CN117640038A

CN117640038A - Channel state information transmission method and related device

Info

Publication number: CN117640038A
Application number: CN202210971932.5A
Authority: CN
Inventors: 杨培; 李铁; 余政; 刘江华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2024-03-01
Also published as: WO2024032198A1

Abstract

The application provides a transmission method of channel state information and a related device, which can avoid the problem of resource waste caused by the fact that network equipment does not need CSI reported by terminal equipment. The method comprises the following steps: the terminal equipment sends first indication information for indicating a first CMR set determined by the terminal equipment to the network equipment; the network equipment determines whether to configure CMR for the terminal equipment based on the received first indication information; and under the condition that the CMR is not required to be configured for the terminal equipment, the terminal equipment sends CSI corresponding to the first CMR set to the network equipment, or under the condition that the CMR is required to be configured for the terminal equipment, the network equipment sends first configuration information to the terminal equipment, the first configuration information is used for indicating a second CMR set, the second CMR set comprises the CMR configured for the terminal equipment by the network equipment, and the terminal equipment sends the CSI corresponding to the second CMR set to the network equipment based on the received first configuration information.

Description

Channel state information transmission method and related device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting channel state information.

Background

The network device may employ coherent joint transmission (coherent joint transmission, CJT) when communicating with the terminal device, i.e. the network device transmits the same data stream to the terminal device via different transmission reception points (transmission reception point, TRP). At cqt, edge user spectral efficiency and cell average throughput may be significantly increased.

In general, in a multi-TRP scenario, the terminal device needs to perform channel state information (channel state information, CSI) measurement reporting, i.e. the terminal device reports the determined TRP set and the corresponding CSI to the network device. But when CSI is reported, a large resource overhead is required. In some cases, however, the network device may not need to use CSI reported by the terminal device, which may cause significant resource waste.

Disclosure of Invention

The application provides a transmission method of channel state information and a related device, so as to reduce resource waste.

In a first aspect, a method for transmitting channel state information is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component (such as a chip, a chip system, etc.) configured in the terminal device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application.

Illustratively, the method includes: transmitting first indication information for indicating a first set of channel measurement resources (channel measurement resource, CMR) determined by the terminal device; transmitting CSI corresponding to the first CMR set to the network device if no first configuration information is received in a preset period, or transmitting CSI corresponding to the second CMR set to the network device if the first configuration information is received in the preset period, wherein the first configuration information is used for configuring the second CMR set, the second CMR set includes CMRs configured by the network device for the terminal device, and the CSI includes at least one of the following information: precoding Matrix Indicator (PMI) information, channel quality indicator (channel quality indicator, CQI) information, rank Indicator (RI) information, or Layer Indicator (LI) information.

Based on the method, the terminal equipment firstly sends the determined first CMR set to the network equipment, so that the network equipment determines whether to allow the terminal equipment to report the CSI corresponding to the first CMR set based on the received first CMR set, and the terminal equipment can determine whether to report the CSI corresponding to the first CMR set according to the requirement of the network equipment. By separately reporting the first CMR set determined by the terminal equipment and the CSI, unnecessary resource expenditure caused by reporting the CSI can be avoided and resource waste can be reduced when the network equipment does not need to use the first CMR set determined by the terminal equipment.

In another implementation, the network device may indicate by signaling (e.g., denoted as first signaling) whether the terminal device is allowed to send CSI corresponding to the first CMR set. In this way, the terminal device may determine whether to report CSI corresponding to the first CMR set to the network device according to the received first signaling.

Illustratively, the method includes: transmitting first indication information, wherein the first indication information is used for indicating a first CMR set determined by the terminal equipment; receiving a first signaling, wherein the first signaling is used for indicating whether the network equipment allows the terminal equipment to send the CSI corresponding to the first CMR set; transmitting CSI corresponding to a first CMR set under the condition that a first signaling indication network device allows a terminal device to transmit the CMR corresponding to the first CMR set; under the condition that the first signaling indicates that the network equipment does not allow the terminal equipment to send CMRs corresponding to the first CMR set, the network equipment is based on the received first configuration information; and sending the CSI corresponding to the second CMR set, wherein the first configuration information is used for configuring the second CMR set for the terminal equipment.

Further, before sending the CSI corresponding to the second CMR set, the method further includes: and receiving the first configuration information.

Based on the method, the terminal equipment firstly sends the determined first CMR set to the network equipment, so that the network equipment determines whether to allow the terminal equipment to report the CSI corresponding to the first CMR set based on the received first CMR set, and the terminal equipment can determine whether to report the CSI corresponding to the first CMR set according to the first signaling. By separately reporting the first CMR set determined by the terminal equipment and the CSI, unnecessary resource expenditure caused by reporting the CSI can be avoided and resource waste can be reduced when the network equipment does not need to use the first CMR set determined by the terminal equipment.

The first signaling may include an indication bit of 1 bit (bit), for example, the indication bit being "1" indicates that the network device allows the terminal device to transmit CSI corresponding to the first CMR set, and the indication bit being "0" indicates that the network device does not allow the terminal device to transmit CSI corresponding to the first CMR set; or, the indication bit of "0" indicates that the network device allows the terminal device to send CSI corresponding to the first CMR set, and the indication bit of "1" indicates that the network device does not allow the terminal device to send CSI corresponding to the first CMR set.

With reference to the first aspect, in certain implementation manners of the first aspect, before the sending the first indication information, the method further includes: and receiving second configuration information, wherein the second configuration information is used for configuring N CMRs for the terminal equipment, the CMRs in the first CMR set are from the N CMRs, and N is a positive integer.

The terminal equipment can determine the number of CMRs in the first CMR set based on the value of M indicated by the second indication information, so that the frequency of the terminal equipment for traversing the CMR to perform CSI measurement is effectively reduced, and the processing complexity of the terminal equipment is reduced.

With reference to the first aspect, in certain implementation manners of the first aspect, before the sending the first indication information, the method further includes: and receiving second indicating information, wherein the second indicating information is used for indicating the number M of CMRs included in the first CMR set, M is a positive integer, and M is less than or equal to N.

The terminal equipment can determine the first CMR set based on N CMRs configured by the second configuration information, so that the frequency of the terminal equipment traversing the CMRs to perform CSI measurement is effectively reduced, and the processing complexity of the terminal equipment is reduced.

One possible design is that the N CMRs may correspond to N transmission and reception points (transmission reception point, TRP), one TRP associated with each CMR. Therefore, the above-described second configuration information can also be understood as being used for configuring N TRPs for the terminal device.

With reference to the first aspect, in certain implementation manners of the first aspect, after the receiving the second indication information, the method further includes: receiving third indication information, wherein the third indication information is used for indicating the terminal equipment to determine P CMRs from the N CMRs; and selecting Q CMRs from the remaining CMRs except the P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+Q=M.

With reference to the first aspect, in certain implementation manners of the first aspect, before the sending the first indication information, the method further includes: and receiving second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the terminal equipment, M is a positive integer, and M is less than or equal to N.

With reference to the first aspect, in certain implementations of the first aspect, the first set of CMRs includes Q CMRs therein; after the receiving the second indication information, the method further comprises: receiving third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs; and selecting M CMRs from the remaining CMRs except the P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+M=Q.

The terminal equipment can determine the first CMR set based on the received third indication information, so that the terminal equipment can reduce the times of traversing the CMR to carry out CSI measurement, reduce the processing complexity of the terminal equipment, and increase the probability that the network equipment uses the CMR set reported by the terminal equipment for CJT, thereby effectively avoiding the waste of resources.

In a second aspect, a method for transmitting channel state information is provided, where the method may be applied to a network device, and may be performed by the network device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the network device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the network device, which is not limited in this application.

Illustratively, the method includes: receiving first indication information, wherein the first indication information is used for indicating a first CMR set determined by terminal equipment; determining whether to configure a CMR for the terminal device; and in the case that the CMR needs to be configured for the terminal equipment, sending first configuration information, wherein the first configuration information is used for indicating a second CMR set, and the second CMR set comprises CMRs configured for the terminal equipment by the network equipment.

Based on the method, the network device determines whether to configure the CMR for the terminal device based on the received first indication information and the self requirement, so that the terminal device can determine whether to report the CSI corresponding to the first CMR set. By separately reporting the first CMR set determined by the terminal equipment and the CSI, unnecessary resource expenditure caused by reporting the CSI can be avoided and resource waste can be reduced when the network equipment does not need to use the first CMR set determined by the terminal equipment.

Illustratively, the method includes: receiving first indication information, wherein the first indication information is used for indicating a first CMR set determined by the terminal equipment; determining whether to configure a CMR for the terminal device; transmitting a first signaling, wherein the first signaling is used for indicating whether the network equipment allows the terminal equipment to transmit CSI corresponding to the first CMR set; and under the condition that the CMR needs to be configured for the terminal equipment, transmitting CSI corresponding to the second CMR set based on the received first configuration information, wherein the first configuration information is used for configuring the second CMR set for the terminal equipment.

It should be understood that the first signaling is used to indicate whether the network device allows the terminal device to send CSI corresponding to the first CMR set, that is, the first signaling is used to indicate whether the network device reconfigures the CMR for the terminal device. For example, when the first signaling indicates that the network device allows the terminal device to send CSI corresponding to the first CMR set, the first signaling may be referred to as Acknowledgement (ACK) information; the first signaling may be referred to as negative acknowledgement (negative acknowledge, NACK) information when the first signaling indicates that the network device does not allow the terminal device to transmit CSI corresponding to the first CMR set.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and receiving the CSI from the terminal equipment, wherein the CSI corresponds to the CMR.

CSI corresponds to CMR including the following two cases:

1. and the network equipment does not send the first configuration information under the condition that the network equipment determines that the CMR is not required to be configured for the terminal equipment, and the CSI corresponds to the first CMR set.

2. And the network equipment sends the first configuration information under the condition that the CMR needs to be configured for the terminal equipment, and the CSI corresponds to the second CMR set.

With reference to the second aspect, in certain implementations of the second aspect, before the receiving the first indication information, the method further includes: and sending second configuration information, wherein the second configuration information is used for configuring N CMRs for the terminal equipment, the CMRs in the first CMR set are from the N CMRs, and N is a positive integer.

Based on the scheme, the network equipment reduces the possibility of selectable CMRs of the terminal equipment and reduces the processing complexity of the terminal equipment by sending the second configuration information for configuring N CMRs.

With reference to the second aspect, in certain implementations of the second aspect, before the receiving the first indication information, the method further includes: and sending second indicating information, wherein the second indicating information is used for indicating the number M of CMRs included in the first CMR set, M is a positive integer, and M is less than or equal to N.

Based on the scheme, the network equipment can reduce the times of traversing the CMR to carry out CSI measurement by sending the second indication information for indicating the number M of the CMRs included in the first CMR set, so that the processing complexity of the terminal equipment is reduced.

With reference to the second aspect, in certain implementations of the second aspect, after the sending the second configuration information, the method further includes: and sending third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, and the P CMRs belong to the first CMR set, and P is a positive integer.

With reference to the second aspect, in certain implementations of the second aspect, before the sending the first indication information, the method further includes: and sending second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the terminal equipment, M is a positive integer, and M is less than or equal to N.

With reference to the second aspect, in certain implementations of the second aspect, the first set of CMRs includes Q CMRs therein; before the sending the second indication information, the method further comprises: and sending third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, the P CMRs belong to the first CMR set, P is a positive integer, and P+M=Q.

Based on the scheme, the network equipment indicates the self-determined CMR through the third indication information, so that the probability of the network equipment using the CMR set reported by the terminal equipment can be improved, and meanwhile, the waste of resources can be avoided.

