Communication method and apparatus

Abstract

A communication method and apparatus, which relate to the field of communications, and can carry a CLI measurement report between terminal devices by means of a PUCCH, thereby improving the reliability of CLI measurement reporting. In the method, a terminal device receives first DCI used for instructing the terminal device to perform first measurement reporting, which is cross link interference (CLI) measurement reporting between terminal devices, and the terminal device performs, on the basis of the first DCI, measurement corresponding to the first measurement reporting so as to obtain a measurement report, thereby sending the measurement report on a first physical uplink control channel (PUCCH).

Description

Communication method and apparatus

[0001] The present application claims priority to the Chinese Patent Application No. 202411083482.1, filed on August 7, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, in particular to a communication method and apparatus. BACKGROUND

[0003] Due to the fact that the uplink resources allocated in a time division duplexing (TDD) system are much less than the downlink resources, the uplink coverage is poor and the uplink delay is large. The current solution of introducing a subband full duplex (SBFD) scheme can increase the available uplink transmission resources of a terminal device, effectively improve the uplink coverage, and reduce the uplink delay.

[0004] In the SBFD scheme, one carrier is divided into multiple subbands, and the link directions of different subbands can be different. The downlink subbands are used for downlink transmission, and the uplink subbands are used for uplink transmission. Thus, a network device can simultaneously transmit and receive through different frequency domain resources (subbands) at the same time. However, in the SBFD scheme, the signal power in a subband can leak into the adjacent subband, which can cause interference between the uplink and the downlink, referred to as cross link interference (CLI). The CLI includes the CLI between terminal devices and the CLI between network devices.

[0005] For the CLI between terminal devices, one terminal device can perform CLI measurement on a reference signal from another terminal device, and send a CLI measurement report to a network device in a non-periodic measurement reporting manner. However, the non-periodic measurement reporting is triggered by downlink control information (DCI) for uplink scheduling, and the CLI measurement report can only be sent through a physical uplink shared channel (PUSCH), while the transmission reliability of the PUSCH is lower than that of the PUCCH. Thus, the reliability of the CLI measurement reporting is low. Therefore, how to solve the reliability of the CLI measurement reporting between terminal devices is an urgent research topic. SUMMARY

[0006] The application provides a communication method and device, which can improve the reliability of CLI measurement reporting between terminal devices.

[0007] To achieve the above object, the application adopts the following technical solutions:

[0008] In a first aspect, a communication method is provided, which can be applied to a terminal device side, such as a terminal device or a communication module in a terminal device, or a circuit or chip responsible for communication functions in a terminal device (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core). Taking the case where the method is applied to a terminal device, in the method: a first downlink control information (DCI) is received, the first DCI is used to instruct the terminal device to perform first measurement reporting, and the first measurement reporting is cross-link interference (CLI) measurement reporting between terminal devices. According to the first DCI, a measurement corresponding to the first measurement reporting is performed, and a measurement report is obtained. The measurement report is sent on a first physical uplink control channel (PUCCH).

[0009] In the method, the terminal device can perform CLI measurement reporting according to the trigger of the first DCI issued by the network device to instruct the CLI measurement reporting between terminal devices, and perform the CLI measurement reporting aperiodically, so as to send the CLI measurement report to the network device through the PUCCH, which can improve the flexibility and reliability of the CLI measurement reporting of the terminal device.

[0010] In a possible design, the first DCI can also be used to schedule a first physical downlink shared channel (PDSCH) transmission. In this way, the first DCI can also have the function of scheduling the PDSCH transmission, and can trigger the terminal device to perform CLI measurement reporting while scheduling the PDSCH transmission.

[0011] In a possible design, the first DCI can be DCI format 1_0 or DCI format 1_1 or DCI format 1_2. In this way, the first DCI can reuse the DCI format defined for scheduling the PDSCH transmission, which can reduce signaling overhead.

[0012] In a possible design, the sending the measurement report on the first PUCCH can include: sending the measurement report and a hybrid automatic repeat request-acknowledgement (HARQ-ACK) of the first PDSCH transmission on the first PUCCH. In this way, in a case where the first DCI is used for triggering the terminal device to report the CLI measurement and scheduling the PDSCH transmission, the terminal device can send the measurement report and the HARQ-ACK of the PDSCH transmission on the same PUCCH (the first PUCCH) according to the triggering of the first DCI, and the first PUCCH can be multiplexed with a PUCCH indicated in the first DCI to carry the HARQ-ACK of the PDSCH transmission, so that signaling overhead can be reduced.

