Method and related apparatus for determining channel state information measurement parameters

Abstract

This application provides a method and related apparatus for determining channel state information measurement parameters. The method involves a terminal device receiving a number of reference signal resources N used for channel state information (CSI) measurement from a network device. TRP This includes receiving first information indicating that the CSI report type is a periodic CSI report, and N TRP is a positive integer greater than or equal to 1. The terminal device determines the time-domain location of the CSI reference resource based on the first information. The technical solution provided in this application can increase the success rate of CSI reporting by the terminal device.

Description

[Technical Field]

[0001] This application claims priority to Chinese Patent Application No. 202310215095.8, filed with the China National Intellectual Property Administration on 25 February 2023, entitled “Method and related apparatus for determining channel state information measurement parameters,” which is incorporated herein by reference in its entirety. This application relates to the field of wireless communication technology, and more particularly to a method and related apparatus for determining channel state information measurement parameters. [Background technology]

[0002] Channel state information (CSI) is a key parameter reflecting channel quality and is extremely important in wireless communication processes. In wireless communication, channel and interference measurements are typically performed by detecting a reference signal. For example, downlink channel quality and interference can be measured using a channel state information-reference signal (CSI-RS). Specifically, a network device may transmit a CSI-RS to a terminal device, the terminal device may calculate the CSI based on the received CSI-RS and report the CSI to the network device, and the network device may determine the channel state based on the received CSI.

[0003] To improve the throughput performance and user experience of communication systems, multiple transmission reception points (TRPs) can serve a single user device using a multi-station coordination method. Many multi-station coordination methods exist, such as coherent joint transmission (CJT) and non-coherent joint transmission (NCJT). In the CJT coordination method, multiple TRPs can serve a terminal device simultaneously. In this case, the terminal device needs to report a joint CSI of multiple TRPs to enable coherent joint transmission of those TRPs. Measuring and calculating the joint CSI of multiple TRPs is relatively complex, making it significantly difficult for the terminal device to perform. Ensuring that the terminal device has sufficient time to complete the CSI measurement and calculation, thereby guaranteeing a success rate in reporting the CSI by the terminal device, is an urgent problem that needs to be solved. [Overview of the Initiative] [Means for solving the problem]

[0004] Embodiments of this application provide a method and associated apparatus for determining CSI measurement parameters, which may include a method and associated apparatus for determining a CSI reference resource, as well as a method and associated apparatus for determining a time-domain position interval. Embodiments of this application can increase the success rate of reporting CSI by terminal devices.

[0005] According to a first aspect, the present application provides a method for determining CSI reference resources. The method may be applied to a terminal device, a device within a terminal device (e.g., a chip, a chip system, or a circuit), or a device that can be used in conjunction with a terminal device. An example of the method being applied to a terminal device is used below for the purposes of this description. The method involves a terminal device receiving first information from a network device, and the first information being the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP This may include the fact that is a positive integer greater than or equal to 1. The terminal device determines the time-domain location of the CSI reference resource based on the first information.

[0006] In the solution provided in this application, the terminal device has a number of reference signal resources N used for CSI measurement, indicated by first information from the network device. TRP The time-domain position of the CSI reference resource can be determined based on this, and the CSI reporting type is aperiodic reporting. Currently, joint CSI feedback corresponding to multiple reference signal resources has not been considered with respect to predefined time-domain position values ​​of the CSI reference resource, which can cause problems in which terminal devices cannot complete CSI calculations and reports within a specified value. In this embodiment of the present application, the time-domain position value of the CSI reference resource is related to the number of reference signal resources. This can ensure that terminal devices can complete CSI measurements, calculations, and reports, thereby increasing the success rate of CSI reporting.

[0007] In possible embodiments, the terminal device determines the time-domain location of the CSI reference resource based on the first information, and the terminal device determines the reference slot interval n ref Based on this, the time-domain location of the CSI reference resource is determined, and when the downlink control information (DCI) that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref but,

Number

Number

[0008] According to a second aspect, the present application provides a method for determining a time-domain position interval. This method can be applied to a terminal device, a device within the terminal device (e.g., a chip, a chip system, or a circuit), or a device that can be used in cooperation with the terminal device. An example where this method is applied to a terminal device is used below for description. The method is that the terminal device receives first information from a network device, and the first information indicates the number N TRP of reference signal resources used for CSI measurement, the CSI reporting type is an aperiodic CSI report, and N TRP can include being a positive integer of 1 or more. The terminal device determines the minimum interval Z between the time-domain position of the resource where the aperiodic CSI report is executed and the time-domain position of the resource where the DCI that triggers the aperiodic CSI report is arranged based on the first information.

[0009] In the solution provided by the present application, the terminal device is the number N of reference signal resources used for CSI measurement indicated by the first information from the network device TRPBased on this, the minimum interval Z between the time-domain location of the resource where aperiodic CSI reporting is performed and the time-domain location of the resource where the DCI triggering the aperiodic CSI reporting is located can be determined, and the CSI reporting type is aperiodic reporting. Currently, joint CSI feedback corresponding to multiple reference signal resources has not been considered with respect to a predefined value of Z, which can cause problems in that terminal devices cannot complete CSI calculation and reporting within a specified value. In this embodiment of the present application, the value of Z is related to the number of reference signal resources. This can ensure that terminal devices can complete CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0010] According to the method of the first or second embodiment, in possible embodiments, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRP Having a correspondence with a group of values, One or more of the following conditions must be met.

[0011] According to the first or second embodiment of the method, in possible embodiments, the method further includes a terminal device transmitting first capability information to a network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0012] According to the method of the first or second embodiment, in possible embodiments, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’and at least one of the values ​​of Z and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0013] According to a third aspect, the present application provides a method for determining CSI reference resources. The method may be applied to a network device, a device within a network device (e.g., a chip, a chip system, or a circuit), or a device that can be used in conjunction with a network device. An example of the method being applied to a network device is used below for the purposes of this description. The method involves a network device determining first information, the first information being the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP This may include the fact that is a positive integer greater than or equal to 1. The network device transmits the first information to the terminal device, and the time-domain location of the CSI reference resource is determined based on the first information.

[0014] In the solution provided in this application, the network device has a number of reference signal resources N used for CSI measurement. TRP A first piece of information indicating the CSI reference resource can be transmitted to a terminal device, thereby enabling the terminal device to determine the time-domain location of the CSI reference resource based on the first piece of information, and the CSI reporting type is aperiodic reporting. Currently, joint CSI feedback for multiple reference signal resources has not been considered with respect to predefined time-domain location values ​​of the CSI reference resource, which can lead to the problem that the terminal device may not be able to complete the CSI calculation and reporting within a specified value. In this embodiment of the present application, the time-domain location value of the CSI reference resource is related to the number of reference signal resources. This can ensure that the terminal device can complete the CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0015] The implementing body of the third embodiment may be a network device, and it should be understood that the specific details of the third embodiment correspond to the details of the first embodiment. For the corresponding features of the third embodiment and the beneficial effects achieved by the third embodiment, please refer to the description of the first embodiment. To avoid repetition, detailed descriptions are appropriately omitted here.

[0016] In possible embodiments, determining the time-domain location of a CSI reference resource based on first information includes:

[0017] The time-domain location of a CSI reference resource is the reference slot interval n. ref Based on this, when the DCI that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth,

number

number

[0018] According to a fourth aspect, the present application provides a method for determining a time-domain position interval. The method may be applied to a network device, a device within a network device (e.g., a chip, a chip system, or a circuit), or a device that can be used in conjunction with a network device. An example of the method being applied to a network device is used below for the purposes of this description. The method involves a network device determining first information, the first information being the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRPThis may include the fact that is a positive integer greater than or equal to 1. The network device transmits the first information to the terminal device, and based on the first information, the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the DCI that triggers the aperiodic CSI report is located is determined.

[0019] In the solution provided in this application, the network device has a number of reference signal resources N used for CSI measurement. TRP A first piece of information indicating the number of reference signal resources can be transmitted to a terminal device, thereby enabling the terminal device to determine, based on the first piece of information, the minimum interval Z between the time-domain location of the resource where aperiodic CSI reporting is performed and the time-domain location of the resource where the DCI triggering the aperiodic CSI reporting is located, and the CSI reporting type is aperiodic reporting. Currently, joint CSI feedback corresponding to multiple reference signal resources has not been considered with respect to a predefined value of Z, which can cause the problem that the terminal device may not be able to complete the CSI calculation and reporting within a specified value. In this embodiment of the present application, the value of Z is related to the number of reference signal resources. This can ensure that the terminal device can complete the CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0020] The implementing body of the fourth embodiment may be a network device, and it should be understood that the specific details of the fourth embodiment correspond to the details of the second embodiment. For the corresponding features of the fourth embodiment and the beneficial effects achieved by the fourth embodiment, please refer to the description of the second embodiment. To avoid repetition, detailed descriptions are appropriately omitted here.

[0021] According to the method of the third or fourth aspect, in possible embodiments, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRPHaving a correspondence with a group of values, One or more of the following conditions must be met.

[0022] In a possible embodiment, according to the third or fourth aspect of the method, the method further includes a network device receiving first capability information from a terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0023] According to the method of the third or fourth aspect, in possible embodiments, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’ and at least one of the values ​​of Z and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0024] According to a fifth aspect, the present application provides a method for determining CSI reference resources. The method may be applied to a terminal device, a device within a terminal device (e.g., a chip, a chip system, or a circuit), or a device that can be used in conjunction with a terminal device. An example of the method being applied to a terminal device is used below for the purposes of this description. The method involves a terminal device receiving first information from a network device, and the first information being the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is either periodic CSI reporting or semi-permanent CSI reporting, and N TRP This may include the fact that is a positive integer greater than or equal to 1. The terminal device determines the time-domain location of the CSI reference resource based on the first information and the first capability information reported by the terminal device.

[0025] In the solution provided in this application, the terminal device has a number of reference signal resources N used for CSI measurement, indicated by first capability information reported by the terminal device and first information from the network device. TRP Based on this, the time-domain position of the CSI reference resource can be determined, and the CSI reporting type is either periodic reporting or semi-permanent reporting. Currently, the time-domain position value of the CSI reference resource is related only to the number of reference signal resources, which can cause problems in that the terminal device cannot complete the CSI calculation and reporting within a specified value. In this embodiment of the present application, the time-domain position value of the CSI reference resource is related not only to the number of reference signal resources but also to first capability information reported by the terminal device. This can ensure that the terminal device can complete the CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0026] In possible embodiments, the terminal device determines the time-domain location of a CSI reference resource based on first information and first capability information reported by the terminal device, and the terminal device determines the time-domain location of a CSI reference resource based on first parameters, where the first parameter is N TRP This includes being determined based on the value of and the first capability information reported by the terminal device.

[0027] In possible embodiments, the first parameter is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group of the first parameter and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0028] In possible embodiments, the method further includes a terminal device transmitting first capability information to a network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0029] According to a sixth aspect, the present application provides a method for determining CSI reference resources. The method may be applied to a network device, a device within a network device (e.g., a chip, a chip system, or a circuit), or a device that can be used in conjunction with a network device. An example of the method being applied to a network device is used below for the purposes of this description. The method involves a network device transmitting first information to a terminal device, the first information being the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is either periodic CSI reporting or semi-permanent CSI reporting, and N TRP This may include the case where is a positive integer greater than or equal to 1.

[0030] The network device receives first capability information from the terminal device, and the time-domain location of the CSI reference resource is determined based on the first information and the first capability information reported by the terminal device.

[0031] In the solution provided in this application, the network device has a number of reference signal resources N used for CSI measurement. TRPA first piece of information indicating the CSI reference resource may be transmitted to a terminal device, thereby enabling the terminal device to determine the time-domain location of the CSI reference resource based on the first piece of information and the first capability information reported by the terminal device, where the CSI reporting type is either periodic or semi-permanent. Currently, the time-domain location value of the CSI reference resource is related only to the number of reference signal resources, which can cause problems in which the terminal device may not be able to complete the CSI calculation and reporting within a specified value. In this embodiment of the present application, the time-domain location value of the CSI reference resource is related not only to the number of reference signal resources but also to the first capability information reported by the terminal device. This ensures that the terminal device can complete the CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0032] The implement body of the sixth embodiment may be a network device, and it should be understood that the specific details of the sixth embodiment correspond to the details of the fifth embodiment. For the corresponding features of the sixth embodiment and the beneficial effects achieved by the sixth embodiment, please refer to the description of the fifth embodiment. To avoid repetition, detailed descriptions are appropriately omitted here.