With reference to the first aspect and the second aspect, in certain implementation manners of the first aspect and the second aspect, the first indication information is carried in a bitmap, N bits in the bitmap are in one-to-one correspondence with the N CMRs, and each bit is used for indicating whether the corresponding CMR is used by the terminal device to determine CSI; or, the first indication information includes an index corresponding to the first CMR set, where the index is determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between at least one CMR set and at least one index.

With reference to the first aspect and the second aspect, in certain implementation manners of the first aspect and the second aspect, the first indication information includes indication information CRI of reference signal resources of M channel state information corresponding to the M CMRs one to one.

With reference to the first aspect and the second aspect, in certain implementation manners of the first aspect and the second aspect, the first indication information includes Q CRIs that are in one-to-one correspondence with the Q CMRs.

The first indication information in the application can reduce the resource overhead of reporting the first CMR set through the bitmap or the index.

In a third aspect, a method for transmitting channel state information is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component (such as a chip, a chip system, etc.) configured in the terminal device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application.

Illustratively, the method includes: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; receiving second information, wherein the second information is used for indicating the number M of CMRs selected by the terminal equipment from the N CMRs, M is a positive integer, and M is less than or equal to N; transmitting a CSI report, wherein the CSI report comprises CSI and/or CMR indication information, the CMR indication information is used for indicating one CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises at least one of the following information: PMI, CQI, RI or LI.

It should be appreciated that the CMR selected from the N CMRs described above is used for CJT, or alternatively, for CSI measurement reporting.

Based on the scheme, the terminal equipment can select M CMRs to report corresponding CSI based on the first information, the second information and the measurement results of the terminal equipment, so that the network equipment and the terminal equipment have a certain selection space, and the terminal equipment can select M CMRs at most in the N CMRs when selecting the CMRs. That is, the CMR to be reported can be determined by traversing the C (N, M) combinations at most. The processing complexity of the terminal equipment is effectively reduced, and the processing capability requirement on the terminal equipment is lower.

With reference to the third aspect, in certain implementations of the third aspect, the one CMR set includes M CMRs; before the sending CSI report, the method further includes: receiving third information, wherein the third information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, and the P CMRs belong to the CMR set; based on the third information, Q CMRs are selected from remaining CMRs of the N CMRs other than the P CMRs, wherein P sum is a positive integer, and p+q=m.

When the terminal equipment receives the third information, the times of performing the CSI measurement by traversing the CMR can be further reduced, and the processing complexity of the terminal equipment is reduced.

With reference to the third aspect, in certain implementations of the third aspect, the one CMR set includes M CMRs; before the sending CSI report, the method further includes: receiving third information, wherein the third information is used for indicating P CMRs determined by the terminal equipment from the N CMRs; and selecting M CMRs from the rest CMRs except the P CMRs in the N CMRs based on the third information, wherein P is a positive integer, and P+M is less than or equal to N.

In a fourth aspect, a method for transmitting channel state information is provided, where the method may be applied to a network device, and may be performed by the network device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the network device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the network device, which is not limited in this application.

Illustratively, the method includes: transmitting first information, wherein the first information is used for indicating N CMRs configured for terminal equipment, and N is a positive integer; transmitting second information, wherein the second information is used for indicating the number M of CMRs selected by the terminal equipment from the N CMRs, M is a positive integer, and M is less than or equal to N; receiving a CSI report, wherein the CSI report comprises CSI and/or CMR indication information, the CMR indication information is used for indicating one CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises at least one of the following information: PMI, CQI, RI or LI.

Based on the scheme, the network equipment sends the second information to the terminal equipment, so that the terminal equipment can select M CMRs for the CJT based on the second information and the measurement result of the terminal equipment, the network equipment and the terminal equipment have certain selection space, and meanwhile, when the terminal equipment selects the CMR for the CJT, the terminal equipment can select M CMRs at most in N CMRs, namely, the CMR set can be determined by traversing C (N, M) combinations at most, the processing complexity of the terminal equipment is effectively reduced, and the processing capacity requirement on the terminal equipment is lower.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the one CMR set includes M CMRs; the method further comprises the steps of: and sending third information, wherein the third information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, and the P CMRs belong to the CMR set, and P is a positive integer.

The network device indicates the self-determined CMR through the third information, so that the probability of the network device using the CMR set reported by the terminal device can be improved, and meanwhile, the waste of resources can be avoided.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the one CMR set includes M CMRs; before the sending CSI report, the method further includes: and sending third information, wherein the third information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, and the P CMRs do not belong to the CMR set, wherein P is a positive integer, and P+M is less than or equal to N.

With reference to the third aspect and the fourth aspect, in some implementations of the third aspect and the fourth aspect, the CMR indication information is carried in a bitmap, N bits in the bitmap are in one-to-one correspondence with the N CMRs, and each bit is used to indicate whether the corresponding CMR is used by the terminal device to determine CSI reports.

With reference to the third aspect and the fourth aspect, in some implementations of the third aspect and the fourth aspect, the CMR indication information is carried in a bitmap, N-P bits in the bitmap are in one-to-one correspondence with the N-P CMRs, and each bit is used to indicate whether the corresponding CMR is used by the terminal device to determine CSI reporting.

With reference to the third aspect and the fourth aspect, in certain implementation manners of the third aspect and the fourth aspect, the CMR indication information is M CRIs that are in one-to-one correspondence with the M CMRs.

With reference to the third aspect and the fourth aspect, in some implementations of the third aspect and the fourth aspect, the CMR indication information is an index corresponding to the one CMR set, the index is determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between at least one CMR set and at least one index.

With reference to the third aspect and the fourth aspect, in certain implementations of the third aspect and the fourth aspect, the CSI includes the PMI, and a number of non-zero coefficients in the PMI is greater than 0.

The CMR indication information in the application can be any one of a bitmap and an index, so that the resource overhead for reporting the CMR set can be reduced.

In a fifth aspect, a method for transmitting channel state information is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the terminal device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application.

Illustratively, the method includes: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; receiving second information, wherein the second information is used for indicating L values of the number of CMRs selected by the terminal equipment from the N CMRs, L is an integer greater than 1, and L is less than or equal to N; receiving third information indicating The quantity of CSI to be reported corresponding to each value of the L values is Ki, mi, ki and i are positive integers, and K is the quantity of CSI to be reported corresponding to the ith value Mi of the L values _i ≤C(N,M _i ) I is more than or equal to 1 and less than or equal to K; transmitting a CSI report comprisingIndividual CSI and/or->And CMR indication information, wherein the CMR indication information is used for indicating a CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises one or more of PMI, CQI, RI or LI.

The above C (N, M) _i ) The number of combinations that can be selected when Mi CMRs are selected from the N CMRs is represented.

In the application, the terminal equipment receives L values from the network equipment and the quantity of the CSI reported under each value, so that the quantity of the CSI processed by the terminal equipment at the same time can be reduced, the processing complexity of the terminal equipment is reduced, and the processing capability requirement of the terminal equipment is not high.

With reference to the fifth aspect, in certain implementations of the fifth aspect,kr is the number of CSI measurement hypotheses reported by the terminal equipment; before the receiving the third information, the method further comprises: and sending the number Kr of the CSI measurement hypotheses reported by the terminal equipment.

With reference to the fifth aspect, in some implementations of the fifth aspect, ki is less than or equal to Ky, where Ky is the number of reported CSI measurement hypotheses determined by the terminal device under each value; before the receiving the third information, the method further comprises: and sending the number Ky of reporting CSI measurement hypotheses determined by the terminal equipment under each value.

In a sixth aspect, a method for transmitting channel state information is provided, where the method may be applied to a network device, and may be performed by the network device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the network device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the network device, which is not limited in this application.

Illustratively, the method includes: transmitting first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; transmitting second information, wherein the second information is used for indicating L values of the number of CMRs selected by the terminal equipment from the N CMRs, L is an integer greater than 1, and L is less than or equal to N; transmitting third information, wherein the third information indicates the quantity of CSI to be reported corresponding to each value of the L values, the quantity of CSI to be reported corresponding to the ith value Mi of the L values is Ki, mi, ki and i are positive integers, and K _i ≤C(N，M _i ) I is more than or equal to 1 and less than or equal to K; receiving a CSI report, the CSI report comprisingIndividual CSI and/or->And CMR indication information, wherein the CMR indication information is used for indicating a CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises one or more of PMI, CQI, RI or LI.

In the application, the network device sends L values and the quantity of the reported CSI under each value to the terminal device, so that the terminal device can determine the quantity of the reported CSI based on the received information, the quantity of the CSI reported by the terminal device at one time can be reduced, and the processing capability requirement on the terminal device is not high.

With reference to the sixth aspect, in certain implementations of the sixth aspect,kr is the number of CSI measurement hypotheses reported by the terminal equipment; before the sending the third information, the method further comprises: receiving the terminalThe end device reports the number Kr of CSI measurement hypotheses.

With reference to the sixth aspect, in certain implementations of the sixth aspect, K _i Ky is less than or equal to Ky, wherein Ky is the number of reporting CSI measurement hypotheses determined by the terminal equipment under each value; before the sending the third information, the method further comprises: and receiving the number Ky of reporting CSI measurement hypotheses determined by the terminal equipment under each value.

With reference to the fifth and sixth aspects, in certain implementations of the fifth and sixth aspects, theThe CMR indication information is carried in->And each group of bits comprises N bits corresponding to the N CMRs one by one, and the value of each bit is used for indicating whether the corresponding CMR is used by the terminal equipment for determining the CSI report.

With reference to the fifth and sixth aspects, in certain implementations of the fifth and sixth aspects, theThe CMR indication information is equal to said +.>The CMR sets have one-to-one indexes, and the indexes are determined according to a predefined mapping relation, wherein the mapping relation is used for indicating the one-to-one correspondence between at least one CMR set and at least one index.

With reference to the fifth and sixth aspects, in certain implementations of the fifth and sixth aspects, theThe CMR indication information is equal to said +.>The CMR sets are in one-to-one correspondence>A set of CRIs.

With reference to the fifth aspect and the sixth aspect, in certain implementations of the fifth aspect and the sixth aspect, the CSI includes a PMI, and a number of non-zero coefficients in the PMI is greater than 0.

In a seventh aspect, a method for transmitting channel state information is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component (such as a chip, a chip system, etc.) configured in the terminal device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application.

Illustratively, the method includes: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; receiving second information, wherein the second information is used for indicating at least one CMR set determined by the terminal equipment from the N CMRs, and any CMR set in the at least one CMR set comprises at least one CMR; and sending a CSI report, wherein the CSI report comprises the CSI corresponding to the at least one CMR set.

In the method, the terminal equipment performs CSI measurement reporting based on the received CMR set, so that the situation that the network equipment does not adopt the CMR reported by the terminal equipment for CJT is effectively avoided, and resource waste caused by that the terminal equipment reports the CSI but is not used by the network equipment can be reduced.

In addition, the network equipment can dynamically change the resources of the CJT, namely, the CJT transmission is dynamically scheduled, and the scheduling is more flexible.

In an eighth aspect, a method for transmitting channel state information is provided, where the method may be applied to a network device, and may be performed by the network device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the network device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the network device, which is not limited in this application.

Illustratively, the method includes: transmitting first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; transmitting second information, wherein the second information is used for indicating at least one CMR set determined by the terminal equipment from the N CMRs, and at least one CMR included in any CMR set in the at least one CMR set; and receiving a CSI report, wherein the CSI report comprises the CSI corresponding to the at least one CMR set.

In the method, the network equipment indicates the CMR of the terminal equipment for the CJT through the first information and the second information, so that the terminal equipment performs CSI measurement reporting based on the received CMR set, and resource waste caused by the fact that the terminal equipment reports the CSI but is not used by the network equipment is effectively reduced.

With reference to the seventh aspect and the eighth aspect, in certain implementations of the seventh aspect and the eighth aspect, the first information and the second information are both carried in radio resource control (radio resource control, RRC) signaling; alternatively, the first information is carried in RRC signaling, and the second information is carried in a medium access control unit (media access control control element MAC CE) or downlink control information (downlink control information, DCI).

