Resource configuration method, terminal and network device

Abstract

The present disclosure relates to a resource configuration method, a terminal and a network device. The method, which is executed by a terminal, comprises: receiving configuration information sent by a network device, wherein the configuration information comprises one or N channel state information-reference signal (CSI-RS) resource sets, the one CSI-RS resource set comprises N CSI-RS resource groups, each CSI-RS resource set among the N CSI-RS resource sets comprises at least one CSI-RS resource, and each CSI-RS resource group among the N CSI-RS resource groups comprises at least one CSI-RS resource, N being an integer greater than 1. Thus, a terminal can receive configuration information sent by a network device, and determine a plurality of CSI-RS resource sets or a plurality of CSI-RS resource groups, so as to measure and calculate corresponding CSI on the basis of the determined plurality of CSI-RS resource sets or the determined plurality of CSI-RS resource groups, thereby improving system performance.

Description

Resource configuration method, terminal, network equipment Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a resource configuration method, a terminal, and a network device. Background Art

[0002] Channel prediction is a process in which a terminal uses an algorithm to calculate the channel information at one or more future moments based on the channel information measured at multiple historical moments. The terminal can implement codebook-based channel state information (CSI) feedback through channel prediction.

[0003] Summary of the Invention

[0004] The resource configuration method, terminal, and network device provided by the embodiments of the present disclosure are used to solve the problem of how a terminal determines a channel state information-reference signal (CSI-RS) resource.

[0005] The embodiments of the present disclosure provide a resource configuration method, a terminal, and a network device.

[0006] According to the first aspect of an embodiment of the present disclosure, a resource configuration method is proposed, which is executed by a terminal and includes: receiving configuration information sent by a network device, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1. In the above embodiment, the terminal can receive the configuration information sent by the network device, determine multiple CSI-RS resource sets or multiple CSI-RS resource groups, and measure and calculate corresponding CSI based on the determined multiple CSI-RS resource sets or multiple CSI-RS resource groups, which can improve system performance.

[0007] According to a second aspect of an embodiment of the present disclosure, a resource configuration method is proposed, which is executed by a network device, including: sending configuration information to a terminal, wherein the configuration information includes one or N CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1.

[0008] In the above embodiment, the network device can send configuration information to the terminal to inform the terminal of the CSI-RS resource used to send the CSI-RS, which can ensure that the terminal can accurately receive the CSI-RS sent by the network device and improve system performance.

[0009] According to a third aspect of an embodiment of the present disclosure, a resource configuration method is proposed, wherein a network device sends configuration information to a terminal, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1; the terminal receives the configuration information sent by the network device.

[0010] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: a transceiver module for receiving configuration information sent by a network device, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0011] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including: a transceiver module, used to send configuration information to a terminal, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0012] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the method described in the first aspect.

[0013] According to a seventh aspect of an embodiment of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is used to execute the method described in the second aspect.

[0014] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0015] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

[0017] FIG2 is a flow chart of a resource configuration method provided by an embodiment of the present disclosure;

[0018] FIG3A is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0019] FIG3B is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0020] FIG3C is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0021] FIG3D is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0022] FIG3E is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0023] FIG4A is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0024] FIG4B is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0025] FIG4C is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0026] FIG4D is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0027] FIG4E is a flowchart of another resource configuration method provided by an embodiment of the present disclosure;

[0028] FIG5 is a schematic diagram of a method in which multiple TRPs provide services to a mobile terminal through a CJT according to an embodiment of the present disclosure;

[0029] FIG6A is a structural diagram of a terminal provided by an embodiment of the present disclosure;

[0030] FIG6B is a structural diagram of a network device provided by an embodiment of the present disclosure;

[0031] FIG7A is a structural diagram of a communication device provided by an embodiment of the present disclosure;

[0032] FIG7B is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] The embodiments of the present disclosure provide a resource configuration method, a terminal, and a network device.

[0034] In a first aspect, an embodiment of the present disclosure proposes a resource configuration method, which is executed by a terminal, including: receiving configuration information sent by a network device, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1.

[0035] In the above embodiment, the terminal can receive the configuration information sent by the network device, determine the CSI-RS resource used by the network device to send the CSI-RS, and can accurately receive the CSI-RS sent by the network device, thereby improving system performance.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups, and the above method also includes: the terminal sends indication information to the network device, wherein the indication information is used to instruct the terminal to select a target CSI-RS resource set from the N CSI-RS resource sets, or a target CSI-RS resource group from the N CSI-RS resource groups.

[0037] In the above embodiment, the terminal may select part of the CSI-RS resource sets among N CSI-RS resource sets, or select part of the CSI-RS resource groups among N CSI-RS resource groups, and report to the network device to indicate to the network device the part of the CSI-RS resource sets or part of the CSI-RS resource groups selected by the terminal.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the terminal sends indication information to the network device, including: sending a bit map to the network device, wherein the bit map includes N bits, and the specific values ​​of the N bits are used to indicate the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0039] In the above embodiment, the terminal can indicate to the network device the partial CSI-RS resource set or partial CSI-RS resource group selected by the terminal in the form of a bit map. The reported content does not need to carry the content of the partial CSI-RS resource set or partial CSI-RS resource group selected by the terminal, which can reduce communication overhead and save terminal resources.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the above method also includes: the terminal receives a trigger message sent by the network device, wherein the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS, or to instruct the network device to use N CSI-RS resource groups to send CSI-RS; the terminal receives the CSI-RS sent by the network device according to the trigger message.

[0041] In the above embodiment, the terminal can receive the trigger message sent by the network device, determine the time when the network device uses the CSI-RS resource to send the CSI-RS, and then receive the CSI-RS sent by the network device at the corresponding time, which can ensure that the terminal accurately receives the CSI-RS sent by the network device and improve system performance.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the terminal performs measurement calculation based on the CSI-RS to determine the channel state information CSI; and sends the CSI to the network device.

[0043] In the above embodiment, the terminal can determine the CSI and report it to the network device, and the terminal can estimate historical channel information based on multiple CSI-RSs sent by the network device on multiple CSI-RS resource sets or multiple CSI-RS resource groups, determine the channel information at future times, and further implement CSI feedback based on the channel information at future times. Since the channel information at future times is based on multiple CSI-RSs sent by the network device on multiple CSI-RS resource sets or multiple CSI-RS resource groups, the matching degree between the feedback CSI and the channel for transmitting data can be improved, thereby improving system performance. In addition, if the terminal is in a fast-moving state, the terminal implements CSI feedback based on the channel information at future times, and can also avoid the problem of system performance degradation caused by channel aging.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the terminal performs measurement calculations based on the CSI-RS to determine the CSI, including: determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource set, wherein the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets; or determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource group, wherein the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0045] In the above embodiment, the terminal can select a target CSI-RS resource set of N CSI-RS resource sets, and determine the CSI based on the CSI-RS measurement calculation sent by the network device using the target CSI-RS resource set, or the terminal can select a target CSI-RS resource group of N CSI-RS resource groups, and determine the CSI based on the CSI-RS measurement calculation sent by the network device using the target CSI-RS resource group.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the terminal receives a trigger message sent by a network device, including: receiving an activation signaling sent by the network device, wherein one activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or to trigger the network device to use N CSI-RS resource groups to send CSI-RS; or receiving N activation signalings sent by the network device, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group in the N CSI-RS resource groups to send CSI-RS.

[0047] In the above embodiment, the terminal may receive one or N activation signals sent by the network device, and determine that the network device uses N CSI-RS resource sets or N CSI-RS resource groups to send CSI-RS.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the activation signaling is DCI; or the CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE; or the CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the CSI-RS resources in N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in N CSI-RS resource sets are semi-persistent CSI-RS resources; the CSI-RS resources in one CSI-RS resource set are non-periodic CSI-RS resources, or the CSI-RS resources in one CSI-RS resource set are periodic CSI-RS resources, or the CSI-RS resources in one CSI-RS resource set are semi-persistent CSI-RS resources.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets is the same or different.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are the same; and / or the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or

[0053] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different; and / or

[0054] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0055] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources. Different CSI-RS resource sets in the N CSI-RS resource sets have the same or different CSI-RS resource offset values.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the periods of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and different periods satisfy an integer multiple relationship; or the offset values ​​of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and the difference between different offset values ​​is one time slot.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, all CSI-RS resources in one or N CSI-RS resource sets meet a specific condition, where the specific condition includes at least one of the following:

[0058] have the same density;

[0059] Have the same number of ports;

[0060] have the same bandwidth;

[0061] Have the same code division multiplexing CDM type;

[0062] Have the same time domain type.

[0063] In combination with some embodiments of the first aspect, in some embodiments, all CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets have the same antenna ports with the same port index; or all CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups have the same antenna ports with the same port index.

[0064] In combination with some embodiments of the first aspect, in some embodiments, different CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets are transmitted in different time slots; or different CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are transmitted in different time slots.

[0065] In combination with some embodiments of the first aspect, in some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a first value; and / or

[0066] The number N of the N CSI-RS resource sets or N CSI-RS resource groups is greater than the first threshold and less than or equal to the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the second value; and / or

[0067] The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fourth value; and / or the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than the third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fifth value.

[0069] In a second aspect, an embodiment of the present disclosure proposes a resource configuration method, which is executed by a network device, including: sending configuration information to a terminal, wherein the configuration information includes one or N CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0070] In the above embodiment, the network device can send configuration information to the terminal to inform the terminal of the CSI-RS resource used to send the CSI-RS, which can ensure that the terminal can accurately receive the CSI-RS sent by the network device and improve system performance.

[0071] In combination with some embodiments of the second aspect, in some embodiments, the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups, and the above method also includes: the network device receives the indication information sent by the terminal, wherein the indication information is used to instruct the terminal to select a target CSI-RS resource set from the N CSI-RS resource sets, or a target CSI-RS resource group from the N CSI-RS resource groups.

[0072] In the above embodiment, the network device may determine the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0073] In combination with some embodiments of the second aspect, in some embodiments, the network device receives indication information sent by the terminal, including: receiving a bit map sent by the terminal, wherein the bit map includes N bits, and the specific values ​​of the N bits are used to indicate the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0074] In the above embodiment, the network device can receive the bit map sent by the terminal, and has determined the partial CSI-RS resource set or partial CSI-RS resource group selected by the terminal. The content received by the network device does not need to carry the content of the partial CSI-RS resource set or partial CSI-RS resource group selected by the terminal, which can reduce communication overhead.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the above method also includes: the network device sends a trigger message to the terminal, wherein the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS, or to instruct the network device to use N CSI-RS resource groups to send CSI-RS.

[0076] In the above embodiment, the network device may send indication information to the terminal to indicate the time to send the CSI-RS, so as to ensure that the terminal accurately receives the CSI-RS sent by the network device, thereby improving system performance.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the network device receives CSI sent by the terminal, wherein the CSI is determined by the terminal through measurement and calculation based on the CSI-RS.

[0078] In the above embodiment, the network device can receive the CSI reported by the terminal. The received CSI has a high degree of matching with the channel of the transmitted data, which can improve the system performance.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the CSI is determined by measuring and calculating the CSI-RS sent by the terminal according to the network device using the target CSI-RS resource set, and the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets, or the CSI is determined by measuring and calculating the CSI-RS sent by the terminal according to the network device using the target CSI-RS resource group, and the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the network device sends a trigger message to the terminal, including: sending an activation signaling to the terminal, wherein one activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or is used to trigger the network device to use N CSI-RS resource groups to send CSI-RS; or sending N activation signaling to the terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group in the N CSI-RS resource groups to send CSI-RS.

[0081] In the above embodiment, the network device may send one or N activation signalings to the terminal to instruct the terminal to use N CSI-RS resource sets or N CSI-RS resource groups to send CSI-RSs.

[0082] In combination with some embodiments of the second aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the activation signaling is DCI; or the CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE; or the CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the CSI-RS resources in N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in N CSI-RS resource sets are semi-persistent CSI-RS resources; the CSI-RS resources in one CSI-RS resource set are non-periodic CSI-RS resources, or the CSI-RS resources in one CSI-RS resource set are periodic CSI-RS resources, or the CSI-RS resources in one CSI-RS resource set are semi-persistent CSI-RS resources.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets is the same or different.

[0085] In combination with some embodiments of the second aspect, in some embodiments, the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are the same; and / or the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of N CSI-RS resource groups are the same or different.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or

[0087] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different; and / or

[0088] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0089] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources. Different CSI-RS resource sets in the N CSI-RS resource sets have the same or different CSI-RS resource offset values.

[0090] In combination with some embodiments of the second aspect, in some embodiments, the periods of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and different periods satisfy an integer multiple relationship; or the offset values ​​of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and the difference between different offset values ​​is one time slot.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, all CSI-RS resources in one or N CSI-RS resource sets meet a specific condition, where the specific condition includes at least one of the following:

[0092] have the same density;

[0093] Have the same number of ports;

[0094] have the same bandwidth;

[0095] Have the same code division multiplexing CDM type;

[0096] Have the same time domain type.

[0097] In combination with some embodiments of the second aspect, in some embodiments, all CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets have the same antenna ports with the same port index; or all CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups have the same antenna ports with the same port index.

[0098] In combination with some embodiments of the second aspect, in some embodiments, different CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets are transmitted in different time slots; or different CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are transmitted in different time slots.

[0099] In combination with some embodiments of the second aspect, in some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to the first threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the first value; and / or

[0100] The number N of the N CSI-RS resource sets or N CSI-RS resource groups is greater than the first threshold and less than or equal to the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the second value; and / or

[0101] The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

[0102] In combination with some embodiments of the second aspect, in some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fourth value; and / or the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than the third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fifth value.

