Communication method and communication apparatus

Abstract

Provided in the present application is a communication method. The method comprises: a terminal device receiving a first message and a second message from a network device, wherein the first message instructs the terminal device to receive a first signal, the second message indicates a first resource set comprising a first resource and a second resource, a time domain resource of the first resource is located on a subband full duplex (SBFD) time unit, and a time domain resource of the second resource is located on a non-SBFD time unit. In addition, the terminal device receives the first signal on resources other than the first resource and the second resource.

Description

A communication method and a communication device

[0001] This application claims priority to Chinese Patent Application No. 202311550941.8, filed on November 17, 2023, entitled "A Communication Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, specifically to a communication method and a communication device. Background Technology

[0003] Time division duplex (TDD) is widely used in the deployment of new radio (NR) wireless communication systems in the fifth generation (5G) mobile communication system. Limited uplink time domain resource allocation leads to reduced uplink coverage and increased latency in TDD. One possible method to enhance uplink coverage is to employ subband full duplex (SBFD). SBFD divides the frequency band on a downlink symbol into one or more uplink subbands and one or more downlink subbands, allowing uplink transmission on the uplink subband of the downlink symbol.

[0004] Specifically, the antenna configuration for SBFD network equipment includes the following: the number of transceiver units (TxRUs) differs between SBFD and non-SBFD time units; the channel environment and interference environment differ between SBFD and non-SBFD time units; and the terminal equipment needs to measure and report channel state information (CSI) for SBFD time units and downlink (or flexible) time units respectively. Therefore, determining the time-frequency resources that are not used for receiving or transmitting signals under this antenna configuration scenario becomes an urgent problem to be solved.

[0005] Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides a communication method and a communication device, aiming to identify time-frequency resources that cannot be used for receiving or transmitting signals in scenarios where the channel environment and interference environment differ between SBFD and non-SBFD time units.

[0007] Firstly, a communication method is provided. This method can be executed by a terminal device, a chip, or a circuit, etc., and this application does not limit it in this regard.

[0008] The communication method includes: receiving a first message indicating the reception of a first signal; receiving a second message indicating a first resource set containing a first resource and a second resource, wherein the time-domain resources of the first resource are located on SBFD time units and the time-domain resources of the second resource are located on non-SBFD time units; and receiving the first signal on resources other than the first resource and the second resource.

[0009] Based on the above technical solution, taking a terminal device as the executing entity as an example, the terminal device receives a first message and a second message. The first message instructs the terminal device to receive a first signal, and the second message instructs a first resource set containing the first and second resources. The terminal device can receive the first signal on resources other than the first and second resources (e.g., receiving the physical downlink shared channel (PDSCH)). Specifically, the time-frequency resources of the first resource are located on the SBFD time unit, and the time-frequency resources of the second resource are located on a non-SBFD time unit. This can be understood as follows: in this technical solution, the network device can configure relevant resources for the SBFD time unit and the non-SBFD time unit respectively through the second message. This allows for the configuration of required resources on different time units under different channel and interference environments on the SBFD and non-SBFD time units, improving the flexibility of resource configuration and allowing the identification of time-frequency resources that cannot be used for receiving or transmitting signals based on the configured resources.

[0010] In conjunction with the first aspect, in certain implementations of the first aspect, the first resource set includes one or more of the following: two periodic zero-power channel state information reference signal (ZP CSI-RS) resource sets, two semi-persistent ZP CSI-RS resource set tables, or two aperiodic ZP CSI-RS resource set tables. The two periodic ZP CSI-RS resource sets include a first periodic ZP CSI-RS resource set and a second periodic ZP CSI-RS resource set. The two semi-persistent ZP CSI-RS resource set tables include a first semi-persistent ZP CSI-RS resource set table and a second semi-persistent ZP CSI-RS resource set table. The two aperiodic ZP CSI-RS resource set tables include a first aperiodic ZP CSI-RS resource set table and a second aperiodic ZP CSI-RS resource set table. The first resource is included in the first periodic ZP CSI-RS resource set, and the second resource is included in the second periodic ZP CSI-RS resource set; or, the first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table. CSI-RS resource set table; or, the first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table.

[0011] Based on the above technical solution, in order to configure relevant resources for SBFD and non-SBFD time units respectively, the network device can configure one or more of the following via the second message: two periodic zero-power channel state information reference signal (ZP CSI-RS) resource sets, two semi-persistent ZP CSI-RS resource set tables, or two aperiodic ZP CSI-RS resource set tables. The number of ZP CSI-RS resources included in each ZP CSI-RS resource set is the same as the current number of ZP CSI-RS resources included in the ZP CSI-RS resource set. Compared to existing ZP CSI-RS resource configuration methods (configuring one or more of the following: a periodic zero-power channel state information reference signal (ZP CSI-RS) resource set, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table), this technical solution is equivalent to expanding the number of ZP CSI-RS resources by configuring multiple ZP CSI-RS resource set tables, so that the number of ZP CSI-RS resources meets the requirements for both SBFD and non-SBFD time units.

[0012] In conjunction with the first aspect, in certain implementations of the first aspect, if the first resource is included in the first semi-persistent ZP CSI-RS resource set table and the second resource is included in the second semi-persistent ZP CSI-RS resource set table, then the method further includes: receiving a third message, the third message including a first field and a second field, wherein the first field activates the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, the first field deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0013] Based on the above technical solution, if the first resource and the second resource are resources in the semi-persistent ZP CSI-RS resource set table, the network device can activate the semi-persistent ZP CSI-RS resource set through the third message.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, if the first resource is included in the first semi-persistent ZP CSI-RS resource set table and the second resource is included in the second semi-persistent ZP CSI-RS resource set table, then the method further includes: receiving a third message #1, the third message #1 including a first field #1, the first field #1 activating the first resource in the first semi-persistent ZP CSI-RS resource set table and activating the second resource in the second semi-persistent ZP CSI-RS resource set table; or, the first field #1 deactivating the third resource in the first semi-persistent ZP CSI-RS resource set table and deactivating the fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the third message includes a media access control (MAC) control element (CE).

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the MAC CE includes a first bit and a second bit. If the first bit takes a first value, it indicates that the activation or deactivation of the ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table or the second semi-persistent ZP CSI-RS resource set table is determined according to the second bit; or, if the first bit takes a second value, it indicates that the activation or deactivation of the ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table and the second semi-persistent ZP CSI-RS resource set table is determined according to the second bit.

[0017] In conjunction with the first aspect, in some implementations of the first aspect, if the first resource is included in the first aperiodic ZP CSI-RS resource set table and the second resource is included in the second aperiodic ZP CSI-RS resource set table, then the method further includes: receiving a fourth message, the fourth message including a third field and a fourth field, the third field triggering the first resource in the first aperiodic ZP CSI-RS resource set table, and the fourth field triggering the second resource in the second aperiodic ZP CSI-RS resource set table.

[0018] Based on the above technical solution, if the first resource and the second resource are resources in the non-periodic ZP CSI-RS resource set table, the network device can trigger the non-periodic ZP CSI-RS resource set through the fourth message.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, if the first resource is included in the first aperiodic ZP CSI-RS resource set table and the second resource is included in the second aperiodic ZP CSI-RS resource set table, then the method further includes: the terminal device receiving a fourth message #1 from the network device, the fourth message #1 including a third field #1, the third field #1 triggering the first resource in the first aperiodic ZP CSI-RS resource set table and the second resource in the second aperiodic ZP CSI-RS resource set table.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the fourth message includes downlink control information (DCI).

[0021] In conjunction with the first aspect, in some implementations of the first aspect, the DCI includes a first bit and a second bit. If the first bit takes a first value, it indicates that the ZP CSI-RS resource set in the first aperiodic ZP CSI-RS resource set table or the second aperiodic ZP CSI-RS resource set table is triggered based on the value of the second bit; or, if the first bit takes a second value, it indicates that the ZP CSI-RS resource set in both the first aperiodic ZP CSI-RS resource set table and the second aperiodic ZP CSI-RS resource set table is triggered.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the first resource set includes one or more of the following: a periodic non-zero power channel state information reference signal (ZP CSI-RS) resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table, wherein the periodic ZP CSI-RS resource set table includes less than or equal to 2 ZP CSI-RS resource sets, the semi-persistent ZP CSI-RS resource set table includes less than or equal to 32 ZP CSI-RS resource sets, and the aperiodic ZP CSI-RS resource set table includes less than or equal to 6 or 7 ZP CSI-RS resource sets.

[0023] Based on the above technical solution, in order to configure relevant resources for SBFD and non-SBFD time units respectively, the network device can configure one or more of the following through a second message: a periodic non-zero power channel state information reference signal ZP CSI-RS resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table. Each ZP CSI-RS resource set table includes more ZP CSI-RS resource sets than the current number of ZP CSI-RS resource sets. This technical solution is equivalent to expanding the number of ZP CSI-RS resources by configuring a ZP CSI-RS resource set table with a larger number of ZP CSI-RS resource sets, so that the number of ZP CSI-RS resources meets the requirements for both SBFD and non-SBFD time units.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, if the first resource and the second resource are included in the semi-persistent ZP CSI-RS resource set table, the method further includes: receiving a fifth message, the fifth message including a fifth field and a sixth field, the fifth field activating the first resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field activating the second resource in the semi-persistent ZP CSI-RS resource set table; or, the fifth field deactivating the third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivating the fourth resource in the semi-persistent ZP CSI-RS resource set table.

[0025] In conjunction with the first aspect, in some implementations of the first aspect, the length of the fifth field and the length of the sixth field are both 5 bits.

[0026] In conjunction with the first aspect, in some implementations of the first aspect, if the first resource and the second resource are included in the ZP CSI-RS resource set table, the method further includes: receiving a sixth message, the sixth message including a seventh field and an eighth field, the seventh field triggering the first resource in the aperiodic ZP CSI-RS resource set table, and the eighth field triggering the second resource in the aperiodic ZP CSI-RS resource set table.

[0027] In conjunction with the first aspect, in some implementations of the first aspect, the first resource set includes one or more of the following: a periodic ZP CSI-RS resource set, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table, each of the ZP CSI-RS resource sets including less than or equal to 32 ZP CSI-RS resources.

[0028] Based on the above technical solution, in order to configure relevant resources for SBFD time units and non-SBFD time units respectively, the network device can configure one or more of the following through a second message: a periodic non-zero power channel state information reference signal ZP CSI-RS resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table. Each ZP CSI-RS resource set includes more ZP CSI-RS resources than the current ZP CSI-RS resource set. This technical solution is equivalent to expanding the number of ZP CSI-RS resources by configuring a ZP CSI-RS resource set with a larger number of ZP CSI-RS resources, so that the number of ZP CSI-RS resources meets the requirements for both SBFD and non-SBFD time units.

[0029] In conjunction with the first aspect, in some implementations of the first aspect, the first resource set includes one or more of the following: a periodic non-zero power channel state information reference signal (ZP CSI-RS) resource set, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table, wherein each ZP CSI-RS resource set includes less than or equal to 16 ZP CSI-RS resources, and each ZP CSI-RS resource includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource, wherein the first resource belongs to the first ZP CSI-RS sub-resource, and the second resource belongs to the second ZP CSI-RS sub-resource.

[0030] Based on the above technical solution, in order to configure relevant resources for SBFD time units and non-SBFD time units respectively, the network device can configure one or more of the following through a second message: a periodic non-zero power channel state information reference signal ZP CSI-RS resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table. Each ZP CSI-RS resource includes two or more sub-resources. This technical solution is equivalent to expanding the number of ZP CSI-RS resources by configuring ZP CSI-RS resources with a large number of ZP CSI-RS sub-resources, so that the number of ZP CSI-RS resources meets the requirements of both SBFD and non-SBFD time units.

[0031] In conjunction with the first aspect, in some implementations of the first aspect, the first ZP CSI-RS sub-resource or the second ZP CSI-RS sub-resource includes at least one of the following parameters: resource mapping parameter, period, or bias parameter.

[0032] Secondly, a communication method is provided. This method can be executed by a network device, a chip, or a circuit, etc., and this application does not limit it in this regard.

[0033] The communication method includes: sending a first message indicating receipt of a first signal; sending a second message indicating a first resource set containing a first resource and a second resource, wherein the time-domain resources of the first resource are located on SBFD time units and the time-domain resources of the second resource are located on non-SBFD time units; and sending the first signal on resources other than the first resource and the second resource.

[0034] Specifically, the possible forms of the first resource set can be found in the description of the first resource set in the first aspect, and will not be repeated here.

[0035] For example, the first resource set includes two semi-persistent ZP CSI-RS resource set tables, which include a first semi-persistent ZP CSI-RS resource set table and a second semi-persistent ZP CSI-RS resource set table. If the first resource is included in the first semi-persistent ZP CSI-RS resource set table and the second resource is included in the second semi-persistent ZP CSI-RS resource set table, the method further includes: sending a third message, which includes a first field and a second field. The first field activates the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, the first field deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0036] For example, the first resource set includes two aperiodic ZP CSI-RS resource set tables, namely a first aperiodic ZP CSI-RS resource set table and a second aperiodic ZP CSI-RS resource set table. If the first resource is included in the first aperiodic ZP CSI-RS resource set table and the second resource is included in the second aperiodic ZP CSI-RS resource set table, then the method further includes: sending a fourth message, wherein the fourth message includes a third field and a fourth field, the third field triggering the first resource in the first aperiodic ZP CSI-RS resource set table and the fourth field triggering the second resource in the second aperiodic ZP CSI-RS resource set table.

[0037] For example, the first resource set includes a semi-persistent ZP CSI-RS resource set table, which includes less than or equal to 32 ZP CSI-RS resource sets. If the first resource and the second resource are included in the semi-persistent ZP CSI-RS resource set table, the method further includes: sending a fifth message, which includes a fifth field and a sixth field, wherein the fifth field activates the first resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field activates the second resource in the semi-persistent ZP CSI-RS resource set table; or, the fifth field deactivates the third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates the fourth resource in the semi-persistent ZP CSI-RS resource set table.

[0038] For example, the first resource set includes an aperiodic ZP CSI-RS resource set table, which includes 6 or 7 ZP CSI-RS resource sets. If the first resource and the second resource are included in the aperiodic ZP CSI-RS resource set table, the method further includes: sending a sixth message, which includes a seventh field and an eighth field, wherein the seventh field triggers the first resource in the aperiodic ZP CSI-RS resource set table, and the eighth field triggers the second resource in the aperiodic ZP CSI-RS resource set table.

[0039] The technical effects of the methods shown in the second aspect and its possible designs above can be referred to the technical effects in the first aspect and its possible designs.

[0040] Thirdly, a communication method is provided. This method can be executed by a terminal device, a chip, or a circuit, etc., and this application does not limit it in this regard.

[0041] The communication method includes: receiving first indication information, the first indication information indicating receiving a first signal on a first time-frequency resource; receiving second indication information, the second indication information indicating a first ZP CSI-RS resource, the first ZP CSI-RS resource being a time-frequency resource not used for receiving the first signal on a non-SBFD time unit; receiving third indication information, the third indication information indicating a second time-frequency resource, the second time-frequency resource being a subset of the first ZP CSI-RS resource, the second time-frequency resource being a time-frequency resource not used for receiving the first signal on an SBFD time unit; receiving the first signal on a third time-frequency resource within the first time-frequency resource on an SBFD time unit, the third time-frequency resource being a time-frequency resource within the first time-frequency resource other than the second time-frequency resource; receiving the first signal on a fourth time-frequency resource within the first time-frequency resource on a non-SBFD time unit, the fourth time-frequency resource being a time-frequency resource within the first time-frequency resource other than the first ZP CSI-RS resource; wherein, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the first ZP CSI-RS resource. The time-frequency resources in the CSI-RS resource overlap except for the second time-frequency resource.

[0042] Based on the above technical solution, taking the terminal device as the execution subject as an example, the network device sends a third indication information to the terminal device, indicating that the second time-frequency resource in the first ZP CSI-RS resource cannot be used to transmit or receive signals. Thus, the terminal device can receive the first signal on other resources in the first time-frequency resource indicated by the first indication information for receiving the first signal, except for the second time-frequency resource. The second time-frequency resource is located on the SBFD time unit, so as to realize the configuration of the required resources on different time units in scenarios with different channel environments and interference environments on the SBFD time unit and non-SBFD time units, improve the flexibility of resource configuration, and determine the time-frequency resources that cannot be used to receive or transmit signals based on the configured resources.

[0043] In conjunction with the third aspect, in some implementations of the third aspect, the third indication information indicates the second time-frequency resource, including: the third indication information indicates at least one Channel State Information Reference Signal (CSI-RS) port, the at least one CSI-RS port being associated with the second time-frequency resource.