[0013] In a possible design, the method in the first aspect can further include: sending the HARQ-ACK of the first PDSCH transmission on a second PUCCH. In this way, in a case where the first DCI is used for triggering the terminal device to report the CLI measurement and scheduling the PDSCH transmission, the terminal device can also send the measurement report and the HARQ-ACK of the PDSCH transmission on different PUCCHs, for example, sending the measurement report on the first PUCCH and sending the HARQ-ACK of the PDSCH transmission on the second PUCCH.

[0014] In a possible design, the sending time of the first PUCCH can be not earlier than the sending time of the second PUCCH. In this way, the network device can learn whether the terminal device receives the first DCI earlier, so as to schedule the measurement resource for the CLI measurement report and receive the measurement report from the terminal device, avoid resource waste, and improve system efficiency.

[0015] In a possible design, the first DCI is used for triggering the terminal device to report the CLI measurement between the terminal device and the terminal device, and is not used for scheduling the PDSCH transmission. In this way, the PDSCH transmission and the corresponding HARQ-ACK feedback can be avoided in a case where there is no downlink data transmission.

[0016] In a possible design, the first DCI can include first indication information, and the first indication information is used to indicate that the first PDSCH transmission is not scheduled; or the first DCI is DCI used to trigger CLI measurement reporting between the terminal device and the terminal device, and the first DCI is not used to schedule PDSCH transmission. In this way, the first DCI can also multiplex the defined DCI format used to schedule PDSCH transmission to indicate CLI measurement reporting, and the first indication information is defined in the first DCI to cancel the function of scheduling PDSCH transmission by the first DCI, so that the scheduling of PDSCH transmission and the corresponding HARQ-ACK feedback can be avoided when there is no downlink data transmission. Alternatively, the first DCI can also be a newly defined DCI format specially used to trigger the terminal device to perform CLI measurement reporting, and unnecessary PDSCH transmission and the corresponding HARQ-ACK feedback can also be avoided.

[0017] In a possible design, the measurement corresponding to the first measurement reporting according to the first DCI can include the following: after the second indication information is sent, the measurement corresponding to the first measurement reporting according to the first DCI is performed to obtain a measurement report, and the second indication information is used to indicate that the first DCI is detected. In this way, when the first DCI is not used to schedule PDSCH transmission, the terminal device will not have the corresponding ACK feedback, so that the network device cannot know whether the terminal device has received the first DCI. To avoid waste of measurement resources and PUCCH resources, the terminal device can send the second indication information to the network device before performing the CLI measurement reporting according to the first DCI, to inform the network device that the first DCI is received, so that resource waste can be reduced.

[0018] In a possible design, the second indication information can be sent on the third PUCCH. When the first DCI is not used to schedule PDSCH transmission, if the first DCI is a defined DCI format used to schedule PDSCH transmission, the PUCCH resource indicator field in the first DCI can be multiplexed to determine the PUCCH resource used for the third PUCCH transmission, and the PDSCH-to-HARQ_feedback timing indicator field in the first DCI can be multiplexed to determine the sending time (timing) of the third PUCCH transmission.

[0019] In a possible design, the first DCI can include third indication information, where the third indication information is used to indicate one or more measurement reports, and the one or more measurement reports include the first measurement report. In this way, the third indication information can be defined in the first DCI to indicate the number of measurement reports performed by the terminal device.

[0020] In a possible design, the method in the first aspect can further include: receiving first high-layer signaling, where the first high-layer signaling includes one or more measurement report configuration sets, each of the one or more measurement report configuration sets includes one or more measurement report configurations, each value state of the third indication information is associated with a measurement report configuration set of the one or more measurement report configuration sets, and each measurement report configuration is used to configure a measurement report. In this way, each value state of the third indication information in the first DCI is associated with a measurement report configuration set configured by the network device, the measurement report configuration sets associated with the respective value states of the third indication information are delivered by the network device through the first high-layer signaling, each measurement report configuration set includes at least one measurement report configuration, and each measurement report indicated by the third indication information is one-to-one corresponding to a measurement report configuration in the measurement report configuration set associated with the measurement report, i.e., each measurement report corresponding to the measurement report indicated by the third indication information is performed according to a measurement resource in a measurement report configuration in the measurement report configuration set associated with the measurement report.