[0103] In a third aspect, an embodiment of the present disclosure proposes a resource configuration method, where a network device sends configuration information to a terminal, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1; the terminal receives the configuration information sent by the network device.

[0104] In the above embodiment, the terminal can receive the configuration information sent by the network device, determine the CSI-RS resource used by the network device to send the CSI-RS, and can accurately receive the CSI-RS sent by the network device, thereby improving system performance.

[0105] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0106] In a fifth aspect, an embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the second aspect.

[0107] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0108] In a seventh aspect, an embodiment of the present disclosure proposes a network device, which includes: one or more processors; wherein the network device is used to execute the optional implementation method of the second aspect.

[0109] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0110] In a ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0111] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0112] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0113] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0114] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0115] The embodiments of the present disclosure provide a resource configuration method, a terminal, and a network device. In some embodiments, the resource configuration method, information processing method, communication method, and other terms can be used interchangeably.

[0116] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0117] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0118] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0119] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0120] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0121] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0122] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0123] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0124] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0125] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0126] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0127] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0128] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0129] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0130] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0131] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0132] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0133] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0134] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0135] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0136] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0137] FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure.

[0138] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0139] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0140] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0141] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0142] In some embodiments, the core network device may be a single device including a first network function, a second network function, etc., or may be a plurality of devices or a group of devices each including all or part of the first network function, the second network function, etc. The network function may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0143] In some embodiments, the first network function is, for example, an access and mobility management function (AMF).

[0144] In some embodiments, the first network function is used for access control and mobility management of the terminal accessing the operator network, for example, including functions such as mobile status management, allocation of user temporary identity, authentication and authorization of users, etc., and its name is not limited to this.

[0145] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0146] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0147] The embodiments of the present disclosure may be applied to long term evolution (LTE), LTE-advanced (LTE-A), LTE-beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), global system for mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-wideband (UWB), and the like. band, UWB), Bluetooth (registered trademark), public land mobile network (PLMN) network, device-to-device (D2D) system, machine-to-machine (M2M) system, Internet of Things (IoT) system, vehicle-to-everything (V2X), systems using other communication methods, and next-generation systems based on them. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) for application.

[0148] In related technologies, how a terminal determines CSI-RS resources is an issue that needs to be urgently addressed.

[0149] Based on this, embodiments of the present disclosure provide a resource configuration method, a terminal, and a network device, wherein the method performed by the terminal includes: receiving configuration information sent by the network device, wherein the configuration information includes one or N channel state information reference signal (CSI-RS) resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, where N is an integer greater than 1. Thus, the terminal can receive the configuration information sent by the network device, determine multiple CSI-RS resource sets or multiple CSI-RS resource groups, and measure and calculate corresponding CSI based on the determined multiple CSI-RS resource sets or multiple CSI-RS resource groups, thereby improving system performance.

[0150] It should be understood that CSI-RS resources can be included in a CSI-RS resource set. The network device can configure a CSI-RS resource set, which includes multiple CSI-RS resource groups, each CSI-RS resource group includes at least one CSI-RS resource, wherein the multiple CSI-RS resource groups can correspond to multiple TRPs. Alternatively, the network device can configure multiple CSI-RS resource sets, each CSI-RS resource set corresponds to a TRP and includes at least one CSI-RS resource.

[0151] Figure 2 is an interactive diagram of a resource configuration method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiment of the present disclosure relates to a resource configuration method, which includes:

[0152] S201: The network device sends configuration information to the terminal.

[0153] In some embodiments, the terminal receives configuration information.

[0154] In some embodiments, the name of the configuration information is not limited, and it can be, for example, "first information", "indication information", etc.

[0155] In some embodiments, the configuration information is used to indicate the CSI-RS resources configured by the network device for the terminal.

[0156] In some embodiments, the configuration information includes one or more CSI-RS resources.

[0157] In some embodiments, the configuration information includes a CSI-RS resource set, where a CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0158] In some embodiments, the configuration information includes multiple CSI-RS resource groups in a CSI-RS resource set, which are used for the terminal to measure channel information, wherein the channel information may be channel information at a historical moment, and further, the terminal may determine the channel information at a future moment based on the channel information at the historical moment, and implement CSI feedback based on the channel information at the future moment.

[0159] In some embodiments, the configuration information includes multiple CSI-RS resource sets, for example, N CSI-RS resource sets, each of the N CSI-RS resource sets includes at least one CSI-RS resource, and N is an integer greater than 1.

[0160] In some embodiments, the configuration information includes multiple CSI-RS resource sets for the terminal to measure channel information, wherein the channel information may be channel information at a historical moment, and further, the terminal may determine the channel information at a future moment based on the channel information at the historical moment, and implement CSI feedback based on the channel information at the future moment.

[0161] In some embodiments, when the configuration information includes a CSI-RS resource set containing N CSI-RS resource groups, the N CSI-RS resource groups may correspond to N transmission reception points (TRPs). Thus, the network device may configure a terminal with CSI-RS resource groups corresponding to multiple TRPs.

[0162] In some embodiments, when the configuration information includes N CSI-RS resource sets, the N CSI-RS resource sets may correspond to N TRPs. Thus, the network device may configure a plurality of CSI-RS resource sets corresponding to the TRPs for the terminal.

[0163] In some embodiments, multiple TRPs can provide services to mobile terminals through coherent joint transmission (CJT).

[0164] For example, as shown in FIG5 , three TRPs are shown as a schematic diagram of providing services to mobile terminals through CJT.

[0165] In the embodiment of the present disclosure, the network device can configure multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs for the terminal.

[0166] Among them, on the one hand, the terminal can select the CSI-RS resource sets or CSI-RS resource groups corresponding to some or all of the TRPs based on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, and report to the network device to indicate the TRP selected by the terminal. On the other hand, the terminal can accurately receive the CSI-RS sent by the network device on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, predict the channel information at a future moment based on the channel information measured by the CSI-RS, and implement CSI feedback based on the channel information at a future moment, which can solve the problem of mismatch between the feedback CSI and the channel of the transmitted data caused by channel aging of the fast-moving terminal, and can improve system performance.

[0167] In the embodiment of the present disclosure, the network device can send configuration information to the terminal on its own, or can send configuration information to the terminal based on the terminal's request, or can send configuration information to the terminal based on specific circumstances agreed upon in the protocol. The embodiment of the present disclosure does not impose specific restrictions on this.

[0168] In some embodiments, the network device uses radio resource control (RRC) signaling to send configuration information to the terminal, or may also use downlink control information (DCI) to send configuration information to the terminal, or may also use a medium access control layer control element (MAC CE) to send configuration information to the terminal.

[0169] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources.

[0170] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources.

[0171] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources.

[0172] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources.

[0173] In some embodiments, the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are non-periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are semi-persistent CSI-RS resources.

[0174] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources.

[0175] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups are periodic CSI-RS resources.

[0176] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources.

[0177] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are the same; and / or the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

[0178] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each of the N CSI-RS resource sets are the same.

[0179] Exemplarily, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same. For example, the interval between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is m time slots (slots), where m is a positive integer ≥1.

[0180] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

[0181] In some embodiments, the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups are the same; and / or the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

[0182] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each of the N CSI-RS resource groups are the same.

[0183] Exemplarily, the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are non-periodic CSI-RS resources, and the interval between adjacent CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups is the same. For example, the interval between adjacent CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups is m time slots, where m is a positive integer ≥1.

[0184] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

[0185] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0186] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different; and / or

[0187] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0188] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources. Different CSI-RS resource sets in the N CSI-RS resource sets have the same or different CSI-RS resource offset values.

[0189] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each of the N CSI-RS resource sets is the same.

[0190] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different.

[0191] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same.

[0192] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset values ​​of the CSI-RS resources are the same or different between different CSI-RS resource sets in the N CSI-RS resource sets.

[0193] In some embodiments, the periods of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and different periods satisfy an integer multiple relationship; or the offset values ​​of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and the difference between different offset values ​​is one time slot.

[0194] In the embodiment of the present disclosure, different CSI-RS resource sets among the N CSI-RS resource sets have different periods of CSI-RS resources, and the different periods satisfy an integer multiple relationship.

[0195] In the embodiment of the present disclosure, the offset values ​​of the CSI-RS resources are different between different CSI-RS resource sets of the N CSI-RS resource sets, and the difference between the different offset values ​​is one time slot.

[0196] In some embodiments, all CSI-RS resources in one or N CSI-RS resource sets meet a specific condition, where the specific condition includes at least one of the following:

[0197] have the same density;

[0198] Have the same number of ports;

[0199] have the same bandwidth;

[0200] Have the same code division multiplexing CDM type;

[0201] Have the same time domain type.

[0202] In the embodiment of the present disclosure, all CSI-RS resources among the multiple CSI-RS resources in a CSI-RS resource set meet a specific condition.

[0203] In the embodiment of the present disclosure, all CSI-RS resources in the multiple CSI-RS resource sets meet specific conditions.

[0204] In the embodiment of the present disclosure, all CSI-RS resources in one or N CSI-RS resource sets have the same density.

[0205] In the embodiment of the present disclosure, all CSI-RS resources in one or N CSI-RS resource sets have the same number of ports.

[0206] In the embodiment of the present disclosure, all CSI-RS resources in one or N CSI-RS resource sets have the same bandwidth.

[0207] In the embodiments of the present disclosure, all CSI-RS resources in one or N CSI-RS resource sets satisfy the same code domain multiplexing (CDM) type.

[0208] In the embodiment of the present disclosure, all CSI-RS resources in one or N CSI-RS resource sets meet the requirement of having the same time domain type.

[0209] In some embodiments, all CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets have the same antenna port with the same port index; or all CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups have the same antenna port with the same port index.

[0210] In some embodiments, different CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets are transmitted in different time slots; or different CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are transmitted in different time slots.

[0211] In some embodiments, the number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of the CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a first value; and / or

[0212] The number N of the N CSI-RS resource sets or N CSI-RS resource groups is greater than the first threshold and less than or equal to the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the second value; and / or

[0213] The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

[0214] For example, the first threshold K th1 is 2, the first value P1 is 32, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to 2, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 32.

[0215] For example, the first threshold K th1 is 2, the second threshold K th2 is 3, the second value P2 is 12, the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 2 and less than or equal to 3, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 12.

[0216] For example, the second threshold K th2 is 3, the third value P3 is 8, the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 3, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 8.

[0217] For example, the first threshold K th1 is 2, the first value P1 is 32, and the second threshold K th2The first value P1 is 3, the second value P2 is 12, and the third value P3 is 8. The number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to 2, the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 32, the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 2 and less than or equal to 3, the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 12, the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 3, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 8.

[0218] In some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fourth value; and / or the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than the third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fifth value.

[0219] For example, the third threshold K th3 is 2, the fourth value P4 is 32, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to 2, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 32.

[0220] For example, the third threshold K th3 is 2, the fifth value P5 is 16, the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 2, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 16.

[0221] For example, the third threshold K th3 is 2, the fourth value P4 is 32, the fifth value P5 is 16, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to 2, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 32; the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than 2, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than 16.

[0222] S202: The terminal sends instruction information to the network device.

[0223] In an embodiment of the present disclosure, the terminal may send indication information to the network device. When the terminal receives configuration information sent by the network device, and the configuration information includes CSI-RS resources, the indication information may be used to instruct the terminal to select a target CSI-RS resource from the CSI-RS resources indicated by the configuration information.

[0224] The target CSI-RS resource may be all or part of the CSI-RS resources indicated by the configuration information.

[0225] In some embodiments, the terminal receives configuration information sent by a network device, where the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups.

[0226] In some embodiments, the configuration information includes N CSI-RS resource sets, and the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets.

[0227] The target CSI-RS resource set may be part or all of the N CSI-RS resource sets.

[0228] In some embodiments, the configuration information includes a CSI-RS resource set, which includes multiple CSI-RS resource groups, and the indication information is used to indicate the target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0229] The target CSI-RS resource group may be part or all of the N CSI-RS resource groups.

[0230] In some embodiments, N CSI-RS resource sets may correspond to N TRPs.

[0231] In some embodiments, N CSI-RS resource groups may correspond to N TRPs.

[0232] In some embodiments, N TRPs may provide services to the terminal through CJT.

[0233] In some embodiments, the indication information sent by the terminal to the network device indicates the target CSI-RS resource set selected from N CSI-RS resource sets. Since N CSI-RS resource sets can correspond to N TRPs, the terminal can indicate the selected TRP to the network device.

[0234] Exemplarily, the configuration information sent by the network device includes three CSI-RS resource sets, namely CSI-RS resource set #1, CSI-RS resource set #2, and CSI-RS resource set #3, where CSI-RS resource set #1 corresponds to TRP #1, CSI-RS resource set #2 corresponds to TRP #2, and CSI-RS resource set #3 corresponds to TRP #3. The indication information sent by the terminal to the network device indicates that the target CSI-RS resource sets selected from the three CSI-RS resource sets are CSI-RS resource set #2 and CSI-RS resource set #3. That is, the terminal can indicate the selected TRP #2 and TRP #3 to the network device. Thus, the terminal can indicate to the network device the selection of TRP #2 and TRP #3 to implement CJT.

[0235] In some embodiments, the indication information sent by the terminal to the network device indicates the target CSI-RS resource group selected from N CSI-RS resource groups. Since N CSI-RS resource groups can correspond to N TRPs, the terminal can indicate the selected TRP to the network device.

