Communication method and communication device

Abstract

The invention provides a communication method. The method comprises: a terminal device receiving a first message and a second message from a network device, the first message indicating the terminal device to receive a first signal, the second message indicating a first resource set comprising a first resource and a second resource, the time domain resource of the first resource being located on a sub-band full duplex SBFD time unit, and the time domain resource of the second resource being located on a sub-band full duplex SBFD time unit; the 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 a resource other than the first resource and the second resource.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and in particular, to a communication method and a communication device. Background Art

[0002] Time division duplex (TDD) is widely used in the deployment of the new radio (NR) wireless communication system in the fifth generation (5G) mobile communication system. Limited allocation of uplink time domain resources results in reduced uplink coverage and increased latency of TDD. A possible method to enhance uplink coverage is to adopt subband full duplex (SBFD). SBFD divides the frequency band on the downlink symbol into one or more uplink subbands and one or more downlink subbands, and allows uplink transmission on the uplink subbands of the downlink symbol.

[0003] Specifically, for the antenna configuration on the SBFD network device side, the number of transceiver units (TxRUs) on the SBFD time unit and the non-SBFD time unit is different, and the channel environment and interference environment on the SBFD time unit and the non-SBFD time unit are different. The terminal device needs to measure and report the channel state information (CSI) on the SBFD time unit and the downlink (or flexible) time unit respectively. Therefore, how to determine the time-frequency resources that are not used for receiving or transmitting signals in this antenna configuration scenario becomes an urgent problem to be solved. Summary of the Invention

[0004] To solve the above technical problems, the present application provides a communication method and a communication device, in order to determine the time-frequency resources that cannot be used for receiving or transmitting signals in a scenario where the channel environment and interference environment on the SBFD time unit and the non-SBFD time unit are different.

[0005] In a first aspect, a communication method is provided. This method can be executed by a terminal device, or by a chip or a circuit, etc., and the present application does not limit this.

[0006] The communication method includes: receiving a first message, where the first message indicates receiving a first signal; receiving a second message, where the second message indicates a first resource set including a first resource and a second resource, the time domain resource of the first resource is on the SBFD time unit, and the time domain resource of the second resource is on the non-SBFD time unit; receiving the first signal on a resource other than the first resource and the second resource.

[0007] Based on the above technical solution, taking the execution entity as the terminal device 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 including a first resource and a second resource. The terminal device can receive the first signal on other resources except the first resource and the second resource (for example, receive a 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. It can be understood that 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, so as to configure the required resources on different time units in a scenario where the channel environment and interference environment on the SBFD time unit and the non-SBFD time unit are different, improving the flexibility of resource configuration, and based on the configured resources, the time-frequency resources that cannot be used for receiving or transmitting signals can be determined.

[0008] In combination with the first aspect, in some implementation manners 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. Among them, 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.

[0009] Based on the above technical solution, in order to be able to configure relevant resources for the SBFD time unit and the non-SBFD time unit respectively, the network device can configure one or more of 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 through a second message. Among them, the number of ZP CSI-RS resources included in each ZP CSI-RS resource set is the same as the number of ZP CSI-RS resources included in the current ZP CSI-RS resource set. Compared with the existing ZP CSI-RS resource configuration method (configuring one or more of 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), in this technical solution, by configuring multiple ZP CSI-RS resource set tables, the number of ZP CSI-RS resources is expanded so that the number of ZP CSI-RS resources can meet the requirements on the SBFD time unit and the non-SBFD time unit.

[0010] Combined with the first aspect, in some implementation manners 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, the method further includes: receiving a third message, where the third message includes a first field and a second field, where 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 a third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates a fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0011] Based on the above technical solution, if the first resource and the second resource are resources in a semi-persistent ZP CSI-RS resource set table, the network device can activate the semi-persistent ZP CSI-RS resource set through a third message.

[0012] In combination 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, the method further includes: receiving a third message #1, where the third message #1 includes a first field #1, and 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 a third resource in the first semi-persistent ZP CSI-RS resource set table and deactivates a fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0013] In combination with the first aspect, in some implementations of the first aspect, the third message includes a media access control (MAC) control element (CE).

[0014] In combination 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 the activation or deactivation of the ZP CSI-RS resource set in both the first semi-persistent ZP CSI-RS resource set table and the second semi-persistent ZP CSI-RS resource set table.

[0015] In combination 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, the method further includes: receiving a fourth message, where the fourth message includes a third field and a fourth field, and 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.

[0016] Based on the above technical solutions, if the first resource and the second resource are resources in the aperiodic ZP CSI-RS resource set table, the network device can trigger the aperiodic ZP CSI-RS resource set through the fourth message.

[0017] In combination with the first aspect, in certain 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, the method further includes: the terminal device receives a fourth message #1 from the network device, the fourth message #1 includes a third field #1, and 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.

[0018] In combination with the first aspect, in certain implementations of the first aspect, the fourth message includes downlink control information DCI.

[0019] In combination with the first aspect, in certain 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 according to the value of the second bit; or, if the first bit takes a second value, it indicates that 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 are triggered.

[0020] In combination with the first aspect, in certain 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. Among them, 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.

[0021] Based on the above technical solution, in order to be able to configure relevant resources for the SBFD time unit and the non-SBFD time unit respectively, the network device may configure one or more of a periodic non-zero power channel state information reference signal (ZPCSI-RS) resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table through a second message. Among them, the number of ZP CSI-RS resource sets included in each ZP CSI-RS resource set table is more than the number of ZP CSI-RS resource sets included in the current ZP CSI-RS resource set table. In this technical solution, it 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 on the SBFD time unit and the non-SBFD time unit.

[0022] Combined with the first aspect, in some implementation manners 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, where the fifth message includes a fifth field and a sixth field, 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 a third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates a fourth resource in the semi-persistent ZP CSI-RS resource set table.

[0023] Combined with the first aspect, in some implementation manners of the first aspect, the lengths of both the fifth field and the sixth field are 5 bits.

[0024] Combined with the first aspect, in some implementation manners of the first aspect, if the first resource and the second resource are included in the ZP CSI-RS resources in the aperiodic ZP CSI-RS resource set table, the method further includes: receiving a sixth message, where the sixth message includes a seventh field and an eighth field, 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.

[0025] In combination 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, and each of the ZP CSI-RS resource sets includes less than or equal to 32 ZP CSI-RS resources.

[0026] Based on the above technical solution, in order to be able to configure relevant resources for the SBFD time unit and the non-SBFD time unit respectively, the network device may configure one or more of 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 through a second message, where the number of ZP CSI-RS resources included in each ZP CSI-RS resource set is more than the number of ZP CSI-RS resources included in the current ZP CSI-RS resource set. In this technical solution, it 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 on the SBFD time unit and the non-SBFD time unit.

[0027] In combination 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, where each of the ZP CSI-RS resource sets includes less than or equal to 16 ZP CSI-RS resources, each of the ZP CSI-RS resources includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource, 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.

[0028] Based on the above technical solution, in order to be able to configure relevant resources for the SBFD time unit and the non-SBFD time unit respectively, the network device can configure, through a second message, one or more of a periodic non-zero power channel state information reference signal (ZPCSI-RS) resource set table, a semi-persistent ZP CSI-RS resource set table, or an aperiodic ZP CSI-RS resource set table. Wherein, each ZP CSI-RS resource includes two or more sub-resources. In this technical solution, it 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 on the SBFD time unit and the non-SBFD time unit.

[0029] In combination with the first aspect, in some implementation manners 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: a resource mapping parameter, a period, or a bias parameter.

[0030] In a second aspect, a communication method is provided. This method can be executed by a network device, or by a chip or a circuit, etc., and this application does not make any limitations in this regard.

[0031] This communication method includes: sending a first message, where the first message indicates receiving a first signal; sending a second message, where the second message indicates a first resource set including a first resource and a second resource, the time domain resource of the first resource is located on the SBFD time unit, and the time domain resource of the second resource is located on the non-SBFD time unit; sending the first signal on resources other than the first resource and the second resource.

[0032] Specifically, the possible form of the first resource set can refer to the description of the first resource set in the first aspect, which will not be elaborated here.

[0033] Exemplarily, the first resource set includes two semi-persistent ZP CSI-RS resource set tables, and 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. 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, where the third message 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 a third resource in the first semi-persistent ZP CSI-RS resource set table, and the second field deactivates a fourth resource in the second semi-persistent ZP CSI-RS resource set table.

[0034] Exemplarily, the first resource set includes two aperiodic ZP CSI-RS resource set tables, 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. 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, the method further includes: sending a fourth message, where the fourth message includes a third field and a fourth field, 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.

[0035] Exemplarily, the first resource set includes one semi-persistent ZP CSI-RS resource set table, and the semi-persistent ZP CSI-RS resource set table 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, where the fifth message includes a fifth field and a sixth field, 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 a third resource in the semi-persistent ZP CSI-RS resource set table, and the sixth field deactivates a fourth resource in the semi-persistent ZP CSI-RS resource set table.

[0036] Exemplarily, the first resource set includes an aperiodic ZP CSI-RS resource set table, the aperiodic ZP CSI-RS resource set table includes less than or equal to 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, the sixth message includes a seventh field and an eighth field, 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.

[0037] The technical effects of the method shown in the second aspect and its possible designs above can refer to the technical effects in the first aspect and its possible designs.

[0038] In a third aspect, a communication method is provided. This method can be executed by a terminal device, or by a chip or a circuit, etc., and the present application does not limit this.

[0039] The communication method includes: receiving first indication information, the first indication information indicating to receive 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 that is not used to receive the first signal in 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 that is not used to receive the first signal in an SBFD time unit; on an SBFD time unit, receiving the first signal on a third time-frequency resource in the first time-frequency resource, the third time-frequency resource being a time-frequency resource in the first time-frequency resource other than the second time-frequency resource; on a non-SBFD time unit, receiving the first signal on a fourth time-frequency resource in the first time-frequency resource, the fourth time-frequency resource being 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 resource in the first ZP CSI-RS resource other than the second time-frequency resource.

[0040] Based on the above technical solution, taking the execution entity as the terminal device as an example, the network device sends third indication information to the terminal device to indicate the second time-frequency resource in the first ZP CSI-RS resource, and this second time-frequency resource cannot be used for transmitting or receiving signals. As a result, the terminal device can receive the first signal on other resources except the second time-frequency resource in the first time-frequency resource indicated by the first indication information for receiving the first signal. Among them, 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 the scenario where the channel environment and interference environment are different on the SBFD time unit and the non-SBFD time unit, improve the flexibility of resource configuration, and determine the time-frequency resources that cannot be used for receiving or transmitting signals based on the configured resources.

[0041] Combined with the third aspect, in some implementation manners of the third aspect, the third indication information indicating the second time-frequency resource includes: the third indication information indicates at least one channel state information reference signal CSI-RS port, and the at least one CSI-RS port is associated with the second time-frequency resource.

[0042] Combined with the third aspect, in some implementation manners of the third aspect, the third indication information indicating the second time-frequency resource includes: the third indication information indicates at least one code division multiplexing CDM group, and the at least one CDM group is associated with the second time-frequency resource.

[0043] Combined with the third aspect, in some implementation manners of the third aspect, the third indication information indicating the second time-frequency resource includes: 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.

[0044] Combined with the third aspect, in some implementation manners of the third aspect, if the codebook type is configured as a single panel, the codebook type is related to the antenna configuration of the network device, and the indexes of the N CSI-RS ports include: and Or, and M / 2-(0~N / 2-1)-1, where the M indicates the total number of antenna ports of the network device.

[0045] Combined with the third aspect, in some implementation manners of the third aspect, if the codebook type is configured as a double panel, the codebook type is related to the antenna configuration of the network device, and the indexes of the N CSI-RS ports include: and Or, and (0~N / 2-1)+M / 2, where the M indicates the total number of antenna ports of the network device.

[0046] In combination with the third aspect, in some implementation manners of the third aspect, the third indication information is configured in the first ZP CSI-RS resource, and the third indication information indicates a second time-frequency resource in the first ZP CSI-RS resource; or, the third indication information is configured in a first set of ZP CSI-RS resources, and the third indication information indicates the second time-frequency resources of each ZP CSI-RS resource in the first set of ZP CSI-RS resources; or, the third indication information is configured in a table of the first set of ZP CSI-RS resources, and the third indication information indicates the second time-frequency resources of each ZP CSI-RS resource in the table of the first set of ZP CSI-RS resources; or, the third indication information is configured in the PDSCH configuration or the CSI reporting resource setting, and the third indication information indicates the second time-frequency resources of each ZP CSI-RS resource in all tables of the set of ZP CSI-RS resources.

[0047] Based on the above technical solution, the third indication information can indicate the second time-frequency resource by indicating the CSI-RS port, the CDM group, or the number of CSI-RS ports, improving the flexibility of the solution.

[0048] In a fourth aspect, a communication method is provided. This method may be executed by a network device, or may be executed by a chip, a circuit, etc., and this application does not make any limitation thereto.

[0049] The communication method includes: sending first indication information, where the first indication information indicates receiving a first signal on a first time-frequency resource; sending second indication information, where the second indication information indicates a first ZP CSI-RS resource, and the first ZP CSI-RS resource is a time-frequency resource that is not used for receiving the first signal in a non-SBFD time unit; sending third indication information, where the third indication information indicates a second time-frequency resource, and the second time-frequency resource is a subset of the first ZP CSI-RS resource, and the second time-frequency resource is a time-frequency resource that is not used for receiving the first signal in an SBFD time unit; on the SBFD time unit, sending the first signal on a third time-frequency resource in the first time-frequency resource, where the third time-frequency resource is a time-frequency resource in the first time-frequency resource other than the second time-frequency resource; on the non-SBFD time unit, sending the first signal on a fourth time-frequency resource in the first time-frequency resource, 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; where 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.

[0050] Specifically, for the related description of the third indication information, reference can be made to the description of the third indication information in the third aspect, which will not be elaborated here.

[0051] For the technical effects of the method shown in the above fourth aspect and its possible designs, reference can be made to the technical effects in the third aspect and its possible designs.

[0052] In a fifth aspect, a communication device is provided. The communication device is used to execute the above first aspect, third aspect, and any of their implementation manners. Specifically, the communication device includes a processor and a memory, where the memory is used to store a computer program; the processor is used to call and run the computer program from the memory, so that the communication device executes the above first aspect, third aspect, and any of their implementation manners.

[0053] In one implementation manner, the communication device is a terminal device. When the communication device is a terminal device, the transceiver unit may be a transceiver, or an input / output interface. The processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0054] In another implementation manner, the communication device may be a chip, a chip system, or a circuit in a terminal device. At this time, the transceiver unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit, etc. on the chip, the chip system, or the circuit; the processing unit may be at least one processor, a processing circuit, or a logic circuit, etc.