[0021] In a possible design, the first DCI can include fourth indication information and fifth indication information, where the fourth indication information is used to determine a PUCCH resource used by the first PUCCH, and the fifth indication information is used to determine a transmission time of the first PUCCH. In this way, the PUCCH resource used to carry the CLI measurement report and the PUCCH transmission time can be determined according to the fourth indication information and the fifth indication information in the first DCI, respectively.

[0022] In a possible design, the first DCI can include fourth indication information, fifth indication information, sixth indication information, and seventh indication information, where the fourth indication information is used to determine a PUCCH resource used by the first PUCCH, the fifth indication information is used to determine a transmission time of the first PUCCH, the sixth indication information is used to determine a PUCCH resource used by the second PUCCH, and the seventh indication information is used to determine a transmission time of the second PUCCH. In this way, in the case that the measurement report and the HARQ-ACK of the PDSCH transmission are carried and transmitted on different PUCCHs, the PUCCH resource used to carry the CLI measurement report and the PUCCH transmission time can be determined according to the fourth indication information and the fifth indication information in the first DCI, respectively, and the PUCCH resource used to carry the HARQ-ACK and the PUCCH transmission time can be determined according to the sixth indication information and the seventh indication information in the first DCI, respectively.

[0023] In a possible design, the method in the first aspect can further include: receiving second high-layer signaling, the second high-layer signaling containing eighth indication information and ninth indication information, the eighth indication information being used to determine a PUCCH resource used by the first PUCCH, and the ninth indication information being used to determine a sending time of the first PUCCH. In this way, the PUCCH resource and the PUCCH sending time used to carry the CLI measurement report can also be determined according to the high-layer signaling sent by the network device.

[0024] In a possible design, the method in the first aspect can further include: if there is a physical uplink shared channel (PUSCH) transmission when the first PUCCH is sent, canceling sending of the first PUCCH. The PUSCH includes a measurement report. In this way, when the PUCCH and the PUSCH transmission conflict, the terminal device can cancel the PUCCH transmission, and send the PUSCH transmission, but needs to send the information (such as the measurement report, HARQ-ACK, etc.) carried by the PUCCH to the network device through the PDSCH.

[0025] In a second aspect, a communication method is provided, which can be applied to a network side, for example, a network device on the network side, a module (for example, a circuit, a processor, a chip, or a chip system, etc.) in the network device, or a logic node, a logic module, or software capable of realizing all or part of the functions of the network device. Taking the case where the method is applied to the network device, in the method: a first DCI is sent, the first DCI being used to instruct a terminal device to perform first measurement reporting, the first measurement reporting being CLI measurement reporting between the terminal device and the terminal device. A measurement report corresponding to the first measurement reporting is received on a first PUCCH.

[0026] In a possible design, the first DCI can also be used to schedule a first PDSCH transmission.

[0027] In a possible design, the first DCI can be DCI format 1_0 or DCI format 1_1 or DCI format 1_2.

[0028] In a possible design, receiving the measurement report corresponding to the first measurement reporting on the first PUCCH can include: receiving the measurement report and HARQ-ACK of the first PDSCH transmission on the first PUCCH.

[0029] In a possible design, the method in the second aspect can further include: receiving, on a second PUCCH, HARQ-ACK of the first PDSCH transmission.

[0030] In a possible design, the sending time of the first PUCCH can be no earlier than the sending time of the second PUCCH.

[0031] In a possible design, the first DCI is used for triggering the CLI measurement reporting between the terminal device and the terminal device, and is not used for scheduling the PDSCH transmission.

[0032] In a possible design, the first DCI can include first indication information, where the first indication information is used for indicating that the first PDSCH transmission is not scheduled; or the first DCI is DCI used for triggering the CLI measurement reporting between the terminal device and the terminal device, and the first DCI is not used for scheduling the PDSCH transmission.

[0033] In a possible design, the method in the second aspect can further include: before receiving the measurement report on the first PUCCH, receiving second indication information, where the second indication information is used for indicating that the first DCI is detected.

[0034] In a possible design, the second indication information can be carried on the third PUCCH and sent.

[0035] In a possible design, the first DCI can include third indication information, where the third indication information is used for indicating one or more measurement reports, and the one or more measurement reports include the first measurement report.

