A method and device for reporting CSI reports

Abstract

A method and apparatus for reporting a CSI report, the method comprising: a terminal device receives first configuration information and second configuration information, the first configuration information is associated with configuration information of a reference signal resource, the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources. The terminal device determines N channel measurement resource pairs, obtains a CSI report, and sends the CSI report to a network device. X satisfies X=N+K, the second configuration information indicates M reference signal resources out of the K reference signal resources, and M is a positive integer less than or equal to K. The above method can be used to ensure that even if the value of M is different, the interference measurement resource sets associated with the same reference signal resource set are the same, thereby effectively reducing the complexity of configuring resources and the storage burden of the terminal device.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communications, and in particular to a method and apparatus for reporting a CSI report. Background Art

[0002] Currently, non-coherent joint transmission (NCJT) can enable up to two transmission reception points (TRPs) to provide data transmission services to the same terminal device at the same time.

[0003] To support the CSI measurement of the NCJT channel state information (CSI) measurement hypothesis, the network device can configure a reference signal resource set consisting of K reference signal resources for the terminal device. The reference signal resources can be non-zero power channel state information reference signal (NZP CSI-RS) resources. The network device is also configured with an interference measurement resource set, which includes a channel state information interference measurement (CSI-IM) resource.

[0004] The network device can further configure N channel measurement resource pairs (CMR pairs) in the K reference signal resources, where N is a positive integer, and each channel measurement resource pair includes 2 reference signal resources, wherein the reference signal resources are associated with TRP, and different reference signal resources are associated with different TRPs. The network device can also configure interference measurement resources associated with the N channel measurement resource pairs, and the terminal device can perform CSI calculations on the two reference signal resources included in each channel measurement resource pair and its associated 1 interference measurement resource according to the NCJT CSI measurement hypothesis. Among them, N channel measurement resource pairs correspond to N NCJT CSI measurement hypotheses.

[0005] The network device may further configure M (M≤K) reference signal resources and interference measurement resources associated with the M reference signal resources, respectively, among the K reference signal resources. The terminal device may perform CSI calculation based on the single TRP CSI measurement assumption on each reference signal resource and its associated interference measurement resource. The M reference signal resources correspond to the M single TRP measurement assumptions.

[0006] In the above configuration, the network device can configure 1 reference signal resource set and 1 interference measurement resource set for the terminal device, the number of reference signal resources included in the reference signal resource set is the same as the number of interference measurement resources included in the interference measurement resource set, and the reference signal resources in the reference signal resource set correspond to the interference measurement resources in the interference measurement resource set according to their order in the set.

[0007] Since the value of M can be different when the network device configures M reference signal resources among K reference signal resources, different values ​​of M result in different numbers of interference measurement resources included in the interference measurement resource set, that is, each value of M needs to be separately associated with one interference measurement resource set, which will result in the need to configure interference measurement resource sets separately for different values ​​of M, resulting in a sharp increase in configuration parameters and low configuration efficiency. Summary of the Invention

[0008] The embodiments of the present application provide a method and apparatus for reporting a CSI report, so as to solve the problem of a sharp increase in configuration parameters caused by configuring interference measurement resource sets corresponding to different values ​​of M.

[0009] In the first aspect, an embodiment of the present application provides a method for reporting a CSI report. The execution subject of the method may be a terminal device or an apparatus for realizing the functions of a terminal device. The following description will be made by taking the execution subject as an example of a terminal device. The method includes: the terminal device receives first configuration information and second configuration information, determines N channel measurement resource pairs, obtains a CSI report, and sends a CSI report to a network device. The first configuration information is associated with the configuration information of the reference signal resource, and the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources; N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates K reference signal resources. The M reference signal resources in the resources, where M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs; and the CSI report has an association relationship with the M reference signal resources and their associated M interference measurement resources, the reference signal resources included in the N channel measurement resource pairs, and their associated N interference measurement resources.

[0010] The above method solves the problem of how to configure the number of interference measurement resources configured in the interference measurement resource set associated with the reference signal resource set under the NCJT CSI measurement assumption, and how to associate the interference measurement resources in the interference measurement resource set with the reference signal resources used for the single TRP CSI measurement assumption and the channel measurement resource pairs used for the NCJT CSI measurement assumption. The interference measurement resource set includes X interference measurement resources, where X = N + K. Therefore, even if the value of M is different, the interference measurement resource sets associated with the same reference signal resource set are the same, which can effectively reduce the complexity of resource configuration and the storage burden of the terminal device.

[0011] In one possible design, the first configuration information is CSI report configuration information, and the CSI report configuration information includes the second configuration information.

[0012] In one possible design, the second configuration information includes K bits, and the K bits correspond to the K reference signal resources in sequence.

[0013] The above design can be used to indicate whether each reference signal resource is M reference signal resources among K reference signal resources, and further determine the value of M.

[0014] In one possible design, the second configuration information indicates whether the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single TRP CSI measurement assumption.

[0015] The above design can be used to indicate whether the reference signal resources corresponding to N channel measurement resource pairs are used for CSI measurement of a single TRP CSI measurement hypothesis, and thus the value of M can be determined.

[0016] In one possible design, the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs, which means that: the first K interference measurement resources in the interference measurement resource set are associated with the K reference signal resources in the order of the K reference signal resources in the reference signal resource set, and the last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in the order of the N interference resources in the interference measurement resource set; or, the first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in the order of the N interference resources in the interference measurement resource set, and the N channel measurement resource pairs in the order of the N channel measurement resource pairs in the reference signal resource set, and the last K interference measurement resources in the interference measurement resource set are associated with the K reference signal resources in the order of the K interference resources in the interference measurement resource set.

[0017] Adopting the above-described first association relationship ensures that even if the value of M indicated by the second configuration information is different, the reference signal resource or channel measurement resource pair associated with the same interference measurement resource will not be changed, thereby facilitating interference measurement accuracy. In particular, when the interference measurement resource is a periodic or semi-persistent resource, the terminal device often performs time-domain filtering. When the reference signal resource or channel measurement resource pair associated with the same interference measurement resource remains unchanged, this is beneficial to filtering performance and improves interference estimation accuracy.

[0018] In one possible design, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and N channel measurement resource pairs, which means that: the first M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in the order of the M interference resources in the interference measurement resource set, and the last N interference measurement resources in the interference measurement resource set are associated with the N reference signal resources in the order of the N interference resources in the interference measurement resource set. The channel measurement resource pairs are associated in the order of the N channel measurement resource pairs in the reference signal resource set; or, the first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in the order of the N interference resources in the interference measurement resource set, and the last M interference measurement resources in the interference measurement resource set are associated with the M channel measurement resources in the order of the M interference resources in the interference measurement resource set.

[0019] By adopting the above-mentioned second association relationship, when the second configuration information indicates that the reference signal resources included in the N channel measurement resource pairs are not used for CSI measurement of the single-TRP CSI measurement hypothesis, the interference measurement resources associated with the M reference signal resources for the CSI measurement of the single-TRP CSI measurement hypothesis are continuous. Since CRI needs to be associated with the interference measurement resources, the number of bits of CRI feedback can be reduced. At the same time, the same interference measurement resource has an association relationship with the reference signal resource for CSI measurement of the single-TRP measurement hypothesis, or has an association relationship with the reference signal resource for CSI measurement of the NCJT CSI measurement hypothesis.

[0020] In one possible design, the CSI report includes reference signal resource indication information and CSI measurement information, wherein the bit length of the reference signal resource indication information is determined by K and N; or, the bit length of the reference signal resource indication information is determined by M and N; and the CSI measurement information includes one or more of PMI information, CQI information, RI information, and LI information.

[0021] In one possible design, the reference signal resource indication information is first reference signal resource indication information; the CSI measurement information is first CSI measurement information; the first reference signal resource indication information is associated with a first channel measurement resource pair, and the first channel measurement resource pair is one of the N channel measurement resource pairs; the first reference signal resource indication information is associated with a first interference measurement resource, and the first interference measurement resource is an interference measurement resource associated with the first channel measurement resource pair; the first CSI measurement information is obtained by measuring on the P reference signal resources included in the first channel measurement resource pair and the first interference measurement resource.

[0022] With the above design, the CSI includes the CSI corresponding to one NCJT CSI measurement hypothesis.

[0023] In one possible design, the reference signal resource indication information is second reference signal resource indication information; the CSI measurement information is second CSI measurement information; the second reference signal resource indication information is associated with a first reference signal resource, and the first reference signal resource is one of the M reference signal resources; the second reference signal resource indication information is associated with a second interference measurement resource, and the second interference measurement resource is an interference measurement resource associated with the first reference signal resource; the second CSI measurement information is obtained by measuring on the first reference signal resource and the second interference measurement resource.

[0024] With the above design, the CSI includes the CSI corresponding to one single TRP CSI measurement assumption.