[0236] Exemplarily, the configuration information sent by the network device includes three CSI-RS resource groups, namely CSI-RS resource group #1, CSI-RS resource group #2, and CSI-RS resource group #3, where CSI-RS resource group #1 corresponds to TRP #1, CSI-RS resource group #2 corresponds to TRP #2, and CSI-RS resource group #3 corresponds to TRP #3. The indication information sent by the terminal to the network device indicates that the target CSI-RS resource groups selected from the three CSI-RS resource groups are CSI-RS resource group #2 and CSI-RS resource group #3. That is, the terminal can indicate the selected TRP #2 and TRP #3 to the network device. Thus, the terminal can instruct the network device to select TRP #2 and TRP #3 to implement CJT.

[0237] In some embodiments, the terminal sends indication information to the network device, including: sending a bit map to the network device, wherein the bit map includes N bits, and specific values ​​of the N bits are used to indicate the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0238] In an embodiment of the present disclosure, the terminal may send a bitmap to a network device, where the bitmap includes N bits, and specific values ​​of the N bits are used to indicate a target CSI-RS resource set selected by the terminal from N CSI-RS resource sets.

[0239] In an embodiment of the present disclosure, the terminal may send a bitmap to a network device, where the bitmap includes N bits, and specific values ​​of the N bits are used to indicate a target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0240] Exemplarily, the configuration information sent by the network device to the terminal indicates a CSI-RS resource set, where a CSI-RS resource set includes three CSI-RS resource groups, and each CSI-RS resource group includes four CSI-RS resources. The terminal can predict the channel information at a future moment based on the channels measured by these three CSI-RS resource groups, and then use the predicted channel information to determine the CSI. Finally, it determines which CSI-RS resource group to select based on the determined CSI.

[0241] Assuming that the terminal selects the first and third CSI-RS resource groups based on the determined CSI, the terminal can indicate the selected CSI-RS resource groups by reporting a 3-bit bitmap, as shown in Table 1 below. A bit "1" in the table below indicates that the terminal has selected the CSI-RS resources of that CSI-RS resource group. Otherwise, the CSI-RS resources of that CSI-RS resource group are not selected by the terminal.

[0242] Table 1

[0243] Exemplarily, the configuration information sent by the network device to the terminal indicates multiple CSI-RS resource sets, each of which includes 4 CSI-RS resources. The terminal can predict the channel information at a future time based on the channels measured by these 3 CSI-RS resource sets, and then use the predicted channel information to determine the CSI. Finally, it determines which CSI-RS resource set to select based on the determined CSI.

[0244] Assuming that the terminal selects the first and third CSI-RS resource sets based on the determined CSI, the terminal can indicate the selected CSI-RS resource sets by reporting a 3-bit bitmap, as shown in Table 2 below. A bit position of "1" in the table below indicates that the terminal has selected the CSI-RS resources of the CSI-RS resource set. Otherwise, the CSI-RS resources of the CSI-RS resource set are not selected by the terminal.

[0245] Table 2

[0246] S203: The network device sends a trigger message to the terminal.

[0247] In some embodiments, the network device may send a trigger message to the terminal, where the trigger message is used to instruct the network device to use the configured CSI-RS resources to send the CSI-RS to the terminal.

[0248] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS.

[0249] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource groups to send CSI-RS.

[0250] In some embodiments, the network device sends a trigger message to the terminal, including: sending M activation signalings to the terminal, wherein the M activation signalings are used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or to trigger the network device to use N CSI-RS resource groups to send CSI-RS, and M is an integer greater than 1 and less than N.

[0251] Exemplarily, the network device sends two activation signalings to the terminal, such as activation signaling #1 and activation signaling #2. The two activation signalings are used to trigger the network device to use three CSI-RS resource sets to send CSI-RS. The three CSI-RS resource sets are, for example, CSI-RS resource set #1, CSI-RS resource set #2 and CSI-RS resource set #3. Among them, activation signaling #1 is used to trigger the network device to use CSI-RS resource set #1 to send CSI-RS, and activation signaling #2 is used to trigger the network device to use CSI-RS resource set #2 and CSI-RS resource set #3 to send CSI-RS.

[0252] Exemplarily, the network device sends two activation signalings to the terminal, such as activation signaling #1 and activation signaling #2. The two activation signalings are used to trigger the network device to use three CSI-RS resource groups to send CSI-RS. The three CSI-RS resource groups are, for example, CSI-RS resource group #1, CSI-RS resource group #2 and CSI-RS resource group #3. Among them, activation signaling #1 is used to trigger the network device to use CSI-RS resource group #1 to send CSI-RS, and activation signaling #2 is used to trigger the network device to use CSI-RS resource group #2 and CSI-RS resource group #3 to send CSI-RS.

[0253] It should be understood that the multiple activation signalings sent by the network device can be for the same CSI-RS resource group. For example, the network device sends two activation signalings to the terminal, such as activation signaling #1 and activation signaling #2. The two activation signalings are used to trigger the network device to use three CSI-RS resource groups to send CSI-RS. The three CSI-RS resource groups are, for example, CSI-RS resource group #1, CSI-RS resource group #2 and CSI-RS resource group #3, wherein activation signaling #1 is used to trigger the network device to use CSI-RS resource group #1 and resource group #2 to send CSI-RS, and activation signaling #2 is used to trigger the network device to use CSI-RS resource group #2 and CSI-RS resource group #3 to send CSI-RS.

[0254] It should be noted that the above examples are only for illustration and are not intended to be specific limitations on the embodiments of the present disclosure. The values ​​of M and N may also be any other values.

[0255] In some embodiments, the network device sends a trigger message to the terminal, including: sending an activation signaling to the terminal, wherein the activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or is used to trigger the network device to use N CSI-RS resource groups to send CSI-RS; or sending N activation signaling to the terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group in the N CSI-RS resource groups to send CSI-RS.

[0256] In an embodiment of the present disclosure, a network device sends an activation signaling to a terminal, wherein the activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RSs.

[0257] In an embodiment of the present disclosure, a network device sends an activation signaling to a terminal, wherein the activation signaling is used to trigger the network device to use N CSI-RS resource groups to send CSI-RSs.

[0258] In an embodiment of the present disclosure, a network device sends N activation signalings to a terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set among the N CSI-RS resource sets to send a CSI-RS.

[0259] In an embodiment of the present disclosure, a network device sends N activation signalings to a terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource group among the N CSI-RS resource groups to send a CSI-RS.

[0260] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are aperiodic CSI-RS resources, and the activation signaling is DCI; or

[0261] The CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or

[0262] The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE; or

[0263] The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0264] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the activation signaling is DCI.

[0265] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI.

[0266] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0267] In the embodiment of the present disclosure, the CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0268] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set, wherein the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource set or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0269] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource set.

[0270] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group, where the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource group or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0271] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource group.

[0272] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource set can be determined according to the sending time of the activation signaling for activating the CSI-RS resource set and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource set.

[0273] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource group can be determined based on the sending time of the activation signaling for activating the CSI-RS resource group and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource group.

[0274] Exemplarily, the configuration information sent by the network device to the terminal is used to indicate N CSI-RS resource sets, the N CSI-RS resource sets correspond to N TRPs respectively, each TRP is configured with a CSI-RS resource set, and each CSI-RS resource set contains K non-periodic CSI-RS resources, where K is a positive integer ≥1.

[0275] The network device sends a trigger message to the terminal, where the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS.

[0276] In a possible implementation, the trigger message may be an activation signaling, and an activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS. An activation signaling may be, for example, a DCI. The configuration information sent by the network device to the terminal may also include a first offset value corresponding to each CSI-RS resource set, or the activation signaling sent by the network device to the terminal also includes the first offset value corresponding to each CSI-RS resource set. Based on this, the network device sends configuration information and an activation signaling to the terminal, which may instruct the network device to use the first CSI-RS resource in each CSI-RS resource set to send the CSI-RS at a sending time, wherein the sending time of the CSI-RS by the first CSI-RS resource in each CSI-RS resource set is determined based on the activation signaling and the first offset value corresponding to each CSI-RS resource set.

[0277] The interval between adjacent CSI-RS resources is m time slots, and the first CSI-RS resource may be a resource corresponding to the minimum resource identifier (ID) value in the CSI-RS resource set, or may be a CSI-RS resource determined by negotiation between the terminal and the network device.

[0278] In another possible implementation, the trigger message may be N activation signalings, each of which is used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS. The N activation signalings may be, for example, N DCIs. The configuration information sent by the network device to the terminal may further include a second offset value corresponding to each CSI-RS resource set, or the N activation signalings sent by the network device to the terminal may further include a second offset value corresponding to the activation of the corresponding CSI-RS resource set. Based on this, the network device sends configuration information and N activation signalings to the terminal, which may respectively instruct the network device to use the first CSI-RS resource in the CSI-RS resource set to send the CSI-RS at a sending time, where the sending time is determined based on the activation signaling and the second offset value.

[0279] The interval between adjacent CSI-RS resources is m ≥ 1 time slots, and the first CSI-RS resource may be a resource corresponding to the minimum resource identifier (ID) value in the CSI-RS resource set, or may be a CSI-RS resource determined by negotiation between the terminal and the network device.

[0280] Exemplarily, the configuration information sent by the network device to the terminal is used to indicate three CSI-RS resource sets, namely CSI-RS resource set #1, CSI-RS resource set #2 and CSI-RS resource set #3, where CSI-RS resource set #1 corresponds to TRP#1, CSI-RS resource set #2 corresponds to TRP#2, and CSI-RS resource set #3 corresponds to TRP#3, and each CSI-RS resource set contains four non-periodic CSI-RS resources.

[0281] In one possible implementation, the trigger message may be a DCI. The configuration information sent by the network device to the terminal may further include a first offset value corresponding to each CSI-RS resource set, for example, the first offset value corresponding to CSI-RS resource set #1 is 4 time slots, the first offset value corresponding to CSI-RS resource set #2 is 4 time slots, and the first offset value corresponding to CSI-RS resource set #3 is 5 time slots. Alternatively, an activation signaling sent by the network device to the terminal may also include the first offset value corresponding to each CSI-RS resource set, for example, the first offset value corresponding to CSI-RS resource set #1 is 4 time slots, the first offset value corresponding to CSI-RS resource set #2 is 4 time slots, and the first offset value corresponding to CSI-RS resource set #3 is 5 time slots.

[0282] Based on this, the network device sends configuration information and a DCI to the terminal, which can instruct the network device to use the first CSI-RS resource in each CSI-RS resource set to send the CSI-RS sending time, wherein the first CSI-RS resource in each CSI-RS resource set sends the CSI-RS sending time based on the activation signaling and the first offset value.

[0283] For example, the sending time of the first CSI-RS resource in CSI-RS resource set #1 can be the sending time of DCI offset by 4 time slots, the sending time of the first CSI-RS resource in CSI-RS resource set #2 can be the sending time of DCI offset by 4 time slots, and the sending time of the first CSI-RS resource in CSI-RS resource set #3 can be the sending time of DCI offset by 5 time slots.

[0284] The interval between adjacent CSI-RS resources is m ≥ 1 time slots, and the first CSI-RS resource may be a resource corresponding to the minimum resource identifier (ID) value in the CSI-RS resource set, or may be a CSI-RS resource determined by negotiation between the terminal and the network device.

[0285] In another possible implementation, the trigger message may be three DCIs, each of which is used to trigger the network device to use one of the three CSI-RS resource sets to send CSI-RS. For example, DCI#1 is used to trigger CSI-RS resource set #1 to send CSI-RS, DCI#2 is used to trigger CSI-RS resource set #2 to send CSI-RS, and DCI#3 is used to trigger CSI-RS resource set #3 to send CSI-RS. The configuration information sent by the network device to the terminal may further include a second offset value corresponding to each CSI-RS resource set, or the three activation signalings sent by the network device to the terminal may further include the second offset value corresponding to the corresponding CSI-RS resource set.

[0286] For example, the second offset value corresponding to CSI-RS resource set #1 is 4 time slots, the second offset value corresponding to CSI-RS resource set #2 is 4 time slots, and the second offset value corresponding to CSI-RS resource set #3 is 5 time slots, or the three DCIs sent by the network device to the terminal also include the second offset value corresponding to each CSI-RS resource set, for example, DCI #1 includes a second offset value corresponding to CSI-RS resource set #1 of 4 time slots, DCI #2 includes a second offset value corresponding to CSI-RS resource set #2 of 4 time slots, and DCI #3 includes a second offset value corresponding to CSI-RS resource set #3 of 5 time slots.

[0287] Based on this, the network device sends configuration information and 3 DCIs to the terminal, which can respectively instruct the network device to use the first CSI-RS resource in each CSI-RS resource set to send the CSI-RS sending time, and the sending time is determined based on the activation signaling and the second offset value.

[0288] For example, the sending time of the CSI-RS of the first CSI-RS resource in CSI-RS resource set #1 can be the sending time of DCI#1 offset by 4 time slots, the sending time of the first CSI-RS resource in CSI-RS resource set #2 can be the sending time of DCI#2 offset by 4 time slots, and the sending time of the first CSI-RS resource in CSI-RS resource set #3 can be the sending time of DCI#3 offset by 5 time slots.

[0289] The interval between adjacent CSI-RS resources is m ≥ 1 time slots, and the first CSI-RS resource can be the resource corresponding to the minimum resource identifier (ID) value in each CSI-RS resource set, or can also be the CSI-RS resource determined by negotiation between the terminal and the network device.