[0033] In possible embodiments, the time-domain location of the CSI reference resource is determined based on first information and first capability information reported by the terminal device, or the time-domain location of the CSI reference resource is determined based on first parameters, where the first parameter is N TRP This includes being determined based on the value of and the first capability information reported by the terminal device.

[0034] In possible embodiments, the first parameter is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The value of one or more of the parameters other than the first capability information reported by the terminal device is determined, and N TRP It has a correspondence with the value group of the first parameter and N TRPThe correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0035] In possible embodiments, the method further includes a network device receiving first capability information from a terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0036] According to the seventh aspect, one embodiment of the present application provides a communication device. The communication device may be used in a terminal device, a module within a terminal device (e.g., a chip or processor), or a logic module or software capable of performing all or part of the functions of a terminal device. The communication device has functions to perform the behavior in the method example of the first aspect or any embodiment of the first aspect, functions to perform the behavior in the method example of the second aspect or any embodiment of the second aspect, or functions to perform the behavior in the method example of the fifth aspect or any embodiment of the fifth aspect. These functions may be performed by hardware or by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions. For beneficial effects, see the descriptions of the first aspect, the second aspect, or the fifth aspect, for further details are not provided here.

[0037] According to the eighth aspect, one embodiment of the present application provides a communication device. The communication device may be used in a network device, a module within a network device (e.g., a chip or processor), or a logic module or software capable of performing all or part of the functions of a network device. The communication device has functions to perform the behavior in the method example of the third aspect or any embodiment of the third aspect, functions to perform the behavior in the method example of the fourth aspect or any embodiment of the fourth aspect, or functions to perform the behavior in the method example of the sixth aspect or any embodiment of the sixth aspect. These functions may be performed by hardware or by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions. For beneficial effects, see the descriptions in the third, fourth, or sixth aspects, for further details are not provided here.

[0038] According to the ninth aspect, a communication device is provided. The communication device may be a terminal device in the method embodiments described above, or a device within a terminal device (e.g., a chip, a chip system, or a circuit). The communication device may include a processor, memory, an input interface, and an output interface. The input interface is configured to receive information from a communication device other than the communication device. The output interface is configured to output information to a communication device other than the communication device. The processor is coupled to memory. The memory is configured to store a program or instruction. When a program or instruction is executed by the processor, the communication device is enabled to perform the method according to the first aspect or any embodiment of the first aspect, the second aspect or any embodiment of the second aspect, or the fifth aspect or any embodiment of the fifth aspect.

[0039] According to the tenth aspect, a communication device is provided. The communication device may be a network device in the method embodiments described above, or a device within a network device (e.g., a chip, a chip system, or a circuit). The communication device may include a processor, memory, an input interface, and an output interface. The input interface is configured to receive information from a communication device other than the communication device. The output interface is configured to output information to a communication device other than the communication device. The processor is coupled to memory. The memory is configured to store a program or instruction. When a program or instruction is executed by the processor, the communication device is enabled to perform the method according to the third aspect or any embodiment of the third aspect, the fourth aspect or any embodiment of the fourth aspect, or the sixth aspect or any embodiment of the sixth aspect.

[0040] According to the eleventh aspect, the present application provides a computer-readable storage medium for storing computer programs or instructions. When the computer programs or instructions are executed, a method according to the first aspect and any possible embodiment of the first aspect, the second aspect and any possible embodiment of the second aspect, the third aspect and any possible embodiment of the third aspect, the fourth aspect and any possible embodiment of the fourth aspect, the fifth aspect and any possible embodiment of the fifth aspect, or the sixth aspect and any possible embodiment of the sixth aspect is performed.

[0041] According to the twelfth aspect, the present application provides a computer program product including program instructions. When the program instructions are executed on a computer, the computer is enabled to perform methods according to the first aspect and any possible embodiment of the first aspect, the second aspect and any possible embodiment of the second aspect, the third aspect and any possible embodiment of the third aspect, the fourth aspect and any possible embodiment of the fourth aspect, the fifth aspect and any possible embodiment of the fifth aspect, or the sixth aspect and any possible embodiment of the sixth aspect.

[0042] According to the 13th aspect, the present application provides a communication device. The communication device includes a processor and may further include memory to carry out a method according to the first aspect and any possible embodiment of the first aspect, the second aspect and any possible embodiment of the second aspect, the third aspect and any possible embodiment of the third aspect, the fourth aspect and any possible embodiment of the fourth aspect, the fifth aspect and any possible embodiment of the fifth aspect, or the sixth aspect and any possible embodiment of the sixth aspect. The communication device may also be a chip system. The chip system may include a chip, or may include a chip and another discrete device.

[0043] According to the fourteenth aspect, the present application provides a communication system. The communication system includes at least one terminal device and at least one network device. When at least one terminal device and at least one network device are operating in the communication system, a method according to any one of the first to sixth aspects is performed.

[0044] To more clearly describe the embodiments of this application, the accompanying drawings used in the embodiments are briefly described below. It will be apparent to those skilled in the art that, without creative effort, further drawings can be derived based on these accompanying drawings. [Brief explanation of the drawing]

[0045] [Figure 1] This is an interaction flowchart for CSI measurement according to one embodiment of this application. [Figure 2a] This is a diagram of a network architecture according to one embodiment of the present application. [Figure 2b] This is a diagram of another network architecture according to one embodiment of the present application. [Figure 3] This is a diagram of a network element structure according to one embodiment of the present application. [Figure 4]This is an interaction diagram of a method for determining a CSI reference resource according to one embodiment of the present application. [Figure 5] This is an interaction diagram of a method for determining time-domain positional intervals according to one embodiment of the present application. [Figure 6] This is an interaction diagram of another method for determining a CSI reference resource according to one embodiment of the present application. [Figure 7] This is a diagram showing the structure of a device for determining a CSI reference resource according to one embodiment of the present application. [Figure 8] This is a diagram showing the structure of another device for determining a CSI reference resource according to one embodiment of the present application. [Figure 9] This is a diagram showing the structure of an apparatus for determining time-domain positional intervals according to one embodiment of the present application. [Figure 10] This is a diagram showing the structure of another device for determining time-domain positional intervals according to one embodiment of the present application. [Figure 11] This is a diagram showing the structure of another communication device according to one embodiment of this application. [Figure 12] This is a diagram showing the structure of a terminal device according to one embodiment of this application. [Modes for carrying out the invention]

[0046] In this application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B. In this application, "and / or" describes only the relationship between related subjects and indicates that there may be three relationships. For example, A and / or B may mean the following three cases: only A exists, both A and B exist, and only B exists. In addition, "at least one" may mean one or more, "multiple" may mean two or more, and "at least one of..." may mean the enumerated items and any combination thereof. For example, "at least one of A, B, and C" or "at least one of A, B, or C" may mean the following six cases: only A exists, only B exists, only C exists, both A and B exist, both B and C exist, both A and C exist, and all of A, B, and C exist. Terms such as "first" and "second" do not specify a number or order of execution, and do not indicate a clear distinction between them.

[0047] In this application, please note that words such as “example” or “for example” refer to examples, cases, or descriptions. No embodiment or design described as “example” or “for example” in this application should be understood as being more preferable or having more advantages than other embodiments or designs. More precisely, the use of words such as “example” or “for example” is intended to present the relevant concepts in a particular way.

[0048] In this application, “instruction” may include direct and indirect instructions, or explicit and implicit instructions. Information that is indicated by information (e.g., the instruction information described below) is called the indicated information. In a specific implementation process, there are several ways of indicating the indicated information. For example, the indicated information may be indicated directly. For example, the indicated information or an index of the indicated information may be indicated. In another example, the indicated information may be indicated indirectly by indicating other information, and there is a correlation between the other information being indicated and the indicated information. In yet another example, only a part of the indicated information may be indicated, and the other part of the indicated information is known or pre-agreed upon. In addition, certain information may be indicated using a pre-agreed (e.g., specified in a protocol) arrangement order of various pieces of information to reduce the instruction overhead to some extent.

[0049] The following is a description of the technical terms that may appear in the embodiments of this application. The terms used in the embodiments of this application are used solely to describe specific embodiments of this application and are not intended to limit this application. In the various embodiments of this application, unless otherwise specified or unless there is a logical inconsistency, the terms and / or descriptions between different embodiments are consistent and can be referenced to one another, and technical features in different embodiments can be combined on the basis of their internal logical relationships to form a new embodiment.

[0050] (1) Channel status information CSI During the process of a signal passing through a channel from the transmission end to the reception end, scattering, fading, and energy attenuation with distance can occur. Channel state information represents channel characteristics. CSI may include at least one of the following: channel quality indicator (CQI), precoding matrix indicator (PMI), CSI-RS resource indicator (CRI), synchronization signal / physical broadcast channel block (SSB) resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), L1-RSRP, and L1-SINR. This CSI information may be transmitted by a terminal device to a network device via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0051] (2)CSI measurement In fifth-generation (5G) communication systems, massive multiple-input multiple-output (massive MIMO) technology may be used to improve the system's spectral efficiency. When MIMO technology is used, network devices must transmit data to terminal devices based on the CSI (Critical Signal Indicator) fed back to the network device by the terminal device. Therefore, CSI measurement is important.

[0052] Figure 1 is an interaction flowchart of a CSI measurement according to one embodiment of the present application. As shown in Figure 1, a CSI measurement may include the following steps: 1. The network device transmits channel measurement configuration information to the terminal device to notify it of the channel measurement time and behavior. 2. The network device transmits a channel measurement signal (pilot) to the terminal device. For example, in a New Radio (NR) system, the network device may transmit a non-zero power channel state information reference signal (NZP CSI-RS) to the terminal device for downlink channel measurement, and the terminal device receives the NZP CSI-RS at a pre-configured channel measurement resource (CMR) to perform channel measurement. In addition, the network device may further configure a group of interference measurement resources (IMRs) corresponding to the CMRs for the terminal device, and the terminal device receives signals at these pre-configured IMRs to perform interference measurement. 3. The terminal device provides CSI feedback based on the signal measurement results. The terminal device obtains the CSI by calculation based on the results of measurements in the CMR and IMR, and reports the CSI to the network device. The CSI may include RI, CQI, and PMI, etc. 4. The network device transmits data based on the CSI fed back by the terminal device. For example, the network device may determine the number of streams to transmit data to the terminal device based on the RI in the CSI fed back by the terminal device, determine the modulation order and channel code rate to transmit data to the terminal device based on the CQI in the CSI fed back by the terminal device, and determine the precoding to transmit data to the terminal device based on the PMI in the CSI fed back by the terminal device.

[0053] (3) NZP CSI-RS / CSI-IM resource type NZP CSI-RS resources used for channel measurement, NZP CSI-RS resources used for interference measurement, and channel state information interference measurement (CSI-IM) resources used for interference measurement may be periodic, semi-permanent, or aperiodic. Periodic / semi-permanent / aperiodic NZP CSI-RS resources and CSI-IM resources may be configured for terminal devices using higher-layer signaling (e.g., radio resource control (RRC) signaling).

[0054] In the case of periodic NZP CSI-RS / CSI-IM resources, the terminal device receives NZP CSI-RS signals at regular intervals in the periodic NZP CSI-RS resource and measures interference at regular intervals in the periodic CSI-IM resource.

[0055] In the case of semi-persistent NZP CSI-RS / CSI-IM resources, network devices can activate and deactivate the NZP CSI-RS / CSI-IM resources. During the activation period, terminal devices receive NZP CSI-RS signals at regular intervals in the periodic NZP CSI-RS resource and measure interference at regular intervals in the periodic CSI-IM resource.