[0025] In one possible design, the CSI report includes third reference signal resource indication information and third CSI measurement information; the third reference signal resource indication information is associated with a second channel measurement resource pair, and the third channel measurement resource pair is one of the N channel measurement resource pairs; the third reference signal resource indication information is associated with a third interference measurement resource, and the third interference measurement resource is an interference measurement resource associated with the second channel measurement resource pair; the third CSI measurement information is obtained by measuring on the P reference signal resources included in the second channel measurement resource pair and the third interference measurement resource; the CSI report also includes fourth reference signal resource indication information and fourth CSI measurement information; the fourth reference signal resource indication information is associated with the second reference signal resource, and the second reference signal resource is one of the M reference signal resources; the fourth reference signal resource indication information is associated with a fourth interference measurement resource, and the fourth interference measurement resource is an interference resource associated with the second reference signal resource; the fourth CSI measurement information is obtained by measuring on the second reference signal resource and the fourth interference measurement resource.

[0026] With the above design, the CSI includes the CSI corresponding to one single TRP CSI measurement hypothesis and the CSI corresponding to one NCJT CSI measurement hypothesis.

[0027] In one possible design, the reference signal resource is an NZP CSI-RS resource, and the interference measurement resource is a CSI-IM resource.

[0028] In one possible design, the N channel measurement resource pairs correspond to non-coherent joint transmission CSI measurement assumptions, and the M channel measurement resources correspond to single TRP CSI measurement assumptions.

[0029] In a second aspect, an embodiment of the present application provides a method for reporting a CSI report. The execution subject of the method may be a network or a device for realizing the functions of the network. The following description will be made by taking the execution subject as a network device as an example. The method includes: the network device sends first configuration information and second configuration information to a terminal device, determines N channel measurement resource pairs, sends reference signals on the K reference signal resources respectively, and receives a CSI report from the terminal device. The first configuration information is associated with the configuration information of the reference signal resource, and the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources; N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates K reference signal resources. The M reference signal resources in the interference measurement resource set are M, where M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs; the CSI report has an association relationship with the M reference signal resources and their associated M interference measurement resources, the reference signal resources included in the N channel measurement resource pairs, and their associated N interference measurement resources.

[0030] In one possible design, the first configuration information is CSI report configuration information, and the CSI report configuration information includes the second configuration information.

[0031] In one possible design, the second configuration information includes K bits, and the K bits correspond to the K reference signal resources in sequence.

[0032] In one possible design, the second configuration information indicates whether the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single TRP CSI measurement assumption.

[0033] In one possible design, the X interference measurement resources included in the interference measurement resource set and the K reference signal resources and the N channel measurement resource pairs having a first association relationship means that:

[0034] The first K interference measurement resources in the interference measurement resource set are associated with the K reference signal resources in an order in which the K interference resources are in the interference measurement resource set, and the last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order in which the N interference resources are in the interference measurement resource set; or

[0035] The first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order of the N interference resources in the interference measurement resource set, and the last K interference measurement resources in the interference measurement resource set are associated with the K reference signal resources in an order of the K interference resources in the interference measurement resource set and the K reference signal resources in an order of the K reference signal resource pairs in the reference signal resource set.

[0036] In one possible design, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and N channel measurement resource pairs, which means:

[0037] The first M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in the order of the M reference signal resources in the reference signal resource set, and the last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in the order of the N interference resources in the interference measurement resource set; or, the first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in the order of the N interference resources in the interference measurement resource set, and the last M interference measurement resources in the interference measurement resource set are associated with the M channel measurement resources in the order of the M interference resources in the interference measurement resource set and the M channel measurement resources in the order of the M channel measurement resources in the reference signal resource set.

[0038] In one possible design, the CSI report includes reference signal resource indication information and CSI measurement information, wherein the bit length of the reference signal resource indication information is determined by K and N; or, the bit length of the reference signal resource indication information is determined by M and N; and the CSI measurement information includes one or more of PMI information, CQI information, RI information, and LI information.

[0039] In one possible design, the reference signal resource indication information is first reference signal resource indication information; the CSI measurement information is first CSI measurement information; the first reference signal resource indication information is associated with a first channel measurement resource pair, and the first channel measurement resource pair is one of the N channel measurement resource pairs; the first reference signal resource indication information is associated with a first interference measurement resource, and the first interference measurement resource is an interference measurement resource associated with the first channel measurement resource pair; the first CSI measurement information is obtained by measuring on the P reference signal resources included in the first channel measurement resource pair and the first interference measurement resource.

[0040] In one possible design, the reference signal resource indication information is second reference signal resource indication information; the CSI measurement information is second CSI measurement information; the second reference signal resource indication information is associated with a first reference signal resource, and the first reference signal resource is one of the M reference signal resources; the second reference signal resource indication information is associated with a second interference measurement resource, and the second interference measurement resource is an interference measurement resource associated with the first reference signal resource; and the second CSI measurement information is obtained by measuring on the first reference signal resource and the second interference measurement resource.

[0041] In one possible design, the CSI report includes third reference signal resource indication information and third CSI measurement information; the third reference signal resource indication information is associated with a second channel measurement resource pair, and the third channel measurement resource pair is one of the N channel measurement resource pairs; the third reference signal resource indication information is associated with a third interference measurement resource, and the third interference measurement resource is an interference measurement resource associated with the second channel measurement resource pair; the third CSI measurement information is obtained by measuring on the P reference signal resources included in the second channel measurement resource pair and the third interference measurement resource; the CSI report also includes fourth reference signal resource indication information and fourth CSI measurement information; the fourth reference signal resource indication information is associated with the second reference signal resource, and the second reference signal resource is one of the M reference signal resources; the fourth reference signal resource indication information is associated with a fourth interference measurement resource, and the fourth interference measurement resource is an interference resource associated with the second reference signal resource; the fourth CSI measurement information is obtained by measuring on the second reference signal resource and the fourth interference measurement resource.

[0042] In one possible design, the reference signal resource is an NZP CSI-RS resource, and the interference measurement resource is a CSI-IM resource.

[0043] In one possible design, the N channel measurement resource pairs correspond to non-coherent joint transmission CSI measurement assumptions, and the M channel measurement resources correspond to single TRP CSI measurement assumptions.

[0044] In a third aspect, the present application further provides an apparatus. The apparatus can execute the above-described method design. The apparatus can be a chip or circuit capable of executing the functions corresponding to the above-described method, or a device including the chip or circuit.

[0045] In one possible implementation, the apparatus includes: a memory for storing computer-executable program code; and a processor coupled to the memory. The program code stored in the memory includes instructions that, when executed by the processor, cause the apparatus or a device equipped with the apparatus to perform any of the methods described above.

[0046] The device may further include a communication interface, which may be a transceiver, or, if the device is a chip or a circuit, the communication interface may be an input / output interface of the chip, such as an input / output pin.

[0047] In one possible design, the device includes corresponding functional units for implementing the steps in the above method. The functions can be implemented by hardware or by hardware executing corresponding software implementations. The hardware or software includes one or more units corresponding to the above functions.

[0048] In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a device, it executes the method in any one of the possible designs described above.

[0049] In a fifth aspect, the present application provides a computer program product, which includes a computer program. When the computer program runs on a device, it executes the method in any one of the possible designs described above.

[0050] In a sixth aspect, the present application provides a communication system, which includes a terminal device and a network device, wherein the terminal device is used to implement any possible design in the first aspect, and the network device is used to implement any possible design in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of the architecture of a mobile communication system used in the embodiments of the present application;

[0052] Figure 2A Schematic diagram of NCJT based on multiple DCIs in an embodiment of the present application;

[0053] Figure 2B Schematic diagram of NCJT based on single DCI in an embodiment of the present application;

[0054] Figure 3 This is a flowchart summarizing a method for reporting a CSI report in an embodiment of the present application;

[0055] Figure 4A This is one of the schematic diagrams of the first association relationship in the embodiment of this application;

[0056] Figure 4B This is the second schematic diagram of the first association relationship in the embodiment of the present application;

[0057] Figure 5 Schematic diagram of the second association relationship in the embodiment of the present application;

[0058] Figure 6 This is one of the structural diagrams of a device in an embodiment of the present application;

[0059] Figure 7 This is the second structural diagram of a device in an embodiment of the present application. DETAILED DESCRIPTION

[0060] Figure 1 Schematic diagram of the architecture of the mobile communication system used in the embodiment of the present application. Figure 1 As shown, the mobile communication system includes a core network device 110, an access network device 120 and at least one terminal device (such as Figure 1 130 and terminal device 140 in the figure). Exemplarily, the terminal device is connected to the access network device, and the access network device is connected to the core network device via wireless or wired means. The core network device and the access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the access network device can be integrated into the same physical device, or the functions of some core network devices and some access network devices can be integrated into one physical device. The terminal device can be fixed in a fixed location or mobile. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, for example, relay devices and backhaul devices. Figure 1 The embodiments of the present application do not limit the number of core network devices, access network devices, and terminal devices included in the mobile communication system.

[0061] The terminal device is connected to the access network device, thereby accessing the mobile communication system. The access network device can be a base station, an evolved NodeB (eNodeB), a TRP, a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes part of the functions of a base station, for example, it can be a centralized unit (CU) or a distributed unit (DU). The embodiments of this application do not limit the specific technology and specific device form adopted by the access network device. In this application, the access network device is referred to as the network device. Unless otherwise specified, the network device refers to the access network device.