[0044] In conjunction with the third aspect, in some implementations of the third aspect, the third indication information indicates the second time-frequency resource, including: the third indication information indicates at least one code division multiplexing (CDM) group, the at least one CDM group being associated with the second time-frequency resource.

[0045] In conjunction with the third aspect, in some implementations of the third aspect, the third indication information indicates the second time-frequency resource, including: the third indication information indicates the number N of CSI-RS ports, and the N CSI-RS ports are associated with the second time-frequency resource.

[0046] In conjunction with the third aspect, in some implementations of the third aspect, if the codebook type is configured as a single-panel interface, and the codebook type is related to the antenna configuration of the network device, the indices of the N CSI-RS ports include: and or, And M / 2-(0~N / 2-1)-1, wherein M indicates the total number of antenna ports of the network device.

[0047] In conjunction with the third aspect, in some implementations of the third aspect, if the codebook type is configured as a dual-panel board, and the codebook type is related to the antenna configuration of the network device, the indices of the N CSI-RS ports include: and or, And (0~N / 2-1)+M / 2, where M indicates the total number of antenna ports of the network device.

[0048] In conjunction with the third aspect, in some implementations of the third aspect, the third indication information is configured in the first ZP CSI-RS resource, and the third indication information indicates the second time-frequency resource in the first ZP CSI-RS resource; or, the third indication information is configured in the first ZP CSI-RS resource set, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first ZP CSI-RS resource set; or, the third indication information is configured in the first ZP CSI-RS resource set table, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first ZP CSI-RS resource set table; or, the third indication information is configured in the PDSCH configuration or CSI reporting resource settings, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all ZP CSI-RS resource set tables.

[0049] Based on the above technical solution, the third indication information can indicate the second time-frequency resource by indicating the CSI-RS port, CDM group, or the number of CSI-RS ports, thereby improving the flexibility of the solution.

[0050] Fourthly, a communication method is provided. This method can be executed by a network device, a chip, or a circuit, etc., and this application does not limit it in this regard.

[0051] The communication method includes: sending first indication information, the first indication information indicating receiving a first signal on a first time-frequency resource; sending second indication information, the second indication information indicating a first ZP CSI-RS resource, the first ZP CSI-RS resource being a time-frequency resource not used for receiving the first signal on a non-SBFD time unit; sending third indication information, the third indication information indicating a second time-frequency resource, the second time-frequency resource being a subset of the first ZP CSI-RS resource, the second time-frequency resource being a time-frequency resource not used for receiving the first signal on a SBFD time unit; transmitting the first signal on a third time-frequency resource within the first time-frequency resource on a SBFD time unit, the third time-frequency resource being a time-frequency resource within the first time-frequency resource other than the second time-frequency resource; transmitting the first signal on a fourth time-frequency resource within the first time-frequency resource on a non-SBFD time unit, the fourth time-frequency resource being a time-frequency resource within the first time-frequency resource other than the first ZP CSI-RS resource; wherein, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the first ZP CSI-RS resource. The time-frequency resources in the CSI-RS resource overlap except for the second time-frequency resource.

[0052] Specifically, for a description of the third instruction information, please refer to the description of the third instruction information in the third aspect, which will not be repeated here.

[0053] The technical effects of the methods shown in the fourth aspect and its possible designs can be referred to the technical effects in the third aspect and its possible designs.

[0054] Fifthly, a communication device is provided. The communication device is used to execute the first and third aspects described above, and any one of their embodiments. Specifically, the communication device includes a processor and a memory for storing a computer program; the processor is used to retrieve and run the computer program from the memory, causing the communication device to execute the first and third aspects described above, and any one of their embodiments.

[0055] In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the transceiver unit can be a transceiver or an input / output interface. The processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0056] In another implementation, the communication device can be a chip, chip system, or circuit in a terminal device. In this case, the transceiver unit can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0057] In a sixth aspect, a communication device is provided. The communication device is used to execute the second and fourth aspects described above, and any one of their embodiments. Specifically, the communication device includes a processor and a memory for storing a computer program; the processor is used to retrieve and run the computer program from the memory, causing the network device to execute the second and fourth aspects described above, and any one of their embodiments.

[0058] In one implementation, the communication device is a network device. When the communication device is a network device, the transceiver unit can be a transceiver or an input / output interface. The processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0059] In another implementation, the communication device can be a chip, chip system, or circuit in a network device. In this case, the transceiver unit can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0060] A seventh aspect provides a computer-readable storage medium storing a computer program that, when executed, causes the method of any one of the implementations of the first to fourth aspects to be performed.

[0061] Eighthly, a computer program product comprising instructions is provided. When the computer program product is run, the method provided by any of the implementations of the first to fourth aspects is executed.

[0062] Ninth aspect, a chip is provided, the chip including a processor and a communication interface, the processor reads instructions through the communication interface and executes the method provided by any one of the implementations of the first to fourth aspects.

[0063] Optionally, as one implementation, the chip also includes a memory that stores computer programs or instructions. The processor is used to execute the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the processor is used to execute the method provided by any of the implementations of the first to fourth aspects described above.

[0064] In a tenth aspect, a communication system is provided, comprising the communication device of the fifth aspect and the communication device of the sixth aspect.

[0065] Eleventhly, a computer program is provided. When the computer program is run, it causes the method provided by any of the implementations of the first to fourth aspects above to be executed. Attached Figure Description

[0066] Figure 1 is a schematic diagram of the communication system to which this application applies.

[0067] Figure 2(a) to (d) are schematic diagrams of time-domain resource partitioning.

[0068] Figure 3(a) to (c) are schematic diagrams of antenna configuration.

[0069] Figure 4 is a schematic diagram of the time-frequency resource allocation of CSI-RS in one RB.

[0070] Figure 5 is a schematic diagram of the spatial location of the CSI-RS port.

[0071] Figure 6 is a schematic diagram of a signaling structure for MAC CE.

[0072] Figure 7 is a schematic flowchart of a communication method provided in an embodiment of this application.

[0073] Figure 8(a) and (b) are schematic diagrams of activation / deactivation messages provided in the embodiments of this application.

[0074] Figure 9 is a schematic flowchart of another communication method provided in an embodiment of this application.

[0075] Figure 10 is a schematic diagram of the second time-frequency resource provided in an embodiment of this application.

[0076] Figure 11 is a schematic diagram of the CSI-RS port provided in an embodiment of this application.

[0077] Figure 12 is a schematic block diagram of a communication device provided in an embodiment of this application.

[0078] Figure 13 is a schematic diagram of another communication device provided in an embodiment of this application.

[0079] Figure 14 is a schematic diagram of a chip system provided in an embodiment of this application. Detailed Implementation

[0080] To facilitate understanding of the embodiments of this application, the following points are provided.

[0081] First, in this application, "for indicating" can include both direct and indirect indication. When describing an indication information as indicating A, it can include whether the indication information directly indicates A or indirectly indicates A, but does not necessarily mean that the indication information includes A.

[0082] The information indicated by the indication information is called the information to be indicated. In the specific implementation, there are many ways to indicate the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information messages, and the transmission period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific transmission method. The transmission period and / or timing of these sub-information messages can be predefined, for example, predefined according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device. This configuration information can be, but is not limited to, one or a combination of at least two of radio resource control (RRC) signaling, media access control (MAC) layer signaling, and physical layer signaling. MAC layer signaling includes, for example, a MAC control element (CE); physical layer signaling includes, for example, downlink control information (DCI).

[0083] Second, in this application, "at least one" refers to one or more, and "more than one" refers to two or more. Furthermore, in the embodiments of this application, "first," "second," and various numerical designations (e.g., "#1," "#2," etc.) are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The sequence numbers of the processes below do not imply an order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. It should be understood that the objects described in this way can be interchanged where appropriate to describe solutions other than those in the embodiments of this application. In addition, in the embodiments of this application, terms such as "710," "720," etc., are merely identifiers for descriptive convenience and do not limit the order of execution steps.

[0084] Third, in this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design that is described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0085] Fourth, the term "storage" in the embodiments of this application can refer to storage in one or more memories. These memories can be separate installations or integrated into an encoder, decoder, processor, or communication device. Alternatively, some memories can be separately installed, while others can be integrated into the decoder, processor, or communication device. The type of memory can be any form of storage medium, and this application does not limit this.

[0086] Fifth, the “protocol” involved in the embodiments of this application may refer to standard protocols in the field of communication, such as LTE protocol, NR protocol and related protocols applied to future communication systems, and this application does not limit it.

[0087] Sixth, in the embodiments of this application, "under the circumstances", "when", and "if" can sometimes be used interchangeably. It should be noted that when the distinction is not emphasized, their intended meanings are consistent.

[0088] Seventh, in the embodiments of this application, the terms and English abbreviations, such as Radio Resource Control (RRC), are merely exemplary examples given for ease of description and should not constitute any limitation on this application. This application does not preclude the possibility of defining other terms that can achieve the same or similar functions in existing or future protocols.

[0089] Eighth, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0090] The technical solutions in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0091] The technical solutions of this application can be applied to various communication systems, such as 5th generation (5G) systems, new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems. Furthermore, the technical solutions of this application can be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0092] To facilitate understanding of the embodiments of this application, the communication system to which this application applies will be described first, with reference to FIG1. ​​The terminal equipment in the embodiments of this application can refer to an access terminal, user unit, user station, mobile station, mobile station, relay station, remote station, remote terminal, mobile device, user terminal, user equipment (UE), terminal, wireless communication device, user agent, or user device. The terminal equipment can also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal equipment in a 5G network, or terminal equipment in a future evolved public land mobile network (PLMN), or terminal equipment in a future vehicle-to-everything (V2X) network, etc. The embodiments of this application do not limit this to these categories.

[0093] For example, in this application embodiment, wearable devices can also be called wearable smart devices, which is a general term for devices that are intelligently designed and developed using wearable technology to make everyday wearables. Examples include glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those with full functionality that can achieve complete or partial functions without relying on a smartphone. Examples include smartwatches or smart glasses. Additionally, they can also be portable devices that focus on a specific type of application function and need to be used in conjunction with other devices such as smartphones. Examples include various smart bracelets and smart jewelry for vital sign monitoring.

[0094] Furthermore, in this embodiment, the terminal device can also be a terminal device in an IoT system. IoT is an important component of future information technology development, and its main technical characteristic is connecting objects to networks via communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. In this embodiment, IoT technology can achieve massive connectivity, deep coverage, and low terminal power consumption through technologies such as narrowband (NB).

[0095] In addition, in the embodiments of this application, the terminal device may also include a sensor, whose main functions include collecting data (for some terminal devices), receiving control information and downlink data from the network device, and sending electromagnetic waves to transmit uplink data to the network device.

[0096] The network device in this application embodiment can be any communication device with wireless transceiver function used to communicate with terminal devices. This device includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), home evolved Node B (HeNB, or home Node B (HNB), baseband unit (BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP) in a wireless fidelity (WIFI) system, and can also be a gNB in ​​a 5G system, such as a transmission point (TRP or TP) in an NR system, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (DU).

[0097] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, a radio access network can also be an open radio access network (O-RAN) architecture. In an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0098] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0099] In this embodiment, the terminal device or network device includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, for example... operating system, operating system, operating system, Operating system or Operating systems, etc. This application layer includes applications such as browsers, address books, word processing software, and instant messaging software.

[0100] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable storage medium" can include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0101] To facilitate understanding of the embodiments of this application, the communication system applicable to the embodiments of this application will be described in detail first using the communication system shown in FIG1 as an example. As shown in FIG1, the communication system 100 may include at least one network device 101 and at least one terminal device 102 to 107. The terminal devices 102 to 107 may be mobile or fixed. One or more of the network device 101 and the terminal devices 102 to 107 can communicate via a wireless link. Each network device can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0102] Optionally, terminal devices can communicate directly with each other. For example, device-to-device (D2D) technology can be used to achieve direct communication between terminal devices. As shown in Figure 1, terminal devices 105 and 106, and terminal devices 105 and 107 can communicate directly using D2D technology. Terminal devices 106 and 107 can communicate with terminal device 105 individually or simultaneously.

[0103] Terminal devices 105 to 107 can also communicate with network device 101 respectively. For example, they can communicate directly with network device 101, as shown in Figure 1, where terminal devices 105 and 106 can communicate directly with network device 101. They can also communicate indirectly with network device 101, as shown in Figure 1, where terminal device 107 communicates with network device 101 via terminal device 105.

[0104] Each communication device can be configured with multiple antennas. For each communication device in the communication system 100, the configured multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, the communication devices in the communication system 100 can communicate with each other through multi-antenna technology.

[0105] The interface between network devices and terminal devices can be a Uu interface (or air interface). Of course, in future communications, the names of these interfaces may remain unchanged or be replaced with other names; this application does not limit this. For example, communication between network devices and terminal devices follows a certain protocol layer structure. Network layering involves assigning tasks such as data transmission, forwarding, packetization or depacketization, and control information loading or unpacking for network nodes (e.g., network devices and terminal devices) to different hardware and software modules. This simplifies the complex problem of communication and network interconnection.

[0106] It should be understood that Figure 1 is a simplified schematic diagram for ease of understanding, and the communication system 100 may also include other network devices or other terminal devices (not shown in Figure 1). For example, the communication system 100 may also include core network devices. The access network devices provide wireless access connections for the terminal devices, enabling them to send data to or receive data sent by the terminal devices; furthermore, the access network devices are also connected to the core network devices, allowing them to forward data received from the terminal devices to the core network, or receive data from the core network that needs to be sent to the terminal devices.

[0107] For example, the communication system 100 may further include an application function (AF) network element, which is a control plane network function provided by the operator's network for providing application layer information; the communication system 100 may also include a session management function (SMF) network element, which is a control plane network function provided by the operator's network. In this embodiment, when the communication system 100 includes both AF and SMF network elements, the AF can send service-related information to the network device through the SMF.

[0108] To facilitate understanding of the embodiments of this application, some basic concepts involved in this application are briefly explained. It should be understood that the basic concepts introduced below are illustrated using the basic concepts specified in the NR protocol as examples, but do not limit the embodiments of this application to be applied only to NR systems. Therefore, the standard names that appear when describing using an NR system as an example are functional descriptions, and the specific names are not limited, but only indicate the function of the device, which can be extended to other future systems.

[0109] 1. Time Division Duplex (TDD): Widely used in the deployment of 5G wireless communication systems. TDD divides time-domain resources into uplink and downlink. One possible TDD uplink / downlink configuration is DDDSU, as shown in Figure 2(a), where D represents the downlink time slot, and each symbol in the downlink time slot is a downlink symbol; U represents the uplink time slot, and each symbol in the uplink time slot is an uplink symbol; and S represents the special time slot, which includes at least flexible symbols. Limited uplink time-domain resource allocation leads to reduced uplink coverage and increased latency in TDD.

[0110] For example, one possible method to enhance uplink coverage is to employ subband full duplex (SBFD). SBFD includes subband overlapping full duplex and subband non-overlapping full duplex.

[0111] Specifically, SBFD can be understood as dividing the frequency band on a downlink symbol and / or a flexible symbol into one or more uplink sub-bands and one or more downlink sub-bands, and allowing uplink transmission on the uplink sub-band of the downlink symbol. The resulting sub-band (or SBFD sub-band) can be understood as consisting of one RB or a group of consecutive RBs used in the same transmission direction.

[0112] Compared to TDD, SBFD has more uplink resources to improve uplink coverage performance, and more time slots have uplink resources for hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback to reduce latency.

[0113] Currently, base stations support full-duplex (FD) SBFD, meaning that in a single time slot, they can simultaneously transmit on the uplink subband and receive on the downlink subband; UEs support half-duplex (HF) SBFD, meaning that in a single time slot, they can only transmit on the uplink subband or only receive on the downlink subband.

[0114] For convenience, the symbol that simultaneously divides a frequency band into uplink and downlink subbands is called an SBFD symbol, denoted as X (to distinguish D, U, and S). The dedicated uplink / downlink configurations for SBFD typically include the following three types: XXXXX, XXXXU, and DXXXU, as shown in Figures 2(b) to (d). Here, an SBFD symbol can be understood as a symbol with a subband used by network devices for SBFD operation. SBFD symbols can also be called SBFD time units. Non-SBFD time units include uplink time units, downlink time units, and / or flexible time units (such as the U, D, or S time slots shown in Figure 2(a) above).

[0115] It should be noted that the time unit mentioned in this application can refer to a time slot, symbol, or other time domain range, without any limitation. For example, an SBFD time unit can be an SBFD time slot. Optionally, a time slot that includes SBFD symbols can be called an SBFD time slot, such as an SBFD time slot that only includes SBFD symbols, or an SBFD time slot that includes at least one SBFD symbol. As another example, a non-SBFD time unit can be a non-SBFD time slot. Optionally, a time slot that does not include SBFD symbols can be called a non-SBFD time slot.