[0056] For aperiodic NZP CSI-RS / CSI-IM resources, a network device may configure an NZP CSI-RS resource set (NZP-CSI-RS-ResourceSet) for a terminal device using higher-layer signaling (e.g., RRC signaling). Each NZP CSI-RS resource set contains multiple NZP CSI-RS resources, and one slot offset is configured for each NZP CSI-RS resource set to determine the slot in which the NZP CSI-RS resources within the set are located. The network device may associate aperiodic NZP CSI-RS / CSI-IM resource set with a single aperiodic CSI report using higher-layer signaling (e.g., RRC, or RRC + medium access control control element (MAC CE)). The network side uses DCI to trigger the aperiodic CSI report. When an aperiodic CSI report is triggered, the aperiodic NZP CSI-RS / CSI-IM resource set associated with the aperiodic CSI report is also triggered. The slot corresponding to the NZP CSI-RS / CSI-IM resource set is the slot in which DCI executes the trigger plus a slot offset. For example, when the slot offset is 0, the NZP CSI-RS / CSI-IM resource set and DCI are in the same slot. For example, when the slot offset is 2, the NZP CSI-RS / CSI-IM resource set is placed in the resource two slots after the slot in which DCI executes the trigger. Aperiodic NZP CSI-RS resources within the same set have the same slot offset, and the specific symbols in which these aperiodic NZP CSI-RS resources are placed within the same slot are configured in the configuration information of each NZP CSI-RS resource; that is, aperiodic NZP CSI-RS resources within the same set are placed in the same / different symbols within the same slot.

[0057] (4) CSI reporting type There are three types of CSI reporting: periodic CSI reporting (P-CSI), semipersistent CSI reporting (SP-CSI), and aperiodic CSI reporting (AP-CSI).

[0058] Periodic CSI Reporting: Network devices configure terminal devices to perform periodic CSI reporting using higher-layer signaling (e.g., RRC signaling). After performing channel and interference measurements, the terminal device calculates the CSI and reports it at regular time intervals. In the aforementioned periodic CSI reporting, both the CMR used for measurement and the IMR used for interference measurement are periodic.

[0059] Semi-persistent CSI reporting: When a terminal device is configured to perform semi-persistent CSI reporting, the terminal device initiates CSI reporting after receiving downlink activation signaling transmitted by a network device and terminates CSI reporting after receiving downlink deactivation signaling. The terminal device performs periodic CSI measurement and reporting between two downlink signaling delivery points. The CMR and IMR used for semi-persistent CSI reporting may be periodic or semi-persistent. Semi-persistent CSI may be reported in a PUCCH resource, and the network device activates and deactivates semi-persistent CSI reporting using downlink upper-layer signaling (e.g., MAC CE signaling). Alternatively, semi-persistent CSI may be reported in a PUCCH resource, and the network device activates and deactivates semi-persistent CSI reporting using physical downlink control signaling (downlink control information, DCI).

[0060] Aperiodic CSI Reporting: The aperiodic CSI reporting and measurement process is as follows: The network device quasi-statically configures multiple CSI reporting configuration parameters for terminal devices using downlink RRC signaling and triggers one or more CSI reports using DCI. The terminal device performs CSI measurements based on the CSI reporting configuration parameters and reports the CSI measurement results using PUSCH. Both aperiodic and semi-persistent CSI measurements and reports must be triggered or activated by the network device, but it can be understood that aperiodic CSI measurements and reports do not need to be deactivated after being triggered by DCI, and the measurement and report are performed only once. The CMR and IMR used for aperiodic CSI reporting may be transmitted periodically, semi-persistently, or aperiodicly.

[0061] (5) Multi-station cooperation To improve the throughput performance of the system, multiple TRPs can serve terminal devices in a multi-station coordination manner. Multi-station coordination methods may include CJT and NCJT. In the CJT coordination method, multiple TRPs serve terminal devices simultaneously, and the transmission is transparent to the terminal devices. From the perspective of a terminal device, multiple TRPs in a coordination set can correspond to one large base station. Therefore, the terminal device needs to feed back the channel state information of all TRPs in the coordination set together to enable coherent joint transmission. Currently, CSI measurement is being extended in the industry, and CSI measurement feedback based on CJT can be implemented. For example, one CMR may include K (K≧1) NZP CSI-RS resources in one NZP CSI-RS resource set for CSI measurement, and one CSI-RS resource is associated with one TRP. All NZP CSI-RS resources have the same number of CSI-RS ports, and the number of ports for a single resource does not exceed 32. Specifically, the network device configures K NZP CSI-RS resources for the terminal device for channel measurement, and the terminal device calculates and reports the CSI for the channel measured by the K NZP CSI-RS resources based on the CJT codebook.

[0062] (6) CSI reference resource To ensure that terminal devices have sufficient time to perform CSI calculations, a specific time interval is required between CSI measurement and CSI reporting by the terminal device; therefore, a CSI reference resource is defined in the NR to guarantee the CSI calculation delay. The CSI reference resource has a corresponding time-frequency domain resource, and the time-domain position of the CSI reference resource is a slot that is not later than the slot in which the CSI report is performed. The CSI report is based on the CSI obtained by measurements in the CMR and IMR prior to the slot in which the CSI reference resource associated with the CSI report is located; that is, the CSI is obtained by measurements in the CMR and IMR of another slot prior to the slot in which the CSI reference resource is located. Alternatively, the CMR and IMR may be in the same slot as the CSI reference resource.

[0063] Please understand that the aforementioned descriptions of technical terms are merely examples. For example, the scope of the aforementioned definitions may change as technology continues to develop. This is not limited to the embodiments of this application.

[0064] The following describes, using an example, a network architecture to which one embodiment of this application may be applied.

[0065] It should be understood that the technical solutions in the embodiments of this application may be applied to various communication systems, such as long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, and worldwide interoperability for microwave access (WiMAX) systems. The technical solutions in the embodiments of this application may be further applied to other communication systems, such as public land mobile network (PLMN) systems, long-term evolution advanced (LTE-A) systems, 5G systems, NR systems, open access network (open RAN, O-RAN) systems, machine-to-machine (M2M) systems, or other future advanced communication systems. This is not limited to the embodiments of this application. The technical solutions provided in embodiments of this application may be further applied to other communication systems, provided that entities in a communication system can transmit control information and transmit (and / or receive) transport blocks, and that other entities in a communication system can receive control information and receive (and / or transmit) transport blocks.

[0066] Figure 2a is a diagram of a network architecture according to one embodiment of the present application. As shown in Figure 2a, the network architecture includes a network device and terminal devices 1 to 6. The network device transmits control information and / or transport blocks to one or more of terminal devices 1 to 6. In addition, terminal devices 4 to 6 may also form a communication system. In the communication system, terminal device 5 may transmit control information and / or transport blocks to one or both terminal devices 4 and terminal device 6.

[0067] Figure 2b is a diagram of another network architecture according to one embodiment of the present application. As shown in Figure 2b, a plurality of network devices (e.g., network device 1, network device 2, and network device 3) and a plurality of terminal devices (e.g., terminal device 1, terminal device 2, and terminal device 3) form a communication system in which the plurality of network devices (e.g., network device 1, network device 2, and network device 3) can simultaneously serve one terminal device (e.g., terminal device 2). The terminal devices may be connected to the network devices wirelessly, the terminal devices may be connected to each other, and the network devices may be connected to each other by wired or wireless means.

[0068] In embodiments of this application, a terminal device is a user-side entity configured to receive or transmit signals, such as a user device, access terminal, subscriber unit, subscriber station, mobile station, mobile console, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment. A terminal device may also be a cellular telephone, cordless telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device, another processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, or terminal device in a future advanced public land mobile network (PLMN). This is not limited to embodiments of this application.

[0069] By example, and not by limitation, in the embodiments of this application, a terminal device may be a wearable device. Wearable devices, also known as wearable intelligent devices, are a general term for wearable devices such as glasses, gloves, watches, clothing, and shoes, developed by applying wearable technology to the intelligent design of everyday wear. Wearable devices are portable devices that can be worn directly on the body or integrated into the user's clothing or accessories. Wearable devices perform powerful functions not only as hardware devices but also through software support, data exchange, and cloud interaction. Generalized wearable intelligent devices include large, full-featured devices that can perform full or partial functions without relying on a smartphone, such as smartwatches or smart glasses, and devices focused on only one type of application function that need to work with other devices such as smartphones, such as various smart bands or smart jewelry for monitoring physical signs.

[0070] In addition, in the embodiments of this application, the terminal device may also be a terminal device in an Internet of Things (IoT) system. IoT is an important part of the future development of information technology, and the main technical feature of IoT is the use of communication technology to connect things to a network in order to implement an intelligent network for interconnection between people and machines or between things. In the embodiments of this application, IoT technology can implement large-scale connectivity, deep coverage, and terminal power saving using, for example, narrow-band (NB) technology.

[0071] In addition, in the embodiments of this application, the terminal devices may also include sensors such as intelligent printers, train detectors, or gas stations, and their main functions include collecting data (for some terminal devices), receiving control information and downlink data from network devices, transmitting electromagnetic waves, and transmitting uplink data to network devices.

[0072] In embodiments of this application, a network device is an entity configured to transmit or receive signals and may be a device configured to communicate with terminal devices in a wireless network. For example, a network device may be an evolved NodeB (eNB, or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, a network device may be a relay station, access point, in-vehicle device, wearable device, network device in a 5G network, or network device in a future evolved PLMN network, etc. This is not limited to embodiments of this application. In another example, a network device may be a radio access network (RAN) node that connects terminal devices to a wireless network. Currently, some exemplary RAN nodes include base stations, next-generation gNodeB (gNB), transmission reception points (TRP), evolved NodeB (eNB), home base stations, baseband units (BBU), and access points (AP) in WiFi systems. In a network structure, network devices may include centralized unit (CU) nodes, distributed unit (DU) nodes, or RAN devices that include both CU and DU nodes. In an O-RAN system, a CU may also be called an O-CU, and a DU may also be called an O-DU.

[0073] Furthermore, Figure 3 is a diagram of a network element structure according to one embodiment of the present application. As shown in Figure 3, the terminal device may include a radio resource control (RRC) signaling interaction module, a medium access control (MAC) signaling interaction module, and a physical (PHY) signaling and data interaction module, and the network device may include an RRC signaling interaction module, a MAC signaling interaction module, and a PHY signaling and data interaction module. The RRC signaling interaction module may be configured to transmit and receive RCC signaling between the network device and the terminal device. The MAC signaling interaction module may be configured to transmit and receive MAC CE signaling between the network device and the terminal device. The PHY signaling and data interaction module may be configured to transmit and receive uplink / downlink control signaling, such as physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), PUCCH, and PUSCH, as well as uplink / downlink data, between network devices and terminal devices.

[0074] In embodiments of this application, a terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system may be any one or more types of computer operating systems that perform service processing by processes, for example, a Linux® operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software. In addition, the specific structure of the execution body of the method provided in embodiments of this application is not particularly limited in embodiments of this application, as long as a program recording the code of the method provided in embodiments of this application can be operated to perform communication according to the method provided in embodiments of this application. For example, the execution body of the method provided in embodiments of this application may be a terminal device or network device, or a functional module that can call and execute a program in a terminal device or network device.

[0075] In addition, aspects or features of this application may be implemented as methods, apparatus, or products using standard programming and / or engineering techniques. As used in this application, the term “product” includes computer programs that can be accessed from any computer-readable component, carrier, or medium. For example, computer-readable media may include, but are not limited to, magnetic storage components (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs) or digital versatile discs (DVDs)), smart cards, and flash memory components (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media configured to store information. The term “machine-readable media” may include, but are not limited to, wireless channels, as well as various other media that can store, contain, and / or carry instructions and / or data.

[0076] It should be noted that the number and types of terminal devices included in the network architectures shown in Figures 2a and 2b are merely examples. Embodiments of this application are not limited thereto. For example, more or fewer terminal devices communicating with network devices may be included. For brevity, further details are not shown in the accompanying drawings. In addition, while network devices and terminal devices are shown in the network architectures shown in Figures 2a and 2b, application scenarios are not limited to including network devices and terminal devices. For example, application scenarios may further include core network nodes or devices configured to perform virtualized network functions. This will be apparent to those skilled in the art and will not be described in detail here.

[0077] In the CJT scenario, the relatively high complexity of CSI measurement and calculation easily leads to the problem that terminal devices cannot complete CSI measurement and calculation within the given time.

[0078] One embodiment of this application provides a method for determining CSI reference resources. When the CSI reporting type is aperiodic reporting, the terminal device determines the number of reference signal resources N used for CSI measurement. TRP Based on first information from the network device, which indicates the time-domain location of the CSI reference resource, the terminal device determines the time-domain location of the CSI reference resource. When the CSI reporting type is periodic reporting or semi-persistent reporting, the terminal device uses the first capability information reported by the terminal device and the number N reference signal resources used for the CSI measurement. TRP Based on first information from a network device, the time-domain location of the CSI reference resource is determined. Currently, joint CSI feedback corresponding to multiple reference signal resources is not considered with respect to predefined time-domain location values ​​of the CSI reference resource, which can cause problems in that terminal devices cannot complete CSI calculations and reports within a specified value. The method for determining the time-domain location of a CSI reference resource in this embodiment of the present application can ensure that terminal devices can complete CSI measurements, calculations, and reports, thereby increasing the success rate of CSI reporting.