[0062] Terminal devices may also be referred to as terminals, user equipment (UE), mobile stations, mobile terminals, etc. Terminal devices may be mobile phones, tablet computers, computers with wireless transceiver functions, virtual reality terminal devices, augmented reality terminal devices, wireless terminals used in industrial control, wireless terminals used in unmanned driving, wireless terminals used in remote surgery, wireless terminals used in smart grids, wireless terminals used in transportation safety, wireless terminals used in smart cities, wireless terminals used in smart homes, etc. The embodiments of this application do not limit the specific technologies and specific device forms used by the terminal devices.

[0063] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water; can also be deployed in the air on aircraft, balloons and artificial satellites. The embodiments of this application do not limit the application scenarios of the network equipment and terminal equipment.

[0064] Network devices and terminal devices can communicate through licensed spectrum, unlicensed spectrum, or both. Network devices and terminal devices can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz simultaneously. The embodiments of the present application do not limit the spectrum resources used between network devices and terminal devices.

[0065] It can be understood that in the following embodiments, the network device is described using TRP as an example and the terminal device is described using UE as an example.

[0066] The following describes some technical concepts involved in the embodiments of this application:

[0067] 1.NCJT

[0068] NCJT is a type of multi-TRP transmission technology. Currently, Release-16 provides two specific implementations of NCJT:

[0069] Method 1: NCJT based on multiple downlink control information (DCI).

[0070] For example, Figure 2A As shown in the figure, two TRPs each transmit one DCI, and each DCI schedules one physical downlink shared channel (PDSCH). That is, these two TRPs schedule two PDSCHs to send downlink data to the same UE. Specifically, TRP1 sends DCI1 to the UE and schedules PDSCH1 to send data 1. TRP2 sends DCI2 to the UE and schedules PDSCH2 to send data 2.

[0071] Method 2: NCJT based on single DCI.

[0072] For example, Figure 2BAs shown, only one of the two TRPs transmits one DCI and schedules one PDSCH, but part of the stream / layer in this PDSCH (corresponding to a part of the demodulation reference signal (DMRS) port) is transmitted by one TRP, and the other part of the stream / layer (corresponding to another part of the DMRS port) is transmitted by another TRP. Specifically, TRP1 sends DCI1 to the UE and schedules the first group of stream / layer / DMRS ports to send data 1 to the UE, and TRP2 schedules another group of stream / layer / DMRS ports to send data 2 to the UE. The above two groups of stream / layer / DMRS ports belong to PDSCH1 scheduled by DCI1. In addition, TRP2 can also send DCI1 to the UE. Here, only TRP1 sending DCI1 is used as an example for illustration and is not a limitation of this application.

[0073] 2. Single TRP CSI Measurement Assumption

[0074] In early versions of the new radio (NR) (for example, Release-15 and Release-16), CSI measurements are based on the single-TRP CSI measurement assumption. That is, when the UE performs CSI measurement, it assumes that subsequent data transmission comes from one TRP. The UE performs CSI measurement on one reference signal resource and its associated one interference measurement resource to obtain a CSI report.

[0075] During wireless communication, the specific process for a network device (such as a TRP) to obtain a CSI report is as follows:

[0076] The network device transmits a channel state detection signal on a reference signal resource. For example, in NR, the channel state detection signal may use NZP CSI-RS.

[0077] The UE receives channel state detection signals on pre-configured reference signal resources for channel estimation. In addition, the TRP will further configure a set of interference measurement resources corresponding to the reference signal resources for the UE. Each reference signal resource is associated with one interference measurement resource. The UE receives signals on these pre-configured interference measurement resources and performs interference measurement. The UE calculates one CSI based on the channel measurement result obtained on one reference signal resource and the interference measurement result obtained on one associated interference measurement resource. When a configured set of reference signal resources includes multiple reference signal resources, the UE can calculate multiple CSIs on these multiple reference signal resources and their associated multiple interference measurement resources. The UE selects one CSI from these to form a CSI report, and the UE sends the CSI report to the TRP via the uplink channel.

[0078] Furthermore, the network device may perform scheduling based on the CSI report fed back by each UE, for example, sending downlink data to the UE on the PDSCH.

[0079] It should be noted that in the NR protocol, the network device configures reference signal resources and interference measurement resources for the UE, and the UE performs corresponding channel measurement and interference measurement based on the signal on the reference signal resource and the signal on the interference measurement resource, respectively. In order to simplify the description, the above process is simplified in the embodiment of the present application as follows: the UE performs CSI measurement on the reference signal resource and the interference measurement resource.

[0080] 3. NCJT CSI measurement assumptions

[0081] After the NCJT transmission mode was introduced in Release-16, the CSI measurements of Release-15 and Release-16 could not well support the measurement needs of the NCJT transmission mode. To this end, in Release 17 (Release-17), the existing CSI measurement is enhanced to support CSI measurements based on the NCJT CSI measurement assumption. The NCJT CSI measurement assumption means that when the UE performs CSI measurement, it assumes that subsequent data transmission comes from two TRPs. The UE performs CSI measurement on a channel measurement resource pair and its associated interference measurement resource to obtain a CSI report.

[0082] From the configuration perspective, the two reference signal resources corresponding to a channel measurement resource pair are associated with two different transmission configuration indicator state (TCI state) information, and each TCI state information contains the quasi co-location (QCL) information of the reference signal resource associated with the TCI state information. The UE receives the reference signal on the corresponding reference signal resource based on the QCL information contained in the TCI state information. Therefore, for the UE, it only needs to know the QCL information and does not necessarily need to know which TRP the reference signal resource is associated with. For the network device, the network device only needs to configure the TCI state information containing different QCL information for the two reference signal resources corresponding to the channel measurement resource pair, that is, the TRP associated with the QCL information contained in the two TCI state information associated with the two reference signal resources is different.

[0083] It can be understood that the embodiments of the present application are illustrated by taking the example of each channel measurement resource pair including 2 reference signal resources. As technology evolves, each channel measurement resource pair may include more than 2 reference signal resources, and the channel measurement resource pair can also be replaced with other names, such as reference signal resource subsets, etc. The embodiments of the present application are not limited to this. Here, only the example of each channel measurement resource pair including 2 reference signal resources is used for illustration.

[0084] 4.CSI Report

[0085] To match the single TRP CSI measurement assumption and the NCJT CSI measurement assumption, the network device configures the UE to include the following two options in a CSI report:

[0086] Option 1: CSI corresponding to m single-TRP CSI measurement assumptions and CSI corresponding to 1 NCJT CSI measurement assumption, where the value of m can be 0, 1, or 2.

[0087] Option 2: 1 CSI, which can be the CSI corresponding to the single TRP CSI measurement hypothesis or the CSI corresponding to the NCJT CSI measurement hypothesis.

[0088] For example, when N channel measurement resource pairs for supporting the NCJT CSI measurement hypothesis and M reference signal resources for supporting the single TRP measurement hypothesis are configured among the K reference signal resources, the UE can perform CSI measurements on each reference signal resource and the corresponding interference measurement resource, respectively, to obtain the CSI corresponding to the M single TRP CSI measurement hypotheses. Similarly, the UE can perform CSI measurements on each channel measurement resource pair and the corresponding interference measurement resource, respectively, to obtain the CSI corresponding to the N NCJT CSI measurement hypotheses.

[0089] Corresponding to Option 1 above, the UE selects CSI corresponding to m single-TRP CSI measurement hypotheses from the CSI corresponding to M single-TRP CSI measurement hypotheses, and selects CSI corresponding to one NCJT CSI measurement hypothesis from the CSI corresponding to N NCJT CSI measurement hypotheses. The UE sends the CSI corresponding to the m single-TRP CSI measurement hypotheses and the CSI corresponding to the one NCJT CSI measurement hypothesis to the network device.

[0090] Corresponding to Option 2 above, the UE selects CSI corresponding to one single TRP CSI measurement hypothesis from the CSI corresponding to the M single TRP CSI measurement hypotheses, or selects CSI corresponding to one NCJT CSI measurement hypothesis from the CSI corresponding to the N NCJT CSI measurement hypotheses. The UE sends the CSI corresponding to the one single TRP CSI measurement hypothesis or the CSI corresponding to the one NCJT CSI measurement hypothesis to the network device.

[0091] Among them, CSI includes one or more of CSI-RS resource indicator information (CSI-RS resource indicator, CRI), rank indicator (rank indicator, RI) information, channel quality indicator (channel quality indicator, CQI) information, precoding matrix indicator (precoding matrix indicator, PMI) PMI, and layer indicator (LI) information. Among them, CRI is used to indicate a reference signal resource or a channel measurement resource pair; RI is used to indicate the rank value; CQI is used to indicate the channel quality; PMI is used to indicate the precoding matrix information; LI is used to indicate the layer information. It can be understood that which of the above information items CSI specifically includes is determined based on the network configuration.

[0092] In order to solve the problem of a sharp increase in configuration parameters caused by configuring interference measurement resource sets corresponding to different values ​​of M, the embodiment of the present application provides a method for reporting CSI reports, such as Figure 3 As shown, the method includes:

[0093] Step 300: The network device sends first configuration information and second configuration information to the terminal device.

[0094] The first configuration information is associated with configuration information of reference signal resources, and the configuration information of the reference signal resources configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources. The second configuration information indicates M reference signal resources among the K reference signal resources, where M is a positive integer less than or equal to K, and the M reference signal resources correspond to a single TRP CSI measurement hypothesis.