[0116] 2. Antenna Configuration: The antenna configuration on the TDD network device side is shown in Figure 3(a). The TDD network device side shares one antenna array for both transmission and reception. Assume that the total number of antenna elements is L (L antenna elements as shown in Figure 3(a)), and the number of transceiver units (Tx) and receiver units (Rx) is K (K Tx and K Rx as shown in Figure 3(a)).

[0117] In the downlink time unit (e.g., downlink time slot or symbol), K transmit Tx units are linked to the antenna panel; in the uplink time unit, K receive Rx units are linked to the antenna panel. The number of units and antenna elements used for transmission and reception is the same.

[0118] SBFD network equipment antenna configurations fall into two categories:

[0119] The antenna configuration of the first type of SBFD network equipment is shown in Figure 3(b), including two antenna panel groups (antenna panel group #1 and antenna panel group #2 shown in Figure 3(b)). Each antenna panel group includes L antenna elements and K transmit / receive Tx and Rx elements. In the downlink time unit, the K transmit Tx elements are linked to one of the antenna panel groups; in the uplink time unit, the K receive Rx elements are linked to the other antenna panel group; in the SBFD time unit, the K transmit Tx elements are linked to one antenna panel group, and the K receive Rx elements are linked to the other antenna panel group. In this type of SBFD antenna configuration, by adding an antenna panel group, the number of transmit / receive units is ensured to be the same in both the SBFD and non-SBFD time units.

[0120] The antenna configuration of the second type of SBFD network equipment is shown in Figure 3(c). It includes two antenna panel groups, each with L / 2 antenna elements and K transmit / receive Tx and Rx elements. In the downlink time unit, the K transmit Tx elements are linked to the two antenna panel groups; in the uplink time unit, the K receive Rx elements are linked to the two antenna panel groups; in the SBFD time unit, K / 2 transmit Tx elements are linked to one antenna panel, and K / 2 receive Rx elements are linked to the other antenna panel. In this type of SBFD antenna configuration, the number of transmit / receive elements differs between the SBFD time unit and the non-SBFD time unit.

[0121] 3. Channel State Information (CSI) Measurement: Network devices need to know the CSI between the network device and the terminal device to help the network device perform downlink scheduling, downlink adaptation, and determine the transmission settings related to multiple-input multiple-output (MIMO) technology.

[0122] For example, one method for a network device to obtain CSI is as follows: the network device sends a channel state information reference signal (CSI-RS) to a terminal device, the terminal device receives and measures the CSI-RS to obtain CSI, and then reports it to the network device.

[0123] It is important to note that the channel and interference environments differ between the SBFD time unit and the downlink (or flexible) time unit. Terminal equipment needs to measure and report CSI separately for both the SBFD and downlink (or flexible) time units. This may be due to several factors, including:

[0124] 1) The network equipment adopts the antenna configuration of the second type of SBFD network equipment described above, meaning that the number of transmit antenna ports of the network equipment is different in the SBFD time unit and the downlink (or flexible) time unit. Therefore, the downlink channels are different in the SBFD time unit and the downlink (or flexible) time unit.

[0125] 2) During the SBFD time unit, some terminal devices receive downlink signals while others send uplink signals. This can lead to severe cross-link interference (CLI), i.e., uplink interference on the downlink. However, during the downlink time unit, all terminal devices receive downlink signals, so they are not affected by CLI.

[0126] 4. Resource Configuration: To enable terminal devices to measure and report CSI on the SBFD time unit and downlink (or flexible) time unit, network devices can configure two sets of non-zero power CSI-RS (NZP CSI-RS) resources for the terminal devices, respectively for channel measurements on the SBFD time unit and downlink (or flexible) time unit. Optionally, network devices may also configure two sets of NZP CSI-RS resources and / or two sets of CSI interference measurement (CSI-IM) resources for the terminal devices, respectively for interference measurements based on NZP CSI-RS and / or CSI-IM on the SBFD time unit and downlink (or flexible) time unit.

[0127] If the network device adopts the second type of SBFD network device-side antenna configuration described above, then the configurations of the two sets of NZP CSI-RS resources used for channel measurement will be different. For example, the number of ports and time-frequency resources of the two sets of NZP CSI-RS resources used for channel measurement will be different. This is because, based on the second type of SBFD network device-side antenna configuration, the number of antenna ports used by the network device in the SBFD time unit and the downlink (or flexible) time unit are different, so the number of ports used by the network device to transmit CSI-RS in the SBFD time unit and the downlink (or flexible) time unit is also different; furthermore, the time-frequency resources used by CSI-RS are related to the number of CSI-RS ports, so the time-frequency resources used by the network device to transmit CSI-RS in the SBFD time unit and the downlink (or flexible) time unit are also different. For details, please refer to Background Technology 4. Similarly, the configurations of the two sets of NZP CSI-RS resources used for interference measurement are also different.

[0128] Finally, to allow terminal devices to perform CSI measurements on NZP CSI-RS and CSI-IM resources, network devices cannot transmit the Physical Downlink Shared Channel (PDSCH) on these resources. That is, when transmitting PDSCH, network devices will perform rate matching based on these resources. Similarly, terminal devices cannot receive PDSCH on these resources. Therefore, network devices configure zero-power CSI-RS (ZP CSI-RS) resources for terminal devices. ZP CSI-RS resources cover the aforementioned NZP CSI-RS and CSI-IM resources used for channel and interference measurements in both the time and frequency domains. By configuring ZP CSI-RS resources for terminal devices, network devices inform them that they will not transmit PDSCH on ZP CSI-RS resources; and terminal devices, upon receiving ZP CSI-RS resources, will also not receive PDSCH on ZP CSI-RS resources.

[0129] 5. CSI-RS Resources: Current protocols (e.g., TS 38.211) provide methods for configuring CSI-RS resources, summarized as follows:

[0130] For any CSI-RS, the UE maps the CSI-RS sequence r(m) to a resource element (RE) (k,l) according to the following formula. p,μ :

[0131] Where, RE(k,l) p,μLocated within the resource block (RB) used by CSI-RS, it is configured by the network device for the user equipment. The parameters in the formula are explained below:

[0132] (or denoted as n) s,f () is the slot number of the CSI-RS slot within a system frame.

[0133] k is the subcarrier index, and k=0 indicates subcarrier 0 in common resource block (CRB) 0.

[0134] l is the OFDM symbol index in a time slot. If a time slot contains 14 OFDM symbols, then l = 0, 1, ..., 13.

[0135] The number of subcarriers in an RB, usually

[0136] ρ represents the density of CSI-RS in the frequency domain, which is given by the density field in the RRC cell CSI-RS resource mapping. The specific information elements included in CSI-RS resource mapping are not detailed here, but refer to the description of the CSI-RS resource mapping field in the current protocol.

[0137] It should be understood that within the configured CSI-RS bandwidth, one CSI-RS can be configured for each RB; this mode is called a CSI-RS density of 1. Alternatively, one CSI-RS can be configured for every RB; this mode is called a CSI-RS density of 0.5. For the density of 0.5, the CSI-RS configuration information specifies which RB (the RB corresponding to the odd-numbered or even-numbered index) carries the CSI-RS.

[0138] X represents the number of ports in CSI-RS, indicated by the number of ports (nrofPorts) field in the RRC cell CSI-RS-ResourceMapping.

[0139] β CSIRS This indicates the power control parameters, which are determined based on the power control (powerControlOffsetSS) field in the RRC information cell NZP-CSI-RS-Resource.

[0140] k′,l′,w f (k′), w t(l′) As shown in Tables 1 to 5, the code division multiplexing (CDM) type in Table 1 is indicated by the cdm-Type field in the RRC cell CSI-RS-ResourceMapping. Among them, k′ and w f (k′) indicates the frequency domain orthogonal cover code (OCC) used by a CDM group, l′ and w t (l′) indicates the time-domain OCC used by a CDM group.

[0141] Table 1: Locations within a CSI-RS slot

[0142] Table 2: Sequence w corresponding to CDM type 'noCDM' f (k′) and w t (l′)

[0143] Table 3: Sequence w corresponding to CDM type 'fd-CDM2' f (k′) and w t (l′)

[0144] Table 4: Sequence w corresponding to CDM type 'cdm4-FD2-TD2' f (k′) and w t (l′)

[0145] Table 5: Sequence w corresponding to CDM type 'cdm8-FD2-TD4' f (k′) and w t (l′)

[0146] In Table 1, the time-domain locations l0∈{0,1,…,13} and l1∈{2,3,…,12} are indicated by the fields firstOFDMSymbolInTimeDomain and firstOFDMSymbolInTimeDomain2 in the RRC cell CSI-RS-ResourceMapping.

[0147] Frequency domain position k in Table 1 i It is determined based on the frequencyDomainAllocation field in the RRC cell CSI-RS-ResourceMapping. This field indicates k in the form of a bitmap.i .

[0148] The antenna port number p is determined by the following formula:

[0149] p = 3000 + s + jL;

[0150] j = 0, 1, ..., N / L-1

[0151] s = 0, 1, ..., L-1;

[0152] Where s is the index of the OCC used in a CDM group in Tables 2 to 5, L∈{1,2,4,8} represents the size of the CDM group, and N represents the number of CSI-RS ports. The CDM group numbering order is: frequency domain first, then time domain. It should be understood that the CSI-RS port counting order is: code domain → frequency domain → time domain.

[0153] In summary, based on the above formulas and the CSI-RS resource configuration method described in Table 1, Figure 4 shows an example of time-frequency resource allocation for CSI-RS in one RB. As can be seen from Figure 4, CDM type represents the number of ports that can be reused for resources of each different color depth.

[0154] The following explains the RBs (start position and number) and time slots (time slot offset and repetition period) used in CSI-RS:

[0155] The RBs used by the UE to transmit CSI-RS are given by the fields freqBand and density in the RRC cell CSI-RS-ResourceMapping. freqBand indicates the frequency bandwidth used by the CSI-RS, including the starting RB and the number of RBs N. That is, the frequency bandwidth used by the CSI-RS is the N consecutive RBs starting from the starting RB, with the starting RB and the number of RBs N referenced to the Bandwidth Part (BWP).

[0156] For periodic and semi-persistent CSI-RS, as indicated by the resourceType field in the RRC cell CSI-ResourceConfig, network devices repeatedly transmit CSI-RS over time, and terminal devices also repeatedly receive CSI-RS over time. The repetition period and time slot offset are indicated by the CSI-ResourcePeriodicityAndOffset field in the RRC cell NZP-CSI-RS-Resource.

[0157] The pattern of CSI-RS using RE is the same on each RB of each time slot.

[0158] For example, the spatial location of the CSI-RS ports is shown in Figure 5, which illustrates the case where the network device's downlink antenna is configured with a single panel. Here, N1 represents the number of antenna elements in one polarization direction in the horizontal direction, N2 represents the number of antenna elements in one polarization direction in the vertical direction, and N1 is the number of antenna panels. The spatial arrangement order of the CSI-RS ports is: first vertical, then horizontal, then polarization, and finally antenna panels. Currently, the spatial locations corresponding to different numbers of CSI-RS ports supported by the protocol are shown in Table 6 (single panel) and Table 7 (multiple panels).

[0159] Table 6: Supported configurations are (N1, N2)

[0160] Table 7: Supported configurations are (N) g (N1, N2)

[0161] 6. ZP CSI-RS Resource Types: ZP CSI-RS resources include three time-domain behaviors: aperiodic, semi-persistent, and periodic. For each time-domain behavior, the network device configures one or more ZP CSI-RS resource sets (higher-layer cells: ZP-CSI-RS-ResourceSet). For example, the network device configures this via higher-layer signaling:

[0162] Aperiodic ZP CSI-RS Resource Sets Table (High-level cell: aperiodic-ZP-CSI-RS-ResourceSetsToAddModList)

[0163] A non-periodic ZP CSI-RS resource set table can contain a maximum of 3 ZP CSI-RS resource sets (high-level information cells: ZP-CSI-RS-Resource).

[0164] Semi-persistent ZP CSI-RS resource set table (high-level cell: sp-ZP-CSI-RS-ResourceSetsToAddModList)

[0165] A semi-persistent ZP CSI-RS resource set table can contain a maximum of 16 ZP CSI-RS resource sets.

[0166] The periodic ZP CSI-RS resource set (higher layer cell: p-ZP-CSI-RS-ResourceSet) should be understood to mean that the network device will only configure one periodic ZP CSI-RS resource set for the terminal device.

[0167] Each ZP CSI-RS resource set can contain a maximum of 16 ZP CSI-RS resources.

[0168] ZP CSI-RS resources and NZP CSI-RS resources use the same time-frequency resource configuration method, namely, higher-layer cell CSI-RS-ResourceMapping and higher-layer cell periodicityAndOffset. This helps ensure that the time-frequency resources of ZP CSI-RS cover those of NZP CSI-RS.

[0169] For periodic ZP CSI-RS resources, once the network device configures a periodic ZP CSI-RS resource set for the terminal device, it takes effect immediately.

[0170] For semi-persistent ZP CSI-RS resources, the network device configures a semi-persistent ZP CSI-RS resource set table for the terminal device, including up to 16 ZP CSI-RS resource sets. Then, the network device sends a semi-persistent (SP) ZP CSI-RS resource set activation / deactivation MAC CE to the terminal device, i.e., SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, instructing to activate or deactivate one of the semi-persistent ZP CSI-RS resource sets in the semi-persistent ZP CSI-RS resource set table.

[0171] The signaling structure of the SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE is shown in Figure 6. The information included in this MAC CE is explained as follows:

[0172] A / D: Indicates whether the SP ZP CSI-RS resource set is activated or deactivated. It is 1 bit long, with '1' indicating activation and '0' indicating deactivation.

[0173] Serving cell identifier (serving cell ID): Indicates the serving cell associated with the MAC CE, and has a length of 5 bits.

[0174] Bandwidth part identify (BWP ID): Indicates the downlink BWP associated with this MAC CE, with a length of 2 bits.

[0175] SP ZP CSI-RS Resource Set ID: Indicates the ID of the activated / deactivated SP ZP CSI-RS resource set, with a length of 4 bits.

[0176] R: Reserved bit, set to 0.

[0177] For aperiodic CSI-RS resource sets, the network device configures an aperiodic ZP CSI-RS resource set table for the terminal device, including up to three ZP CSI-RS resource sets. Then, the network device sends a DCI to the terminal device, including a ZP CSI-RS trigger field, which indicates that an aperiodic ZP CSI-RS resource set in the aperiodic ZP CSI-RS resource set table should be triggered.

[0178] For the ZP CSI-RS trigger field in DCI, its length is determined by the number of aperiodic ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list, i.e. Where n zp This represents the number of aperiodic ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list. The relationship between ZP CSI-RS triggers and aperiodic ZP CSI-RS resource sets is as follows:

[0179] '01': Trigger the ZP CSI-RS resource set whose ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) is 1.

[0180] '10': Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) of 2.

[0181] '11': Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) of 3.

[0182] '00': Reserved, will not trigger any ZP CSI-RS resource set.

[0183] The above text, in conjunction with Figure 1, briefly introduces the scenarios in which the communication method provided in the embodiments of this application can be applied, as well as the basic concepts that may be involved in the embodiments of this application. Among the basic concepts, ZP CSI-RS resources and the antenna configuration method for network equipment side of SBFD are introduced.

[0184] It should be understood that, based on the antenna configuration of the Type II SBFD network device, the configurations of the two sets of NZP-CSI-RS resources used for channel measurement (both in the SBFD and non-SBFD time units) are different. Optionally, the configurations of the two sets of NZP-CSI-RS resources used for interference measurement (both in the SBFD and non-SBFD time units) are also different. Therefore, the network device also needs to be configured with two sets of ZP CSI-RS resources, corresponding to two sets of NZP-CSI-RS resources used for channel measurement. Optionally, the network device also needs to be configured with two sets of ZP CSI-RS resources, corresponding to two sets of NZP-CSI-RS resources used for interference measurement.

[0185] However, the number of ZP CSI-RS resources is currently limited:

[0186] Non-periodic ZP CSI-RS resources: Up to 3 sets of ZP CSI-RS resources.

[0187] Semi-persistent ZP CSI-RS resources: Up to 16 ZP CSI-RS resource sets.

[0188] Periodic ZP CSI-RS Resources: Up to 1 ZP CSI-RS resource set.

[0189] Furthermore, a single ZP CSI-RS resource set can contain a maximum of 16 ZP CSI-RS resources. This cannot meet the requirement for configuring more ZP CSI-RS resources in SBFD scenarios when using antenna configurations based on Type II SBFD network devices, resulting in low flexibility.