[0079] One embodiment of this application further provides a method for determining a time-domain position interval. The terminal device is a number of reference signal resources used for CSI measurement, indicated by first information from a network device, N TRPBased on this, the minimum interval Z between the time-domain location of the resource where aperiodic CSI reporting is performed and the time-domain location of the resource where the DCI triggering the aperiodic CSI reporting is located may be determined, and the CSI reporting type is aperiodic reporting. Currently, joint CSI feedback corresponding to multiple reference signal resources has not been considered with respect to a predefined value of Z, which can cause problems in that terminal devices cannot complete CSI calculation and reporting within a specified value. In this embodiment of the present application, the value of Z is related to the number of reference signal resources. This can ensure that terminal devices can complete CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0080] The following descriptions are provided separately using the embodiments described below. It should be understood that these methods can be used in combination with each other.

[0081] It should be understood that the determination of the time-domain location and time-domain location interval of CSI reference resources may change as technical solutions evolve. The technical solutions provided in this application are not limited to the processes described below. Furthermore, the scenarios described in the embodiments of this application are illustrative, and the solutions in the embodiments of this application are not limited to the described scenarios but may also be applicable to scenarios where similar problems exist.

[0082] The terminal devices in the embodiments of this application (for example, the following embodiments corresponding to Figures 4 to 6) may be terminal devices in the network architecture shown in Figures 2a and 2b. Functions performed by the terminal devices in embodiments may also be performed by devices within the terminal devices (e.g., chips, chip systems, or circuits). The network devices in embodiments may be network devices in the network architecture shown in Figures 2a and 2b. Functions performed by the network devices in embodiments may also be performed by devices within the network devices (e.g., chips, chip systems, or circuits). A consistent description is provided herein, and further details are not described again below.

[0083] The following describes a method for determining a CSI reference resource according to one embodiment of the present application. Figure 4 is an interaction diagram of the method for determining a CSI reference resource according to one embodiment of the present application. The method for determining a CSI reference resource is applicable to scenarios where the CSI reporting type is aperiodic CSI reporting. As shown in Figure 4, the method for determining a CSI reference resource may include the following steps. Step S401 is an optional step.

[0084] S401: The terminal device reports the first capability information to the network device. In response, the network device receives the first capability information from the terminal device.

[0085] The first capability information indicates the CSI measurement and computing capability of the terminal device. For example, the first capability information includes the CSI measurement and computing capability parameters of the terminal device.

[0086] S402: The network device transmits first information to the terminal device, and the first information is the number N of reference signal resources used for CSI measurement. TRPThis indicates that the terminal device receives the first piece of information from the network device.

[0087] A network device may transmit a first piece of information to a terminal device, the first piece of information being the number N of reference signal resources used for CSI measurement. TRP This indicates the number of reference signal resources N used for CSI measurement. TRP This can be directly shown. For example, N TRP = 4. Alternatively, the first piece of information is the number of reference signal resources N used for CSI measurement. TRP This may be indicated indirectly. For example, a network device may configure a specific reference signal resource for a terminal device, and the terminal device may determine the number of reference signal resources based on that specific reference signal resource.

[0088] In possible embodiments, a network device may transmit the first information directly to a terminal device, or it may transmit the first information to a terminal device by including the first information in other information. For example, a network device may transmit instruction information to a terminal device, which instructs it to perform a CSI measurement based on a CJT codebook, and the instruction information may include the first information. Optionally, the instruction information may be a higher-layer signaling CSI-ReportingConfig, which includes a higher-layer parameter codebookConfig, which includes a higher-layer parameter codebookType used to determine that the CSI-ReportingConfig performs a CSI measurement based on a CJT codebook. The CSI-ReportingConfig may further include resourcesForChannelMeasurement and csi-IM-ResourceForInterference, which are associated with the NZP CSI-RS resource set used for channel measurement and the CSI-IM resource set used for interference measurement, respectively. The NZP CSI-RS resource set is N TRP Includes NZP CSI-RS resources, N TRP This is a positive integer greater than or equal to 1, and indicates the number of NZP CSI-RS resources included in the NZP CSI-RS resource set.

[0089] S403: The terminal device determines the time-domain location of the CSI reference resource based on the first piece of information.

[0090] After receiving first information from a network device, the terminal device may determine the time-domain location of the CSI reference resource based on the first information. Based on the time-domain location of the CSI reference resource, the terminal device may determine the CSI measurement resource, perform channel and interference measurements on the CSI measurement resource based on the reference signal, and perform CSI calculations. The NZP CSI-RS resource used for channel measurements is not after the CSI reference resource, and the CSI-IM resource used for interference measurements is not after the CSI reference resource. It should be understood that "not after" includes two cases, specifically, that the slot in which the reference signal resource used for channel / interference measurements is located is before the slot in which the CSI reference resource is located, or that the slot in which the reference signal resource used for channel / interference measurements is located is the same as the slot in which the CSI reference resource is located.

[0091] To ensure that the terminal device has sufficient time to perform CSI calculations and prepare CSI reports, a specific time interval is required between CSI measurement and CSI reporting by the terminal device. Therefore, CSI reference resources may be used to determine available CSI measurement resources, thereby ensuring CSI calculation delays.

[0092] A CSI reference resource can be used to determine the time-domain resource location for CSI measurement. Generally, the time-domain resource location for CSI measurement precedes the time-domain resource of the CSI reference resource. For example, the time-domain location of the CSI reference resource is in a slot that is not after the slot in which the CSI report is performed. A terminal device can determine the time-domain resource of the CSI reference resource and then, based on the time-domain resource of the CSI reference resource, determine the time-domain resource location for CSI measurement. The CSI report is based on CSI obtained by measurements in the CMR and IMR prior to the CSI reference resource associated with the CSI report.

[0093] When the higher-layer parameter `codebookType` instructs the system to perform CSI measurements based on a CJT codebook, the `codebookType` field of an existing protocol needs to be redesigned. For example, the `codebookType` field may be set to `typeII-cjt` or `typeII-PortSelection-cjt`.

[0094] When the CSI reporting type is aperiodic reporting, the time-domain location of the CSI reference resource is the number of reference signal resources N used in the CSI measurement. TRP It is associated with N. In possible embodiments, the network device is N TRP A reference signal resource may be configured, and the terminal device may have N TRP You may select N reference signal resources from a set of N reference signal resources to perform CSI measurements and calculations, where N ≤ N TRP Therefore, N is determined by the terminal device, included in the CSI, and may be fed back to the network device. Thus, the network device does not determine the value of N when configuring the reference signal resources. In this embodiment of the present application, the time-domain position of the CSI reference resources is the number of reference signal resources N used for CSI measurement. TRP Associated with this is the time-domain location of the CSI reference resource, which is the number of reference signal resources N used in the CSI measurement. TRP It can be understood as being associated with N. TRP N reference signal resources may be configured so that the terminal device can perform CSI measurements and calculations. TRP The value of N may be further constructed to indicate that N reference signal resources are selected from a set of reference signal resources, where N ≤ N TRPIn this embodiment of the present application, the association of the time-domain location of the CSI reference resource with the number of reference signal resources used for CSI measurement can be understood as the association of the time-domain location of the CSI reference resource with the number of reference signal resources N used for CSI measurement (i.e., the number of reference signal resources configured by the network device that are permitted to be selected by the terminal device).

[0095] In conventional technology, the time-domain location of a CSI reference resource is determined by the time-domain location of the uplink resource used by the terminal device for CSI reporting, the uplink and downlink subcarrier spacing configuration parameters, and the reference slot spacing n. ref It can be decided based on this.

[0096] In this embodiment of the present application, the time-domain location of the uplink resource used for CSI reporting corresponding to the CSI reference resource is uplink slot n ’ Assuming this is the case, the time-domain location of the CSI reference resource corresponding to the CSI report is downlink slot nn ref It could be, n ref The value of N represents the number of NZP CSI-RS resources configured in the NZP CSI-RS resource set used for channel measurement. TRP It is associated with n and n ’ The following equation may be satisfied.

number

[0097]

number

[0098]

Table 1

[0099] As shown in Table 1, for example, when the subcarrier spacing for uplink transmission is 15 kHz and the subcarrier spacing for downlink transmission is 15 kHz, according to Table 1, μ DL = 0 and μ UL = 0 can be obtained. When the subcarrier spacing for uplink transmission is 15 kHz and the subcarrier spacing for downlink transmission is 30 kHz, according to Table 1, μ DL = 0 and μ UL = 1 can be obtained. For example, when the downlink subcarrier spacing is 15 kHz, μ DL = 0, and when the downlink subcarrier spacing is 30 kHz, μ DL = 1, and when the downlink subcarrier spacing is 60 kHz, μ DL = 2, and when the downlink subcarrier spacing is 120 kHz, μ DL = 3. Similarly, when the uplink subcarrier spacing is 15 kHz, μ UL = 0, and when the uplink subcarrier spacing is 30 kHz, μ UL = 1, and when the uplink subcarrier spacing is 60 kHz, μ UL = 2, and when the uplink subcarrier spacing is 120 kHz, μ UL = 3.

[0100] When the CSI reporting configuration indicates that the current CSI reporting type is aperiodic CSI reporting, and the DCI that triggers the aperiodic CSI reporting and the aperiodic CSI reporting are in the same slot, the CSI reference resource is the slot where the DCI that triggers the aperiodic CSI reporting is located. Otherwise, in other cases (for example, when the DCI that triggers the aperiodic CSI reporting and the aperiodic CSI reporting are not in the same slot), n ref teeth,

number

number

[0101] Z ’ The value N is the number of reference signal resources used for CSI measurement. TRP It is determined based on Z. ’ The value of N represents the number of NZP CSI-RS resources configured in the NZP CSI-RS resource set used for channel measurement. TRP Associated with and with units of symbol, the value of μ is a subcarrier spacing configuration parameter. Generally, the value of μ is the subcarrier spacing configuration parameter μ of the PDCCH resource carrying DCI. PDCCH , the subcarrier interval configuration parameter μ of the PUSCH resource that carries CSI reports UL , and the subcarrier spacing configuration parameter μ of aperiodic CSI-RS CSI-RS It is determined based on the following: For example, μ = min(μ PDCCH ,μ CSI-RS ,μ UL )

[0102] Z ’ The value of satisfies one or more of the following conditions: Z ’ It should be understood that the value of may be predefined to satisfy one or more of the following conditions, for example, it may be predefined in the protocol. Alternatively, Z ’ The value of may be pre-configured by the network device and communicated to terminal devices using signaling if one or more of the following conditions are met: or Z ’ The value of may be determined by the network device and terminal device through mutual negotiation via the reception and transmission of information, but is not limited to this application.

[0103] Z ’ The value and N TRP The value of satisfies the functional relationship. For example, Z ’ =Δ1+f1(N TRP ) where Δ1 is a constant greater than 0. For example, Z ’The value of (Z,Z) is in the current 3rd generation partnership project (3GPP®) TS 38.214 protocol release 17. ’ ) of Z ’ This may match the value of f1(N TRP ) and N TRP The values ​​of N are positively correlated with each other, that is, N TRP A value greater than this is f1(N TRP It indicates a value greater than ). For example,

number

number

[0104] Z ’ The value of N TRP It is positively correlated with N. TRP A value greater than Z ’ This indicates a larger value. It should be understood that the positive correlation here can include both linear and nonlinear positive correlations.

[0105] Z ’ The value and N TRP There is a correspondence between the values ​​of N, and this correspondence is as follows: TRP The values ​​are grouped into n sets, and within each set, N TRP The number of values ​​is 1 or greater, n is 2 or greater, and N in one set TRP All values ​​of are in another set of N TRP Greater than or less than all of the values. For the same set, N TRP When the values ​​of Z are different, ’The value of is the same for different sets. TRP A value greater than Z ’ It indicates a value greater than N. TRP The value and Z ’ The correspondence between the values ​​is provided using the example of μ=0, as shown in Table 2.