[0095] Exemplarily, the reference signal resource may be an NZP CSI-RS resource, and the interference measurement resource may be a CSI-IM resource.

[0096] Step 310: The terminal device determines N channel measurement resource pairs, where N is an integer greater than or equal to 1, each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to a reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K;

[0097] The N channel measurement resource pairs correspond to the NCJT CSI measurement assumption.

[0098] For example, under normal circumstances, a channel measurement resource pair corresponds to the case where P = 2, that is, each channel measurement resource pair includes two reference signal resources. When P > 2, the channel measurement resource pair can also be described as a reference signal resource subset, or other names. This embodiment of the present application is not limited to this. This embodiment of the present application only uses the example of a channel measurement resource pair including two reference signal resources for description.

[0099] In some implementations, when the reference signal resource set includes K reference signal resources, the terminal device determines N channel measurement resource pairs from the K reference signal resources based on the configuration information of the reference signal resources, where N is an integer greater than or equal to 1, and each channel measurement resource pair includes two NZP CSI-RS resources. Determining the two reference signal resources included in the channel measurement resource pair from the K reference signal resources may be done in, but not limited to, the following manner:

[0100] Example 1: The terminal device determines a channel measurement resource pair from K reference signal resources based on the first signaling sent by the network device.

[0101] For example, the first signaling may indicate the number N of channel measurement resource pairs and N bitmaps including K bits, wherein the value of two bits in each bitmap is "0", indicating that the corresponding reference signal resources in the reference signal resource set can be used as the reference signal resources in the channel measurement resource pair, and the value of the other bits is "1", indicating that the corresponding reference signal resources in the reference signal resource set cannot be used as the reference signal resources in the channel measurement resource pair. Alternatively, the value of two bits in each bitmap is "1", indicating that the corresponding reference signal resources in the reference signal resource set can be used as the reference signal resources in the channel measurement resource pair, and the value of the other bits is "0", indicating that the corresponding reference signal resources in the reference signal resource set cannot be used as the reference signal resources in the channel measurement resource pair.

[0102] For example, the reference signal resource set includes 4 (i.e., K=4) reference signal resources, namely {#0, #1, #2, #3}. The above signaling indicates N=1 and 1 bitmap, the value of the bitmap is 0011, and the reference signal resources corresponding to #0 and #1 constitute a channel measurement resource pair.

[0103] Example 2: The terminal device determines a channel measurement resource pair from K reference signal resources according to a pre-defined rule.

[0104] For example, the preset rule may be: when the reference signal resource set includes 2 (K=2) reference signal resources, the two reference signal resources constitute one channel measurement resource pair. For example, if the two reference signal resources are {#0, #1}, the reference signal resources corresponding to #0 and #1 constitute one channel measurement resource pair.

[0105] The preset rule may also be: two adjacent reference signal resources among the K reference signal resources are combined into a channel measurement resource pair. For example, if the reference signal resource set includes four (K=4) reference signal resources, {#0, #1, #2, #3}, then reference signal resources #0 and #1 form one channel measurement resource pair, and reference signal resources #2 and #3 form another channel measurement resource pair.

[0106] Example 3: Combine Example 1 and Example 2 to determine a channel measurement resource pair.

[0107] For example, a channel measurement resource pair is determined among K reference signal resources according to the first signaling and a pre-set rule.

[0108] For example, the first signaling indicates the number N of channel measurement resource pairs, and the preset rule may be: two adjacent (or two-by-two) of the first 2N reference signal resources among the K reference signal resources are combined into N channel measurement resource pairs. For example, if the reference signal resource set includes 6 (K=6) reference signal resources, {#0, #1, #2, #3, #4, #5}, and the first signaling indicates N=2, then reference signal resources #0 and #1 constitute one channel measurement resource pair, and reference signal resources #2 and #3 constitute another channel measurement resource pair.

[0109] The first configuration information is further described below:

[0110] Exemplarily, the first configuration information is CSI report configuration information, and the CSI report configuration information includes the second configuration information. For example, in NR, the CSI report configuration information may be RRC signaling CSI measurement configuration (CSI-MeasConfig), or the CSI report configuration information may be RRC signaling CSI report configuration (CSI-ReportConfig).

[0111] In some embodiments, the CSI report configuration information includes configuration information of reference signal resources, and the configuration information of the reference signal resources is used to determine a reference signal resource set and an interference measurement resource set.

[0112] In one example, the configuration information of the reference signal resource can be the RRC signaling NZP-CSI-RS resource set (NZP-CSI-RS-ResourceSet) and the CSI-IM resource set (CSI-IM-ResourceSet), where the former is used to determine the reference signal resource set and the latter is used to determine the interference measurement resource set. For example, the reference signal resource set is the NZP CSI-RS resource set and the interference measurement resource set is the CSI-IM resource set.

[0113] In another example, the configuration information of the reference signal resource can be RRC signaling NZP-CSI-RS-ResourceSet and CSI-IM-ResourceSet, wherein the configuration information of the reference signal resource includes 2 NZP-CSI-RS-ResourceSets, 1 NZP-CSI-RS-ResourceSet is used to determine the reference signal resource set, and the other NZP-CSI-RS-ResourceSet and CSI-IM-ResourceSet are used to determine 2 interference measurement resource sets, wherein the interference measurement resource set determined by the NZP-CSI-RS-ResourceSet includes NZP CSI-RS resources for measuring multi-user interference, and the interference measurement resource set determined by the CSI-IM-ResourceSet includes CSI-IM resources for measuring neighboring cell interference.

[0114] It is understandable that in the NCJT CSI measurement assumption, interference measurement based on NZP CSI-RS resources has been excluded. The embodiments of the present application are only described using the interference measurement resource set being a CSI-IM resource set as an example. In addition, the methods provided in the embodiments of the present application are also applicable to the case where the interference measurement resource set also includes an NZP CSI-RS resource set.

[0115] The following describes possible implementations of the second configuration information:

[0116] Mode 1: The second configuration information includes K bits, where K bits correspond to K reference signal resources.

[0117] For example, the second configuration information is a K-bit bitmap, each bit corresponds to a reference signal resource, for any bit, when the value of the bit is 1, the reference signal resource corresponding to the bit is the reference signal resource corresponding to the single TRP CSI measurement assumption, or the reference signal resource corresponding to the bit is used for the CSI measurement of the single TRP CSI measurement assumption; when the value of the bit is 0, the reference signal resource corresponding to the bit is not the reference signal resource corresponding to the single TRP CSI measurement assumption, or the reference signal resource corresponding to the bit is not used for the CSI measurement of the single TRP CSI measurement assumption.

[0118] For example, when K=4, the reference signal resource set includes reference signal resource 1 to reference signal resource 4, where reference signal resource 1 and reference signal resource 2 correspond to TRP1, reference signal resource 3 and reference signal resource 4 correspond to TRP2, and one channel measurement resource pair includes reference signal resource 1 and reference signal resource 3. The second configuration information includes 4 bits of information, where the first bit is used to indicate whether reference signal resource 1 is a reference signal resource corresponding to a single TRP CSI measurement assumption, the second bit is used to indicate whether reference signal resource 2 is a reference signal resource corresponding to a single TRP CSI measurement assumption, the third bit is used to indicate whether reference signal resource 3 is a reference signal resource corresponding to a single TRP CSI measurement assumption, and the fourth bit is used to indicate whether reference signal resource 4 is a reference signal resource corresponding to a single TRP CSI measurement assumption.

[0119] Mode 2: The second configuration information indicates whether the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single transceiver point TRP CSI measurement assumption.

[0120] For example, the second configuration information includes 1 bit of information. When the value of this bit is 1, it indicates that the reference signal resources corresponding to the N channel measurement resource pairs are enabled for CSI measurement of the single TRP CSI measurement assumption. In this case, M = K. When the value of this bit is 0, it indicates that the reference signal resources corresponding to the N channel measurement resource pairs are not enabled for CSI measurement of the single TRP CSI measurement assumption. In this case, M = K-2N.

[0121] For example, when K=4, the reference signal resource set includes reference signal resource 1 to reference signal resource 4, where reference signal resource 1 and reference signal resource 2 correspond to TRP1, reference signal resource 3 and reference signal resource 4 correspond to TRP2, and one channel measurement resource pair includes reference signal resource 1 and reference signal resource 3. When the second configuration information includes one bit of information and the value of this bit is 1, reference signal resource 1, reference signal resource 2, reference signal resource 3, and reference signal resource 4 can all be used for CSI measurement under the single-TRP CSI measurement assumption. When the second configuration information includes one bit of information and the value of this bit is 0, reference signal resource 2 and reference signal resource 4 can be used for CSI measurement under the single-TRP CSI measurement assumption, and reference signal resource 1 and reference signal resource 3 cannot be used for CSI measurement under the single-TRP CSI measurement assumption and can only be used for CSI measurement under the NCJTCSI measurement assumption.

[0122] It can be understood that, since the value of M determined by the second configuration information directly determines the number of reference signal resources assumed for a single TRP CSI measurement, when the terminal device subsequently reports a CSI report, the CRI included in the CSI is used to indicate the measurement resources associated with the CSI, and the bit length or load of the CRI will be affected by the number of single TRP CSI measurement assumptions, that is, the value of M directly affects the bit length or load of subsequent CSI reports. For example, when K=4 and M=2, the CRI indicates that one of the M reference signal resources requires 1 bit, when K=4 and M=4, the CRI indicates that one of the M reference signal resources requires 2 bits, and when K=8 and M=6, the CRI indicates that one of the M reference signal resources requires 3 bits.