The network device can dynamically change the resources of the CJT, namely, the CJT transmission is dynamically scheduled, and the scheduling is more flexible.

With reference to the seventh aspect and the eighth aspect, in certain implementation manners of the seventh aspect and the eighth aspect, the second information is carried in a bitmap, N bits in the bitmap are in one-to-one correspondence with the N CMRs, and each bit is used to indicate whether the corresponding CMR is used by the terminal device to determine CSI report.

With reference to the seventh aspect and the eighth aspect, in certain implementation manners of the seventh aspect and the eighth aspect, the second information includes an index corresponding to the at least one CMR set, the index is determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between the plurality of CMR sets and the plurality of indexes.

In a ninth aspect, a method for transmitting channel state information is provided, where the method is applied to a network device, and may be performed by the network device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the network device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the network device, where the application is not limited.

The method comprises the following steps: the network equipment determines the number of CSI processing units occupied by the terminal equipment when the CSI measurement is carried out on the resource pairs.

Illustratively, when the network device receives the information of the number of the CSI processing units from the terminal device, the network device determines the number of the CSI processing units occupied by the terminal device when the terminal device performs CSI measurement on the resource pair according to the information.

For example, when the network device does not receive the information of the number of CSI processing units from the terminal device, the network device determines, according to a predefined manner, the number of CSI processing units occupied by the terminal device when performing CSI measurement on the resource pair.

In the application, the network device determines the number of CSI processing units occupied by the terminal device when the terminal device performs CSI measurement on the resource pair through the information of the number of the CSI processing units reported by the terminal device or a predefined mode. Furthermore, the network device can flexibly schedule the terminal device to perform the CSI measurement on the resource pair according to the number of the CSI processing units occupied by the terminal device when the terminal device performs the CSI measurement on the resource pair.

With reference to the ninth aspect, in some implementations of the ninth aspect, when the network device does not receive the information about the number of CSI processing units from the terminal device, the network device determines, according to a predefined manner, that the number of CSI processing units occupied by the terminal device when performing CSI measurement on the resource pair is 2.

In this way, the network device may use the number of CSI processing units of the terminal device with strong processing capability as the default number of CSI processing units.

With reference to the ninth aspect, in some implementations of the ninth aspect, the network device receives information about the number of CSI processing units from the terminal device, where the information about the number of CSI processing units from the terminal device includes the number N of CSI processing units occupied by the terminal device when performing CSI measurement on the resource pair, where N has a value of one of {3,4, …, M }.

In the application, the network device can take the number of the CSI processing units of the terminal device with strong processing capability as the default number of the CSI processing units, and the terminal device with weak processing capability reports the number of the CSI processing units. Furthermore, the terminal equipment with strong processing capability can save signaling overhead without reporting the number of CSI processing units occupied when the CSI measurement is performed on the resource pair.

With reference to the ninth aspect, in some implementations of the ninth aspect, the network device determines, according to a predefined manner, that the number of CSI processing units occupied by the terminal device when performing CSI measurement on the resource pair is 2; the information of the number of the CSI processing units from the terminal equipment comprises the number N of the CSI processing units occupied by the terminal equipment when the terminal equipment performs CSI measurement on the resource pair, wherein the value of N is one of {2,4, …, M }.

In the application, the terminal equipment can select whether to report the number of the CSI processing units occupied when the CSI measurement is performed on the resource pair. If the terminal equipment does not report the number of the CSI processing units occupied when the CSI measurement is carried out on the resource pair, the network equipment takes the predefined number of the CSI processing units as the number of the CSI processing units occupied when the CSI measurement is carried out on the resource pair.

With reference to the ninth aspect, in some implementations of the ninth aspect, the information about the number of CSI processing units from the terminal device includes a value of N, which is one of {2,3, …, M-1} of the number of CSI processing units occupied by the terminal device when performing CSI measurement on the resource pair; and the network equipment determines that the number of the CSI processing units occupied by the terminal equipment when the CSI measurement is carried out on the resource pairs is M according to a predefined mode.

In the application, the number of the CSI processing units of the terminal equipment with weak processing capability can be used as the default number of the CSI processing units, and the terminal equipment with strong processing capability reports the number of the CSI processing units. Furthermore, the terminal equipment with strong processing capability can save signaling overhead without reporting the number of CSI processing units occupied when the CSI measurement is performed on the resource pair.

With reference to the ninth aspect, in certain implementations of the ninth aspect, when m=4, the value of N is determined by 1 bit.

In the method, the number of bits for reporting the number of the CSI processing units by the terminal equipment can be saved by limiting the value of N.

With reference to the ninth aspect, in certain implementations of the ninth aspect, m=5.

In a tenth aspect, a method for reporting CSI is provided, where the method may be applied to a terminal device, and may be performed by the terminal device, or may also be performed by a component (such as a chip, a system on a chip, etc.) configured in the terminal device, or may also be implemented by a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application.

The method comprises the following steps: the terminal device determines one or more of a physical uplink control channel (physical uplink control channe, PUCCH) resource, a number of physical resource blocks (physical resource block, PRB) of the PUCCH resource, or a number of second part (part 2) CSI reports according to a first rule; multiplexing a plurality of CSI reports in the PUCCH resource by the terminal equipment, wherein at least one of the plurality of CSI reports comprises a Part 2CSI report; and the terminal equipment reports the CSI on the PUCCH resource.

It should be understood that, when multiplexing multiple CSI reports in a PUCCH resource, the terminal device in the present application needs to determine the PUCCH resource reporting CSI, the number of PRBs of the PUCCH resource, or the number of second partial CSI reports. The PUCCH resource may be the same PUCCH resource as the PUCCH resource in the PRB number of the PUCCH resource. The number of PRBs is the number of PRBs of the PUCCH resource, and the number of PRBs is associated with the PUCCH resource. The PUCCH resource is associated with the PRB number of the PUCCH resource.

It should be further understood that when multiplexing multiple CSI reports in a PUCCH resource, in the present application, the terminal device may determine, according to the number and/or size of CSI reports, the PUCCH resource reporting CSI and the number of PRBs of the PUCCH resource. Or when multiplexing a plurality of CSI reports in the PUCCH resource, the terminal device may determine, according to the size of the CSI report, one or more of the number of PRBs of the PUCCH resource or the number of second partial CSI reports to report the CSI. For example, the terminal device may determine PUCCH resources and/or the PRB number of PUCCH resources assuming the size of the CSI report. Alternatively, the terminal device may determine PUCCH resources and/or the PRB number of PUCCH resources assuming the size of each CSI report and the maximum code rate configured by the network device. The above can be understood as an assumption (assume).

With reference to the tenth aspect, in some implementations of the tenth aspect, the first rule is: each CSI report of the plurality of CSI reports indicates rank (rank) 1 and/or rank combination {1,1}.

In the present application, before measuring CSI, the terminal device may determine the size of each CSI report by assuming a rank value and/or a rank combination, and further determine PUCCH resources and/or the number of PRBs of the PUCCH resources. Alternatively, before measuring CSI, the terminal device may determine the size of each CSI report, and thus determine one or more of PUCCH resources, the number of PRBs of the PUCCH resources, or the number of second partial CSI reports, assuming a rank value and/or a rank combination. Thus, when the CSI measurement is completed, the terminal equipment can directly report the CSI information, and the time delay is small. The network device can assume that the size of the CSI reported by the terminal device is determined by assuming rank 1 and/or rank combination {1,1}, so that the network device can exactly know the position of the CSI reported by the terminal device in the PUCCH resource, and further obtain the CSI without blind detection.

With reference to the tenth aspect, in certain implementations of the tenth aspect, the CSI reporting mode is mode 1, and the first rule is: each CSI report indicates rank 1 and/or rank combination {1,1}; the CSI reporting mode is mode 2, and the first rule is: each CSI report indicates a rank combination {1,1}.

In this application, when the mode of CSI reporting is mode1, the terminal device assumes that each CSI reporting indicates rank1 or rank combination {1,1}. Further, when the single TRP CSI number (number Of single TRP-CSI-Mode 1) is configured to be 0 in the higher layer parameter Mode1, the terminal device assumes that each CSI report indicates rank1; when the higher layer parameter number Of single TRP-CSI-Mode1 configuration is not 0, the terminal device assumes that each CSI report indicates rank1 and rank combination {1,1}. In this way, the terminal device may calculate the size of each CSI report, thereby determining PUCCH resources and/or the PRB number of PUCCH resources. Alternatively, the terminal device may calculate the size of each CSI report, and thereby determine one or more of PUCCH resources, the number of PRBs of the PUCCH resources, or the number of second partial CSI reports. Thus, when the CSI measurement is completed, the terminal equipment can directly report the CSI information, and the time delay is small. The network device can assume that the size of the CSI reported by the terminal device is determined by assuming Rank1 and/or Rank combination {1,1}, so that the network device can exactly know the position of the CSI reported by the terminal device in the PUCCH resource, and further obtain the CSI without blind detection.

In this application, when the mode of CSI reporting is mode 2, the terminal device assumes that each CSI reporting indicates rank combination {1,1}. In this way, the terminal device may calculate the size of each CSI report, thereby determining PUCCH resources and/or the PRB number of PUCCH resources. Thus, when the CSI measurement is completed, the terminal equipment can directly report the CSI information, and the time delay is small. The network device can assume that the size of the CSI reported by the terminal device is determined by assuming rank1 and/or rank combination {1,1}, so that the network device can exactly know the position of the CSI reported by the terminal device in the PUCCH resource, and further obtain the CSI without blind detection.

With reference to the tenth aspect, in certain implementations of the tenth aspect, when a mode of CSI reporting is mode 2, each CRI of the CSI reporting is associated with one resource pair.

When the mode of CSI reporting is mode 2, the terminal device may report CSI of a single TRP, or report CSI measured on a resource pair. In one possible implementation, the size of CSI measured by the terminal device on the resource pair is larger than that of CSI of a single TRP.

In the present application, the terminal device assumes that CSI is obtained by performing CSI measurement on a resource pair. In this way, the terminal device may calculate the size of each CSI report, thereby determining PUCCH resources and/or the PRB number of PUCCH resources. Moreover, the terminal equipment assumes that the CSI is obtained by carrying out CSI measurement on the resource pair, so that the problem that the size of the PUCCH resource is insufficient or the PRB number of the PUCCH resource is insufficient is not caused, and the terminal equipment can report all CSI information. If the terminal device assumes that the CSI is single TRP CSI, the problem of insufficient PUCCH resource size or insufficient PRB number of PUCCH resources may be caused, so that the terminal device can only report partial CSI information.

In an eleventh aspect, there is provided a communication apparatus comprising: for performing the method in any one of the possible implementations of the above aspect. In particular, the apparatus comprises means for performing the method in any one of the possible implementations of the above aspect.

In one design, the communication device may include modules corresponding to each other in performing the methods/operations/steps/actions described in any of the above aspects, where the modules may be implemented by hardware circuits, software, or a combination of hardware circuits and software.

In another design, the communication device is a communication chip that may include an input circuit or interface for transmitting information or data and an output circuit or interface for receiving information or data.

In another design, the communication device is a communication apparatus that may include a transmitter for transmitting information or data and a receiver for receiving information or data.

In another design, the communication device is configured to perform the method in any one of the foregoing aspects or any one of the foregoing possible implementation manners, where the communication device may be configured in a terminal device, or the communication device itself is the terminal device. Alternatively, the communication apparatus may be configured in a network device, or the communication apparatus itself is the network device.

In a twelfth aspect, a communications apparatus is provided that includes a processor, a memory for storing a computer program, the processor for calling and running the computer program from the memory, such that the apparatus performs the method in any one of the possible implementations of the foregoing aspect.

In one design, the processor is one or more and the memory is one or more.

