCH of the next subframe is higher than that of the PUSCH of the previous subframe;

v) a priority determined according to whether data is newly transmitted, wherein: the priority of the PUSCH carrying the newly transmitted data is higher than the priority of the PUSCH carrying the retransmitted data.

2) When uplink channels on different carriers where symbol overlapping in front and back in time domain is to occur are a PUSCH and a PUCCH, the UE may select any one of the following modes for processing:

a) the UE simultaneously transmits PUSCH and PUCCH on different carriers;

b) the UE discards the PUSCH and only sends the PUCCH;

c) and the UE performs rate matching on the PUSCH, blanks the symbols which are overlapped with the PUCCH symbols in the PUSCH, and then sends the PUSCH and the PUCCH on different carriers.

When the PUSCH and the PUCCH on a plurality of different carriers are to have symbol overlapping in the front and back in the time domain, the UE performs the same operation on all PUSCHs overlapping with the PUCCH according to the present method c), and if there is a situation that the symbol overlapping in the front and back in the time domain still exists between the PUSCHs, the PUSCH on the different carriers that is to have symbol overlapping in the front and back in the time domain is processed according to rule 1).

3) When uplink channels on different carriers where symbol overlapping in the front and back in the time domain is to occur are a PUSCH and an SRS, the UE may select any one of the following manners to process:

a) the UE simultaneously transmits PUSCHs and SRSs on different carriers;

b) the UE discards the SRS and only sends the PUSCH;

c) the UE discards the PUSCH and only sends the SRS;

d) and the UE performs rate matching on the PUSCH, reserves symbols overlapped with the SRS in the PUSCH, and then transmits the PUSCH and the SRS on different carriers.

When the PUSCH on a plurality of different carriers and the SRS on a plurality of different carriers are to have symbol overlap in the front and back in the time domain, the UE processes the PUSCH on the different carriers to have symbol overlap in the front and back in the time domain according to rule 1) if there is a situation that the symbol overlap in the front and back in the time domain between the PUSCHs after operating all the SRS and all the PUSCHs that are overlapped in the c) according to the present method.

4) When uplink channels on different carriers where symbol overlapping in front and back in time domain is to occur are a PUCCH and an SRS, the UE may select any one of the following manners to process:

a) the UE simultaneously transmits PUCCH and SRS on different carriers;

b) the UE discards the SRS and only sends PUCCH;

5) when the SRS and the PUCCH on a plurality of different carriers are to overlap with each other in the front and rear symbols in the time domain, the UE may select any one of the following manners to process:

a) the UE simultaneously transmits SRS and PUCCH on a plurality of different carriers;

b) the UE discards all SRS and only sends PUCCH;

c) and the UE discards all periodic SRSs with the overlapping of front and back symbols, and simultaneously transmits all non-periodic SRSs with the overlapping of front and back symbols and PUCCHs.

In this embodiment, a user equipment applied in a carrier aggregation system includes:

Preferably, the first and second liquid crystal films are made of a polymer,

the trigger rule is at least one of the following rules:

Preferably, the first and second liquid crystal films are made of a polymer,

the sending rule includes:

Preferably, the first and second liquid crystal films are made of a polymer,

the sending rule includes:

Preferably, the first and second liquid crystal films are made of a polymer,

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

Preferably, the first and second liquid crystal films are made of a polymer,

the sending rule includes:

Preferably, the first and second liquid crystal films are made of a polymer,

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

Preferably, the first and second liquid crystal films are made of a polymer,

the sending rule includes:

Preferably, the first and second liquid crystal films are made of a polymer,

the sending rule includes:

The invention will be further explained below using several application examples in conjunction with the drawings.

Application example 1

In the following application examples 1-5, the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell and CC2 is SCell. CC1 belongs to a different TA group than CC2, where CC1 belongs toTA group 1 and CC2 belongs toTA group 2.