[0190] In order to enable terminal devices to perform CSI measurements in different channel and interference environments (e.g., different antenna configurations in SBFD and non-SBFD time units), this application provides a communication method to configure time-frequency resources that cannot be used to receive or transmit signals in different time units for terminal devices.

[0191] It should be understood that the communication method provided in this application embodiment can be applied to systems that communicate using multi-antenna technology, such as the communication system 100 shown in FIG1. ​​This communication system may include at least one network device and at least one terminal device.

[0192] It should also be understood that the embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of this application, as long as it is possible to communicate according to the method provided in the embodiments of this application by running a program that records the code of the method provided in the embodiments of this application. For example, the execution subject of the method provided in the embodiments of this application may be a terminal device, or a functional module in the terminal device that can call and execute a program.

[0193] Figure 7 is a schematic flowchart of a communication method provided in an embodiment of this application, including the following steps:

[0194] In S710, the network device sends the first message to the terminal device, and the terminal device receives the first message from the network device accordingly.

[0195] The first message indicates the reception of a first signal, which includes, but is not limited to, PDSCH, or other signals that cannot be transmitted or received on ZP CSI-RS resources. Examples will not be given here.

[0196] In S720, the network device sends a second message to the terminal device, and the terminal device receives the second message from the network device accordingly.

[0197] The second message indicates a first resource set containing a first resource and a second resource, wherein the time-domain resources of the first resource are located on SBFD time units and the time-domain resources of the second resource are located on non-SBFD time units.

[0198] For example, the first message and the second message can be information carried in the same message, or the first message and the second message can be different messages; this embodiment does not limit this.

[0199] The fact that the time domain resources of the first resource mentioned above are located on the SBFD time unit and the time domain resources of the second resource are located on the non-SBFD time unit can be understood as follows: compared with the number of ZP CSI-RS resources included in the ZP CSI-RS resource set or ZP CSI-RS resource set table configured by the current network device, the number of ZP CSI-RS resources configured by the network device in this embodiment is larger, which can meet the resource requirements of both the non-SBFD time unit and the SBFD time unit.

[0200] By way of example and not limitation, the first and second resources are ZP CSI-RS resources or other resources that cannot transmit signals. In this embodiment, the names of the resources are not limited. For ease of description, the resources may be referred to as ZP CSI-RS resources below.

[0201] As one possible implementation, the second message mentioned above is on higher-level signaling (e.g., RRC).

[0202] As another possible implementation, the second message described above is a new signaling message between the network device and the terminal device. For example, the second message is a new signaling message added by the network device to configure the first resource set described above to the terminal device.

[0203] It should be understood that this embodiment does not limit whether the second message is a reused existing signaling or a newly added signaling. All signaling that can be used to indicate the first set of resources required by the terminal in this embodiment is within the scope of protection of this application.

[0204] For example, in this embodiment, the first resource set indicated by the second message, which includes the first resource and the second resource, includes the following possible forms:

[0205] Method 1: The first resource set includes one or more of the following:

[0206] Two periodic ZP CSI-RS resource sets;

[0207] Two semi-persistent ZP CSI-RS resource set tables;

[0208] Two non-periodic ZP CSI-RS resource set tables.

[0209] Specifically, each of the two periodic ZP CSI-RS resource sets includes a maximum of 16 ZP CSI-RS resources.

[0210] Each of the two semi-persistent ZP CSI-RS resource set tables contains a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set contains a maximum of 16 ZP CSI-RS resources.

[0211] In addition, each of the two aperiodic ZP CSI-RS resource set tables includes a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes a maximum of 16 ZP CSI-RS resources.

[0212] Compared to the ZP CSI-RS resource configuration methods shown above (configuring one periodic ZP CSI-RS resource set, one semi-persistent ZP CSI-RS resource set table, or one non-periodic ZP CSI-RS resource set table), the case shown in Method 1 is equivalent to expanding the number of ZP CSI-RS resource sets or ZP CSI-RS resource set tables.

[0213] For example, the two periodic ZP CSI-RS resource sets include a first periodic ZP CSI-RS resource set and a second periodic ZP CSI-RS resource set. The first resource is contained in the first periodic ZP CSI-RS resource set, and the second resource is contained in the second periodic ZP CSI-RS resource set. That is, in the two periodic ZP CSI-RS resource sets, all ZP CSI-RS resources in one periodic ZP CSI-RS resource set are configured on one type of time unit between SBFD and non-SBFD time units, and all ZP CSI-RS resources in the other periodic ZP CSI-RS resource set are configured on another type of time unit.

[0214] For example, two periodic ZP CSI-RS resource sets include periodic ZP CSI-RS resource set #1 and periodic ZP CSI-RS resource set #2. Periodic ZP CSI-RS resource set #1 is a non-SBFD-specific periodic ZP CSI-RS resource set, while periodic ZP CSI-RS resource set #2 is a SBFD-specific periodic ZP CSI-RS resource set. The terminal device does not expect all ZP CSI-RS resources in periodic ZP CSI-RS resource set #1 to be configured on SBFD time units. Similarly, the terminal device does not expect all ZP CSI-RS resources in periodic ZP CSI-RS resource set #2 to be configured on non-SBFD time units.

[0215] It should be understood that the non-SBFD-specific periodic ZP CSI-RS resource set and the SBFD-specific periodic ZP CSI-RS resource set in the two periodic ZP CSI-RS resource sets mentioned above are distinguished by different high-level signaling names.

[0216] For example, the higher-level information cell corresponding to the periodic ZP CSI-RS resource set not dedicated to SBFD is p-ZP-CSI-RS-ResourceSet, and the higher-level information cell corresponding to the periodic ZP CSI-RS resource set dedicated to SBFD is p-ZP-CSI-RS-ResourceSet-SBFD.

[0217] For example, the two semi-persistent ZP CSI-RS resource set tables include a first semi-persistent ZP CSI-RS resource set table and a second semi-persistent ZP CSI-RS resource set table. A first resource is included in the first semi-persistent ZP CSI-RS resource set table, and a second resource is included in the second semi-persistent ZP CSI-RS resource set table. That is, in the two semi-persistent ZP CSI-RS resource set tables, all ZP CSI-RS resources in one semi-persistent ZP CSI-RS resource set table are configured on one type of time unit between SBFD and non-SBFD time units, while all ZP CSI-RS resources in the other semi-persistent ZP CSI-RS resource set table are configured on another type of time unit.

[0218] For example, two semi-persistent ZP CSI-RS resource set tables include semi-persistent ZP CSI-RS resource set table #1 and semi-persistent ZP CSI-RS resource set table #2. Semi-persistent ZP CSI-RS resource set table #1 is a non-SBFD-specific periodic ZP CSI-RS resource set, while semi-persistent ZP CSI-RS resource set table #2 is a SBFD-specific periodic ZP CSI-RS resource set. The terminal device does not expect all ZP CSI-RS resources in semi-persistent ZP CSI-RS resource set table #1 to be configured on SBFD time units. Similarly, the terminal device does not expect all ZP CSI-RS resources in semi-persistent ZP CSI-RS resource set table #2 to be configured on non-SBFD time units.

[0219] It should be understood that the non-SBFD-specific semi-persistent ZP CSI-RS resource set table and the SBFD-specific semi-persistent ZP CSI-RS resource set table mentioned above are distinguished by different high-level signaling names.

[0220] For example, the higher-level information element corresponding to the non-SBFD-specific semi-persistent ZP CSI-RS resource set table is sp-ZP-CSI-RS-ResourceSetsToAddModList, while the higher-level information element corresponding to the SBFD-specific semi-persistent ZP CSI-RS resource set table is sp-ZP-CSI-RS-ResourceSetsToAddModList-SBFD.

[0221] For example, the two aperiodic ZP CSI-RS resource set tables include a first aperiodic ZP CSI-RS resource set table and a second aperiodic ZP CSI-RS resource set table. The first resource is contained in the first aperiodic ZP CSI-RS resource set table, and the second resource is contained in the second aperiodic ZP CSI-RS resource set table. That is, in the two aperiodic ZP CSI-RS resource set tables, all ZP CSI-RS resources in one aperiodic ZP CSI-RS resource set table are configured on one type of time unit between SBFD and non-SBFD time units, and all ZP CSI-RS resources in the other aperiodic ZP CSI-RS resource set table are configured on another type of time unit.

[0222] For example, there are two aperiodic ZP CSI-RS resource set tables: aperiodic ZP CSI-RS resource set table #1 and aperiodic ZP CSI-RS resource set table #2. Aperiodic ZP CSI-RS resource set table #1 is a non-SBFD-specific aperiodic ZP CSI-RS resource set table, while periodic ZP CSI-RS resource set table #2 is an SBFD-specific aperiodic ZP CSI-RS resource set table. The terminal device does not expect all ZP CSI-RS resources in aperiodic ZP CSI-RS resource set table #1 to be configured on SBFD time units. Similarly, the terminal device does not expect all ZP CSI-RS resources in aperiodic ZP CSI-RS resource set table #2 to be configured on non-SBFD time units.

[0223] It should be understood that the non-SBFD-specific non-periodic ZP CSI-RS resource set table and the SBFD-specific non-periodic ZP CSI-RS resource set table in the two non-periodic ZP CSI-RS resource set tables mentioned above are distinguished by different high-level signaling names.

[0224] For example, the higher-level information element corresponding to the non-SBFD-specific aperiodic ZP CSI-RS resource set table is aperiodic-ZP-CSI-RS-ResourceSetsToAddModList, while the higher-level information element corresponding to the SBFD-specific aperiodic ZP CSI-RS resource set table is aperiodic-ZP-CSI-RS-ResourceSetsToAddModList-SBFD.

[0225] Method 2: The first resource set includes one or more of the following:

[0226] A periodic ZP CSI-RS resource set table;

[0227] A semi-persistent ZP CSI-RS resource set table;

[0228] A non-periodic ZP CSI-RS resource set table.

[0229] Specifically, a periodic ZP CSI-RS resource set table may include a maximum of 2 ZP CSI-RS resource sets, and each ZP CSI-RS resource set may include a maximum of 16 ZP CSI-RS resources.

[0230] A semi-persistent ZP CSI-RS resource set table can contain a maximum of 32 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can contain a maximum of 16 ZP CSI-RS resources.

[0231] A non-periodic ZP CSI-RS resource set table may contain a maximum of 6 or 7 ZP CSI-RS resource sets, and each ZP CSI-RS resource set may contain a maximum of 16 ZP CSI-RS resources.

[0232] Compared to the ZP CSI-RS resource configuration methods shown above (configuring one periodic ZP CSI-RS resource set, one semi-persistent ZP CSI-RS resource set table, or one non-periodic ZP CSI-RS resource set table), the case shown in Method 2 is equivalent to expanding the number of ZP CSI-RS resource sets included in the ZP CSI-RS resource set table.

[0233] For example, a periodic ZP CSI-RS resource set includes two ZP CSI-RS resource sets, one of which includes a first resource and the other includes a second resource. That is, all ZP CSI-RS resources in one ZP CSI-RS resource set are configured on one type of time unit between SBFD and non-SBFD time units, while all ZP CSI-RS resources in the other ZP CSI-RS resource set are configured on another type of time unit.

[0234] For example, a periodic ZP CSI-RS resource set includes ZP CSI-RS resource set #1 and ZP CSI-RS resource set #2. ZP CSI-RS resource set #1 is a non-SBFD-specific periodic ZP CSI-RS resource set, while ZP CSI-RS resource set #2 is a SBFD-specific periodic ZP CSI-RS resource set. The terminal device does not expect all ZP CSI-RS resources in ZP CSI-RS resource set #1 to be configured on SBFD time units. Similarly, the terminal device does not expect all ZP CSI-RS resources in ZP CSI-RS resource set #2 to be configured on non-SBFD time units.

[0235] For example, a semi-persistent ZP CSI-RS resource set table includes 32 ZP CSI-RS resource sets, 16 of which include a first resource, and another 16 of which include a second resource.

[0236] For example, an aperiodic ZP CSI-RS resource set table includes 6 or 7 ZP CSI-RS resource sets, one of the 3 ZP CSI-RS resource sets includes a first resource, and the other 3 or 4 ZP CSI-RS resource sets include a second resource; or, one of the 3 ZP CSI-RS resource sets includes a second resource, and the other 3 or 4 ZP CSI-RS resource sets include the first resource.

[0237] Method 3: The first resource set includes one or more of the following:

[0238] A periodic ZP CSI-RS resource set;

[0239] A semi-persistent ZP CSI-RS resource set table;

[0240] A non-periodic ZP CSI-RS resource set table.

[0241] Specifically, a periodic ZP CSI-RS resource set may include a maximum of 32 ZP CSI-RS resources.

[0242] A semi-persistent ZP CSI-RS resource set table can contain a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can contain a maximum of 32 ZP CSI-RS resources.

[0243] In addition, a non-periodic ZP CSI-RS resource set table can include a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can include a maximum of 32 ZP CSI-RS resources.

[0244] Compared to the ZP CSI-RS resource configuration methods shown above (configuring one periodic ZP CSI-RS resource set, one semi-persistent ZP CSI-RS resource set table, or one non-periodic ZP CSI-RS resource set table), the case shown in method 3 is equivalent to expanding the number of ZP CSI-RS resources included in the ZP CSI-RS resource set.

[0245] Method 4: The first resource set includes one or more of the following:

[0246] A periodic ZP CSI-RS resource set;

[0247] A semi-persistent ZP CSI-RS resource set table;

[0248] A non-periodic ZP CSI-RS resource set table.

[0249] Specifically, a periodic ZP CSI-RS resource set may include a maximum of 16 ZP CSI-RS resources.

[0250] A semi-persistent ZP CSI-RS resource set table can contain a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can contain a maximum of 16 ZP CSI-RS resources.

[0251] In addition, a non-periodic ZP CSI-RS resource set table can include a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can include a maximum of 16 ZP CSI-RS resources.

[0252] Compared to the ZP CSI-RS resource configuration methods shown above (configuring one periodic ZP CSI-RS resource set, one semi-persistent ZP CSI-RS resource set table, or one non-periodic ZP CSI-RS resource set table), in the case shown in method 4, the configured ZP CSI-RS resources are not directly expanded. However, each ZP CSI-RS resource includes two ZP CSI-RS sub-resources, which is equivalent to enhancing the ZP CSI-RS resources. By configuring two ZP CSI-RS sub-resources, the expansion of ZP CSI-RS resources is indirectly achieved.

[0253] Specifically, the two ZP CSI-RS sub-resources within a ZP CSI-RS resource are configured simultaneously. That is, CSI measurements on SBFD time units and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS sub-resources can also be configured in pairs.

[0254] The aforementioned ZP CSI-RS sub-resource includes: resource mapping parameters, periodicity, and bias parameters. The resource mapping parameters are RRC cell CSI-RS resource mapping (CSI-RS-ResourceMapping), and the periodicity and bias parameters are higher-layer cell periodicityAndOffset. Explanations of these parameters can be found in existing protocols and will not be repeated here.

[0255] For example, each ZP CSI-RS resource includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource, one of which includes the first resource and the other includes the second resource. That is, each ZP CSI-RS resource includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource. The first ZP CSI-RS sub-resource is configured on one type of time unit, either SBFD or non-SBFD, and the second ZP CSI sub-resource is configured on the other type of time unit.

[0256] For example, each ZP CSI-RS resource includes ZP CSI-RS sub-resources dedicated to SBFD and ZP CSI-RS sub-resources not dedicated to SBFD. Terminal devices do not expect ZP CSI-RS sub-resources dedicated to SBFD to be configured on non-SBFD time units; similarly, terminal devices do not expect ZP CSI-RS sub-resources not dedicated to SBFD to be configured on SBFD time units.

[0257] It should be understood that the methods 1 to 4 described above are merely illustrative examples of possible implementations of the network device configuring a first resource set, including the first resource and the second resource, via the second message in this embodiment, and do not constitute any limitation on the scope of protection of this application. For example, in this embodiment, the network device can configure other resources besides the resource set or resource set table mentioned above via the second message. Further examples will not be provided here.

[0258] It should also be understood that if the second message indicates the first resource and the second resource, the terminal device and the network device cannot send or receive PDSCH on the time-frequency resources included in the first resource and the second resource.

[0259] It should be noted that if the ZP CSI-RS resource configured in the second message above includes a semi-persistent ZP CSI-RS resource, then the semi-persistent ZP CSI-RS resource needs to be activated / deactivated via message. The method flow shown in Figure 7 may also include:

[0260] In S730, the network device sends an activation / deactivation message to the terminal device, and the terminal device receives the activation / deactivation message from the network device accordingly.