[0123] Therefore, when the first configuration information is CSI report configuration information and the CSI report configuration information includes the second configuration information, a CSI report configuration parameter indicated by a CSI report configuration information corresponds to a bit length or payload of a CSI report, which is beneficial to the formulation of standards and the implementation of products.

[0124] It can be understood that, among the K reference signal resources included in the reference signal resource set, M reference signal resources need to perform CSI measurement of the single TRP CSI measurement hypothesis, and N channel measurement resource pairs need to perform CSI measurement of the NCJT CSI measurement hypothesis. Since each measurement hypothesis requires one CSI-IM resource, normally, the interference measurement resource set contains X CSI-IM resources, and only X=M+N is sufficient. However, in the CSI report configuration information, the CSI report configuration information is associated with the reference signal resource set and the interference measurement resource set configured by the configuration information of the reference signal resource. When the CSI report configuration parameters contained in two CSI report configuration information are different except for the configuration parameters of the value of M (that is, the second configuration information is different), and the other configuration parameters are the same, the two CSI report configuration information can be associated with the same reference signal resource set containing K reference signal resources, and with the same N channel measurement resource pairs. Because the second configuration information is included in the CSI report configuration information, when the value of M is different, if the number of CSI-IM resources included in the interference measurement resource set is configured according to X = M + N, the same reference signal resource set will be associated with two different interference measurement resource sets according to the two CSI report configuration information. Therefore, the number of interference measurement resource set configurations will be greatly increased, increasing the storage burden of the terminal device. Therefore, in an embodiment of the present application, the interference measurement resource set includes X CSI-IM resources, where X = N + K, so that even if the value of M is different, the interference measurement resource sets associated with the same reference signal resource set are the same, which can effectively reduce the complexity of resource configuration and the storage burden of the terminal device.

[0125] The following describes the association between the interference measurement resource set and the reference signal resource set:

[0126] It should be noted that in the embodiments of the present application, the order of reference signal resources in the reference signal resource set can be understood as the order in which the identifiers of the reference signal resources appear in the configuration information of the reference signal resource set. Similarly, the order of interference measurement resources in the interference measurement resource set can be understood as the order in which the identifiers of the interference measurement resources appear in the configuration information of the interference measurement resource set.

[0127] In one implementation, the interference measurement resource set includes X interference measurement resources that have a first association relationship with K reference signal resources and N channel measurement resource pairs.

[0128] Exemplarily, a first implementation of the first association relationship is: the first association relationship may refer to the first K interference measurement resources in the interference measurement resource set being associated with K reference signal resources, and the association is based on the order of the first K interference measurement resources in the interference resource set and the order of the K reference signal resources in the reference signal resource set, and the K interference measurement resources are associated with the K reference signal resources; and the last N interference measurement resources in the interference measurement resource set are associated with N channel measurement resource pairs, and the association is based on the order of the last N interference measurement resources in the interference resource set and the order of the N channel measurement resource pairs in the reference signal resource set, and the N interference measurement resources are associated with the N channel measurement resource pairs. It should be noted that in the above example, the order of the reference signal resources in the reference signal resource set is irrelevant to the serial number of the reference signal resources, the order of the interference measurement resources in the interference resource set is irrelevant to the serial number of the interference resources, and similarly, the order of the channel measurement resource pairs in the reference signal resource set is irrelevant to the serial number of the channel measurement resource pairs.

[0129] A second implementation manner of the first association relationship is: the first association relationship may refer to the first N interference measurement resources in the interference measurement resource set being associated with N channel measurement resource pairs, and the association is in accordance with the order of the first N interference measurement resources in the interference resource set and the order of the N channel measurement resource pairs in the reference signal resource set, and the N interference measurement resources are associated with the N reference signal resources; and the last K interference measurement resources in the interference measurement resource set are associated with K reference signal resources, and the association is in accordance with the order of the last K interference measurement resources in the interference resource set and the order of the K reference signal resources in the reference signal resource set, and the K interference measurement resources are associated with K reference signal resource pairs.

[0130] The following description only takes the first implementation of the first association relationship as an example.

[0131] like Figure 4A and Figure 4B As shown, the reference signal resource set includes 4 reference signal resources, K = 4, wherein the first reference signal resource and the third reference signal resource form a channel measurement resource pair, N = 1. The corresponding interference measurement resource set includes 5 interference measurement resources, X = K + N = 5.

[0132] For example, the order in which the identifiers of the four reference signal resources appear in the configuration information of the reference signal resource set may be NZP-CSI-RS-ResourceId=12, NZP-CSI-RS-ResourceId=8, NZP-CSI-RS-ResourceId=14, NZP-CSI-RS-ResourceId=6.

[0133] The order in which the identifiers of the five interference measurement resources appear in the configuration information of the interference measurement resource set may be CSI-IM-ResourceId=5, CSI-IM-ResourceId=4, CSI-IM-ResourceId=2, CSI-IM-ResourceId=10, and CSI-IM-ResourceId=6.

[0134] The four reference signal resources in the reference signal resource set are associated with the first four interference measurement resources in the interference measurement resource set according to the order of the four reference signal resources in the reference signal resource set and the order of the first four interference measurement resources in the interference measurement resource set. That is, the first reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 12) is associated with the first interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 5), the second reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 8) is associated with the second interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 4), the third reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 14) is associated with the interference measurement resource. The channel measurement resource pair in the reference signal resource set is associated with the third interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 2), and the fourth reference signal resource in the reference signal resource set (corresponding NZP-CSI-RS-ResourceId is 6) is associated with the fourth interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 10); the channel measurement resource pair in the reference signal resource set is associated with the last N=1 interference measurement resources in the interference measurement resource set in sequence, that is, the channel measurement resource pair is associated with the last one, that is, the fifth interference measurement resource (corresponding CSI-IM-ResourceId is 6).

[0135] Exemplarily, when the second configuration information indicates that four reference signal resources are used for CSI measurement of a single TRP measurement hypothesis, for example, the second configuration information includes 1 bit of information, the value of which is 1, indicating that one channel measurement resource pair is enabled to be used for the reference signal resources included in the CSI measurement of the single TRP measurement hypothesis. As described above, each reference signal resource and the associated interference measurement resource are as follows: Figure 4A shown.

[0136] Exemplarily, when the second configuration information indicates that two reference signal resources are used for CSI measurement of a single TRP measurement assumption, for example, the second configuration information includes 1 bit of information, the value of which is 0, indicating that the reference signal resources contained in one channel measurement resource pair are enabled not to be used for CSI measurement of a single TRP measurement assumption. The reference signal resources used for the single TRP measurement assumption only include the second reference signal resource and the fourth reference signal resource. As mentioned above, the second reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 8) is associated with the second interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 4), and the fourth reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 6) is associated with the fourth interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 10). The channel measurement resource pair in the reference signal resource set is associated with the last N=1 interference measurement resources in the interference measurement resource set in sequence, that is, the channel measurement resource pair is associated with the last one, that is, the fifth interference measurement resource (the corresponding CSI-IM-ResourceId is 6), as shown in FIG. Figure 4B shown.

[0137] By adopting the first association relationship, even if the value of M indicated by the second configuration information is different, the reference signal resource or channel measurement resource pair associated with the same interference measurement resource will not change, which is beneficial to the accuracy of interference measurement. In particular, when the interference measurement resource is a periodic or semi-continuous resource, the terminal device often performs time domain filtering. When the reference signal resource or channel measurement resource pair associated with the same interference measurement resource remains unchanged, this is beneficial to filtering performance and improves the accuracy of interference estimation.

[0138] In another implementation, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and N channel measurement resource pairs.

[0139] Exemplarily, a first implementation manner of the second association relationship is: the second association relationship may refer to the first M interference measurement resources in the interference measurement resource set being associated with M reference signal resources, and the association is in accordance with the order of the first M interference measurement resources in the interference resource set and the order of the M reference signal resources in the reference signal resource set, and the M interference measurement resources are associated with the M reference signal resources; and the last N interference measurement resources in the interference measurement resource set are associated with N channel measurement resource pairs, and the association is in accordance with the order of the last N interference measurement resources in the interference resource set and the order of the N channel measurement resource pairs, and the N interference measurement resources are associated with the N channel measurement resource pairs.

[0140] A second implementation manner of the second association relationship is: the second association relationship may refer to the first N interference measurement resources in the interference measurement resource set being associated with N reference signal resource pairs, and the association is in accordance with the order of the first N interference measurement resources in the interference resource set and the order of the N reference signal resource pairs, and the N interference measurement resources are associated with the N reference signal resource pairs; and the last M interference measurement resources in the interference measurement resource set are associated with M channel measurement resources, and the association is in accordance with the order of the last M interference measurement resources in the interference resource set and the order of the M channel measurement resources in the reference signal resource set, and the M interference measurement resources are associated with the M channel measurement resources.

[0141] The following description only takes the first implementation of the second association relationship as an example.