In one design, the memory may be integrated with the processor or the memory may be separate from the processor.

In one design, the communication device further includes a transmitter (transmitter) and a receiver (receiver), which may be separate or integrated together and referred to as a transceiver (transceiver).

In a thirteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the method of any one of the possible implementations of any one of the aspects.

In a fourteenth aspect, there is provided a computer readable storage medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of any one of the aspects.

A fifteenth aspect provides a communications system comprising means for implementing the method of any one of the above first or second aspects, and means for implementing the method of any one of the above second or second aspects. Alternatively, means for carrying out the method of any one of the third or possible implementations of the third aspect are included, as well as means for carrying out the method of any one of the fourth or possible implementations of the fourth aspect. Alternatively, means for implementing the method of the fifth aspect or any one of the possible implementations of the fifth aspect are included, as well as means for implementing the method of the sixth aspect or any one of the possible implementations of the sixth aspect. Alternatively, means for implementing the method of the seventh aspect or any one of the possible implementations of the seventh aspect are included, as well as means for implementing the method of the seventh aspect or any one of the possible implementations of the seventh aspect.

In one possible design, the communication system may further include other devices that interact with the terminal device and/or the network device in the solution provided by the embodiments of the present application.

Drawings

Fig. 1 is a schematic diagram of a communication system provided in an embodiment of the present application;

fig. 2 is a schematic view of a cqt transmission scenario provided in the present application;

fig. 3 is a schematic flowchart of a method for transmitting channel state information according to an embodiment of the present application;

fig. 4 is a schematic flowchart of another method for transmitting channel state information according to an embodiment of the present application;

fig. 5 is a schematic flowchart of another method for transmitting channel state information according to an embodiment of the present application;

fig. 6 is a schematic flowchart of another method for transmitting channel state information according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 8 is a schematic block diagram of another communication device provided in an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical scheme provided by the application can be applied to various communication systems, such as: a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD) system, a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), a 5G mobile telecommunications system, a New Radio (NR) system or other evolved telecommunications system, and a next generation mobile telecommunications system, a sixth generation (6th generation,6G) telecommunications system, or a future telecommunications system of a 5G telecommunications system, etc.

To facilitate an understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication system 100 according to an embodiment of the present application. As shown in fig. 1, the communication system 100 includes at least two communication devices, for example, a network device 110 and a terminal device 120, wherein data communication between the network device 110 and the terminal device 120 may be performed through a wireless connection. Specifically, the network device 110 may send downlink data to the terminal device 120; terminal device 120 may also send upstream data to network device 110.

The network device in the communication system is used for determining the resource and the mode of data transmission and notifying the terminal device of the determined resource scheme and the determined data transmission mode. The terminal equipment is used for carrying out data transmission by adopting a resource allocation scheme and a data transmission mode determined by the network equipment according to the indication of the network equipment. The data transmission here includes reception of data and transmission of data.

The network device in this embodiment of the present application may be an access network device or a radio access network device, which may be a transmission receiving point (transmission reception point, TRP), an evolved NodeB (eNB or eNodeB) in an LTE system, a home base station (e.g., home evolved NodeB, or home Node B, HNB), a Base Band Unit (BBU), a radio controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or a network device in a relay station, an access point, a vehicle device, a wearable device, and a 5G network, or a network device in a PLMN network of future evolution, or may be an Access Point (AP) in a WLAN, or may be a gNB in an NR system, and the above-mentioned scheduling Node may be a city base station, a micro base station, a pico base station, a femto base station, or the like, or a terminal device with a scheduling function. The present application is not limited in this regard.

In one network architecture, the network devices may include Centralized Unit (CU) nodes, or Distributed Unit (DU) nodes, or radio access network (radio access network, RAN) devices including CU nodes and DU nodes, or RAN devices including control plane CU nodes (CU-CP nodes) and user plane CU nodes (CU-UP nodes) and DU nodes.

The network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

The terminal device in the embodiments of the present application is also referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc.

The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, examples of some terminal devices include: a mobile phone, tablet, laptop, palmtop, mobile internet device (mobile internet device, MID), wearable device, virtual Reality (VR) device, augmented reality (augmented reality, AR) device, wireless terminal in industrial control (industrial control), wireless terminal in unmanned (self driving), wireless terminal in teleoperation (remote medical surgery), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, public computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in a 5G network or a land-based communication terminal in the future (public land mobile network) is not limited to this network, etc.

By way of example and not limitation, in the present application, the terminal device may be a terminal device in an internet of things (internet of things, ioT) system. The internet of things is an important component of the development of future information technology, and is mainly technically characterized in that objects are connected with a network through a communication technology, so that man-machine interconnection and an intelligent network for the interconnection of the objects are realized. The terminal device in the embodiment of the application may be a wearable device, for example. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. A wearable device is a portable device that may be worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize powerful functions through software support and data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a terminal device in machine type communication (machine type communication, MTC). The terminal device may be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, a vehicle-mounted unit, or the like, which are built in the vehicle, and the vehicle may implement the method provided in the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit, or the like. Therefore, the embodiment of the application can also be applied to the internet of vehicles, such as vehicle external connection (vehicle to everything, V2X), long-term evolution technology of workshop communication (long term evolution-vehicle, LTE-V), vehicle-to-vehicle (V2V) technology and the like.

It should be appreciated that fig. 1 is a simplified schematic diagram that is shown for ease of understanding only, and that other devices may be included in the communication system 100, which are not shown in fig. 1.

Currently, a multi-transceiver point (transmission and receiving point, TRP) scenario is included in the communication system shown in fig. 1, that is, a plurality of TRPs may provide a data transmission service for the same terminal device at the same time. Exemplary, fig. 2 is a schematic view of a CJT transmission scenario provided in the present application. As shown in fig. 2, TRP1 and TRP2 may provide data transmission services for the same terminal device 210, and the same data stream (e.g., data 1) may be transmitted to the terminal device via different TRPs. Wherein only TRP0 of TRP1 and TRP0 transmits one DCI to the terminal device for scheduling one PDSCH, each stream/layer of the scheduled PDSCH (corresponding to one demodulation reference signal (demodulation reference signal, DMRS) port) being data-transmitted by all TRPs. It should be understood that one DCI described above may also be transmitted by TRP 2. TRP1 and TRP2 described above in fig. 2 are just one example and do not constitute limitations of the present application, and more TRPs may be included in a specific scenario.

In the above-mentioned CJT transmission scenario, when a plurality of TRPs are included, the network device and the terminal device want to perform data transmission on a channel with a better channel state, so the terminal device may perform channel estimation according to the channel measurement resource configured by the network device to determine the TRP for data transmission. It should be appreciated that TRP is associated with a CMR configured by a network device.

At present, the CSI measurement is based on a single TRP CSI measurement assumption, that is, when the terminal device performs CSI measurement on one reference signal resource and 1 interference measurement resource associated with the reference signal resource, it is assumed that subsequent data transmission comes from 1 TRP, and a CSI report is obtained by the terminal device. In the wireless communication process, a specific process of acquiring the CSI report by the network device (for example, TRP) is as follows: 1. the network device transmits a channel state sounding signal on the reference signal resource. 2. And the terminal equipment receives the channel state detection signal on the pre-configured reference signal resource to perform channel estimation.

In some embodiments, the network device further configures a set of interference measurement resources corresponding to the reference signal resources for the terminal device, each reference signal resource being associated with 1 interference measurement resource, and the terminal device receives signals on the preconfigured interference measurement resources to perform interference measurement. The terminal device calculates 1 CSI based on the channel measurement result obtained on the 1 reference signal resource and the interference measurement result obtained on the 1 associated interference measurement resource, and when the configured set of reference signal resources includes a plurality of reference signal resources, the terminal device may calculate a plurality of CSI on the plurality of reference signal resources and the plurality of interference measurement resources associated therewith, and the terminal device selects 1 CSI therefrom to form a CSI report, and transmits the CSI report through an uplink channel.

In some embodiments, the network device configures the terminal device with multiple TRPs for the CJT, so that the terminal device may determine one TRP set (one TRP set may include at least one TRP) from the multiple TRPs for the CJT, where the terminal device has high flexibility in selecting, but the terminal device needs to traverse multiple TRP sets to perform CSI measurement, and report one or more TPR sets in the multiple TRP sets and corresponding CSI. However, when the network device does not use the TRP set reported by the terminal device to make the CJT, a great resource waste is caused.

In view of this, the embodiments of the present application provide a method and an apparatus for transmitting channel state information, where a terminal device separately reports a selected CMR (TRP) set and a corresponding CSI, so that after reporting the selected CMR set, the terminal device may further determine whether to send the CSI corresponding to the reported CMR set, thereby effectively reducing resource waste.

Before introducing the methods provided herein, the following description is made.

First, in the present application, "indication" may include direct indication and indirect indication, and may include explicit indication and implicit indication. The information indicated by a certain information is referred to as information to be indicated, and in a specific implementation process, there may be various ways of indicating the information to be indicated, for example, but not limited to, directly indicating the information to be indicated, such as indicating the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

Second, in the embodiments illustrated herein, terms and english abbreviations, such as CMR, CSI report, CMR set, etc., are given as illustrative examples for convenience of description, and should not constitute any limitation to the present application. This application does not exclude the possibility of defining other terms in existing or future protocols that perform the same or similar functions.

Third, the first, second and various numerical numbers in the embodiments shown below are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application. For example, different information is distinguished, etc.

Fourth, in the embodiments shown below, "predefined" may be implemented by pre-storing corresponding codes, tables, or other manners in devices (including, for example, terminal devices and network devices) that may be used to indicate relevant information, and the specific implementation of the present application is not limited.

Fifth, the "protocol" referred to in the embodiments of the present application may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in this application.

The method for transmitting channel state information according to the embodiment of the present application is described in detail below with reference to fig. 3 to 6. The transmission method may be applied to the communication system 100 shown in fig. 1, but the embodiment of the present application is not limited thereto. In fig. 3 to 6, the method is illustrated by taking the terminal device and the network device as the execution bodies of the interactive instruction, but the application is not limited to the execution bodies of the interactive instruction. For example, the terminal device in fig. 3 to 6 may also be a chip, a system on a chip, or a processor supporting the terminal device to implement the method, or may be a logic module or software capable of implementing all or part of the functions of the terminal device; the network device in fig. 3 to 6 may also be a chip, a system on a chip, or a processor supporting the network device to implement the method, or may be a logic module or software capable of implementing all or part of the functions of the network device.

Fig. 3 is a schematic flowchart of a method 300 for transmitting channel state information according to an embodiment of the present application. The method 300 may include steps S301 to S305, and each step in the method 300 is described in detail below.

S301, the terminal device sends first indication information, where the first indication information is used to indicate a first CMR set determined by the terminal device. Correspondingly, the network device receives the first indication information.

Wherein the first set of CMRs may include one or more CMRs therein. It should be appreciated that one or more of the CMRs included in the first set of CMRs may be all self-selected by the terminal device, or may be partially self-selected by the terminal device, and partially configured by the network device. The present application is not limited in this regard.

The CMR included in the first CMR set in the embodiment of the present application is used for cqt, or in other words, the CMR included in the first CMR set is used for determining reported CSI.

It should be appreciated that the above-described CMRs are associated with TRPs, i.e., one CMR may correspond to one TRP.

Alternatively, the first indication information may be used to indicate a plurality of first CMR sets determined by the terminal device. The terminal device transmits first indication information to the network device, the network device selects one CMR set from the plurality of first CMR sets for CJT based on the first indication information, and transmits the selected one CMR set to the terminal device.

S302, the network device determines whether to configure the CMR for the terminal device. That is, the network device determines whether to reconfigure the CMR for the terminal device; alternatively, the network device determines whether to reconfigure the CMR for the cqt for the terminal device; alternatively, the network device determines whether to use the first CMR set as CJT; alternatively, the network device determines whether to send the first configuration information (within a preset time).