[0106] [Table 2]

[0107] As shown in Table 2, N TRP =1 is one group, Z ’ One group of values, for example 37, corresponds to N TRP =2 is one group, Z ’ One group of values ​​corresponds to, for example, 47, N TRP =3,4 is one group, Z ’ This corresponds to one group of values, for example, 67. The values ​​in Table 2 are merely examples for illustrative purposes, and it should be understood that other values ​​may exist. The values ​​are not limited to this embodiment of the present application. The aforementioned table provides an example of the correspondence using the example μ=0. Different correspondences may exist, but may be of the same form for other values ​​of μ.

[0108] Optionally, when a terminal device reports the first capability information to a network device, Z ’ The value of is N TRP This is determined based on the first capability information of the terminal device, Z ’ The value satisfies one or more of the following conditions.

[0109] Z ’ The value of is N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the other parameters are determined based on the first capability information. For example, Z ’ =Δ2+f2(N TRP ) where Δ2 is a constant greater than 0. For example, Z’ The value of is (Z,Z) in the 3GPP TS 38.214 protocol release 17. ’ ) of Z ’ This may match the value of f2(N TRP ) and N TRP The values ​​of N are positively correlated with each other, that is, N TRP A value greater than this is f2(N TRP It indicates a value greater than ). For example,

number

number

[0110] Optionally, Z ’ The value and N TRP The correspondence between the value groups is associated with the first capability information. For example, the CSI measurement and computing capability parameters in the first capability information of different terminal devices are N TRP Different values ​​of Z ’ Corresponds to the correspondence between different values ​​of Z ’ The corresponding values ​​are the CSI measurement and computing power parameters of the terminal device, and N TRP The value and Z ’ It may also be determined based on the correspondence between the values. For example, Table 3 is as follows:

[0111] [Table 3]

[0112] As shown in Table 3, if the CSI measurement and computing power parameters of the terminal device are 0, N TRP When = 1, Z ’ The value of N can be 37. TRP When =2,3,4, Z ’ The value of can be 46, and if the terminal device's CSI measurement and computing power parameters are 1, then N TRP When =1,2, Z ’ The value of N can be 42. TRP When =3,4, Z ’ The value of can be 59, and if the terminal device's CSI measurement and computing power parameter is 2, then N TRP When =1,2, Z ’ The value of N can be 49. TRP When =3,4, Z ’ The value of can be 61. The values ​​in Table 3 are merely examples for illustrative purposes, and it should be understood that other values ​​may also exist. The value is not limited to this embodiment of the present application.

[0113] In possible embodiments, Z ’ The value of may be determined based on first capability information of the terminal device. Specifically, the terminal device may report first capability information to indicate the terminal device's CSI computing capability. For example, the first capability information includes the terminal device's CSI measurement and computing capability parameters, and the network device determines Z based on the terminal device's CSI measurement and computing capability parameters. ’ You may also determine the value of Z. For example, Z ’ The value of is associated with the values ​​of the CSI measurement and computing power parameters reported by the terminal device. For example, each of several CSI measurement and computing power parameter values ​​corresponds to one level of CSI computing power, and therefore Z ’ It may correspond to one group of values. Z ’ The value of the terminal device is related to the CSI measurement and computing power parameters and Z ’It may be determined based on the correspondence between the values ​​of the terminal device and the CSI measurement and computing power parameters and Z. ’ The correspondence between the values ​​is provided using the example of μ=0, as shown in Table 4.

[0114] [Table 4]

[0115] As shown in Table 4, different CSI measurement and computing power parameter values ​​for terminal devices correspond to different CSI computing power. Smaller values ​​correspond to stronger CSI computing power, and therefore, the CSI measurement and computing power parameters correspond to Z and / or Z ’ Corresponds to a smaller value of . If the terminal device's CSI measurement and computing power parameters are 0, Z ’ The value of can be 37, and if the terminal device's CSI measurement and computing power parameter is 1, then Z ’ The value of can be 49, and if the terminal device's CSI measurement and computing power parameter is 2, then Z ’ The value of can be 70. The values ​​in Table 4 are merely examples for illustrative purposes, and it should be understood that other values ​​may exist. The values ​​are not limited to this embodiment of the present application. The aforementioned table provides an example of the correspondence using the example μ=0. Different correspondences may exist, but may be of the same form for other values ​​of μ.

[0116] In this embodiment, in a scenario where the CSI reporting type is aperiodic CSI reporting, the terminal device is indicated by first information from the network device, and the number of reference signal resources N used for CSI measurement is TRP Based on this, the time-domain location of the CSI reference resource can be determined. In this embodiment of the present application, the terminal device can have sufficient time to complete the CSI measurement, calculation, and reporting, thereby ensuring a success rate for the CSI report.

[0117] The following describes a method for determining time-domain position intervals according to one embodiment of the present application. It should be understood that the definitions of terms in different embodiments of the present application may refer to one another. To avoid redundant descriptions, the same terms may not be described again in different embodiments. Figure 5 is an interaction diagram of a method for determining time-domain position intervals according to one embodiment of the present application. The method for determining time-domain position intervals is applicable to scenarios where the CSI reporting type is aperiodic CSI reporting. As shown in Figure 5, the method for determining time-domain position intervals may include the following steps. Step S501 is an optional step.

[0118] S501: The terminal device reports the first capability information to the network device. In response, the network device receives the first capability information from the terminal device.

[0119] For step S501, it may be understood that you should refer to the description in step S401. Further details are not provided here.

[0120] S502: The network device transmits first information to the terminal device, and the first information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the terminal device receives the first piece of information from the network device.

[0121] For step S502, it may be understood that you should refer to the description in step S402. Further details are not provided here.

[0122] S503: Based on the first information, the terminal device determines the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the DCI that triggers the aperiodic CSI report is located.

[0123] The minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the DCI that triggers the aperiodic CSI report is located can be understood as the symbol interval between the time-domain location of the resource where the CSI report is performed and the time-domain location of the resource where the DCI that triggers the CSI report is located not being less than Z. Otherwise, the terminal device may ignore the trigger for this CSI report and will not perform the CSI report. The symbol interval here can be understood as meaning that the symbol interval between the last symbol of the PDCCH resource carrying the DCI that triggers the CSI report and the first symbol of the PUSCH resource carrying the corresponding CSI report is not less than Z.

[0124] The value of Z is the number of reference signal resources N used for CSI measurement. TRP It is determined based on the following: For example, the value of Z is the number of NZP CSI-RS resources configured in the NZP CSI-RS resource set used for channel measurement. TRP Associated with and with units of symbol, the value of μ is a subcarrier spacing configuration parameter. Generally, the value of μ is the subcarrier spacing configuration parameter μ of the PDCCH resource carrying DCI. PDCCH , the subcarrier interval configuration parameter μ of the PUSCH resource that carries CSI reports UL , and the subcarrier spacing configuration parameter μ of aperiodic CSI-RS CSI-RS It is determined based on the following: For example, μ = min(μ PDCCH ,μ CSI-RS ,μ UL )

[0125] The value of Z is the number of reference signal resources N used for CSI measurement. TRPDetermined based on, the value of Z satisfies one or more of the following. It should be understood that the fact that the value of Z satisfies one or more of the following may be predefined, for example, predefined in a protocol. Alternatively, the fact that the value of Z satisfies one or more of the following may be preconfigured by a network device and notified to the terminal device using signaling. Alternatively, the fact that the value of Z satisfies one or more of the following may be determined by the network device and the terminal device through mutual negotiation by receiving and transmitting information. This is not limited in this application.

[0126] The value of Z and N TRP The values satisfy a functional relationship. For example, Z = Δ3 + f3(N TRP ), where Δ3 is a constant greater than 0. For example, the value of Z may match the value of Z in the current 3rd generation partnership project (3GPP) TS 38.214 protocol release 17 for (Z, Z ’ ). The values of f3(N TRP ) and N TRP are positively correlated with each other, that is, a larger value of N TRP indicates a larger value of f3(N TRP ). For example,

Number

Number

[0127] The value of Z is positively correlated with N TRP For example, N TRPA larger value of indicates a larger value of Z. It should be understood that the positive correlation here can include both linear and nonlinear positive correlations.

[0128] Z-value and N TRP There is a correspondence between the values ​​of N, and this correspondence is as follows: TRP The values ​​are grouped into n sets, and within each set, N TRP The number of values ​​is 1 or greater, n is 2 or greater, and N in one set TRP All values ​​of are in another set of N TRP Greater than or less than all of the values. For the same set, N TRP When the values ​​of are different, the values ​​of Z are the same. For different sets, the N within the set TRP A value greater than N indicates a larger value of Z. For example, N TRP The correspondence between the values ​​of and Z is provided using the example of μ=0, as shown in Table 5.

[0129] [Table 5]

[0130] As shown in Table 5, N TRP =1 represents one group, corresponding to one group of Z values, for example, 40, and N TRP =2 is one group, and corresponds to one group of Z values, for example 50, and N TRP =3,4 constitutes one group, corresponding to one group of Z values, for example, 70. The values ​​in Table 5 are merely examples for illustrative purposes, and it should be understood that other values ​​may exist. The values ​​are not limited to this embodiment of the present application. The aforementioned table provides an example of the correspondence using the example μ=0. Different correspondences may exist, but may be of the same form for other values ​​of μ.

[0131] When the terminal device optionally reports the first capability information to the network device, the value of Z is N TRPBased on the first capability information of the terminal device, the value of Z is determined to satisfy one or more of the following conditions.

[0132] The value of Z is N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than are determined based on the first capability information of the terminal device. For example, Z = Δ4 + f4(N TRP ) where Δ4 is ​​a constant greater than 0. For example, the value of Z is (Z,Z) in the 3GPP TS 38.214 protocol release 17. ’ This may coincide with the value of Z in f4(N). TRP ) and N TRP The values ​​of N are positively correlated with each other, that is, N TRP A value greater than this is f4(N TRP It indicates a value greater than ). For example,

number

number

[0133] Optionally, the value of Z and N TRP The correspondence between the value groups is associated with the first capability information. For example, the CSI measurement and computing capability parameters in the first capability information of different terminal devices are N TRPThis corresponds to the correspondence between different values ​​of and different values ​​of Z, where the corresponding values ​​of Z are the CSI measurement and computing power parameters of the terminal device and N TRP It may also be determined based on the correspondence between the value of and the value of Z. For example, Table 6 is as follows:

[0134] [Table 6]

[0135] As shown in Table 6, if the CSI measurement and computing power parameters of the terminal device are 0, N TRP When = 1, the value of Z can be 40, and N TRP When =2,3,4, the value of Z can be 51, and if the terminal device's CSI measurement and computing power parameters are 1, then N TRP When =1,2, the value of Z can be 45, and N TRP When =3,4, the value of Z can be 62, and if the terminal device's CSI measurement and computing power parameter is 2, then N TRP When =1,2, the value of Z can be 53, and N TRP When =3,4, the value of Z may be 74. The values ​​in Table 6 are merely examples for illustrative purposes, and it should be understood that other values ​​may also exist. The values ​​are not limited to this embodiment of the present application.

[0136] In possible embodiments, the value of Z may be determined based on first capability information of the terminal device. Specifically, the terminal device may report first capability information to indicate the terminal device's CSI computing capability. For example, the first capability information may include CSI measurement and computing capability parameters of the terminal device, and the network device may determine the value of Z based on the terminal device's CSI measurement and computing capability parameters. For example, the value of Z is associated with the values ​​of the CSI measurement and computing capability parameters reported by the terminal device. For example, each of several CSI measurement and computing capability parameter values ​​may correspond to one level of CSI computing capability and therefore to one group of Z values. The value of Z may also be determined based on a correspondence between the terminal device's CSI measurement and computing capability parameters and the Z value. For example, the correspondence between the terminal device's CSI measurement and computing capability parameters and the Z value is provided using the example μ=0, as shown in Table 7.

[0137] [Table 7]

[0138] As shown in Table 7, different CSI measurement and computing power parameter values ​​for the terminal device correspond to different CSI computing power. Smaller values ​​correspond to stronger CSI computing power, and therefore, the CSI measurement and computing power parameters correspond to smaller values ​​of Z. If the CSI measurement and computing power parameters of the terminal device are 0, the value of Z may be 40; if the CSI measurement and computing power parameters of the terminal device are 1, the value of Z may be 52; and if the CSI measurement and computing power parameters of the terminal device are 2, the value of Z may be 73. The values ​​in Table 7 are merely examples for illustrative purposes, and it should be understood that other values ​​may exist. The values ​​are not limited to this embodiment of the present application. The aforementioned table provides an example of the correspondence using the example of μ=0. Different correspondences may exist but may be in the same form for other values ​​of μ.

