CN113271628B

CN113271628B - Uplink signal transmission method, system and computer readable storage medium

Info

Publication number: CN113271628B
Application number: CN202010095461.7A
Authority: CN
Inventors: 李南希; 朱剑驰; 郭婧; 佘小明; 陈鹏
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2023-01-03
Anticipated expiration: 2040-02-17
Also published as: CN113271628A

Abstract

The disclosure provides an uplink signal transmission method, system and computer readable storage medium, and relates to the technical field of wireless communication. The disclosed uplink signal transmission method includes: selecting PUCCH resources for uplink signal transmission according to TRP, wherein the PUCCH resources are divided into a plurality of groups, the PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group; and carrying out uplink control data transmission through the selected PUCCH grouping resource. By the method, the PUCCH resources can be grouped, and the PUCCH resources which are not overlapped in time domain are adopted aiming at different TRPs, so that the time domain overlapping of uplink resources is avoided, the influence on the coverage of the PUCCH in the frequency domain is avoided, and the multi-TRP PUCCH resource scheduling in the non-cooperative joint transmission of the multi-DCI is realized.

Description

Uplink signal transmission method, system and computer readable storage medium

Technical Field

The present disclosure relates to the field of wireless communication technologies, and in particular, to an uplink signal transmission method, system, and computer-readable storage medium.

Background

Release-16 relates to the enhancement of multi-TRP in the WI of NR MIMO enhancement, wherein the enhancement comprises the enhancement of uplink and downlink control signaling; the UCI (Uplink Control Information) is carried on a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel) for transmission, and is transmitted by a UE (User Equipment) and received by a base station.

The uplink control Information may be classified into three types, SR (Scheduling Request), HARQ (Hybrid Automatic Repeat Request), ACK (acknowledgement character), and CSI (Channel State Information).

Disclosure of Invention

An object of the present disclosure is to solve a resource collision problem when a plurality of TRP (Transmission and Reception points) scheduling terminals perform PUCCH Transmission.

According to an aspect of some embodiments of the present disclosure, there is provided an uplink signal transmission method, including: selecting PUCCH resources for uplink signal transmission according to TRPs, wherein the PUCCH resources are divided into a plurality of groups, the PUCCH resources belonging to different groups do not overlap in time domain, and each TRP corresponds to one group; and carrying out uplink control data transmission through the selected PUCCH grouping resource.

In some embodiments, the PUCCH selected by the terminal for uplink data transmission according to the TRP includes: the terminal selects a first PUCCH resource according to the TRP; or the terminal selects a corresponding packet from the second type PUCCH resource according to the TRP; the PUCCH resources are divided into two types, and the first type PUCCH resources are public resources and are used by all TRPs; the second type of PUCCH resources are divided into a plurality of groups, PUCCH resources belonging to different groups do not overlap in time domain, and each TRP corresponds to one group.

In some embodiments, the number of packets is the maximum number of terminals allowed to transmit uplink in one time slot.

In some embodiments, the uplink signal transmission method further includes: and under the condition that the uplink signal transmission conflicts, if the conflicting TRPs all adopt the first type PUCCH resources to carry out the uplink signal transmission, the transmission with lower priority in the conflicting uplink signal transmission is abandoned.

In some embodiments, the uplink signal transmission method further includes: and under the condition that the uplink signal transmission conflicts, if the conflicting TRP simultaneously adopts the packets in the first type PUCCH resource and the second type PUCCH resource for uplink signal transmission, the uplink signal transmission adopting the first type PUCCH resource is abandoned.

In some embodiments, the uplink signal transmission method further includes: under the condition that the uplink transmission PUCCH resources and PUSCH resources conflict with each other: judging whether the PUSCH carries UCI or not; if the PUSCH does not carry the UCI, the transmission of the PUSCH is abandoned; and if the PUSCH carries the UCI, giving up the transmission with lower priority in the uplink signal transmission with the conflict.