[0055] In a sixth aspect, a communication device is provided. The communication device is used to execute the above second aspect, fourth aspect, and any of their implementation manners. Specifically, the communication device includes a processor and a memory, where the memory is used to store a computer program; the processor is used to call and run the computer program from the memory, so that the network device executes the above second aspect, fourth aspect, and any of their implementation manners.

[0056] In one implementation manner, the communication device is a network device. When the communication device is a network device, the transceiver unit may be a transceiver, or an input / output interface. The processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0057] In another implementation manner, the communication device may be a chip, a chip system, or a circuit in a network device. At this time, the transceiver unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit, etc. on the chip, the chip system, or the circuit; the processing unit may be at least one processor, a processing circuit, or a logic circuit, etc.

[0058] In a seventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is run, the method according to any one of the first to fourth aspects is executed.

[0059] In an eighth aspect, a computer program product including instructions is provided. When the computer program product is run, the method provided by any one of the first to fourth aspects is executed.

[0060] In a ninth aspect, a chip is provided. The chip includes a processor and a communication interface. The processor reads instructions through the communication interface and executes the method provided by any one of the first to fourth aspects.

[0061] Optionally, as an implementation, the chip further includes a memory. The memory stores a computer program or instructions. The processor is configured to execute the computer program or instructions stored on the memory. When the computer program or instructions are executed, the processor is configured to execute the method provided by any one of the first to fourth aspects.

[0062] In a tenth aspect, a communication system is provided, including the communication device according to the fifth aspect and the communication device according to the sixth aspect.

[0063] In an eleventh aspect, a computer program is provided. When the computer program is run, the method provided by any one of the first to fourth aspects is executed. Description of the Drawings

[0064] Figure 1 is a schematic diagram of a communication system to which the present application is applicable.

[0065] Figure 2 (a) to (d) therein are schematic diagrams of time-domain resource partitioning.

[0066] Figure 3 (a) to (c) therein are schematic diagrams of antenna configurations.

[0067] Figure 4 is a schematic diagram of time-frequency resource allocation of CSI-RS in one RB.

[0068] Figure 5 is a schematic diagram of the spatial position of CSI-RS ports.

[0069] Figure 6 is a schematic diagram of a signaling structure of MAC CE.

[0070] Figure 7 is a schematic flowchart of a communication method provided by an embodiment of the present application.

[0071] Figure 8 Among them, (a) and (b) are schematic diagrams of the activation / deactivation message provided by the embodiments of the present application.

[0072] Figure 9 It is a schematic flowchart of another communication method provided by the embodiments of the present application.

[0073] Figure 10 It is a schematic diagram of the second time-frequency resource provided by the embodiments of the present application.

[0074] Figure 11 It is a schematic diagram of the CSI-RS port provided by the embodiments of the present application.

[0075] Figure 12 It is a schematic block diagram of the communication device provided by the embodiments of the present application.

[0076] Figure 13 It is a schematic diagram of another communication device provided by the embodiments of the present application.

[0077] Figure 14 It is a schematic diagram of a chip system provided by the embodiments of the present application. Detailed implementation manners

[0078] For the convenience of understanding the embodiments of the present application, the following points are explained.

[0079] First, in the present application, "for indicating" may include for direct indication and for indirect indication. When it is described that a certain indication information is used to indicate A, it may include that the indication information directly indicates A or indirectly indicates A, and it does not mean that A must be included in the indication information.

[0080] The information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. The information to be indicated can be sent as a whole, or can be divided into multiple sub-information and sent separately. Moreover, the sending periods and / or sending timings of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending periods and / or sending timings of these sub-information can be predefined, for example, predefined according to a protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can include, 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. Among them, the MAC layer signaling, for example, includes MAC control element (CE); the physical layer signaling, for example, includes Downlink control information (DCI).

[0081] Second, "at least one" shown in this application means one or more, and "a plurality" means two or more. In addition, in the embodiments of this application, "first", "second", and various numerical numbers (for example, "#1", "#2", etc.) are only for the convenience of description and are not used to limit the scope of the embodiments of this application. The magnitude of the sequence numbers of the following processes does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of this application. It should be understood that the objects described in this way can be interchanged under appropriate circumstances so as to be able to describe the solutions other than the embodiments of this application. In addition, in the embodiments of this application, words such as "710" and "720" are only identifiers made for the convenience of description and do not limit the order of execution steps.

[0082] Third, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be construed as being more preferred or more advantageous than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific way.

[0083] Fourth, the "saving" involved in the embodiments of the present application may refer to saving in one or more memories. The one or more memories may be separately provided, or may be integrated in an encoder, a decoder, a processor, or a communication device. The one or more memories may also be partly separately provided and partly integrated in a decoder, a processor, or a communication device. The type of the memory may be any form of storage medium, which is not limited in the present application.

[0084] Fifth, the "protocol" involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include LTE protocol, NR protocol, and related protocols applied to future communication systems, which are not limited in the present application.

[0085] Sixth, in the embodiments of the present application, "in... case", "when...", and "if..." may sometimes be used interchangeably. It should be noted that when the difference is not emphasized, the meanings they express are the same.

[0086] Seventh, in the embodiments of the present application, each term and English abbreviation, such as Radio Resource Control (RRC), etc., are exemplary examples given for convenient description and should not constitute any limitation to the present application. The present application does not exclude the possibility of defining other terms in existing or future protocols that can achieve the same or similar functions.

[0087] Eighth, the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the preceding and following associated objects.

[0088] Next, the technical solutions in the embodiments of the present application will be specifically described with reference to the accompanying drawings.

[0089] The technical solutions of the embodiments of the present application can be applied to various communication systems. For example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. The technical solutions of the embodiments of the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (machine type communication, MTC), and Internet of things (IoT) communication system or other communication systems.

[0090] To facilitate understanding of the embodiments of the present application, illustratively, firstly, in combination with Figure 1 To introduce the communication system to which the present application is applicable. The terminal equipment in the embodiments of the present application may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a relay station, a remote station, a remote terminal, a mobile device, a user terminal, a user equipment (UE), a terminal, a wireless communication device, a user agent or a user device. The terminal equipment may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile communication network (PLMN) or a terminal device in a future Internet of Vehicles, etc., and the embodiments of the present application are not limited to this.

[0091] Exemplarily, in the embodiments of the present application, a wearable device can also be referred to as a wearable intelligent device, which is a general term for devices developed by applying wearable technology to the intelligent design of daily wear. Such as glasses, gloves, watches, clothing, shoes, etc. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions that can achieve complete or partial functions without relying on a smart phone. For example: smart watches or smart glasses, etc. In addition, there can also be portable devices that only focus on a certain type of application function and need to cooperate with other devices such as smart phones. Such as various smart bracelets and smart jewelry for physical sign monitoring.

[0092] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, so as to achieve an intelligent network of human-machine interconnection and object-object interconnection. In the embodiments of the present application, IoT technology can achieve massive connection, deep coverage, and power saving for terminals through, for example, narrow band (NB) technology.

[0093] In addition, in the embodiments of the present application, the terminal device can also include sensors. The main functions include collecting data (for some terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0094] The network device in the embodiments of the present application can be any communication device with wireless transceiver functions for communicating with terminal devices. The 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) in a wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc. It can also be a 5G system, such as gNB in an NR system, or a transmission point (TRP or TP), one or a group of antenna panels of a base station in a 5G system (including multiple antenna panels), or, it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.

[0095] In different systems, the CU (or CU-CP and CU-UP), DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network can also be an open radio access network (O-RAN) architecture. In the ORAN system, the CU can also be called O-CU (open CU), the DU can also be called O-DU, the CU-CP can also be called O-CU-CP, the CU-UP can also be called O-CU-UP, and the RU can also be called O-RU. Any one of the CU (or CU-CP, CU-UP), DU, and RU in the present application can be implemented through a software module, a hardware module, or a combination of a software module and a hardware module.

[0096] The network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airplanes, balloons, and satellites in the air. In the embodiments of the present application, the scenarios where the network device and the terminal device are located are not limited.

[0097] In the embodiments of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system can be any one or more computer operating systems that implement service processing through processes. For example, an operating system, an operating system, an operating system, an operating system or an operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software.

[0098] In addition, various aspects or features of the present application can be implemented as a method, an apparatus, or an article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" used in the present application covers 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 (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0099] To facilitate the understanding of the embodiments of the present application, first, a communication system shown in Figure 1 will be taken as an example to detail the communication system applicable to the embodiments of the present application. As shown in Figure 1 , the communication system 100 may include at least one network device 101 and at least one terminal device 102 to 107. Among them, 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 through a wireless link. Each network device can provide communication coverage for a specific geographical area and can communicate with the terminal devices located within the coverage area.

[0100] Optionally, direct communication can be established between terminal devices. For example, device-to-device (D2D) technology can be used to achieve direct communication between terminal devices. As Figure 1 shown, direct communication can be established between terminal devices 105 and 106, and between terminal devices 105 and 107 using D2D technology. Terminal device 106 and terminal device 107 can communicate with terminal device 105 individually or simultaneously.

[0101] Terminal devices 105 to 107 can also communicate with network device 101 respectively. For example, they can communicate directly with network device 101, such as terminal devices 105 and 106 in the figure can communicate directly with network device 101. They can also communicate indirectly with network device 101, such as Figure 1 terminal device 107 in the figure communicates with network device 101 via terminal device 105.

[0102] Each communication device can be configured with multiple antennas. For each communication device in communication system 100, the multiple configured antennas can include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals. Therefore, communication between the communication devices in communication system 100 can be achieved through multi-antenna technology.

[0103] The interface between the network device and the terminal device can be the Uu interface (or also known as the air interface). Of course, in future communications, the names of these interfaces may remain unchanged, or they may be replaced by other names, which is not limited in this application. Exemplarily, the communication between the network device and the terminal device follows a certain protocol layer structure. Network layering is to perform tasks such as data sending, forwarding, packing or unpacking, and loading or extracting control information of network nodes (such as network devices and terminal devices) by different hardware and software modules respectively. This can make the complex problem of two-way communication and network interconnection relatively simple.

[0104] It should be understood that Figure 1 only a simplified schematic diagram for easy understanding, communication system 100 may further include other network devices or may further include other terminal devices ( Figure 1 not shown). For example, communication system 100 may further include core network devices. On the one hand, the access network device provides a wireless access connection for the terminal device, and can send data to the terminal device or receive data sent by the terminal device; on the other hand, the access network device is also connected to the core network device, and can forward the data received from the terminal device to the core network, or receive the data that needs to be sent to the terminal device from the core network.

[0105] Exemplarily, the communication system 100 may further include an Application Function (AF) network element, which is a control plane network function provided by the operator network and is used to provide application layer information; the communication system 100 may further include a Session Management Function (SMF) network element, which is a control plane network function provided by the operator network. In the embodiments of the present application, when the communication system 100 includes an AF network element and an SMF network element, the AF may send service-related information to the network device through the SMF.

[0106] To facilitate the understanding of the embodiments of the present application, some basic concepts related to the present application are briefly described. It should be understood that the basic concepts introduced below are described by taking the basic concepts specified in the NR protocol as an example, but it is not limited that the embodiments of the present application can only be applied to the NR system. Therefore, the standard names that appear when describing by taking the NR system as an example are all functional descriptions, and the specific names are not limited, only indicating the functions of the devices, and can be correspondingly extended to other future systems.

[0107] 1. Time Division Duplex (TDD): Widely used in the deployment of 5G wireless communication systems. TDD divides the time domain resources into uplink and downlink. For example, a possible TDD uplink / downlink configuration is DDDSU, as shown in (a) below, where D represents the downlink (DL) time slot, and each symbol in the downlink time slot is a downlink symbol, U represents the uplink (UL) time slot, and each symbol in the uplink time slot is an uplink symbol, and S is the special (S) time slot, and the special time slot includes at least flexible symbols. The limited allocation of uplink time domain resources results in reduced uplink coverage and increased latency of TDD. Figure 2 As shown in (a) below, where D represents the downlink (DL) time slot, and each symbol in the downlink time slot is a downlink symbol, U represents the uplink (UL) time slot, and each symbol in the uplink time slot is an uplink symbol, and S is the special (S) time slot, and the special time slot includes at least flexible symbols. The limited allocation of uplink time domain resources results in reduced uplink coverage and increased latency of TDD.

[0108] Exemplarily, a possible method to enhance uplink coverage is to adopt Subband Full Duplex (SBFD). Among them, SBFD includes Subband Overlapping Full Duplex and Subband Non-Overlapping Full Duplex.

[0109] Specifically, SBFD can be understood as dividing the frequency bands on the downlink symbols and / or flexible symbols into one or more uplink subbands and one or more downlink subbands, and allowing uplink transmission on the uplink subbands of the downlink symbols. Among them, the subbands obtained by division (or called SBFD subbands) can be understood as: composed of 1 Resource Block (RB) or a group of consecutive RBs for the same transmission direction.

[0110] Compared with 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.

[0111] Currently, the base station supports full duplex (FD) SBFD, that is, it can transmit on the uplink sub-band and receive on the downlink sub-band simultaneously in one time slot; the UE supports half duplex (HF) SBFD, that is, it can only transmit on the uplink sub-band or only receive on the downlink sub-band in one time slot.

[0112] For convenience, the symbol with both uplink sub-band and downlink sub-band divided on the frequency band is called an SBFD symbol, denoted as X (to distinguish from D, U, S). Then the uplink / downlink configurations dedicated to SBFD usually include the following three types: XXXXX, XXXXU, and DXXXU as Figure 2 shown in (b) to (d) of the figure. Among them, the SBFD symbol can be understood as the symbol with the sub-band used by the network device for SBFD operation. The SBFD symbol can also be called an SBFD time unit. The non-SBFD time units include uplink time units, downlink time units, and / or flexible time units (such as the U time slot, D time slot, or S time slot shown in (a) above). Figure 2 It should be noted that the time unit involved in this application can refer to a time slot, a symbol, or other time domain ranges in the time domain, and no specific limitation is made in this regard. For example, the SBFD time unit can be an SBFD time slot. Optionally, the time slot including SBFD symbols can be called an SBFD time slot. For example, the SBFD time slot only includes SBFD symbols, or the SBFD time slot includes at least one SBFD symbol. Also, for example, the non-SBFD time unit can be a non-SBFD time slot. Optionally, the time slot that does not include SBFD symbols can be called a non-SBFD time slot.