[0142] like Figure 4A and Figure 5 As shown, the reference signal resource set includes 4 reference signal resources, K = 4, wherein the first reference signal resource and the third reference signal resource form a channel measurement resource pair, N = 1. The corresponding interference measurement resource set includes 5 interference measurement resources, X = K + N = 5.

[0143] For example, the order in which the identifiers of the four reference signal resources appear in the configuration information of the reference signal resource set may be NZP-CSI-RS-ResourceId=12, NZP-CSI-RS-ResourceId=8, NZP-CSI-RS-ResourceId=14, NZP-CSI-RS-ResourceId=6.

[0144] The order in which the identifiers of the five interference measurement resources appear in the configuration information of the interference measurement resource set may be CSI-IM-ResourceId=5, CSI-IM-ResourceId=4, CSI-IM-ResourceId=2, CSI-IM-ResourceId=10, and CSI-IM-ResourceId=6.

[0145] Exemplarily, when the second configuration information indicates that four reference signal resources are used for CSI measurement of a single TRP measurement hypothesis, for example, the second configuration information includes 1 bit of information, the value of which is 1, indicating that one channel measurement resource pair containing the reference signal resources is enabled for CSI measurement of a single TRP measurement hypothesis, and each reference signal resource and the associated interference measurement resource are as follows: Figure 4A As shown. The 4 reference signal resources in the reference signal resource set are associated with the first 4 interference measurement resources in the interference measurement resource set, according to the order of the 4 reference signal resources in the reference signal resource set and the order of the first 4 interference measurement resources in the interference measurement resource set. That is, the first reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 12) is associated with the first interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 5), the second reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 8) is associated with the second interference measurement resource in the interference measurement resource set (the corresponding CSI-IM-ResourceId is 4), the third reference signal resource in the reference signal resource set (the corresponding NZP-CSI-RS-ResourceId is 14) is associated with the interference measurement resource. The channel measurement resource pair in the reference signal resource set is associated with the third interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 2), and the fourth reference signal resource in the reference signal resource set (corresponding NZP-CSI-RS-ResourceId is 6) is associated with the fourth interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 10); the channel measurement resource pair in the reference signal resource set is associated with the last N=1 interference measurement resources in the interference measurement resource set in sequence, that is, the channel measurement resource pair is associated with the last one, that is, the fifth interference measurement resource (corresponding CSI-IM-ResourceId is 6).

[0146] Exemplarily, when the second configuration information indicates that two reference signal resources are used for CSI measurement of a single TRP measurement assumption, for example, the second configuration information includes one bit of information, the value of which is 0, indicating that the reference signal resources included in one channel measurement resource pair are enabled not to be used for CSI measurement of the single TRP measurement assumption. The only reference signal resources used for the single TRP measurement assumption are the second reference signal resource and the fourth reference signal resource.

[0147] like Figure 5 As shown, the second reference signal resource and the fourth reference signal resource in the reference signal resource set are associated with the first two interference measurement resources in the interference measurement resource set according to the order of the second reference signal resource and the fourth reference signal resource in the reference signal resource set and the order of the first two interference measurement resources in the interference measurement resource set. That is, the second reference signal resource in the reference signal resource set (corresponding NZP-CSI-RS-ResourceId is 8) is associated with the first interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 5), and the fourth reference signal resource in the reference signal resource set (corresponding NZP-CSI-RS-ResourceId is 6) is associated with the second interference measurement resource in the interference measurement resource set (corresponding CSI-IM-ResourceId is 4); the channel measurement resource pair in the reference signal resource set is sequentially associated with the last N=1 interference measurement resources in the interference measurement resource set, that is, the channel measurement resource pair is associated with the last one, that is, the fifth interference measurement resource (corresponding CSI-IM-ResourceId is 6).

[0148] By adopting the second association relationship, when the second configuration information indicates that the reference signal resources included in the N channel measurement resource pairs are not used for the CSI measurement of the single-TRP CSI measurement hypothesis, the interference measurement resources associated with the M reference signal resources for the CSI measurement of the single-TRP CSI measurement hypothesis are continuous. Since the CRI needs to have an association relationship with the interference measurement resource, the number of bits of CRI feedback can be reduced. At the same time, the same interference measurement resource has an association relationship with the reference signal resource for the CSI measurement of the single-TRP measurement hypothesis, or has an association relationship with the reference signal resource for the CSI measurement of the NCJT CSI measurement hypothesis.

[0149] Step 320: The terminal device obtains a CSI report.

[0150] The CSI report is associated with the M reference signal resources and their associated M interference measurement resources, and the reference signal resources included in the N channel measurement resource pairs and their associated N interference measurement resources.

[0151] Exemplarily, the CSI report includes reference signal resource indication information and CSI measurement information, wherein the bit length of the reference signal resource indication information is determined by K and N; or, the bit length of the reference signal resource indication information is determined by M and N.

[0152] For example, corresponding to the first association relationship, the bit length of the reference signal resource indication information may be determined by K and N. In addition, corresponding to the first association relationship, the bit length of the reference signal resource indication information may also be determined by M and N.

[0153] For example, corresponding to the second association relationship, the bit length of the reference signal resource indication information may be determined by M and N. In addition, corresponding to the second association relationship, the bit length of the reference signal resource indication information may also be determined by K and N.

[0154] The CSI measurement information includes one or more of PMI information, CQI information, RI information, and LI information.

[0155] In one implementation, the reference signal resource indication information is first reference signal resource indication information; and the CSI measurement information is first CSI measurement information. The first reference signal resource indication information is associated with a first channel measurement resource pair, which is one of N channel measurement resource pairs. The first reference signal resource indication information is associated with a first interference measurement resource, which is an interference measurement resource associated with the first channel measurement resource pair. The first CSI measurement information is obtained by measuring the P reference signal resources and the first interference measurement resource included in the first channel measurement resource pair.

[0156] In one implementation, the reference signal resource indication information is second reference signal resource indication information; and the CSI measurement information is second CSI measurement information. The second reference signal resource indication information is associated with a first reference signal resource, which is one of the M reference signal resources. The second reference signal resource indication information is associated with a second interference measurement resource, which is an interference measurement resource associated with the first reference signal resource. The second CSI measurement information is obtained by measuring the first reference signal resource and the second interference measurement resource.

[0157] In one implementation, the reference signal resource indication information is third reference signal resource indication information and fourth reference signal resource indication information, and the CSI measurement information is third CSI measurement information and fourth CSI measurement information.

[0158] The third reference signal resource indication information is associated with the second channel measurement resource pair, which is one of the N channel measurement resource pairs. The third reference signal resource indication information is associated with a third interference measurement resource, which is an interference measurement resource associated with the second channel measurement resource pair. The third CSI measurement information is obtained by measuring the P reference signal resources and the third interference measurement resource included in the second channel measurement resource pair.

[0159] The fourth reference signal resource indication information is associated with the second reference signal resource, where the second reference signal resource is one of the M reference signal resources. The fourth reference signal resource indication information is associated with a fourth interference measurement resource, where the fourth interference measurement resource is an interference resource associated with the second reference signal resource. The fourth CSI measurement information is obtained by measuring on the second reference signal resource and the fourth interference measurement resource.

[0160] Exemplarily, the terminal device performs CSI measurement on each reference signal resource among M reference signal resources and its associated interference measurement resource to obtain CSI corresponding to M single TRP CSI measurement hypotheses.

[0161] At the same time, the terminal device performs CSI measurement on each channel measurement resource pair in the N channel measurement resource pairs and its associated interference measurement resources to obtain CSI corresponding to N NCJT CSI measurement hypotheses.

[0162] Based on the above description of CSI reporting, corresponding to option 1, the terminal device can select m CSIs corresponding to single TRP CSI measurement hypotheses from the CSIs corresponding to M single TRPCSI measurement hypotheses, and select 1 CSI corresponding to NCJT CSI measurement hypothesis from the CSIs corresponding to N NCJT CSI measurement hypotheses to obtain a CSI report.

[0163] Corresponding to option 2 above, the terminal device selects the CSI corresponding to one single TRPCSI measurement hypothesis from the CSI corresponding to M single TRP CSI measurement hypotheses, or selects the CSI corresponding to one NCJT CSI measurement hypothesis from the CSI corresponding to N NCJT CSI measurement hypotheses to obtain a CSI report.

[0164] Step 330: The terminal device sends a CSI report to the network device.

[0165] Using the above Figure 3The illustrated embodiment solves the problem of how to configure the number of interference measurement resources configured in the interference measurement resource set associated with the reference signal resource set under the NCJT CSI measurement assumption, and how to associate the interference measurement resources in the interference measurement resource set with the reference signal resources for the single TRP CSI measurement assumption and the channel measurement resource pair for the NCJT CSI measurement assumption. The interference measurement resource set includes X interference measurement resources, where X = N + K. This allows the same interference measurement resource set associated with the same reference signal resource set to be identical even if the value of M is different, effectively reducing the complexity of resource configuration and the storage burden on terminal devices.

[0166] Figure 6 A possible exemplary block diagram of a device involved in an embodiment of the present application is shown. The device 600 includes a transceiver module 610 and a processing module 620. The transceiver module 610 may include a receiving unit and a sending unit. The processing module 620 is configured to control and manage the operation of the device 600. The transceiver module 610 is configured to support communication between the device 600 and other network entities. Optionally, the device 600 may also include a storage unit for storing program code and data of the device 600.