[0036] In a possible design, the method in the second aspect can further include: sending first high-layer signaling, where the first high-layer signaling includes one or more measurement report configuration sets, each measurement report configuration set in the one or more measurement report configuration sets includes one or more measurement report configurations, each value state of the third indication information is associated with a measurement report configuration set in the one or more measurement report configuration sets, and each measurement report configuration is used for configuring a measurement report.

[0037] In a possible design, the first DCI can include fourth indication information and fifth indication information, where the fourth indication information is used for determining the PUCCH resource used by the first PUCCH, and the fifth indication information is used for determining the sending time of the first PUCCH.

[0038] In a possible design, the first DCI can include fourth indication information, fifth indication information, sixth indication information, and seventh indication information, where the fourth indication information is used for determining the PUCCH resource used by the first PUCCH, the fifth indication information is used for determining the sending time of the first PUCCH, the sixth indication information is used for determining the PUCCH resource used by the second PUCCH, and the seventh indication information is used for determining the sending time of the second PUCCH.

[0039] In a possible design, the method of the second aspect further includes: receiving second high-layer signaling, the second high-layer signaling including eighth indication information and ninth indication information, the eighth indication information being used to determine a PUCCH resource used by the first PUCCH, and the ninth indication information being used to determine a transmission time of the first PUCCH.

[0040] The technical effects of the method of the second aspect can be referred to the related description of the technical effects of the method of the first aspect, and details are not repeated.

[0041] In a third aspect, a communication apparatus is provided for implementing the methods described above. The communication apparatus can be a terminal device in the first aspect, or a device including the terminal device, or a device included in the terminal device, such as a chip. The communication apparatus includes corresponding modules, units, or means for implementing the method of the first aspect, which can be implemented by hardware, software, or by executing corresponding software with hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0042] In some possible designs, the communication apparatus includes a processing module and a transceiver module. The transceiver module is configured to receive first downlink control information (DCI), the first DCI being used to instruct the terminal device to perform first measurement reporting, the first measurement reporting being cross-link interference (CLI) measurement reporting between the terminal device and another terminal device. The processing module is configured to perform measurement corresponding to the first measurement reporting according to the first DCI, to obtain a measurement report. The transceiver module is further configured to transmit the measurement report on a first physical uplink control channel (PUCCH).

[0043] In a possible design, the first DCI can be further used to schedule first physical downlink shared channel (PDSCH) transmission.

[0044] In a possible design, the first DCI can be DCI format 1_0, DCI format 1_1, or DCI format 1_2.

[0045] In a possible design, the transceiver module, configured to transmit the measurement report on the first PUCCH, can include that the transceiver module is configured to transmit the measurement report and hybrid automatic repeat request-acknowledgement (HARQ-ACK) of the first PDSCH transmission on the first PUCCH.

[0046] In a possible design, the transceiver module, configured to transmit the measurement report on the first PUCCH, can include that the transceiver module is configured to transmit the measurement report and hybrid automatic repeat request-acknowledgement (HARQ-ACK) of the first PDSCH transmission on the first PUCCH.

[0047] In a possible design, the sending time of the first PUCCH can be no earlier than the sending time of the second PUCCH.

[0048] In a possible design, the first DCI is used for triggering CLI measurement reporting between the terminal device and the terminal device, and is not used for scheduling PDSCH transmission.

[0049] In a possible design, the first DCI can include first indication information, where the first indication information is used to indicate that the first PDSCH transmission is not scheduled; or the first DCI is DCI used for triggering CLI measurement reporting between the terminal device and the terminal device, and the first DCI is not used for scheduling PDSCH transmission.

[0050] In a possible design, the processing module, configured to perform the first measurement reporting corresponding to the measurement according to the first DCI, to obtain a measurement report, can include: after the transceiver module is configured to send the second indication information, the processing module is configured to perform the first measurement reporting corresponding to the measurement according to the first DCI, to obtain a measurement report, and the second indication information is used to indicate that the first DCI is detected.

[0051] In a possible design, the second indication information can be carried on the third PUCCH and sent.

[0052] In a possible design, the first DCI can include third indication information, where the third indication information is used to indicate one or more measurement reporting, and the one or more measurement reporting includes the first measurement reporting.

[0053] In a possible design, the transceiver module is further configured to receive first high-layer signaling, where the first high-layer signaling includes one or more measurement reporting configuration sets, each measurement reporting configuration set in the one or more measurement reporting configuration sets includes one or more measurement reporting configurations, each value state of the third indication information is associated with a measurement reporting configuration set in the one or more measurement reporting configuration sets, and each measurement reporting configuration is used to configure a measurement reporting.