Application example 1-1

As shown in fig. 3, in subframe n, both CC1 and CC2 need to transmit PUSCH. Since the TA of CC1 is different from that of CC2, the PUSCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n onCC 2. TAG in FIG. 3 represents TA group, as well as in the following figures.

If the eNB indicates the UE through signaling to simultaneously transmit the PUSCH on CC1 and CC2, or the UE simultaneously transmits the PUSCH on CC1 and CC2 according to predefined rule 1), the UE directly transmits the PUSCH on CC1 andCC 2.

Application examples 1-2

As shown in fig. 3, in subframe n, both CC1 and CC2 need to transmit PUSCH. Since the TA of CC1 is different from that of CC2, the PUSCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n onCC 2. And PUSCH in CC1 carries UCI, and PUSCH in CC2 carries no UCI.

If the eNB instructs the UE to drop the PUSCH on one of the CCs according to the priority through signaling, or the UE drops the PUSCH on one of the CCs according to the priority in the mode b) in the predefined rule 1), then:

when the method for establishing the priority is method II), that is, the priority is established according to the carrier carrying the PUSCH, since the CC1 is the PCell, the PUSCH on the CC1 has higher priority than the PUSCH on the CC2, and at this time, the UE discards the PUSCH on the CC2 and only sends the PUSCH on theCC 1;

when the method for establishing the priority is method I), that is, the priority is established according to whether UCI is carried or not, since the PUSCH in the CC1 carries UCI, the PUSCH on the CC1 has higher priority than the PUSCH on the CC2, and at this time, the UE discards the PUSCH on the CC2 and only sends the PUSCH on theCC 1.

Application examples 1 to 3

As shown in fig. 4, in subframe n, CC1 needs to transmit PUSCH, and in subframe n +1, CC2 needs to transmit PUSCH. Since CC1 is not the same TA as CC2, the last symbol of PUSCH in subframe n on CC1 partially overlaps with the first symbol of PUSCH in subframe n +1 onCC 2. And PUSCH in CC1 carries UCI, and PUSCH in CC2 carries no UCI.

If the eNB instructs the UE to perform rate matching on one of the PUSCHs according to the priority and leave empty the symbols overlapping with the other PUSCH symbols, or the UE performs rate matching on one of the PUSCHs according to the priority and leave empty the symbols overlapping with the other PUSCH symbols, according to the signaling, in a manner c) in the predefined rule 1):

when the method for establishing the priority is method I), that is, the priority is established according to whether UCI is carried or not, since the PUSCH in the CC1 carries UCI, the PUSCH on the CC1 has higher priority than the PUSCH on the CC2, so the UE performs rate matching on the PUSCH on the CC2, leaves empty the first symbol in the PUSCH on the CC2, and then sends the CC1 in the subframe n and the other symbols in the PUSCH on the CC2 in the subframe n + 1;

when the method for establishing the priority is method II), that is, the priority is established according to the carrier carrying the PUSCH, since the CC1 is PCell, the PUSCH on the CC1 has higher priority than the PUSCH on the CC2, the UE performs rate matching on the PUSCH on the CC2, blanks the first symbol in the PUSCH on the CC2, and then sends the CC1 in the subframe n and the PUSCH on the CC2 in the subframe n + 1;

when the method for establishing the priority is method III), that is, the priority is established by subframe index, and the PUSCH of the previous subframe is higher than the PUSCH of the next subframe, since the subframe index corresponding to the PUSCH on CC1 is n and the subframe index corresponding to the PUSCH on CC2 is n +1, the PUSCH on CC1 has higher priority than the PUSCH on CC2, the UE performs rate matching on the PUSCH on CC2, leaves the first symbol in the PUSCH on CC2 empty, and then sends CC1 in subframe n and the PUSCH on CC2 in subframe n + 1;

when the method for establishing the priority is method IV), that is, the priority is established by subframe index, and the PUSCH of the next subframe is higher than the PUSCH of the previous subframe, since the subframe index corresponding to the PUSCH on CC1 is n and the subframe index corresponding to the PUSCH on CC2 is n +1, the PUSCH on CC2 has higher priority than the PUSCH on CC1, the UE performs rate matching on the PUSCH on CC1, blanks the last symbol in the PUSCH on CC1, and then sends the PUSCH on CC1 in subframe n and CC2 insubframe n + 1.