[0139] In this embodiment, in a scenario where the CSI reporting type is an aperiodic CSI report, the terminal device determines the number N of reference signal resources used for CSI measurement indicated by the first information from the network device. TRP Based on this, the terminal device may determine the minimum interval Z between the time domain position of the resource for which the aperiodic CSI report is performed and the time domain position of the resource where the DCI triggering the aperiodic CSI report is located. In this embodiment of the present application, the terminal device can have sufficient time to complete CSI measurement, calculation, and reporting, and as a result, the success rate of the CSI report is guaranteed.

[0140] The following describes another method for determining CSI reference resources according to an embodiment of the present application. It should be understood that the explanations of terms in different embodiments of the present application may refer to each other. To avoid redundant descriptions, the same terms may not be described again in different embodiments. FIG. 6 is an interaction diagram of another method for determining CSI reference resources according to an embodiment of the present application. The method for determining CSI reference resources is applicable to scenarios where the CSI reporting type is a periodic CSI report or a semi-persistent CSI report. As shown in FIG. 6, the method for determining CSI reference resources may include the following steps.

[0141] S601: The terminal device reports the first capability information to the network device. Correspondingly, the network device receives the first capability information from the terminal device.

[0142] Regarding step S601, it can be understood by referring to the description of step S401. Details are not described again here.

[0143] S602: The network device transmits the first information to the terminal device, and the first information indicates the number N of reference signal resources used for CSI measurement. TRP Correspondingly, the terminal device receives the first information from the network device.

[0144] For step S602, it may be understood that you should refer to the description in step S402. Further details are not provided here.

[0145] S603: The terminal device determines the time-domain location of the CSI reference resource based on the first information and the first capability information.

[0146] For relevant descriptions of CSI reference resources in step S603, it may be understood that you should refer to the aforementioned description in step S403. Further details are not provided here.

[0147] In addition, the higher-level parameter codebookType instructs the system to perform CSI measurements based on the CJT codebook, and when the CSI reporting type is periodic or semi-permanent, the time-domain location of the CSI reference resource is the number of reference signal resources N used for the CSI measurement. TRP and associated with the first capability information reported by the terminal device. Number of reference signal resources in step S603 N TRP For related information, please refer to the description in step S403. Further details are not provided here.

[0148] In conventional technology, the process for determining the time-domain location of a CSI reference resource may be as follows, where the time-domain location of the CSI reference resource is determined based on the time-domain location of the uplink resource used by the terminal device for CSI reporting, the uplink and downlink subcarrier spacing configuration parameters, and a first parameter.

[0149] The time domain location of the uplink resource used for CSI reporting corresponding to the CSI reference resource is uplink slot n ’ Assuming this is the case, the time-domain location of the reference resource corresponding to the CSI report is downlink slot nn ref It could be, n refThe value of N represents the number of NZP CSI-RS resources configured in the NZP CSI-RS resource set used for channel measurement. TRP It can be associated with n and n ’ The following equation may be satisfied.

number

[0150] μ DL and μ UL These are determined separately by a parameter set (numerology) configured on the network device side, and represent the uplink and downlink subcarrier spacing configuration parameters, respectively, μ DL The value of μ is related to the subcarrier spacing corresponding to downlink transmission. UL The value of relates to the subcarrier spacing for uplink transmission. For example, see the corresponding description in Table 1 for details. The subcarrier spacing for downlink transmission may be the same as or different from the subcarrier spacing for uplink transmission.

[0151] n ref This is associated with the CSI reporting type, and the CSI reporting configuration information indicates that the current CSI reporting type is either periodic CSI reporting or semi-permanent CSI reporting.

[0152] In possible embodiments, n ref , nn ref So that it is a valid downlink slot,

number

[0153] The first parameter f5(N TRP ) is N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the other parameters are determined based on the first capability information reported by the terminal device. For example,

number

number

[0154] The first parameter f5(N TRP ) and N TRP The values ​​of N are positively correlated with each other, for example, N TRP A larger value of the first parameter f5(N TRP This indicates a value greater than ). It should be understood that the positive correlation here can include both linear and nonlinear positive correlations.

[0155] The first parameter f5(N TRP The value of ) may be determined based on first capability information of the terminal device. Specifically, the terminal device may report first capability information to indicate the terminal device's CSI computing capability. For example, the first capability information includes the terminal device's CSI measurement and computing capability parameters, and the network device determines the first parameter f5(N) based on the terminal device's CSI measurement and computing capability parameters. TRP The value of the first parameter f5(N) may be determined. For example, the first parameter f5(N) TRP The value of ) varies depending on the terminal device. The CSI measurement and computing power parameter values ​​of each terminal device in the CSI measurement and computing power parameter values ​​of multiple terminal devices are determined by the first parameter f5(N TRP It may also correspond to one group of values ​​of ). The first parameter f5(N TRP The value of ) is the CSI measurement and computing power parameter of the terminal device and the first parameter f5(N TRPIt may also be determined based on the correspondence between the values ​​of ). For example, Table 8 is as follows:

[0156] [Table 8]

[0157] As shown in Table 8, if the CSI measurement and computing power parameters of the terminal device are 0, the first parameter f5(N TRP The value of ) can be 5, and if the terminal device's CSI measurement and computing power parameter is 1, the first parameter f5(N TRP The value of ) can be 7, and if the CSI measurement and computing power parameter of the terminal device is 2, the first parameter f5(N TRP The value of ) may be 10. The values ​​in Table 8 are merely examples for illustrative purposes, and it should be understood that other values ​​may also exist. The value is not limited to this embodiment of the present application.

[0158] The first parameter f5(N TRP The value of N TRP The correspondence between the values ​​may vary depending on the CSI measurement and computing power parameters in the first capability information reported by the terminal device. For example, Table 9 is as follows:

[0159] [Table 9]

[0160] As shown in Table 9, if the CSI measurement and computing power parameters of the terminal device are 0, N TRP When = 1, the first parameter f5(N TRP The value of ) can be 3, N TRP When =2, the first parameter f5(N TRP The value of ) can be 5, N TRP When =3,4, the first parameter f5(N TRP The value of ) can be 8, and if the terminal device's CSI measurement and computing power parameter is 1, then NTRP When = 1, the first parameter f5(N TRP The value of ) can be 4, N TRP When =2, the first parameter f5(N TRP The value of ) can be 6, N TRP When =3,4, the first parameter f5(N TRP The value of ) can be 10, and if the terminal device's CSI measurement and computing power parameter is 2, then N TRP When = 1, the first parameter f5(N TRP The value of ) can be 5, N TRP When =2, the first parameter f5(N TRP The value of ) can be 9, N TRP When =3,4, the first parameter f5(N TRP The value of ) may be 12. The values ​​in Table 9 are merely examples for illustrative purposes, and it should be understood that other values ​​may also exist. The values ​​are not limited to this embodiment of the present application.

[0161] The first parameter mentioned above is, for example, f5(N TRP It may be understood that this is merely a description using ). Alternatively, the first parameter may be N, or may be expressed in another form. This is not limited to this embodiment of the present application. In addition, the rounding symbols in the functional relations provided above are merely examples for description purposes, and the rounding symbols may be round up or round down. This is not limited to the present application.

[0162] Optionally, the method may further include step S403: The terminal device determines a CSI measurement resource based on its configuration and performs channel measurement and interference measurement on the CSI measurement resource.

[0163] Optionally, the method may further include step S404: The terminal device determines a CSI reporting resource based on the first information, generates a CSI based on channel measurements and interference measurements, and reports the CSI to the network device at the CSI reporting resource.

[0164] In this embodiment, in a scenario where the CSI reporting type is periodic CSI reporting or semi-persistent CSI reporting, the terminal device may determine the time-domain location of the CSI reference resource based on first information from the network device, the time-domain location of the CSI reference resource is associated with the number of reference signal resources used for CSI measurement and first capability information reported by the terminal device. ref The value may be related not only to the number of reference signal resources but also to the first capability information reported by the terminal device. This can ensure that the terminal device can complete CSI measurement, calculation, and reporting, thereby increasing the success rate of CSI reporting.

[0165] The preceding section describes the method embodiment provided in the embodiments of this application. The following section describes the apparatus embodiment in the embodiments of this application.

[0166] Figure 7 shows the structure of an apparatus for determining a CSI reference resource according to one embodiment of the present application. The apparatus may be a terminal device or an apparatus within a terminal device (e.g., a chip, a chip system, or a circuit). As shown in Figure 7, the apparatus 700 includes at least a transceiver unit 701 and a processing unit 702.

[0167] In possible embodiments, The transceiver unit 701 receives first information from a network device, and the first information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1, The processing unit 702 is configured to determine the time domain location of the CSI reference resource based on the first information.

[0168] In one embodiment, when determining the time domain location of the CSI reference resource based on the first information, the processing unit 702, Reference slot interval n ref Based on this, the time-domain location of the CSI reference resource is determined, and when the downlink control information DCI that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth,

number

number

[0169] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRP Having a correspondence with a group of values, One or more of the following conditions must be met.

[0170] In one embodiment, the transceiver unit 701 is further configured to transmit first capability information to a network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0171] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’ and at least one of the values ​​of Z and NTRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0172] In another possible embodiment, The transceiver unit 701 receives first information from a network device, and the first information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is either periodic CSI reporting or semi-permanent CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1, The processing unit 702 is configured to determine the time-domain location of the CSI reference resource based on the first information and the first capability information reported by the terminal device.

[0173] In one embodiment, when determining the time-domain location of a CSI reference resource based on first information and first capability information reported by a terminal device, the processing unit 702 determines the time-domain location of the CSI reference resource based on a first parameter, where the first parameter is N TRP It is specifically configured to be determined based on the value of and the first capability information reported by the terminal device.

[0174] In one embodiment, the first parameter is as follows: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group of the first parameter and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0175] In one embodiment, the transceiver unit 701 is further configured to transmit first capability information to a network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0176] For a more detailed description of the transceiver unit 701 and the processing unit 702, please refer directly to the relevant descriptions of the terminal devices in the aforementioned method embodiment shown in Figures 4 and 6. Further details are not provided here.

[0177] Figure 8 shows the structure of another apparatus for determining a CSI reference resource according to one embodiment of the present application. The communication device may be a network device or a device within a network device (e.g., a chip, a chip system, or a circuit). As shown in Figure 8, the apparatus 800 for determining a CSI reference resource includes at least a processing unit 801 and a transceiver unit 802.

[0178] In possible embodiments, The processing unit 801 determines the first piece of information, which is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1, The transceiver unit 802 is configured to transmit first information to a terminal device, and the time-domain location of the CSI reference resource is determined based on the first information.

[0179] In one embodiment, determining the time-domain location of a CSI reference resource based on first information includes the following:

[0180] The time-domain location of a CSI reference resource is the reference slot interval n. ref Based on this, when the downlink control information DCI that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth,

number

number

[0181] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRP Having a correspondence with a group of values, One or more of the following conditions must be met.

[0182] In one embodiment, the transceiver unit 802 is further configured to receive first capability information from a terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0183] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’ and at least one of the values ​​of Z and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0184] In another possible embodiment, The transceiver unit 802 transmits first information to the terminal device, and the first information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is either periodic CSI reporting or semi-permanent CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1, The transceiver unit 802 is further configured to receive first capability information from a terminal device, and the time-domain location of the CSI reference resource is determined based on the first information and the first capability information reported by the terminal device.

[0185] In one embodiment, the time-domain location of the CSI reference resource is determined based on first information and first capability information reported by the terminal device, or the time-domain location of the CSI reference resource is determined based on a first parameter, where the first parameter is N TRP This includes being determined based on the value of and the first capability information reported by the terminal device.

[0186] In one embodiment, the first parameter is as follows: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The value of one or more of the parameters other than the first capability information reported by the terminal device is determined, and N TRP It has a correspondence with the value group of the first parameter and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0187] In one embodiment, the transceiver unit 802 is further configured to receive first capability information from a terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0188] For a more detailed description of the processing unit 801 and the transceiver unit 802, please refer directly to the relevant descriptions of the network devices in the aforementioned method embodiments shown in Figures 4 and 6. Further details are not provided here.