[0261] Specifically, activation messages are used to activate semi-persistent ZP CSI-RS resources corresponding to SBFD time units and semi-persistent ZP CSI-RS resources corresponding to non-SBFD time units; deactivation messages are used to deactivate semi-persistent ZP CSI-RS resources corresponding to SBFD time units and semi-persistent ZP CSI-RS resources corresponding to non-SBFD time units. Activation / deactivation messages can be MAC CEs, which carry fields indicating whether ZP CSI-RS resources are activated or deactivated.

[0262] For example, in this implementation, the activation / deactivation message is used to activate or deactivate a semi-persistent ZP CSI-RS resource set corresponding to the SBFD time unit and the non-SBFD time unit, respectively, in ways including but not limited to the following possible implementations:

[0263] Method 1.1: Corresponding to Method 1 above, the ZP CSI-RS resource configured in the second message includes two semi-persistent ZP CSI-RS resource set tables. One semi-persistent ZP CSI-RS resource set table corresponds to the SBFD time unit, and the other semi-persistent ZP CSI-RS resource set table corresponds to the non-SBFD time unit. For example, the first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table.

[0264] As one possible implementation, in the case shown in Method 1.1, the activation / deactivation message can be referred to as a third message, which includes the first field and the second field.

[0265] For example, the first field activates the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, the first field deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0266] In this implementation, the first field indicates the index of an activated / deactivated ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table (e.g., the semi-persistent ZP CSI-RS resource set table corresponding to the SBFD time unit); the second field indicates the index of an activated / deactivated ZP CSI-RS resource set in the second semi-persistent ZP CSI-RS resource set table (e.g., the semi-persistent ZP CSI-RS resource set table corresponding to the non-SBFD time unit).

[0267] For example, the third message can be the SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE (as shown in Figure 6 above) as defined in the current protocol, with the first field and the second field located in the lowest 4 bits and the highest 4 bits of the second byte of the MAC CE, respectively, as shown in Figure 8(a), or the first field and the second field located in the highest 4 bits and the lowest 4 bits of the second byte of the MAC CE, respectively.

[0268] As another possible implementation, in the case shown in Method 1.1, the activation / deactivation message can be called the third message #1, which includes the first field #1.

[0269] For example, the first field #1 activates the first resource in the first semi-persistent ZP CSI-RS resource set table and activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, the first field #1 deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table and deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0270] In this implementation, the first field #1 indicates the index of an active ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table, and the index of an active ZP CSI-RS resource set in the second semi-persistent ZP CSI-RS resource set table; or, the first field #1 indicates the index of a deactivated ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table, and the index of a deactivated ZP CSI-RS resource set in the second semi-persistent ZP CSI-RS resource set table.

[0271] Optionally, the third message #1 is a MAC CE, which includes a first bit and a second bit. If the first bit takes the first value, it indicates that the ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table or the second semi-persistent ZP CSI-RS resource set table is activated or deactivated based on the second bit; or, if the first bit takes the second value, it indicates that the ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table or the second semi-persistent ZP CSI-RS resource set table is activated or deactivated.

[0272] For example, two reserved bits in the MAC CE can be reused, such as the most significant bit (the first reserved bit) and the second most significant bit (the second reserved bit) in the MAC CE. The first reserved bit is referred to as the first bit, and the second reserved bit as the second bit.

[0273] If the first bit is 0, it indicates which semi-persistent ZP CSI-RS resource set to select from based on the second bit:

[0274] If the second bit is 0, a ZP CSI-RS resource set is determined from the first semi-persistent ZP CSI-RS resource set table. Specifically, a ZP CSI-RS resource set is determined from the first semi-persistent ZP CSI-RS resource set table based on the first field #1; if the second bit is 1, a ZP CSI-RS resource set is determined from the second semi-persistent ZP CSI-RS resource set table. Specifically, a ZP CSI-RS resource set is determined from the second semi-persistent ZP CSI-RS resource set table based on the first field #1.

[0275] If the first bit is 1, it indicates that one of the ZP CSI-RS resource sets in the first semi-persistent ZP CSI-RS resource set table and the second semi-persistent ZP CSI-RS resource set table is activated simultaneously. Specifically, a ZP CSI-RS resource set is determined from the first semi-persistent ZP CSI-RS resource set table according to the first field #1, and a ZP CSI-RS resource set is also determined from the second semi-persistent ZP CSI-RS resource set table according to the first field #1.

[0276] As an example and not a limitation, the third message #1 can be the SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE defined in the current protocol (as shown in Figure 6 above, the MAC CE structure). The first field #1 is located in the lowest 4 bits of the second byte in the MAC CE. The first and second bits reuse the highest two reserved bits, as shown in Figure 8(b). Alternatively, the first and second bits reuse other reserved bits, or the first and second bits are bits from a newly added byte, or the first and second bits are not included. This will not be elaborated here.

[0277] For example, the first semi-persistent ZP CSI-RS resource set table is the first semi-persistent ZP CSI-RS resource set table, and the second semi-persistent ZP CSI-RS resource set table is the second semi-persistent ZP CSI-RS resource set table; or the first semi-persistent ZP CSI-RS resource set table is the second semi-persistent ZP CSI-RS resource set table, and the second semi-persistent ZP CSI-RS resource set table is the first semi-persistent ZP CSI-RS resource set table. In this embodiment, the first semi-persistent ZP CSI-RS resource set table can be the semi-persistent ZP CSI-RS resource set table with the smaller identifier (ID) among the two semi-persistent ZP CSI-RS resource set tables, and the second semi-persistent ZP CSI-RS resource set table can be the semi-persistent ZP CSI-RS resource set table with the larger ID among the two semi-persistent ZP CSI-RS resource set tables. Alternatively, the first semi-persistent ZP CSI-RS resource set table can be any one of the two semi-persistent ZP CSI-RS resource set tables, and the second semi-persistent ZP CSI-RS resource set table can be the other semi-persistent ZP CSI-RS resource set table among the two semi-persistent ZP CSI-RS resource set tables. No limitation is made in this embodiment.

[0278] It should be understood that each of the two semi-persistent ZP CSI-RS resource collection tables includes a corresponding index. For example, the first semi-persistent ZP CSI-RS resource collection table includes a first index, and the second semi-persistent ZP CSI-RS resource collection table includes a second index; the first index and the second index are different.

[0279] Additionally, upon receiving the activation / deactivation message, the terminal device can simultaneously activate / deactivate the ZP CSI-RS resource sets in the first semi-persistent ZP CSI-RS resource set table and the second semi-persistent ZP CSI-RS resource set table. CSI measurements on SBFD and non-SBFD time units are typically configured in pairs; therefore, the corresponding ZP CSI-RS resource sets can also be activated / deactivated in pairs.

[0280] Method 1.2: Corresponding to Method 2 above, the ZP CSI-RS resource configured in the second message includes a semi-persistent ZP CSI-RS resource set table. This semi-persistent ZP CSI-RS resource set table includes a maximum of 32 ZP CSI-RS resource sets. Of these 32 sets, 16 correspond to SBFD time units, and the other 16 correspond to non-SBFD time units. For example, the first resource is contained in 16 ZP CSI-RS resource sets, and the second resource is contained in another 16 ZP CSI-RS resource sets.

[0281] As one possible implementation, in the case shown in Method 1.2, the activation / deactivation message can be referred to as the fifth message, which includes a fifth field and a sixth field.

[0282] For example, the fifth field activates the first resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field activates the second resource in the semi-persistent ZP CSI-RS resource set table; or, the fifth field deactivates the third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates the fourth resource in the semi-persistent ZP CSI-RS resource set table.

[0283] For example, the fifth field indicates the index of an active / deactivated ZP CSI-RS resource set corresponding to the SBFD time unit in the semi-persistent ZP CSI-RS resource set table; the sixth field indicates the index of an active / deactivated ZP CSI-RS resource set corresponding to the non-SBFD time unit in the semi-persistent ZP CSI-RS resource set table.

[0284] For example, the fifth message could be a newly defined SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, which consists of three bytes, with the fifth and sixth fields located in the second and third bytes of the MAC CE, respectively. For instance, both the fifth and sixth fields are located in the lowest 5 bits of their respective bytes, as shown in Figure 8(c).

[0285] As another possible implementation, in the case shown in Method 2.1, the activation / deactivation message can be referred to as the fifth message #1, which includes the fifth field #1.

[0286] For example, field #1 activates the first and second resources in the semi-persistent ZP CSI-RS resource set table; or, field #1 deactivates the first and second resources in the semi-persistent ZP CSI-RS resource set table. For instance, 16 resource sets out of 32 resource sets and another 16 resource sets are independently numbered (ID).

[0287] For example, the fifth field #1 indicates the index of an active ZP CSI-RS resource set corresponding to an SBFD time unit in the semi-persistent ZP CSI-RS resource set table, and indicates the index of an active / deactivated ZP CSI-RS resource set corresponding to a non-SBFD time unit in the semi-persistent ZP CSI-RS resource set table.

[0288] For example, the fifth message #1 can be a newly defined SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, which includes two bytes, with the fifth field #1 located in the lowest 5 bits of the corresponding byte, as shown in Figure 8(d).

[0289] It should be understood that after receiving an activation / deactivation message, the terminal device can simultaneously activate / deactivate two (different) ZP CSI-RS resource sets in the semi-persistent ZP CSI-RS resource set table. CSI measurements on SBFD and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS resource sets can also be activated / deactivated in pairs.

[0290] Optionally, Method 1.2 corresponds to Method 2 above. In the case shown in Method 2, 16 of the 32 resource sets can be regarded as a semi-persistent ZP CSI-RS resource set sub-table. That is, a semi-persistent ZP CSI-RS resource set table includes two semi-persistent ZP CSI-RS resource set sub-tables. Under this assumption, the activation / deactivation message in the case shown in Method 1.2 can be the fifth message #2, which includes the fifth field #2 and the sixth field #2.

[0291] For example, the fifth field #2 activates the first resource in a semi-persistent ZP CSI-RS resource set sub-table, and the sixth field #2 activates the second resource in another semi-persistent ZP CSI-RS resource set sub-table; or, the fifth field #2 deactivates the third resource in a semi-persistent ZP CSI-RS resource set sub-table, and the sixth field #2 deactivates the fourth resource in another semi-persistent ZP CSI-RS resource set sub-table. The structure of the fifth message #2 can be similar to the structure of the third message shown in Figure 8(a) above, except that the first and second fields in Figure 8(a) are replaced with the fifth field #2 and the sixth field #2, respectively, where the length of the fifth field #2 and the length of the sixth field #2 are both 4 bits.

[0292] Method 1.3: Corresponding to Method 3 above, that is, a semi-persistent ZP CSI-RS resource set table configured in the second message includes a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes a maximum of 32 ZP CSI-RS resources.

[0293] In the case shown in Method 1.3, the activation / deactivation message indicates the activation / deactivation of a ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table. The activation / deactivation message can be referred to in the description of MAC CE in Figure 6 above, and will not be repeated here.

[0294] In the case shown in Method 1.3, the maximum number of ZP CSI-RS resource sets that can be included in the semi-persistent ZP CSI-RS resource set table is increased from 16 to 32.

[0295] Method 1.4: Corresponding to Method 4 above, the semi-persistent ZP CSI-RS resource set table configured in the second message includes a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes a maximum of 16 ZP CSI-RS resources. Each ZP CSI-RS resource includes two ZP CSI-RS sub-resources.

[0296] In the case shown in Method 1.4, the activation / deactivation message indicates the activation / deactivation of a ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table, where each ZP CSI-RS resource set comprises two ZP CSI-RS sub-resources. The activation / deactivation message can be referred to in the description of MAC CE in Figure 6 above, and will not be repeated here.

[0297] In the case shown in Method 1.4, the ZP CSI-RS resource is enhanced by configuring two ZP CSI-RS sub-resources, which implicitly expands the ZP CSI-RS resource.

[0298] It should be understood that two ZP CSI-RS sub-resources within a ZP CSI-RS resource are always activated / deactivated simultaneously.

[0299] It should be understood that CSI measurements on SBFD time units and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS sub-resources can also be activated / deactivated in pairs.

[0300] It should be noted that if the first and / or second resources configured in the second message above are aperiodic ZP CSI-RS resources, then the aperiodic ZP CSI-RS resources need to be triggered via a message. The method flow shown in Figure 7 may also include:

[0301] In S740, the network device sends a trigger message to the terminal device, and the terminal device receives the trigger message from the network device accordingly.

[0302] Specifically, the trigger message is used to trigger aperiodic ZP CSI-RS resources corresponding to SBFD time units and aperiodic ZP CSI-RS resources corresponding to non-SBFD time units. The trigger message can be a DCI, which carries a field indicating the triggering of ZP CSI-RS resources.

[0303] For example, in this implementation, the trigger message is used to trigger an aperiodic ZP CSI-RS resource set corresponding to the SBFD time unit and the non-SBFD time unit, respectively, in ways including but not limited to the following possible implementations:

[0304] Method 2.1: Corresponding to Method 1 above, the ZP CSI-RS resources configured in the second message include two aperiodic ZP CSI-RS resource set tables. One aperiodic ZP CSI-RS resource set table corresponds to the SBFD time unit, and the other aperiodic ZP CSI-RS resource set table corresponds to a non-SBFD time unit. For example, the first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table.

[0305] As one possible implementation, in the case shown in Method 2.1, the trigger message can be called the fourth message, which includes the third field and the fourth field.

[0306] For example, the third field triggers the first resource in the first aperiodic ZP CSI-RS resource set table, and the fourth field triggers the second resource in the second aperiodic ZP CSI-RS resource set table.

[0307] Optionally, the third field indicates the index of a ZP CSI-RS resource set triggered in the first aperiodic ZP CSI-RS resource set table (e.g., the aperiodic ZP CSI-RS resource set table corresponding to the SBFD time unit), and the fourth field indicates the index of a ZP CSI-RS resource set triggered in the second aperiodic ZP CSI-RS resource set table (e.g., the aperiodic ZP CSI-RS resource set table corresponding to the non-SBFD time unit).

[0308] For example, the third field is an existing ZP CSI-RS trigger field in DCI, and the fourth field is a newly added ZP CSI-RS trigger field in DCI. The characteristics of the third and fourth fields include:

[0309] The length of the third field is determined based on the number of ZP CSI-RS resource sets included in the first aperiodic ZP CSI-RS resource set list, i.e. Bits, where n zp,1 This represents the number of ZP CSI-RS resource sets included in the first non-periodic ZP CSI-RS resource set list.

[0310] As described in method 1 above, 0≤n zp,1 If the length is ≤3, then the length of the third field is 0, 1, or 2 bits.

[0311] The length of the fourth field is determined based on the number of ZP CSI-RS resource sets included in the second aperiodic ZP CSI-RS resource set list, i.e. Bits, where n zp,2 This represents the number of ZP CSI-RS resource sets included in the second non-periodic ZP CSI-RS resource set list.

[0312] As described in method 1 above, 0≤n zp,2 If the length is ≤3, then the length of the fourth field is 0, 1, or 2 bits.

[0313] Specifically, the method by which the third and fourth fields indicate the ZP CSI-RS resource set can be consistent with that specified in the current protocol, such as:

[0314] '01': Trigger the ZP CSI-RS resource set whose ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) is 1.

[0315] '10': Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) of 2.

[0316] '11': Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) of 3.

[0317] As another possible implementation, in the case shown in Method 2.1, the trigger message can be called the fourth message #1, which includes the third field #1.

[0318] For example, the third field #1 triggers the first resource in the first aperiodic ZP CSI-RS resource set table and the second resource in the second aperiodic ZP CSI-RS resource set table.

[0319] Optionally, the fourth message #1 is a DCI, which includes a first bit and a second bit. If the first bit takes the first value, it indicates that the ZP CSI-RS resource set in the first aperiodic ZP CSI-RS resource set table or the second aperiodic ZP CSI-RS resource set table is determined based on the second bit; or, if the first bit takes the second value, it indicates that the ZP CSI-RS resource set in the first aperiodic ZP CSI-RS resource set table or the second aperiodic ZP CSI-RS resource set table is triggered.

[0320] For example, two reserved bits in the DCI can be reused, or two new bits can be added to the DCI, which include a first bit and a second bit, where the first bit is the first bit and the second bit is the second bit.

[0321] If the first bit is 0, it indicates which aperiodic ZP CSI-RS resource set to select from based on the second bit:

[0322] If the second bit is 0, a ZP CSI-RS resource set is determined from the first aperiodic ZP CSI-RS resource set table. Specifically, a ZP CSI-RS resource set is determined from the first aperiodic ZP CSI-RS resource set table based on the third field #1; if the second bit is 1, a ZP CSI-RS resource set is determined from the second aperiodic ZP CSI-RS resource set table. Specifically, a ZP CSI-RS resource set is determined from the second aperiodic ZP CSI-RS resource set table based on the third field #1.