Application examples 1 to 4

As shown in fig. 3, in subframe n, both CC1 and CC2 need to transmit PUSCH. Since the TA of CC1 is different from that of CC2, the PUSCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n onCC 2. Wherein the PUSCH in CC1 is newly transmitted data and the PUSCH in CC2 is retransmitted data.

If the eNB instructs the UE to perform rate matching on one of the PUSCHs according to priority and leave empty the symbol overlapped with another PUSCH symbol at this time, or the UE performs rate matching on one of the PUSCHs according to predefined rule 1) according to priority and leave empty the symbol overlapped with another PUSCH symbol at this time, when the priority is made in method VI), since the PUSCH in CC1 is newly transmitted data and the PUSCH in CC2 is retransmitted data, the PUSCH in CC1 has higher priority than the PUSCH in CC2, the UE discards the PUSCH in CC2 and only sends the PUSCH inCC 1.

Application examples 1 to 5

As shown in fig. 4, in subframe n, CC1 needs to transmit PUSCH, and in subframe n +1, CC2 needs to transmit PUSCH. Since CC1 is not the same TA as CC2, the last symbol of PUSCH in subframe n on CC1 partially overlaps with the first symbol of PUSCH in subframe n +1 onCC 2. Wherein the PUSCH in CC1 is newly transmitted data and the PUSCH in CC2 is retransmitted data.

If the eNB instructs the UE to drop the PUSCH on one of the CCs according to priority through signaling at this time, or the UE performs rate matching on one of the PUSCHs according to priority and leaves empty the symbol overlapped with another PUSCH symbol, if the priority is made in method VI) at this time, since the PUSCH in the CC1 is newly transmitted data and the PUSCH in the CC2 is retransmitted data, the PUSCH in the CC1 has higher priority than the PUSCH in the CC2, the UE performs rate matching on the PUSCH in the CC2 in the subframe n +1, leaves empty the first symbol of the PUSCH in the CC2 in the subframe n +1, and sends the PUSCH in the CC1 in the subframe n and the PUSCH in the CC2 in thesubframe n + 1.

Application example 2

In the following application examples 2-1-2-3, the UE configures two uplink carriers CC1 and CC2, where CC1 is a PCell and CC2 is an SCell. CC1 belongs to a different TA group than CC2, where CC1 belongs toTA group 1 and CC2 belongs toTA group 2.

Application example 2-1

As shown in fig. 5, in subframe n, CC1 needs to transmit PUCCH and CC2 needs to transmit PUSCH. Since CC1 is in a different TA than CC2, the PUCCH symbol in subframe n on CC1 partially overlaps the PUSCH symbol in subframe n onCC 2.

If the eNB instructs the UE to simultaneously transmit the PUCCH on CC1 and the PUSCH on CC2 through signaling at this time, or the UE simultaneously transmits the PUCCH on CC1 and the PUSCH on CC2 according to the mode a) in the predefined rule 2), the UE directly transmits the PUCCH on CC1 and the PUSCH onCC 2.

Application example 2-2

At this time, if the eNB signals the UE to drop the PUSCH on the CC2 and only transmit the PUCCH on the CC1, or the UE drops the PUSCH which is symbol-overlapped with the PUCCH according to the predefined rule 2), the UE drops the PUSCH on the CC2 and only transmits the PUCCH on theCC 1.

Application examples 2 to 3

As shown in fig. 6, in subframe n, CC1 needs to transmit PUCCH, and in subframe n +1, CC2 needs to transmit PUSCH. Since CC1 is not the same TA as CC2, the last symbol of PUCCH in subframe n on CC1 partially overlaps the first symbol of PUSCH in subframe n +1 onCC 2.