By the method, the PUCCH resources can be grouped, and the PUCCH resources which are not overlapped in time domain are adopted aiming at different TRPs, so that the time domain overlapping of uplink resources is avoided, the influence on the coverage of the PUCCH on the frequency domain is avoided, and the multi-TRP PUCCH resource scheduling in the non-cooperative joint transmission of multi-DCI (Downlink Control Information) is realized.

According to an aspect of some embodiments of the present disclosure, there is provided an uplink signal transmission system including: the uplink signal transmission device comprises a PUCCH resource selection unit, a transmission unit and a transmission unit, wherein the PUCCH resource selection unit is configured to select PUCCH resources for uplink signal transmission according to TRP, the PUCCH resources are divided into multiple groups, the PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group; and the uplink control data transmission unit is configured to transmit the uplink control data through the selected PUCCH grouping resource.

In some embodiments, the PUCCH selected by the terminal for uplink data transmission according to the TRP includes: the terminal selects a first PUCCH resource according to the TRP; or the terminal selects a corresponding packet from the second type PUCCH resource according to the TRP; the PUCCH resources are divided into two types, and the first type PUCCH resources are public resources and are used by all TRPs; the second type of PUCCH resources are divided into a plurality of groups, PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group.

In some embodiments, the uplink signal transmission system further includes: a conflict resolution unit configured to perform at least one of:

under the condition that the uplink signal transmission conflicts, if the conflicting TRPs only adopt the first-class PUCCH resources to perform the uplink signal transmission, the transmission with lower priority in the conflicting uplink signal transmission is abandoned;

under the condition that the uplink signal transmission conflicts, if the conflicting TRP simultaneously adopts the packets in the first type PUCCH resource and the second type PUCCH resource for uplink signal transmission, the uplink signal transmission adopting the first type PUCCH resource is abandoned; or

Under the condition that the uplink transmission PUCCH resources and PUSCH resources conflict with each other: judging whether the PUSCH carries UCI or not; if the PUSCH does not carry the UCI, the transmission of the PUSCH is abandoned; and if the PUSCH carries the UCI, giving up the transmission with lower priority in the uplink signal transmission with the conflict.

According to an aspect of some embodiments of the present disclosure, there is provided an uplink signal transmission system including: a memory; and a processor coupled to the memory, the processor configured to perform any of the above upstream signal transmission methods based on instructions stored in the memory.

The system can group PUCCH resources and adopt the PUCCH resources which are not overlapped in time domain aiming at different TRPs, thereby avoiding the time domain overlapping of uplink resources, avoiding influencing the coverage of the PUCCH in frequency domain and realizing the multi-TRP PUCCH resource scheduling in the non-cooperative joint transmission of multi-DCI.

According to an aspect of some embodiments of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored, which instructions, when executed by a processor, implement the steps of any of the above uplink signal transmission methods.

By executing the instructions on the computer-readable storage medium, the PUCCH resources can be grouped, and PUCCH resources which are not overlapped in the time domain are adopted for different TRPs, so that time domain overlapping of uplink resources is avoided, PUCCH coverage is prevented from being affected in the frequency domain, and multi-TRP PUCCH resource scheduling in non-cooperative joint transmission of multiple DCIs is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a flow chart of some embodiments of an uplink signal transmission method of the present disclosure.

Fig. 2A is a schematic diagram of a resource partitioning method in the uplink signal transmission method of the present disclosure.

Fig. 2B is a schematic diagram of another resource partitioning method in the uplink signal transmission method of the present disclosure.

Fig. 3 is a flowchart of another embodiment of an uplink signal transmission method according to the present disclosure.

Fig. 4 is a schematic diagram of some embodiments of an uplink signal transmission system of the present disclosure.

Fig. 5 is a schematic diagram of other embodiments of an uplink signal transmission system according to the present disclosure.

Fig. 6 is a schematic diagram of further embodiments of an uplink signal transmission system according to the present disclosure.

Detailed Description

The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.

A flow diagram of some embodiments of an uplink signal transmission method of the present disclosure is shown in fig. 1.