[0323] If the first bit is 1, it indicates that one of the ZP CSI-RS resource sets in the first aperiodic ZP CSI-RS resource set table and the second aperiodic ZP CSI-RS resource set table is activated simultaneously. Specifically, a ZP CSI-RS resource set is determined from the first aperiodic ZP CSI-RS resource set table according to the third field #1, and a ZP CSI-RS resource set is also determined from the second aperiodic ZP CSI-RS resource set table according to the third field #1.

[0324] For example, the first aperiodic ZP CSI-RS resource set table is one of two aperiodic ZP CSI-RS resource set tables, and the second aperiodic ZP CSI-RS resource set table is the other of the two aperiodic ZP CSI-RS resource set tables.

[0325] For example, the first aperiodic ZP CSI-RS resource set table is the first aperiodic ZP CSI-RS resource set table, and the second aperiodic ZP CSI-RS resource set table is the second aperiodic ZP CSI-RS resource set table; or the first aperiodic ZP CSI-RS resource set table is the second aperiodic ZP CSI-RS resource set table, and the second aperiodic ZP CSI-RS resource set table is the first aperiodic ZP CSI-RS resource set table. In this embodiment, the first aperiodic ZP CSI-RS resource set table can be the aperiodic ZP CSI-RS resource set table with the smaller ID among the two aperiodic ZP CSI-RS resource set tables, and the second aperiodic ZP CSI-RS resource set table can be the aperiodic ZP CSI-RS resource set table with the larger ID among the two aperiodic ZP CSI-RS resource set tables. Alternatively, the first aperiodic ZP CSI-RS resource set table can be any one of the two aperiodic ZP CSI-RS resource set tables, and the second aperiodic ZP CSI-RS resource set table can be the other aperiodic ZP CSI-RS resource set table among the two aperiodic ZP CSI-RS resource set tables. No limitation is made in this embodiment.

[0326] It should be understood that each of the two aperiodic ZP CSI-RS resource collection tables includes a corresponding index. For example, the first aperiodic ZP CSI-RS resource collection table includes index #1, and the second aperiodic ZP CSI-RS resource collection table includes index #2. Index #1 and index #2 are different.

[0327] It should be understood that after receiving the trigger message, the terminal device can simultaneously trigger the ZP CSI-RS resource set in the first non-periodic ZP CSI-RS resource set table and the ZP CSI-RS resource set in the second non-periodic ZP CSI-RS resource set table.

[0328] It should also be understood that CSI measurements on SBFD and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS resource sets can also be triggered in pairs.

[0329] Method 2.2: Corresponding to Method 2 above, the ZP CSI-RS resources configured in the second message include an aperiodic ZP CSI-RS resource set table. This aperiodic ZP CSI-RS resource set table includes a maximum of 6 or 7 ZP CSI-RS resource sets. Three of these sets correspond to SBFD time units, and the other three or four correspond to non-SBFD time units. Alternatively, three of the six or seven ZP CSI-RS resource sets correspond to non-SBFD time units, and the other three or four correspond to SBFD time units.

[0330] As one possible implementation, in the case shown in Method 2.2, the trigger message can be called the sixth message, which includes the seventh and eighth fields.

[0331] For example, the seventh field triggers the first resource in the aperiodic ZP CSI-RS resource set table, and the eighth field triggers the second resource in the aperiodic ZP CSI-RS resource set table.

[0332] For example, the seventh field indicates the index of a ZP CSI-RS resource set triggered by the SBFD time unit in the aperiodic ZP CSI-RS resource set table; the eighth field indicates the index of a ZP CSI-RS resource set triggered by the SBFD time unit in the aperiodic ZP CSI-RS resource set table.

[0333] As an example: A non-periodic ZP CSI-RS resource set table may contain a maximum of 7 ZP CSI-RS resource sets.

[0334] For example, the seventh field is an existing ZP CSI-RS trigger field in DCI, and the eighth field is a newly added ZP CSI-RS trigger field in DCI. The characteristics of the seventh and eighth fields include:

[0335] The lengths of the seventh and eighth fields are determined based on the number of ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list, i.e. Bits, where n zp This represents the number of ZP CSI-RS resource sets included in the non-periodic ZP CSI-RS resource set list.

[0336] As described in method 2 above, 0≤n zp If the length is ≤7, then the length of the seventh and eighth fields is 0, 1, 2 or 3 bits.

[0337] The methods used by the seventh and eighth fields to indicate the ZP CSI-RS resource set include:

[0338] '001': Triggers the ZP CSI-RS resource set whose ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) is 1.

[0339] '010': Triggers the ZP CSI-RS resource set with ZP-CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 2.

[0340] …

[0341] '111': Triggers the ZP CSI-RS resource set with ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 7.

[0342] '000': Reserved, will not trigger any ZP CSI-RS resource set.

[0343] It should be understood that after receiving a trigger message, the terminal device can simultaneously trigger two (different) ZP CSI-RS resource sets indicated by the seventh and eighth fields in the non-periodic ZP CSI-RS resource set table.

[0344] It should be understood that CSI measurements on SBFD time units and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS resource sets can also be triggered in pairs.

[0345] As another example: the non-periodic ZP CSI-RS resource set table includes a maximum of 6 ZP CSI-RS resource sets.

[0346] For example, the seventh field is an existing ZP CSI-RS trigger field in DCI, and the eighth field is a newly added second ZP CSI-RS trigger field in DCI. The characteristics of the seventh and eighth fields include:

[0347] The lengths of the seventh and eighth fields are determined by half the number of ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list, i.e. Bits, where n zp This represents the number of ZP CSI-RS resource sets included in the non-periodic ZP CSI-RS resource set list.

[0348] As described in method 2 above, 0≤n zp If the length is ≤6, then the length of the seventh and eighth fields is 0, 1, or 2 bits.

[0349] The seventh field indicates the method for specifying the ZP CSI-RS resource set, including:

[0350] '01': Triggers the ZP CSI-RS resource set whose ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) is 1.

[0351] '10': Triggers the ZP CSI-RS resource set with ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 2.

[0352] '11': Triggers the ZP CSI-RS resource set with ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 3.

[0353] '00': Reserved, will not trigger any ZP CSI-RS resource set.

[0354] The method for indicating the ZP CSI-RS resource set in the eighth field includes:

[0355] '01': Triggers the ZP CSI-RS resource set with ZP-CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 4.

[0356] '10': Triggers the ZP CSI-RS resource set with ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 5.

[0357] '11': Triggers the ZP CSI-RS resource set with ZP-CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) of 6.

[0358] '00': Reserved, will not trigger any ZP CSI-RS resource set.

[0359] For example, all ZP CSI-RS resources in the ZP CSI-RS resource set with indices 1-3 and all ZP CSI-RS resources in the ZP CSI-RS resource set with indices 4-6 are allocated to different time unit types. Then, the seventh and eighth fields trigger the allocation of aperiodic ZP CSI-RS resources to SBFD and non-SBFD time units, respectively.

[0360] It should be understood that after receiving a trigger message, the terminal device can simultaneously trigger two (different) ZP CSI-RS resource sets indicated by the seventh and eighth fields in the non-periodic ZP CSI-RS resource set table.

[0361] It should be understood that CSI measurements on SBFD time units and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS resource sets can also be triggered in pairs.

[0362] Method 2.3: Corresponding to Method 3 above, that is, an aperiodic ZP CSI-RS resource set table configured in the second message. The aperiodic ZP CSI-RS resource set table includes a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes a maximum of 32 ZP CSI-RS resources.

[0363] In the case shown in Method 2.3, the trigger message indicates a ZP CSI-RS resource set triggered in the non-periodic ZP CSI-RS resource set table.

[0364] In the case shown in Method 2.3, the maximum number of ZP CSI-RS resource sets included in the non-periodic ZP CSI-RS resource set table is increased from 16 to 32.

[0365] Method 2.4: Corresponding to Method 4 above, the non-periodic ZP CSI-RS resource set table configured in the second message includes a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes a maximum of 16 ZP CSI-RS resources. Each ZP CSI-RS resource includes two ZP CSI-RS sub-resources.

[0366] In the case shown in Method 2.4, the trigger message indicates a ZP CSI-RS resource set triggered in the non-periodic ZP CSI-RS resource set table, where each ZP CSI-RS resource in the ZP CSI-RS resource set includes two ZP CSI-RS sub-resources.

[0367] In the case shown in Method 2.4, the ZP CSI-RS resource is enhanced by configuring two ZP CSI-RS sub-resources, which implicitly expands the ZP CSI-RS resource.

[0368] It should be understood that two ZP CSI-RS sub-resources within a ZP CSI-RS resource are always triggered simultaneously.

[0369] It should be understood that CSI measurements on SBFD time units and non-SBFD time units are usually configured in pairs, so the corresponding ZP CSI-RS sub-resources can also be triggered in pairs.

[0370] Furthermore, in this embodiment, after the network device completes resource configuration, activation / deactivation, or triggering of the corresponding resources via the second message, it can send a first signal to the terminal device. The method flow shown in Figure 7 also includes:

[0371] In S740, the network device sends a first signal to the terminal device, and the terminal device receives the first signal from the network device accordingly.

[0372] Specifically, network devices will not send the first signal on the first resource and the second resource; terminal devices will not receive the first signal on the resources indicated by the first resource and the second resource.

[0373] For example, the network device will not transmit the first signal on any time-frequency resources included in all ZP CSI-RS resources in the periodic ZP CSI-RS resource set (table) indicated by the second message. The terminal device will also not receive the first signal on any time-frequency resources included in all ZP CSI-RS resources in the periodic ZP CSI-RS resource set (table) indicated by the second message.

[0374] For example, the network device will not transmit the first signal on time-frequency resources included in all ZP CSI-RS resources in the active ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table indicated by the second message. The terminal device will also not receive the first signal on time-frequency resources included in all ZP CSI-RS resources in the active ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table indicated by the second message.

[0375] For example, the network device will not transmit the first signal on any time-frequency resources included in all ZP CSI-RS resources in the ZP CSI-RS resource set triggered by the aperiodic ZP CSI-RS resource set table indicated by the second message. Similarly, the terminal device will not receive the first signal on any time-frequency resources included in all ZP CSI-RS resources in the ZP CSI-RS resource set triggered by the aperiodic ZP CSI-RS resource set table indicated by the second message.

[0376] In the communication method shown in Figure 7, the terminal device receives a first message and a second message. The first message instructs the terminal device to receive a first signal, and the second message indicates a first resource set containing the first and second resources. The terminal device can receive the first signal on resources other than the first and second resources. Specifically, the time-frequency resources of the first resource are located on the SBFD time unit, and the time-frequency resources of the second resource are located on the non-SBFD time unit. This can be understood as the network device configuring relevant resources for the SBFD and non-SBFD time units respectively through the second message, thereby enabling the configuration of required resources on different time units under different channel and interference environments, improving the flexibility of resource configuration.

[0377] This application also provides another communication method, which will be described in detail below with reference to Figure 9.

[0378] Figure 9 is a schematic flowchart of a communication method provided in an embodiment of this application. As shown in Figure 9, the method includes the following steps:

[0379] S910, the network device sends a first instruction message to the terminal device, and the terminal device receives the first instruction message from the network device accordingly.

[0380] The first indication information indicates that a first signal can be received on a first time-frequency resource. Alternatively, the first indication information indicates a first time-frequency resource for receiving the first signal. The first signal includes, but is not limited to, PDSCH, or other signals that cannot be transmitted or received on ZP CSI-RS resources; these will not be listed individually here.

[0381] S920, the network device sends a second instruction message to the terminal device, and the terminal device receives the second instruction message from the network device accordingly.

[0382] The second indication information indicates a first ZP CSI-RS resource, which is a time-frequency resource not used for receiving the first signal on non-SBFD time units. Exemplarily, the second indication information is used to configure one or more ZP CSI-RS resources that are not used for transmitting or receiving PDSCH on non-SBFD time units. The first ZP CSI-RS resource is any one of the one or more ZP CSI-RS resources. For ease of description, the following explanation uses the second indication information indicating a first ZP CSI-RS resource as an example.

[0383] S930, the network device sends third instruction information to the terminal device, and the terminal device receives the third instruction information from the network device accordingly.

[0384] For example, the third indication information indicates a second time-frequency resource, which is a time-frequency resource on the SBFD time unit that is not used to transmit or receive the first signal.

[0385] Specifically, the second time-frequency resource is a subset of the first ZP CSI-RS resource. The second time-frequency resource is not used to transmit or receive the first signal. In other words, time-frequency resource #1 in the first ZP CSI-RS resource can be used to transmit or receive the first signal, and this time-frequency resource #1 does not include the second time-frequency resource. Alternatively, the third indication information indicates time-frequency resource #1, which is a subset of the first ZP CSI-RS resource and is a time-frequency resource used to transmit or receive the first signal in the SBFD time unit. This can be understood as the third indication information indicating which time-frequency resources in the first ZP CSI-RS resource can transmit or receive signals in the SBFD time unit, or which time-frequency resources in the first ZP CSI-RS resource cannot transmit or receive signals in the SBFD time unit.

[0386] When the third indication information indicates the second time-frequency resource, a first signal is transmitted or received on the third time-frequency resource within the first time-frequency resource in the SBFD time unit. The third time-frequency resource is a time-frequency resource in the first time-frequency resource other than the second time-frequency resource. In a non-SBFD time unit, the first signal is transmitted or received on the fourth time-frequency resource within the first time-frequency resource. The fourth time-frequency resource is a time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource.

[0387] When the third indication information indicates time-frequency resource #1, the first signal can be transmitted or received on time-frequency resource #1 within the first time-frequency resource in the SBFD time unit. Further, the first signal can be transmitted or received on a third time-frequency resource within the first time-frequency resource in the SBFD time unit. The third time-frequency resource is any time-frequency resource in the first time-frequency resource other than the second time-frequency resource, and the second time-frequency resource is any time-frequency resource in the first ZP CSI-RS resource other than time-frequency resource #1. In non-SBFD time units, the first signal can be transmitted or received on a fourth time-frequency resource within the first time-frequency resource. The fourth time-frequency resource is any time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource.

[0388] The first time-frequency resource overlaps with the second time-frequency resource (or there is an intersection, full or partial overlap, etc.), and the first time-frequency resource overlaps with the time-frequency resources in the first ZP CSI-RS resource other than the second time-frequency resource (or there is an intersection, full or partial overlap, etc.).

[0389] For example, the first instruction information, the second instruction information, and the third instruction information may be information carried in the same message, or the first instruction information, the second instruction information, and the third instruction information may be different messages. This embodiment does not limit this.

[0390] The third indication information instructs the terminal device not to receive PDSCH on the second time-frequency resource (or RE) of the first ZP CSI-RS resource in the SBFD time unit. Similarly, the network device cannot transmit PDSCH on the second time-frequency resource (or RE) of the SBFD time unit. Alternatively, the third indication information instructs the terminal device to receive PDSCH on time-frequency resource #1 (or RE) of the first ZP CSI-RS resource in the SBFD time unit. Similarly, the network device can transmit PDSCH on time-frequency resource #1 (or RE) of the first ZP CSI-RS resource in the SBFD time unit.

[0391] In addition, terminal devices cannot receive PDSCH on the first ZP CSI-RS resource in a non-SBFD time unit, and similarly, network devices cannot send PDSCH on the first ZP CSI-RS resource in a non-SBFD time unit.

[0392] It should be understood that if the second indication information can indicate multiple ZP CSI-RS resources, then the aforementioned third indication information can be used to indicate the time-frequency resource (or RE) in each of the multiple ZP CSI-RS resources, and the terminal device cannot receive PDSCH on that time-frequency resource (or RE).

[0393] For example, the ZP CSI-RS resources indicated by the second indication information include the first ZP CSI-RS resources and the second ZP CSI-RS resources, and the third indication information can indicate the second time-frequency resource #1_1 in the first ZP CSI-RS resources and the second time-frequency resource #1_2 in the second ZP CSI-RS.

[0394] For ease of description, this embodiment uses the third indication information indicating the second time-frequency resource (or RE) of the first ZP CSI-RS resource as an example for illustration.

[0395] For example, the network device configures one or more of the following three resource sets or resource set tables for the terminal device:

[0396] A periodic ZP CSI-RS resource set;

[0397] A semi-persistent ZP CSI-RS resource set table;

[0398] A non-periodic ZP CSI-RS resource set table.

[0399] Specifically, a periodic ZP CSI-RS resource set may include a maximum of 16 ZP CSI-RS resources.

[0400] A semi-persistent ZP CSI-RS resource set table can contain a maximum of 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can contain a maximum of 16 ZP CSI-RS resources.

[0401] In addition, a non-periodic ZP CSI-RS resource set table can include a maximum of 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can include a maximum of 16 ZP CSI-RS resources.