[0189] Figure 9 shows the structure of an apparatus for determining time-domain position intervals according to one embodiment of the present application. The apparatus may be a terminal device or an apparatus within a terminal device (e.g., a chip, a chip system, or a circuit). As shown in Figure 9, the apparatus 900 for determining time-domain position intervals includes at least a transceiver unit 901 and a processing unit 902.

[0190] The transceiver unit 901 receives first information from a network device, and the first information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1.

[0191] The processing unit 902 is configured to determine, based on the first information, the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the DCI that triggers the aperiodic CSI report is located.

[0192] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRP Having a correspondence with a group of values, One or more of the following conditions must be met.

[0193] In one embodiment, the transceiver unit 901 is further configured to transmit first capability information to a network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0194] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’ and at least one of the values ​​of Z and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0195] For a more detailed description of the transceiver unit 901 and the processing unit 902, please refer directly to the relevant description of the terminal devices in the aforementioned method embodiment shown in Figure 5. Further details are not provided here.

[0196] Figure 10 shows the structure of another apparatus for determining time-domain position intervals according to one embodiment of the present application. The communication device may be a network device or a device within a network device (e.g., a chip, a chip system, or a circuit). As shown in Figure 10, the apparatus 1000 for determining time-domain position intervals includes at least a processing unit 1001 and a transceiver unit 1002.

[0197] The processing unit 1001 determines the first piece of information, which is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP It is constructed such that is a positive integer greater than or equal to 1.

[0198] The transceiver unit 1002 is configured to transmit first information to a terminal device so that the minimum interval Z between the time-domain location of the resource where aperiodic CSI reporting is performed and the time-domain location of the resource where the DCI that triggers the aperiodic CSI reporting is located is determined based on the first information.

[0199] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the value of, and N TRP Having a correspondence with a group of values, One or more of the following conditions must be met.

[0200] In one embodiment, the transceiver unit 1002 is further configured to receive first capability information from a terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

[0201] In one embodiment, Z ’ The value of at least one of the following, Z, is: N TRP The functional relationship with the value of satisfies, and the functional relationship N TRP The values ​​of one or more of the parameters other than the first capability information are determined based on the first capability information, and N TRP It has a correspondence with the value group, Z ’ and at least one of the values ​​of Z and N TRP The correspondence between the values ​​is associated with the first capability information. One or more of the following conditions must be met.

[0202] For a more detailed description of the processing unit 1001 and the transceiver unit 1002, please refer directly to the relevant description of the network devices in the aforementioned method embodiment shown in Figure 5. Further details are not provided here.

[0203] Figure 11 is a diagram showing the structure of another communication device according to one embodiment of the present application. As shown in Figure 11, the device 1100 may include one or more processors 1101, each processor 1101 also called a processing unit, which may perform specific control functions. The processors 1101 may be general-purpose processors or dedicated processors, etc. For example, the processor 1101 may be a baseband processor or a central processing unit. The baseband processor may be configured to process communication protocols and communication data. The central processing unit may be configured to control communication devices (e.g., base stations, baseband chips, terminals, terminal chips, DUs, or CUs), execute software programs, and process data from the software programs.

[0204] In an optional design, the processor 1101 may also store instructions 1103 and / or data, which may be operated by the processor to enable the device 1100 to perform the method described in the above-described embodiment.

[0205] In another optional design, the processor 1101 may include a transceiver unit configured to perform receive and transmit functions. For example, the transceiver unit may be a transceiver circuit, interface, interface circuit, or communication interface. The transceiver circuit, interface, or interface circuit configured to perform receive and transmit functions may be separate or integrated together. The transceiver circuit, interface, or interface circuit may be configured to read and write code / data. Alternatively, the transceiver circuit, interface, or interface circuit may be configured to perform signal transmission or forwarding.

[0206] In yet another possible design, the device 1100 may include a circuit that can perform the transmission, reception, or communication functions described in the method embodiments above.

[0207] Optionally, the device 1100 may include one or more memories 1102. The memories 1102 may store instructions 1104 and / or data, which may operate on the processor to enable the device 1100 to perform the method described in the preceding method embodiment. Optionally, the memory may store further data. Optionally, the processor may also store instructions and / or data. The processor and memory may be located separately or integrated together. For example, the correspondences described in the preceding method embodiment may be stored in memory or in the processor.

[0208] Optionally, the device 1100 may further include a transceiver 1105 and / or an antenna 1106. A processor 1101 may be called a processing unit and may control the device 1100. The transceiver 1105 may be called a transceiver unit, transceiver machine, transceiver circuit, transceiver device, or transceiver module, and may be configured to perform transceiver functions.

[0209] Optionally, the apparatus 1100 in this embodiment of the present application may be configured to perform the method described in Figures 4 to 6 of the embodiment of the present application.

[0210] In one embodiment, the communication device 1100 may be a terminal device or a device within a terminal device (e.g., a chip, a chip system, or a circuit). When a computer program instruction stored in memory 1102 is executed, the processor 1101 is configured to perform an operation performed by the processing unit 702 in the aforementioned embodiment, or an operation performed by the processing unit 902 in the aforementioned embodiment; the transceiver 1105 is configured to perform an operation performed by the transceiver unit 701 in the aforementioned embodiment, or an operation performed by the transceiver unit 901 in the aforementioned embodiment; and the transceiver 1105 is further configured to transmit information to a communication device other than the communication device. The terminal device or a device within a terminal device may be further configured to perform various methods performed by the terminal device in the method embodiments of Figures 4 to 6. Further details are not described again.

[0211] In one embodiment, the communication device 1100 may be a network device or a device within a network device (e.g., a chip, a chip system, or a circuit). When a computer program instruction stored in memory 1102 is executed, the processor 1101 is configured to perform an operation performed by the processing unit 801 in the aforementioned embodiment, or an operation performed by the processing unit 1001 in the aforementioned embodiment; the transceiver 1105 is configured to perform an operation performed by the transceiver unit 802 in the aforementioned embodiment, or an operation performed by the transceiver unit 1002 in the aforementioned embodiment; and the transceiver 1105 is further configured to receive information from a communication device other than the communication device. The network device or a device within a network device may be further configured to perform various methods performed by the network device in the method embodiments of Figures 4 to 6. Further details are not described again.

[0212] The processors and transceivers described in this application may be implemented in integrated circuits (ICs), analog ICs, radio frequency interface chips (RFICs), hybrid signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), or electronic devices. The processors and transceivers may also be manufactured using various IC technologies, such as complementary metal oxide semiconductors (CMOS), n-channel metal oxide semiconductors (nMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), and gallium arsenide (GaAs).

[0213] The apparatus described in the above-described embodiments may be a first communication device or a second communication device. However, the scope of the apparatus described in this application is not limited thereto, and the structure of the apparatus is not limited to Figure 11. The apparatus may be an independent device or part of a larger device. For example, the apparatus may be: (1) An independent integrated circuit IC, chip, or chip system or subsystem, (2) A set having one or more ICs, wherein the IC set may optionally also include a storage component configured to store data and / or instructions, (3) ASICs such as modems (mobile station modems, MSMs) (4) Modules that can be incorporated into another device, (5) Receivers, terminals, intelligent terminals, cellular phones, wireless devices, handheld devices, mobile units, automotive devices, network devices, cloud devices, artificial intelligence devices, machine devices, home devices, medical devices, or industrial devices, etc. (6) Others That's fine.

[0214] Figure 12 is a diagram illustrating the structure of a terminal device according to one embodiment of the present application. For ease of description, Figure 12 shows only the main components of the terminal device. As shown in Figure 12, the terminal device 1200 includes a processor, memory, control circuitry, antenna, and input / output device. The processor is primarily configured to process communication protocols and communication data, control the entire terminal, execute software programs, and process data for the software programs. The memory is primarily configured to store software programs and data. The radio frequency circuitry is primarily configured to perform conversions between baseband signals and radio frequency signals and to process radio frequency signals. The antenna is primarily configured to receive and transmit radio frequency signals in the form of electromagnetic waves. An input / output device, such as a touchscreen, display, or keyboard, is primarily configured to receive data entered by the user and output data to the user.

[0215] After the terminal is powered on, the processor can read the software program in the memory unit, interpret and execute the software program's instructions, and process the software program's data. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit processes the baseband signal to obtain a radio frequency signal and transmits it externally in the form of electromagnetic waves via the antenna. When data is transmitted to the terminal, the radio frequency circuit receives the radio frequency signal via the antenna, further converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0216] For the sake of clarity, Figure 12 shows only one memory and one processor. In a real terminal, there may be multiple processors and memories. Memory may also be called a storage medium or storage device, etc. This is not limited to the embodiments of this application.

[0217] In an optional embodiment, the processor may include a baseband processor and a central processing unit. The baseband processor is primarily configured to process communication protocols and communication data, and the central processing unit is primarily configured to control the entire terminal, execute software programs, and process data from the software programs. The processor in Figure 12 integrates the functions of a baseband processor and a central processing unit. Those skilled in the art will understand that the baseband processor and the central processing unit may be independent processors and interconnected by technologies such as buses. Those skilled in the art will understand that a terminal may include multiple baseband processors to adapt to different network standards, a terminal may include multiple central processing units to extend the processing capabilities of the terminal, and all components of the terminal may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The central processing unit may also be referred to as a central processing circuit or a central processing chip. The functions for processing communication protocols and communication data may be built into the processor or stored in a storage unit in the form of software programs, and the processor executes software programs to perform the baseband processing functions.

[0218] For example, an antenna and control circuit having transceiver functionality may be considered a transceiver unit 1201 of the terminal device 1200, and a processor having processing functionality may be considered a processing unit 1202 of the terminal device 1200. As shown in Figure 12, the terminal device 1200 includes a transceiver unit 1201 and a processing unit 1202. The transceiver unit may also be called a transceiver, transceiver machine, or transceiver device. Optionally, components within the transceiver unit 1201 configured to perform receiving functionality may be considered a receiving unit, and components within the transceiver unit 1201 configured to perform transmitting functionality may be considered a transmitting unit. In other words, the transceiver unit 1201 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be called a receiver, receiver machine, or receiver circuit, and the transmitting unit may also be called a transmitter, transmitter machine, or transmitter circuit. Optionally, the receiving unit and the transmitting unit may be a single integrated unit or multiple separate units. The receiving unit and the transmitting unit may be located in one geographical location or may be distributed across multiple geographical locations.

[0219] In one embodiment, the processing unit 1202 is configured to perform an operation performed by the processing unit 702 in the aforementioned embodiment, or an operation performed by the processing unit 902 in the aforementioned embodiment, and the transceiver unit 1201 is configured to perform an operation performed by the transceiver unit 701 in the aforementioned embodiment, or an operation performed by the transceiver unit 901 in the aforementioned embodiment. The terminal device 1200 may be further configured to perform various methods performed by the terminal device in the method embodiments of Figures 4 to 6. Further details are not described again.

[0220] One embodiment of this application further provides a computer-readable storage medium for storing a computer program. When the program is executed by a processor, procedures related to a terminal device can be performed in the manner provided in the above-described embodiment.

[0221] One embodiment of this application further provides a computer-readable storage medium for storing computer programs. When the program is executed by a processor, procedures related to network devices can be performed in the manner provided in the above-described embodiment.

[0222] One embodiment of this application further provides a computer program product. When the computer program product operates on a computer or processor, the computer or processor is enabled to perform one or more steps in any one of the methods described above. When the aforementioned module in a device is implemented in the form of a software function unit and sold or used as an independent product, the module may be stored in a computer-readable storage medium.

[0223] One embodiment of this application further provides a chip system including at least one processor and a communication interface. The communication interface and the at least one processor are interconnected via wiring, and the at least one processor is configured to operate a computer program or instructions to perform some or all of the steps recorded in any one of the method embodiments corresponding to Figures 4 to 6. The chip system may include a chip, or it may include a chip and another discrete device.

[0224] One embodiment of this application further discloses a communication system, which includes terminal devices and network devices. For specific details, please refer to the method shown in Figures 4 to 6.