[0167] Optionally, each module in the apparatus 600 may be implemented by software.

[0168] Optionally, the processing module 620 can be a processor or a controller, for example, a general-purpose central processing unit (CPU), a general-purpose processor, a digital signal processing (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute the various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the embodiments of the present application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The transceiver module 610 can be a communication interface, a transceiver or a transceiver circuit, etc., wherein the communication interface is a general term. In a specific implementation, the communication interface can include multiple interfaces, and the storage unit can be a memory.

[0169] When the apparatus 600 is a terminal device or a chip in the terminal device, the processing module 620 in the apparatus 600 can support the apparatus 600 to perform the actions of the terminal device in the above method examples. For example, the processing module 620 can support the apparatus 600 to perform Figure 3 Step 310, step 320 in.

[0170] The transceiver module 610 can support the communication between the apparatus 600 and the network device. For example, the transceiver module 610 can support the apparatus 600 to perform Figure 3 Step 300, step 330 in.

[0171] For example, it can be as follows:

[0172] In one implementation, the apparatus 600 includes:

[0173] The transceiver module 610 is configured to receive first configuration information and second configuration information; the first configuration information is associated with configuration information of a reference signal resource, the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources;

[0174] The processing module 620 is configured to determine N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates M reference signal resources among the K reference signal resources, where M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs;

[0175] The processing module 620 controls the transceiver module to obtain a CSI report, where the CSI report is associated with the M reference signal resources and their associated M interference measurement resources, and the reference signal resources included in the N channel measurement resource pairs and their associated N interference measurement resources;

[0176] The transceiver module 610 is configured to send the CSI report to a network device.

[0177] It should be understood that the device 600 according to the embodiment of the present application may correspond to the terminal device in the aforementioned method embodiment, and the operations and / or functions of the various modules in the device 600 are respectively for implementing the corresponding steps of the method of the terminal device in the aforementioned method embodiment, and therefore the beneficial effects in the aforementioned method embodiment can also be achieved. For the sake of brevity, they are not elaborated here.

[0178] When the apparatus 600 is a network device or a chip in the network device, the processing module 620 in the apparatus 600 may support the apparatus 600 in executing the actions of the network device in the above method examples.

[0179] The transceiver module 610 can support the communication between the apparatus 600 and the terminal device. For example, the transceiver module 610 can support the apparatus 600 to perform Figure 3 Step 300, step 330 in.

[0180] For example, it can be as follows:

[0181] In one implementation, the transceiver module 610 is configured to send first configuration information and second configuration information to the terminal device; the first configuration information is associated with configuration information of a reference signal resource, and the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources;

[0182] The processing module 620 is configured to determine N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates M reference signal resources among the K reference signal resources, where M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs;

[0183] The transceiver module 610 is used to: send reference signals on the K reference signal resources respectively, and receive a CSI report from the terminal device, wherein the CSI report is associated with the M reference signal resources and their associated M interference measurement resources, and the reference signal resources contained in the N channel measurement resource pairs and their associated N interference measurement resources.

[0184] It should be understood that the device 600 according to the embodiment of the present application may correspond to the method of the network device in the aforementioned method embodiment, and the operations and / or functions of the various modules in the device 600 are respectively for implementing the corresponding steps of the method of the network device in the aforementioned method embodiment, and therefore the beneficial effects in the aforementioned method embodiment can also be achieved. For the sake of brevity, they are not elaborated here.

[0185] Figure 7 FIG shows a schematic structural diagram of a communication device 700 according to an embodiment of the present application. Figure 7 As shown, the device 700 includes: a processor 701.

[0186] When the apparatus 600 is a terminal device or a chip in the terminal device, in one possible implementation, when the processor 701 is configured to call an interface, the following actions are performed:

[0187] Receive first configuration information and second configuration information; the first configuration information is associated with configuration information of a reference signal resource, the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources; determine N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates K reference signal resources. The method further comprises: obtaining M reference signal resources from the interference measurement resource set, where M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources from the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs; obtaining a CSI report, where the CSI report has an association relationship with the M reference signal resources and their associated M interference measurement resources, and the reference signal resources included in the N channel measurement resource pairs and their associated N interference measurement resources; and sending the CSI report to a network device.

[0188] It should be understood that the apparatus 700 may also be used to execute other steps and / or operations on the terminal device side in the foregoing embodiments, which are not described here for the sake of brevity.

[0189] When the apparatus 600 is a network device or a chip in the network device, in one possible implementation, when the processor 701 is configured to call an interface, the following actions are performed:

[0190] Sending first configuration information and second configuration information to the terminal device; the first configuration information is associated with the configuration information of the reference signal resource, the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources, and the interference measurement resource set includes X interference measurement resources; determining N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes P reference signal resources, and the P reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, P is an integer greater than or equal to 2, K is an integer greater than or equal to P, and X satisfies X=N+K; the second configuration information indicates M of the K reference signal resources reference signal resources, M is a positive integer less than or equal to K; the X interference measurement resources included in the interference measurement resource set have a first association relationship with the K reference signal resources and the N channel measurement resource pairs; or, M+N interference measurement resources among the X interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs; reference signals are respectively sent on the K reference signal resources; and a CSI report is received from the terminal device, where the CSI report has an association relationship with the M reference signal resources and their associated M interference measurement resources, and the reference signal resources included in the N channel measurement resource pairs and their associated N interference measurement resources.

[0191] It should be understood that the apparatus 700 may also be used to execute other steps and / or operations on the network device side in the foregoing embodiments, which are not described here for the sake of brevity.

[0192] It should be understood that the processor 701 can call an interface to perform the above-mentioned sending and receiving actions, wherein the called interface can be a logical interface or a physical interface, which is not limited to this. Optionally, the physical interface can be implemented by a transceiver. Optionally, the device 700 also includes a transceiver 703.

[0193] Optionally, the apparatus 700 further includes a memory 702 , which can store program codes in the above method embodiments for easy calling by the processor 701 .

[0194] Specifically, if the device 700 includes a processor 701, a memory 702, and a transceiver 703, the processor 701, the memory 702, and the transceiver 703 communicate with each other through an internal connection path to transmit control and / or data signals. In one possible design, the processor 701, the memory 702, and the transceiver 703 can be implemented by a chip. The processor 701, the memory 702, and the transceiver 703 can be implemented in the same chip, or they can be implemented in different chips, or any two of their functions can be combined and implemented in a single chip. The memory 702 can store program code, and the processor 701 calls the program code stored in the memory 702 to implement the corresponding functions of the device 700.

[0195] The methods disclosed in the above embodiments of the present application can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, the steps of the above method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in software form. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chip. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0196] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0197] It should be understood that in the embodiments of the present application, the numbers "first", "second"... are only for distinguishing different objects, such as to distinguish different parameter information or messages, and do not constitute a limitation on the scope of the embodiments of the present application. The embodiments of the present application are not limited to this.

[0198] It should also be understood that in the various embodiments of the present application, the order of execution of the above-mentioned processes does not necessarily indicate the order in which they are executed. The order in which the processes are executed should be determined by their functions and internal logic. The various numbers or serial numbers involved in the above-mentioned processes are merely for the convenience of description and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0199] It should also be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " as used herein generally indicates that the associated objects are in an "or" relationship.

[0200] In this application, expressions similar to “the item includes one or more of the following: A, B, and C” generally mean, unless otherwise specified, that the item can be any one of the following: A; B; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A, C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C. The above examples use A, B, and C as an example to illustrate the optional items of the item. When the expression is “the item includes at least one of the following: A, B, …, and X”, that is, when the expression contains more elements, the items applicable to the item can also be obtained according to the above rules.

[0201] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0202] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0203] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0204] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0205] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0206] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

[0207] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for reporting channel state information (CSI), characterized in that: include: receiving first configuration information and second configuration information; The first configuration information is associated with configuration information of a reference signal resource, where the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources; Determine N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes two reference signal resources, and the two reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, and K is an integer greater than or equal to 2; The second configuration information indicates whether the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single transceiver point TRP CSI measurement assumption; Obtaining a CSI report, where the CSI report is associated with M reference signal resources and their associated M interference measurement resources and / or reference signal resources included in the N channel measurement resource pairs and their associated N interference measurement resources; the M reference signal resources correspond to a single TRP CSI measurement hypothesis, the M reference signal resources belong to the reference signal resource set, M is a positive integer less than or equal to K, and the M interference measurement resources and the N interference measurement resources belong to the interference measurement resource set; The CSI report is sent to a network device.

2. The method according to claim 1, wherein If the second configuration information indicates that the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single TRPCSI measurement assumption, M=K; If the second configuration information indicates that the reference signal resources corresponding to the N channel measurement resource pairs are not used for CSI measurement of a single TRPCSI measurement assumption, the value of M is the difference between K and the number of reference signal resources required to constitute the N channel measurement resource pairs.

3. The method according to claim 1 or 2, wherein: The second configuration information indicates the M reference signal resources among the K reference signal resources.

4. The method according to claim 1 or 2, wherein: The first configuration information is CSI report configuration information, and the CSI report configuration information includes the second configuration information.