Two possible scenarios are shown below:

in the case one, in the case where the network device determines that the CMR needs to be configured for the terminal device, S303 and S304 are executed:

s303, the network device sends first configuration information, where the first configuration information is used to indicate a second CMR set, and the second CMR set includes CMRs configured by the network device for the terminal device. Correspondingly, the terminal device receives the first configuration information. Wherein the CMR included in the second set of CMRs is for CJT.

S304, the terminal equipment sends the CSI corresponding to the second CMR set. Correspondingly, the network device receives CSI corresponding to the second CMR set.

The measurement information included in the CSI in the embodiment of the present application may be one or more of the following: CQI, PMI, LI or RI.

It should be understood that the first configuration information may be carried in RRC signaling or DCI, which is not limited in this application.

Alternatively, in the scenario of case one, before S303, the network device may send a first signaling (e.g., NACK information) to the terminal device, where the first signaling is used to indicate that the terminal device does not need to send CSI corresponding to the first CMR set any more.

In the second case, where the network device determines that the CMR does not need to be configured for the terminal device (i.e., the network device determines to use the first CMR set as CJT), S305 is performed: and the terminal equipment sends the CSI corresponding to the first CMR set. Correspondingly, the network device receives CSI corresponding to the first CMR set.

It should be understood that whether the network device needs to configure the CMR for the terminal device may be determined according to the first CMR set reported by the terminal device. That is, the network device determines to perform S303 and S304 or S305 according to the received first CMR set.

Optionally, in the second scenario, the network device may send a first signaling (e.g. ACK information) to the terminal device, where the first signaling is used to instruct the terminal device to send CSI corresponding to the first CMR set. Alternatively, the network device does not transmit information (e.g., ACK information, NACK information, or first configuration) for a preset period of time. That is, the terminal device may send CSI corresponding to the first CMR set to the network device without receiving the first configuration within a preset period.

It should be understood that the above-mentioned preset period of time may also be the first period of time, and the period of time may be a timeout period for the terminal device to receive information, for example, 5s or 10s. Or the time period is set through a timer, namely the timer is overtime, and if the first configuration is not received, the CSI corresponding to the first CMR set is sent.

It should also be understood that S303 to S305 in fig. 3 need not be all performed, and the network device and the terminal device may select corresponding steps to perform according to the two different cases described above.

In the embodiment of the application, the terminal equipment firstly sends the determined first CMR set to the network equipment, after receiving the first CMR set, the network equipment determines whether to use the first CMR set reported by the terminal equipment as CJT, and when the reported first CMR set needs to be used as CJT, the terminal equipment sends CSI corresponding to the first CMR set; and when the reported first CMR set is not required to be used for CJT, the second CMR set is reconfigured for the terminal equipment, and the terminal equipment reports the corresponding CSI based on the second CMR set. By separately reporting the first CMR set determined by the terminal equipment and the CSI, unnecessary resource expenditure caused by reporting the CSI can be avoided and resource waste can be reduced when the network equipment does not need to use the first CMR set determined by the terminal equipment.

As an alternative embodiment, before S301, the method 300 further includes: the network device sends second configuration information, where the second configuration information is used to configure N CMRs for the terminal device, where M CMRs in the first CMR set are from the N CMRs, and N is a positive integer. Correspondingly, the terminal device receives the second configuration information.

The above-described N CMRs configured by the network device may be understood as a selection range of CMRs configured by the network device for the terminal device for CJT. For example, n=4, where TRP is TRP0, TRP1, TRP2, TRP3, respectively, and the terminal device may select M TRPs from the 4 TRPs as CJT, where 0 < M is an integer equal to or less than N. That is, the terminal device may select 1, 2, 3 or 4 TRPs from among 4 TRPs for CSI measurement, and may be combined by 15, i.e., the terminal device needs to traverse 15 combinations for CSI measurement.

As an alternative embodiment, before S301, the method 300 further includes: the network device sends second indication information, where the second indication information is used to indicate the number M of CMRs included in the first CMR set, M is a positive integer, and M is less than or equal to N. Correspondingly, the terminal device receives the second indication information. Wherein the M CMRs included in the first CMR set may all be self-selected by the terminal device.

It should be understood that the second configuration information may be carried in RRC signaling, and the second indication information may be carried in DCI; or, the second configuration information and the second indication information are both carried in RRC signaling.

In combination with the above, for example, when m=2, the terminal device has 6 combinations, the terminal device needs to traverse the 6 combinations to perform CSI measurement, and select one combination to report.

Illustratively, the network device configures 4 CMRs (i.e., n=4) for the terminal device, with 4 TRPs associated with the 4 CMRs being TRP0, TRP1, TRP2, TRP3, respectively. When n=4, the value of M indicated by the third indication information should satisfy: an integer of 0 < M.ltoreq.N.

In the following, TRP included in the first CMR set at various values of M will be described by taking TRP as an example.

When m=1, there are 4 possibilities for the TRP included in the first CMR set, i.e. any one of the following TRP is included in the first CMR set: TRP0, TRP1, TRP2, or TRP3.

At m=2, there are 6 possible combinations of TRP included in the first CMR set, namely, any one of the following combinations are included in the first CMR set: (TRP 0, TRP 1), (TRP 0, TRP 2), (TRP 0, TRP 3), (TRP 1, TRP 2), (TRP 1, TRP 3), (TRP 2, TRP 3).

At m=3, there are 4 possible combinations of TRP included in the first CMR set, namely, any one of the following combinations are included in the first CMR set: (TRP 0, TRP1, TRP 2), (TRP 0, TRP1, TRP 3), (TRP 0, TRP2, TRP 3), (TRP 1, TRP2, TRP 3).

At m=4, there are 1 possible combinations of TRP included in the first CMR set, namely TRP0, TRP1, TRP2 and TRP3 are included in the first CMR set.

As an alternative embodiment, after the terminal device receives the second configuration information, the method 300 further includes: the network device transmits third indication information, where the third indication information is used to instruct the terminal device to determine P CMRs from the N CMRs. Correspondingly, the terminal equipment receives the third indication information, and selects Q CMRs from the rest CMRs except for P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+Q=M. That is, one or more CMRs included in the first set of CMRs are partially selected by the terminal device (e.g., Q CMRs) and partially configured by the network device (e.g., P CMRs).

The above P CMRs may be understood as specific CMRs determined by the network device for CJT, and send the determined CMRs for CJT to the terminal device, so that the terminal device may select Q CMRs from the remaining CMRs except the P CMRs when determining the first CMR set. Illustratively, in combination with the above n=4 (TRP is TRP0, TRP1, TRP2, TRP3, respectively), m=3, the value of P may be 1 or 2. When p=1, the TRP determined by the network device is TRP0, where q=2, i.e. the terminal device needs to select two TRPs from TRP1, TRP2, TRP3, and report the first CMR set consisting of TRP0, TRP1 and TRP2 together.

It should be understood that the second configuration information and the third indication information may be carried in the same signaling, for example, RRC signaling; or carried by a different signaling.

As an alternative embodiment, before S301, the method 300 further includes: the network device sends second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the terminal device, M is a positive integer, and M is less than or equal to N. Correspondingly, the network device receives the second indication information.

Wherein the value of M indicated by the second indication information is not the number of CMRs included in the first CMR set.

As an alternative embodiment, the first CMR set includes Q CMRs; after the terminal device receives the second indication information, the method 300 further includes: the network equipment sends third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from N CMRs; and selecting M CMRs from the remaining CMRs except for the P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+M=Q. Correspondingly, the terminal device receives the second indication information.

In this embodiment of the present application, after the network device configures N CMRs for the terminal device, the network device may further indicate which one or more CMRs need to be selected for CJT by the terminal device. Therefore, the probability that the network equipment uses the CMR set reported by the terminal equipment for CJT can be increased, and the waste of resources is effectively avoided.

As an optional embodiment, the first indication information is carried in a bitmap, N bits in the bitmap are in one-to-one correspondence with N CMRs, and each bit is used for indicating whether the corresponding CMR is used by the terminal device to determine CSI; or, each bit is used to indicate whether the corresponding CMR is determined for cqt by the terminal equipment; alternatively, each bit is used to indicate whether the corresponding CMR belongs to the first CMR set.

In combination with the above n=4 example, the 4 bits in the bitmap correspond to TRP0, TRP1, TRP2 and TRP3 described above, respectively. Table one shows the correspondence of a bit to a TRP.

List one

Bit 3	Bit 2	Bit 1	Bit 0
				TRP3	TRP2	TRP1	TRP0

As shown in table one, each bit may indicate whether the CMR corresponding to the bit is determined for cqt by the terminal equipment by 0 or 1. Illustratively, "1" indicates that the CMR corresponding to the bit is determined by the terminal device for CJT, "0" indicates that the CMR corresponding to the bit is not determined by the terminal device for CJT, e.g., 0110 indicates that TRP for CJT is TRP2 and TRP1; alternatively, "0" indicates that the CMR corresponding to the bit is determined by the terminal device for the CJT, and "1" indicates that the CMR corresponding to the bit is not determined by the terminal device for the CJT, for example, 1001 indicates that TRP for the CJT is TRP2 and TRP1.

It should be appreciated that the correspondence (e.g., table one) of the bitmaps and CMR described above may be predefined or configured.

As an optional embodiment, the first indication information includes an index corresponding to the first CMR set, where the index is determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between at least one CMR set and at least one index.

In combination with the above n=4 example, the first CMR set includes 15 possible combinations of TRPs, and the mapping relationship may be a one-to-one correspondence between the 15 possible combinations and 15 numbers (indexes). Alternatively, the index may indicate 15 possible combinations with 4 bits.

Alternatively, the 15 possible combinations described above may be numbered (indexed) using the following numbering convention:

wherein i is _TRP Indicating the number corresponding to each combination, n ⁱ The number indicating the ith TRP. For example, TRP0 (0 th TRP) is numbered 0, TRP1 (1 st TRP) is numbered 1, TRP2 (2 nd TRP) is numbered 2, TRP3 (3 rd TRP) is numbered 3.

Taking the example of 6 possible combinations included in the first CMR set when m=2, determining the number corresponding to each possible combination by the above numbering rule is described in detail below.

1. For (TRP 0, TRP 1), i _TRP ＝C(N _TRP -1-0，N)+C(N _TRP -1-1，N-1)＝3+2＝5。

2. For (TRP 0, TRP 2), i _TRP ＝C(N _TRP -1-0，N）+C(N _TRP -1-2，N-1)＝3+1＝4。

3. For (TRP 0, TRP 3), i _TRP ＝C(N _TRP -1-0，N)+C(N _TRP -1-3，N-1)＝3+0＝3。

4. For (TRP 1, TRP 2), i _TRP ＝C(N _TRP -1-1，N)+C(N _TRP -1-2，N-1)＝1+1＝2。

5. For (TRP 1, TRP 3), i _TRP ＝C(N _TRP -1-1，N)+C(N _TRP -1-3，N-1)＝1+0＝1。

6. For (TRP 2, TRP 3), i _TRP ＝C(N _TRP -1-2，N)+C(N _TRP -1-3，N-1)＝0+0＝0。

Each of the possible combinations corresponds to a unique number, and after receiving the number, the network device may determine the corresponding possible combination through a corresponding algorithm.

As an alternative embodiment, the first indication information includes M CRIs corresponding to M CMRs one by one.

As an alternative embodiment, the first indication information includes Q CRIs in one-to-one correspondence with Q CMRs.

Fig. 4 is a schematic flow chart of another method 400 for transmitting channel state information according to an embodiment of the present application. The method 400 may include S401 to S403, and each step in the method 400 is described in detail below.

S401, the network device sends first information, where the first information is used to indicate N CMRs configured for the terminal device, and N is a positive integer. Correspondingly, the terminal device receives the first information.