[0225] It should be understood that the memory referred to in the embodiments of this application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be hard disk drive (HDD), solid-state drive (SSD), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) and may be used as an external cache. Many forms of RAM may be used, not as an example but as an example, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchlink dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus random access memory (direct rambus RAM, DR RAM). Memory is any other medium accessible by a computer that can hold or store the appropriate program code in the form of instructions or data structures, but is not limited thereto. Memory in embodiments of this application may also be a circuit or any other device capable of performing a storage function and configured to store program instructions and / or data.

[0226] It should be further understood that the processor referred to in the embodiments of this application may be a central processing unit (CPU), or another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor.

[0227] Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) is integrated into the processor.

[0228] Please note that the memories described herein are intended to include, but are not limited to, these memories and other suitable types of memories.

[0229] It should be understood that the sequential numbering of the processes described above does not imply the order of execution in the various embodiments of this application. The order of execution of the processes should be determined according to the function and internal logic of the processes and should not be interpreted as a limitation on the implementation processes of the embodiments of this application.

[0230] Those skilled in the art will recognize that the units and algorithmic steps in the examples described with reference to the embodiments provided herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for specific applications, but such implementation should not be considered to exceed the scope of this application.

[0231] For the sake of brevity, it will be readily apparent to those skilled in the art that the detailed operating processes of the aforementioned systems, apparatus, and units are described by referring to the corresponding processes in the method embodiments described above. Further details are not provided here.

[0232] In some embodiments provided in this application, it should be understood that the disclosed systems, apparatus, and methods may be implemented in other ways. For example, the described apparatus embodiments are merely illustrative. For example, the division into units is merely a division of logical functions, and other divisions may be used in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the presented or described mutual coupling or direct coupling or communication connection may be implemented using several interfaces. Indirect coupling or communication connection between apparatus or units may be implemented electronically, mechanically, or in other forms.

[0233] Units described as separate parts may or may not be physically separate, and parts presented 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 the units may be selected based on the actual requirements in order to achieve the objectives of the solutions of the embodiments.

[0234] In addition, the functional units in the embodiments of this application may be integrated into a single processing unit, or each unit may exist physically independently, or two or more units may be integrated into a single unit.

[0235] When a function is implemented in the form of a software function unit and sold or used as an independent product, the function may be stored on a computer-readable storage medium. Based on this understanding, the technical solution of this application may be implemented in the form of a software product, either in essence, in part with respect to the prior art, or in part with respect to the technical solution. A computer software product is stored on a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in the embodiments of this application. The aforementioned storage medium includes any medium capable of storing program code, such as a USB flash drive, removable hard disk, ROM, RAM, magnetic disk, or optical disk.

[0236] The order of steps in the embodiments of this application may be adjusted, combined, or omitted based on actual requirements.

[0237] Modules / units within the apparatus in the embodiments of this application may be combined, separated, or removed based on actual requirements.

[0238] Finally, the embodiments described above are for the purpose of illustrating the technical solutions of this application and are not intended to limit this application. Although this application is described in detail with reference to the embodiments described above, those skilled in the art will understand that further modifications may be made to the technical solutions described above, or equivalent substitutions of some of the technical features thereof, without departing from the scope of the technical solutions of the embodiments of this application. [Explanation of symbols]

[0239] 700 equipment 701 Transceiver Unit 702 Processing Unit 800 equipment 801 Processing Unit 802 Transceiver Unit 900 equipment 901 Transceiver Unit 902 Processing Unit 1000 devices 1001 Processing Unit 1002 Transceiver Unit 1100 equipment 1101 Processor 1102 memory 1103 Command 1104 Instructions 1105 Transceiver 1106 Antenna 1200 terminal devices 1201 Transceiver Unit 1202 Processing Unit

Claims

1. A method for determining a channel status information (CSI) reference resource, A terminal device receives first information from a network device, wherein the first information is the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP Step is a positive integer greater than or equal to 1, and The terminal device determines the time domain location of the CSI reference resource based on the first information. Methods that include...

2. A method for determining the time domain positional interval, A terminal device receives first information from a network device, wherein the first information is the number N of reference signal resources used for channel status information (CSI) measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP Step is a positive integer greater than or equal to 1, and The terminal device performs the following steps based on the first information: determining the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the downlink control information (DCI) that triggers the aperiodic CSI report is located; Methods that include...

3. The step of determining the time domain location of the CSI reference resource based on the first information using the terminal device is: The aforementioned terminal device provides a reference slot interval n ref A step of determining the time-domain location of the CSI reference resource based on the following: when the downlink control information (DCI) that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth, [Math 1] The smallest positive integer greater than or equal to the above, [Math 2] This represents the number of symbols contained in one slot, Z ’ The value of is N TRP The steps determined based on The method according to claim 1, including the method described in claim 1.

4. Z ’ and at least one of the values of Z is N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the aforementioned value, and N TRP Having a correspondence with a group of values, The method according to claim 2 or 3, which satisfies one or more of the following conditions.

5. A step of transmitting first capability information from the terminal device to the network device, wherein the first capability information indicates the CSI measurement and computing capabilities of the terminal device. The method according to claim 2 or 3, further comprising:

6. Z ’ And at least one of the values ​​of Z is N TRP The functional relationship with the value of N in the said functional relationship is satisfied. TRP The values ​​of one or more of the parameters other than those mentioned above are determined based on the first capability information, and N TRP Having a correspondence with the value group, Z ’ and at least one of the above values ​​of Z and N TRP The correspondence between the aforementioned value and the aforementioned value is associated with the first capability information, The method according to claim 5, which satisfies one or more of the following conditions.

7. A method for determining a channel status information (CSI) reference resource, A step in which a network device determines first information, wherein the first information is the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP Step is a positive integer greater than or equal to 1, and A step of transmitting the first information to a terminal device via the network device, wherein the time domain location of the CSI reference resource is determined based on the first information. Methods that include...

8. A method for determining the time domain positional interval, A step in which a network device determines first information, wherein the first information is the number of reference signal resources N used for channel status information (CSI) measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP Step is a positive integer greater than or equal to 1, and The steps include: transmitting the first information to a terminal device via the network device, wherein the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the downlink control information (DCI) that triggers the aperiodic CSI report is located is determined based on the first information; Methods that include...

9. The time domain location of the CSI reference resource is determined based on the first information. The time domain position of the CSI reference resource is at the reference slot interval n ref This is determined based on the fact that when the downlink control information (DCI) that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth, [Math 3] The smallest positive integer greater than or equal to the above, [Math 4] This represents the number of symbols contained in one slot, Z ’ The value of is N TRP It is determined based on The method according to claim 7, including the method described in claim 7.

10. Z ’ And at least one of the values ​​of Z is N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the aforementioned value, and N TRP Having a correspondence with a group of values, The method according to claim 8 or 9, which satisfies one or more of the following conditions.

11. A step of receiving first capability information from the terminal device via the network device, wherein the first capability information indicates the CSI measurement and computing capabilities of the terminal device. The method according to claim 8 or 9, further comprising:

12. Z ’ And at least one of the values ​​of Z is N TRP The functional relationship with the value of N in the said functional relationship is satisfied. TRP The values ​​of one or more of the parameters other than those mentioned above are determined based on the first capability information, and N TRP Having a correspondence with the value group, Z ’ and at least one of the above values ​​of Z and N TRP The correspondence between the aforementioned value and the aforementioned value is associated with the first capability information, The method according to claim 11, which satisfies one or more of the following conditions.

13. A device for determining a channel status information (CSI) reference resource, A transceiver unit configured to receive first information from a network device, wherein the first information is the number of reference signal resources N used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP The transceiver unit is a positive integer greater than or equal to 1, A processing unit configured to determine the time domain location of the CSI reference resource based on the first information, A device equipped with the following features.

14. A device for determining the time domain positional interval, A transceiver unit configured to receive first information from a network device, wherein the first information is the number N of reference signal resources used for channel status information (CSI) measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP The transceiver unit is a positive integer greater than or equal to 1, A processing unit configured to determine the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the downlink control information (DCI) that triggers the aperiodic CSI report is located, based on the first information, A device equipped with the following features.

15. When determining the time domain location of the CSI reference resource based on the first information, the processing unit: Reference slot interval n ref Determining the time-domain position of the CSI reference resource based on the above, where the downlink control information (DCI) that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth, [Math 5] The smallest positive integer greater than or equal to the above, [Math 6] This represents the number of symbols contained in one slot, Z ’ The value of is N TRP It is determined based on The apparatus according to claim 13, further configured to perform the following:

16. Z ’ And at least one of the values ​​of Z is N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the aforementioned value, and N TRP Having a correspondence with a group of values, The apparatus according to claim 14 or 15, which satisfies one or more of the following conditions.

17. The apparatus according to claim 14 or 15, wherein the transceiver unit is further configured to transmit first capability information to the network device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

18. Z ’ And at least one of the values ​​of Z is N TRP The functional relationship with the value of N in the said functional relationship is satisfied. TRP The values ​​of one or more of the parameters other than those mentioned above are determined based on the first capability information, and N TRP Having a correspondence with the value group, Z ’ and at least one of the above values ​​of Z and N TRP The correspondence between the aforementioned value and the aforementioned value is associated with the first capability information, The apparatus according to claim 17, which satisfies one or more of the following conditions.

19. A device for determining a channel status information (CSI) reference resource, A processing unit configured to determine a first piece of information, wherein the first piece of information is the number N of reference signal resources used for CSI measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP The processing unit is a positive integer greater than or equal to 1, A transceiver unit configured to transmit the first information to a terminal device, wherein the time-domain position of the CSI reference resource is determined based on the first information, and A device equipped with the following features.

20. A device for determining the time domain positional interval, A processing unit configured to determine a first piece of information, wherein the first piece of information is the number N of reference signal resources used for channel state information (CSI) measurement. TRP This indicates that the CSI reporting type is aperiodic CSI reporting, and N TRP The processing unit is a positive integer greater than or equal to 1, A transceiver unit configured to transmit the first information to a terminal device, wherein the minimum interval Z between the time-domain location of the resource where the aperiodic CSI report is performed and the time-domain location of the resource where the downlink control information (DCI) that triggers the aperiodic CSI report is located is determined based on the first information. A device equipped with the following features.

21. The time domain location of the CSI reference resource is determined based on the first information. The time domain position of the CSI reference resource is at the reference slot interval n ref This is determined based on the fact that when the downlink control information (DCI) that triggers the aperiodic CSI report and the aperiodic CSI report are not in the same slot, n ref teeth, [Number 7] The smallest positive integer greater than or equal to the above, [Number 8] This represents the number of symbols contained in one slot, Z ’ The value of is N TRP It is determined based on The apparatus according to claim 19, including the apparatus described in claim 19.

22. Z ’ And at least one of the values ​​of Z is N TRP Satisfying a functional relationship with the value, N TRP It is positively correlated with the aforementioned value, and N TRP Having a correspondence with a group of values, The apparatus according to claim 20 or 21, which satisfies one or more of the following conditions.

23. The apparatus according to claim 20 or 21, wherein the transceiver unit is further configured to receive first capability information from the terminal device, the first capability information indicating the CSI measurement and computing capabilities of the terminal device.

24. Z ’ And at least one of the values ​​of Z is N TRP The functional relationship with the value of N in the said functional relationship is satisfied. TRP The values ​​of one or more of the parameters other than those mentioned above are determined based on the first capability information, and N TRP Having a correspondence with the value group, Z ’ and at least one of the above values ​​of Z and N TRP The correspondence between the aforementioned value and the aforementioned value is associated with the first capability information, The apparatus according to claim 23, which satisfies one or more of the following conditions.

25. A communication device comprising a processor, memory, an input interface, and an output interface, wherein the input interface is configured to receive information from a communication device other than the communication device, and the output interface is configured to output information to a communication device other than the communication device, and when a computer program stored in the memory is called by the processor, the method according to any one of claims 1 to 12 is carried out.

26. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program or computer instruction, and when the computer program or computer instruction is executed by a processor, the method according to any one of claims 1 to 12 is performed.

27. A computer program comprising instructions, wherein when the instructions are executed by a processor, the method described in any one of claims 1 to 12 is performed.

28. A chip system comprising at least one processor, memory, and interface circuitry, wherein the memory, the interface circuitry, and the at least one processor are interconnected via wiring, the at least one memory stores instructions, and when the instructions are executed by the processor, the method according to any one of claims 1 to 12 is performed.

29. A communication system comprising a terminal device and a network device, wherein the terminal device is configured to carry out the method described in any one of claims 1 to 6, and the network device is configured to carry out the method described in any one of claims 7 to 12.

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