If the eNB indicates the UE to perform rate matching on the PUSCH on the CC2 through signaling, the first symbol of the PUSCH on the subframe n +1 in the CC2 is reserved, then the PUCCH on the CC1 in the subframe n and the PUSCH on the CC2 in the subframe n +1 are sent, or the UE performs rate matching on the PUSCH overlapped with the symbols before and after the sending of the PUCCH according to the rule c) in the predefined rule 2), the PUSCH symbol overlapped with the PUCCH is reserved, then the UE performs rate matching on the PUSCH on the CC2, the first symbol of the PUSCH on the CC2 is reserved, and then the PUCCH on the CC1 in the subframe n and the PUSCH on the CC2 in the subframe n +1 are sent.

Application example 3

In the following application examples 3-1 to 3-4, the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell and CC2 is SCell. CC1 belongs to a different TA group than CC2, where CC1 belongs toTA group 1 and CC2 belongs toTA group 2.

Application example 3-1

As shown in fig. 7, in subframe n, CC1 needs to transmit PUSCH and CC2 needs to transmit SRS. Since CC1 is in a different TA than CC2, the PUSCH symbol in subframe n on CC1 overlaps the SRS symbol in subframe n on CC2 front-to-back.

At this time, if the eNB instructs the UE to simultaneously transmit the PUSCH on CC1 and the SRS on CC2 through signaling, or the UE simultaneously transmits the PUSCH on CC1 and the SRS on CC2 according to the mode a) in predefined rule 3), the UE simultaneously transmits the PUSCH on CC1 and the SRS onCC 2.

Application example 3-2

At this time, if the eNB instructs the UE to drop the PUSCH on the CC1 through signaling and only transmit the SRS on the CC2, or the UE drops the PUSCH which overlaps with the SRS by symbols before and after the occurrence of the time domain according to the predefined mode c) in rule 3, the UE drops the PUSCH on the CC1 and only transmits the SRS on theCC 2.

Application examples 3-3

At this time, if the eNB instructs the UE to drop the SRS on CC2 through signaling and only transmit the PUSCH on CC1, or the UE drops the SRS overlapping with the PUSCH symbol before and after the time domain according to the predefined rule 3), the UE drops the SRS on CC2 and only transmits the PUSCH onCC 1.

Application examples 3 to 4

As shown in fig. 8, in subframe n, CC1 needs to transmit SRS, and in subframe n +1, CC2 needs to transmit PUSCH. Since CC1 is in a different TA than CC2, the SRS symbol in subframe n on CC1 overlaps with the PUSCH symbol in subframe n +1 onCC 2.

If the eNB indicates the UE to perform rate matching on the PUSCH on the CC2 through signaling, and leaves empty symbols in the PUSCH that will overlap with the SRS of the CC1 in the front-back time domain, or the UE performs rate matching on the PUSCH symbols that will overlap with the SRS symbols in the front-back time domain according to the mode d) in the predefined rule 3), the UE performs rate matching on the PUSCH on the CC2, leaves empty the first symbol of the PUSCH on the CC2, and sends the SRS on the CC1 in the subframe n and the PUSCH on the CC2 in thesubframe n + 1.

Application example 4

In the following application examples 4-1 and 4-2, the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell and CC2 is SCell. CC1 belongs to a different TA group than CC2, where CC1 belongs toTA group 1 and CC2 belongs toTA group 2.

Application example 4-1

As shown in fig. 9, in subframe n, CC1 needs to transmit PUCCH, and CC2 needs to transmit SRS. Since CC1 is in a different TA than CC2, the PUCCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2 front-to-back.

At this time, if the eNB instructs the UE to simultaneously transmit the PUCCH on CC1 and the SRS on CC2 through signaling, or the UE simultaneously transmits the PUCCH on CC1 and the SRS on CC2 according to the mode a) in the predefined rule 4), the UE simultaneously transmits the PUCCH on CC1 and the SRS onCC 2.