[0290] It can be understood that the configuration information sent by the network device to the terminal includes N CSI-RS resource groups, and the trigger message sent by the network device is used to instruct the network device to use N CSI-RS resource groups to send CSI-RS. This is similar to the above-mentioned situation where the configuration information sent by the network device includes N CSI-RS resource sets, and the trigger message sent by the network device is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS. No further details will be given here.

[0291] It should be noted that the above example is illustrated by taking the CSI-RS resource set including non-periodic CSI-RS resources as an example. The same is true for the case where the CSI-RS resource set or CSI-RS resource group includes periodic CSI-RS resources or semi-persistent CSI-RS resources, which will not be repeated here.

[0292] In some embodiments, when there are N CSI-RS resource sets, each of which includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within two adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to two time slots.

[0293] In some embodiments, when there are N CSI-RS resource groups, each CSI-RS resource group includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within 2 adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to 2 time slots.

[0294] S204: The network device sends a CSI-RS to the terminal.

[0295] In the embodiment of the present disclosure, the network device may send a CSI-RS to the terminal.

[0296] In some embodiments, when the configuration information sent by the network device to the terminal includes N CSI-RS resource sets, the network device may use CSI-RS resources in the N CSI-RS resource sets to send CSI-RS to the terminal.

[0297] In some embodiments, the network device sends configuration information to the terminal, and the configuration information includes a CSI-RS resource set, and a CSI-RS resource set includes N CSI-RS resource groups. The network device can use the CSI-RS resources in the N CSI-RS resource groups to send CSI-RS to the terminal.

[0298] In some embodiments, the network device sends a trigger message to the terminal, which can determine the sending time of the used CSI-RS resource, and further, can send the CSI-RS to the terminal at the corresponding sending time.

[0299] In some embodiments, the network device sends configuration information and an activation message to the terminal. The network device can determine the CSI-RS resources used and the corresponding sending time, and then use the CSI-RS resources to send CSI-RS to the terminal at the corresponding sending time.

[0300] S205: The terminal performs measurement and calculation based on the CSI-RS to determine the CSI.

[0301] In the embodiment of the present disclosure, a terminal receives a CSI-RS sent by a network device and can perform measurement and calculation based on the CSI-RS to determine the CSI.

[0302] In some embodiments, the terminal receives a CSI-RS sent by a network device on CSI-RS resources in N CSI-RS resource sets, or receives a CSI-RS sent by a network device on CSI-RS resources in N CSI-RS resource groups.

[0303] Among them, N CSI-RS resource sets or N CSI-RS resource groups correspond to N TRPs respectively.

[0304] In some embodiments, the terminal may determine the CSI by performing measurement and calculation based on the CSI-RS received from the network device and sent on CSI-RS resources in some or all of the N CSI-RS resource sets.

[0305] In some embodiments, the indication information sent by the terminal to the network device may indicate part or all of the N CSI-RS resource sets used by the terminal to determine CSI selection, and the terminal may report to the network device the selection of part or all of the TRPs to implement CJT.

[0306] In some embodiments, the terminal may determine the CSI by performing measurement and calculation based on the CSI-RS received from the network device on the CSI-RS resources in some or all of the N CSI-RS resource groups.

[0307] In some embodiments, the indication information sent by the terminal to the network device may indicate the terminal to determine part or all of the N CSI-RS resource groups selected for CSI selection, and the terminal may report to the network device the selection of part or all of the TRPs to implement CJT.

[0308] In the embodiment of the present disclosure, the terminal can accurately receive the CSI-RS sent by the network device on multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs based on multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs configured by the network device, predict the channel information at future times based on the channel information measured by the CSI-RS, and implement CSI feedback based on the channel information at future times. This can solve the problem of mismatch between the feedback CSI and the channel of the transmitted data caused by channel aging of fast-moving terminals, and can improve system performance.

[0309] In some embodiments, the terminal performs measurement calculations based on the CSI-RS to determine the CSI, including: determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource set, wherein the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets; or determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource group, wherein the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0310] In an embodiment of the present disclosure, the terminal may select a target CSI-RS resource set from N CSI-RS resource sets, or select a target CSI-RS resource group from N CSI-RS resource groups, and determine the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource set or the target CSI-RS resource group.

[0311] S206: The terminal sends the CSI to the network device.

[0312] In the embodiment of the present disclosure, the terminal may send CSI to the network device.

[0313] In some embodiments, the terminal performs measurement calculations based on the CSI-RS sent by the network device to determine the CSI. Furthermore, the terminal may send the CSI to the network device.

[0314] In some embodiments, the terminal sends indication information to the network device, indicating a target CSI-RS resource set selected from N CSI-RS resource sets, or indicating a target CSI-RS resource group selected from N CSI-RS resource groups.

[0315] It can be understood that N CSI-RS resource sets correspond to N TRPs, or N CSI-RS resource groups correspond to N TRPs, and the indication information reported by the terminal can indicate the TRP selected by the terminal.

[0316] In some embodiments, when the terminal sends indication information and CSI to the network device, the network device may be informed that the CSI sent by the terminal is determined by measurement and calculation based on the CSI-RS received by the terminal on the CSI-RS resources in the selected target CSI-RS resource set or target CSI-RS resource group.

[0317] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "code element", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0318] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0319] In some embodiments, terms such as "uplink", "uplink", "physical uplink", etc. can be used interchangeably, and terms such as "downlink", "downlink", "physical downlink", etc. can be used interchangeably.

[0320] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0321] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0322] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0323] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0324] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0325] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0326] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0327] The communication method involved in the embodiment of the present disclosure may include at least one of S201 to S206. For example, S201 can be implemented as an independent embodiment, S202 can be implemented as an independent embodiment, S203 can be implemented as an independent embodiment, S204 can be implemented as an independent embodiment, S205 can be implemented as an independent embodiment, S206 can be implemented as an independent embodiment, S201+S202 can be implemented as an independent embodiment, S201+S203 can be implemented as an independent embodiment, S201+S203+S204 can be implemented as an independent embodiment. Implementation, S201+S203+S204+S205 can be implemented as an independent embodiment, S201+S203+S204+S205+S206 can be implemented as an independent embodiment, S201+S202+S203 can be implemented as an independent embodiment, S201+S202+S203+S204 can be implemented as an independent embodiment, S201+S202+S203+S204+S205 can be implemented as an independent embodiment, but is not limited to this.

[0328] In some embodiments, S202 and S206 may be executed in an interchanged order or simultaneously.

[0329] In some embodiments, S202, S203, S204, S205, and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0330] In some embodiments, S203, S204, S205, and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0331] In some embodiments, S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0332] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0333] FIG3A is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a terminal and includes:

[0334] S301A, receiving configuration information.

[0335] Among them, the optional implementation of S301A can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0336] In some embodiments, the terminal receives configuration information sent by a network device, but is not limited thereto and may also receive configuration information sent by other entities.

[0337] In some embodiments, the terminal obtains configuration information specified by the protocol.

[0338] In some embodiments, the terminal obtains configuration information from upper layer(s).

[0339] In some embodiments, the terminal performs processing to obtain the configuration information.

[0340] In some embodiments, S301A is omitted, and the terminal autonomously implements the functions indicated by the configuration information, or the above functions are default or acquiescent.

[0341] In some embodiments, the name of the configuration information is not limited, and it can be, for example, "first information", "indication information", etc.

[0342] In some embodiments, the configuration information is used to indicate the CSI-RS resources configured by the network device for the terminal.

[0343] In some embodiments, the configuration information includes one or more CSI-RS resources.

[0344] In some embodiments, the configuration information includes N CSI-RS resource sets, each of the N CSI-RS resource sets includes at least one CSI-RS resource, and N is an integer greater than 1.

[0345] In some embodiments, the configuration information includes a CSI-RS resource set, where a CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0346] In some embodiments, N CSI-RS resource groups may correspond to N transmission reception points (TRPs). Thus, the network device may configure a terminal with multiple CSI-RS resource groups corresponding to the TRPs.

[0347] In some embodiments, N CSI-RS resource sets may correspond to N TRPs. Thus, the network device may configure a plurality of CSI-RS resource sets corresponding to the TRPs for the terminal.

[0348] In some embodiments, multiple TRPs can provide services to mobile terminals through coherent joint transmission (CJT).

[0349] For example, as shown in FIG3 , three TRPs are shown as a schematic diagram of providing services to mobile terminals through CJT.

[0350] In the embodiment of the present disclosure, the network device can configure multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs for the terminal.

[0351] Among them, on the one hand, the terminal can select the CSI-RS resource sets or CSI-RS resource groups corresponding to some or all of the TRPs based on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, and report to the network device to indicate the TRP selected by the terminal. On the other hand, the terminal can accurately receive the CSI-RS sent by the network device on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, predict the channel information at a future moment based on the channel information measured by the CSI-RS, and implement CSI feedback based on the channel information at a future moment, which can solve the problem of mismatch between the feedback CSI and the channel of the transmitted data caused by channel aging of the fast-moving terminal, and can improve system performance.

[0352] In the embodiment of the present disclosure, the network device can send configuration information to the terminal on its own, or can send configuration information to the terminal based on the terminal's request, or can send configuration information to the terminal based on specific circumstances agreed upon in the protocol. The embodiment of the present disclosure does not impose specific restrictions on this.

[0353] In some embodiments, the network device uses radio resource control (RRC) signaling to send configuration information to the terminal, or may also use downlink control information (DCI) to send configuration information to the terminal, or may also use a medium access control layer control element (MAC CE) to send configuration information to the terminal.

[0354] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources.

[0355] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are the same; and / or the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

[0356] In some embodiments, the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are the same; and / or the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

[0357] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0358] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different; and / or

[0359] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0360] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources. Different CSI-RS resource sets in the N CSI-RS resource sets have the same or different CSI-RS resource offset values.

[0361] In some embodiments, the periods of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and different periods satisfy an integer multiple relationship; or the offset values ​​of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and the difference between different offset values ​​is one time slot.

[0362] In some embodiments, all CSI-RS resources in one or N CSI-RS resource sets meet a specific condition, where the specific condition includes at least one of the following:

[0363] have the same density;

[0364] Have the same number of ports;

[0365] have the same bandwidth;

[0366] Have the same code division multiplexing CDM type;

[0367] Have the same time domain type.

[0368] In some embodiments, all CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets have the same antenna port with the same port index; or all CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups have the same antenna port with the same port index.

[0369] In some embodiments, different CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets are transmitted in different time slots; or different CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are transmitted in different time slots.

[0370] In some embodiments, the number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of the CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a first value; and / or

[0371] The number N of the N CSI-RS resource sets or N CSI-RS resource groups is greater than the first threshold and less than or equal to the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the second value; and / or

[0372] The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

[0373] In some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fourth value; and / or the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than the third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fifth value.

[0374] It should be noted that, for the relevant description of the content indicated by the above configuration information, please refer to the relevant description in the above embodiment, which will not be repeated here.

[0375] FIG3B is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a terminal and includes:

[0376] S301B, receive configuration information.

[0377] It should be noted that the optional implementation of S301B can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0378] It should be noted that the optional implementation of S301B can refer to the optional implementation of S301A in Figure 3A and other related parts in the embodiment involved in Figure 3A, and will not be repeated here.

[0379] S302B, send instruction information.

[0380] It should be noted that the optional implementation of S302B can refer to the optional implementation of S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0381] In some embodiments, the terminal sends indication information to the network device.

[0382] In an embodiment of the present disclosure, the terminal may send indication information to the network device. When the terminal receives configuration information sent by the network device, and the configuration information includes CSI-RS resources, the indication information may be used to instruct the terminal to select a target CSI-RS resource from the CSI-RS resources indicated by the configuration information.

[0383] The target CSI-RS resource may be all or part of the CSI-RS resources indicated by the configuration information.

[0384] In some embodiments, the terminal receives configuration information sent by a network device, where the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups.

[0385] In some embodiments, the configuration information includes N CSI-RS resource sets, and the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets.

[0386] The target CSI-RS resource set may be part or all of the N CSI-RS resource sets.

[0387] In some embodiments, the configuration information includes a CSI-RS resource set, which includes multiple CSI-RS resource groups, and the indication information is used to indicate the target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0388] The target CSI-RS resource group may be part or all of the N CSI-RS resource groups.

[0389] In some embodiments, N CSI-RS resource sets may correspond to N TRPs.

[0390] In some embodiments, N CSI-RS resource groups may correspond to N TRPs.

[0391] In some embodiments, N TRPs may provide services to the terminal through CJT.

[0392] In some embodiments, the indication information is used to indicate a target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or a target CSI-RS resource group selected from N CSI-RS resource groups.

[0393] In some embodiments, the terminal sends indication information to the network device, including: sending a bit map to the network device, wherein the bit map includes N bits, and specific values ​​of the N bits are used to indicate the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0394] The communication method involved in the embodiment of the present disclosure may include at least one of S301B to S302B. For example, S301B may be implemented as an independent embodiment, but is not limited thereto.

[0395] In some embodiments, S302B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0396] FIG3C is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a terminal and includes:

[0397] S301C, receiving configuration information.

[0398] It should be noted that the optional implementation of S301C can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0399] It should be noted that the optional implementation of S301C can refer to the optional implementation of S301A in Figure 3A and other related parts in the embodiment involved in Figure 3A, and will not be repeated here.

[0400] S302C, receiving a trigger message.

[0401] Among them, the optional implementation of S302C can refer to the optional implementation of S203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0402] In some embodiments, the terminal receives a trigger message sent by a network device, but is not limited thereto and may also receive a trigger message sent by other entities.

[0403] In some embodiments, the terminal obtains a trigger message specified by the protocol.