[0402] In this embodiment, no restrictions are placed on the ZP CSI-RS resources configured by the network device for the terminal device.

[0403] It should be understood that, according to the antenna configuration of the Type II SBFD network equipment, the number of antenna ports on the SBFD time unit is halved compared to the non-SBFD time unit, which in turn halves the number of CSI-RS ports on the SBFD time unit. According to the mapping relationship between the number of CSI-RS ports and CSI-RS time-frequency resources defined in the current protocol, as shown in Table 1 and Figure 4, halving the number of CSI-RS ports will further halve the number of CSI-RS time-frequency resources.

[0404] Therefore, the time-frequency resources used by CSI-RS on the SBFD time unit are half that used by CSI-RS on non-SBFD time units. This means that the time-frequency resources used by ZP CSI-RS on the SBFD time unit are also half that used by ZP CSI-RS on non-SBFD time units.

[0405] Based on the above analysis, one possible method is to configure ZP CSI-RS resources according to the CSI-RS ports and CSI-RS time-frequency resources on non-SBFD time units, and then use third indication information to indicate the time-frequency resources in ZP CSI-RS resources located in SBFD time units. For example, when the antenna configuration on non-SBFD time units and SBFD time units is as shown in the second type of antenna configuration above (i.e., the number of antenna ports corresponding to SBFD time units is half the number of antenna ports corresponding to non-SBFD time units), the third indication information indicates that half of the time-frequency resources in ZP CSI-RS resources are located in SBFD time units; another example is when the number of antenna ports corresponding to non-SBFD time units is different from the number of antenna ports corresponding to SBFD time units (e.g., the number of antenna ports corresponding to SBFD time units is less than the number of antenna ports corresponding to non-SBFD time units), the third indication information indicates the time-frequency resources in ZP CSI-RS resources actually used for SBFD time units. It should be understood that the number of antenna ports corresponding to the SBFD time unit and the number of antenna ports corresponding to the non-SBFD time unit are different in this embodiment, and no specific difference is made between the number of antenna ports corresponding to the SBFD time unit and the number of antenna ports corresponding to the non-SBFD time unit.

[0406] For example, in this embodiment, the third indication information indicates the second time-frequency resource (or RE), including but not limited to the following possible methods:

[0407] Implementation Method 1: The third indication information indicates at least one CSI-RS port, which is associated with the second time-frequency resource. For example, the third indication information is a bitmap, where each bit corresponds one-to-one with a CSI-RS port.

[0408] For example, a bit value of '0' in the bitmap indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the bit value is '0', the corresponding CSI-RS port is associated with time-frequency resource #1 that can be used to transmit or receive the first signal); a bit value of '1' in the bitmap indicates that PDSCH cannot be transmitted or received on the corresponding time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the bit value is '1', the corresponding CSI-RS port is associated with a second time-frequency resource that cannot be used to transmit or receive the first signal); or,

[0409] A bit value of '0' in the bit diagram indicates that PDSCH cannot be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the bit value is '0', the corresponding CSI-RS port is associated with a second time-frequency resource that cannot be used to transmit or receive the first signal). A bit value of '1' in the bit diagram indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the bit value is '1', the corresponding CSI-RS port is associated with time-frequency resource #1 that can be used to transmit or receive the first signal).

[0410] In the implementation shown in Method 1, time-frequency resource #1 includes the time-frequency resource associated with the CSI-RS port corresponding to the value '0' in the bitmap; the second time-frequency resource includes the time-frequency resource associated with the CSI-RS port corresponding to the value '1' in the bitmap. Alternatively, time-frequency resource #1 includes the time-frequency resource associated with the CSI-RS port corresponding to the value '1' in the bitmap; the second time-frequency resource includes the time-frequency resource associated with the CSI-RS port corresponding to the value '0' in the bitmap.

[0411] For example, as shown in Figures 10 and 11, the number of CSI-RS ports is 32, N1 = 8, N2 = 2, and the bit diagram of the third indication information is "11111111000000001111111100000000". The bit diagram is associated with CSI-RS ports 3000 to 3031 from low to high bits. '0' indicates that PDSCH can be sent or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port, which is the aforementioned time-frequency resource #1. '1' indicates that PDSCH cannot be sent or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port, which is the aforementioned second time-frequency resource.

[0412] Implementation Method Two: The third indication information indicates at least one Code Division Multiplexing (CDM) group, which is associated with the second time-frequency resource. For example, the first indication information is a bitmap, where each bit corresponds one-to-one with a CDM group.

[0413] For example, a bit value of '0' in the bitmap indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group (e.g., if the bit value is '0', the corresponding CDM group is associated with time-frequency resource #1 that can be used to transmit or receive the first signal); a bit value of '1' in the bitmap indicates that PDSCH cannot be transmitted or received on the corresponding time-frequency resource (or RE) associated with the corresponding CDM group (e.g., if the bit value is '1', the corresponding CDM group is associated with a second time-frequency resource that cannot be used to transmit or receive the first signal); or,

[0414] A bit value of '0' in the bitmap indicates that PDSCH cannot be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group (e.g., if the bit value is '0', the corresponding CDM group is associated with a second time-frequency resource that cannot be used to transmit or receive the first signal). A bit value of '1' in the bitmap indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group (e.g., if the bit value is '1', the corresponding CDM group is associated with time-frequency resource #1 that can be used to transmit or receive the first signal).

[0415] In the second implementation, time-frequency resource #1 includes the time-frequency resource associated with the CDM group corresponding to the bit value '0'; the second time-frequency resource includes the time-frequency resource associated with the CDM group corresponding to the bit value '1'. Alternatively, time-frequency resource #1 includes the time-frequency resource associated with the CDM group corresponding to the bit value '1'; the second time-frequency resource includes the time-frequency resource associated with the CDM group corresponding to the bit value '0'. For example, as shown in Figures 10 and 11, the number of CSI-RS ports is 32, N1 = 8, N2 = 2, and the bit map of the first indication information is "11001100". The bit map is associated with CDM groups 0 to 7 from low to high bits. '0' indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group, i.e., the aforementioned time-frequency resource #1, and '1' indicates that PDSCH cannot be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group, i.e., the aforementioned second time-frequency resource.

[0416] Implementation Method 3: The third indication information indicates the number of ports N, and N CSI-RS ports are associated with the second time-frequency resource.

[0417] In the implementation shown in Method 3, time-frequency resource #1 includes time-frequency resources associated with N CSI-RS ports; the second time-frequency resource includes time-frequency resources associated with (MN) CSI-RS ports other than the N CSI-RS ports out of the M CSI-RS ports. Alternatively, time-frequency resource #1 includes time-frequency resources associated with (MN) CSI-RS ports other than the N CSI-RS ports out of the M CSI-RS ports; the second time-frequency resource includes time-frequency resources associated with the N CSI-RS ports.

[0418] As one possible implementation, the network device's antenna is configured as a single panel, or in other words, the codebook type is configured as a single panel.

[0419] In this implementation, the CSI-RS port index is 0~N / 2-1, and (0~N / 2-1)+M / 2; or, in this implementation, the CSI-RS port index is M-(0~N / 2-1)-1, and M / 2-(0~N / 2-1)-1, where M is the total number of antenna ports of the network device.

[0420] For example, CSI-RS ports with CSI-RS port indices of 0 to N / 2-1 and (0 to N / 2-1)+M / 2 are associated with time-frequency resource #1 that can be used to transmit or receive the first signal; CSI-RS ports with CSI-RS port indices of M-(0 to N / 2-1)-1 and M / 2-(0 to N / 2-1)-1 are associated with second time-frequency resource that can not be used to transmit or receive the first signal.

[0421] As another possible implementation, the network device's antenna is configured as a dual-panel panel, or in other words, the codebook type is configured as a dual-panel panel.

[0422] In this implementation, the CSI-RS port index is: 0 to N / 2-1, or... Alternatively, in this implementation, the CSI-RS port index is: M-(0~N / 2-1)-1, or (0~N / 2-1)+M / 2, where M is the total number of antenna ports of the network device.

[0423] For example, the CSI-RS port index is 0 to N / 2-1, or, The CSI-RS port is associated with time-frequency resource #1 that can be used to transmit or receive the first signal; the CSI-RS port with index M-(0~N / 2-1)-1, or (0~N / 2-1)+M / 2, is associated with a second time-frequency resource that can not be used to transmit or receive the first signal. Optionally, the network device may also send a fourth indication information to the terminal device, indicating that the CSI-RS port index is one of the methods described above.

[0424] In this embodiment, the third indication information can be carried in any of the following ways:

[0425] The third indication information is configured in the first ZP CSI-RS resource, and the third indication information indicates the second time-frequency resource in the first ZP CSI-RS resource;

[0426] or,

[0427] The third indication information is configured in the first ZP CSI-RS resource set, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first ZP CSI-RS resource set;

[0428] or,

[0429] The third indication information is configured in the first ZP CSI-RS resource set table, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first ZP CSI-RS resource set table;

[0430] or,

[0431] The third indication information is configured in the PDSCH configuration (e.g., higher layer cell PDSCH-Config). The third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all ZP CSI-RS resource set tables.

[0432] or,

[0433] The third indication information is configured in the CSI reporting resource settings (e.g., CSI Reporting Setting or higher-level information cell CSI-ReportCofig). The third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all ZP CSI-RS resource set tables.

[0434] It should be noted that if one or more of the aforementioned ZP CSI-RS resources are semi-persistent ZP CSI-RS resources, then the ZP CSI-RS resources need to be activated / deactivated via messages; if one or more of the aforementioned ZP CSI-RS resources are aperiodic ZP CSI-RS resources, then the ZP CSI-RS resources need to be triggered via messages. The method flow shown in Figure 9 may also include:

[0435] S940, the network device sends an activation / deactivation message to the terminal device, and the terminal device receives the activation / deactivation message from the network device accordingly.

[0436] The activation / deactivation message can be a MAC CE, which carries a field indicating the activation / deactivation of the ZP CSI-RS resource.

[0437] Optionally, the activation / deactivation message indicates the activation / deactivation of a ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table.

[0438] In S950, the network device sends a trigger message to the terminal device, and the terminal device receives the trigger message from the network device accordingly.

[0439] The trigger message can be a DCI, which carries a field indicating that a ZP CSI-RS resource is triggered.

[0440] Optionally, the trigger message indicates a ZP CSI-RS resource set triggered in the non-periodic ZP CSI-RS resource set table.

[0441] Furthermore, in this embodiment, after the network device completes resource configuration and activates / deactivates or triggers the corresponding resources through the first indication information, the second indication information, and the third indication information, it can send a first signal to the terminal device. The method flow shown in Figure 9 also includes:

[0442] In S960, the network device sends a first signal to the terminal device, and the terminal device receives the first signal from the network device accordingly.

[0443] Specifically, the network device will not send the first signal on the second time-frequency resource included in any ZP CSI-RS resource as indicated by the third indication information; the terminal device will also not receive the first signal on the second time-frequency resource included in any ZP CSI-RS resource as indicated by the third indication information.

[0444] For example, the network device will not transmit the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the configured periodic ZP CSI-RS resource set; the terminal device will also not receive the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the configured periodic ZP CSI-RS resource set.

[0445] For example, the network device will not transmit the first signal on the second time-frequency resource included in any of the active ZP CSI-RS resource sets in the configured semi-persistent ZP CSI-RS resource set table; the terminal device will also not receive the first signal on the second time-frequency resource included in any of the active ZP CSI-RS resource sets in the configured semi-persistent ZP CSI-RS resource set table.

[0446] For example, the network device will not send the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the ZP CSI-RS resource set triggered by the configured aperiodic ZP CSI-RS resource set table; the terminal device will also not receive the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the ZP CSI-RS resource set triggered by the third information in the configured aperiodic ZP CSI-RS resource set table.

[0447] In the communication method shown in Figure 9, the network device sends a third indication information to the terminal device, indicating that the second time-frequency resource in the first ZP CSI-RS resource cannot be used to transmit or receive signals. Thus, the terminal device can receive the first signal on other resources in the first time-frequency resource indicated by the first indication information for receiving the first signal, excluding the second time-frequency resource. The second time-frequency resource is located on the SBFD time unit, so as to realize the configuration of the required resources on different time units in scenarios with different channel environments and interference environments on the SBFD time unit and non-SBFD time units, thereby improving the flexibility of resource configuration.

[0448] It should be understood that the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0449] It should also be understood that, in the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0450] It should also be understood that in some of the above embodiments, the examples are mainly based on devices in existing network architectures (such as network devices, terminal devices, etc.). It should be understood that the specific form of the device is not limited in the embodiments of this application. For example, any device that can achieve the same function in the future is applicable to the embodiments of this application.

[0451] It is understood that, in the above-described method embodiments, the methods and operations implemented by a device (such as a network device or a terminal device) can also be implemented by components of the device (such as a chip or circuit).

[0452] The communication method provided by the embodiments of this application has been described in detail above with reference to Figures 7 and 9. The above communication method is mainly described from the perspective of interaction between terminal devices and network devices. It is understood that, in order to achieve the above functions, the terminal devices and network devices include corresponding hardware structures and / or software modules for performing each function.

[0453] Those skilled in the art will recognize that, based on the units and algorithm steps described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0454] The communication device provided in this application is described in detail below with reference to Figures 12 to 14. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, for details not described in detail, please refer to the method embodiments above; for brevity, some details will not be repeated.

[0455] This application embodiment can divide the transmitting or receiving device into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the division of functional modules according to each function as an example.

[0456] Figure 12 is a schematic block diagram of a communication device 10 provided in an embodiment of this application. The device 10 includes a transceiver module 11 and a processing module 12. The transceiver module 11 can implement corresponding communication functions, and the processing module 12 is used for data processing. In other words, the transceiver module 11 is used to perform operations related to receiving and sending, while the processing module 12 is used to perform other operations besides receiving and sending. The transceiver module 11 can also be referred to as a communication interface or a communication unit.

[0457] Optionally, the device 10 may further include a storage module 13, which can be used to store instructions and / or data. The processing module 12 can read the instructions and / or data in the storage module to enable the device to perform the operation of the device in the aforementioned method embodiments.

[0458] In one design, the device 10 may correspond to the terminal device in the above method embodiments, or a component of the terminal device (such as a chip).

[0459] The device 10 can implement the steps or processes corresponding to those executed by the terminal device in the above method embodiments. The transceiver module 11 can be used to perform transceiver-related operations of the terminal device in the above method embodiments, and the processing module 12 can be used to perform processing-related operations of the terminal device in the above method embodiments.

[0460] In one possible implementation, transceiver module 11 is configured to receive a first message indicating the reception of a first signal. Transceiver module 11 is also configured to receive a second message indicating a first resource set containing a first resource and a second resource, wherein the time-domain resources of the first resource are located on SBFD time units, and the time-domain resources of the second resource are located on non-SBFD time units. Transceiver module 11 is further configured to receive the first signal on resources other than the first and second resources.

[0461] In another possible implementation, transceiver module 11 is configured to receive first indication information, indicating that a first signal will be received on a first time-frequency resource. Transceiver module 11 is configured to receive second indication information, indicating a first ZP CSI-RS resource, which is a time-frequency resource not used for receiving the first signal on a non-SBFD time unit. Transceiver module 11 is configured to receive third indication information, indicating a second time-frequency resource, which is a subset of the first ZP CSI-RS resource, and is a time-frequency resource not used for receiving the first signal on an SBFD time unit. Transceiver module 11 is configured to receive the first signal on a third time-frequency resource within the first time-frequency resource on an SBFD time unit, wherein the third time-frequency resource is a time-frequency resource within the first time-frequency resource other than the second time-frequency resource. The transceiver module 11 is configured to receive a first signal on a fourth time-frequency resource within the first time-frequency resources at a non-SBFD time unit. The fourth time-frequency resource is a time-frequency resource within the first time-frequency resources other than the first ZP CSI-RS resource. Specifically, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with other time-frequency resources within the first ZP CSI-RS resource besides the second time-frequency resource.

[0462] When the device 10 is used to execute the method in FIG7, the transceiver module 11 can be used to execute the steps of sending and receiving information in the method, such as steps S710, S720, S730 and S740; the processing module 12 can be used to execute the processing steps in the method.

[0463] When the device 10 is used to execute the method in FIG9, the transceiver module 11 can be used to execute the steps of sending and receiving information in the method, such as steps S910, S920, S930, S940, S950 and S960; the processing module 12 can be used to execute the processing steps in the method.

[0464] It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0465] In another design, the device 10 may correspond to the network device in the above method embodiments, or to a component of the network device (such as a chip).