Application example 4-2

At this time, the eNB instructs the UE to drop the SRS on the CC2 through signaling and only transmit the PUCCH on the CC1, or the UE drops the SRS overlapping with symbols before and after the occurrence of the PUCCH according to the method b) in the predefined rule 4), and then the UE drops the SRS on the CC2 and transmits the PUCCH on theCC 1.

Application example 5

In the following application examples 5-1 to 5-3, the UE configures three uplink carriers, which are CC1, CC2, and CC3, respectively, where CC1 is PCell, and CC2 and CC3 are scells. Where CC1 belongs toTA group 1 and CC2 and CC3 belong toTA group 2.

Application example 5-1

As shown in fig. 10, in subframe n, CC1 needs to transmit PUCCH, and both CC2 and CC3 need to transmit SRS, where CC2 is aperiodic SRS and CC3 is periodic SRS. Since CC1 has a different TA from CC2 and CC3, the PUCCH symbol in subframe n on CC1 overlaps the SRS in subframe n on CC2 and the SRS in subframe n on CC 3.

If the eNB instructs the UE to simultaneously transmit the PUCCH on CC1 and the SRS on CC2 and CC3 through signaling at this time, or the UE simultaneously transmits the SRS and the PUCCH in the manner a) in predefined rule 5), the UE simultaneously transmits the PUCCH on CC1 and the SRS on CC2 and CC 3.

Application example 5-2

At this time, if the eNB instructs the UE to drop the SRS on CC2 and CC3 through signaling, and only transmit the PUCCH on CC1, or the UE drops the SRS in the mode b) in the predefined rule 5) and only transmits the PUCCH, the UE drops the SRS on CC2 and CC3, and only transmits the PUCCH onCC 1.

Application examples 5-3

At this time, if the eNB instructs the UE to drop the periodic SRS on CC3 through signaling, and only transmit the PUCCH on CC1 and the aperiodic SRS on CC2, or the UE drops the periodic SRS and only transmits the PUCCH and the aperiodic SRS according to the mode c) in the predefined rule 5), the UE drops the periodic SRS on CC3 and transmits the PUCCH on CC1 and the aperiodic SRS onCC 2.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various other embodiments may be devised in accordance with the teachings of the present invention without departing from the spirit and scope thereof, and it should be understood that various changes and modifications may be effected therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A method for sending uplink signals is applied to a carrier aggregation system and comprises the following steps:

2. The method of claim 1, wherein:

3. The method of claim 1 or 2, wherein:

4. The method of claim 1 or 2, wherein:

5. The method of claim 1, wherein:

the trigger rule is at least one of the following rules:

6. The method of claim 5, wherein:

the sending rule includes:

7. The method of claim 6, wherein:

8. The method of claim 5, wherein:

the sending rule includes:

9. The method of claim 8, wherein:

mode 1: the user equipment simultaneously sends PUSCHs on different carriers;

10. The method of claim 5, wherein:

the sending rule includes:

11. The method of claim 10, wherein:

mode 1: the user equipment simultaneously sends PUSCHs on different carriers;

12. The method of claim 5, wherein:

the sending rule includes:

13. The method of claim 5, wherein:

the sending rule includes:

14. A user equipment, applied in a carrier aggregation system, comprises:

15. The user device of claim 14, wherein:

16. The user equipment of claim 14 or 15, wherein:

17. The user equipment of claim 14 or 15, wherein:

18. The user device of claim 14, wherein:

the trigger rule is at least one of the following rules:

19. The user equipment of claim 18, wherein:

the sending rule includes:

20. The user equipment of claim 19, wherein:

21. The user equipment of claim 18, wherein:

the sending rule includes:

22. The user equipment of claim 21, wherein:

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

23. The user equipment of claim 18, wherein:

the sending rule includes:

24. The user equipment of claim 22, wherein:

mode 1: the sending module sends PUSCHs on different carriers simultaneously;

25. The user equipment of claim 18, wherein:

the sending rule includes:

26. The user equipment of claim 18, wherein:

the sending rule includes: