Information transmission method and device

Abstract

The application provides an information transmission method and device, wherein the method comprises: a terminal device generates first indication information, the first indication information comprises: resource pair number information and first information; wherein the resource pair information is used for indicating: a number of resource pairs supported by the terminal device in one reference signal resource set, and / or a number of resource pairs supported by the terminal device in one frequency unit; the first information comprises at least one or more of port number information, resource number information or total port number information; the first information is associated with the resource pair information; and the terminal device transmits the first indication information. Through the method, the terminal device reporting the first indication information can indicate the CSI processing capability of the terminal device under the NCJT measurement assumption, and the problem of low reporting of the capability of the terminal device when only reporting the CSI processing capability under the single-TRP measurement assumption can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to an information transmission method and device. BACKGROUND

[0002] In the 5th generation (5G) wireless communication system, a new radio (NR) system, in order to improve the downlink performance, a multi-transmission reception point (TRP) transmission technology, i.e. a non-coherent joint transmission (NCJT) technology, is introduced. When the multi-TRP transmission technology is used, at most 2 TRPs can simultaneously provide data transmission services for a same terminal device.

[0003] In a communication process, a TRP needs to first acquire channel state information (CSI) of a downlink channel between the TRP and a terminal device. Specifically, the TRP transmits a channel state sounding signal in a pre-configured channel measurement resource (CMR), the terminal device receives the channel state sounding signal on the corresponding CMR, and performs channel estimation according to the channel state sounding signal. In addition, the network device further configures a group of interference measurement resources (IMRs) corresponding to the CMR for the terminal device, the terminal device receives a signal on the IMR, performs interference measurement, and calculates the CSI based on the measurement results on the CMR and the IMR, and finally feeds back the CSI to the TRP through an uplink channel. The TRP transmits service data to the terminal device on a downlink data channel according to the CSI fed back by the terminal device. In the early version of the NR, the CSI reporting is a single-TRP measurement assumption, i.e. the terminal device assumes that the subsequent data transmission comes from 1 TRP when calculating the CSI; and after the introduction of the multi-TRP transmission technology, the single-TRP measurement assumption of the CSI cannot well support the measurement needs of the multi-TRP transmission.

[0004] CSI measurement under the single-TRP measurement assumption is different from that under the multi-TRP measurement assumption. Specifically, in the CSI measurement under the single-TRP measurement assumption, the terminal device performs CSI calculation on 1 measurement resource to obtain a set of CSI results. In the CSI measurement under the multi-TRP measurement assumption, the measurement resource for channel measurement comes from 2 different TRPs, and therefore the signals interfere with each other, resulting in a much higher complexity of CSI measurement. Therefore, the capability of the terminal device in processing CSI measurement and reporting needs to be informed to the network device in advance, so that the network device can configure or trigger CSI measurement and reporting according to the actual capability of the terminal device.

[0005] However, how the terminal device reports the capability so that the network device can accurately obtain the capability of the terminal device in processing CSI calculation under different measurement assumptions is a problem to be solved. SUMMARY

[0006] The present application provides a kind of information transmission method and device, to in the multi-TRP transmission scene, so that network equipment obtains the capability of terminal device in processing different measurement assumption CSI calculation.

[0007] In a first aspect, the present application provides a data transmission method, the execution subject of the method is a terminal device or a module in the terminal device, and here the terminal device is taken as the execution subject for example. The method comprises: the terminal device generates first indication information, the first indication information comprises: at least one first information and at least one first resource pair information, one first information is associated with one first resource pair information;Or the first indication information comprises: at least one first information, one first information is associated with one resource pair number;Wherein, the first resource pair information is used to indicate: the number of resource pairs supported by the terminal device in one reference signal resource set and / or the number of resource pairs supported by the terminal device in one frequency unit;The first information at least includes one or more of first port number information, first resource number information or first port total number information;The terminal device sends the first indication information.

[0008] Through the method, the first indication information reported by the terminal device can indicate the number of resource pairs supported by the terminal device, so as to indicate the CSI processing capability of the terminal device under the NCJT measurement assumption, and the problem of low reporting of capability when the terminal device only reports the CSI processing capability under the single-TRP measurement assumption can be avoided.

[0009] In a possible implementation manner, the frequency unit is one or more carriers;Or the frequency unit is one or more frequency bands;Or the frequency unit is one or more frequency band combinations;Or the frequency unit is one or more bandwidth parts.

[0010] In a possible implementation, the first port number information is used for indicating: a maximum number of transmission ports within one resource, and / or a maximum number of transmission ports of one resource within one resource pair.

[0011] In the embodiments of the present application, the maximum number of transmission ports supported within one resource determines the maximum complexity in any CSI measurement, and the terminal device can report the maximum number of transmission ports supported within one resource, so that the complexity corresponding to any CSI measurement configured by the network device does not exceed the hardware capability of the terminal device. In addition, the maximum number of transmission ports supported by one resource within one resource pair is indicated by the first port information, so that the network device can obtain the maximum complexity of CSI measurement of the NCJT measurement assumption that can be supported by the terminal device.

[0012] In a possible implementation, the first resource number information is used for indicating: a number of reference signal resources that can be supported by the terminal device within one frequency unit.

[0013] In a possible implementation, the first total port number information is used for indicating: a total number of ports supported by the terminal device within one frequency unit, and / or a total number of ports within a resource pair supported by the terminal device within one frequency unit.

[0014] In the embodiments of the present application, the total number of ports supported within one frequency unit determines the maximum complexity of all CSI measurements that can be supported by the terminal device, and the terminal device can report the total number of ports supported within one frequency unit, so that the complexity corresponding to all CSI measurements simultaneously configured by the network device does not exceed the hardware capability of the terminal device. In addition, the terminal device can report the total number of ports within a resource pair supported within one frequency unit to indicate the total complexity of all CSI measurements of the NCJT measurement assumption that can be supported.

[0015] In a possible implementation, the first indication information includes capability information of each frequency band within a frequency band combination; or the first indication information includes capability information of a frequency band combination and capability information of each frequency band.

[0016] In a possible implementation, the method further includes: the terminal device sends second indication information, and the second indication information includes at least one of at least one second information and at least one third information.

[0017] The second information is used for indicating that, in the same time unit, the channel state information (CSI) measurement supported by the terminal device is combined with a codebook, wherein the CSI measurement at least includes joint CSI measurement on a resource pair, and the codebook combination includes one or more of the following: a type 1 single-panel codebook, a type 1 multi-panel codebook, a type 2 codebook, a type 2 port selection codebook, an enhanced type 2 and R = 1 codebook, an enhanced type 2 and R = 2 codebook, an enhanced type 2 and R = 1 port selection codebook, and an enhanced type 2 and R = 2 port selection codebook.

[0018] The third information includes at least one fourth information and at least one second resource pair information, one fourth information being associated with one second resource pair information; or the third information includes at least one fourth information, one fourth information being associated with one resource pair number; the fourth information at least includes one or more of the following: second port number information, second resource number information, and second total port number information.

[0019] The parameter included in the third information is a capability parameter of the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

[0020] The first resource pair number information included in the first indication information and the first information are used for determining a capability parameter of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

[0021] Through the second indication information, the CSI processing capability of the terminal device under the mixed scheduling of the NCJT measurement assumption and different codebook combinations can be indicated, and the problem of low reporting of the capability when the terminal device only reports the CSI processing capability under the single-TRP measurement assumption and the NCJT measurement assumption respectively can be avoided.

[0022] In a possible implementation manner, the second port number information is used for indicating a maximum number of transmission ports in one resource, and / or a maximum number of transmission ports of one resource in one resource pair.

[0023] The second resource number information is used for indicating a number of reference signal resources that can be supported by the terminal device in one frequency unit.

[0024] The second total port number information is used for indicating a total number of ports supported by the terminal device in one frequency unit, and / or a total number of ports in a resource pair supported by the terminal device in one frequency unit.

[0025] In a possible implementation manner, the second indication information includes capability information of each frequency band in the frequency band combination.

[0026] Alternatively, the second indication information includes capability information of the frequency band combination and capability information of each frequency band.

[0027] In a second aspect, the present application provides a data transmission method, and the execution subject of the method is a network device or a module in the network device. Here, the network device is taken as an example for description. The method comprises: receiving, by the network device, first indication information from a terminal device, wherein the first indication information comprises at least one first information and at least one first resource pair information, and one first information is associated with one first resource pair information; or the first indication information comprises at least one first information, and one first information is associated with a number of resource pairs; wherein the first resource pair information is used to indicate a number of resource pairs supported by the terminal device in a reference signal resource set and / or a number of resource pairs supported by the terminal device in one frequency unit; the first information comprises one or more of first port number information, first resource number information or first total port number information; and the network device configures channel measurement resources for the terminal device according to the first indication information.

[0028] In a possible implementation, the frequency unit is one or more carriers; or the frequency unit is one or more frequency bands; or the frequency unit is one or more frequency band combinations; or the frequency unit is one or more bandwidth parts.

[0029] In a possible implementation, the first port number information is used to indicate a maximum number of transmission ports in one resource and / or a maximum number of transmission ports of one resource in one resource pair.

[0030] In a possible implementation, the first resource number information is used to indicate a number of reference signal resources that can be supported by the terminal device in one frequency unit.

[0031] In a possible implementation, the first total port number information is used to indicate a total number of ports supported by the terminal device in one frequency unit and / or a total number of ports in a resource pair supported by the terminal device in one frequency unit.

[0032] In a possible implementation, the first indication information comprises capability information of each frequency band in a frequency band combination; or the first indication information comprises capability information of a frequency band combination and capability information of each frequency band.

[0033] In a possible implementation, the network device receives second indication information from the terminal device, the second indication information containing at least one of at least one second information and at least one third information; the second information is used to indicate that, in a same time unit, a channel state information (CSI) measurement and a codebook combination supported by the terminal device, wherein the CSI measurement contains at least joint CSI measurement on a resource pair, and the codebook combination includes one or more of the following: a type 1 single-panel codebook, a type 1 multi-panel codebook, a type 2 codebook, a type 2 port selection codebook, an enhanced type 2 and R = 1 codebook, an enhanced type 2 and R = 2 codebook, an enhanced type 2 and R = 1 port selection codebook, and an enhanced type 2 and R = 2 port selection codebook; the third information includes at least one fourth information and at least one second resource pair information, one fourth information being associated with one second resource pair information; or the third information includes at least one fourth information, one fourth information being associated with a number of resource pairs; the fourth information includes one or more of the following: second port number information, second resource number information, and second total port number information.

[0034] The parameter included in the third information is a capability parameter of the CSI measurement and the codebook combination supported by the terminal device indicated by the second information; the first resource pair number information included in the first indication information and the first information are used to determine a capability parameter of the CSI measurement supported by the terminal device under the CSI measurement and the codebook combination supported by the terminal device indicated by the second information.

[0035] In a possible implementation, the second port number information is used to indicate a maximum number of transmission ports in one resource, and / or a maximum number of transmission ports of one resource in one resource pair; the second resource number information is used to indicate a number of reference signal resources that can be supported by the terminal device in one frequency unit; and the second total port number information is used to indicate a total number of ports supported by the terminal device in one frequency unit, and / or a total number of ports in a resource pair supported by the terminal device in one frequency unit.

[0036] In a possible implementation, the second indication information contains capability information of each frequency band in a frequency band combination; or the second indication information contains capability information of the frequency band combination and capability information of each frequency band.

[0037] In a third aspect, the present application also provides a communication apparatus, which has any of the methods provided in the first aspect. The communication apparatus can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0038] In a possible implementation, the communication apparatus includes a processor configured to support the communication apparatus to perform the corresponding functions of the terminal device in the above-mentioned method. The communication apparatus can further include a memory coupled to the processor, which stores program instructions and data necessary for the communication apparatus. Optionally, the communication apparatus further includes an interface circuit for supporting the communication apparatus to communicate with devices such as network devices.

[0039] In a possible implementation, the communication apparatus includes corresponding functional modules for implementing the steps in the above-mentioned method respectively. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

[0040] In a possible implementation, the structure of the communication apparatus includes a processing unit and a communication unit, which can perform the corresponding functions in the above-mentioned method examples, for details, refer to the description of the method provided in the first aspect, which will not be repeated here.

[0041] In a possible implementation, the structure of the communication apparatus includes a processing unit and a communication unit, which can perform the corresponding functions in the above-mentioned method examples, for details, refer to the description of the method provided in the first aspect, which will not be repeated here.

[0042] In a possible implementation, the communication apparatus includes a processor configured to support the communication apparatus to perform the corresponding functions of the network device in the above-mentioned method. The communication apparatus can further include a memory coupled to the processor, which stores program instructions and data necessary for the communication apparatus. Optionally, the communication apparatus further includes an interface circuit for supporting the communication apparatus to communicate with devices such as terminal devices.

[0043] In a possible implementation, the communication apparatus includes corresponding functional modules for implementing the steps in the above-mentioned method respectively. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

[0044] In a possible implementation, the structure of the communication apparatus includes a processing unit and a communication unit, which can perform the corresponding functions in the above-mentioned method examples, for details, refer to the description of the method provided in the first aspect, which will not be repeated here.

[0045] In a fifth aspect, there is provided a communication apparatus comprising a processor and an interface circuit for receiving signals from other communication apparatuses outside the communication apparatus and transmitting the signals to the processor or sending signals from the processor to other communication apparatuses outside the communication apparatus, and the processor is configured to execute computer programs or instructions to implement the method in any possible implementation of any of the preceding first aspect.

[0046] In a sixth aspect, there is provided a communication apparatus comprising a processor and an interface circuit for receiving signals from other communication apparatuses outside the communication apparatus and transmitting the signals to the processor or sending signals from the processor to other communication apparatuses outside the communication apparatus, and the processor is configured to execute computer programs or instructions to implement the method in any possible implementation of any of the preceding second aspect.

[0047] In a seventh aspect, there is provided a communication apparatus comprising a processor and a memory storing computer programs or instructions, and the processor is configured to execute the computer programs or instructions stored in the memory to implement the method in any possible implementation of any of the preceding first aspect.

[0048] In an eighth aspect, there is provided a communication apparatus comprising a processor and a memory storing computer programs or instructions, and the processor is configured to execute the computer programs or instructions stored in the memory to implement the method in any possible implementation of any of the preceding second aspect.

[0049] In a ninth aspect, there is provided a communication apparatus comprising a processor and an interface circuit, and optionally a memory storing computer programs or instructions, and the interface circuit is configured to receive signals from other communication apparatuses outside the communication apparatus and transmit the signals to the processor or send signals from the processor to other communication apparatuses outside the communication apparatus, and the processor is configured to execute the computer programs or instructions stored in the memory to implement the method in any possible implementation of any of the preceding first aspect.

[0050] In a tenth aspect, there is provided a communication apparatus comprising a processor and an interface circuit, and optionally a memory storing computer programs or instructions, and the interface circuit is configured to receive signals from other communication apparatuses outside the communication apparatus and transmit the signals to the processor or send signals from the processor to other communication apparatuses outside the communication apparatus, and the processor is configured to execute the computer programs or instructions stored in the memory to implement the method in any possible implementation of any of the preceding second aspect.

[0051] In a eleventh aspect, a computer-readable storage medium is provided, which stores a computer program or instructions, when the computer program or instructions are executed on a computer, causing the computer to implement the method in any possible implementation of any of the preceding first aspect to the second aspect.

[0052] In a twelfth aspect, a computer program product is provided, which stores computer readable instructions, when the computer readable instructions are executed on a computer, causing the computer to implement the method in any possible implementation of any of the preceding first aspect to the second aspect.

[0053] In a thirteenth aspect, a chip is provided, which includes a processor, and can further include a memory, for executing computer program or instructions stored in the memory, so that the chip system implements the method in any possible implementation of any of the preceding first aspect to the second aspect.

[0054] In a fourteenth aspect, a communication apparatus is provided, which includes a module for implementing the method in any of the preceding first aspect, and any possible implementation of any aspect.

[0055] In a fifteenth aspect, a communication apparatus is provided, which includes a module for implementing the method in any of the preceding second aspect, and any possible implementation of any aspect.

[0056] In a sixteenth aspect, a communication system is provided, which includes the apparatus (such as a terminal device) of the third aspect and the apparatus (such as a network device) of the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 A network architecture diagram of a NCJT technology based on multiple DCIs suitable for embodiments of the present application;

[0058] Figure 2 A network architecture diagram of a NCJT technology based on single DCI suitable for embodiments of the present application;

[0059] Figure 3 A flowchart of an information transmission method provided by embodiments of the present application;

[0060] Figure 4 A schematic diagram of terminal capability reporting provided by embodiments of the present application;

[0061] Figure 5 A schematic diagram of a communication apparatus structure provided by embodiments of the present application;

[0062] Figure 6 A schematic diagram of a communication apparatus structure provided by embodiments of the present application. DETAILED DESCRIPTION

[0063] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0064] The embodiments of the present application can be applied to various mobile communication systems, such as a new radio (NR) system, a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, and a future communication system, without limitation.

[0065] In the embodiments of the present application, the terminal device is a device with wireless transceiver function or a chip that can be arranged in the device. The device with wireless transceiver function can also be referred to as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a user agent, or a user device. In actual applications, the terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and the like. The embodiments of the present application do not limit the application scenarios. The device with wireless transceiver function and the chip that can be arranged in the device are collectively referred to as a terminal device in the present application.

[0066] In the embodiments of the present application, the network device can be a wireless access device of various modes, for example, it can be a next generation base station (gNB) in an NR system, an evolved Node B (eNB), a radio network controller (RNC) or a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved Node B or a home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission and reception point (TRP or transmission point, TP), etc., or it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a DU under a central unit-distributed (CU-DU) architecture, etc.

[0067] The embodiments of the present application are applicable to scenarios in which a single or multiple transmission and reception devices provide data transmission services for a same terminal device, and any derivative scenario thereof. The transmission and reception device can be a TRP or a remote radio unit (RRU). In the multiple TRP scenario, multiple TRPs can be connected to a same baseband unit (BBU) or different BBUs. Here, the multiple TRPs can belong to a same cell or different cells.

[0068] In the NCJT technology, at most 2 TRPs can simultaneously provide data transmission services for a same terminal device. In terms of implementation, there are currently 2 ways: a multi-downlink control information (DCI) based NCJT technology as shown in Figure 1 , and a single-DCI based NCJT technology as shown in Figure 2 .

[0069] In the NCJT technology based on multiple DCIs, two TRPs each send one DCI to schedule two physical downlink share channels (PDSCHs) to be sent to the same terminal device, wherein one DCI schedules one PDSCH. In the NCJT technology based on single DCI, only one TRP of the two TRPs sends one DCI to schedule one PDSCH, and part of the streams / layers (corresponding to part of the demodulation reference signal (DMRS) ports) in the PDSCH are transmitted by one TRP, and the other part of the streams / layers (corresponding to part of the DMRS ports) are transmitted by the other TRP.

[0070] Before a TRP provides data transmission services for a terminal device, the CSI of the downlink channel between the TRP and the terminal device needs to be obtained in advance. In the early versions of NR, the CSI reporting is based on the measurement assumption of a single TRP, that is, the terminal device assumes that the subsequent data transmission comes from one TRP when calculating the CSI. After the introduction of the multi-TRP transmission technology, the CSI based on the single-TRP measurement assumption will not meet the channel model, and further cannot well support the measurement needs of multi-TRP transmission. Therefore, in the embodiments of the present application, the CSI based on the multi-TRP or NCJT measurement assumption can be introduced.

[0071] For ease of understanding, in the embodiments of the present application, the CSI based on the single-TRP measurement assumption and the CSI based on the multi-TRP or NCJT measurement assumption are defined as follows:

[0072] The CSI based on the single-TRP measurement assumption: other CSI parameters in the CSI except for the channel state information reference signal resource indication information (CSI-RS resource indicator, CRI), for example, the rank indicator (RI) information, the precoding matrix indicator (PMI) information, the channel quality indicator (CQI) information, and the layer indicator (LI) information, and the like. The above information can be measured by the terminal device on the CRI corresponding CMR and the IMR corresponding to the CMR.

[0073] CSI based on NCJT measurement assumption: other CSI parameters in CSI except channel state information reference signal resource indication information, for example, rank indication information, precoding matrix indication information, channel quality indication information, layer indication information, etc., the above information is measured by the terminal device on the 2 CMRs contained in the CMR pair corresponding to the CRI, and the IMR corresponding to the CMR pair.

[0074] In the case of introducing NCJT measurement assumption for CSI reporting, the network device can still configure the terminal device with a NZP CSI-RS resource set composed of Ks non-zero power channel state information reference signal (NZP CSI-RS) resources for channel measurement. The CSI reporting associated with the NZP CSI-RS resource set can contain M single-TRP measurement assumptions and N NCJT measurement assumptions.

[0075] For example, the network device can configure or indicate M (M ≤ Ks) NZP CSI-RS resources in the Ks NZP CSI-RS resources, that is, configure or indicate M CMRs and the IMRs associated therewith. The terminal device performs CSI calculation according to the single-TRP measurement assumption on the M CMRs and the IMRs associated therewith, at this time, the above-mentioned NZP CSI-RS resource set contains M single-TRP measurement assumptions.

[0076] The network device can also configure or indicate N (N≥1) CMR pairs (channel measurement resource pairs) in the Ks NZP CSI-RS resources, each CMR pair containing 2 NZP CSI-RS resources, each NZP CSI-RS resource being associated with a different TRP, i.e., from the perspective of configuration, the 2 NZP CSI-RS resources corresponding to the same CMR pair are associated with 2 different TCI state information, the TCI state information containing QCL information of the NZP CSI-RS resource, and the terminal device can receive the reference signal on the corresponding NZP CSI-RS resource according to the QCL information contained in the TCI state information. The terminal device can perform CSI calculation on the 2 NZP CSI-RS resources contained in each CMR pair according to the NCJT measurement assumption, so when N CMR pairs are configured, it means that there are N NCJT measurement assumptions.

[0077] Alternatively, the CSI reporting associated with the NZP CSI-RS resource set can contain Ks single-TRP measurement assumptions. At this time, the network device can configure an interference measurement resource set associated with the NZP CSI-RS resource set, and the terminal device performs CSI calculation on the Ks NZP CSI-RS resources and the associated IMR according to the single-TRP measurement assumption.

[0078] The relationship between the CSI report and the codebook type is introduced below. The NR system currently supports 6 different PMI codebook types for CSI reporting, including: type 1 single-panel codebook; type 1 multi-panel codebook; type 2 codebook; type 2 port selection codebook; enhanced type 2 codebook; and enhanced type 2 port selection codebook.

[0079] Each CSI report corresponds to one codebook type, which is indicated by the network device to the terminal device. Since the hardware computing capability of the terminal device is fixed, the processing capability for CSI computation of different codebook types is also different. In order to match the configuration of the network device with the processing capability of the terminal device, for each codebook type supported by the terminal device, and for each hybrid codebook type (i.e., the computing capability of the terminal device for simultaneously processing multiple CSI reports based on multiple different types of codebook types), the terminal device can report the capability of CSI measurement reporting to the network device by a set of three-tuple parameters. The three-tuple parameters can be represented as {P, S, T}, and the three-tuple parameters include: the maximum number of transmission ports of one resource (maxNumberTxPortsPerResource), denoted by P; the maximum number of resources (maxNumberResourcePerBand), denoted by S; and the total number of transmission ports (totalNumberTxPortsPerBand), denoted by T. It should be understood that the order of the three-tuple is not limited herein, and the actual reporting manner can also include direct reporting, index form reporting, or other manners. The terminal device can also report the capability of CSI measurement reporting to the network device by other manners.

[0080] For example, the terminal device reports three three-tuple capability parameters: {8, 8, 64}, {16, 4, 64}, and {32, 2, 64}, and the following configurations satisfy the reported capability of the terminal device:

[0081] 6 NZP CSI-RS resources of 8 ports; in the above configuration, the maximum number of transmission ports of one resource is 8, the number of resources is 6, and the total number of transmission ports is 48, which does not exceed the capability parameter {8, 8, 64}.

[0082] 2 NZP CSI-RS resources of 8 ports and 2 NZP CSI-RS resources of 16 ports; in the above configuration, the maximum number of transmission ports of one resource is 16, the number of resources is 4, and the total number of transmission ports is 48, which does not exceed the capability parameter {16, 4, 64}.

[0083] However, the following configuration can exceed the reported capability of the terminal device:

[0084] 10 NZP CSI-RS resources of 8 ports; in the above configuration, the maximum number of transmission ports of one resource is 8, the number of resources is 10, and the total number of transmission ports is 80, which exceeds the number of resources and the total number of transmission ports in any one of the reported capability parameters {8, 8, 64}, {16, 4, 64}, and {32, 2, 64} of the terminal device.

[0085] 2 8-port NZP CSI-RS resources, 1 32-port NZP CSI-RS resource; in the above configuration, the maximum number of transmission ports of one resource is 32, the number of resources is 3, and the total number of transmission ports is 48, which exceeds the capability parameter {8, 8, 64} or {16, 4, 64} reported by the terminal device on the maximum port number, and exceeds the capability parameter {32, 2, 64} reported by the terminal device on the number of resources.

[0086] CSI measurement and reporting is very complex for a terminal device, and the capability of the terminal device to process CSI measurement and reporting needs to be informed to the network device in advance, so that the network device can configure or trigger CSI measurement and reporting according to the actual capability of the terminal device. However, at present, the terminal device only considers the CSI calculation under the single-TRP test assumption when reporting the capability, and does not consider the CSI calculation under the NCJT measurement assumption.

[0087] The complexity of CSI measurement under the single-TRP measurement assumption and the complexity of CSI measurement under the multi-TRP measurement assumption are different. Specifically, in the CSI calculation under the single-TRP measurement assumption, the terminal device can perform CSI calculation on 1 measurement resource to obtain a set of CSI results. In the CSI calculation under the NCJT measurement mode, the terminal device can perform CSI calculation on 2 measurement resources to obtain a set of CSI results. However, the signals from the two TRPs interfere with each other, and the channel measurement result of the terminal device on the measurement resource corresponding to TRP1 will be interfered by the signal transmitted by TRP2. Similarly, the channel measurement result of the terminal device on the measurement resource corresponding to TRP2 will also be interfered by the signal transmitted by TRP1. In order to obtain better performance, the terminal device needs to perform joint CSI calculation on 2 measurement resources. In the CSI calculation under the single-TRP measurement mode, the terminal device only needs to perform independent CSI calculation on each measurement resource, and the required complexity is much lower. That is, the required calculation complexity of joint CSI calculation on 2 measurement resources according to the NCJT measurement assumption is much higher than the total calculation complexity of independent CSI calculation on 2 measurement resources according to the single-TRP measurement assumption.

[0088] The measurement resource herein refers to an NZP CSI-RS resource for channel measurement, and a resource associated with the NZP CSI-RS resource for interference measurement, wherein the resource for interference measurement is a CSI-IM resource, or the resource for interference measurement is a CSI-IM resource and an NZP CSI-RS resource. In the measurement, the NZP CSI-RS resource for channel measurement is from two different TRPs, simulating NCJT transmission. That is, the calculation complexity required for joint CSI calculation according to the NCJT measurement assumption on two measurement resources is much higher than the total calculation complexity required for independent CSI calculation according to the single-TRP measurement assumption on two measurement resources.

[0089] For example, the channel parameter between TRP1 and the terminal device is H1, H1 is an MxN1 matrix, where M is the number of receive antennas configured by the terminal device, and N1 is the number of transmit antennas configured by TRP1; the channel parameter between TRP2 and the terminal device is H2, H2 is an MxN2 matrix, where N2 is the number of transmit antennas configured by TRP2. The terminal device estimates the channel parameter H1 based on the reference signal sent by TRP1; similarly, the terminal device can also estimate the channel parameter H2 based on the NZP CSI-RS sent by TRP2.

[0090] A method for realizing CSI reporting of multi-TRP measurement assumption is realized by twice single-TRP measurement assumption, specifically, the base station configures the terminal device to estimate the CSI for TRP1 based on H1, and the terminal device estimates the optimal precoding matrix P1 for transmission, P1 is an N1xr1 matrix, where r1 represents the number of data streams / levels, P1 is an optimal code word determined in a preset code book (containing a plurality of code words), and the index information corresponding to the code word is called precoding matrix index (PMI), and r1 corresponds to the rank indication (RI) fed back by the terminal device:

[0091]

[0092] That is, all possible codewords in the preset codebook are traversed (where the number of columns of a certain specific codeword corresponds to the rank number of the pre-coding matrix), so that the Shannon capacity is obtained based on the signal to interference plus noise ratio (SINR). In actual implementation, other objective functions can also be used, for example, some variants of the Shannon capacity. The specific objective function used is not limited by the embodiments of the present application. Similarly, the base station configures the terminal device to estimate the CSI for TRP2 based on H2:

[0093]

[0094] In fact, in the multi-TRP transmission process, the SINR1 of the terminal device receiving the signal from TRP1 and the SINR2 of the terminal device receiving the signal from TRP2 should be expressed as:

[0095]

[0096]

[0097] The estimation result of {P1, r1} will affect the estimation result of {P2, r2}, and vice versa, so the terminal device needs to perform joint estimation to obtain the optimal performance, that is, the following form needs to be satisfied:

[0098]

[0099] According to equation (5), since 4 optimal vectors need to be jointly estimated, the complexity of the above joint estimation is much higher than the complexity of estimating 2 groups of 2 optimal vectors based on equations (1) and (2), respectively.

[0100] Based on the above description, since the complexity of the CSI measurement under the single-TRP measurement assumption is different from the complexity of the CSI measurement under the NCJT measurement assumption, on the one hand, when both the single-TRP CSI measurement and the NCJT CSI measurement exist, if the terminal device reports a set of CSI measurement terminal device capability information according to the prior art, the following two problems can occur: under-reporting problem and over-capacity configuration problem.

[0101] For example, assume that the actual CSI processing capability of the terminal device is as follows:

[0102] The CSI processing capability under the NCJT measurement assumption is: capable of simultaneously processing 2 channel measurement resource (CMR) pairs, wherein the CMR pair is associated with 2 NZP CSI-RS resources, and the maximum number of ports of the NZP CSI-RS resources in the resource pair is not more than 8; or simultaneously processing 1 CMR pair, and the maximum number of ports of each NZP CSI-RS resource in the 1 NZP CSI-RS resource pair is not more than 16.

[0103] The CSI processing capability under the single-TRP measurement assumption is: capable of simultaneously processing 4 NZP CSI-RS resources, and the maximum number of ports of each NZP CSI-RS resource is not more than 16; or simultaneously processing 8 NZP CSI-RS resources, and the maximum number of ports of each NZP CSI-RS resource is not more than 8.

[0104] If the terminal device reports the terminal device capability information according to the CSI processing capability under the NCJT measurement assumption, the terminal device capability information reported is {8, 4, 32}, {16, 2, 32}. At this time, even if the network device schedules or triggers the terminal device to perform CSI reporting under the single-TRP measurement assumption, the CSI reporting can only be based on the following CSI-RS resource configuration for CSI measurement reporting: 2 16-port NZP CSI-RS resources; or 4 8-port NZP CSI-RS resources.

[0105] However, the actual CSI processing capability of the terminal device is much greater than the above configuration, so the hardware capability of the terminal device cannot be fully utilized, causing the problem of low reporting of capability.

[0106] If the terminal device reports the terminal device capability information according to the CSI processing capability under the single-TRP measurement assumption, the terminal device capability information reported is {8, 8, 64}, {16, 4, 64}. At this time, the network device can configure or trigger the terminal device to perform CSI measurement reporting under the NCJT measurement assumption based on the following channel measurement resource configuration: 4 channel measurement resource pairs, each resource pair containing 2 8-port NZP CSI-RS resources; or 2 channel measurement resource pairs, each resource pair containing 2 16-port NZP CSI-RS resources. The above channel measurement resource configuration exceeds the actual CSI processing capability of the terminal device under the NCJT measurement assumption, causing the problem of over-capacity configuration, and the terminal device will not work normally.

[0107] In summary, how the terminal device reports the CSI processing capability to avoid serious low reporting of capability or over-capacity configuration is a problem to be solved. Therefore, an embodiment of the present application provides a method to solve the above problems, which will be described in detail below.

[0108] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems. In the embodiments of the present application, if e is less than f, e can also be replaced by e being less than or equal to f; if e is greater than f, e can also be replaced by e being greater than or equal to f, and vice versa, where e and f respectively represent two parameters compared with each other. For the convenience of description, in the embodiments of the present application, one case is described, which does not represent any limitation.

[0109] As shown in FIG. 1, it is a flowchart of an information transmission method provided by an embodiment of the present application. The method comprises the following steps. Figure 3

[0110] S301: A terminal device generates first indication information.

[0111] S302: The terminal device sends the first indication information to a network device.

[0112] S303: The network device receives the first indication information from the terminal device.

[0113] In the embodiments of the present application, the first indication information can be used to indicate the CSI processing capability of the terminal device under the NCJT measurement assumption.

[0114] Specifically, in the embodiments of the present application, the first indication information comprises at least one first information and at least one first resource pair information, one first information is associated with one first resource pair information; or the first indication information comprises at least one first information, one first information is associated with a number of resource pairs.

[0115] The first resource pair information is used to indicate at least one of the following: the number of resource pairs supported by the terminal device in one reference signal resource set; the number of resource pairs supported by the terminal device in one frequency unit. In one embodiment, the frequency unit is one or more carriers; or the frequency unit is one or more bands (Band); or the frequency unit is one or more band combinations (Band combination, BC); or the frequency unit is one or more bandwidth parts (Bandwidth part, BWP).

[0116] ​In an embodiment of the present application, one resource pair includes two channel measurement resources (CMRs). A channel measurement resource refers to a resource for transmitting a reference signal, which can also be referred to as a reference signal resource. The reference signal can include, but is not limited to, NZP CSI-RS, etc. For the convenience of description, the channel measurement resource can be referred to as a resource in the following description.

[0117] In a possible implementation, the first information can include one or more of the following information:

[0118] The first port number information, the first resource number information, and the first total port number information.

[0119] The first port number information is used to indicate the maximum number of transmission ports supported by the terminal device in one resource. The maximum number of transmission ports supported in one resource is associated with the maximum complexity of any CSI measurement. By reporting the maximum number of transmission ports supported in one resource, the terminal device can ensure that the complexity of any CSI measurement configured by the network device does not exceed the hardware capability of the terminal device.

[0120] Alternatively, the first port number information is used to indicate the maximum number of transmission ports supported by the terminal device in one resource in one resource pair. Since the CSI measurement complexity of the NCJT measurement assumption can be much larger than that of the single-TRP measurement assumption, it is very important to indicate the CSI measurement complexity of the NCJT measurement assumption. Therefore, by indicating the maximum number of transmission ports supported by the terminal device in one resource in one resource pair through the first port information, the network device can obtain the maximum CSI measurement complexity of the NCJT measurement assumption that can be supported by the terminal device.

[0121] Alternatively, the first port number information is used to indicate the maximum number of transmission ports supported in one resource and the maximum number of transmission ports supported by the terminal device in one resource in one resource pair. Since the CSI measurement complexity of the NCJT measurement assumption is very different from that of the single-TRP measurement assumption, the terminal device can indicate the CSI measurement complexity of the single-TRP measurement assumption that can be supported by reporting the maximum number of transmission ports supported in one resource, and indicate the CSI measurement complexity of the NCJT measurement assumption that can be supported by reporting the maximum number of transmission ports supported by the terminal device in one resource in one resource pair, so as to more accurately indicate the hardware capability of the terminal device.

[0122] The first resource number information is used to indicate the number of reference signal resources that can be supported by the terminal device in one frequency unit.

[0123] The first port total number information is used to indicate a total number of ports supported by the terminal device in one frequency unit. The total number of ports supported in one frequency unit is associated with a maximum complexity of all CSI measurements that can be supported by the terminal device. By reporting the total number of ports supported in one frequency unit, the terminal device can enable the complexity of all CSI measurements corresponding to the simultaneous configuration of the network device to be less than the hardware capability of the terminal device.

[0124] Alternatively, the first port total number information is used to indicate a total number of ports supported by the terminal device in a resource pair in one frequency unit. For example, the terminal device supports 2 resource pairs in one frequency unit, and the terminal device can indicate that the total number of ports supported in the 2 resource pairs is 32 through the first port total number information.

[0125] Since the CSI measurement complexity of the NCJT measurement assumption is much greater than the CSI measurement complexity of the single-TRP measurement assumption, it is very important to indicate the total complexity of the CSI measurement of the NCJT measurement assumption. The terminal device can indicate the total complexity of the CSI measurement of all NCJT measurement assumptions that can be supported by reporting the total number of ports supported in a resource pair in one frequency unit.

[0126] Alternatively, the first port total number information is used to indicate a total number of ports supported by the terminal device in one frequency unit, and a total number of ports supported by the terminal device in a resource pair in one frequency unit. For example, the terminal device supports 2 resource pairs in one frequency unit, and the number of reference signal resources supported in the frequency unit is 8; the terminal device can indicate that the total number of ports supported in the 2 resource pairs is 32 and the total number of ports supported in the 8 reference signal resources is 64 through the first port total number information.

[0127] Since the CSI measurement complexity of the NCJT measurement assumption is much greater than the CSI measurement complexity of the single-TRP measurement assumption, the terminal device can indicate all CSI measurement complexities that can be supported by reporting the total number of ports supported in one frequency unit, including the CSI measurement of the single-TRP measurement assumption and / or the CSI measurement of the NCJT measurement assumption; and the terminal device can more accurately indicate the hardware capability of the terminal device by indicating the total complexity of the CSI measurement of the NCJT measurement assumption through the total number of ports supported in a resource pair in one frequency unit.

[0128] In a possible implementation, the maximum resource group number information reported by the terminal device corresponds to a maximum candidate value a, the maximum candidate value a is associated with a resource number a1, other CSI calculation capability information corresponds to a maximum candidate value b, the maximum candidate value is associated with another resource number b1, and the resource number a1 associated with the maximum candidate value a is less than or equal to the resource number b1 associated with the maximum candidate value b.

[0129] The resource quantity corresponding to the maximum candidate value of the maximum resource quantity information reported by the terminal device is less than or equal to the maximum candidate value of the resource quantity corresponding to the other CSI calculation capability information;

[0130] The transmission port quantity of one resource corresponding to the maximum candidate value of the maximum transmission port quantity information reported by the terminal device is less than or equal to the maximum candidate value of the transmission port quantity corresponding to the other CSI calculation capability information; the total port quantity corresponding to the maximum candidate value of the first total port quantity information reported by the terminal device is less than or equal to the maximum candidate value of the total transmission port quantity corresponding to the other CSI calculation capability information.

[0131] In the embodiments of the present application, implementation manner one, when the first information is associated with the first resource pair information, the first indication information can directly indicate the first resource pair information, that is, the first indication information includes the information of the quantity of resource pairs; implementation manner two, when the first information is associated with the quantity of one resource pair, the first indication information can indirectly indicate the first resource pair information, that is, the first indication information does not include the information of the quantity of resource pairs. The quantity of resource pairs associated with the first information can refer to the quantity of resource pairs supported by the terminal device in one reference signal resource set, and / or the quantity of resource pairs supported by the terminal device in one frequency unit.

[0132] Specifically, in implementation manner one, the first information in the first indication information can be a four-tuple information, and one four-tuple information includes the first resource pair information, and at least one of the first port quantity information, the first resource quantity information or the first total port quantity information.

[0133] For example, taking that one four-tuple information includes four parameter information as an example, one four-tuple information can be represented as {P, S, T, N}. Wherein, P represents the first port quantity information, S represents the first resource quantity information, T represents the first total port quantity information, and N represents the first resource pair information.

[0134] For example, the first indication information reported by the terminal device includes two four-tuple parameter information, which are {8, 8, 64, 3}, {16, 4, 64, 1}. Then the CSI processing capability of the terminal device under the NCJT measurement assumption is:

[0135] The CSI calculation under the NCJT measurement assumption is performed on at most 3 resource pairs, the number of transmission ports contained in 2 resources associated with each resource pair is at most 8, and the CSI calculation under the single-TRP measurement assumption is performed on at most 2 resources with a maximum of 8 ports; or the CSI calculation under the NCJT measurement assumption is performed on at most 1 resource pair, the number of transmission ports contained in 2 resources associated with each resource pair is at most 16, and the CSI calculation under the single-TRP measurement assumption can also be performed on at most 2 resources with a maximum of 16 ports.

[0136] In the second implementation, since the first information is associated with the number of resource pairs, the first information in the first indication information can be a triplet information, each triplet information does not include the first resource pair information, but includes at least one of the first port number information, the first resource number information, or the first total port number information.

[0137] In an implementation, the first indication information can include A1 pieces of first information associated with the number of first resource pairs and A2 pieces of first information associated with the number of second resource pairs, A1 is an integer greater than or equal to 0, and A2 is an integer greater than or equal to 0.

[0138] Suppose the number of first resource pairs is 2 and the number of second resource pairs is 1. The first information associated with the number of first resource pairs is used to indicate that at least one of the first port number information, the first resource number information, or the first total port number information of the terminal device in the case of resource pair number equal to 2.

[0139] Correspondingly, the first information associated with the number of second resource pairs is used to indicate that at least one of the first port number information, the first resource number information, or the first total port number information of the terminal device in the case of resource pair number equal to 1.

[0140] For example, a triplet information includes three parameter information, which can be represented as {P, S, T}. Where P represents the first port number information, S represents the first resource number information, and T represents the first total port number information.

[0141] For example, the first indication information reported by the terminal device includes two triplet parameter information, which are {8, 8, 64} and {16, 4, 64}. Where the resource pair number associated with {8, 8, 64} is 2, and the resource pair number associated with {16, 4, 64} is 1. Then the CSI processing capability of the terminal device under the NCJT measurement assumption is:

[0142] {8,8,64} indicates that the CSI calculation under the NCJT measurement assumption is performed on at most 2 resource pairs, and the number of transmission ports contained in 2 resources associated with each resource pair is at most 8, and at the same time, the CSI calculation under the single-TRP measurement assumption is performed on at most 6 resources with a maximum of 8 ports. Alternatively, {4,4,64} indicates that the CSI calculation under the NCJT measurement assumption is performed on at most 2 resource pairs, and the number of transmission ports contained in 2 resources associated with each resource pair is at most 4, and at the same time, the CSI calculation under the single-TRP measurement assumption is performed on at most 12 resources with a maximum of 4 ports.

[0143] {16,4,64} indicates that the CSI calculation under the NCJT measurement assumption is performed on at most 1 resource pair, and the number of transmission ports contained in 2 resources associated with each resource pair is at most 16, and at the same time, the CSI calculation under the single-TRP measurement assumption is performed on at most 2 resources with a maximum of 16 ports.

[0144] In an embodiment of the present application, the first information included in the first indication information can be capability information of different granularities, which can be CSI processing capability information.

[0145] In a possible implementation, the at least one first information included in the first indication information can include CSI processing capability information of each frequency band (per band per band combination) of the terminal device within the frequency band combination.

[0146] That is, one first information in the first indication information can be used to indicate the CSI processing capability information of the terminal device on one frequency band within one frequency band combination, that is, one first information can be used to indicate one or more of the maximum number of corresponding resource pairs, the maximum number of transmission ports in one resource, the maximum number of resources, or the total number of transmission ports on one frequency band within one frequency band combination.

[0147] For example, the terminal device supports three frequency bands of frequency band A, frequency band B and frequency band C, and the at least one first information included in the first indication information reported by the terminal device can indicate at least one of the following information:

[0148] CSI processing capability information of the terminal device on frequency band A and frequency band B when the terminal device works on frequency band A and frequency band B at the same time;

[0149] CSI processing capability information of the terminal device on frequency band A and frequency band C when the terminal device works on frequency band A and frequency band C at the same time;

[0150] CSI processing capability information of the terminal device on frequency band B and frequency band C when the terminal device works on frequency band B and frequency band C at the same time;

[0151] The terminal device reports the CSI processing capability information of the terminal device in the frequency band A, the frequency band B and the frequency band C when the terminal device works in the frequency band A, the frequency band B and the frequency band C simultaneously.

[0152] It should be noted that the CSI processing capability of the terminal device in the frequency band A can be different when the terminal device works in the frequency band A and the frequency band B simultaneously and when the terminal device works in the frequency band A and the frequency band C simultaneously, and therefore, the above reporting method can provide detailed and complete terminal device capability information.

[0153] In another possible implementation, the at least one first information included in the first indication information can include capability information of the terminal device in a frequency band combination and capability information per band and per band combination.

[0154] That is, one first information in the first indication information can be used to indicate the CSI processing capability information of the terminal device in one frequency band combination, or one first information in the first indication information can be used to indicate the CSI processing capability information of the terminal device when the terminal device works independently in one frequency band.

[0155] For example, the terminal device supports three frequency bands, i.e., the frequency band A, the frequency band B and the frequency band C, and the at least one first information included in the first indication information reported by the terminal device can indicate at least one of the following information:

[0156] CSI processing capability information of the terminal device when the terminal device works independently in the frequency band A;

[0157] CSI processing capability information of the terminal device when the terminal device works independently in the frequency band B;

[0158] CSI processing capability information of the terminal device when the terminal device works independently in the frequency band C;

[0159] Total CSI processing capability information of the terminal device in the frequency band A and the frequency band B when the terminal device works in the frequency band A and the frequency band B simultaneously;

[0160] Total CSI processing capability information of the terminal device in the frequency band A and the frequency band C when the terminal device works in the frequency band A and the frequency band C simultaneously;

[0161] Total CSI processing capability information of the terminal device in the frequency band B and the frequency band C when the terminal device works in the frequency band B and the frequency band C simultaneously;

[0162] Total CSI processing capability information of the terminal device in the frequency band A, the frequency band B and the frequency band C when the terminal device works in the frequency band A, the frequency band B and the frequency band C simultaneously.

[0163] Through the method, the signaling overhead can be reduced under the premise that the terminal device reports more capability information.

[0164] S304: The network device configures channel measurement resources for the terminal device according to the first indication information.

[0165] The process in which the network device specifically configures the channel measurement resources is not described herein. The network device obtains the first indication information, and can, according to the first indication information, perform corresponding configuration of the channel measurement resources for the terminal device according to the CSI measurement capability indicated by the first indication information, so as to ensure that the configured channel measurement resources do not exceed the capability reported by the terminal device, thereby avoiding the problem of over-capacity configuration.

[0166] Through the method provided in the embodiments of the present application, the first indication information reported by the terminal device can indicate the number of resource pairs supported by the terminal device, thereby realizing indication of the CSI processing capability of the terminal device under the NCJT measurement assumption, and avoiding the problem of low reporting of capability when the terminal device only reports the CSI processing capability under the single-TRP measurement assumption.

[0167] On the other hand, the terminal device reports the CSI processing capability information under the NCJT measurement assumption according to its own hardware capability, and also reports the CSI processing capability information under the single-TRP measurement assumption according to its own hardware capability. When the network device configures the terminal device to perform CSI calculation under the single-TRP measurement assumption and CSI calculation under the NCJT measurement assumption at the same time unit, as shown in FIG. 6, the terminal device needs to simultaneously process the CSI calculation under the single-TRP measurement assumption and the CSI calculation under the NCJT measurement assumption at any time unit within the time interval Tx. At this time, the problems of low reporting of capability or over-capacity configuration may also occur. Figure 4

[0168] For example, if the actual hardware processing capability of the terminal device is: the CSI processing capability under the NCJT measurement assumption is: {8, 4, 32} when N = 1, that is, it can simultaneously process NZP CSI-RS resources based on a maximum of 4 ports of 8, and supports a maximum of 1 channel measurement resource pair for CSI calculation containing the NCJT measurement assumption; and the CSI processing capability under the single-TRP measurement assumption is: {16, 4, 64}, that is, it can simultaneously perform CSI calculation under the single-TRP measurement assumption based on a maximum of 4 ports of 16 NZP CSI-RS resources.

[0169] ​The terminal device reports the network device according to the above hardware capability, that is, reports the terminal device capability under the NCJT measurement assumption as N = 1, {8, 4, 32}; and reports the terminal device capability under the single-TRP measurement assumption as {16, 4, 64}. The network device sends configuration information to the terminal device according to the capability reported by the terminal device, the configuration information is used to determine one first NZP CSI-RS resource set, the resource set contains 4 NZP CSI-RS resources with 8 ports, the configuration information is also used to determine that 2 NZP CSI-RS resources in the 4 NZP CSI-RS resources form one channel measurement resource pair; the first configuration information is also used to determine an interference measurement resource set associated with the NZP CSI-RS resource set, the interference measurement resource set contains interference measurement resources associated with the NZP CSI-RS resource and the channel measurement resource pair; the configuration information is also used to determine one second NZP CSI-RS resource set, the resource set contains 4 NZP CSI-RS resources with 16 ports, and the configuration information is also used to determine an interference measurement resource set associated with the NZP CSI-RS resource set, the interference measurement resource set contains interference measurement resources associated with the NZP CSI-RS resource.

[0170] The network device configures the terminal device to perform CSI measurement on one channel measurement resource pair composed of 2 NZP CSI-RS resources with 8 ports in the first NZP CSI-RS resource set and the interference measurement resource associated therewith under the NCJT measurement assumption, and to perform CSI measurement on 4 NZP CSI-RS resources with 8 ports and the interference measurement resource associated therewith under the single-TRP measurement assumption; at the same time, the network device also configures the terminal device to perform CSI measurement on 4 NZP CSI-RS resources with 16 ports in the second NZP CSI-RS resource set and the interference measurement resource associated therewith under the single-TRP measurement assumption. The hardware capability required for the above-mentioned configured CSI measurement is twice the actual hardware capability of the terminal device, which cannot be actually processed by the terminal device, thereby the problem of over-capacity configuration occurs.

[0171] If the terminal device reports the actual hardware capability to the network device by half, that is, the CSI processing capability under the NCJT measurement assumption is reported as: N = 1, {4, 2, 16}; and the CSI processing capability under the single-TRP measurement assumption is reported as: {8, 2, 32}. At this time, the first NZP CSI-RS resource set configured by the network device contains 2 NZP CSI-RS resources with 4 ports, and the channel measurement resource pair contains 2 NZP CSI-RS resources with 4 ports; and the second NZP CSI-RS resource set configured by the network device contains 2 NZP CSI-RS resources with 8 ports. At this time, even if the network device does not simultaneously configure the terminal device to perform CSI measurement under the NCJT measurement assumption on the resources corresponding to the first NZP CSI-RS resource set and to perform CSI measurement under the single-TRP measurement assumption on the resources corresponding to the second NZP CSI-RS measurement set, but performs the corresponding measurement in time, due to the limitation of the terminal device reporting capability, the network device can only configure CSI measurement under the NCJT measurement assumption based on 1 channel measurement resource pair composed of 2 NZP CSI-RS resources with 4 ports or configure CSI measurement under the single-TRP measurement assumption based on 1 NZP CSI-RS resource with a maximum port of 8. The hardware capability of the terminal device can only be used by half. Thus, the problem of low reporting of capability is caused.

[0172] In order to prevent the complexity corresponding to the simultaneous configuration of different measurement assumptions from exceeding the hardware capability of the terminal device, the terminal device reports the capability information lower than the self capability when reporting the CSI measurement capability under the single-TRP measurement assumption and the CSI measurement capability under the NCJT measurement assumption, thereby causing the problem of low reporting of capability. Or, when reporting the CSI measurement capability under the single-TRP measurement assumption and the CSI measurement capability under the NCJT measurement assumption, the terminal device does not consider the simultaneous configuration of different measurement assumptions, and directly reports the CSI measurement capability under the single-TRP measurement assumption and the CSI measurement capability under the NCJT measurement assumption according to the hardware capability, the network device simultaneously configures the terminal device to perform CSI measurement under the single-TRP measurement assumption and CSI measurement under the NCJT measurement assumption, the total complexity required by the simultaneously configured CSI measurement under different measurement assumptions exceeds the capability of the terminal device, thereby causing the problem of over-capacity configuration. In order to avoid the above problems of low reporting of capability and over-capacity configuration, in the embodiment of the present application, the terminal device can also send second indication information to the network device, and the second indication information can indicate the CSI processing capability of the terminal device under the NCJT measurement assumption and the mixed scheduling of different codebook types. The second indication information can include at least one of at least one second information and at least one third information.

[0173] The second information is used to indicate that the terminal device supports at least one of the CSI measurement and the codebook combination in the same time unit; the third information is used to indicate one or more second resource pair quantity information and the following one or more information associated with each second resource pair quantity information: second port quantity information; second resource quantity information; and second total port quantity information. The CSI measurement at least includes joint CSI measurement on the resource pair. The time unit is one or more slots; or the time unit is one or more mini slots; or the time unit is one or more symbols.

[0174] In an implementation manner, one second information can have an association relationship with one third information, that is, the parameter included in the third information is a capability parameter of the CSI measurement and the codebook combination supported by the terminal device indicated by the second information.

[0175] The parameter included in the third information is a capability parameter of the CSI measurement and the codebook combination supported by the terminal device indicated by the second information; and the first resource pair information included in the first indication information and the first information are used to determine a capability parameter of the CSI measurement supported by the terminal device under the CSI measurement and the codebook combination supported by the terminal device indicated by the second information. That is, the total capability of the CSI measurement supported by the terminal device under the CSI measurement and the codebook combination supported by the terminal device indicated by the second information is determined by the third information, and the capability of the joint CSI measurement is determined by the first indication information. That is, the network device simultaneously configures the CSI measurement and the codebook combination supported by the terminal device indicated by the second information, and the total CSI resource configuration cannot exceed the capability parameter indicated by the third information; and the CSI resource configuration corresponding to the joint CSI measurement cannot exceed the capability parameter indicated by the first indication information.

[0176] In the embodiments of the present application, the codebooks in the codebook combination can include one or more of the following: a Type I single-panel codebook (Type I Single-Panel codebook);

[0177] a Type I multi-panel codebook (Type I Multi-Panel codebook);

[0178] a Type II codebook (Type II codebook);

[0179] a Type II port selection codebook (Type II port selection codebook);

[0180] an enhanced Type II codebook with R=1 (Enhanced Type II codebook with R=1);

[0181] Enhanced Type II codebook with R=2;

[0182] Enhanced Type II codebook with R=1 with port selection;

[0183] Enhanced Type II codebook with R=2 with port selection. Wherein R=1 means that the subband size of PMI is equal to the subband size configured by the network device; R=2 means that the subband size of PMI is equal to half of the subband size configured by the network device.

[0184] For example, the codebook combination can be any of the following combinations:

[0185] Codebook combination 1: {Type 1 single panel codebook, Type 2 codebook, Null}, Null means that no codebook is configured;

[0186] Codebook combination 2: {Type 1 single panel codebook, Type 2 port selection codebook, Null};

[0187] Codebook combination 3: {Type 1 single panel codebook, Enhanced Type II codebook with R=1, Null};

[0188] Codebook combination 4: {Type 1 single panel codebook, Enhanced Type II codebook with R=2, Null};

[0189] Codebook combination 5: {Type 1 single panel codebook, Enhanced Type II codebook with R=1 with port selection, Null};

[0190] Codebook combination 6: {Type 1 single panel codebook, Enhanced Type II codebook with R=2 with port selection, Null};

[0191] Codebook combination 7: {Type 1 single panel codebook, Type 2 codebook, Type 2 port selection codebook}

[0192] Codebook combination 8: {Type 1 multi-panel codebook, Type 2 codebook, Null};

[0193] Codebook combination 9: {Type 1 multi-panel codebook, Type 2 port selection codebook, Null};

[0194] Codebook combination 10: {Type 1 multi-panel codebook, Enhanced Type II codebook with R=1, Null};

[0195] Codebook combination 11: {Type 1 multi-panel codebook, enhanced Type 2 and R = 2 codebook, Null};

[0196] Codebook combination 12: {Type 1 multi-panel codebook, enhanced Type 2 and R = 1 port selection codebook, Null};

[0197] Codebook combination 13: {Type 1 multi-panel codebook, enhanced Type 2 and R = 2 port selection codebook, Null};

[0198] Codebook combination 14: {Type 1 multi-panel codebook, Type 2 codebook, Type 2 port selection codebook}.

[0199] In an embodiment of the present application, the third information can include at least one fourth information and at least one second resource pair information, one fourth information being associated with one second resource pair information; or the third information includes at least one fourth information, one fourth information being associated with a resource pair number, for example, the resource pair number can be 1 or 2, etc.

[0200] The second resource pair information is used to indicate the number of resource pairs supported by the terminal device in one reference signal resource set, and / or the total number of resource pairs supported by the terminal device in one frequency unit;

[0201] The fourth information includes at least one of the following information:

[0202] The second port number information is used to indicate the maximum number of transmission ports in one resource, and / or the maximum number of transmission ports of one resource in one resource pair; the second resource number information is used to indicate the number of reference signal resources that the terminal device can support in one frequency unit; the second total port number information is used to indicate the total number of ports supported by the terminal device in one frequency unit, and / or the total number of ports in the resource pair supported by the terminal device in one frequency unit.

[0203] In combination with the foregoing description, when the codebook combination indicated by the second indication information contains the Type 1 single-panel codebook, and there is simultaneous CSI measurement based on the Type 1 SP codebook and other type codebooks in the same time unit, the third information associated with the second indication information can indicate the maximum number of resource pairs associated with the CSI measurement based on the Type 1 SP codebook; the second port number information indicated by the third information associated with the second indication information is used to indicate the maximum number of transmission ports in one resource; the second resource number information indicated by the third information associated with the second indication information is used to indicate the maximum number of resources; and the second total port number information indicated by the third information associated with the second indication information is used to indicate the total number of transmission ports.

[0204] The codebook combination indicated by the second indication information includes Type 1 MP or Type 2 or Type 2 with port selection or eType 2 with R = 1 or eType 2 with R = 2 or eType 2 with R = 1 and port selection or eType 2 with R = 2 and port selection, and the third information associated with the second indication information can indicate the maximum number of resource pairs associated with CSI measurement based on the codebook, and can indicate one or more of the maximum number of transmission ports in a resource, the maximum number of resources, and the total number of transmission ports.

[0205] In an embodiment of the present application, the second indication information can be capability information of different granularities. In one possible implementation, the at least one second information and the at least one third information included in the second indication information include capability information of each frequency band (per band per band combination) of the terminal device. That is, one second information and one third information in the second indication information can be used to indicate CSI processing capability information of the terminal device on one frequency band in one frequency band combination under one codebook combination supported by the terminal device.

[0206] In another possible implementation, the at least one second information and the at least one third information included in the second indication information can include capability information of each frequency band (per band and per band combination) of the terminal device. That is, one second information and one third information in the second indication information can be used to indicate CSI processing capability information of the terminal device on one frequency band combination under one codebook combination supported by the terminal device, or one second information and one third information in the second indication information can be used to indicate CSI processing capability information of the terminal device when working independently on one frequency band under one codebook combination supported by the terminal device.

[0207] The second indication information reported by the terminal device can indicate the corresponding CSI processing capability of the terminal device under the NCJT measurement assumption and the mixed scheduling of different codebook combinations, and the problem of low reporting of the capability caused by the terminal device when only reporting the CSI processing capability under the single-TRP measurement assumption and the NCJT measurement assumption can be avoided. Correspondingly, the network device can perform CSI measurement configuration according to the second indication information, and the network device configures the terminal device to simultaneously perform channel measurement resources of the CSI measurement under the single-TRP measurement assumption and the NCJT measurement assumption according to the CSI measurement capability indicated by the second indication information, so that the total channel measurement resources corresponding to the CSI measurement under different measurement assumptions do not exceed the capability reported by the terminal device, and the problem of over-capacity configuration is avoided.

[0208] In the embodiments of the present application, the terminal device can also send third indication information to the network device. The third indication information can be used to indicate the CSI processing capability of the terminal device under the single-TRP measurement assumption.

[0209] The third indication information can include at least one fifth information, and the fifth information can include one or more of the following information:

[0210] The third port number information, the third resource number information, and the third total port number information.

[0211] The third port number information is used to indicate the maximum number of transmission ports supported by the terminal device in one resource, and / or the maximum number of transmission ports supported by the terminal device in one resource pair in one resource. The third resource number information is used to indicate the number of reference signal resources that the terminal device can support in one frequency unit. The third total port number information is used to indicate the total number of ports supported by the terminal device in one frequency unit, and / or the total number of ports supported by the terminal device in one resource pair in one frequency unit.

[0212] For example, the third indication information reported by the terminal device includes three fifth information, which are {8, 8, 64}, {16, 4, 64} and {32, 2, 64}. Among them, {8, 8, 64} indicates that the terminal device simultaneously supports a maximum of 8 transmission ports in one resource, can simultaneously support 8 reference signal resources in one frequency unit, and simultaneously supports a total of 64 ports in one frequency unit.

[0213] {16, 4, 64} indicates that the terminal device simultaneously supports a maximum of 16 transmission ports in one resource, can simultaneously support 4 reference signal resources in one frequency unit, and simultaneously supports a total of 64 ports in one frequency unit.

[0214] {32,2,64} indicates that the maximum number of transmission ports supported by the terminal device in one resource is 32, the number of reference signal resources that can be simultaneously supported in one frequency unit is 2, and the total number of ports that can be simultaneously supported in one frequency unit is 64.

[0215] In the embodiments of the present application, the terminal device can also obtain CSI configuration information from the network device. The CSI configuration information can include CSI reporting configuration information and CSI resource configuration information.

[0216] The CSI reporting configuration information can include CSI codebook information, which is used to determine the codebook type when measuring CSI. The CSI resource configuration information is used to determine a set of NZP CSI-RS resources for channel measurement, and / or a set of CSI-IM resources for interference measurement, and / or a set of NZP CSI-RS resources for interference measurement.

[0217] The set of NZP CSI-RS resources for channel measurement includes a plurality of NZP CSI-RS resources for channel measurement, and / or a plurality of pairs of NZP CSI-RS resources for channel measurement. The number of resources corresponding to the NZP CSI-RS resources for channel measurement and / or the number of resource pairs corresponding to the pairs of NZP CSI-RS resources for channel measurement, or the total number of transmission ports, the maximum number of transmission ports, does not exceed the terminal device reporting capability.

[0218] The terminal device can measure the reference signal according to the CSI configuration information, obtain the CSI, and report the CSI to the network device. The specific process is not described here.

[0219] Each of the above embodiments can be implemented alone or in combination with each other. In the above, in different embodiments, the differences between the embodiments are mainly described, and other contents in different embodiments can be mutually referred to. It should be understood that the step numbers of each flowchart described in the embodiments of the present application are only one example of the execution process, and do not constitute a limitation on the execution order of the steps. The steps in the embodiments of the present application have no strict execution order between each other. In addition, not all the steps shown in each flowchart are necessary to be executed, and some steps can be added or deleted based on the actual needs on the basis of each flowchart.

[0220] To implement the functions in the methods provided in the embodiments of the present application, the access network device, the terminal device, or the communication apparatus can include hardware structures and / or software modules to implement the functions in the form of hardware structures, software modules, or hardware structures and software modules. Whether a certain function is implemented in the form of hardware structure, software module, or hardware structure and software module depends on a specific application and design constraint conditions of the technical solutions.

[0221] The division of the modules in the embodiments of the present application is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each function module in each embodiment of the present application can be integrated in one processor, or can be physically separated, or two or more modules can be integrated in one module. The integrated module can be implemented in the form of hardware or in the form of a software function module.

[0222] As shown in the above concept, the embodiments of the present application also provide an apparatus 500. The communication apparatus 500 can be a terminal device in the above method embodiments, configured to implement the method for the terminal device in the above method embodiments. The communication apparatus can also be a TRP in the above method embodiments, configured to implement the method corresponding to the network device in the above method embodiments. For specific functions, refer to the description in the above method embodiments. Figure 5 Figure 1 Figure 1

[0223] Specifically, the apparatus 500 can include a processing unit 501 and a communication unit 502. In the embodiments of the present application, the communication unit can also be referred to as a transceiver unit, and can include a sending unit and / or a receiving unit, which are respectively configured to perform the steps of sending and receiving of the network device or the terminal device in the above method embodiments. In the following, the communication apparatus provided in the embodiments of the present application will be described in detail. Figures 5 to 6

[0224] In some possible implementation manners, the processing unit is configured to generate first indication information, the first indication information including at least one first information and at least one first resource pair information, one first information being associated with one first resource pair information; or the first indication information including at least one first information, one first information being associated with a number of resource pairs;

[0225] The first resource pair information is used to indicate a number of resource pairs supported by the terminal device in one reference signal resource set, and / or a number of resource pairs supported by the terminal device in one frequency unit;

[0226] The first information at least includes one or more of first port number information, first resource number information, or first total port number information; ​​​​

[0227] a communication unit, configured to send the first indication information.

[0228] In a possible implementation, the frequency unit is one or more carriers; or the frequency unit is one or more bands (Band); or the frequency unit is one or more band combinations (Band combination, BC); or the frequency unit is one or more bandwidth parts (Bandwidth part, BWP).

[0229] In a possible implementation, the first port number information is used to indicate a maximum number of transmission ports within one resource, and / or a maximum number of transmission ports of one resource within one resource pair.

[0230] In a possible implementation, the first resource number information is used to indicate a number of reference signal resources that the terminal device can support within one frequency unit.

[0231] In a possible implementation, the first total port number information is used to indicate a total number of ports supported by the terminal device within one frequency unit, and / or a total number of ports within a resource pair supported by the terminal device within one frequency unit.

[0232] In a possible implementation, the first indication information includes capability information of each band within a band combination;

[0233] Alternatively, the first indication information includes capability information of a band combination and capability information of each band.

[0234] In a possible implementation, the communication unit is further configured to send second indication information, the second indication information including at least one of at least one second information and at least one third information;

[0235] The second information is used to indicate that, within the same time unit, the terminal device supports a channel state information (CSI) measurement and a codebook combination, wherein the CSI measurement at least includes joint CSI measurement on a resource pair, and the codebook combination includes one or more of the following: a type 1 single-panel codebook, a type 1 multi-panel codebook, a type 2 codebook, a type 2 port selection codebook, an enhanced type 2 and R = 1 codebook, an enhanced type 2 and R = 2 codebook, an enhanced type 2 and R = 1 port selection codebook, and an enhanced type 2 and R = 2 port selection codebook.

[0236] The third information comprises at least one fourth information and at least one second resource pair information, one fourth information being associated with one second resource pair information; or the third information comprises at least one fourth information, one fourth information being associated with one resource pair number; the fourth information at least comprises one or more of the second port number information, the second resource number information and the second total port number information; the parameter comprised in the third information is the capability parameter of the CSI measurement and codebook combination supported by the terminal device indicated by the second information; the first resource pair number information contained in the first indication information and the first information are used to determine the capability parameter of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

[0237] In a possible implementation manner, the second port number information is used to indicate the maximum number of transmission ports in one resource, and / or the maximum number of transmission ports of one resource in one resource pair; the second resource number information is used to indicate the number of reference signal resources that can be supported by the terminal device in one frequency unit; and the second total port number information is used to indicate the total number of ports supported by the terminal device in one frequency unit, and / or the total number of ports in the resource pair supported by the terminal device in one frequency unit.

[0238] In a possible implementation manner, the second indication information comprises capability information of each frequency band in the frequency band combination.

[0239] Alternatively, the second indication information comprises capability information of the frequency band combination and capability information of each frequency band.

[0240] In some possible implementation manners, the behaviors and functions of the network device in the method embodiments described above can be implemented by the communication apparatus 500, for example, the method performed by the network device in the embodiments shown in Figure 3 For example, the communication apparatus 500 can be a network device, or a component (for example, a chip or circuit) applied to the network device, or a chip or chip set or part of the chip in the network device for performing the related method functions. The communication unit 502 can be configured to perform the receiving or transmitting operations performed by the network device in the embodiments shown in Figure 3 The processing unit 501 can be configured to perform the operations performed by the network device in the embodiments shown in Figure 3 except the transceiving operations.

[0241] In a possible implementation, the communication unit is configured to receive first indication information from the terminal device, the first indication information comprising: at least one first information and at least one first resource pair information, one first information being associated with one first resource pair information; or the first indication information comprising: at least one first information, one first information being associated with a number of resource pairs; wherein the first resource pair information is used to indicate: a number of resource pairs supported by the terminal device in a reference signal resource set, and / or a number of resource pairs supported by the terminal device in one frequency unit;

[0242] The first information at least comprises one or more of first port number information, first resource number information, or first total port number information;

[0243] The processing unit is configured to configure channel measurement resources for the terminal device according to the first indication information.

[0244] In a possible implementation, the frequency unit is one or more carriers; or the frequency unit is one or more bands (Band); or the frequency unit is one or more band combinations (Band combination, BC); or the frequency unit is one or more bandwidth parts (Bandwidth part, BWP).

[0245] In a possible implementation, the first port number information is used to indicate: a maximum number of transmission ports in one resource, and / or a maximum number of transmission ports of one resource in one resource pair.

[0246] In a possible implementation, the first resource number information is used to indicate: a number of reference signal resources that can be supported by the terminal device in one frequency unit.

[0247] In a possible implementation, the first total port number information is used to indicate: a total number of ports supported by the terminal device in one frequency unit, and / or a total number of ports in a resource pair supported by the terminal device in one frequency unit.

[0248] In a possible implementation, the first indication information comprises capability information of each band in a band combination;

[0249] Alternatively, the first indication information comprises capability information of a band combination and capability information of each band.

[0250] In a possible implementation, the communication unit is further configured to: receive second indication information from the terminal device, the second indication information containing at least one of at least one second information and at least one third information; the second information is used to indicate that, in a same time unit, a channel state information (CSI) measurement and a codebook combination supported by the terminal device, wherein the CSI measurement contains at least joint CSI measurement on a resource pair, and the codebook combination includes one or more of the following: a type 1 single-panel codebook, a type 1 multi-panel codebook, a type 2 codebook, a type 2 port selection codebook, an enhanced type 2 and R = 1 codebook, an enhanced type 2 and R = 2 codebook, an enhanced type 2 and R = 1 port selection codebook, and an enhanced type 2 and R = 2 port selection codebook.

[0251] The third information includes at least one fourth information and at least one second resource pair information, one fourth information being associated with one second resource pair information; or the third information includes at least one fourth information, one fourth information being associated with a resource pair number; the fourth information includes one or more of second port number information, second resource number information, and second total port number information.

[0252] The parameter included in the third information is a capability parameter of the CSI measurement and the codebook combination supported by the terminal device indicated by the second information; and the first resource pair number information and the first information contained in the first indication information are used to determine a capability parameter of the CSI measurement supported by the terminal device under the CSI measurement and the codebook combination supported by the terminal device indicated by the second information.

[0253] In a possible implementation, the second port number information is used to indicate a maximum number of transmission ports in one resource, and / or a maximum number of transmission ports of one resource in one resource pair; the second resource number information is used to indicate a number of reference signal resources that can be supported by the terminal device in one frequency unit; and the second total port number information is used to indicate a total number of ports supported by the terminal device in one frequency unit, and / or a total number of ports in a resource pair supported by the terminal device in one frequency unit.

[0254] In a possible implementation, the second indication information contains capability information of each frequency band in a frequency band combination.

[0255] Alternatively, the second indication information contains capability information of a frequency band combination and capability information of each frequency band.

[0256] It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and vice versa, as Figure 3The device structure for implementing the terminal device and the network device in the method embodiments can also refer to the device 500, and therefore, the content not described in detail can refer to the above method embodiments, and for brevity, will not be described here again.

[0257] The communication unit can also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit can also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device in the communication unit 502 for implementing the receiving function can be regarded as a receiving unit, and the device in the communication unit 502 for implementing the sending function can be regarded as a sending unit, that is, the communication unit 502 includes a receiving unit and a sending unit. The communication unit can also be referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit can also be referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit can also be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0258] The above is only an example, and the processing unit 501 and the communication unit 502 can also perform other functions, and more detailed descriptions can refer to the above method embodiments. Figure 3 The above is only an example, and the processing unit 501 and the communication unit 502 can also perform other functions, and more detailed descriptions can refer to the above method embodiments.

[0259] As shown in the above method embodiments, the processing unit 501 and the communication unit 502 can also perform other functions, and more detailed descriptions can refer to the above method embodiments. Figure 6 The device 600 provided by the embodiments of the present application is shown, Figure 6 The device can be Figure 5 An implementation manner of a hardware circuit of the device is shown. The communication device can be applied to the above flowcharts and perform the functions of the terminal device or the network device in the above method embodiments. For brevity, Figure 6 Only the main components of the communication device are shown.

[0260] As shown in the above method embodiments, the processing unit 501 and the communication unit 502 can also perform other functions, and more detailed descriptions can refer to the above method embodiments. Figure 6 The communication device 600 includes a processor 610 and an interface circuit 620. The processor 610 and the interface circuit 620 are coupled to each other. It can be understood that the interface circuit 620 can be a transceiver or an input-output interface. Optionally, the communication device 600 can also include a memory 630 for storing instructions executed by the processor 610 or storing input data required by the processor 610 to run instructions or storing data generated after the processor 610 runs instructions.

[0261] When the communication device 600 is used to implement the method shown in the above method embodiments, the processor 610 is used to implement the functions of the above processing unit 501, and the interface circuit 620 is used to implement the functions of the above communication unit 502. Figure 3

[0262] ​When the communication apparatus is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the method embodiments. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the access network device to the terminal device; or the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the terminal device to the access network device.

[0263] When the communication apparatus is a chip applied to a network device, the network device chip implements the functions of the network device in the method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the network device to the terminal device.

[0264] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices. The general-purpose processor can be a microprocessor, or any conventional processor.

[0265] The memory in the embodiments of the present application can be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), a register, a hard disk, a mobile hard disk or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. The processor and the storage medium can also exist as discrete components in the network device or the terminal device.

[0266] Those skilled in the art will appreciate that embodiments of the present application can be readily used as a method, a system or a computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage etc.) embodying computer readable program code.

[0267] The present application is described in relation to flow diagrams and / or block diagrams of methods, apparatus (systems) and computer program products according to the present application. It is understood that each block of the flow diagrams and / or block diagrams, and combinations of blocks in the flow diagrams and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flow diagrams and / or block diagrams block or blocks. Figure 1 one or more functions specified in one or more of the flow diagram or block diagram block or blocks. Figure 1 one or more functions specified in one or more of the flow diagram or block diagram block or blocks.

[0268] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the flow diagram or block diagram block or blocks. Figure 1 one or more functions specified in one or more of the flow diagram or block diagram block or blocks. Figure 1 Figure 1 one or more functions specified in one or more of the flow diagram or block diagram block or blocks.

[0269] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A method for information transmission, characterized in that, Applied to terminal devices, including: Generate first indication information; the first indication information is used to indicate the channel state information (CSI) processing capability of the terminal device under the noncoherent joint transmission (NCJT) measurement assumption, the first indication information includes: at least one first piece of information and at least one first resource pair information, one first piece of information is associated with one first resource pair information; or the first indication information includes: at least one first piece of information, one first piece of information is associated with a number of resource pairs; Wherein, the first resource pair information is used to indicate: the number of resource pairs supported by the terminal device in a reference signal resource set, and / or the number of resource pairs supported by the terminal device in a frequency unit; The first information includes the number of first ports and the total number of first ports; Send the first instruction information.

2. The method according to claim 1, characterized in that, The frequency unit is one or more carriers; or the frequency unit is one or more frequency bands; or the frequency unit is a combination of one or more frequency bands; or the frequency unit is one or more bandwidth portions.

3. The method according to claim 1 or 2, characterized in that, The first port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports for a resource within a resource pair.

4. The method according to claim 1 or 2, characterized in that, The first resource count information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit.

5. The method according to claim 1 or 2, characterized in that, The first port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

6. The method according to claim 1 or 2, characterized in that, The method further includes: Send a second instruction message, the second instruction message containing at least one of at least a second message and at least one third message; The second information is used to indicate: within the same time unit, the terminal device supports Channel State Information (CSI) measurements and codebook combinations, wherein the CSI measurements include at least joint CSI measurements on resource pairs, and the codebook combinations include one or more of the following: Type 1 single-panel codebook, Type 1 multi-panel codebook, Type 2 codebook, Type 2 port selection codebook, enhanced Type 2 codebook with R=1, enhanced Type 2 codebook with R=2, enhanced Type 2 port selection codebook with R=1, and enhanced Type 2 port selection codebook with R=2; wherein R=1 indicates that the subband size indicated by the precoding matrix is ​​equal to the subband size configured by the network device; R=2 indicates that the subband size indicated by the precoding matrix is ​​equal to half of the subband size configured by the network device; The third information includes: at least one fourth piece of information and at least one second resource pair information, wherein the fourth piece of information is associated with the second resource pair information; or the third information includes: at least one fourth piece of information, wherein the fourth piece of information is associated with a resource pair count; wherein the fourth information includes at least one or more of the following: second port count information, second resource count information, and total number of second ports information; The parameters included in the third information are: the CSI measurement and codebook combination capability parameters supported by the terminal device indicated by the second information; The first resource pair count information and the first information contained in the first indication information are used to determine: the capability parameters of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

7. The method according to claim 6, characterized in that, The second port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports within a resource pair; The second resource quantity information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit; The second port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

8. An information transmission method, characterized in that, Applied to network devices, including: Receive first indication information from a terminal device; the first indication information is used to indicate the channel state information (CSI) processing capability of the terminal device under the noncoherent joint transmission (NCJT) measurement assumption, the first indication information includes: at least one first piece of information and at least one first resource pair information, one first piece of information being associated with one first resource pair information; or the first indication information includes: at least one first piece of information, one first piece of information being associated with a number of resource pairs; Wherein, the first resource pair information is used to indicate: the number of resource pairs supported by the terminal device in a reference signal resource set, and / or the number of resource pairs supported by the terminal device in a frequency unit; The first information includes the number of first ports, the number of first resources, and the total number of first ports; Configure channel measurement resources for the terminal device according to the first instruction information.

9. The method according to claim 8, characterized in that, The frequency unit is one or more carriers; or the frequency unit is one or more frequency bands; or the frequency unit is a combination of one or more frequency bands; or the frequency unit is one or more bandwidth portions.

10. The method according to claim 8 or 9, characterized in that, The first port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports for a resource within a resource pair.

11. The method according to claim 8 or 9, characterized in that, The first resource count information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit.

12. The method according to claim 8 or 9, characterized in that, The first port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

13. The method according to claim 8 or 9, characterized in that, The method further includes: Receive second indication information from the terminal device, the second indication information including at least one of at least one second piece of information and at least one third piece of information; The second information is used to indicate: within the same time unit, the terminal device supports Channel State Information (CSI) measurements and codebook combinations, wherein the CSI measurements include at least joint CSI measurements on resource pairs, and the codebook combinations include one or more of the following: Type 1 single-panel codebook, Type 1 multi-panel codebook, Type 2 codebook, Type 2 port selection codebook, enhanced Type 2 codebook with R=1, enhanced Type 2 codebook with R=2, enhanced Type 2 port selection codebook with R=1, and enhanced Type 2 port selection codebook with R=2; wherein R=1 indicates that the subband size indicated by the precoding matrix is ​​equal to the subband size configured by the network device; R=2 indicates that the subband size indicated by the precoding matrix is ​​equal to half of the subband size configured by the network device; The third information includes: at least one fourth piece of information and at least one second resource pair information, wherein the fourth piece of information is associated with the second resource pair information; or the third information includes: at least one fourth piece of information, wherein the fourth piece of information is associated with a resource pair count; wherein the fourth information includes at least one or more of the following: second port count information, second resource count information, and total number of second ports information; The parameters included in the third information are: the CSI measurement and codebook combination capability parameters supported by the terminal device indicated by the second information; The first resource pair count information and the first information contained in the first indication information are used to determine: the capability parameters of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

14. The method according to claim 13, characterized in that, The second port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports within a resource pair; The second resource quantity information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit; The second port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

15. A communication device, characterized in that, include: Processing unit, used to generate first indication information; The first indication information is used to indicate the channel state information (CSI) processing capability of the terminal device under the noncoherent joint transmission (NCJT) measurement assumption. The first indication information includes: at least one first piece of information and at least one first resource pair information, with one first piece of information associated with one first resource pair information; or the first indication information includes: at least one first piece of information, with one first piece of information associated with a number of resource pairs. Wherein, the first resource pair information is used to indicate: the number of resource pairs supported by the terminal device in a reference signal resource set, and / or the number of resource pairs supported by the terminal device in a frequency unit; The first information includes the number of first ports and the total number of first ports; A communication unit is used to send the first indication information.

16. The apparatus according to claim 15, characterized in that, The frequency unit is one or more carriers; or the frequency unit is one or more frequency bands; or the frequency unit is a combination of one or more frequency bands; or the frequency unit is one or more bandwidth portions.

17. The apparatus according to claim 15 or 16, characterized in that, The first port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports for a resource within a resource pair.

18. The apparatus according to claim 15 or 16, characterized in that, The first resource count information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit.

19. The apparatus according to claim 15 or 16, characterized in that, The first port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

20. The apparatus according to claim 15 or 16, characterized in that, The communication unit is also used for: Send a second instruction message, the second instruction message containing at least one of at least a second message and at least one third message; The second information is used to indicate: within the same time unit, the terminal device supports Channel State Information (CSI) measurements and codebook combinations, wherein the CSI measurements include at least joint CSI measurements on resource pairs, and the codebook combinations include one or more of the following: Type 1 single-panel codebook, Type 1 multi-panel codebook, Type 2 codebook, Type 2 port selection codebook, enhanced Type 2 codebook with R=1, enhanced Type 2 codebook with R=2, enhanced Type 2 port selection codebook with R=1, and enhanced Type 2 port selection codebook with R=2; wherein R=1 indicates that the subband size indicated by the precoding matrix is ​​equal to the subband size configured by the network device; R=2 indicates that the subband size indicated by the precoding matrix is ​​equal to half of the subband size configured by the network device; The third information includes: at least one fourth piece of information and at least one second resource pair information, wherein the fourth piece of information is associated with the second resource pair information; or the third information includes: at least one fourth piece of information, wherein the fourth piece of information is associated with a resource pair count; wherein the fourth information includes at least one or more of the following: second port count information, second resource count information, and total number of second ports information; The parameters included in the third information are: the CSI measurement and codebook combination capability parameters supported by the terminal device indicated by the second information; The first resource pair count information and the first information contained in the first indication information are used to determine: the capability parameters of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

21. The apparatus according to claim 20, characterized in that, The second port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports within a resource pair; The second resource quantity information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit; The second port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

22. A communication device, characterized in that, include: The communication unit is used to receive first instruction information from the terminal device; The first indication information is used to indicate the channel state information (CSI) processing capability of the terminal device under the noncoherent joint transmission (NCJT) measurement assumption. The first indication information includes: at least one first piece of information and at least one first resource pair information, with one first piece of information associated with one first resource pair information; or the first indication information includes: at least one first piece of information, with one first piece of information associated with a number of resource pairs. Wherein, the first resource pair information is used to indicate: the number of resource pairs supported by the terminal device in a reference signal resource set, and / or the number of resource pairs supported by the terminal device in a frequency unit; The first information includes the number of first ports and the total number of first ports; The processing unit is configured to configure channel measurement resources for the terminal device according to the first indication information.

23. The apparatus according to claim 22, characterized in that, The frequency unit is one or more carriers; or the frequency unit is one or more frequency bands; or the frequency unit is a combination of one or more frequency bands; or the frequency unit is one or more bandwidth portions.

24. The apparatus according to claim 22 or 23, characterized in that, The first port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports for a resource within a resource pair.

25. The apparatus according to claim 22 or 23, characterized in that, The first resource count information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit.

26. The apparatus according to claim 22 or 23, characterized in that, The first port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

27. The apparatus according to claim 22 or 23, characterized in that, The communication unit is also used for: Receive second indication information from the terminal device, the second indication information including at least one of at least one second piece of information and at least one third piece of information; The second information is used to indicate: within the same time unit, the terminal device supports Channel State Information (CSI) measurements and codebook combinations, wherein the CSI measurements include at least joint CSI measurements on resource pairs, and the codebook combinations include one or more of the following: Type 1 single-panel codebook, Type 1 multi-panel codebook, Type 2 codebook, Type 2 port selection codebook, enhanced Type 2 codebook with R=1, enhanced Type 2 codebook with R=2, enhanced Type 2 port selection codebook with R=1, and enhanced Type 2 port selection codebook with R=2; wherein R=1 indicates that the subband size indicated by the precoding matrix is ​​equal to the subband size configured by the network device; R=2 indicates that the subband size indicated by the precoding matrix is ​​equal to half of the subband size configured by the network device; The third information includes: at least one fourth piece of information and at least one second resource pair information, wherein the fourth piece of information is associated with the second resource pair information; or the third information includes: at least one fourth piece of information, wherein the fourth piece of information is associated with a resource pair count; wherein the fourth information includes at least one or more of the following: second port count information, second resource count information, and total number of second ports information; The parameters included in the third information are: the CSI measurement and codebook combination capability parameters supported by the terminal device indicated by the second information; The first resource pair count information and the first information contained in the first indication information are used to determine: the capability parameters of the CSI measurement supported by the terminal device under the CSI measurement and codebook combination supported by the terminal device indicated by the second information.

28. The apparatus according to claim 27, characterized in that, The second port count information is used to indicate: the maximum number of transmit ports within a resource, and / or the maximum number of transmit ports within a resource pair; The second resource quantity information is used to indicate the number of reference signal resources that the terminal device can support within a frequency unit; The second port total information is used to indicate: the total number of ports supported by the terminal device within a frequency unit, and / or the total number of ports within a resource pair supported by the terminal device within a frequency unit.

29. A communication device, characterized in that, Including processor and memory; The processor is configured to execute computer programs or instructions stored in the memory, causing the communication device to implement the method described in any one of claims 1 to 7.

30. A communication device, characterized in that, Including processor and memory; The processor is configured to execute a computer program or instructions stored in the memory, causing the communication device to implement the method described in any one of claims 8 to 14.

31. A computer-readable storage medium, characterized in that, The computer contains a computer program or instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 14.

32. A chip, characterized in that, The chip includes a processor coupled to a memory for executing a computer program or instructions stored in the memory, such that the chip implements the method of any one of claims 1 to 14.

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