[0466] The device 10 can implement the steps or processes performed by the network device corresponding to the method embodiments described above. The transceiver module 11 can be used to perform the transceiver-related operations of the network device in the method embodiments described above, and the processing module 12 can be used to perform the processing-related operations of the network device in the method embodiments described above.

[0467] In one possible implementation, transceiver module 11 is configured to send a first message indicating receipt of a first signal. Transceiver module 11 is also configured to send a second message indicating a first resource set containing a first resource and a second resource, wherein the time-domain resources of the first resource are located on SBFD time units, and the time-domain resources of the second resource are located on non-SBFD time units. Transceiver module 11 is further configured to transmit the first signal on resources other than the first and second resources.

[0468] In another possible implementation, transceiver module 11 is configured to transmit first indication information, indicating reception of a first signal on a first time-frequency resource. Transceiver module 11 is configured to transmit second indication information, indicating a first ZP CSI-RS resource, which is a time-frequency resource not used for receiving the first signal on a non-SBFD time unit. Transceiver module 11 is configured to transmit third indication information, indicating a second time-frequency resource, which is a subset of the first ZP CSI-RS resource, and is a time-frequency resource not used for receiving the first signal on a sub-band full-duplex SBFD time unit. Transceiver module 11 is configured to transmit the first signal on a time-frequency resource in the first time-frequency resource other than the second time-frequency resource on an SBFD time unit. Transceiver module 11 is configured to transmit the first signal on a fourth time-frequency resource in the first time-frequency resource on a non-SBFD time unit, where the fourth time-frequency resource is a time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource. Wherein, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the time-frequency resources in the first ZP CSI-RS resource other than the second time-frequency resource.

[0469] When the device 10 is used to execute the method in FIG7, the transceiver module 11 can be used to execute the steps of sending and receiving information in the method, such as steps S710, S720, S730 and S740; the processing module 12 can be used to execute the processing steps in the method.

[0470] When the device 10 is used to execute the method in FIG9, the transceiver module 11 can be used to execute the steps of sending and receiving information in the method, such as steps S910, S920, S930, S940, S950 and S960; the processing module 12 can be used to execute the processing steps in the method.

[0471] It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0472] It should also be understood that the device 10 here is embodied in the form of a functional module. The term "module" here can refer to application-specific integrated circuits (ASICs), electronic circuits, processors (e.g., shared processors, proprietary processors, or group processors, etc.) and memories for executing one or more software or firmware programs, integrated logic circuits, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that device 10 may specifically be a mobility management network element in the above embodiments, and may be used to execute the various processes and / or steps corresponding to the mobility management network element in the above method embodiments; or, device 10 may specifically be a terminal device in the above embodiments, and may be used to execute the various processes and / or steps corresponding to the terminal device in the above method embodiments. To avoid repetition, further details are omitted here.

[0473] The apparatus 10 of each of the above-described solutions has the function of implementing the corresponding steps performed by the devices (such as terminal devices, network devices) in the above-described methods. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions; for example, the transceiver module can be replaced by a transceiver (for example, the sending unit in the transceiver module can be replaced by a transmitter, and the receiving unit in the transceiver module can be replaced by a receiver), and other units, such as processing modules, can be replaced by processors, which respectively execute the transceiver operations and related processing operations in each method embodiment.

[0474] In addition, the transceiver module 11 can also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing module can be a processing circuit.

[0475] Figure 13 is a schematic diagram of another communication device 20 provided in an embodiment of this application. The device 20 includes a processor 21, which is used to execute computer programs or instructions stored in a memory 22, or to read data / signaling stored in the memory 22, to perform the methods in the above-described method embodiments. Optionally, there may be one or more processors 21.

[0476] Optionally, as shown in FIG13, the device 20 further includes a memory 22 for storing computer programs or instructions and / or data. The memory 22 may be integrated with the processor 21 or may be disposed separately. Optionally, there may be one or more memories 22.

[0477] Optionally, as shown in FIG13, the device 20 further includes a transceiver 23 for receiving and / or transmitting signals. For example, the processor 21 is used to control the transceiver 23 to receive and / or transmit signals.

[0478] As one option, the device 20 is used to implement the operations performed by the terminal device in the various method embodiments described above.

[0479] It should be understood that the processor mentioned in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0480] It should also be understood that the memory mentioned in the embodiments of this application can be volatile memory and / or non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0481] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0482] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0483] Figure 14 is a schematic diagram of a chip system 30 provided in an embodiment of this application. The chip system 30 (or may also be called a processing system) includes logic circuitry 31 and an input / output interface 32.

[0484] The logic circuit 31 can be a processing circuit in the chip system 30. The logic circuit 31 can be coupled to a memory unit, calling instructions from the memory unit, enabling the chip system 30 to implement the methods and functions of the embodiments of this application. The input / output interface 32 can be an input / output circuit in the chip system 30, outputting processed information from the chip system 30, or inputting data or signaling information to be processed into the chip system 30 for processing.

[0485] As one approach, the chip system 30 is used to implement the operations performed by the terminal device in the various method embodiments described above.

[0486] For example, logic circuit 31 is used to implement the processing-related operations performed by the terminal device in the above method embodiments; input / output interface 32 is used to implement the sending and / or receiving-related operations performed by the terminal device in the above method embodiments.

[0487] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by the device in the above-described method embodiments.

[0488] For example, when the computer program is executed by a computer, it enables the computer to implement the methods executed by the terminal device or network device in the various embodiments of the above methods.

[0489] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods performed by a terminal device or network device in the above-described method embodiments.

[0490] This application also provides a communication system, including the aforementioned terminal device and network device.

[0491] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0492] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0493] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0494] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0495] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0496] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0497] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0498] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

A communication method characterized by comprising: include: Receive a first message, the first message indicating that a first signal has been received; Receive a second message, the second message indicating a first resource set containing a first resource and a second resource, wherein the time domain resources of the first resource are located on a sub-band full-duplex SBFD time unit, and the time domain resources of the second resource are located on a non-SBFD time unit; The first signal is received on resources other than the first and second resources. The method of claim 1, wherein The first resource set includes one or more of the following: Two periodic zero-power channel state information reference signal (ZP CSI-RS) resource sets, two semi-persistent ZP CSI-RS resource set tables, or two aperiodic ZP CSI-RS resource set tables, wherein the two periodic ZP CSI-RS resource sets include a first periodic ZP CSI-RS resource set and a second periodic ZP CSI-RS resource set, the two semi-persistent ZP CSI-RS resource set tables include a first semi-persistent ZP CSI-RS resource set table and a second semi-persistent ZP CSI-RS resource set table, and the two aperiodic ZP CSI-RS resource set tables include a first aperiodic ZP CSI-RS resource set table and a second aperiodic ZP CSI-RS resource set table; Wherein, the first resource is included in the first periodic ZP CSI-RS resource set, and the second resource is included in the second periodic ZP CSI-RS resource set; or, The first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table; or, The first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table. The method according to claim 2, characterized in that If the first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table, then the method further includes: Receive a third message, the third message including a first field and a second field; Wherein, the first field activates the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, The first field deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table. The method according to claim 2, characterized in that If the first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table, then the method further includes: A fourth message is received, the fourth message including a third field and a fourth field, the third field triggering the first resource in the first aperiodic ZP CSI-RS resource set table, and the fourth field triggering the second resource in the second aperiodic ZP CSI-RS resource set table. The method of claim 1, wherein The first resource set includes one or more of the following: A periodic non-zero power channel state information reference signal ZP CSI-RS resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table; The periodic ZP CSI-RS resource set table includes less than or equal to 2 ZP CSI-RS resource sets, the semi-persistent ZP CSI-RS resource set table includes less than or equal to 32 ZP CSI-RS resource sets, and the non-periodic ZP CSI-RS resource set table includes less than or equal to 6 or 7 ZP CSI-RS resource sets. The method according to claim 5, characterized in that If the first resource and the second resource are included in the semi-persistent ZP CSI-RS resource set table, the method further includes: Receive a fifth message, the fifth message including a fifth field and a sixth field, the fifth field activating the first resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field activating the second resource in the semi-persistent ZP CSI-RS resource set table; or, The fifth field deactivates the third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates the fourth resource in the semi-persistent ZP CSI-RS resource set table. The method according to claim 5, characterized in that If the first resource and the second resource are included in the aperiodic ZP CSI-RS resource set table, the method further includes: A sixth message is received, the sixth message including a seventh field and an eighth field, the seventh field triggering the first resource in the aperiodic ZP CSI-RS resource set table, and the eighth field triggering the second resource in the aperiodic ZP CSI-RS resource set table. The method of claim 1, wherein The first resource set includes one or more of the following: A periodic non-zero power channel state information reference signal (ZP CSI-RS) resource set, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table, each of the ZP CSI-RS resource sets comprising less than or equal to 16 ZP CSI-RS resources, each of the ZP CSI-RS resources comprising a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource, wherein the first resource belongs to the first ZP CSI-RS sub-resource and the second resource belongs to the second ZP CSI-RS sub-resource. The method of claim 8, wherein The first ZP CSI-RS sub-resource or the second ZP CSI-RS sub-resource includes at least one of the following parameters: Resource mapping parameters, period, or bias parameters. A communication method characterized by comprising: include: Send a first message, the first message indicating that a first signal has been received; Send a second message, the second message indicating a first resource set containing a first resource and a second resource, wherein the time domain resources of the first resource are located on a sub-band full-duplex SBFD time unit, and the time domain resources of the second resource are located on a non-SBFD time unit; Send the first signal on resources other than the first and second resources. The method of claim 10, wherein The first resource set includes one or more of the following: Two periodic zero-power channel state information reference signal (ZP CSI-RS) resource sets, two semi-persistent ZP CSI-RS resource set tables, or two aperiodic ZP CSI-RS resource set tables, wherein the two periodic ZP CSI-RS resource sets include a first periodic ZP CSI-RS resource set and a second periodic ZP CSI-RS resource set, the two semi-persistent ZP CSI-RS resource set tables include a first semi-persistent ZP CSI-RS resource set table and a second semi-persistent ZP CSI-RS resource set table, and the two aperiodic ZP CSI-RS resource set tables include a first aperiodic ZP CSI-RS resource set table and a second aperiodic ZP CSI-RS resource set table; Wherein, the first resource is included in the first periodic ZP CSI-RS resource set, and the second resource is included in the second periodic ZP CSI-RS resource set; or, The first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table; or, The first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table. The method of claim 11, wherein If the first resource is included in the first semi-persistent ZP CSI-RS resource set table, and the second resource is included in the second semi-persistent ZP CSI-RS resource set table, then the method further includes: Send a third message, the third message including a first field and a second field, wherein the first field activates the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activates the second resource in the second semi-persistent ZP CSI-RS resource set table; or, The first field deactivates the third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates the fourth resource in the second semi-persistent ZP CSI-RS resource set table. The method of claim 11, wherein If the first resource is included in the first aperiodic ZP CSI-RS resource set table, and the second resource is included in the second aperiodic ZP CSI-RS resource set table, then the method further includes: Send a fourth message, the fourth message including a third field and a fourth field, the third field triggering the first resource in the first aperiodic ZP CSI-RS resource set table, and the fourth field triggering the second resource in the second aperiodic ZP CSI-RS resource set table. The method of claim 10, wherein The first resource set includes one or more of the following: A periodic non-zero power channel state information reference signal (ZP CSI-RS) resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table, wherein the periodic ZP CSI-RS resource set table includes less than or equal to 2 ZP CSI-RS resource sets, the semi-persistent ZP CSI-RS resource set table includes less than or equal to 32 ZP CSI-RS resource sets, and the aperiodic ZP CSI-RS resource set table includes less than or equal to 6 or 7 ZP CSI-RS resource sets. The method of claim 14, wherein If the first resource and the second resource are included in the semi-persistent ZP CSI-RS resource set table, the method further includes: Send a fifth message, the fifth message including a fifth field and a sixth field, the fifth field activating the first resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field activating the second resource in the semi-persistent ZP CSI-RS resource set table; or, The fifth field deactivates the third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates the semi-persistent... Continue with the fourth resource in the ZP CSI-RS resource set table. The method of claim 14, wherein If the first resource and the second resource are included in the aperiodic ZP CSI-RS resource set table, the method further includes: A sixth message is sent, the sixth message including a seventh field and an eighth field, the seventh field triggering the first resource in the aperiodic ZP CSI-RS resource set table, and the eighth field triggering the second resource in the aperiodic ZP CSI-RS resource set table. A communication method characterized by comprising: include: Receive first indication information, the first indication information indicating that a first signal is received on a first time-frequency resource; Receive second indication information, the second indication information indicating a first ZP CSI-RS resource, the first ZP CSI-RS resource being a time-frequency resource not used for receiving the first signal on a non-subband full-duplex SBFD time unit; Receive third indication information, the third indication information indicating a second time-frequency resource, the second time-frequency resource being a subset of the first ZP CSI-RS resource, the second time-frequency resource being a time-frequency resource on the SBFD time unit that is not used to receive the first signal; In the SBFD time unit, the first signal is received on the third time-frequency resource in the first time-frequency resource, wherein the third time-frequency resource is the time-frequency resource in the first time-frequency resource other than the second time-frequency resource; In a non-SBFD time unit, a first signal is received on a fourth time-frequency resource in the first time-frequency resource, wherein the fourth time-frequency resource is a time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource; Wherein, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the time-frequency resources in the first ZP CSI-RS resource other than the second time-frequency resource. A communication method characterized by comprising: include: Send a first indication message, the first indication message indicating that a first signal is received on a first time-frequency resource; Send a second indication message, the second indication message indicating a first ZP CSI-RS resource, the first ZP CSI-RS resource being a time-frequency resource not used for receiving the first signal on a non-subband full-duplex SBFD time unit; Send a third indication message, the third indication message indicating a second time-frequency resource, the second time-frequency resource being a subset of the first ZP CSI-RS resource, the second time-frequency resource being a time-frequency resource on the SBFD time unit that is not used to receive the first signal; In the SBFD time unit, the first signal is transmitted on the third time-frequency resource in the first time-frequency resource, wherein the third time-frequency resource is the time-frequency resource in the first time-frequency resource other than the second time-frequency resource; In a non-SBFD time unit, the first signal is transmitted on a fourth time-frequency resource in the first time-frequency resource, wherein the fourth time-frequency resource is a time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource; Wherein, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the time-frequency resources in the first ZP CSI-RS resource other than the second time-frequency resource. The method according to claim 17 or 18, characterized in that The third indication information indicates the second time-frequency resource, including: The third indication information indicates at least one Channel State Information Reference Signal (CSI-RS) port, which is associated with the second time-frequency resource. The method according to claim 17 or 18, characterized in that The third indication information indicates the second time-frequency resource, including: The third indication information indicates at least one code division multiplexing (CDM) group, which is associated with the second time-frequency resource. The method according to claim 17 or 18, characterized in that The third indication information indicates the second time-frequency resource, including: The third indication information indicates the number of CSI-RS ports N, and the N CSI-RS ports are associated with the second time-frequency resource. The method of claim 21, wherein If the codebook type is configured as single panel, the codebook type is related to an antenna configuration of the network device, and indexes of the N CSI-RS ports include: and or and M / 2-(0~N / 2-1)-1, Wherein, M indicates the total number of antenna ports of the network device. The method of claim 21, wherein If the codebook type is configured as dual panel, the codebook type is related to an antenna configuration of the network device, and indexes of the N CSI-RS ports include: and or and (0~N / 2-1)+M / 2, Wherein, M indicates the total number of antenna ports of the network device. The method according to any one of claims 17 to 23, characterized in that The third indication information is configured in the first ZP CSI-RS resource, and the third indication information indicates the second time-frequency resource in the first ZP CSI-RS resource; or... The third indication information is configured in the first ZP CSI-RS resource set, and the third indication information indicates the first ZP CSI-RS resource set. The second time-frequency resource of each ZP CSI-RS resource in the source set; or, The third indication information is configured in the first ZP CSI-RS resource set table, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first ZP CSI-RS resource set table; or... The third indication information is configured in the PDSCH configuration or CSI reporting resource settings, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all ZP CSI-RS resource set tables. A communication device, characterized by Used to implement the method as described in any one of claims 1-9, or used to implement the method as described in any one of claims 17 or 19 to 24. The communication apparatus according to claim 25, characterized in that, The communication device includes a terminal device or a chip. A communication device, characterized by Used to implement the method as described in any one of claims 10-16, or used to implement the method as described in any one of claims 18 to 24. The communication apparatus according to claim 27, characterized in that, The communication device includes network equipment or a chip. A computer-readable storage medium, characterized by, The computer-readable storage medium stores computer instructions that, when executed, cause the method as described in any one of claims 1-24 to be performed. A computer program, characterized in that When the computer program is run, the method as described in any one of claims 1-24 is performed.

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