[0113] 2. Antenna configuration: The antenna configuration on the TDD network device side is as

[0114] shown in (a) of the figure. The transceiver on the TDD network device side shares an antenna array. Assuming the total number of antenna elements is L (the L antenna elements shown in (a) of the figure), the number of transceiver units (Tx) and receive units (Rx) is K each (the K Tx and K Rx shown in (a) of the figure). Figure 3 shown in (a) of the figure. The transceiver on the TDD network device side shares an antenna array. Assuming the total number of antenna elements is L (the L antenna elements shown in (a) of the figure), the number of transceiver units (Tx) and receive units (Rx) is K each (the K Tx and K Rx shown in (a) of the figure). Figure 3 shown in (a) of the figure. The transceiver on the TDD network device side shares an antenna array. Assuming the total number of antenna elements is L (the L antenna elements shown in (a) of the figure), the number of transceiver units (Tx) and receive units (Rx) is K each (the K Tx and K Rx shown in (a) of the figure). Figure 3 shown in (a) of the figure. The transceiver on the TDD network device side shares an antenna array. Assuming the total number of antenna elements is L (the L antenna elements shown in (a) of the figure), the number of transceiver units (Tx) and receive units (Rx) is K each (the K Tx and K Rx shown in (a) of the figure).

[0115] In the downlink time unit (e.g., downlink time slot or symbol, etc.), K transmitters (Tx) are linked to the antenna panel; in the uplink time unit, K receivers (Rx) are linked to the antenna panel. The number of units and antenna elements used for transmission and reception is the same.

[0116] The antenna configurations on the SBFD network device side are divided into two categories:

[0117] The first type of SBFD network device side antenna configuration is as shown in Figure 3 (b) below, including two antenna panel groups (such as antenna panel group #1 and antenna panel group #2 shown in Figure 3 (b) below). Each antenna panel group includes L antenna elements, and the number of transmitters (Tx) and receivers (Rx) for both transmission and reception is K. In the downlink time unit, K transmitters (Tx) are linked to one of the antenna panel groups; in the uplink time unit, K receivers (Rx) are linked to the other antenna panel; in the SBFD time unit, K transmitters (Tx) are linked to one of the antenna panels, and at the same time, K receivers (Rx) are linked to the other antenna panel. In this type of SBFD antenna configuration, by adding a new antenna panel group, the number of transceiver units in the SBFD time unit and the non-SBFD time unit is ensured to be the same.

[0118] The second type of SBFD network device side antenna configuration is as shown in Figure 3 (c) below, including two antenna panel groups. Each antenna panel group includes L / 2 antenna elements, and the number of transmitters (Tx) and receivers (Rx) for both transmission and reception is K. In the downlink time unit, K transmitters (Tx) are linked to both antenna panel groups; in the uplink time unit, K receivers (Rx) are linked to both antenna panels; in the SBFD time unit, K / 2 transmitters (Tx) are linked to one of the antenna panels, and at the same time, K / 2 receivers (Rx) are linked to the other antenna panel. In this type of SBFD antenna configuration, the number of transceiver units in the SBFD time unit and the non-SBFD time unit is different.

[0119] 3. Channel State Information (CSI) measurement: The network device needs to know the CSI between the network device and the terminal device to help the network device perform downlink scheduling, downlink link adaptation, and determine the transmission settings related to multiple-input multiple-output (MIMO) technology.

[0120] Exemplarily, a method for a network device to obtain CSI is as follows: The network device sends a channel state information reference signal (CSI-RS) to the terminal device. The terminal device receives and measures the CSI-RS to obtain CSI, and then reports it to the network device.

[0121] It should be noted that the channel environment and interference environment on the SBFD time unit and the downlink (or flexible) time unit are different. The terminal device needs to measure and report the CSI on the SBFD time unit and the downlink (or flexible) time unit respectively. This may be caused by multiple reasons, including:

[0122] 1) The network device adopts the above-mentioned second type of SBFD network device side antenna configuration, that is, the number of transmit antenna ports of the network device on the SBFD time unit and the downlink (or flexible) time unit is different. Therefore, the downlink channels on the SBFD time unit and the downlink (or flexible) time unit are different.

[0123] 2) On the SBFD time unit, some terminal devices receive downlink signals, and some terminal devices send uplink signals, which will cause the terminal device to suffer from severe cross-link interference (CLI), that is, the interference of the uplink to the downlink. However, on the downlink time unit, all terminal devices are receiving downlink signals, so the terminal device will not be affected by CLI.

[0124] 4. Resource configuration: In order to enable the terminal device to measure and report the CSI on the SBFD time unit and the downlink (or flexible) time unit, the network device can configure two sets of non-zero power CSI-RS (non-zero power CSI-RS, NZP CSI-RS) resources for the terminal device, which are respectively used for channel measurement on the SBFD time unit and the downlink (or flexible) time unit. Optionally, the network device will also configure two sets of NZP CSI-RS resources and / or two sets of CSI interference measurement (CSI interference measurement, CSI-IM) resources for the terminal device, which are respectively used for interference measurement based on NZP CSI-RS and / or based on CSI-IM on the SBFD time unit and the downlink (or flexible) time unit.

[0125] If the network device adopts the above-mentioned second type of SBFD network device-side antenna configuration, the configurations of the above two sets of NZP CSI-RS resources for channel measurement are different. For example, the number of ports and time-frequency resources of the above two sets of NZP CSI-RS resources for channel measurement are 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 is different, so the number of ports for the network device to send CSI-RS in the SBFD time unit and the downlink (or flexible) time unit is also different; further, the time-frequency resources used by CSI-RS are related to the number of ports of CSI-RS, so the time-frequency resources for the network device to send CSI-RS in the SBFD time unit and the downlink (or flexible) time unit are also different. For specific details, please refer to Background Art 4. Similarly, the configurations of the above two sets of NZP CSI-RS resources for interference measurement are also different.

[0126] Finally, in order for the terminal device to perform CSI measurement on NZP CSI-RS resources and CSI-IM resources, the network device cannot send a physical downlink shared channel (PDSCH) on these resources, that is, when the network device sends a PDSCH, it will perform rate matching based on these resources. Similarly, the terminal device cannot receive a PDSCH on these resources either. Therefore, the network device configures zero power CSI-RS (ZP CSI-RS) resources for the terminal device. Among them, the ZP CSI-RS resources can cover the above-mentioned NZP CSI-RS resources and CSI-IM resources for channel measurement and interference measurement in the time domain and frequency domain. By configuring ZP CSI-RS resources for the terminal device, the network device informs the terminal device that the network device will not send a PDSCH on the ZP CSI-RS resources; after receiving the ZP CSI-RS resources, the terminal device will not receive a PDSCH on the ZP CSI-RS resources either.

[0127] 5. CSI-RS Resources: The current protocol (such as TS 38.211) gives the configuration method of CSI-RS resources, which is summarized as follows:

[0128] For any CSI-RS, the UE maps the CSI-RS sequence r(m) to the resource element (RE) (k, l) according to the following formula p,μ :

[0129]

[0130]

[0131]

[0132]

[0133] n = 0, 1,...

[0134] where RE(k, l) p,μ is located in the resource block (RB) used by CSI-RS and is configured by the network device for the user equipment. The parameter descriptions in the formula are as follows:

[0135] (or denoted as n s,f ) is the time slot number of the time slot where CSI-RS is located within a system frame.

[0136] k is the subcarrier index, and k = 0 indicates subcarrier 0 in common resource block (CRB) 0.

[0137] l is the OFDM symbol index in a time slot. If a time slot includes 14 OFDM symbols, then l = 0, 1,..., 13.

[0138] is the number of subcarriers in an RB, usually

[0139] ρ represents the density of CSI-RS in the frequency domain, which is given by the density field in the RRC cell CSI-RS-ResourceMapping. Here, the specific information elements included in CSI-RS-ResourceMapping are not detailed. Refer to the description of the CSI-RS-ResourceMapping field in the current protocol.

[0140] It should be understood that within the configured CSI-RS bandwidth, a CSI-RS can be configured for each RB, and this mode is called CSI-RS density of 1. It is also possible to configure a CSI-RS every other RB, and this mode is called CSI-RS density of 0.5. For the case of density 0.5, the CSI-RS configuration information indicates which specific RB (the RB corresponding to the odd index or the even index) in the two RBs carries the CSI-RS.

[0141] X represents the number of ports of CSI-RS, which is indicated by the number of ports (nrofPorts) field in the RRC cell CSI-RS-ResourceMapping.

[0142] βCSIRs Indicates the power control parameter, which is determined according to the power control (powerControlOffsetSS) field in the RRC cell NZP-CSI-RS-Resource.

[0143] 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 field cdm-Type 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, and l′ and w t (l′) indicates the time-domain OCC used by a CDM group.

[0144] Table 1: Locations within a slot of CSI-RS

[0145]

[0146]

[0147] Table 2: Sequence w corresponding to CDM type 'noCDM' f (k′) and wx(l′)

[0148] Index <![CDATA[w f (0)]]> <![CDATA[w t (0)]]> 0 1 1

[0149] Table 3: Sequence w corresponding to CDM type 'fd-CDM2' f (k′) and w t (l′)

[0150] Index <![CDATA[[w f (0) w f (1)]]]> <![CDATA[w t (0)]]> 0 [+1 +1] 1 1 [+1 -1] 1

[0151] Table 4: Sequence w corresponding to CDM type 'cdm4-FD2-TD2' f (k′) and w t (l′)

[0152]

[0153]

[0154] Table 5: Sequence w corresponding to CDM type 'cdm8-FD2-TD4' f (k′) and w t (l′)

[0155] Index <![CDATA[[w f (0) w f (1)]]]> <![CDATA[[w t (0) w t (1) w t (2) w t (3)]]]> 0 [+1 +1] [+1 +1 +1 +1] 1 [+1 -1] [+1 +1 +1 +1] 2 [+1 +1] [+1 -1 +1 -1] 3 [+1 -1] [+1 -1 +1 -1] 4 [+1 +1] [+1 +1 -1 -1] 5 [+1 -1] [+1 +1 -1 -1] 6 [+1 +1] [+1 -1 -1 +1] 7 [+1 -1] [+1 -1 -1 +1]

[0156] The time domain position l in Table 1 0 ∈ {0, 1, ..., 13} and l 1 ∈ {2, 3, ..., 12} are indicated by the fields firstOFDMSymbolInTimeDomain and firstOFDMSymbolInTimeDomain2 in the RRC cell CSI-RS-ResourceMapping.

[0157] The frequency domain position k in Table 1 i is determined according to the field frequencyDomainAllocation in the RRC cell CSI-RS-ResourceMapping. This field indicates k in the form of a bitmap i .

[0158] The antenna port number p is determined by the following formula:

[0159] p = 3000 + s + jL;

[0160] j = 0, 1, ..., N / L - 1

[0161] s = 0, 1, ..., L - 1;

[0162] 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 numbering order of the CDM groups is: first in the frequency domain and then in the time domain. It should be understood that the counting order of the CSI-RS ports is: code domain → frequency domain → time domain.

[0163] In summary, according to the configuration method of the CSI-RS resources described by the above formula and Table 1, Figure 4 a time-frequency resource allocation example of CSI-RS in 1 RB is given. From Figure 4 it can be seen that the CDM type indicates the number of ports that the resources of each different depth color can be multiplexed.

[0164] Next, the RB (starting position and number) and time slot (time slot offset and repetition period) used by CSI-RS will be described:

[0165] The RBs on which the UE transmits CSI-RS are given by the fields freqBand and density in the RRC cell CSI-RS-ResourceMapping. Among them, freqBand indicates the frequency bandwidth used by CSI-RS, including the starting RB and the number of RBs N, that is, the frequency bandwidth used by CSI-RS is N consecutive RBs starting from the starting RB. The starting RB and the number of RBs N are referenced to a partial bandwidth (BandwidthPart, BWP).

[0166] For periodic CSI-RS and semi-persistent CSI-RS, as indicated by the field resourceType in the RRC cell CSI-ResouceConfig, the network device will repeatedly send CSI-RS in time, and the terminal device will also repeatedly receive CSI-RS in time. The repetition period and slot offset are indicated by the field CSI-ResourcePeriodicityAndOffset in the RRC cell NZP-CSI-RS-Resource.

[0167] The pattern of REs used for CSI-RS on each RB of each time slot is the same.

[0168] Exemplarily, the spatial positions of CSI-RS ports are as Figure 5 shown Figure 5 for the case where the network device's downlink antenna configuration is a single panel. Among them, N 1 is the number of antenna elements in one polarization direction in the horizontal direction, N 2 is the number of antenna elements in one polarization direction in the vertical direction, and N 1 is the number of antenna panels. The arrangement order of CSI-RS ports in space is to arrange in the vertical direction first, then in the horizontal direction, then in the polarization direction, and finally in the antenna panel. Currently, the spatial positions corresponding to different CSI-RS port numbers supported by the protocol are shown in Table 6 (single panel) and Table 7 (multi-panel).

[0169] Table 6: Supported configuration as (N 1 , N 2 )

[0170]

[0171]

[0172] Table 7: Supported configuration as (N g , N 1 , N 2 )

[0173]

[0174] 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 cell: ZP-CSI-RS-ResourceSet). For example, the network device configures via higher-layer signaling:

[0175] Aperiodic ZP CSI-RS Resource Set Table (higher-layer cell: aperiodic-ZP-CSI-RS-ResourceSetsToAddModList)

[0176] An aperiodic ZP CSI-RS resource set table includes at most 3 ZP CSI-RS resource sets (higher-layer cell: ZP-CSI-RS-Resource).

[0177] Semi-persistent ZP CSI-RS Resource Set Table (higher-layer cell: sp-ZP-CSI-RS-ResourceSetsToAddModList)

[0178] A semi-persistent ZP CSI-RS resource set table includes at most 16 ZP CSI-RS resource sets.

[0179] Periodic ZP CSI-RS Resource Set (higher-layer cell: p-ZP-CSI-RS-ResourceSet), it should be understood that the network device only configures 1 periodic ZP CSI-RS resource set for the terminal device.

[0180] Each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0181] ZP CSI-RS resources and NZP CSI-RS resources use the same time-frequency resource configuration method, namely the higher-layer cells CSI-RS-ResourceMapping and periodicityAndOffset. This helps ensure that the time-frequency resources of ZP CSI-RS cover the time-frequency resources of NZP CSI-RS.

[0182] For periodic ZP CSI-RS resources, after the network device configures 1 periodic ZP CSI-RS resource set for the terminal device, it takes effect immediately.

[0183] 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, that is, SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, to the terminal device to indicate the activation / deactivation of a semi-persistent ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table.

[0184] For the SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, its signaling structure is as Figure 6 shown, where the information included in this MAC CE is explained as follows:

[0185] A / D: Indicates whether to activate or deactivate the indicated SP ZP CSI-RS resource set, with a length of 1 bit. '1' indicates activation, and '0' indicates deactivation.

[0186] Serving cell identify (serving cell ID): Indicates the serving cell associated with the MAC CE, with a length of 5 bits.

[0187] Bandwidth part identify (BWP ID): Indicates the downlink BWP associated with this MAC CE, with a length of 2 bits.

[0188] SP ZP CSI-RS resource set ID: Indicates the ID of the SP ZP CSI-RS resource set to be activated / deactivated, with a length of 4 bits.

[0189] R: Reserved bit, set to 0.