[0404] In some embodiments, the terminal obtains the trigger message from upper layer(s).

[0405] In some embodiments, the terminal performs processing to obtain a trigger message.

[0406] In some embodiments, S302C is omitted, and the terminal autonomously implements the function indicated by the trigger message, or the above function is default or acquiescent.

[0407] In some embodiments, the name of the trigger message is not limited, and it can be, for example, "first message", "trigger indication", etc.

[0408] In some embodiments, the terminal receives a trigger message sent by a network device, where the trigger message is used to instruct the network device to use a configured CSI-RS resource to send a CSI-RS to the terminal.

[0409] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS.

[0410] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource groups to send CSI-RS.

[0411] In some embodiments, the network device sends a trigger message to the terminal, including: sending M activation signals to the terminal, wherein the M activation signals are used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or to trigger the network device to use N CSI-RS resource groups to send CSI-RS, and M is an integer greater than 1 and less than N.

[0412] In some embodiments, the terminal receives a trigger message sent by a network device, including: receiving a trigger message sent by the network device, including: receiving an activation signaling sent by the network device, wherein the activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or to trigger the network device to use N CSI-RS resource groups to send CSI-RS; or receiving N activation signalings sent by the network device, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group in the N CSI-RS resource groups to send CSI-RS.

[0413] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are aperiodic CSI-RS resources, and the activation signaling is DCI; or

[0414] The CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or

[0415] The CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE; or

[0416] The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0417] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set, wherein the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource set or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0418] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource set.

[0419] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group, where the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource group or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0420] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource group.

[0421] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource set can be determined according to the sending time of the activation signaling for activating the CSI-RS resource set and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource set.

[0422] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource group can be determined based on the sending time of the activation signaling for activating the CSI-RS resource group and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource group.

[0423] In some embodiments, when there are N CSI-RS resource sets, each of which includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within two adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to two time slots.

[0424] In some embodiments, when there are N CSI-RS resource groups, each CSI-RS resource group includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within 2 adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to 2 time slots.

[0425] The communication method involved in the embodiment of the present disclosure may include at least one of S301C to S302C. For example, S301C may be implemented as an independent embodiment, but is not limited thereto.

[0426] In some embodiments, S302C is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0427] FIG3D is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG3D , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a terminal and includes:

[0428] S301D, receive configuration information.

[0429] S302D, receiving a trigger message.

[0430] Among them, the optional implementation methods of S301D to S302D can refer to the optional implementation methods of S201 and S203 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0431] Among them, the optional implementation methods of S301D to S302D can be found in other related parts of the embodiments involved in Figures 3A and 3C, and will not be repeated here.

[0432] S303D, receive CSI-RS.

[0433] Among them, the optional implementation of S303D can refer to the optional implementation of S204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0434] In some embodiments, the terminal receives a CSI-RS sent by a network device, but is not limited thereto and may also receive a CSI-RS sent by other entities.

[0435] In some embodiments, the terminal acquires the CSI-RS specified by the protocol.

[0436] In some embodiments, the terminal obtains the CSI-RS from upper layer(s).

[0437] In some embodiments, the terminal performs processing to obtain the CSI-RS.

[0438] In some embodiments, S303D is omitted, and the terminal autonomously implements the function indicated by the CSI-RS, or the above function is default or by default.

[0439] In some embodiments, the terminal receives the CSI-RS sent by the network device, and can receive the CSI-RS sent by the network device on the CSI-RS resources included in the configuration information, wherein the CSI-RS resources included in the configuration information include CSI-RS resources in N CSI-RS resource sets, or CSI-RS resources in N CSI-RS resource groups of a CSI-RS resource set.

[0440] S304D: Perform measurement and calculation based on the CSI-RS to determine the CSI.

[0441] Among them, the optional implementation of S304D can refer to the optional implementation of S205 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0442] In some embodiments, the terminal receives a CSI-RS sent by a network device, and then performs measurement and calculation based on the CSI-RS to determine the CSI.

[0443] In the embodiment of the present disclosure, the terminal can accurately receive the CSI-RS sent by the network device on multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs based on multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs configured by the network device, predict the channel information at future times based on the channel information measured by the CSI-RS, and implement CSI feedback based on the channel information at future times. This can solve the problem of mismatch between the feedback CSI and the channel of the transmitted data caused by channel aging of fast-moving terminals, and can improve system performance.

[0444] In some embodiments, the terminal performs measurement calculations based on the CSI-RS to determine the CSI, including: determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource set, wherein the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets; or determining the CSI based on the CSI-RS sent by the network device using the target CSI-RS resource group, wherein the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0445] S305D, send CSI.

[0446] Among them, the optional implementation of S305D can refer to the optional implementation of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0447] In some embodiments, the terminal may send CSI to the network device.

[0448] The communication method involved in the embodiments of the present disclosure may include at least one of S301D to S305D. For example, S301D may be implemented as an independent embodiment, S302D may be implemented as an independent embodiment, S303D may be implemented as an independent embodiment, S304D may be implemented as an independent embodiment, S305D may be implemented as an independent embodiment, S301D+S302D may be implemented as an independent embodiment, S301D+S302D+S303D may be implemented as an independent embodiment, and S301D+S302D+S303D+S304D may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0449] In some embodiments, S302D, S303D, S304D, and S305D are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0450] In some embodiments, S303D, S304D, and S305D are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0451] In some embodiments, S304D and S305D are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0452] In some embodiments, S304D is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0453] In some embodiments, S305D is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0454] FIG3E is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG3E , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a terminal and includes:

[0455] S301E, receiving configuration information.

[0456] S302E, receiving a trigger message.

[0457] S303E, receive CSI-RS.

[0458] S304E: Perform measurement and calculation based on the CSI-RS to determine the CSI.

[0459] Among them, the optional implementation methods of S301E to S304E can refer to the optional implementation methods of S201 and S203 to S205 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0460] S305E, send instruction information.

[0461] It should be noted that the optional implementation of S305E can refer to the optional implementation of S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0462] In some embodiments, the terminal sends indication information to the network device.

[0463] In an embodiment of the present disclosure, the terminal may send indication information to the network device. When the terminal receives configuration information sent by the network device, and the configuration information includes CSI-RS resources, the indication information may be used to instruct the terminal to select a target CSI-RS resource from the CSI-RS resources indicated by the configuration information.

[0464] The target CSI-RS resource may be all or part of the CSI-RS resources indicated by the configuration information.

[0465] In some embodiments, the terminal receives configuration information sent by a network device, where the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups.

[0466] In some embodiments, the configuration information includes N CSI-RS resource sets, and the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets.

[0467] The target CSI-RS resource set may be part or all of the N CSI-RS resource sets.

[0468] In some embodiments, the configuration information includes a CSI-RS resource set, which includes multiple CSI-RS resource groups, and the indication information is used to indicate the target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0469] S306E, send CSI.

[0470] Among them, the optional implementation of S306E can refer to the optional implementation of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0471] In some embodiments, the terminal sends indication information to the network device, indicating a target CSI-RS resource set selected from N CSI-RS resource sets, or indicating a target CSI-RS resource group selected from N CSI-RS resource groups.

[0472] It can be understood that N CSI-RS resource sets correspond to N TRPs, or N CSI-RS resource groups correspond to N TRPs, and the indication information reported by the terminal can indicate the TRP selected by the terminal.

[0473] In some embodiments, when the terminal sends indication information and CSI to the network device, the network device may be informed that the CSI sent by the terminal is determined by measurement and calculation based on the CSI-RS received by the terminal on the CSI-RS resources in the selected target CSI-RS resource set or target CSI-RS resource group.

[0474] The communication method involved in the embodiment of the present disclosure may include at least one of S301E to S306E. For example, S301E can be implemented as an independent embodiment, S302E can be implemented as an independent embodiment, S303E can be implemented as an independent embodiment, S304E can be implemented as an independent embodiment, S305E can be implemented as an independent embodiment, S306E can be implemented as an independent embodiment, S301E+S305E can be implemented as an independent embodiment, S301E+S302E can be implemented as an independent embodiment, S301E+S302E+S ...1E+S302E+S303E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301E+S305E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301E+S305E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301E+S305E can be implemented as an independent embodiment, S301E+S302E+S303E can be implemented as an independent embodiment, S301 301E+S302E+S303E+S304E can be implemented as an independent embodiment, S301E+S302E+S303E+S304E+S305E can be implemented as an independent embodiment, S301E+S302E+S305E can be implemented as an independent embodiment, S301E+S302E+S303E+S305E can be implemented as an independent embodiment, S301E+S302E+S303E+S304E+S305E can be implemented as an independent embodiment, but are not limited to this.

[0475] In some embodiments, S305E and S306E may be executed in an interchanged order or simultaneously.

[0476] In some embodiments, S302E, S303E, S304E, S305E, and S306E are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0477] In some embodiments, S303E, S304E, S305E, and S306E are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0478] In some embodiments, S305E is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0479] FIG4A is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a network device and includes:

[0480] S401A, sending configuration information.

[0481] Among them, the optional implementation of S401A can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0482] In some embodiments, the network device sends configuration information to the terminal, but is not limited thereto and may also send configuration information to other entities.

[0483] In some embodiments, the name of the configuration information is not limited, and it can be, for example, "first information", "indication information", etc.

[0484] In some embodiments, the configuration information is used to indicate the CSI-RS resources configured by the network device for the terminal.

[0485] In some embodiments, the configuration information includes one or more CSI-RS resources.

[0486] In some embodiments, the configuration information includes N CSI-RS resource sets, each of the N CSI-RS resource sets includes at least one CSI-RS resource, and N is an integer greater than 1.

[0487] In some embodiments, the configuration information includes a CSI-RS resource set, where a CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0488] In some embodiments, N CSI-RS resource groups may correspond to N transmission reception points (TRPs). Thus, the network device may configure a terminal with multiple CSI-RS resource groups corresponding to the TRPs.

[0489] In some embodiments, N CSI-RS resource sets may correspond to N TRPs. Thus, the network device may configure a plurality of CSI-RS resource sets corresponding to the TRPs for the terminal.

[0490] In some embodiments, multiple TRPs can provide services to mobile terminals through coherent joint transmission (CJT).

[0491] For example, as shown in FIG3 , three TRPs are shown as a schematic diagram of providing services to mobile terminals through CJT.

[0492] In the embodiment of the present disclosure, the network device can configure multiple CSI-RS resource sets or CSI-RS resource groups corresponding to multiple TRPs for the terminal.

[0493] Among them, on the one hand, the terminal can select the CSI-RS resource sets or CSI-RS resource groups corresponding to some or all of the TRPs based on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, and report to the network device to indicate the TRP selected by the terminal. On the other hand, the terminal can accurately receive the CSI-RS sent by the network device on the multiple CSI-RS resource sets or CSI-RS resource groups corresponding to the multiple TRPs configured by the network device, predict the channel information at a future moment based on the channel information measured by the CSI-RS, and implement CSI feedback based on the channel information at a future moment, which can solve the problem of mismatch between the feedback CSI and the channel of the transmitted data caused by channel aging of the fast-moving terminal, and can improve system performance.

[0494] In the embodiment of the present disclosure, the network device can send configuration information to the terminal on its own, or can send configuration information to the terminal based on the terminal's request, or can send configuration information to the terminal based on specific circumstances agreed upon in the protocol. The embodiment of the present disclosure does not impose specific restrictions on this.

[0495] In some embodiments, the network device uses radio resource control (RRC) signaling to send configuration information to the terminal, or may also use downlink control information (DCI) to send configuration information to the terminal, or may also use a medium access control layer control element (MAC CE) to send configuration information to the terminal.

[0496] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources.

[0497] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are the same; and / or the CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

[0498] In some embodiments, the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are the same; and / or the CSI-RS resources in a CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

[0499] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0500] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets among the N CSI-RS resource sets are the same or different; and / or

[0501] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each of the N CSI-RS resource sets is the same; and / or

[0502] The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources. Different CSI-RS resource sets in the N CSI-RS resource sets have the same or different CSI-RS resource offset values.

[0503] In some embodiments, the periods of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and different periods satisfy an integer multiple relationship; or the offset values ​​of CSI-RS resources are different between different CSI-RS resource sets of N CSI-RS resource sets, and the difference between different offset values ​​is one time slot.

[0504] In some embodiments, all CSI-RS resources in one or N CSI-RS resource sets meet a specific condition, where the specific condition includes at least one of the following:

[0505] have the same density;

[0506] Have the same number of ports;

[0507] have the same bandwidth;

[0508] Have the same code division multiplexing CDM type;

[0509] Have the same time domain type.

[0510] In some embodiments, all CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets have the same antenna port with the same port index; or all CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups have the same antenna port with the same port index.

[0511] In some embodiments, different CSI-RS resources in each CSI-RS resource set of N CSI-RS resource sets are transmitted in different time slots; or different CSI-RS resources in each CSI-RS resource group of N CSI-RS resource groups are transmitted in different time slots.

[0512] In some embodiments, the number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of the CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a first value; and / or

[0513] The number N of the N CSI-RS resource sets or N CSI-RS resource groups is greater than the first threshold and less than or equal to the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than the second value; and / or

[0514] The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than the second threshold, and the number of CSI-RS resource ports in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

[0515] In some embodiments, the number N of N CSI-RS resource sets or N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fourth value; and / or the number N of N CSI-RS resource sets or N CSI-RS resource groups is greater than the third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or N CSI-RS resource groups is not greater than a fifth value.