In step 101, PUCCH resources for uplink signal transmission are selected according to TRP, where the PUCCH resources are divided into multiple groups, PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group. The number of packets is the maximum number of uplink transmissions allowed by the terminal in a time slot. In some embodiments, the PUCCH resources may be grouped and allocated to the TRP by the network side, so that the terminal may transmit using the allocated resources.

In step 102, the terminal performs uplink control data transmission through the selected PUCCH packet resource.

By the method, the PUCCH resources can be grouped, and the PUCCH resources which are not overlapped in time domain are adopted aiming at different TRPs, so that the time domain overlapping of uplink resources is avoided, the influence on the coverage of the PUCCH on the frequency domain is avoided, and the multi-TRP PUCCH resource scheduling in the non-cooperative joint transmission of multi-DCI is realized.

In some embodiments, the grouping method of PUCCH resources may be as shown in fig. 2A.

In step 201, all PUCCH resources are divided into N groups: { g ₁ },{g ₂ },…,{g _N }. Wherein, N is a positive integer and is the maximum value of the number of uplink transmissions allowed by the UE in one timeslot.

In some embodiments, PUCCH resources belonging to different groups are marked with different packet indexes, that is, in addition to the ID number of the PUCCH resource itself, the packet index is also a parameter of the PUCCH resource, for example: belong to the branchGroup { g _j PUCCH resource of } marked with a packet index j, where j =0,1,2 ….

In some embodiments, there is no overlap in the time domain of PUCCH resources belonging to different packets, and PUCCH resources belonging to the same packet do not have this limitation, for example: PUCCH _ Resource _1 and PUCCH _ Resource _2 belong to { g } ₀ The PUCCH _ Resource _3 belongs to { g } ₁ And there is no overlapping part between PUCCH _ Resource _1 or PUCCH _ Resource _2 and PUCCH _ Resource _3 in the time domain.

In step 202, the network side determines PUCCH resources that can be scheduled by each TRP according to the grouping scheme. PUCCH resources belonging to different packets are allocated to corresponding TRPs, for example: will { g ₀ The PUCCH resource in the { C } is divided into the first TRP, and { g is divided into ₁ The PUCCH resource in the } is allocated to the second TRP.

Further, the terminal performs uplink transmission according to the PUCCH scheduled by the TRP.

Non-cooperative joint transmission of 2 TRPs (TRP #1 and TRP # 2) is exemplified. In the manner described above in the embodiment shown in fig. 2A:

in step 1: all PUCCH resources are divided into 2 groups: { g ₀ },{g ₁ }. Wherein { g ₀ Each PUCCH resource in the same with { g } ₁ Each PUCCH resource in the data transmission has no overlapping part in the time domain; in addition, { g } ₀ Setting the grouping index of the PUCCH resource in the same as 0; { g) ₁ Setting the grouping index of the PUCCH resource in the } to be 1;

in step 2, the network side will { g } ₀ Allocate PUCCH resources in { G } to TRP #1, and allocate { G } to TRP #1 ₁ Allocating PUCCH resources in the} to TRP #2;

in step 3: and the UE carries out uplink transmission according to the PUCCHs scheduled by different TRPs.

By the method, due to the fact that time domain overlapping does not exist between PUCCH resources of different groups, uplink signals of different TRPs can be ensured not to be overlapped, and transmission reliability is improved.

In other embodiments, the PUCCH resources may be divided as shown in fig. 2B.

In step 211, all PUCCH resources are classified into 2 types, i.e., intoExclusive set

Representation, belonging to a collection

The PUCCH resource in the TRP is a public resource and can be used for carrying out resource scheduling on all TRPs; belong to a set

The PUCCH resource in (3) is a designated resource, and resource scheduling can be performed only by a specific TRP.

In step 212, the collection is performed

The PUCCH resources in (1) are divided into M groups: { s ₁ },{s ₂ },…,{s _N }. Wherein, N is a positive integer and is the maximum value of the number of uplink transmissions allowed by the UE in one timeslot.