5. The method according to claim 4, wherein The CSI report configuration information is a radio resource control RRC signaling CSI measurement configuration, or; The CSI report configuration information is RRC signaling CSI report configuration.

6. The method according to claim 1 or 2, wherein: The last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs, and the association is based on the order of the N interference measurement resources in the interference resource set and the order of the N channel measurement resource pairs, and the N interference measurement resources are associated with the N channel measurement resource pairs.

7. The method according to claim 1 or 2, wherein: The M+N interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs.

8. The method according to claim 7, wherein The M+N interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and N channel measurement resource pairs, which means: First M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in an order in which the M interference measurement resources are in the interference measurement resource set, and last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order in which the N interference measurement resources are in the interference measurement resource set; or, The first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order in which the N interference measurement resources are in the interference measurement resource set, and the last M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in an order in which the M interference measurement resources are in the interference measurement resource set.

9. The method according to claim 1 or 2, wherein: The CSI report includes reference signal resource indication information and CSI measurement information, wherein the bit length of the reference signal resource indication information is determined by K and N; or, The bit length of the reference signal resource indication information is determined by M and N; The CSI measurement information includes one or more of precoding matrix indication PMI information, channel quality indication CQI information, rank indication RI information, and layer indication LI information.

10. The method according to claim 9, wherein The reference signal resource indication information is first reference signal resource indication information; the CSI measurement information is first CSI measurement information; The first reference signal resource indication information is associated with a first channel measurement resource pair, and the first channel measurement resource pair is one of the N channel measurement resource pairs; The first reference signal resource indication information is associated with a first interference measurement resource, and the first interference measurement resource is an interference measurement resource associated with the first channel measurement resource pair; The first CSI measurement information is obtained by measuring on two reference signal resources included in the first channel measurement resource pair and the first interference measurement resource.

11. The method according to claim 9, wherein The reference signal resource indication information is second reference signal resource indication information; the CSI measurement information is second CSI measurement information; The second reference signal resource indication information is associated with a first reference signal resource, and the first reference signal resource is one of the M reference signal resources; The second reference signal resource indication information is associated with a second interference measurement resource, and the second interference measurement resource is an interference measurement resource associated with the first reference signal resource; The second CSI measurement information is obtained by measuring on the first reference signal resource and the second interference measurement resource.

12. The method according to claim 9, wherein The CSI report includes third reference signal resource indication information and third CSI measurement information; The third reference signal resource indication information is associated with a second channel measurement resource pair, where the second channel measurement resource pair is one of the N channel measurement resource pairs; The third reference signal resource indication information is associated with a third interference measurement resource, and the third interference measurement resource is an interference measurement resource associated with the second channel measurement resource pair; The third CSI measurement information is obtained by measuring on the two reference signal resources included in the second channel measurement resource pair and the third interference measurement resource; The CSI report further includes fourth reference signal resource indication information and fourth CSI measurement information; The fourth reference signal resource indication information is associated with a second reference signal resource, where the second reference signal resource is one of the M reference signal resources; The fourth reference signal resource indication information is associated with a fourth interference measurement resource, and the fourth interference measurement resource is an interference resource associated with the second reference signal resource; The fourth CSI measurement information is obtained by measuring on the second reference signal resource and the fourth interference measurement resource.

13. The method according to claim 1 or 2, wherein: The reference signal resource is a non-zero power channel state information reference signal NZP CSI-RS resource, and the interference measurement resource is a channel state information interference measurement CSI-IM resource.

14. The method according to claim 1 or 2, wherein: The N channel measurement resource pairs correspond to non-coherent joint transmission CSI measurement assumptions, and the M reference signal resources correspond to single TRP CSI measurement assumptions.

15. A method for reporting a CSI report, characterized in that: include: Sending first configuration information and second configuration information to the terminal device; The first configuration information is associated with configuration information of a reference signal resource, where the configuration information of the reference signal resource configures a reference signal resource set and an interference measurement resource set, wherein the reference signal resource set includes K reference signal resources; Determine N channel measurement resource pairs, where N is an integer greater than or equal to 1, wherein each channel measurement resource pair includes two reference signal resources, and the two reference signal resources included in each channel measurement resource pair belong to the reference signal resource set, and K is an integer greater than or equal to 2; The second configuration information indicates whether the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single TRPCSI measurement assumption; Sending reference signals on the K reference signal resources respectively; Receive a CSI report from the terminal device, where the CSI report is associated with the M reference signal resources and their associated M interference measurement resources and / or the reference signal resources contained in the N channel measurement resource pairs and their associated N interference measurement resources, the M reference signal resources correspond to a single TRP CSI measurement hypothesis, the M reference signal resources belong to the reference signal resource set, M is a positive integer less than or equal to K, and the M interference measurement resources and the N interference measurement resources belong to the interference measurement resource set.

16. The method according to claim 15, wherein If the second configuration information indicates that the reference signal resources corresponding to the N channel measurement resource pairs are used for CSI measurement of a single TRPCSI measurement assumption, M=K; If the second configuration information indicates that the reference signal resources corresponding to the N channel measurement resource pairs are not used for CSI measurement of a single TRPCSI measurement assumption, the value of M is the difference between K and the number of reference signal resources required to constitute the N channel measurement resource pairs.

17. The method according to claim 15 or 16, wherein: The second configuration information indicates the M reference signal resources among the K reference signal resources.

18. The method according to claim 15 or 16, wherein: The first configuration information is CSI report configuration information, and the CSI report configuration information includes the second configuration information.

19. The method according to claim 18, wherein The CSI report configuration information is a radio resource control RRC signaling CSI measurement configuration, or; The CSI report configuration information is RRC signaling CSI report configuration.

20. The method according to claim 15 or 16, wherein The last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs, and the association is based on the order of the N interference measurement resources in the interference resource set and the order of the N channel measurement resource pairs, and the N interference measurement resources are associated with the N channel measurement resource pairs.

21. The method according to claim 15 or 16, wherein: The M+N interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and the N channel measurement resource pairs.

22. The method according to claim 15 or 16, wherein: The M+N interference measurement resources included in the interference measurement resource set have a second association relationship with the M reference signal resources and N channel measurement resource pairs, which means: First M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in an order in which the M interference measurement resources are in the interference measurement resource set, and last N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order in which the N interference measurement resources are in the interference measurement resource set; or, The first N interference measurement resources in the interference measurement resource set are associated with the N channel measurement resource pairs in an order in which the N interference measurement resources are in the interference measurement resource set, and the last M interference measurement resources in the interference measurement resource set are associated with the M reference signal resources in an order in which the M interference measurement resources are in the interference measurement resource set.

23. The method according to claim 15 or 16, wherein: The CSI report includes reference signal resource indication information and CSI measurement information, wherein the bit length of the reference signal resource indication information is determined by K and N; or, The bit length of the reference signal resource indication information is determined by M and N; The CSI measurement information includes one or more of PMI information, CQI information, RI information, and LI information.

24. The method according to claim 23, wherein The reference signal resource indication information is first reference signal resource indication information; the CSI measurement information is first CSI measurement information; The first reference signal resource indication information is associated with a first channel measurement resource pair, and the first channel measurement resource pair is one of the N channel measurement resource pairs; The first reference signal resource indication information is associated with a first interference measurement resource, and the first interference measurement resource is an interference measurement resource associated with the first channel measurement resource pair; The first CSI measurement information is obtained by measuring on two reference signal resources included in the first channel measurement resource pair and the first interference measurement resource.

25. The method of claim 23, wherein: The reference signal resource indication information is second reference signal resource indication information; the CSI measurement information is second CSI measurement information; The second reference signal resource indication information is associated with a first reference signal resource, and the first reference signal resource is one of the M reference signal resources; The second reference signal resource indication information is associated with a second interference measurement resource, and the second interference measurement resource is an interference measurement resource associated with the first reference signal resource; The second CSI measurement information is obtained by measuring on the first reference signal resource and the second interference measurement resource.

26. The method of claim 23, wherein: The CSI report includes third reference signal resource indication information and third CSI measurement information; The third reference signal resource indication information is associated with a second channel measurement resource pair, where the second channel measurement resource pair is one of the N channel measurement resource pairs; The third reference signal resource indication information is associated with a third interference measurement resource, and the third interference measurement resource is an interference measurement resource associated with the second channel measurement resource pair; The third CSI measurement information is obtained by measuring on the two reference signal resources included in the second channel measurement resource pair and the third interference measurement resource; The CSI report further includes fourth reference signal resource indication information and fourth CSI measurement information; The fourth reference signal resource indication information is associated with a second reference signal resource, where the second reference signal resource is one of the M reference signal resources; The fourth reference signal resource indication information is associated with a fourth interference measurement resource, and the fourth interference measurement resource is an interference resource associated with the second reference signal resource; The fourth CSI measurement information is obtained by measuring on the second reference signal resource and the fourth interference measurement resource.

27. The method according to claim 15 or 16, wherein The reference signal resource is an NZP CSI-RS resource, and the interference measurement resource is a CSI-IM resource.

28. The method according to claim 15 or 16, wherein The N channel measurement resource pairs correspond to non-coherent joint transmission CSI measurement assumptions, and the M reference signal resources correspond to single TRP CSI measurement assumptions.

29. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 28 through a logic circuit or executing code instructions.

30. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction, and when the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 28 is implemented.

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