[0516] It should be noted that, for the relevant description of the content indicated by the above configuration information, please refer to the relevant description in the above embodiment, which will not be repeated here.

[0517] FIG4B is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a network device and includes:

[0518] S401B, sending configuration information.

[0519] It should be noted that the optional implementation of S401B can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0520] It should be noted that the optional implementation of S401B can refer to the optional implementation of S401A in Figure 4A and other related parts in the embodiment involved in Figure 4A, and will not be repeated here.

[0521] S402B, receiving instruction information.

[0522] It should be noted that the optional implementation of S402B can refer to the optional implementation of S202 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , and will not be described in detail here.

[0523] In some embodiments, the network device receives indication information sent by the terminal.

[0524] In an embodiment of the present disclosure, a network device receives indication information sent by a terminal. When the terminal receives configuration information sent by the network device, and the configuration information includes CSI-RS resources, the indication information can be used to instruct the terminal to select a target CSI-RS resource from the CSI-RS resources indicated by the configuration information.

[0525] The target CSI-RS resource may be all or part of the CSI-RS resources indicated by the configuration information.

[0526] In some embodiments, the network device sends configuration information to the terminal, where the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups.

[0527] In some embodiments, the configuration information includes N CSI-RS resource sets, and the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets.

[0528] The target CSI-RS resource set may be part or all of the N CSI-RS resource sets.

[0529] In some embodiments, the configuration information includes a CSI-RS resource set, which includes multiple CSI-RS resource groups, and the indication information is used to indicate the target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0530] The target CSI-RS resource group may be part or all of the N CSI-RS resource groups.

[0531] In some embodiments, N CSI-RS resource sets may correspond to N TRPs.

[0532] In some embodiments, N CSI-RS resource groups may correspond to N TRPs.

[0533] In some embodiments, N TRPs may provide services to the terminal through CJT.

[0534] In some embodiments, the indication information is used to indicate a target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or a target CSI-RS resource group selected from N CSI-RS resource groups.

[0535] In some embodiments, the network device receives indication information sent by the terminal, including: receiving a bit map sent by the terminal, wherein the bit map includes N bits, and specific values ​​of the N bits are used to indicate the target CSI-RS resource set selected by the terminal from N CSI-RS resource sets, or the target CSI-RS resource group selected from N CSI-RS resource groups.

[0536] The communication method involved in the embodiment of the present disclosure may include at least one of S401B to S402B. For example, S401B may be implemented as an independent embodiment, but is not limited thereto.

[0537] In some embodiments, S402B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0538] FIG4C is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a network device and includes:

[0539] S401C, sending configuration information.

[0540] It should be noted that, for the optional implementation of S401C, reference may be made to the optional implementation of S201 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0541] It should be noted that the optional implementation of S401C can refer to the optional implementation of S401A in Figure 4A and other related parts in the embodiment involved in Figure 4A, and will not be repeated here.

[0542] S402C: Send a trigger message.

[0543] Among them, the optional implementation of S402C can refer to the optional implementation of S203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0544] In some embodiments, the network device sends a trigger message to the terminal, but is not limited thereto, and the network device may also send a trigger message to other entities.

[0545] In some embodiments, the terminal receives a trigger message sent by a network device, where the trigger message is used to instruct the network device to use a configured CSI-RS resource to send a CSI-RS to the terminal.

[0546] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource sets to send CSI-RS.

[0547] In some embodiments, the trigger message is used to instruct the network device to use N CSI-RS resource groups to send CSI-RS.

[0548] In some embodiments, the network device sends a trigger message to the terminal, including: sending M activation signals to the terminal, wherein the M activation signals are used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or to trigger the network device to use N CSI-RS resource groups to send CSI-RS, and M is an integer greater than 1 and less than N.

[0549] In some embodiments, the network device sends a trigger message to the terminal, including: sending an activation signaling to the terminal, wherein the activation signaling is used to trigger the network device to use N CSI-RS resource sets to send CSI-RS, or is used to trigger the network device to use N CSI-RS resource groups to send CSI-RS; or sending N activation signaling to the terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set in the N CSI-RS resource sets to send CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group in the N CSI-RS resource groups to send CSI-RS.

[0550] In some embodiments, the CSI-RS resources in the N CSI-RS resource sets are aperiodic CSI-RS resources, and the activation signaling is DCI; or

[0551] The CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or

[0552] The CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE; or

[0553] The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

[0554] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set, wherein the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource set or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0555] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource set. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource set.

[0556] In some embodiments, the configuration information or trigger message sent by the network device to the terminal also includes an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group, where the specific CSI-RS resource can be the first CSI-RS resource in the CSI-RS resource group or can also be a CSI-RS resource negotiated between the terminal and the network device.

[0557] Wherein, when the trigger message includes one activation signaling, one activation signaling may include an offset value corresponding to a specific CSI-RS resource in each CSI-RS resource group. Where the trigger message includes N activation signalings, each activation signaling may include an offset value corresponding to a specific CSI-RS resource in the activated CSI-RS resource group.

[0558] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource set can be determined according to the sending time of the activation signaling for activating the CSI-RS resource set and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource set.

[0559] In some embodiments, the sending time of a specific CSI-RS resource in each CSI-RS resource group can be determined based on the sending time of the activation signaling for activating the CSI-RS resource group and the offset value corresponding to the specific CSI-RS resource in each CSI-RS resource group.

[0560] In some embodiments, when there are N CSI-RS resource sets, each of which includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within two adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to two time slots.

[0561] In some embodiments, when there are N CSI-RS resource groups, each CSI-RS resource group includes one non-periodic CSI-RS resource, and the N non-periodic CSI-RS resources need to be transmitted within 2 adjacent time slots, the interval between adjacent CSI-RS resources in the N non-periodic CSI-RS resources is greater than or equal to 2 time slots.

[0562] The communication method involved in the embodiment of the present disclosure may include at least one of S401C to S402C. For example, S401C may be implemented as an independent embodiment, but is not limited thereto.

[0563] In some embodiments, S402C is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0564] FIG4D is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG4D , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a network device and includes:

[0565] S401D, send configuration information.

[0566] S402D, sending a trigger message.

[0567] Among them, the optional implementation methods of S401D to S402D can refer to the optional implementation methods of S201 and S203 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0568] Among them, the optional implementation methods of S401D to S402D can be found in other related parts of the embodiments involved in Figures 4A and 4C, and will not be repeated here.

[0569] S403D, send CSI-RS.

[0570] Among them, the optional implementation of S403D can refer to the optional implementation of S204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0571] In some embodiments, the network device sends the CSI-RS to the terminal, but is not limited thereto and may also send the CSI-RS to other entities.

[0572] In some embodiments, the terminal receives the CSI-RS sent by the network device, and can receive the CSI-RS sent by the network device on the CSI-RS resources included in the configuration information, wherein the CSI-RS resources included in the configuration information include CSI-RS resources in N CSI-RS resource sets, or CSI-RS resources in N CSI-RS resource groups of a CSI-RS resource set.

[0573] S404D, receive CSI.

[0574] Among them, the optional implementation of S404D can refer to the optional implementation of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0575] In some embodiments, the network device may receive CSI sent by the terminal.

[0576] In some embodiments, the CSI is determined by measuring and calculating the CSI-RS sent by the terminal based on the network device using the target CSI-RS resource set, and the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets, or the CSI is determined by measuring and calculating the CSI-RS sent by the terminal based on the network device using the target CSI-RS resource group, and the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0577] The communication method involved in the embodiments of the present disclosure may include at least one of S401D to S404D. For example, S401D may be implemented as an independent embodiment, S402D may be implemented as an independent embodiment, S403D may be implemented as an independent embodiment, S404D may be implemented as an independent embodiment, S401D+S402D may be implemented as an independent embodiment, and S401D+S402D+S403D may be implemented as independent embodiments, but the present invention is not limited thereto.

[0578] In some embodiments, S402D, S403D, and S404D are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0579] In some embodiments, S403D and S404D are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0580] In some embodiments, S404D is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0581] FIG4E is a flow chart of a resource configuration method according to an embodiment of the present disclosure. As shown in FIG4E , the embodiment of the present disclosure relates to a resource configuration method, which is executed by a network device and includes:

[0582] S401E, send configuration information.

[0583] S402E: Send a trigger message.

[0584] S403E, send CSI-RS.

[0585] Among them, the optional implementation methods of S401E to S403E can refer to the optional implementation methods of S201 and S203 to S205 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0586] S404E, receiving instruction information.

[0587] It should be noted that, for the optional implementation of S404E, reference may be made to the optional implementation of S202 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0588] In some embodiments, the network device receives indication information sent by the terminal.

[0589] In an embodiment of the present disclosure, a network device receives indication information sent by a terminal. When the terminal receives configuration information sent by the network device, and the configuration information includes CSI-RS resources, the indication information can be used to instruct the terminal to select a target CSI-RS resource from the CSI-RS resources indicated by the configuration information.

[0590] The target CSI-RS resource may be all or part of the CSI-RS resources indicated by the configuration information.

[0591] In some embodiments, the terminal receives configuration information sent by a network device, where the configuration information is used to instruct the terminal to select resources from N CSI-RS resource sets or N CSI-RS resource groups.

[0592] In some embodiments, the configuration information includes N CSI-RS resource sets, and the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets.

[0593] The target CSI-RS resource set may be part or all of the N CSI-RS resource sets.

[0594] In some embodiments, the configuration information includes a CSI-RS resource set, which includes multiple CSI-RS resource groups, and the indication information is used to indicate the target CSI-RS resource group selected by the terminal from N CSI-RS resource groups.

[0595] S405E, receive CSI.

[0596] Among them, the optional implementation of S405E can refer to the optional implementation of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0597] In some embodiments, the network device receives CSI sent by the terminal, where the CSI is determined by the terminal through measurement and calculation based on the CSI-RS.

[0598] In some embodiments, the CSI is determined by measuring and calculating the CSI-RS sent by the terminal based on the network device using the target CSI-RS resource set, and the target CSI-RS resource set is selected by the terminal from N CSI-RS resource sets, or the CSI is determined by measuring and calculating the CSI-RS sent by the terminal based on the network device using the target CSI-RS resource group, and the target CSI-RS resource group is selected by the terminal from N CSI-RS resource groups.

[0599] In some embodiments, the network device receives indication information sent by the terminal, where the indication information is used to indicate a target CSI-RS resource set selected from N CSI-RS resource sets, or to indicate a target CSI-RS resource group selected from N CSI-RS resource groups.

[0600] It can be understood that N CSI-RS resource sets correspond to N TRPs, or N CSI-RS resource groups correspond to N TRPs, and the indication information reported by the terminal can indicate the TRP selected by the terminal.

[0601] In some embodiments, when the terminal sends indication information and CSI to the network device, the network device may be informed that the CSI sent by the terminal is determined by measurement and calculation based on the CSI-RS received by the terminal on the CSI-RS resources in the selected target CSI-RS resource set or target CSI-RS resource group.

[0602] The communication method involved in the embodiments of the present disclosure may include at least one of S401E to S405E. For example, S401E can be implemented as an independent embodiment, S402E can be implemented as an independent embodiment, S403E can be implemented as an independent embodiment, S404E can be implemented as an independent embodiment, and S405E can be implemented as an independent embodiment. S401E+S404E can be implemented as an independent embodiment, S401E+S402E can be implemented as an independent embodiment, S401E+S402E+S403E can be implemented as an independent embodiment, S401E+S402E+S403E can be implemented as an independent embodiment, and S401E+S402E+S403E+S404E can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0603] In some embodiments, S404E and S405E may be executed in an interchanged order or simultaneously.

[0604] In some embodiments, S402E, S403E, S404E, and S405E are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0605] In some embodiments, S403E, S404E, and S405E are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0606] In some embodiments, S404E is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0607] For single TRP terminals moving at medium to high speeds, Release 18 (Rel-18) multi-user multiple-input multiple-output (MU-MIMO) evolution enhancements support codebook-based CSI feedback through channel prediction. Channel prediction involves the terminal using an autoregressive or LMMSE algorithm to calculate channel information for one or more future moments based on channel information measured at multiple historical moments.

[0608] In some embodiments, a supporting network device (e.g., a gNB) configures a terminal with K = {4, 8, 12} aperiodic CSI-RS resources, or one periodic or semi-persistent CSI-RS resource, for measuring channel information at historical moments. The K aperiodic CSI-RS resources are grouped in a CSI-RS resource set. The interval between two adjacent aperiodic CSI-RS resources in the K aperiodic CSI-RS resources is m = {1, 2} slots. For aperiodic CSI-RS resources, the gNB determines the transmission time of the aperiodic CSI-RS based on the slot of the DCI 0_1 trigger and the offset value specified by the aperiodicTriggeringOffset configured via RRC signaling.

[0609] In order to increase edge coverage and improve the performance of edge users, it supports coherent joint transmission of multiple TRPs or panels, namely CJT, to serve one terminal. TRP When a TRP serves a terminal through CJT, the network device (such as gNB) needs to configure N TRP CSI-RS resources, this N TRP CSI-RS resources come from a CSI-RS resource set, each CSI-RS resource corresponds to a TRP, and N in a CSI-RS resource set TRP The CSI-RS resources can be sent in one slot or two adjacent slots.

[0610] The terminal determines whether to start from N according to the parameters configured by RRC signaling TRP Select all or part of the TRPs to implement CJT. If the configured parameters allow the terminal to select TRP, the CSI-RS resources corresponding to the candidate TRP are selected. The terminal reports a size of N TRP The bitmap indicates the selected CSI-RS resource.