In some embodiments, PUCCH resources belonging to different groups are marked with different indexes, and for convenience of description, the index is referred to as a packet index, that is, in addition to an ID number of the PUCCH resource itself, the packet index is also a parameter of the PUCCH resource, for example: belong to a set

The PUCCH resources are marked by a grouping index 0; belonging to a group s _k } PUCCH resource marked with packet index k, where k =1,2,3 ….

In some embodiments, belong to

There is no overlap in the time domain of PUCCH resources between different subgroups, and PUCCH resources belonging to the same subgroup do not have this limitation, for example: PUCCH _ Resource _1 and PUCCH _ Resource _2 belong to { s } ₁ }，PUCCH _ Resource _3 belongs to s ₂ And there is no overlapping part between PUCCH _ Resource _1 or PUCCH _ Resource _2 and PUCCH _ Resource _3 in the time domain.

In step 213, on the network side, the pair belongs to

The PUCCH resources belonging to different subgroups are allocated to corresponding TRPs, for example: will { s } ₁ The PUCCH resource in the TRP is divided into the first TRP, and s is divided into ₂ Allocating PUCCH resources in the transmission to a second TRP; to pair belong to

The PUCCH resource of (2) may be used for each TRP. Therefore, the PUCCH resource allocation situation for the TRP by the network side may include at least one of selecting a first type of PUCCH resource for the TRP and selecting a corresponding packet from a second type of PUCCH resource for the TRP.

Non-cooperative joint transmission of 2 TRPs (TRP #1 and TRP # 2) is exemplified. In the manner described above in the embodiment shown in fig. 2B:

in step 1: firstly, all PUCCH resources are divided into 2 types which are respectively aggregated

And (4) showing.

In step 2, the collection is carried out

The PUCCH resources in (3) are divided into 2 groups: { s ₁ },{s ₂ }. Wherein { s ₁ Each PUCCH resource in with s ₂ There is no overlapping part of each PUCCH resource in time domain, { s } ₁ And { s } ₂ PUCCH resource in and

the PUCCH resources in (a) may overlap in the presence of a time domain; in addition, will

The packet index of the PUCCH resource in (3) is set to 0; { s ₁ The packet index of the PUCCH resource in the } is set to 1; { s ₂ The packet index of the PUCCH resource in (h) is set to 2.

In step 3: network side will { s ₁ Allocate PUCCH resource in TRP #1, and allocate s ₂ The PUCCH resources in (j) are allocated to TRP #2. In addition to this, TRP #1 and TRP #2 can be used

PUCCH resource(s).

In step 4: and the UE carries out uplink transmission according to PUCCHs scheduled by different TRPs, and if uplink transmission conflicts occur, the UE abandons the transmission of corresponding information according to the abandon principle defined by the foregoing.

Through the method, the PUCCH resources can be divided into a public resource and a designated resource, on one hand, the conflict is avoided through grouping of the designated resources, and the probability and the reliability of successful transmission are improved; on the other hand, public resources are also provided, and the flexibility of transmission is improved.

In some embodiments, in the manner as described above in the embodiment shown in fig. 2A, since no overlap occurs between different packets, no collision occurs in uplink control data transmission using PUCCH. For example, assume that the uplink resource scheduled by TRP #1 is

The uplink resource scheduled by TRP #2 is

Due to the fact that

And

belong toCo-grouping and thus no collision occurs.

In other embodiments, in the manner as in the embodiment shown in fig. 2B, since the first type PUCCH resources are common resources, collision may occur. For example, assume that the uplink resource scheduled by TRP #1 is

The uplink resource scheduled by TRP #2 is

Then:

①

and

no conflict occurs;

②(

and

) Or (a)

And

) There may be conflicts between these two combinations;

③

and

collisions may occur.

To cope with the situation where the collision occurs, the terminal may perform different processing for the collision. A flow chart of further embodiments of the uplink signal transmission method of the present disclosure is shown in fig. 3.

In step 301, a PUCCH resource for uplink signal transmission is selected according to the TRP.

In step 302, uplink control data transmission is performed through the selected PUCCH packet resource.

In step 303, it is determined whether a PUCCH resource collision has occurred.