It should be understood that each of the above-mentioned N CMRs may be associated with one TRP, respectively, that is, the network device configures the terminal device with N TRPs. The relevant descriptions of the N CMRs may refer to the relevant descriptions of the second configuration information in the method 300, which are not described herein.

S402, the network equipment sends second information, wherein the second information is used for indicating the number M of CMRs selected by the terminal equipment from N CMRs, M is a positive integer, and M is less than or equal to N. Correspondingly, the terminal device receives the second information.

It should be appreciated that the first information and the second information may be carried in the same signaling, e.g., RRC signaling; alternatively, the first information and the second information are respectively carried in two different signaling, for example, the first information is carried in RRC signaling, and the second information is carried in DCI signaling. The present application is not limited in this regard.

S403, the terminal equipment sends a CSI report, wherein the CSI report comprises CSI and/or CMR indication information. Correspondingly, the network device receives the CSI report.

The CMR indication information is used for indicating a CMR set determined by the terminal equipment from N CMRs, and the CSI comprises at least one of the following information: PMI, CQI, RI, or LI.

It should be appreciated that the number of CMRs included in a set of CMRs may be M or greater than M.

It should also be understood that, when the CSI report includes the CMR indication information, the CSI corresponding to the CMR set indicated by the CMR indication information needs to be reported again. When the CSI report includes CSI, the CMR set determined by the terminal device may indicate, by the number of non-zero coefficients in the PMI in the CSI, that is, the non-zero coefficients in the PMI are greater than zero, that the CMR corresponding to the CSI is the CMR determined by the terminal device for CJT.

The first information may be understood as a selection range of TRP configured by the network device for the terminal device for CJT, and the second information may be understood as a second configuration performed by the network device for further reducing the possibility of selecting the terminal device based on the selection range of the configuration. For example, when n=4, the TRP that may be associated is TRP0, TRP1, TRP2, TRP3, and the terminal device may select one or more TRPs from the 4 TRPs as CJT, for a total of 15 combinations, that is, the terminal device needs to traverse the 15 combinations to perform CSI measurement, so as to determine that one combination performs CSI measurement reporting. If m=2, it means that the terminal device only needs to select two TRPs from the 4 TRPs to make CJT, and there are 6 combinations, at this time, the terminal device only needs to traverse these 6 combinations to perform CSI measurement, which greatly reduces the processing complexity of the terminal device and has lower requirement on the processing capability of the terminal device.

In the embodiment of the invention, the network device can instruct the terminal device to determine the number of CMRs for CJT by sending the second instruction information, and the terminal device can select the CMRs for CJT based on the measurement of the terminal device when receiving the second instruction information, so that the network device and the terminal device have a certain selection space, and meanwhile, the terminal device needs to traverse C (N, M) combinations at most when selecting the CMRs, thereby effectively reducing the processing complexity of the terminal device and having lower processing capability requirement on the terminal device.

As an alternative embodiment, the above-mentioned one CMR set includes M CMRs; before sending the CSI report, the method 400 further includes: the network device sends third information, where the third information is used to instruct the terminal device to determine P CMRs from the N CMRs, where the P CMRs belong to the CMR set. Correspondingly, the terminal device receives the third information, and selects Q CMRs from the remaining CMRs except for P CMRs from the N CMRs based on the third information, where P and Q are positive integers, and p+q=m.

In the application, the CSI reported by the terminal equipment is completely corresponding to the CMR set indicated by the CMR indication information.

It should be appreciated that the third information may be carried in the same signaling as the first information; alternatively, the third information may be carried in the same signaling as the second information; alternatively, the third information is carried on a single signaling.

It should also be understood that the network device further instructs the terminal device to determine the TRP to be selected among the N TRPs by the above third information, for example, when n=4 (the associated TRP is TRP0, TRP1, TRP2, TRP 3), the third information may indicate TRP2, and if m=3, the terminal device may select two TRPs from the remaining TRP0, TRP1, TRP 3. It should be understood that the selection here may be optional for the terminal device from the remaining TRPs; the terminal device may also determine one CSI based on CSI corresponding to multiple selection results, where the TRP included in the TPR set corresponding to the CSI may be used as the TRP selected by the terminal device.

Alternatively, only two TRPs may be included in the above-described CMR set. That is, Q CMRs may be included in the above-described CMR set. When Q CMRs may be included in the CMR set, the CSI report includes CSI corresponding to a CMR set formed by Q CMRs and P CMRs.

As an alternative embodiment, the above-mentioned one CMR set includes M CMRs; before sending the CSI report, the method 400 further includes: the network device sends third information, where the third information is used to instruct the terminal device to determine P CMRs from the N CMRs, where the P CMRs do not belong to a CMR set, and P is a positive integer, and p+m is less than or equal to N. Correspondingly, the terminal device receives the third information, and selects M CMRs from the remaining CMRs except for P CMRs from among the N CMRs based on the third information. And the P CMRs indicated by the third information are CMRs configured by the network equipment for the terminal equipment.

It should be understood that, in this application, CSI reported by a terminal device does not correspond to a CMR set indicated by CMR indication information. That is, if the network device does not send the third indication information, the CSI reported by the terminal device corresponds to the CMR set indicated by the CMR indication information; in the case that the network device sends the third indication information, the CSI reported by the terminal device may not correspond to the CMR set indicated by the CMR indication information. For example, in the above embodiment, if the CMR set does not include P CMRs, the reported CSI report corresponds to a CMR set formed by M CMRs and P CMRs, and does not correspond to the CMR set indicated by the above CMR indication information.

Optionally, the CSI reported by the terminal device may be CSI corresponding to m+p CMRs. That is, the M CMRs included in the first CMR set are CMRs selected by the terminal device, and P CMRs indicated by the network device for the terminal device are not included, but when the terminal device reports CSI, the CSI corresponding to the first CMR set and the P CMRs needs to be reported.

As an alternative embodiment, the CMR indication information is carried in a bitmap, where N bits in the bitmap are in one-to-one correspondence with N CMRs, and each bit is used to indicate whether the corresponding CMR is used by the terminal device to determine the CSI report. Alternatively, the N-P bits in the bitmap are in one-to-one correspondence with the N-P CMRs, each bit being used to indicate whether the corresponding CMR is determined by the terminal device for CJT.

The one-to-one correspondence between the N bits and the N CMRs may refer to the description related to the table one, which is not repeated here.

And combining the third indication information to indicate TRP2, wherein the TRP2 is not included in the TRP set reported by the terminal equipment, and the bit number of the bitmap is 3 and corresponds to TRP0, TRP1 and TRP3 respectively. Table two shows a correspondence of bits and TRP.

Watch II

Bit 2	Bit 1	Bit 0
			TRP3	TRP1	TRP0

As shown in table two, each bit may indicate whether the CMR corresponding to the bit is determined for cqt by the terminal equipment by 0 or 1. Illustratively, "1" indicates that the CMR corresponding to the bit is determined by the terminal device for CJT, "0" indicates that the CMR corresponding to the bit is not determined by the terminal device for CJT, e.g., 011 indicates TRP for CJT is TRP1 and TRP0; alternatively, "0" indicates that the CMR corresponding to the bit is determined by the terminal device for the CJT, and "1" indicates that the CMR corresponding to the bit is not determined by the terminal device for the CJT, for example, 100 indicates that TRP for the CJT is TRP1 and TRP0. It should be appreciated that the above-described correspondence of bitmaps to TRPs (e.g., table two) may be predefined or configured.

As an alternative embodiment, the CMR indication information is M CRIs in one-to-one correspondence with M CMRs.

As an alternative embodiment, the CMR indication information is an index corresponding to one CMR set, the index being determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between at least one CMR set and at least one index.

The predefined mapping relationship may refer to the related description about the index and the predefined mapping relationship, which is not described herein.

Fig. 5 is a schematic flowchart of another method 500 for transmitting channel state information according to an embodiment of the present application. The method 500 may include S501 to S504, and each step in the method 500 is described in detail below.

S501, the network device sends first information, where the first information is used to indicate N CMRs configured for the terminal device, and N is a positive integer. Correspondingly, the terminal device receives the first information.

The step is the same as S401 in the method 400, and the specific process can be referred to the related description, which is not repeated here.

S502, the network equipment sends second information, wherein the second information is used for indicating L values of the number of CMRs selected by the terminal equipment from N CMRs, L is an integer greater than 1, and L is less than or equal to N. Correspondingly, the terminal device receives the second information.

The second information in the above method 400 indicates only one value M, for example, when n=4, the value of M may be 1,2,3, or 4. I.e. 1,2,3 or 4 out of N CMRs.

The second information in method 500 indicates L values. Illustratively, when n=4, l=2, the two values indicated may be M1 and M2; when n=4 and l=3, the two values indicated may be M1, M2 and M3; when n=4 and l=4, the two values indicated may be M1, M2, M3 and M4. Further, when n=4 and l=2, the values of M1 and M2 may be two or more selected from 1,2,3, and 4, and m1+.m2; when n=4 and l=3, the values of M1, M2 and M3 can be three or more from 1,2,3 and 4, and m1+.m2+.m3; when n=4 and l=4, M1, M2, M3 and M4 may be 1,2,3 and 4, respectively. For example, when n=4, l=2, m1=1, m2=2, the second information indicates that the terminal device can select one CMR from among 4 CMRs for CJT, and the terminal device can also select two CMRs from among 4 CMRs for CJT. That is, the terminal device may have a C (N, M1) +c (N, M2) seed selection. It should be understood that the CMR selected by the terminal device for CJT may be any choice, or may be selected based on multiple CSI measurements, where multiple CSI measurements are based on a combination of multiple CMRs.

And S503, the network equipment sends third information, wherein the third information indicates the quantity of CSI to be reported corresponding to each value in the L values. Correspondingly, the terminal device receives the third information.

Wherein the quantity of CSI to be reported corresponding to the ith value Mi in the L values is Ki, mi, ki and i are positive integers, and K _i ≤C(N，M _i )，1≤i≤K。

In combination with the above examples of m1=1 and m2=2 when n=4 and l=2, M1 may be a first value, where m1=1, the number of reportable CSI is 4, M2 may be a second value, and where m2=2, the number of reportable CSI is 6. Considering the capability of reporting the CSI by the terminal equipment, the method and the device further indicate the quantity of the CSI to be reported by the terminal equipment under each value through the third indication information. For m1=1, the indicated number to be reported may be K1, 0+.k1+.4; for m2=2, the indicated number to be reported may be K2, 0.ltoreq.k2.ltoreq.6.

It should be appreciated that the second information and the third information described above may be carried on the same signaling. For example, RRC signaling or DCI signaling; alternatively, the second information and the third information may be carried on different signaling, such as RRC signaling and DCI signaling, respectively.

It should also be appreciated that S503 may be an optional step. That is, the network device may not instruct, by the third information, the number of CSI to be reported corresponding to each of the L values of the terminal device. When the network device does not send the third information, the terminal device may determine, based on the capability of reporting the CSI measurement hypothesis by itself, the number of CSI to be reported corresponding to each of the L values. That is, S503 may be that the terminal device determines the number of CSI to be reported corresponding to each of the L values based on the capability of reporting the CSI measurement hypothesis itself.

S504, the network equipment receives a CSI report, wherein the CSI report comprisesIndividual CSI and/or->The CMR indicates information. Correspondingly, the terminal device receives the CSI report.

The CMR indication information is used for indicating a CMR set determined by the terminal equipment from N CMRs, and the CSI comprises one or more of PMI, CQI, RI or LI.Individual CSI and->The CMRs are in one-to-one correspondence.

In the embodiment of the present application, the number of CSI reported by the terminal device is the same as the number of CMR sets reported for CJT, and corresponds to one. I.e. one CSI per CMR indication.

The process may refer to the description related to S403 in the method 400, which is not described herein.