[0190] For the aperiodic CSI-RS resource set, the network device configures an aperiodic ZP CSI-RS resource set table for the terminal device, including up to 3 ZP CSI-RS resource sets. Then, the network device sends DCI to the terminal device, including a ZP CSI-RS trigger field (ZP CSI-RS trigger), and this ZP CSI-RS trigger is used to indicate the triggering of an aperiodic ZP CSI-RS resource set in the aperiodic ZP CSI-RS resource set table.

[0191] For the field ZP CSI-RS trigger in DCI, its length is determined according to the number of aperiodic ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list, that is where n zp is the number of aperiodic ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list. The association relationship between the ZP CSI-RS trigger and the aperiodic ZP CSI-RS resource set is as follows:

[0192] ‘01’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 1.

[0193] ‘10’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 2.

[0194] ‘11’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 3.

[0195] ‘00’: Reserved and will not trigger any ZP CSI-RS resource set.

[0196] Combined with the above Figure 1 The scenarios to which the communication method provided in the embodiments of the present application can be applied are briefly introduced above, and the basic concepts that may be involved in the embodiments of the present application are introduced, and the ZP CSI-RS resources and the antenna configuration method on the network device side for SBFD are introduced in the basic concepts.

[0197] It should be understood that based on the antenna configuration on the network device side of the second type of SBFD, the configurations of the two sets of NZP-CSI-RS resources for channel measurement on the SBFD time unit and the non-SBFD time unit are different. Optionally, the configurations of the two sets of NZP-CSI-RS resources for interference measurement on the SBFD time unit and the non-SBFD time unit are also different. Therefore, the network device also needs to configure two sets of ZP CSI-RS resources corresponding to the two sets of NZP-CSI-RS resources for channel measurement. Optionally, the network device also needs to configure two sets of ZP CSI-RS resources corresponding to the two sets of NZP-CSI-RS resources for interference measurement.

[0198] However, the number of current ZP CSI-RS resources is limited:

[0199] Aperiodic ZP CSI-RS resources: up to 3 ZP CSI-RS resource sets.

[0200] Semi-persistent ZP CSI-RS resources: up to 16 ZP CSI-RS resource sets.

[0201] Periodic ZP CSI-RS resources: up to 1 ZP CSI-RS resource set.

[0202] And one ZP CSI-RS resource set can include at most 16 ZP CSI-RS resources. It cannot meet the requirement for more ZP CSI-RS resource configurations when adopting the antenna configuration on the second type of SBFD network device side in the SBFD scenario, resulting in low flexibility.

[0203] In order to enable the terminal device to perform CSI measurements in SBFD time units and non-SBFD time units in a scenario where the channel environment and interference environment are different in SBFD time units and non-SBFD time units (for example, the antenna configurations in SBFD time units and non-SBFD time units are different), the present application provides a communication method to configure time-frequency resources that cannot be used for receiving or transmitting signals in different time units for the terminal device.

[0204] It should be understood that the communication method provided by the embodiments of the present application can be applied to a system that communicates through multi-antenna technology. For example, Figure 1 the communication system 100 shown in. This communication system can include at least one network device and at least one terminal device.

[0205] It should also be understood that the following embodiments do not particularly limit the specific structure of the execution entity of the method provided by the embodiments of the present application. As long as it can communicate according to the method provided by the embodiments of the present application by running a program that records the code of the method provided by the embodiments of the present application. For example, the execution entity of the method provided by the embodiments of the present application can be a terminal device, or a functional module in the terminal device that can call and execute the program.

[0206] Figure 7 is a schematic flowchart of a communication method provided by the embodiments of the present application, including the following steps:

[0207] S710, the network device sends a first message to the terminal device. Correspondingly, the terminal device receives the first message from the network device.

[0208] This first message instructs to receive a first signal, where the first signal includes but is not limited to PDSCH, or other signals that cannot be transmitted and received on ZP CSI-RS resources, and will not be exemplified one by one here.

[0209] In S720, the network device sends a second message to the terminal device. Correspondingly, the terminal device receives the second message from the network device.

[0210] The second message indicates a first resource set including a first resource and a second resource. The time domain resource of the first resource is located on the SBFD time unit, and the time domain resource of the second resource is located on a non-SBFD time unit.

[0211] Exemplarily, the first message and the second message may be information carried in the same message, or the first message and the second message are different messages. This embodiment does not limit this.

[0212] The fact that the time domain resource of the above-mentioned first resource is located on the SBFD time unit and the time domain resource of the second resource is located on the non-SBFD time unit can be understood as follows: Compared with the number of ZP CSI-RS resources included in the currently configured ZP CSI-RS resource set or ZP CSI-RS resource set table by the network device, the number of ZP CSI-RS resources configured by the network device in this embodiment is larger and can meet the resource requirements of the non-SBFD time unit and the SBFD time unit.

[0213] As an example rather than a limitation, the first resource and the second resource are ZP CSI-RS resources or other resources that cannot perform signal transmission. This embodiment does not limit the name of the resources at all. For ease of description, the resources may be referred to as ZP CSI-RS resources hereinafter.

[0214] As a possible implementation manner, the above-mentioned second message is on a high-layer signaling (such as, RRC).

[0215] As another possible implementation manner, the above-mentioned second message is a newly added signaling between the network device and the terminal device. For example, the second message is a newly added signaling for the network device to configure the above-mentioned first resource set for the terminal device.

[0216] It should be understood that this embodiment does not limit whether the second message is a reused existing signaling or a newly added signaling. Any signaling that can be used to indicate the first resource set required by the terminal in this embodiment is within the protection scope of this application.

[0217] Exemplarily, in this embodiment, the first resource set indicated by the second message and including the first resource and the second resource includes the following possible ways:

[0218] Way 1: The first resource set includes one or more of the following:

[0219] Two periodic ZP CSI-RS resource sets;

[0220] Two semi-persistent ZP CSI-RS resource set tables;

[0221] Two aperiodic ZP CSI-RS resource set tables.

[0222] Specifically, each of the two periodic ZP CSI-RS resource sets includes at most 16 ZP CSI-RS resources.

[0223] Each of the two semi-persistent ZP CSI-RS resource set tables includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0224] In addition, each of the two aperiodic ZP CSI-RS resource set tables includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0225] Compared with the ZP CSI-RS resource configuration method shown above (configuring 1 periodic ZP CSI-RS resource set, 1 semi-persistent ZP CSI-RS resource set table, or 1 aperiodic ZP CSI-RS resource set table), in the case shown in Method 1, it is equivalent to expanding the number of ZP CSI-RS resource sets or ZP CSI-RS resource set tables.

[0226] Exemplarily, 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 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. That is to say, among the two periodic ZP CSI-RS resource sets, all the ZP CSI-RS resources in one periodic ZP CSI-RS resource set are configured on one type of time unit among the SBFD time unit and the non-SBFD time unit, and all the ZP CSI-RS resources in the other periodic ZP CSI-RS resource set are configured on the other type of time unit.

[0227] For example, two periodic ZP CSI-RS resource sets include a periodic ZP CSI-RS resource set #1 and a periodic ZP CSI-RS resource set #2. The periodic ZP CSI-RS resource set #1 is a non-SBFD dedicated periodic ZP CSI-RS resource set, and the periodic ZP CSI-RS resource set #2 is an SBFD dedicated periodic ZP CSI-RS resource set. The terminal device does not expect all ZP CSI-RS resources in the 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 the periodic ZP CSI-RS resource set #2 to be configured on non-SBFD time units.

[0228] It should be understood that the non-SBFD dedicated periodic ZP CSI-RS resource set and the SBFD dedicated periodic ZP CSI-RS resource set in the above two periodic ZP CSI-RS resource sets are distinguished by different high-layer signaling names.

[0229] For example, the high-layer cell corresponding to the non-SBFD dedicated periodic ZP CSI-RS resource set is p-ZP-CSI-RS-ResourceSet, and the high-layer cell corresponding to the SBFD dedicated periodic ZP CSI-RS resource set is p-ZP-CSI-RS-ResourceSet-SBFD.

[0230] Exemplarily, 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 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. That is to say, in the two semi-persistent ZP CSI-RS resource set tables, all ZP CSI-RS resources in one of the semi-persistent ZP CSI-RS resource set tables are configured on one type of time unit among SBFD time units and non-SBFD time units, and all ZP CSI-RS resources in the other semi-persistent ZP CSI-RS resource set table are configured on the other type of time unit.

[0231] For example, the two semi-persistent ZP CSI-RS resource set tables include the semi-persistent ZP CSI-RS resource set table #1 and the semi-persistent ZP CSI-RS resource set table #2. The semi-persistent ZP CSI-RS resource set table #1 is a periodic ZP CSI-RS resource set dedicated to non-SBFD, and the semi-persistent ZP CSI-RS resource set table #2 is a periodic ZP CSI-RS resource set dedicated to SBFD. The terminal device does not expect all ZP CSI-RS resources in the 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 the semi-persistent ZP CSI-RS resource set table #2 to be configured on non-SBFD time units.

[0232] It should be understood that the non-SBFD dedicated semi-persistent ZP CSI-RS resource set table and the SBFD dedicated semi-persistent ZP CSI-RS resource set table in the above two semi-persistent ZP CSI-RS resource set tables are distinguished by different high-layer signaling names.

[0233] For example, the high-layer cell corresponding to the non-SBFD dedicated semi-persistent ZP CSI-RS resource set table is sp-ZP-CSI-RS-ResourceSetsToAddModList, and the high-layer cell corresponding to the SBFD dedicated semi-persistent ZP CSI-RS resource set table is sp-ZP-CSI-RS-ResourceSetsToAddModList-SBFD.

[0234] Exemplarily, the two aperiodic ZP CSI-RS resource set tables include the first aperiodic ZP CSI-RS resource set table and the second aperiodic ZP CSI-RS resource set table. 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. That is to say, among 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 among SBFD time units and non-SBFD time units, and all ZP CSI-RS resources in the other aperiodic ZP CSI-RS resource set table are configured on the other type of time unit.

[0235] For example, two aperiodic ZP CSI-RS resource set tables include the aperiodic ZP CSI-RS resource set table #1 and the aperiodic ZP CSI-RS resource set table #2. The aperiodic ZP CSI-RS resource set table #1 is an aperiodic ZP CSI-RS resource set table dedicated to non-SBFD, and the periodic ZP CSI-RS resource set table #2 is an aperiodic ZP CSI-RS resource set table dedicated to SBFD. The terminal device does not expect all ZP CSI-RS resources in the 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 the aperiodic ZP CSI-RS resource set table #2 to be configured on non-SBFD time units.

[0236] It should be understood that the aperiodic ZP CSI-RS resource set table dedicated to non-SBFD and the aperiodic ZP CSI-RS resource set table dedicated to SBFD in the above two aperiodic ZP CSI-RS resource set tables are distinguished by different high-layer signaling names.

[0237] For example, the high-layer cell corresponding to the aperiodic ZP CSI-RS resource set table dedicated to non-SBFD is aperiodic-ZP-CSI-RS-ResourceSetsToAddModList, and the high-layer cell corresponding to the aperiodic ZP CSI-RS resource set table dedicated to SBFD is aperiodic-ZP-CSI-RS-ResourceSetsToAddModList-SBFD.

[0238] Method 2: The first resource set includes one or more of the following:

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

[0240] A semi-persistent ZP CSI-RS resource set table;

[0241] An aperiodic ZP CSI-RS resource set table.

[0242] Specifically, the periodic ZP CSI-RS resource set table at most includes 2 ZP CSI-RS resource sets, and each ZP CSI-RS resource set at most includes 16 ZP CSI-RS resources.

[0243] A semi-persistent ZP CSI-RS resource set table at most includes 32 ZP CSI-RS resource sets, and each ZP CSI-RS resource set at most includes 16 ZP CSI-RS resources.

[0244] A non-periodic ZP CSI-RS resource set table can include at most 6 or 7 ZP CSI-RS resource sets, and each ZP CSI-RS resource set can include at most 16 ZP CSI-RS resources.

[0245] Compared with the ZP CSI-RS resource configuration methods shown above (configuring 1 periodic ZP CSI-RS resource set, 1 semi-persistent ZP CSI-RS resource set table, or 1 non-periodic ZP CSI-RS resource set table), in the case shown in Method 2, it is equivalent to expanding the number of ZP CSI-RS resource sets included in the ZP CSI-RS resource set table.

[0246] Exemplarily, a periodic ZP CSI-RS resource set includes 2 ZP CSI-RS resource sets. One of the 2 ZP CSI-RS resource sets includes the first resource, and the other includes the second resource. That is, all ZP CSI-RS resources in one of the 2 ZP CSI-RS resource sets are configured on one type of time unit among the SBFD time unit and the non-SBFD time unit, and all ZP CSI-RS resources in the other ZP CSI-RS resource set are configured on the other type of time unit.

[0247] 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 dedicated periodic ZP CSI-RS resource set, and ZP CSI-RS resource set #2 is an SBFD dedicated 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 the SBFD time unit. Similarly, the terminal device does not expect all ZP CSI-RS resources in ZP CSI-RS resource set #2 to be configured on the non-SBFD time unit.

[0248] Exemplarily, a semi-persistent ZP CSI-RS resource set table includes 32 ZP CSI-RS resource sets. 16 ZP CSI-RS resource sets include the first resource, and the other 16 ZP CSI-RS resource sets include the second resource.

[0249] Exemplarily, a non-periodic 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 a first resource.

[0250] Method 3: The first resource set includes one or more of the following:

[0251] A periodic ZP CSI-RS resource set;

[0252] A semi-persistent ZP CSI-RS resource set table;

[0253] A non-periodic ZP CSI-RS resource set table.

[0254] Specifically, a periodic ZP CSI-RS resource set includes at most 32 ZP CSI-RS resources.

[0255] A semi-persistent ZP CSI-RS resource set table includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 32 ZP CSI-RS resources.

[0256] In addition, a non-periodic ZP CSI-RS resource set table includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 32 ZP CSI-RS resources.

[0257] Compared with the ZP CSI-RS resource configuration method shown above (configuring 1 periodic ZP CSI-RS resource set, 1 semi-persistent ZP CSI-RS resource set table, or 1 non-periodic ZP CSI-RS resource set table), in the case shown in this Method 3, it is equivalent to expanding the number of ZP CSI-RS resources included in the ZP CSI-RS resource set.

[0258] Method 4: The first resource set includes one or more of the following:

[0259] A periodic ZP CSI-RS resource set;

[0260] A semi-persistent ZP CSI-RS resource set table;

[0261] A non-periodic ZP CSI-RS resource set table.

[0262] Specifically, a periodic ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0263] A semi-persistent ZP CSI-RS resource set table includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0264] In addition, an aperiodic ZP CSI-RS resource set table includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0265] Compared with the ZP CSI-RS resource configuration method shown above (configuring 1 periodic ZP CSI-RS resource set, 1 semi-persistent ZP CSI-RS resource set table, or 1 aperiodic ZP CSI-RS resource set table), in the case shown in Method 4, the configured ZP CSI-RS resources are not directly expanded, but 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.