If a conflict occurs and the conflicting TRPs all adopt only the first PUCCH resource for uplink signal transmission, go to step 304;

if a collision occurs and the collided TRPs simultaneously use the packets in the first type PUCCH resource and the second type PUCCH resource for uplink signal transmission, step 305 is executed.

If no conflict occurs, go to step 306.

In step 304, the lower priority transmission of the conflicting upstream signal transmissions is dropped.

In step 305, uplink signal transmission using the first type PUCCH resource is abandoned.

In step 306, it is determined whether the PUCCH resource for uplink transmission and the PUSCH resource conflict. If yes, go to step 307; if no conflict occurs, the normal transmission operation is executed.

In step 307, it is determined whether the PUSCH carries UCI. If the PUSCH does not carry the UCI, it indicates that the PUSCH does not carry the control information, and the PUSCH performs data transmission, and performs step 308; if the PUSCH carries UCI, it indicates that the PUSCH performs control information transmission, and step 309 is performed.

In step 308, transmission of the PUSCH is abandoned.

In step 309, the lower priority transmission of the conflicting upstream signal transmissions is dropped.

The method provides a PUCCH resource allocation scheme based on the non-cooperative joint transmission of the multi-DCI, solves the PUCCH resource conflict, and particularly solves the problem that the resource conflict of the UE when different TRPs feed back HARQ is effectively avoided in the grouping mode for the HARQ transmission of the HAQR-ACK with higher priority, and the problem that an effective PUCCH conflict solution method for simultaneously scheduling the same UE to perform uplink transmission by a plurality of TRPs is lacked in the non-cooperative joint transmission based on the multi-TRP multi-DCI in the related technology.

A schematic diagram of some embodiments of an uplink signal transmission system of the present disclosure is shown in fig. 4.

The PUCCH resource selecting unit 401 may select PUCCH resources for uplink signal transmission according to TRP, where the PUCCH resources are divided into multiple groups, PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group. The number of packets is the maximum number of uplink transmissions allowed by the terminal in a time slot.

The uplink control data transmission unit 402 performs uplink control data transmission using the selected PUCCH packet resource.

In some embodiments, the uplink signal transmission system may further include a collision resolution unit 403.

When the uplink signal transmission is in conflict, if all the conflicting TRPs perform uplink signal transmission by using only the first PUCCH resource, for example, the uplink resource scheduled by TRP #1 is assumed to be

The uplink resource scheduled by TRP #2 is

And

a collision may occur and the collision resolution unit 403 abandons the lower priority transmission of the colliding upstream signal transmissions.

Under the condition that the uplink signal transmission conflicts, if the conflicting TRP simultaneously adopts the first type PUCCH resource and the second type PUCCH resourceGrouping uplink signal transmission, for example, suppose that the uplink resource scheduled by TRP #1 is

The uplink resource scheduled by TRP #2 is

Then (1)

And

) Or (a)

And

) There may be a conflict between the two combinations, and the conflict resolution unit 403 abandons the uplink signal transmission using the first type PUCCH resource.

The system provides a PUCCH resource allocation scheme based on non-cooperative joint transmission of multi-DCI, solves PUCCH resource conflict, and can effectively avoid resource conflict when different TRPs (physical uplink control channel) feed back HARQ (hybrid automatic repeat request) of UE (user equipment) by grouping the HARQ resource conflict, especially for the HARQ-ACK transmission with higher priority.

A schematic structural diagram of an embodiment of the uplink signal transmission system of the present disclosure is shown in fig. 5. The uplink signal transmission system includes a memory 501 and a processor 502. Wherein: the memory 501 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing the instructions in the corresponding embodiments of the uplink signal transmission method above. The processor 502 is coupled to the memory 501 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 502 is configured to execute the instructions stored in the memory, so as to avoid time-domain overlapping of uplink resources and avoid affecting PUCCH coverage in a frequency domain.