In the embodiment of the application, the terminal equipment receives L values from the network equipment and the quantity of the CSI reported under each value, so that the quantity of the CSI processed by the terminal equipment at the same time can be reduced, the processing complexity of the terminal equipment is reduced, and the processing capability requirement of the terminal equipment is low.

As an alternative to this embodiment,kr reports the number of CSI measurement hypotheses to the terminal equipment; the method 500 further includes, prior to receiving the third information: the terminal equipment sends the number Kr of CSI measurement hypotheses reported by the terminal equipment to the network equipment; correspondingly, the network device receives the number Kr of CSI measurement hypotheses.

The measurement hypothesis may be understood as a CMR set reported by the terminal device and a corresponding CSI.

In the method, the terminal equipment sends the number of the CSI measurement hypotheses reported to the network equipment, so that the network equipment can determine the content of the indication of the third indication information based on the number reported by the terminal equipment. For example, if the number of CSI measurement hypotheses that can be reported by the terminal device is 8, the sum of all values indicated in the third information sent by the network device should be less than or equal to 8.

As an optional embodiment, ki is less than or equal to Ky, wherein Ky is the number of reporting CSI measurement hypotheses determined by the terminal equipment under each value; the method 500 further includes, prior to receiving the third information: the terminal equipment sends the number Ky of reporting CSI measurement assumptions determined by the terminal equipment under each value to the network equipment; correspondingly, the network device receives the number Ky of CSI measurement hypotheses.

In the method, the terminal equipment sends the number of CSI measurement assumptions reported by the terminal equipment under each value to the network equipment, so that the network equipment can determine the content of the indication of the third indication information based on the number reported by the terminal equipment.

In combination with the above examples of m1=1 and m2=2 when n=4 and l=2, M1 may be a first value, where m1=1, the number of reportable CSI is 4, M2 may be a second value, and where m2=2, the number of reportable CSI is 6. If the number of the CSI measurement hypotheses that can be reported by the terminal device is 3 under the first value, the number of CSI to be reported indicated by the third indication information for the first value should be less than or equal to 3.

As an alternative to this embodiment,the CMR indication information is carried in->Each group of bits comprises N bits corresponding to N CMRs one by one, and the value of each bit is used for indicating whether the corresponding CMR is used for determining the CSI report by the terminal equipment; or, each bit is used to indicate whether the corresponding CMR is determined for cqt by the terminal equipment; alternatively, each bit is used to indicate whether the corresponding CMR belongs to a CMR set.

It should be understood that the number of bits in each group is N, where N bits are in one-to-one correspondence with N CMRs, and specific correspondence may refer to the related description of the table one, which is not repeated herein.

As an alternative to this embodiment,the CMR indication information is AND +.>The CMR sets have one-to-one indexes, and the indexes are determined according to a predefined mapping relation, wherein the mapping relation is used for indicating the one-to-one correspondence between at least one CMR set and at least one index. That is, each CMR set has a corresponding one of the indexes. Reference may be made to the above related descriptions for indexes and mapping relationships, and they are not repeated here.

As an alternative to this embodiment,the CMR indication information is AND +.>And CRI sets corresponding to the CMR sets one by one.

It should be appreciated that the CRI set includes the same number of CRIs as the number of CMRs included in the corresponding CMR set.

Fig. 6 is a schematic flow chart of another method 600 for transmitting channel state information according to an embodiment of the present application. The method 600 may include S601 to S603, and each step in the method 600 is described in detail below.

S601, the network device sends first information, where the first information is used to indicate N CMRs configured for the terminal device, and N is a positive integer. Correspondingly, the terminal device receives the first information.

S602, the network device sends second information, where the second information is used to instruct the terminal device to determine at least one CMR set from the N CMRs, where any one of the at least one CMR set includes at least one CMR. Correspondingly, the terminal device receives the second information.

S603, the terminal equipment sends a CSI report, wherein the CSI report comprises at least one CSI corresponding to the CMR set. Correspondingly, the network device receives the CSI report.

In the embodiment of the application, the network equipment indicates the CMR of the terminal equipment for the CJT through the first information and the second information, so that the terminal equipment reports the CSI measurement based on the received CMR set, the situation that the network equipment does not adopt the CMR reported by the terminal equipment for the CJT is effectively avoided, and the resource waste can be reduced.

It should be understood that, if the CMR set indicated by the second information is one, the terminal device reports CSI corresponding to the CMR set.

It should also be understood that if the CMR sets indicated by the second indication information are R, the terminal device reports J CSI corresponding to the J CMR sets one to one; or the terminal equipment reports the CSI corresponding to one CMR set in the R CMR sets, wherein J is less than or equal to R, and J and R are both positive integers.

As an alternative embodiment, the second information is carried in a bitmap, where N bits in the bitmap are in one-to-one correspondence with N CMRs, and each bit is used to indicate whether the corresponding CMR is determined by the terminal device for cqt.

The corresponding relation between the N bits and the N CMRs in the bitmap may refer to the description related to the table one, which is not described herein.

As an alternative embodiment, the second information includes an index corresponding to at least one CMR set, where the index is determined according to a predefined mapping relationship, and the mapping relationship is used to indicate a one-to-one correspondence between the plurality of CMR sets and the plurality of indexes.

Reference may be made to the above related descriptions for indexes and mapping relationships, and they are not repeated here.

The second configuration information in the above method 300, and the first information in the methods 400, 500, and 600 may be used to indicate the N CMRs configured for the terminal device. And N CMRs are associated with N TRPs, the second configuration information and the first information may be used to configure N TRPs for the terminal device.

In another possible design, one CMR may also be associated with N TRPs, which the network device may indicate by indicating one CMR. Illustratively, the one CMR may be used to indicate N port groups, each of which may be associated with one TRP, or multiple TRPs. In other words, the second configuration information in the above method 300, and the first information in the method 400, the method 500, and the method 600 may also be used to indicate one CMR configured for a terminal device, or N port groups configured for the terminal device, where one CMR associates N port groups, and each port group is associated with one TRP. It should be understood that, when the second configuration information and the first information indicate N groups of ports configured for the terminal device, the CMR set is a CMR port group set, and the M CMRs are M CMR port groups; that is, the CMR in the above method embodiment may be a CMR port group.

It should be understood that the sequence numbers of the above processes do not mean the order of execution, and the execution order of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The method of the embodiments of the present application is described in detail above with reference to fig. 3 to 6, and the apparatus of the embodiments of the present application will be described in detail below with reference to fig. 7 and 8.

Fig. 7 is a communication device 700 provided in an embodiment of the present application. As shown in fig. 7, the apparatus 700 includes: and a transmitting module 710. Optionally, the apparatus 700 further comprises a receiving module 720, and a processing module 730.

In one possible implementation, the apparatus 700 is the terminal device described above, or a chip, a system-on-chip of the terminal device. The apparatus 700 may be configured to implement the method corresponding to the terminal device in the foregoing method 300. Alternatively, the apparatus 700 may be configured to implement the method corresponding to the terminal device in the foregoing method 400. Alternatively, the apparatus 700 may be configured to implement a method corresponding to the terminal device in the foregoing method 500. Alternatively, the apparatus 700 may be configured to implement a method corresponding to the terminal device in the foregoing method 600.

Illustratively, the transmitting module 710 is configured to: transmitting first indication information, wherein the first indication information is used for indicating a first channel measurement resource CMR set determined by the terminal equipment; and transmitting Channel State Information (CSI) corresponding to the first CMR set to a network device when the first configuration information is not received within a preset period, or transmitting CSI corresponding to a second CMR set to the network device when the first configuration information is received within the preset period; the first configuration information is used for configuring a second CMR set, and the second CMR set comprises CMRs configured by network equipment for the terminal equipment.

Illustratively, the receiving module 720 is configured to: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; receiving second information, wherein the second information is used for indicating the number M of CMRs selected by the terminal equipment from the N CMRs, M is a positive integer, and M is less than or equal to N; the sending module 710 is configured to: transmitting a CSI report, wherein the CSI report comprises CSI and/or CMR indication information, the CMR indication information is used for indicating one CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises at least one of the following information: PMI, CQI, RI or LI.

Illustratively, the receiving module 720 is configured to: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; receiving second information, wherein the second information is used for indicating L values of the number of CMRs selected by the terminal equipment from the N CMRs, L is an integer greater than 1, and L is less than or equal to N; and receiving third information, wherein the third information indicates the quantity of CSI to be reported corresponding to each value of the L values, the quantity of CSI to be reported corresponding to the ith value Mi of the L values is Ki, mi, ki and i are positive integers, and K _i ≤C(N,M _i ) I is more than or equal to 1 and less than or equal to K; the sending module 710 is configured to: transmitting a CSI report comprisingIndividual CSI and/or->And CMR indication information, wherein the CMR indication information is used for indicating a CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises one or more of PMI, CQI, RI or LI. The above C (N, M) _i ) The number of combinations that can be selected when Mi CMRs are selected from the N CMRs is represented.

Illustratively, the receiving module 720 is configured to: receiving first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; and receiving second information, wherein the second information is used for indicating at least one CMR set determined by the terminal equipment from the N CMRs, and any CMR set in the at least one CMR set comprises at least one CMR; the sending module 710 is configured to: and sending a CSI report, wherein the CSI report comprises the CSI corresponding to the at least one CMR set.

In an alternative example, it will be understood by those skilled in the art that the apparatus 700 may be specifically a terminal device in the foregoing embodiment, and the apparatus 700 may be used to perform each flow and/or step corresponding to the terminal device in the foregoing method embodiment, which is not repeated herein.

In another possible implementation, the apparatus 700 is a network device, or a chip, a system-on-chip of a network device. The apparatus 700 may be used to implement the method corresponding to the network device in the method 300 described above. Alternatively, the apparatus 700 may be configured to implement the method corresponding to the network device in the foregoing method 400. Alternatively, the apparatus 700 may be configured to implement the method corresponding to the network device in the foregoing method 500. Alternatively, the apparatus 700 may be configured to implement the method corresponding to the network device in the method 600 described above.

Illustratively, the receiving module 720 is configured to: receiving first indication information, wherein the first indication information is used for indicating a first channel measurement resource CMR set determined by terminal equipment; the processing module 730 is configured to: determining whether to configure a CMR for the terminal device; the sending module 710 is configured to: and in the case that the CMR needs to be configured for the terminal equipment, sending first configuration information, wherein the first configuration information is used for indicating a second CMR set, and the second CMR set comprises CMRs configured for the terminal equipment by the network equipment.

Illustratively, the transmitting module 710 is configured to: transmitting first information, wherein the first information is used for indicating N CMRs configured for terminal equipment, and N is a positive integer; and sending second information, wherein the second information is used for indicating the number M of CMRs selected by the terminal equipment from the N CMRs, M is a positive integer, and M is less than or equal to N; the receiving module 720 is configured to: receiving a CSI report, wherein the CSI report comprises CSI and/or CMR indication information, the CMR indication information is used for indicating one CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises at least one of the following information: PMI, CQI, RI or LI.

Illustratively, the transmitting module 710 is configured to: transmitting first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; transmittingThe second information is used for indicating L values of the number of CMRs selected by the terminal equipment from the N CMRs, wherein L is an integer greater than 1 and is less than or equal to N; and sending third information, where the third information indicates the quantity of CSI to be reported corresponding to each of the L values, where the quantity of CSI to be reported corresponding to the ith value Mi in the L values is Ki, mi, ki and i are positive integers, and K _i ≤C(N，M _i ) I is more than or equal to 1 and less than or equal to K; the receiving module 720 is configured to: receiving a CSI report, the CSI report comprisingIndividual CSI and/or->And CMR indication information, wherein the CMR indication information is used for indicating a CMR set determined by the terminal equipment from the N CMRs, and the CSI comprises one or more of PMI, CQI, RI, LI.