[0266] Specifically, the two ZP CSI-RS sub-resources in a ZP CSI-RS resource are configured simultaneously. That is, CSI measurements in 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.

[0267] The above-mentioned one ZP CSI-RS sub-resource includes: resource mapping parameters, period and offset parameters. Among them, the resource mapping parameter is the RRC cell CSI-RS Resource Mapping (CSI-RS-ResourceMapping), and the period and offset parameters are the higher layer cell periodicityAndOffset. The description of relevant parameters can refer to the regulations in the existing protocol and will not be elaborated here.

[0268] Exemplarily, each ZP CSI-RS resource includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource. One of the 2 sub-resources includes a first resource, and the other sub-resource includes a second resource. That is to say, 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 among SBFD time units and non-SBFD time units, and the second ZP CSI sub-resource is configured on the other type of time unit.

[0269] For example, each ZP CSI-RS resource includes a ZP CSI-RS sub-resource dedicated to SBFD and a ZP CSI-RS sub-resource not dedicated to SBFD. The terminal device does not expect the ZP CSI-RS sub-resource dedicated to SBFD to be configured in a non-SBFD time unit; similarly, the terminal device does not expect the ZP CSI-RS sub-resource not dedicated to SBFD to be configured in an SBFD time unit.

[0270] It should be understood that the above manners 1 to 4 are only examples to illustrate possible implementation manners in which the network device configures a first resource set including a first resource and a second resource through a second message, and do not constitute any limitation to the protection scope of the present application. For example, in this embodiment, the network device may configure other resources except the above resource set or resource set table through the second message. No further examples are given here.

[0271] It should also be understood that if the second message indicates a first resource and a 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.

[0272] It should be noted that if the ZP CSI-RS resources configured by the above second message include semi-persistent ZP CSI-RS resources, the semi-persistent ZP CSI-RS resources need to be activated / deactivated through a message. Figure 7 The shown method flow may further include:

[0273] S730, the network device sends an activation / deactivation message to the terminal device, and correspondingly, the terminal device receives the activation / deactivation message from the network device.

[0274] Specifically, the activation message is used to activate the semi-persistent ZP CSI-RS resources corresponding to the SBFD time unit and the semi-persistent ZP CSI-RS resources corresponding to the non-SBFD time unit; the deactivation message is used to deactivate the semi-persistent ZP CSI-RS resources corresponding to the SBFD time unit and the semi-persistent ZP CSI-RS resources corresponding to the non-SBFD time unit. The activation / deactivation message may be a MAC CE, and this MAC CE carries a field indicating the activation / deactivation of the ZP CSI-RS resource.

[0275] Exemplarily, in this implementation manner, the manners in which the activation / deactivation message is used to activate or deactivate a set of semi-persistent ZP CSI-RS resources corresponding to the SBFD time unit and the non-SBFD time unit respectively include but are not limited to the following possible implementation manners:

[0276] Method 1.1: Corresponding to the above Method 1, that is, the ZP CSI-RS resources configured by the second message include two semi-persistent ZP CSI-RS resource set tables. Among them, 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.

[0277] As a possible implementation, in the case shown in this Method 1.1, the activation / deactivation message can be called the third message, and the third message includes a first field and a second field.

[0278] Exemplarily, 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.

[0279] In this implementation, the first field indicates the index of a ZP CSI-RS resource set to be activated / deactivated in the first semi-persistent ZP CSI-RS resource set table (such as the semi-persistent ZP CSI-RS resource set table corresponding to the SBFD time unit); the second field indicates the index of a ZP CSI-RS resource set to be activated / deactivated in the second semi-persistent ZP CSI-RS resource set table (such as the semi-persistent ZP CSI-RS resource set table corresponding to the non-SBFD time unit).

[0280] Exemplarily, the third message can be the SP ZP CSI-RS Resource SetActivation / Deactivation MAC CE defined in the current protocol (such as the MAC CE structure shown above) Figure 6 The first field and the second field are respectively located in the lowest 4 bits and the highest 4 bits of the second byte in the MAC CE, as shown in (a) in Figure 8 or the first field and the second field are respectively located in the highest 4 bits and the lowest 4 bits of the second byte in the MAC CE.

[0281] As another possible implementation, in the case shown in this Method 1.1, the activation / deactivation message can be called the third message #1, and the third message #1 includes a first field #1.

[0282] Exemplarily, 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.

[0283] In this implementation manner, the first field #1 indicates the index of an activated ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table and indicates the index of an activated 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 indicates the index of a deactivated ZP CSI-RS resource set in the second semi-persistent ZP CSI-RS resource set table.

[0284] Optionally, the third message #1 is a MAC CE, and the MAC CE includes a first bit and a second bit. If the first bit takes a first value, it indicates that a 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 to be activated or deactivated according to the second bit; or, if the first bit takes a second value, it indicates that 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 are activated or deactivated.

[0285] For example, 2 reserved bits in the MAC CE are multiplexed. For example, the highest bit (the first reserved bit) and the second highest bit (the second reserved bit) in the MAC CE can be multiplexed. Among them, the first reserved bit is the first bit, and the second reserved bit is the second bit.

[0286] If the first bit is 0, it indicates which semi-persistent ZP CSI-RS resource set table to determine a ZP CSI-RS resource set from according to the second bit:

[0287] If the second bit is 0, it 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 according to the first field #1; if the second bit is 1, it 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 according to the first field #1.

[0288] If the first bit is 1, it indicates to activate one 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 simultaneously. Specifically, one 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 one ZP CSI-RS resource set is determined from the second semi-persistent ZP CSI-RS resource set table according to the first field #1 at the same time.

[0289] By way of example and not limitation, the third message #1 may be the SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE defined in the current protocol (such as the MAC CE structure shown above Figure 6 ), the first field #1 is located in the lowest 4 bits of the second byte in the MAC CE, the first bit and the second bit multiplex the highest two bits of the reserved bits, as shown in Figure 8 (b) above. Or the first bit and the second bit multiplex other reserved bits, or the first bit and the second bit are bits in a newly added byte, or the first bit and the second bit are not included, which will not be elaborated here.

[0290] Exemplarily, 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. Among them, the first semi-persistent ZP CSI-RS resource set table may be the semi-persistent ZP CSI-RS resource set table with a smaller identifier (ID) in the two semi-persistent ZP CSI-RS resource set tables, and the second semi-persistent ZP CSI-RS resource set table may be the semi-persistent ZP CSI-RS resource set table with a larger ID in the two semi-persistent ZP CSI-RS resource set tables. Or, the first semi-persistent ZP CSI-RS resource set table may 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 may be the other semi-persistent ZP CSI-RS resource set table in the two semi-persistent ZP CSI-RS resource set tables. This embodiment does not make any limitation on this.

[0291] It should be understood that each semi-persistent ZP CSI-RS resource set table in the two semi-persistent ZP CSI-RS resource set tables includes a corresponding index. For example, the first semi-persistent ZP CSI-RS resource set table includes a first index, and the second semi-persistent ZP CSI-RS resource set table includes a second index, and the first index and the second index are different.

[0292] In addition, after receiving the activation / deactivation message, the terminal device can simultaneously activate / deactivate the ZP CSI-RS resource set in the first semi-persistent ZP CSI-RS resource set table and the ZP CSI-RS resource set in the second semi-persistent ZP CSI-RS resource set table. CSI measurements in SBFD time units 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.

[0293] Mode 1.2: Corresponding to the above Mode 2, that is, the ZP CSI-RS resources configured by the second message include a semi-persistent ZP CSI-RS resource set table. Among them, a semi-persistent ZP CSI-RS resource set table includes at most 32 ZP CSI-RS resource sets, 16 of the 32 ZP CSI-RS resource sets correspond to SBFD time units, and the other 16 ZP CSI-RS resource sets correspond to non-SBFD time units. For example, the first resource is included in 16 ZP CSI-RS resource sets, and the second resource is included in the other 16 ZP CSI-RS resource sets.

[0294] As a possible implementation, in the case shown in this Mode 1.2, the activation / deactivation message can be called the fifth message, and the fifth message includes a fifth field and a sixth field.

[0295] Exemplarily, 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.

[0296] For example, the fifth field indicates the index of a ZP CSI-RS resource set corresponding to the activation / deactivation of the SBFD time unit in the semi-persistent ZP CSI-RS resource set table; the sixth field indicates the index of a ZP CSI-RS resource set corresponding to the activation / deactivation of the non-SBFD time unit in the semi-persistent ZP CSI-RS resource set table.

[0297] Exemplarily, the fifth message may be a newly defined SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, which MAC CE includes three bytes, and the fifth field and the sixth field are located in the second byte and the third byte of the MAC CE respectively. For example, both the fifth field and the sixth field are located in the lowest 5 bits of the corresponding byte, as Figure 8 shown in (c) thereof.

[0298] As another possible implementation, in the case shown in Way 2.1, the activation / deactivation message may be referred to as the fifth message #1, and the fifth message #1 includes the fifth field #1.

[0299] Exemplarily, the fifth field #1 activates the first resource and the second resource in the semi-persistent ZP CSI-RS resource set table; or, the fifth field #1 deactivates the first resource and the second resource in the semi-persistent ZP CSI-RS resource set table. For example, 16 resource sets out of 32 resource sets and another 16 resource sets are numbered independently (ID).

[0300] For example, the fifth field #1 indicates the index of an activated ZP CSI-RS resource set corresponding to the SBFD time unit in the semi-persistent ZP CSI-RS resource set table, and indicates the index of an activated / deactivated ZP CSI-RS resource set corresponding to the non-SBFD time unit in the semi-persistent ZP CSI-RS resource set table.

[0301] Exemplarily, the fifth message #1 may be a newly defined SP ZP CSI-RS Resource Set Activation / Deactivation MAC CE, which MAC CE includes two bytes, and the fifth field #1 is located in the lowest 5 bits of the corresponding byte, as Figure 8 shown in (d) thereof.

[0302] It should be understood that after receiving the activation / deactivation message, the terminal device may activate / deactivate two (different) ZP CSI-RS resource sets in the semi-persistent ZP CSI-RS resource set table simultaneously. CSI measurements on the SBFD time unit and the non-SBFD time unit are usually configured in pairs, so the corresponding ZP CSI-RS resource sets may also be activated / deactivated in pairs.

[0303] Optionally, Mode 1.2 corresponds to Mode 2 described above. For the case shown in Mode 2 above, 16 resource sets out of 32 resource sets can be regarded as a semi-persistent ZP CSI-RS resource set sub-table. That is to say, 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 Mode 1.2 can be the fifth message #2, and the fifth message #2 includes a fifth field #2 and a sixth field #2.

[0304] Exemplarily, 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 (a) above Figure 8 and replace the first field and the second field in (a) above 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. Figure 8

[0305] Mode 1.3: Corresponding to Mode 3 described above, that is, a semi-persistent ZP CSI-RS resource set table configured by the second message includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 32 ZP CSI-RS resources.

[0306] Figure 6 In the case shown in this Mode 1.3, the activation / deactivation message indicates a ZP CSI-RS resource set to be activated / deactivated in the semi-persistent ZP CSI-RS resource set table. The activation / deactivation message can refer to the description of the MAC CE described above and will not be elaborated here.

[0307] In the case shown in this Mode 1.3, the number of ZP CSI-RS resource sets included in the semi-persistent ZP CSI-RS resource set table at most is expanded, from 16 to 32.

[0308] Mode 1.4: Corresponding to Mode 4 described above, that is, a semi-persistent ZP CSI-RS resource set table configured by the second message includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources. Each ZP CSI-RS resource includes two ZP CSI-RS sub-resources.

[0309] In the case shown in Way 1.4, the activate / deactivate message indicates one ZP CSI-RS resource set that is activated / deactivated in the semi-persistent ZP CSI-RS resource set table. Each ZP CSI-RS resource in this ZP CSI-RS resource set includes two ZP CSI-RS sub-resources. The activate / deactivate message may refer to the description of the MAC CE as described above Figure 6 and will not be elaborated here.

[0310] In the case shown in Way 1.4, the ZP CSI-RS resources are enhanced. By configuring two ZP CSI-RS sub-resources, the expansion of the ZP CSI-RS resources is implicitly achieved.

[0311] It should be understood that the two ZP CSI-RS sub-resources in one ZP CSI-RS resource are always activated / deactivated simultaneously.

[0312] It should be understood that CSI measurements in 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.

[0313] It should be noted that if the first resource and / or the second resource configured by the above second message is an aperiodic ZP CSI-RS resource, the aperiodic ZP CSI-RS resource needs to be triggered by a message. Figure 7 The method flow shown may further include:

[0314] S740, the network device sends a trigger message to the terminal device. Correspondingly, the terminal device receives the trigger message from the network device.

[0315] Specifically, the trigger message is used to trigger the aperiodic ZP CSI-RS resources corresponding to the SBFD time units and the aperiodic ZP CSI-RS resources corresponding to the non-SBFD time units. The trigger message may be DCI, and a field indicating the trigger of the ZP CSI-RS resource is carried in this DCI.

[0316] Exemplarily, in this implementation manner, the ways in which the trigger message is used to trigger one aperiodic ZP CSI-RS resource set corresponding to the SBFD time unit and the non-SBFD time unit respectively include but are not limited to the following possible implementation manners:

[0317] Method 2.1: Corresponding to the above Method 1, that is, the ZP CSI-RS resources configured by the second message include two aperiodic ZP CSI-RS resource set tables. Among them, 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 the 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.

[0318] As a possible implementation, in the case shown in this Method 2.1, the trigger message can be called the fourth message, and the fourth message includes a third field and a fourth field.

[0319] Exemplarily, 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.

[0320] 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 (such as, 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 (such as, the aperiodic ZP CSI-RS resource set table corresponding to the non-SBFD time unit).

[0321] Exemplarily, the third field is the existing ZP CSI-RS trigger field in the DCI, and the fourth field is the newly added ZP CSI-RS trigger field in the DCI. The characteristics of the third field and the fourth field include:

[0322] The length of the third field is determined according to the number of ZP CSI-RS resource sets included in the first aperiodic ZP CSI-RS resource set list, that is bits, where n zp,1 is the number of ZP CSI-RS resource sets included in the first aperiodic ZP CSI-RS resource set list.

[0323] As described in the above Method 1, 0 ≤ n zp,1 ≤ 3, then the length of the third field is 0, 1 or 2 bits.

[0324] The length of the fourth field is determined according to the number of ZP CSI-RS resource sets included in the second aperiodic ZP CSI-RS resource set list, that is bits, where n zp,2is the number of ZP CSI-RS resource sets included in the second aperiodic ZP CSI-RS resource set list.

[0325] As described in the above manner 1, 0 ≤ n zp,2 ≤ 3, then the length of the fourth field is 0, 1, or 2 bits.