In one embodiment, as also shown in fig. 6, the uplink signal transmission system 600 includes a memory 601 and a processor 602. The processor 602 is coupled to the memory 601 by a BUS 603. The upstream signal transmission system 600 can also be coupled to an external storage 605 via a storage interface 604 for invoking external data, and can also be coupled to a network or another computer system (not shown) via a network interface 606. And will not be described in detail herein.

In this embodiment, the data instruction is stored in the memory, and the processor processes the instruction, so that time domain overlapping of uplink resources can be avoided, and the effect on PUCCH coverage in the frequency domain can be avoided.

In another embodiment, a computer-readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the uplink signal transmission method. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.

Claims

1. An uplink signal transmission method, comprising:

selecting uplink control channel (PUCCH) resources for uplink signal transmission according to the sending and receiving points (TRP), wherein the PUCCH resources are divided into a plurality of groups, the PUCCH resources belonging to different groups do not overlap in a time domain, each TRP corresponds to one group, and the number of the groups is the maximum value of the number of uplink transmissions allowed by a terminal in one time slot;

and carrying out uplink control data transmission through the selected PUCCH grouping resource.

2. The method of claim 1, wherein the selecting the PUCCH for uplink data transmission according to the TRP comprises at least one of selecting a first type of PUCCH resource for the TRP or selecting a corresponding packet from a second type of PUCCH resource for the TRP;

the PUCCH resources are divided into two types, and the first type PUCCH resources are public resources and are used by all TRPs; the second type of PUCCH resources are divided into a plurality of groups, PUCCH resources belonging to different groups do not overlap in a time domain, and each TRP corresponds to one group.

3. The method of claim 2, further comprising:

and under the condition that the uplink signal transmission is in conflict, if all the TRPs in conflict adopt the first-class PUCCH resources to carry out the uplink signal transmission, the transmission with lower priority in the uplink signal transmission in conflict is abandoned.

4. The method of claim 2, further comprising:

and under the condition that the uplink signal transmission conflicts, if the conflicting TRP simultaneously adopts the packets in the first type PUCCH resource and the second type PUCCH resource for uplink signal transmission, the uplink signal transmission adopting the first type PUCCH resource is abandoned.

5. The method of claim 1, further comprising:

under the condition that the uplink transmission PUCCH resources and the uplink data channel PUSCH resources conflict with each other:

judging whether the PUSCH carries uplink control information UCI or not;

if the PUSCH does not carry the UCI, the transmission of the PUSCH is abandoned;

and if the PUSCH carries the UCI, giving up the transmission with lower priority in the uplink signal transmission with the conflict.

6. An uplink signal transmission system comprising:

the uplink control channel (PUCCH) resource selection unit is configured to select PUCCH resources for uplink signal transmission according to the sending and receiving points (TRP), wherein the PUCCH resources are divided into a plurality of groups, the PUCCH resources belonging to different groups do not overlap in a time domain, each TRP corresponds to one group, and the number of the groups is the maximum value of the number of uplink transmissions allowed by a terminal in one time slot;

and a transmission unit configured to perform uplink control data transmission through the selected PUCCH packet resource.

7. The system according to claim 6, wherein the PUCCH resource selection unit is configured to perform at least one of selection of a first type PUCCH resource for TRP or selection of a corresponding packet from a second type PUCCH resource for TRP;

8. The system of claim 7, further comprising: a conflict resolution unit configured to perform at least one of:

under the condition that the uplink signal transmission is in conflict, if the TRP in conflict simultaneously adopts the packets in the first-class PUCCH resource and the second-class PUCCH resource to carry out the uplink signal transmission, the uplink signal transmission adopting the first-class PUCCH resource is abandoned; or

Under the condition that the PUCCH resource of the uplink transmission conflicts with the PUSCH resource of the uplink data channel: judging whether the PUSCH carries uplink control information UCI or not; if the PUSCH does not carry the UCI, the transmission of the PUSCH is abandoned; and if the PUSCH carries the UCI, giving up the transmission with lower priority in the uplink signal transmission with the conflict.

9. An uplink signal transmission system comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 1-5 based on instructions stored in the memory.

10. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 5.