[0611] When multiple TRPs or panels serve a terminal via CJT, the terminal implements CSI feedback based on channel information measured by CSI-RS. When a terminal served by multiple TRPs using CJT is moving at a medium-to-high speed (v), as shown in Figure 3, the fast-moving users increase the time-varying characteristics of the channel. If CSI feedback is still based on the measured channel, channel aging will occur, causing the fed-back CSI to mismatch the channel currently transmitting data, degrading system performance. To address channel aging, the terminal needs to implement CSI feedback based on predicted future channels. In CJT scenarios, how the terminal performs channel measurements on multiple TRPs to predict the future channels corresponding to the TRPs remains an unresolved issue.

[0612] In the embodiment of the present disclosure, by configuring multiple CSI-RS resource sets or a CSI-RS set including multiple CSI-RS resource groups, downlink channel measurements at multiple historical moments from multiple TRPs to the terminal are achieved, and the terminal calculates the channel at future moments to implement CSI feedback to solve the channel aging problem.

[0613] N TRP The number of TRPs served by the terminal through CJT is used as an example for explanation.

[0614] In some embodiments, the configuration information sent by the network device to the terminal indicates aperiodic CSI-RS resource configuration.

[0615] In one possible implementation, N TRP TRP configuration N TRP CSI-RS resource sets, each TRP is configured with a CSI-RS resource set, each CSI-RS resource set contains K non-periodic CSI-RS resources, where K ≥ 1 is a positive integer.

[0616] Trigger CSI-RS resource transmission mode 1: N TRP Each CSI-RS resource set is triggered by the same DCI trigger signaling. The position of the first transmitted CSI-RS resource in each CSI-RS resource set is determined by the trigger aperiodic CSI-RS offset value configured by the network device. For example, the DCI signaling time triggered by the network device and the configured offset value determine the aperiodic transmission time. The interval between adjacent CSI-RS resources is m slots. The first transmitted CSI-RS resource can be the minimum resource ID value or a CSI-RS resource determined by negotiation between the terminal and the network device.

[0617] Triggering CSI-RS resource transmission mode 2: N TRP The jth CSI-RS resource set is triggered by N>1 DCI trigger signaling. The position of the first transmitted CSI-RS resource in the jth CSI-RS resource set is determined by the nth DCI trigger and the offset value of the resource set. The interval between adjacent CSI-RS resources is m slots. Each of the N DCI trigger signaling triggers one CSI-RS resource set or multiple CSI-RS resource sets. When multiple CSI-RS resource sets are triggered, the CSI-RS resource set is predefined and specified according to negotiation between the terminal and the network device, or the CSI-RS resource set is determined according to the configuration of the network device.

[0618] In another possible implementation, N TRP Each TRP configures a CSI-RS resource set, and the CSI-RS resource set contains K·N TRPThe aperiodic CSI-RS resources are divided into N TRP Groups, each of which contains K non-periodic CSI-RS resources, and each group corresponds to a TRP. Let i = 1, ..., N TRP For k = 1, ..., K, (i-1)*K+k is defined as the kth aperiodic CSI-RS resource among the K CSI-RS resources configured in the i-th TRP or included in the i-th group. For the i-th CSI-RS resource group, the interval between two adjacent aperiodic CSI-RS resources is m slots, where m ≥ 1 is a positive integer.

[0619] Triggering CSI-RS resource transmission mode 3: K·N TRP The CSI-RS resources are triggered to be sent by the same trigger signaling, and the transmission position of the first CSI-RS resource in each CSI-RS group is determined according to the transmission time of the DCI that triggers the transmission of the CSI-RS of the group and the non-periodic CSI-RS transmission offset value configured in the group or for the CSI-RS resource set. Optionally, the first non-periodic CSI-RS resource transmission position of the designated CSI-RS resource group is determined according to the non-periodic CSI-RS transmission offset value configured for the CSI-RS resource set, and the first non-periodic CSI-RS of other resource groups is the non-periodic CSI-RS transmission offset value configured for the CSI-RS resource set plus n slots, n≥0. The designated CSI-RS resource group can be configured by the network device for the terminal, or can be predefined and determined by negotiation between the terminal and the network device. The transmission interval between adjacent CSI-RS resources in each group is m slots.

[0620] Mode 4 for triggering CSI-RS resource transmission: Similar to the above-mentioned mode 2 for triggering CSI-RS resource transmission, the resource set triggering transmission mode in mode 2 is also applied to the transmission of the CSI-RS group.

[0621] In some embodiments, if the above N TRP N aperiodic CSI-RS resource sets or aperiodic CSI-RS resource groups TRP When the non-periodic CSI-RS resources need to be transmitted in X = 2 adjacent slots, the interval between adjacent CSI-RS resources in each resource set or resource group is m ≥ 2 slots. TRP Aperiodic CSI-RS resources means that each resource set or resource group has an aperiodic CSI-RS resource transmission.

[0622] In some embodiments, the configuration information sent by the network device to the terminal indicates periodic or semi-persistent CSI-RS resource configuration.

[0623] In one possible implementation, NTRP TRP configuration N TRP CSI-RS resource sets, each CSI-RS resource set contains at least one periodic CSI-RS resource, or each CSI-RS resource set contains at least one semi-persistent CSI-RS resource. TRP The CSI-RS resources included in a CSI-RS resource set are configured in one slot or in two adjacent slots.

[0624] Semi-persistent CSI-RS triggers CSI-RS resource transmission mode, including:

[0625] Semi-persistent CSI-RS triggers CSI-RS resource transmission mode 1: N TRP The transmission of semi-persistent CSI-RS resources is activated through the same MAC-CE signaling or DCI for each CSI-RS resource set.

[0626] Semi-persistent CSI-RS triggers CSI-RS resource transmission mode 2: N TRP CSI-RS resource sets are passed through N TRP Different MAC-CE signaling or DCI activates the transmission of semi-persistent CSI-RS.

[0627] In some embodiments, the configuration information sent by the network device to the terminal, including the CSI-RS resources, must have the following characteristics:

[0628] N TRP All CSI-RS resources in ≥1 CSI-RS resource set have the same density, the same number of ports, the same bandwidth and / or CDM type. Optionally, N TRP The time domain type of ≥1 CSI-RS resource set is also the same. TRP When each resource set in the CSI-RS resource sets contains K>1 resources, the antenna ports with the same port index in the K CSI-RS resources are the same. TRP When each resource group in the CSI-RS resource groups contains K>1 resources, the antenna ports of the K CSI-RS resources with the same port index are the same.

[0629] For non-periodic CSI-RS resources, the above N TRP In ≥1 CSI-RS resource set or CSI-RS resource group, the spacing between adjacent CSI-RS resources in each resource set or resource group is the same, but the spacing between adjacent CSI-RS resources in different CSI-RS resource sets or CSI-RS resource groups can be the same or different;

[0630] For periodic or semi-persistent CSI-RS resources, N TRPFor each CSI-RS resource set with ≥ 1 CSI-RS resource sets, the CSI-RS resource period within each resource set is the same, but the CSI-RS resource periods between different CSI-RS resource sets may be the same or different. If the periods between CSI-RS resources are different, it is necessary to ensure that the periods between them satisfy an integer multiple relationship. N TRP For each CSI-RS resource set with ≥ 1 CSI-RS resource sets, the CSI-RS resource offset values within each resource set are the same, but the CSI-RS resource offset values between different CSI-RS resource sets may be the same or different. If the offset values between CSI-RS resources are different, the offset values between different CSI-RS resources differ by 1 slot.

[0631] Only one CSI-RS resource corresponding to one TRP is transmitted within each slot.

[0632] For a CSI-RS resource set or a CSI-RS resource group within a CSI-RS resource set that contains K CSI-RS resources, if K <= Kth1, each CSI-RS resource port is restricted to P1; if Kth1 < K <= Kth2, each CSI-RS resource port is restricted to P2; if K > Kth2, each CSI-RS resource port is restricted to P3.

[0633] In some embodiments, the terminal receives the configuration information sent by the network device, can select the CSI-RS resources from it, and report the indication information of the selected CSI-RS resources to the network device:

[0634] In some embodiments, the terminal determines whether it is necessary to select CSI-RS resources according to the parameters configured by the network side.

[0635] In some embodiments, if it is necessary to select some CSI-RS resources, the terminal uses a bitmap with a size of N TRP bits to indicate the selected CSI-RS resource set, or to indicate the selected CSI-RS resource group.

[0636] To facilitate understanding of the embodiments of the present disclosure, the following exemplary embodiments are provided.

[0637] In the exemplary embodiment, the configuration information sent by the network device (such as gNB) includes aperiodic CSI-RS resources as an example for illustration.

[0638] Suppose N TRP=3, the gNB configures 3 aperiodic CSI-RS resource sets for the terminal, each CSI-RS resource set contains K = 4 aperiodic CSI-RS resources. Each aperiodic CSI-RS resource in each resource set has the same density, the same number of ports, the same bandwidth and / or CDM type, and the antenna ports with the same port index are the same. In addition, the interval between two adjacent aperiodic CSI-RSs in each resource set is m = 2 slots. Among them, the first CSI-RS resource in the K = 4 aperiodic CSI-RS resources is determined by the offset parameter configured by the gNB to trigger the transmission of aperiodic CSI-RS. For example, if N TRP = 3. If one or more CSI-RS resource sets are configured with an offset value of 3 slots corresponding to the parameter aperiodicTriggeringOffset, the first CSI-RS resource is sent in the slot where the DCI trigger is located, and is sent in the slot where the DCI trigger is located after an offset of 3 slots. The first CSI-RS resource referred to here is the resource with the smallest ID among the K CSI-RS resources.

[0639] (Transmission mode 1) The gNB activates three CSI-RS resource sets simultaneously through one DCI trigger signaling. Each CSI-RS resource set is configured with a corresponding offset parameter value for transmitting aperiodic CSI-RS resources. The transmission time of the first CSI-RS resource in each resource set is determined according to the above method. Optionally,

[0640] (Transmission mode 2) gNB passes N=N TRP = 3 DCI trigger signalings are used to determine the transmission time of the first CSI-RS resource in the resource set. The three DCI transmission times can be the same or different. The first CSI-RS resource transmission time in each resource set is then determined based on the CSI-RS resource transmission offset parameter value configured for each CSI-RS resource set. After the first CSI-RS resource transmission time is determined in this manner, the remaining three CSI-RS resources in each resource set are transmitted sequentially, maintaining a spacing of m = 2 slots between adjacent CSI-RS resources within the resource set.

[0641] Optionally, the gNB configures a CSI-RS resource set (Alt2) for the terminal, which contains K·N TRP = 12 non-periodic CSI-RS resources. And these 12 resources are divided into N TRP = 3 groups, each group contains K = 4 non-periodic CSI-RS resources. For each TRP, there is a corresponding CSI-RS group, which is used to measure the channel information from the TRP to the terminal at different historical moments.

[0642] The gNB configures an aperiodic CSI-RS transmission offset parameter of 4 slots for each CSI-RS resource group. The first CSI-RS resource in these three resource groups is defined as indexed 0, 4, and 8, respectively, i.e., the CSI-RS resource with the smallest CSI-RS resource index within each group. Optionally, the first CSI-RS resource is the CSI-RS resource with the smallest resource ID within each group. Based on negotiation between the terminal and the gNB, the DCI transmission times for the CSI-RS resources in the first and second CSI-RS resource groups are offset by 4 slots, while the DCI transmission times for the CSI-RS resources in the third CSI-RS resource group are offset by 4 + n = 5 slots, where n = 1.

[0643] In the exemplary embodiment, the configuration information sent by the network device (e.g., gNB) includes the configuration of periodic or semi-persistent CSI-RS resources as an example for explanation.

[0644] Assume N TRP =3: The gNB configures three semi-persistent CSI-RS resource sets for the terminal. Each resource set contains one semi-persistent CSI-RS resource. The periodicity of different semi-persistent CSI-RS resources can be the same. Optionally, the periodicity of different semi-persistent CSI-RS resources can be different. For example, the periodicity of the first and second semi-persistent CSI-RS resource sets can be configured to be 8 slots, and the periodicity of the third semi-persistent CSI-RS resource set can be configured to be 4 slots. This means that the periodicity of different CSI-RS resources is 1x or 2x.

[0645] The offset values ​​of the different semi-persistent CSI-RS resources are the same, that is, the resources in the three resource sets can be sent in the same slot. Optionally, the offset value of the first and second semi-persistent CSI-RS resources is the same, which is 2 slots, while the offset value of the third CSI-RS resource is 3 slots.

[0646] These three semi-persistent resource sets can be activated simultaneously via the same MAC-CE signaling. The gNB configures these three resource sets for the UE with the same density, number of ports, bandwidth, and / or CDM type.

[0647] In an exemplary embodiment, the terminal selects a method for reporting indication information of CSI-RS resources.

[0648] Assume N TRP =3, the gNB configures an aperiodic CSI-RS resource set for the terminal, which contains K·N TRP= 12 CSI-RS resources, divided into three groups, each containing four CSI-RS resources. The terminal can predict future channel information based on the channels measured by these three groups of CSI-RS resources, then use the predicted channel information to calculate CSI. Finally, the terminal determines which group of CSI-RS resources to select based on the calculated CSI.

[0649] Assuming that the terminal selects the first and third CSI-RS resource groups based on the calculation results, the terminal indicates the selected CSI-RS resource group by reporting a 3-bit bitmap, as shown in Tables 1 and 2. A 1 in the table indicates that the terminal has selected the resource group. Otherwise, the CSI-RS resource in the group is not selected.