[0326] Specifically, the method by which the third field and the fourth field indicate the ZP CSI-RS resource set may be consistent with that specified in the current protocol, such as:

[0327] ‘01’: Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 1.

[0328] ‘10’: Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 2.

[0329] ‘11’: Trigger the ZP CSI-RS resource set with ZP CSI-RS resource set ID (ZP-CSI-RS-ResourceSetId) being 3.

[0330] As another possible implementation, in the case shown in this manner 2.1, the trigger message may be referred to as the fourth message #1, and the fourth message includes the third field #1.

[0331] Exemplarily, 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.

[0332] Optionally, the fourth message #1 is a DCI, and 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 according to the second bit; or, if the first bit takes a second value, it indicates that the ZP CSI-RS resource sets in both the first aperiodic ZP CSI-RS resource set table and the second aperiodic ZP CSI-RS resource set table are triggered.

[0333] For example, 2 reserved bits in the DCI are reused, or 2 new bits are added to the DCI. These 2 bits include a first bit and a second bit, where the first bit is the first bit and the second bit is the second bit.

[0334] If the first bit is 0, it indicates that a ZP CSI-RS resource set is determined from which aperiodic ZP CSI-RS resource set table according to the second bit:

[0335] If the second bit is 0, it 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 according to the third field #1; if the second bit is 1, it 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 according to the third field #1.

[0336] If the first bit is 1, it indicates that a ZP CSI-RS resource set in the first aperiodic ZP CSI-RS resource set table and the second aperiodic ZP CSI-RS resource set table is simultaneously activated. 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 at the same time, a ZP CSI-RS resource set is determined from the second aperiodic ZP CSI-RS resource set table according to the third field #1.

[0337] Exemplarily, the first aperiodic ZP CSI-RS resource set table is one of the 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.

[0338] Exemplarily, 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. Among them, the first aperiodic ZP CSI-RS resource set table may be the aperiodic ZP CSI-RS resource set table with a smaller ID among the two aperiodic ZP CSI-RS resource set tables, and the second aperiodic ZP CSI-RS resource set table may be the aperiodic ZP CSI-RS resource set table with a larger ID among the two aperiodic ZP CSI-RS resource set tables. Or, the first aperiodic ZP CSI-RS resource set table may be any one of the two aperiodic ZP CSI-RS resource set tables, and the second aperiodic ZP CSI-RS resource set table may 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.

[0339] It should be understood that each aperiodic ZP CSI-RS resource set table among the two aperiodic ZP CSI-RS resource set tables includes a corresponding index. For example, the first aperiodic ZP CSI-RS resource set table includes index #1, the second aperiodic ZP CSI-RS resource set table includes index #2, and index #1 and index #2 are different.

[0340] It should be understood that after receiving the trigger message, the terminal device can trigger the ZP CSI-RS resource set in the first aperiodic ZP CSI-RS resource set table and the ZP CSI-RS resource set in the second aperiodic ZP CSI-RS resource set table simultaneously.

[0341] It should also be understood that CSI measurements in 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.

[0342] Mode 2.2: Corresponding to the above-mentioned Mode 2, that is, the ZP CSI-RS resources configured by the second message include a table of aperiodic ZP CSI-RS resource sets. Among them, a table of aperiodic ZP CSI-RS resource sets includes at most 6 or 7 ZP CSI-RS resource sets. Three of the 6 or 7 ZP CSI-RS resource sets correspond to SBFD time units, and the other 3 or 4 ZP CSI-RS resource sets correspond to non-SBFD time units. Or, three of the 6 or 7 ZP CSI-RS resource sets correspond to non-SBFD time units, and the other 3 or 4 ZP CSI-RS resource sets correspond to SBFD time units.

[0343] As a possible implementation, in the case shown in this Mode 2.2, the triggering message can be called the sixth message, and the sixth message includes a seventh field and an eighth field.

[0344] Exemplarily, the seventh field triggers the first resource in the table of aperiodic ZP CSI-RS resource sets, and the eighth field triggers the second resource in the table of aperiodic ZP CSI-RS resource sets.

[0345] For example, the seventh field indicates the index of a ZP CSI-RS resource set corresponding to the SBFD time unit and triggered in the table of aperiodic ZP CSI-RS resource sets; the eighth field indicates the index of a ZP CSI-RS resource set corresponding to the SBFD time unit and triggered in the table of aperiodic ZP CSI-RS resource sets.

[0346] As an example: The table of aperiodic ZP CSI-RS resource sets includes at most 7 ZP CSI-RS resource sets.

[0347] Exemplarily, 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 field and the eighth field include:

[0348] The lengths of the seventh field and the eighth field are determined according to the number of ZP CSI-RS resource sets included in the list of aperiodic ZP CSI-RS resource sets, that is bit, where n zp is the number of ZP CSI-RS resource sets included in the list of aperiodic ZP CSI-RS resource sets.

[0349] As described in the above Mode 2, 0 ≤ n zp ≤ 7, then the lengths of the seventh field and the eighth field are 0, 1, 2, or 3 bits.

[0350] The methods for the seventh field and the eighth field to indicate ZP CSI-RS resource sets include:

[0351] ‘001’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 1.

[0352] ‘010’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 2.

[0353] …

[0354] ‘111’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 7.

[0355] ‘000’: Reserved and will not trigger any ZP CSI-RS resource set.

[0356] It should be understood that after receiving the trigger message, the terminal device can simultaneously trigger two (different) ZP CSI-RS resource sets indicated by the seventh field and the eighth field in the aperiodic ZP CSI-RS resource set table.

[0357] It should be understood that CSI measurements in 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.

[0358] As another example: The aperiodic ZP CSI-RS resource set table includes at most 6 ZP CSI-RS resource sets.

[0359] Exemplarily, the seventh field is the existing ZP CSI-RS trigger field in DCI, and the eighth field is the newly added second ZP CSI-RS trigger field in DCI. The characteristics of the seventh field and the eighth field include:

[0360] The lengths of the seventh field and the eighth field are determined according to half of the number of ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list, that is bit, where n zp is the number of ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set list.

[0361] As described in the above method 2, 0 ≤ n zpIf ≤6, the lengths of the seventh and eighth fields are 0, 1, or 2 bits.

[0362] The methods for the seventh field to indicate the ZP CSI-RS resource set include:

[0363] ‘01’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 1.

[0364] ‘10’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 2.

[0365] ‘11’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 3.

[0366] ‘00’: Reserved and will not trigger any ZP CSI-RS resource set.

[0367] The methods for the eighth field to indicate the ZP CSI-RS resource set include:

[0368] ‘01’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 4.

[0369] ‘10’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 5.

[0370] ‘11’: Trigger the ZP CSI-RS resource set with the ZP CSI-RS resource set index (ZP-CSI-RS-ResourceSetId) being 6.

[0371] ‘00’: Reserved and will not trigger any ZP CSI-RS resource set.

[0372] Exemplarily, all ZP CSI-RS resources in the ZP CSI-RS resource sets with ZP CSI-RS resource set indices 1 - 3 and all ZP CSI-RS resources in the ZP CSI-RS resource sets with ZP CSI-RS resource set indices 4 - 6 are respectively allocated on different time unit types. Then, the seventh and eighth fields trigger aperiodic ZP CSI-RS allocated on SBFD time units and non-SBFD time units respectively.

[0373] It should be understood that after receiving the trigger message, the terminal device can simultaneously trigger two (different) ZP CSI-RS resource sets indicated by the seventh and eighth fields described in the aperiodic ZP CSI-RS resource set table.

[0374] 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.

[0375] Mode 2.3: Corresponding to the above Mode 3, that is, an aperiodic ZP CSI-RS resource set table configured by the second message. The aperiodic ZP CSI-RS resource set table includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 32 ZP CSI-RS resources.

[0376] In the case shown in this Mode 2.3, the trigger message indicates one ZP CSI-RS resource set triggered in the aperiodic ZP CSI-RS resource set table.

[0377] In the case shown in this Mode 2.3, the number of ZP CSI-RS resource sets included in the aperiodic ZP CSI-RS resource set table at most is increased, from 16 to 32.

[0378] Mode 2.4: Corresponding to the above Mode 4, that is, an aperiodic ZP CSI-RS resource set table configured by the second message includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources. Each ZP CSI-RS resource includes two ZP CSI-RS sub-resources.

[0379] In the case shown in this Mode 2.4, the trigger message indicates one ZP CSI-RS resource set triggered in the aperiodic ZP CSI-RS resource set table, and each ZP CSI-RS resource in this ZP CSI-RS resource set includes two ZP CSI-RS sub-resources.

[0380] In the case shown in this Mode 2.4, the ZP CSI-RS resources are enhanced, and by configuring two ZP CSI-RS sub-resources, the expansion of the ZP CSI-RS resources is implicitly realized.

[0381] It should be understood that the two ZP CSI-RS sub-resources in one ZP CSI-RS resource are always triggered simultaneously.

[0382] 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.

[0383] Furthermore, in this embodiment, after the network device completes resource configuration through the second message, and activates / deactivates, or triggers the corresponding resources, it can send a first signal to the terminal device. Figure 7 The method flow shown further includes:

[0384] S740, the network device sends a first signal to the terminal device, and correspondingly, the terminal device receives the first signal from the network device.

[0385] Specifically, the network device does not send the first signal on the first resource and the second resource; the terminal device also does not receive the first signal on the resources indicated by the first resource and the second resource.

[0386] For example, the network device does not send the first signal on the 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 also does not receive the first signal on the time-frequency resources included in all ZP CSI-RS resources in the periodic ZP CSI-RS resource set (table) indicated by the second message.

[0387] Also for example, the network device does not send the first signal on the time-frequency resources included in all ZP CSI-RS resources in the activated ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table indicated by the second message. The terminal device also does not receive the first signal on the time-frequency resources included in all ZP CSI-RS resources in the activated ZP CSI-RS resource set in the semi-persistent ZP CSI-RS resource set table indicated by the second message.

[0388] Yet another example, the network device does not send the first signal on the time-frequency resources included in all ZP CSI-RS resources in the ZP CSI-RS resource set triggered in the aperiodic ZP CSI-RS resource set table indicated by the second message. The terminal device also does not receive the first signal on the time-frequency resources included in all ZP CSI-RS resources in the ZP CSI-RS resource set triggered in the aperiodic ZP CSI-RS resource set table indicated by the second message.

[0389] Figure 7In the communication method shown, 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 including a first resource and a second resource. The terminal device can receive the first signal on other resources except the first resource and the second resource. 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. It can be understood that 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, so as to configure the required resources on different time units in a scenario where the channel environment and interference environment on the SBFD time unit and the non-SBFD time unit are different, improving the flexibility of resource configuration.

[0390] Another communication method is also provided in this application. The following will introduce this communication method in detail in combination with Figure 9 This communication method will be introduced in detail.

[0391] Figure 9 is a schematic flowchart of a communication method provided by an embodiment of this application. As Figure 9 shown, the method includes the following steps:

[0392] S910, the network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the network device.

[0393] The first indication information indicates that the first signal can be received on the first time-frequency resource. Or rather, the first indication information indicates the first time-frequency resource for receiving the first signal. Among them, the first signal includes but is not limited to PDSCH, or other signals that cannot be transmitted or received on the ZP CSI-RS resource, and will not be exemplified one by one here.

[0394] S920, the network device sends second indication information to the terminal device. Correspondingly, the terminal device receives the second indication information from the network device.

[0395] The second indication information indicates a first ZP CSI-RS resource, and the first ZP CSI-RS resource is a time-frequency resource on a non-SBFD time unit that is not used to receive the first signal. Exemplarily, the second indication information is used to configure one or more ZP CSI-RS resources, and the one or more ZP CSI-RS resources are not used to transmit or receive PDSCH on a non-SBFD time unit. The first ZP CSI-RS resource is any one of the one or more ZP CSI-RS resources. For the convenience of description, in the following, the case where the second indication information indicates the first ZP CSI-RS resource will be used as an example for illustration.

[0396] S930, the network device sends the third indication information to the terminal device. Correspondingly, the terminal device receives the third indication information from the network device.

[0397] Exemplarily, the third indication information indicates the second time-frequency resource, and the second time-frequency resource is the time-frequency resource on the SBFD time unit that is not used for transmitting or receiving the first signal.

[0398] Specifically, the second time-frequency resource is a subset of the first ZP CSI-RS resource. The second time-frequency resource is not used for transmitting or receiving the first signal. Or rather, the time-frequency resource #1 in the first ZP CSI-RS resource can be used for transmitting or receiving the first signal, and this time-frequency resource #1 does not include the second time-frequency resource. Or, the third indication information indicates the time-frequency resource #1, and the time-frequency resource #1 is a subset of the first ZP CSI-RS resource. The time-frequency resource #1 is the time-frequency resource on the SBFD time unit that is used for transmitting or receiving the first signal. It can be understood that the third indication information can indicate the time-frequency resources in the first ZP CSI-RS resource that can transmit or receive signals on the SBFD time unit, or the third indication information can indicate the time-frequency resources in the first ZP CSI-RS resource that cannot transmit or receive signals on the SBFD time unit.

[0399] When the third indication information indicates the second time-frequency resource, on the SBFD time unit, the first signal is transmitted or received on the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is the time-frequency resource in the first time-frequency resource other than the second time-frequency resource. On non-SBFD time units, the first signal is transmitted or received on the fourth time-frequency resource in the first time-frequency resource, and the fourth time-frequency resource is the time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource.

[0400] When the third indication information indicates the time-frequency resource #1, on the SBFD time unit, the first signal can be transmitted or received on the time-frequency resource #1 in the first time-frequency resource; further, on the SBFD time unit, the first signal is transmitted or received on the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is the time-frequency resource in the first time-frequency resource other than the second time-frequency resource, and the second time-frequency resource is the time-frequency resource in the first ZP CSI-RS resource other than the time-frequency resource #1. On non-SBFD time units, the first signal can be transmitted or received on the fourth time-frequency resource in the first time-frequency resource, and the fourth time-frequency resource is the time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource.

[0401] The first time-frequency resource overlaps with the second time-frequency resource (or there is an intersection, complete or partial overlap, etc.), and the first time-frequency resource overlaps with the time-frequency resource other than the second time-frequency resource in the first ZP CSI-RS resource (or there is an intersection, complete or partial overlap, etc.).

[0402] Exemplarily, the first indication information, the second indication information, and the third indication information may be information carried in the same message, or the first indication information, the second indication information, and the third indication information are different messages, and this is not limited in this embodiment.

[0403] The third indication information indicates that the terminal device is not allowed 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 is not allowed to send PDSCH on the second time-frequency resource (or RE) in the SBFD time unit. Alternatively, the third indication information indicates that the terminal device is allowed to receive PDSCH on the time-frequency resource #1 (or RE) of the first ZP CSI-RS resource in the SBFD time unit. Similarly, the network device is allowed to send PDSCH on the time-frequency resource #1 (or RE) of the first ZP CSI-RS resource in the SBFD time unit.

[0404] In addition, the terminal device is not allowed to receive PDSCH on the first ZP CSI-RS resource in the non-SBFD time unit. Similarly, the network device is not allowed to send PDSCH on the first ZP CSI-RS resource in the non-SBFD time unit.

[0405] It should be understood that the second indication information may indicate multiple ZP CSI-RS resources. Then, the above-mentioned third indication information may be used to indicate the time-frequency resources (or REs) in each ZP CSI-RS resource among the multiple ZP CSI-RS resources, and the terminal device is not allowed to receive PDSCH on the time-frequency resources (or REs).

[0406] For example, the ZP CSI-RS resources indicated by the second indication information include the first ZP CSI-RS resource and the second ZP CSI-RS resource, and the third indication information may indicate the second time-frequency resource #1_1 in the first ZP CSI-RS resource and the second time-frequency resource #1_2 in the second ZP CSI-RS resource.

[0407] For the sake of description, in this embodiment, the case where the third indication information indicates the second time-frequency resource (or RE) of the first ZP CSI-RS resource is taken as an example for illustration.

[0408] Exemplarily, the network device configures one or more of the following three resource sets or resource set tables for the terminal device:

[0409] A periodic ZP CSI-RS resource set;

[0410] A semi-persistent ZP CSI-RS resource set table;

[0411] An aperiodic ZP CSI-RS resource set table.

[0412] Specifically, a periodic ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0413] A semi-persistent ZP CSI-RS resource set table includes at most 16 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0414] In addition, an aperiodic ZP CSI-RS resource set table includes at most 3 ZP CSI-RS resource sets, and each ZP CSI-RS resource set includes at most 16 ZP CSI-RS resources.

[0415] In this embodiment, there is no limitation on the ZP CSI-RS resources configured by the network device for the terminal device.

[0416] It should be understood that according to the antenna configuration on the second type of SBFD network device side, compared with the non-SBFD time unit, the number of antenna ports on the SBFD time unit is halved, so that the number of CSI-RS ports on the SBFD time unit is halved. According to the mapping relationship between the CSI-RS port number and the CSI-RS time-frequency resources defined in the current protocol, as shown in Table 1 and Figure 4 shown, halving the CSI-RS port number will further halve the CSI-RS time-frequency resource number.

[0417] Therefore, the time-frequency resources used by CSI-RS on the SBFD time unit are half of those used by CSI-RS on the non-SBFD time unit. This means that the time-frequency resources used by ZP CSI-RS on the SBFD time unit are also half of those used by ZP CSI-RS on the non-SBFD time unit.

[0418] According to the above analysis, a possible method is to configure ZP CSI-RS resources according to CSI-RS ports and CSI-RS time-frequency resources in non-SBFD time units, and then indicate the time-frequency resources located in SBFD time units in the ZP CSI-RS resources through the third indication information. For example, when the antenna configurations in non-SBFD time units and SBFD time units are in the scenario of the second type of antenna configuration shown above (i.e., the number of antenna ports corresponding to the SBFD time unit is half of the number of antenna ports corresponding to the non-SBFD time unit), the third indication information indicates that half of the time-frequency resources in the ZP CSI-RS resources are located in the SBFD time unit; also for example, when the number of antenna ports corresponding to the non-SBFD time unit is different from the number of antenna ports corresponding to the SBFD time unit (e.g., the number of antenna ports corresponding to the SBFD time unit is less than the number of antenna ports corresponding to the non-SBFD time unit), the third indication information indicates the time-frequency resources actually used for the SBFD time unit in the ZP CSI-RS resources. It should be understood that in this embodiment, the number of antenna ports corresponding to the SBFD time unit is different from the number of antenna ports corresponding to the non-SBFD time unit, and no specific limitation is imposed on the specific difference 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.

[0419] Exemplarily, in this embodiment, the third indication information indicates the second time-frequency resource (or RE), including but not limited to the following possible methods:

[0420] Implementation method 1: The third indication information indicates at least one CSI-RS port, and the at least one CSI-RS port is associated with the second time-frequency resource. For example, the third indication information is a bitmap, and each bit corresponds to a CSI-RS port one by one.

[0421] Exemplarily, a value of '0' for a certain bit 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 value of this bit is '0', the CSI-RS port corresponding to this bit is associated with the time-frequency resource #1 that can be used to transmit or receive the first signal), and a value of '1' for a certain bit in the bitmap 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 value of this bit is '1', the CSI-RS port corresponding to this bit is associated with the second time-frequency resource that cannot be used to transmit or receive the first signal); or,

[0422] A value of '0' for a certain bit in the bitmap indicates that a PDSCH cannot be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the value of this bit is '0', the CSI-RS port corresponding to this bit is associated with a second time-frequency resource that cannot be used to transmit or receive the first signal). A value of '1' for a certain bit in the bitmap indicates that a PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port (e.g., if the value of this bit is '1', the CSI-RS port corresponding to this bit is associated with the time-frequency resource #1 that can be used to transmit or receive the first signal).

[0423] In the case shown in the first implementation manner, the time-frequency resource #1 includes the time-frequency resources associated with the CSI-RS ports corresponding to the value '0' in the bitmap; the second time-frequency resource includes the time-frequency resources associated with the CSI-RS ports corresponding to the value '1' in the bitmap. Alternatively, the time-frequency resource #1 includes the time-frequency resources associated with the CSI-RS ports corresponding to the value '1' in the bitmap; the second time-frequency resource includes the time-frequency resources associated with the CSI-RS ports corresponding to the value '0' in the bitmap.

[0424] For example, as Figure 10 and Figure 11 shown, the number of CSI-RS ports is 32, N 1 = 8, N 2 = 2. The bitmap of the third indication information is "11111111000000001111111100000000". Among them, the bitmap is associated with CSI-RS ports 3000 to CSI-RS port 3031 from the low bit to the high bit. '0' indicates that a PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port, that is, the above-mentioned time-frequency resource #1. '1' indicates that a PDSCH cannot be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CSI-RS port, that is, the above-mentioned second time-frequency resource.

[0425] Implementation manner two: The third indication information indicates at least one code division multiplexing CDM group, and the at least one CDM group is associated with the second time-frequency resource. For example, the first indication information is a bitmap, and each bit corresponds to a CDM group one by one.

[0426] Exemplarily, a value of '0' for a certain bit 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 value of this bit is '0', the CDM group corresponding to this bit is associated with the time-frequency resource #1 that can be used to transmit or receive the first signal), and a value of '1' for a certain bit 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 value of this bit is '1', the CDM group corresponding to this bit is associated with the second time-frequency resource that cannot be used to transmit or receive the first signal); or,

[0427] A value of '0' for a certain bit 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 value of this bit is '0', the CDM group corresponding to this bit is associated with the second time-frequency resource that cannot be used to transmit or receive the first signal), and a value of '1' for a certain bit 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 value of this bit is '1', the CDM group corresponding to this bit is associated with the time-frequency resource #1 that can be used to transmit or receive the first signal).

[0428] In the case shown in the second implementation manner, the time-frequency resource #1 includes the time-frequency resource associated with the CDM group corresponding to the value of '0' in the bitmap; the second time-frequency resource includes the time-frequency resource associated with the CDM group corresponding to the value of '1' in the bitmap. Or, the time-frequency resource #1 includes the time-frequency resource associated with the CDM group corresponding to the value of '1' in the bitmap; the second time-frequency resource includes the time-frequency resource associated with the CDM group corresponding to the value of '0' in the bitmap. For example, as Figure 10 and Figure 11 shown, the number of CSI-RS ports is 32, N 1 = 8, N 2 = 2, the bitmap of the first indication information is "11001100", where the bitmap is associated with CDM group 0 to CDM group 7 from the low bit to the high bit, '0' indicates that PDSCH can be transmitted or received on the time-frequency resource (or RE) associated with the corresponding CDM group, that is, the above-mentioned 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, that is, the above-mentioned second time-frequency resource.

[0429] Implementation manner three: The third indication information indicates the number of ports N, and N CSI-RS ports are associated with the second time-frequency resource.

[0430] In the case shown in Implementation Mode 3, Time-Frequency Resource #1 includes the time-frequency resources associated with N CSI-RS ports; the second time-frequency resource includes the time-frequency resources associated with (M - N) CSI-RS ports among the M CSI-RS ports excluding the N CSI-RS ports. Alternatively, Time-Frequency Resource #1 includes the time-frequency resources associated with (M - N) CSI-RS ports among the M CSI-RS ports excluding the N CSI-RS ports; the second time-frequency resource includes the time-frequency resources associated with N CSI-RS ports.

[0431] As a possible implementation mode, the antenna of the network device is configured as a single panel, or rather, the codebook type is configured as a single panel.

[0432] In this implementation mode, the CSI-RS port indexes are: 0 to N / 2 - 1, and, (0 to N / 2 - 1) + M / 2; or, in this implementation mode, the CSI-RS port indexes are: M - (0 to N / 2 - 1) - 1, and, M / 2 - (0 to N / 2 - 1) - 1, where M is the total number of antenna ports of the network device.

[0433] For example, the CSI-RS ports with indexes 0 to N / 2 - 1, and, (0 to N / 2 - 1) + M / 2 are associated with Time-Frequency Resource #1 that can be used for transmitting or receiving the first signal; the CSI-RS ports with indexes M - (0 to N / 2 - 1) - 1, and, M / 2 - (0 to N / 2 - 1) - 1 are associated with the second time-frequency resource that cannot be used for transmitting or receiving the first signal.

[0434] As another possible implementation mode, the antenna of the network device is configured as a double panel, or rather, the codebook type is configured as a double panel.

[0435] In this implementation mode, the CSI-RS port indexes are: 0 to N / 2 - 1, or, Or, in this implementation mode, the CSI-RS port indexes are: M - (0 to N / 2 - 1) - 1, or, (0 to N / 2 - 1) + M / 2, where M is the total number of antenna ports of the network device.

[0436] For example, the CSI-RS ports with indexes 0 to N / 2 - 1, or, are associated with Time-Frequency Resource #1 that can be used for transmitting or receiving the first signal; the CSI-RS ports with indexes M - (0 to N / 2 - 1) - 1, or, (0 to N / 2 - 1) + M / 2 are associated with the second time-frequency resource that cannot be used for transmitting or receiving the first signal. Optionally, the network device can also send the fourth indication information to the terminal device to indicate one of the above methods of CSI-RS port indexes.

[0437] In this embodiment, the third indication information can be carried in any of the following ways:

[0438] 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;

[0439] Or,

[0440] The third indication information is configured in the first set of ZP CSI-RS resources, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first set of ZP CSI-RS resources;

[0441] Or,

[0442] The third indication information is configured in the first table of ZP CSI-RS resource sets, and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in the first table of ZP CSI-RS resource sets;

[0443] Or,

[0444] The third indication information is configured in the PDSCH configuration (e.g., the high-layer cell PDSCH-Config), and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all tables of ZP CSI-RS resource sets;

[0445] Or,

[0446] The third indication information is configured in the CSI reporting resource setting (e.g., CSI Reporting Setting or the high-layer cell CSI-ReportCofig), and the third indication information indicates the second time-frequency resource of each ZP CSI-RS resource in all tables of ZP CSI-RS resource sets.

[0447] It should be noted that if one or more of the above ZP CSI-RS resources are semi-persistent ZP CSI-RS resources, the ZP CSI-RS resources need to be activated / deactivated through a message; if one or more of the above ZP CSI-RS resources are aperiodic ZP CSI-RS resources, the ZP CSI-RS resources need to be triggered through a message. Figure 9 The shown method flow may further include:

[0448] S940, the network device sends an activation / deactivation message to the terminal device, and correspondingly, the terminal device receives the activation / deactivation message from the network device.

[0449] The activation / deactivation message can be a MAC CE, and this MAC CE carries a field indicating the activation / deactivation of the ZP CSI-RS resource.

[0450] Optionally, the activate / deactivate message indicates one ZP CSI-RS resource set that is activated / deactivated in the semi-persistent ZP CSI-RS resource set table.

[0451] S950, the network device sends a trigger message to the terminal device. Correspondingly, the terminal device receives the trigger message from the network device.

[0452] The trigger message may be DCI, and a field indicating the triggered ZP CSI-RS resource is carried in the DCI.

[0453] Optionally, the trigger message indicates one ZP CSI-RS resource set that is triggered in the aperiodic ZP CSI-RS resource set table.

[0454] Further, after the network device in this embodiment completes resource configuration through the first indication information, the second indication information, and the third indication information, and activates / deactivates, or triggers the corresponding resources, it may send a first signal to the terminal device. Figure 9 The shown method flow further includes:

[0455] S960, the network device sends a first signal to the terminal device. Correspondingly, the terminal device receives the first signal from the network device.

[0456] Specifically, the network device does not send the first signal on the second time-frequency resource included in any ZP CSI-RS resource indicated by the third indication information; the terminal device also does not receive the first signal on the second time-frequency resource included in any ZP CSI-RS resource indicated by the third indication information.

[0457] For example, the network device does not send 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 also does 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.

[0458] Also for example, the network device does not send the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the activated ZP CSI-RS resource set in the configured semi-persistent ZP CSI-RS resource set table; the terminal device also does not receive the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the activated ZP CSI-RS resource set in the configured semi-persistent ZP CSI-RS resource set table.

[0459] For another example, the network device does not send the first signal on the second time-frequency resource included in any ZP CSI-RS resource in the triggered ZP CSI-RS resource set in the configured aperiodic ZP CSI-RS resource set table; the terminal device also does 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.

[0460] Figure 9 In the communication method shown, the network device sends third indication information to the terminal device to indicate the second time-frequency resource in the first ZP CSI-RS resource, and this second time-frequency resource cannot be used for sending or receiving signals. Thus, the terminal device can receive the first signal on other resources except the second time-frequency resource in the first time-frequency resource indicated by the first indication information for receiving the first signal. Among them, the second time-frequency resource is located on the SBFD time unit, so as to realize the configuration of required resources on different time units in a scenario where the channel environment and interference environment are different on the SBFD time unit and the non-SBFD time unit, improving the flexibility of resource configuration.

[0461] It should be understood that the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0462] It should also be understood that in various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be mutually referred to, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0463] It should also be understood that in the above-mentioned some embodiments, devices in the existing network architecture are taken as examples for exemplary illustration (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 the present application. For example, devices that can achieve the same functions in the future are applicable to the embodiments of the present application.

[0464] It can be understood that in each of the above method embodiments, the methods and operations implemented by the devices (such as network devices, terminal devices) can also be implemented by components of the devices (such as chips or circuits).

[0465] Above, in combination with Figure 7 and Figure 9The communication method provided by the embodiments of the present application is described in detail. The above communication method is mainly introduced from the perspective of the interaction between the terminal device and the network device. It can be understood that, in order to implement the above functions, the terminal device and the network device include the corresponding hardware structures and / or software modules for executing each function.

[0466] Those skilled in the art should be able to realize that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0467] The following is combined with Figures 12 to 14 The communication device provided by the present application is described in detail. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, the content that is not described in detail can be referred to the above method embodiments. For the sake of brevity, some content will not be repeated.

[0468] The embodiments of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be noted that the division of modules in the embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation. The following takes the division of each functional module corresponding to each function as an example for description.

[0469] Figure 12 It is a schematic block diagram of the communication device 10 provided by the embodiments of the present application. The device 10 includes a transceiver module 11 and a processing module 12. The transceiver module 11 can implement the corresponding communication functions, and the processing module 12 is used for data processing. Or rather, the transceiver module 11 is used to execute operations related to reception and transmission, and the processing module 12 is used to execute other operations except reception and transmission. The transceiver module 11 can also be referred to as a communication interface or a communication unit.

[0470] Optionally, the device 10 may further include a storage module 13. The storage module 13 can be used to store instructions and / or data. The processing module 12 can read the instructions and / or data in the storage module so that the device can implement the actions of the device in the foregoing method embodiments.

[0471] In one design, the device 10 may correspond to the terminal device in the above method embodiment, or a component of the terminal device (such as a chip).

[0472] The device 10 can implement the steps or processes corresponding to those executed by the terminal device in the above method embodiment. Among them, the transceiver module 11 can be used to perform the operations related to the transceiver of the terminal device in the above method embodiment, and the processing module 12 can be used to perform the operations related to the processing of the terminal device in the above method embodiment.

[0473] In a possible implementation manner, the transceiver module 11 is configured to receive a first message, and the first message indicates receiving a first signal. The transceiver module 11 is configured to receive a second message, and the second message indicates a first resource set including a first resource and a second resource. The time domain resource of the first resource is located on the SBFD time unit, and the time domain resource of the second resource is located on a non-SBFD time unit. The transceiver module 11 is configured to receive the first signal on a resource other than the first resource and the second resource.

[0474] In another possible implementation manner, the transceiver module 11 is configured to receive first indication information, and the first indication information indicates receiving a first signal on a first time-frequency resource. The transceiver module 11 is configured to receive second indication information, and the second indication information indicates a first ZP CSI-RS resource, where the first ZP CSI-RS resource is a time-frequency resource on a non-SBFD time unit that is not used to receive the first signal. The transceiver module 11 is configured to receive third indication information, and the third indication information indicates a second time-frequency resource, where the second time-frequency resource is a subset of the first ZP CSI-RS resource and is a time-frequency resource on an SBFD time unit that is not used to receive the first signal. The transceiver module 11 is configured to receive the first signal on a third time-frequency resource in the first time-frequency resource on an SBFD time unit, where the third time-frequency resource is the time-frequency resource in the first time-frequency resource other than the second time-frequency resource. The transceiver module 11 is configured to receive 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 the time-frequency resource in the first time-frequency resource other than the first ZP CSI-RS resource. Among them, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the time-frequency resource in the first ZP CSI-RS resource other than the second time-frequency resource.

[0475] When the device 10 is used to execute Figure 7 the method in, the transceiver module 11 can be used to perform the steps of transceiver information in the method, such as steps S710, S720, S730, and S740; the processing module 12 can be used to perform the processing steps in the method.

[0476] When the device 10 is used to execute Figure 9 the method in

[0477] 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.

[0478] It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0479] In another design, the device 10 can correspond to the network device in the above method embodiment, or a component (such as a chip) of the network device.

[0480] In a possible implementation manner, the transceiver module 11 is used to send a first message, and the first message indicates receiving a first signal. The transceiver module 11 is used to send a second message, and the second message indicates a first resource set including a first resource and a second resource. The time domain resource of the first resource is located on the SBFD time unit, and the time domain resource of the second resource is located on a non - SBFD time unit. The transceiver module 11 is used to send the first signal on resources other than the first resource and the second resource.

[0481] In another possible implementation, the transceiver module 11 is configured to send a first indication message, where the first indication message indicates receiving a first signal on a first time-frequency resource. The transceiver module 11 is configured to send a second indication message, where the second indication message indicates a first ZP CSI-RS resource, and the first ZP CSI-RS resource is a time-frequency resource that is not used for receiving the first signal in a non-SBFD time unit. The transceiver module 11 is configured to send a third indication message, where the third indication message indicates a second time-frequency resource, and the second time-frequency resource is a subset of the first ZP CSI-RS resource and is a time-frequency resource that is not used for receiving the first signal in a subband full-duplex (SBFD) time unit. The transceiver module 11 is configured to send the first signal on a time-frequency resource in the first time-frequency resource other than the second time-frequency resource in an SBFD time unit. The transceiver module 11 is configured to send the first signal on a fourth time-frequency resource in the first time-frequency resource in 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. Among them, the first time-frequency resource overlaps with the second time-frequency resource, and the first time-frequency resource overlaps with the time-frequency resource in the first ZP CSI-RS resource other than the second time-frequency resource.

[0482] When the apparatus 10 is used to execute Figure 7 the method in, 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.

[0483] When the apparatus 10 is used to execute Figure 9 the method in, 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.

[0484] It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0485] It should also be understood that the device 10 here is embodied in the form of functional modules. The term "module" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor or a group of processors, etc.) for executing one or more software or firmware programs, and a memory, a combined logic circuit and / or other suitable components that support the described functions. In an alternative example, those skilled in the art can understand that the device 10 can specifically be the mobile management network element in the above embodiments, and can be used to execute each process and / or step corresponding to the mobile management network element in each of the above method embodiments; or, the device 10 can specifically be the terminal device in the above embodiments, and can be used to execute each process and / or step corresponding to the terminal device in each of the above method embodiments. To avoid repetition, it will not be elaborated here.

[0486] The device 10 in each of the above solutions has the function of implementing the corresponding steps executed by the devices (such as terminal devices, network devices) in the above 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 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 the processing module, can be replaced by a processor to respectively execute the transceiver operations and related processing operations in each of the method embodiments.

[0487] In addition, the above transceiver module 11 can also be a transceiver circuit (for example, it can include a receiving circuit and a sending circuit), and the processing module can be a processing circuit.

[0488] Figure 13 It is a schematic diagram of another communication device 20 provided by an embodiment of the present application. The device 20 includes a processor 21, and the processor 21 is used to execute the computer program or instruction stored in the memory 22, or read the data / signaling stored in the memory 22 to execute the methods in the above method embodiments. Optionally, the processor 21 is one or more.

[0489] Optionally, as Figure 13 shown, the device 20 further includes a memory 22, and the memory 22 is used to store computer programs or instructions and / or data. The memory 22 can be integrated with the processor 21, or can also be separately provided. Optionally, the memory 22 is one or more.

[0490] Optionally, as Figure 13As shown, 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.

[0491] As a solution, the device 20 is used to implement the operations performed by the terminal device in the above method embodiments.

[0492] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may also be 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. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0493] It should also be understood that the memory mentioned in the embodiments of the present application may be volatile memory and / or non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, the RAM may be used as an external cache. By way of example and not limitation, the RAM includes the following various forms: static random access memory (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0494] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, the memory (storage module) can be integrated in the processor.

[0495] It should also be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

[0496] Figure 14 FIG. 0 is a schematic diagram of a chip system 30 provided by an embodiment of the present application. The chip system 30 (or may also be referred to as a processing system) includes a logic circuit 31 and an input / output interface 32.

[0497] Among them, the logic circuit 31 can be a processing circuit in the chip system 30. The logic circuit 31 can be coupled to a storage unit and call instructions in the storage unit, so that the chip system 30 can implement the methods and functions of the embodiments of the present application. The input / output interface 32 can be an input / output circuit in the chip system 30, output the information processed by the chip system 30, or input the data or signaling information to be processed into the chip system 30 for processing.

[0498] As a solution, the chip system 30 is used to implement the operations performed by the terminal device in the above method embodiments.

[0499] For example, the logic circuit 31 is used to implement the processing-related operations performed by the terminal device in the above method embodiments; the 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.

[0500] The embodiment of the present application also provides a computer-readable storage medium, on which computer instructions for implementing the methods performed by the device in the above method embodiments are stored.

[0501] For example, when the computer program is executed by a computer, the computer can implement the methods performed by the terminal device or the network device in the above method embodiments.

[0502] The embodiment of the present application also provides a computer program product, including instructions, which when executed by a computer, implement the methods performed by the terminal device or the network device in the above method embodiments.

[0503] The embodiment of the present application also provides a communication system, including the aforementioned terminal device and network device.

[0504] The explanations and beneficial effects of the relevant content in any of the above-mentioned devices can refer to the corresponding method embodiments provided above, and will not be elaborated here.

[0505] Those of ordinary skill in the art will realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0506] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0507] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0508] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0509] In addition, the functional units in each embodiment of this application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0510] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art or a part of this 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 for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0511] As described above, the above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that: include: receiving a first message, wherein the first message indicates receiving a first signal; receiving a second message indicating a first resource set including a first resource and a second resource, wherein a time domain resource of the first resource is located on a sub-band full-duplex SBFD time unit, and a time domain resource of the second resource is located on a non-SBFD time unit; The first signal is received on resources other than the first and second resources.

2. The method according to claim 1, characterized in that 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 including 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 including 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 including 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; 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.

3. 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, the method further includes: receiving a third message, wherein the third message 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.

4. 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, the method further includes: A fourth message is received, the fourth message comprising a third field and a fourth field, the third field triggering the first resource in the first non-periodic ZP CSI-RS resource set table, and the fourth field triggering the second resource in the second non-periodic ZP CSI-RS resource set table.

5. The method according to claim 1, characterized in that: 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; Among them, 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.

6. 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: receiving a fifth message, the fifth message comprising 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.

7. 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, wherein the sixth message includes a seventh field and an eighth field, wherein the seventh field triggers the first resource in the non-periodic ZP CSI-RS resource set table, and the eighth field triggers the second resource in the non-periodic ZP CSI-RS resource set table.

8. The method according to claim 1, characterized in that: 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 a non-periodic ZP CSI-RS resource set table, each of the ZP CSI-RS resource sets includes less than or equal to 16 ZP CSI-RS resources, each of the ZP CSI-RS resources includes a first ZP CSI-RS sub-resource and a second ZP CSI-RS sub-resource, 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.

9. The method according to claim 8, characterized in that 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 offset parameters.

10. A communication method, characterized in that: include: Sending a first message, wherein the first message indicates receiving a first signal; Sending a second message, where the second message indicates a first resource set including a first resource and a second resource, where a time domain resource of the first resource is located in a sub-band full-duplex SBFD time unit, and a time domain resource of the second resource is located in a non-SBFD time unit; The first signal is sent on resources other than the first and second resources.

11. The method according to claim 10, characterized in that 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 including 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 including 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 including 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; 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.

12. The method according to claim 11, 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, the method further includes: sending a third message, the third message comprising a first field and a second field, the first field activating the first resource in the first semi-persistent ZP CSI-RS resource set table, and the second field activating 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.

13. The method according to claim 11, 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, the method further includes: A fourth message is sent, the fourth message comprising a third field and a fourth field, the third field triggers the first resource in the first non-periodic ZP CSI-RS resource set table, and the fourth field triggers the second resource in the second non-periodic ZP CSI-RS resource set table.

14. The method according to claim 10, characterized in that 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.

15. The method according to claim 14, 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: sending a fifth message, the fifth message comprising 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.

16. The method according to claim 14, 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 sent, wherein the sixth message includes a seventh field and an eighth field, wherein the seventh field triggers the first resource in the non-periodic ZP CSI-RS resource set table, and the eighth field triggers the second resource in the non-periodic ZP CSI-RS resource set table.

17. A communication method, characterized in that: include: Receive first indication information, where the first indication information indicates receiving a first signal on a first time-frequency resource; receiving second indication information, where the second indication information indicates a first ZP CSI-RS resource, where the first ZP CSI-RS resource is a time-frequency resource that is not used for receiving the first signal in a non-subband full-duplex SBFD time unit; receiving third indication information, where the third indication information indicates a second time-frequency resource, where the second time-frequency resource is a subset of the first ZP CSI-RS resource, and the second time-frequency resource is a time-frequency resource that is not used for receiving the first signal on a SBFD time unit; In an SBFD time unit, receiving the first signal in a third time-frequency resource in the first time-frequency resource, where the third time-frequency resource is a time-frequency resource in the first time-frequency resource except the second time-frequency resource; In a non-SBFD time unit, receiving a first signal on a fourth time-frequency resource in the first time-frequency resources, where the fourth time-frequency resource is a time-frequency resource in the first time-frequency resources except the first ZP CSI-RS resource; 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 except the second time-frequency resource.

18. A communication method, characterized in that: include: Sending first indication information, where the first indication information indicates receiving a first signal on a first time-frequency resource; Sending second indication information, where the second indication information indicates a first ZP CSI-RS resource, where the first ZP CSI-RS resource is a time-frequency resource that is not used for receiving the first signal in a non-subband full-duplex SBFD time unit; Sending third indication information, where the third indication information indicates a second time-frequency resource, where the second time-frequency resource is a subset of the first ZP CSI-RS resource, and the second time-frequency resource is a time-frequency resource that is not used for receiving the first signal in an SBFD time unit; In an SBFD time unit, sending the first signal on a third time-frequency resource in the first time-frequency resource, where the third time-frequency resource is a time-frequency resource in the first time-frequency resource except the second time-frequency resource; In a non-SBFD time unit, sending the first signal on a fourth time-frequency resource in the first time-frequency resources, where the fourth time-frequency resource is a time-frequency resource in the first time-frequency resources except the first ZP CSI-RS resource; 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 except the second time-frequency resource.

19. 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, and the at least one CSI-RS port is associated with the second time-frequency resource.

20. 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, and the at least one CDM group is associated with the second time-frequency resources.

21. 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 resources.

22. The method according to claim 21, characterized in that If the codebook type is configured as a single panel, the codebook type is related to the antenna configuration of the network device, and the index of the N CSI-RS ports includes: and or, and M / 2-(0~N / 2-1)-1, Wherein, M indicates the total number of antenna ports of the network device.

23. The method according to claim 21, characterized in that If the codebook type is configured as a double-panel, the codebook type is related to the antenna configuration of the network device, and the 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.

24. 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 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 the CSI reporting resource setting, 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.

25. A communication device, characterized in that: Used to implement the method as described in any one of claims 1 to 9, or used to implement the method as described in any one of claims 17 or 19 to 24.

26. The communication device according to claim 25, characterized in that The communication device includes a terminal device or a chip.

27. A communication device, characterized in that: Used to implement the method as claimed in any one of claims 10 to 16, or used to implement the method as claimed in any one of claims 18 to 24.

28. The communication device according to claim 27, characterized in that The communication device includes a network device or a chip.

29. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the method according to any one of claims 1 to 24 is performed.

30. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 24 is performed.

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