Illustratively, the transmitting module 710 is configured to: transmitting first information, wherein the first information is used for indicating N CMRs configured for the terminal equipment, and N is a positive integer; and transmitting second information, wherein the second information is used for indicating at least one CMR set determined by the terminal equipment from the N CMRs, and at least one CMR included in any CMR set in the at least one CMR set; the receiving module 720 is configured to: and receiving a CSI report, wherein the CSI report comprises the CSI corresponding to the at least one CMR set.

In an alternative example, it will be understood by those skilled in the art that the apparatus 700 may be specifically a network device in the foregoing method embodiment, and the apparatus 700 may be configured to perform each flow and/or step corresponding to the network device in the foregoing method embodiment, which is not described herein for avoiding repetition.

It should be appreciated that the apparatus 700 herein is embodied in the form of functional modules. The term module herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 700 may be specifically a terminal device or a network device in the foregoing embodiment, or the functions of the terminal device or the network device in the foregoing embodiment may be integrated in the apparatus 700, and the apparatus 700 may be used to execute each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, which is not repeated herein.

The apparatus 700 has a function of implementing corresponding steps executed by the terminal device or the network device in the method; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. For example, the transmitting module 710 may be a communication interface, such as a transceiver interface.

Fig. 8 is another communication device 800 provided in an embodiment of the present application. The apparatus 800 includes a processor 810, a memory 820, and a transceiver 830. The processor 810, the memory 820 and the transceiver 830 are connected through an internal connection path, where the memory 820 is used to store instructions, and the processor 810 is used to execute the instructions stored in the memory 820, so that the apparatus 800 can execute the communication method provided by the above method embodiment.

It should be understood that the functions of the apparatus 700 in the foregoing embodiments may be integrated in the apparatus 800, and the apparatus 800 may be configured to perform the steps and/or flows corresponding to the terminal device in the foregoing method embodiments, or the apparatus 800 may be further configured to perform the steps and/or flows corresponding to the network device in the foregoing method embodiments.

The memory 820 may optionally include read-only memory and random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type. The processor 810 may be configured to execute instructions stored in the memory, and when the processor executes the instructions, the processor 810 may execute steps and/or flows corresponding to the terminal device in the above method embodiment, or the processor 810 may execute steps and/or flows corresponding to the network device in the above method embodiment.

It should be appreciated that in embodiments of the present application, the processor 810 may be a central processing unit (central processing unit, CPU), the processor 810 may also be other general purpose processors, digital signal processors (digital signal process, DSP), ASIC, field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic devices, discrete hardware components, or the like. The processor 810 may be a microprocessor or the processor 810 may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.

The present application also provides a computer readable medium having stored thereon a computer program which, when executed by a computer, implements the functions of the terminal device or the network device in any of the method embodiments described above.

The present application also provides a computer program product which, when executed by a computer, implements the functions of the terminal device or the network device in any of the above method embodiments.

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

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

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

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

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting channel state information, applied to a terminal device, the method comprising:

transmitting first indication information, wherein the first indication information is used for indicating a first channel measurement resource CMR set determined by the terminal equipment;

under the condition that the first configuration information is not received within a preset period, sending Channel State Information (CSI) corresponding to the first CMR set to network equipment, or

Transmitting CSI corresponding to a second CMR set to the network equipment when the first configuration information is received in the preset period;

the first configuration information is used for configuring the second CMR set, and the second CMR set comprises CMRs configured by network equipment for the terminal equipment.

2. The method of claim 1, wherein prior to said transmitting the first indication information, the method further comprises:

and receiving second configuration information, wherein the second configuration information is used for configuring N CMRs for the terminal equipment, the CMRs in the first CMR set are from the N CMRs, and N is a positive integer.

3. The method of claim 2, wherein prior to said transmitting the first indication information, the method further comprises:

And receiving second indicating information, wherein the second indicating information is used for indicating the number M of CMRs included in the first CMR set, M is a positive integer, and M is less than or equal to N.

4. A method according to claim 3, wherein after said receiving the second indication information, the method further comprises:

receiving third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs;

and selecting Q CMRs from the remaining CMRs except the P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+Q=M.

5. The method of claim 2, wherein prior to said transmitting the first indication information, the method further comprises:

and receiving second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the terminal equipment, M is a positive integer, and M is less than or equal to N.

6. The method of claim 5, wherein the first set of CMRs comprises Q CMRs;

after the receiving the second indication information, the method further comprises:

And selecting M CMRs from the remaining CMRs except the P CMRs in the N CMRs based on the third indication information, wherein P and Q are positive integers, and P+M=Q.

7. The method according to any one of claims 2 to 6, wherein the first indication information is carried in a bitmap, N bits in the bitmap being in one-to-one correspondence with the N CMRs, each bit being used to indicate whether the corresponding CMR is used by the terminal device to determine CSI; or alternatively, the first and second heat exchangers may be,

the first indication information comprises indexes corresponding to the first CMR set, the indexes are determined according to a predefined mapping relation, and the mapping relation is used for indicating one-to-one correspondence between at least one CMR set and at least one index.

8. The method according to claim 3 or 4, wherein the first indication information includes indication information CRI of reference signal resources of M channel state information in one-to-one correspondence with M CMRs.

9. The method of claim 6, wherein the first indication information comprises Q CRIs in one-to-one correspondence with the Q CMRs.

10. A method for transmitting channel state information, applied to a network device, the method comprising:

Receiving first indication information, wherein the first indication information is used for indicating a first channel measurement resource CMR set determined by terminal equipment;

determining whether to configure a CMR for the terminal device;

and in the case that the CMR needs to be configured for the terminal equipment, sending first configuration information, wherein the first configuration information is used for indicating a second CMR set, and the second CMR set comprises CMRs configured for the terminal equipment by the network equipment.

11. The method according to claim 10, wherein the method further comprises:

and receiving Channel State Information (CSI) from the terminal equipment, wherein the CSI corresponds to the CMR.

12. The method according to claim 10 or 11, characterized in that before said receiving the first indication information, the method further comprises:

and sending second configuration information, wherein the second configuration information is used for configuring N CMRs for the terminal equipment, the CMRs in the first CMR set are from the N CMRs, and N is a positive integer.

13. The method of claim 12, wherein prior to the receiving the first indication information, the method further comprises:

and sending second indicating information, wherein the second indicating information is used for indicating the number M of CMRs included in the first CMR set, M is a positive integer, and M is less than or equal to N.

14. The method of claim 13, wherein after the sending the second configuration information, the method further comprises:

and sending third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, and the P CMRs belong to the first CMR set, and P is a positive integer.

15. The method of claim 12, wherein prior to said transmitting the first indication information, the method further comprises:

and sending second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the terminal equipment, M is a positive integer, and M is less than or equal to N.

16. The method of claim 15, wherein the first set of CMRs comprises Q CMRs;

before the sending the second indication information, the method further comprises:

and sending third indication information, wherein the third indication information is used for indicating P CMRs determined by the terminal equipment from the N CMRs, the P CMRs belong to the first CMR set, P is a positive integer, and P+M=Q.

17. The method according to any of claims 12 to 16, wherein the first indication information is carried in a bitmap, N bits in the bitmap being in one-to-one correspondence with the N CMRs, each bit being for indicating whether the corresponding CMR is used by the terminal device for determining CSI; or alternatively, the first and second heat exchangers may be,

18. The method according to claim 13 or 14, wherein the first indication information comprises indication information CRI of reference signal resources of M channel state information in one-to-one correspondence with M CMRs.

19. The method of claim 16, wherein the first indication information comprises Q CRIs in one-to-one correspondence with the Q CMRs.

20. A communication device, comprising:

a sending module, configured to send first indication information, where the first indication information is used to indicate a first channel measurement resource CMR set determined by the device; and sending Channel State Information (CSI) corresponding to the first CMR set to a network device when first configuration information is not received within a preset period, or sending CSI corresponding to a second CMR set to the network device when the first configuration information is received within the preset period, wherein the first configuration information is used for configuring the second CMR set, and the second CMR set comprises CMRs configured by the network device for the device.

21. The apparatus of claim 20, wherein the apparatus further comprises:

the device comprises a receiving module, a first configuration module and a second configuration module, wherein the receiving module is used for receiving second configuration information, the second configuration information is used for configuring N CMRs for the device, the CMRs in the first CMR set are from the N CMRs, and N is a positive integer.

22. The apparatus of claim 21, wherein the receiving module is further configured to:

23. The apparatus of claim 22, wherein the receiving module is further configured to:

receiving third indication information, wherein the third indication information is used for indicating the device to determine P CMRs from the N CMRs;

the apparatus further comprises: and a processing module, configured to select Q CMRs from the remaining CMRs except for the P CMRs from the N CMRs based on the third indication information, where P and Q are both positive integers, and p+q=m.

24. The apparatus of claim 23, wherein the receiving module is further configured to:

and receiving second indication information, wherein the second indication information is used for indicating the number M of CMRs selected by the device, M is a positive integer, and M is less than or equal to N.

25. The apparatus of claim 22, wherein the first set of CMRs comprises Q CMRs;

the receiving module is further configured to: receiving third indication information, wherein the third indication information is used for indicating P CMRs determined by the device from the N CMRs;

the apparatus further comprises: and a processing module, configured to select M CMRs from the remaining CMRs of the N CMRs except the P CMRs, where P and Q are both positive integers, and p+m=q.

26. The apparatus according to any one of claims 21 to 25, wherein the first indication information is carried in a bitmap, N bits in the bitmap being in one-to-one correspondence with the N CMRs, each bit being used to indicate whether the corresponding CMR is used by the apparatus to determine CSI; or alternatively, the first and second heat exchangers may be,

27. The apparatus according to claim 22 or 23, wherein the first indication information comprises indication information CRI of reference signal resources of M channel state information in one-to-one correspondence with M CMRs.

28. The apparatus of claim 25, wherein the first indication information comprises Q CRIs in one-to-one correspondence with the Q CMRs.

29. A communication device, comprising:

the receiving module is used for receiving first indication information, wherein the first indication information is used for indicating a first channel measurement resource CMR set determined by the terminal equipment;

a processing module, configured to determine whether to configure a CMR for the terminal device;

and the sending module is used for sending first configuration information when the CMR needs to be configured for the terminal equipment, wherein the first configuration information is used for indicating a second CMR set, and the second CMR set comprises the CMR configured by the device for the terminal equipment.

30. The apparatus of claim 29, wherein the receiving means is further for:

31. The apparatus of claim 29 or 30, wherein the transmitting module is further configured to:

32. The apparatus of claim 31, wherein the means for transmitting is further configured to:

33. The apparatus of claim 32, wherein the means for transmitting is further configured to:

34. The apparatus of claim 31, wherein the means for transmitting is further configured to:

35. The apparatus of claim 34, wherein the first set of CMRs comprises Q CMRs;

the sending module is further configured to:

36. The apparatus according to any one of claims 31 to 35, wherein the first indication information is carried in a bitmap, N bits in the bitmap being in one-to-one correspondence with the N CMRs, each bit being for indicating whether the corresponding CMR is used by the terminal device for determining CSI; or alternatively, the first and second heat exchangers may be,

37. The apparatus according to claim 32 or 33, wherein the first indication information comprises indication information CRI of reference signal resources of M channel state information in one-to-one correspondence with M CMRs.

38. The apparatus of claim 35, wherein the first indication information comprises Q CRIs in one-to-one correspondence with the Q CMRs.

39. A communication device comprising a processor and a memory, the memory for storing a computer program, the processor for executing the computer program to cause the communication device to implement the method of any one of claims 1 to 19.

40. A communication system comprising the apparatus of any one of claims 20 to 28 and the apparatus of any one of claims 29 to 38; or comprises the communication device of claim 39.

41. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the method of any of claims 1 to 19.

42. A computer program product comprising a computer program which, when run, implements the method of any one of claims 1 to 19.