[0650] If the gNB configures N TRP For a non-periodic CSI-RS resource set, the terminal may also select a corresponding resource set based on the above method, and use the method in Table 1 and Table 2 to indicate the selected CSI-RS resource set.

[0651] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0652] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0653] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0654] FIG6A is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in FIG6A , the terminal 10 may include at least one of a transceiver module 11 and a processing module 12 .

[0655] In some embodiments, the above-mentioned transceiver module 11 is used to receive configuration information sent by a network device, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0656] The transceiver module 11 is configured to execute at least one of the communication steps (e.g., S201 to S206, but not limited thereto) such as sending and / or receiving performed by the terminal 10 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S201 to S206, but not limited thereto) performed by the terminal 10 in any of the above methods, and will not be described in detail here.

[0657] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0658] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0659] FIG6B is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in FIG6B , the network device 20 may include at least one of a transceiver module 21 and a processing module 22 .

[0660] In some embodiments, the above-mentioned transceiver module 21 is used to send configuration information to the terminal, wherein the configuration information includes one or N channel state information reference signal CSI-RS resource sets, one CSI-RS resource set includes N CSI-RS resource groups, each CSI-RS resource set of the N CSI-RS resource sets includes at least one CSI-RS resource, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

[0661] The transceiver module 21 is configured to execute at least one of the communication steps (e.g., S201 to S206, but not limited thereto) such as sending and / or receiving performed by the network device 20 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S201 to S206, but not limited thereto) performed by the network device 20 in any of the above methods, and will not be described in detail here.

[0662] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0663] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0664] Figure 7A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device, a terminal (e.g., user equipment), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0665] As shown in Figure 7A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0666] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0667] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, S201 to S206, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, S201 to S206, but not limited thereto).

[0668] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0669] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0670] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0671] 7B is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7B , but the present disclosure is not limited thereto.

[0672] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0673] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0674] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, S201 to S206, but not limited to these), and the processor 8201 performs at least one of the other steps (for example, S201 to S206, but not limited to these).

[0675] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0676] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0677] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0678] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0679] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0680] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0681] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0682] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A resource configuration method, characterized in that: The method is executed by a terminal, and includes: Receive configuration information sent by network devices, including The configuration information includes a channel state information reference signal CSI-RS resource set, the CSI-RS resource set includes N CSI-RS resource groups, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource; or The configuration information includes N CSI-RS resource sets, each of the N CSI-RS resource sets includes at least one CSI-RS resource, Wherein, N is an integer greater than 1.

2. The method according to claim 1, characterized in that The configuration information is used to instruct the terminal to select a resource from the N CSI-RS resource sets or the N CSI-RS resource groups, and the method further includes: Send indication information to the network device, wherein the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets, or a target CSI-RS resource group selected from the N CSI-RS resource groups.

3. The method according to claim 2, characterized in that The sending the indication information to the network device includes: A bitmap is sent to the network device, wherein the bitmap includes N bits, and specific values ​​of the N bits are used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets, or a target CSI-RS resource group selected from the N CSI-RS resource groups of the one CSI-RS resource set.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: receiving a trigger message sent by the network device, wherein the trigger message is used to instruct the network device to use the N CSI-RS resource sets to send CSI-RS, or; The trigger message is used to instruct the network device to use N CSI-RS resource groups of the one CSI-RS resource set to send CSI-RS; According to the trigger message, the CSI-RS sent by the network device is received.

5. The method according to claim 4, characterized in that The method further comprises: Perform measurement and calculation according to the CSI-RS to determine channel state information CSI; The CSI is sent to the network device.

6. The method according to claim 5, characterized in that The performing measurement and calculation according to the CSI-RS to determine the CSI includes: determining the CSI according to the CSI-RS sent by the network device using a target CSI-RS resource set, wherein the target CSI-RS resource set is selected by the terminal from the N CSI-RS resource sets; or The CSI is determined according to the CSI-RS sent by the network device using a target CSI-RS resource group, wherein the target CSI-RS resource group is selected by the terminal from the N CSI-RS resource groups.

7. The method according to any one of claims 4 to 6, characterized in that The receiving a trigger message sent by the network device includes: receiving an activation signaling sent by the network device, wherein the activation signaling is used to trigger the network device to use the N CSI-RS resource sets to send the CSI-RS, or is used to trigger the network device to use the N CSI-RS resource groups to send the CSI-RS; or Receive N activation signalings sent by the network device, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set among the N CSI-RS resource sets to send the CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group among the N CSI-RS resource groups to send the CSI-RS.

8. The method according to claim 7, characterized in that The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the activation signaling is downlink control information DCI; or The CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or The CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or media MAC CE; or The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

9. The method according to any one of claims 1 to 7, characterized in that The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, periodic CSI-RS resources or the semi-persistent CSI-RS resources; or The CSI-RS resources in the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, periodic CSI-RS resources, or semi-persistent CSI-RS resources.

10. The method according to claim 9, characterized in that The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are the same; and / or The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

11. The method according to claim 9, characterized in that The CSI-RS resources of the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups are the same; and / or The CSI-RS resources of the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, and intervals between adjacent CSI-RS resources of different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

12. The method according to claim 9, characterized in that The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset values ​​of the CSI-RS resources are the same or different between different CSI-RS resource sets in the N CSI-RS resource sets.

13. The method according to claim 12, characterized in that Different CSI-RS resource sets among the N CSI-RS resource sets have different periods of CSI-RS resources, and different periods satisfy an integer multiple relationship; or Different CSI-RS resource sets among the N CSI-RS resource sets have different offset values ​​of CSI-RS resources, and the difference between different offset values ​​is one time slot.

14. The method according to any one of claims 1 to 13, characterized in that All CSI-RS resources in the CSI-RS resource set meet a specific condition, wherein the specific condition includes at least one of the following: have the same density; Have the same number of ports; have the same bandwidth; Have the same code division multiplexing CDM type; Have the same time domain type.

15. The method according to any one of claims 1 to 14, characterized in that The antenna ports for all CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets having the same port index are the same; or the antenna ports for all CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups having the same port index are the same.

16. The method according to any one of claims 1 to 15, characterized in that Different CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are transmitted in different time slots respectively; or Different CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups are transmitted in different time slots respectively.

17. The method according to any one of claims 1 to 16, characterized in that The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a first value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a first threshold and less than or equal to a second threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a second value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a second threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

18. The method according to any one of claims 1 to 16, characterized in that The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a fourth value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a fifth value.

19. A resource allocation method, characterized in that: The method is performed by a network device and includes: Sending configuration information to a terminal, wherein the configuration information includes a CSI-RS resource set, the CSI-RS resource set includes N CSI-RS resource groups, and each CSI-RS resource group of the N CSI-RS resource groups includes at least one CSI-RS resource; or The configuration information includes N CSI-RS resources, each of the N CSI-RS resource sets includes at least one CSI-RS resource, Wherein, N is an integer greater than 1.

20. The method of claim 19, wherein: The configuration information is used to instruct the terminal to select a resource from the N CSI-RS resource sets or the N CSI-RS resource groups, and the method further includes: receiving indication information sent by the terminal, wherein the indication information is used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets, or a target CSI-RS resource group selected from the N CSI-RS resource groups.

21. The method of claim 20, wherein: The receiving the indication information sent by the terminal includes: Receive a bit map sent by the terminal, wherein the bit map includes N bits, and specific values ​​of the N bits are used to indicate a target CSI-RS resource set selected by the terminal from the N CSI-RS resource sets, or a target CSI-RS resource group selected from the N CSI-RS resource groups of the one CSI-RS resource set.

22. The method according to any one of claims 19 to 21, characterized in that The method further comprises: sending a trigger message to the terminal, wherein the trigger message is used to instruct the network device to use the N CSI-RS resource sets to send CSI-RS, or The trigger message is used to instruct the network device to use N CSI-RS resource groups of the one CSI-RS resource set to send CSI-RS; The CSI-RS is sent to the terminal.

23. The method of claim 22, wherein: The method further comprises: and receiving CSI sent by the terminal, wherein the CSI is determined by the terminal through measurement and calculation according to the CSI-RS.

24. The method of claim 23, wherein: The CSI is determined by measuring and calculating according to the CSI-RS sent by the terminal using the target CSI-RS resource set, and the target CSI-RS resource set is selected by the terminal from the N CSI-RS resource sets; or the CSI is determined by measuring and calculating according to the CSI-RS sent by the terminal using the target CSI-RS resource group, and the target CSI-RS resource group is selected by the terminal from the N CSI-RS resource groups.

25. The method according to any one of claims 22 to 24, characterized in that The sending a trigger message to the terminal includes: Sending an activation signaling to the terminal, wherein the activation signaling is used to trigger the network device to use the N CSI-RS resource sets to send the CSI-RS, or is used to trigger the network device to use the N CSI-RS resource groups to send the CSI-RS; or N activation signalings are sent to the terminal, wherein the N activation signalings are respectively used to trigger the network device to use one CSI-RS resource set among the N CSI-RS resource sets to send the CSI-RS, or are respectively used to trigger the network device to use one CSI-RS resource group among the N CSI-RS resource groups to send the CSI-RS.

26. The method of claim 25, wherein: The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the activation signaling is DCI; or The CSI-RS resources in the N CSI-RS resource groups are non-periodic CSI-RS resources, and the activation signaling is DCI; or The CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources, and the activation signaling is DCI or a media access control layer control element MAC CE; or The CSI-RS resources in the N CSI-RS resource groups are semi-persistent CSI-RS resources, and the activation signaling is DCI or MAC CE.

27. The method according to any one of claims 19 to 25, characterized in that The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources, or the CSI-RS resources in the N CSI-RS resource sets are semi-persistent CSI-RS resources; The CSI-RS resources of the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, or the CSI-RS resources in the one CSI-RS resource set are periodic CSI-RS resources, or the CSI-RS resources in the one CSI-RS resource set are semi-persistent CSI-RS resources.

28. The method of claim 27, wherein: The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets are the same; and / or The CSI-RS resources in the N CSI-RS resource sets are non-periodic CSI-RS resources, and intervals between adjacent CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different.

29. The method of claim 27, wherein: The CSI-RS resources of the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, and the intervals between adjacent CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups are the same; and / or The CSI-RS resources of the N CSI-RS resource groups in the one CSI-RS resource set are non-periodic CSI-RS resources, and intervals between adjacent CSI-RS resources of different CSI-RS resource groups of the N CSI-RS resource groups are the same or different.

30. The method of claim 27, wherein: The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the period of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the periods of the CSI-RS resources in different CSI-RS resource sets of the N CSI-RS resource sets are the same or different; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset value of the CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets is the same; and / or The CSI-RS resources in the N CSI-RS resource sets are periodic CSI-RS resources or semi-persistent CSI-RS resources, and the offset values ​​of the CSI-RS resources are the same or different between different CSI-RS resource sets in the N CSI-RS resource sets.

31. The method of claim 30, wherein: Different CSI-RS resource sets among the N CSI-RS resource sets have different periods of CSI-RS resources, and different periods satisfy an integer multiple relationship; or Different CSI-RS resource sets among the N CSI-RS resource sets have different offset values ​​of CSI-RS resources, and the difference between different offset values ​​is one time slot.

32. The method according to any one of claims 19 to 31, characterized in that All CSI-RS resources in the one or N CSI-RS resource sets meet a specific condition, wherein the specific condition includes at least one of the following: have the same density; Have the same number of ports; have the same bandwidth; Have the same code division multiplexing CDM type; Have the same time domain type.

33. The method according to any one of claims 19 to 32, characterized in that The antenna ports for all CSI-RS resources in each CSI-RS resource set of the N CSI-RS resource sets having the same port index are the same; or the antenna ports for all CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups having the same port index are the same.

34. The method according to any one of claims 19 to 33, characterized in that Different CSI-RS resources in each of the N CSI-RS resource sets are transmitted in different time slots respectively; or Different CSI-RS resources in each CSI-RS resource group of the N CSI-RS resource groups are transmitted in different time slots respectively.

35. The method according to any one of claims 19 to 34, characterized in that The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a first threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a first value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a first threshold and less than or equal to a second threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a second value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a second threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a third value.

36. The method according to any one of claims 19 to 34, characterized in that The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is less than or equal to a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a fourth value; and / or The number N of the N CSI-RS resource sets or the N CSI-RS resource groups is greater than a third threshold, and the number of ports of CSI-RS resources in the N CSI-RS resource sets or the N CSI-RS resource groups is not greater than a fifth value.

37. A resource allocation method, characterized in that: include: The network device sends configuration information to the terminal, wherein the configuration information includes one or N CSI-RS resource sets, the one CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource sets includes at least one CSI-RS resource, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1. The terminal receives the configuration information sent by the network device.

38. A terminal, characterized in that: include: A transceiver module, used to receive configuration information sent by a network device, wherein the configuration information includes one or N CSI-RS resource sets, the one CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource sets includes at least one CSI-RS resource, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

39. A network device, characterized in that: include: A transceiver module, used to send configuration information to a terminal, wherein the configuration information includes one or N CSI-RS resource sets, the one CSI-RS resource set includes N CSI-RS resource groups, each of the N CSI-RS resource sets includes at least one CSI-RS resource, each of the N CSI-RS resource groups includes at least one CSI-RS resource, and N is an integer greater than 1.

40. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the method according to any one of claims 1 to 18.

41. A network device, characterized in that: include: one or more processors; Wherein, the network device is used to execute the method described in any one of claims 19 to 36.

42. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 18, and the network device is configured to implement the method according to any one of claims 19 to 36.

43. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 18 and 19 to 36.

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