[0054] In a possible design, the first DCI can include fourth indication information and fifth indication information, where the fourth indication information is used to determine PUCCH resources used by the first PUCCH, and the fifth indication information is used to determine the sending time of the first PUCCH.

[0055] In a possible design, the first DCI can include fourth indication information, fifth indication information, sixth indication information, and seventh indication information, the fourth indication information is used to determine a PUCCH resource used by the first PUCCH, the fifth indication information is used to determine a sending time of the first PUCCH, the sixth indication information is used to determine a PUCCH resource used by the second PUCCH, and the seventh indication information is used to determine a sending time of the second PUCCH.

[0056] In a possible design, the transceiver is further configured to receive second high-layer signaling, the second high-layer signaling including eighth indication information and ninth indication information, the eighth indication information being used to determine a PUCCH resource used by the first PUCCH, and the ninth indication information being used to determine a sending time of the first PUCCH.

[0057] In a possible design, the processing module is further configured to cancel sending of the first PUCCH if there is a physical uplink shared channel (PUSCH) transmission when the first PUCCH is sent. The transceiver is further configured to send the PUSCH, and the PUSCH includes the measurement report.

[0058] In a possible design, the transceiver can include a receiving module and a sending module. The sending module is configured to implement the sending function of the communication apparatus in the third aspect, and the receiving module is configured to implement the receiving function of the communication apparatus in the third aspect.

[0059] In a possible design, the communication apparatus in the third aspect can further include a storage module that stores programs or instructions. When the processing module executes the programs or instructions, the communication apparatus in the third aspect can perform the method in the first aspect.

[0060] In a fourth aspect, a communication apparatus is provided for implementing the methods described above. The communication apparatus can be the network device in the second aspect, or a device including the network device, or a device included in the network device, such as a chip. The communication apparatus includes corresponding modules, units, or means for implementing the methods in the second aspect, which can be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0061] In a possible design, the communication apparatus includes a processing module and a transceiver. The processing module is configured to determine the first DCI. The transceiver is configured to transmit the first DCI, where the first DCI is used to instruct the terminal device to perform first measurement reporting, and the first measurement reporting is CLI measurement reporting between the terminal device and another terminal device. The transceiver is further configured to receive, on the first PUCCH, a measurement report corresponding to the first measurement reporting.

[0062] In a possible design, the first DCI can also be used to schedule the first PDSCH transmission.

[0063] In a possible design, the first DCI can be DCI format 1_0, DCI format 1_1, or DCI format 1_2.

[0064] In a possible design, the transceiver is further configured to receive, on the first PUCCH, a measurement report corresponding to the first measurement reporting, which can include that the transceiver is configured to receive, on the first PUCCH, the measurement report and HARQ-ACK of the first PDSCH transmission.

[0065] In a possible design, the transceiver is further configured to receive, on the second PUCCH, HARQ-ACK of the first PDSCH transmission.

[0066] In a possible design, the transmission time of the first PUCCH can be later than the transmission time of the second PUCCH.

[0067] In a possible design, the first DCI is used to trigger CLI measurement reporting between the terminal device and another terminal device, and is not used to schedule PDSCH transmission.

[0068] In a possible design, the first DCI can include first indication information, where the first indication information is used to indicate that the first PDSCH transmission is not scheduled; or the first DCI is DCI used to trigger CLI measurement reporting between the terminal device and another terminal device, and the first DCI is not used to schedule PDSCH transmission.

[0069] In a possible design, the transceiver is further configured to receive, before receiving the measurement report on the first PUCCH, second indication information, where the second indication information is used to indicate that the first DCI is detected.

[0070] In a possible design, the second indication information can be carried on the third PUCCH and transmitted.

[0071] In a possible design, the first DCI can include third indication information, and the third indication information is used to indicate one or more measurement reports, and the one or more measurement reports include the first measurement report.

[0072] In a possible design, the transceiver is further configured to send first high-layer signaling, and the first high-layer signaling includes one or more measurement report configuration sets, each of the one or more measurement report configuration sets includes one or more measurement report configurations, each value state of the third indication information is associated with a measurement report configuration set of the one or more measurement report configuration sets, and one measurement report configuration is used to configure one measurement report.

[0073] In a possible design, the first DCI can include fourth indication information and fifth indication information, the fourth indication information is used to determine a PUCCH resource used by the first PUCCH, and the fifth indication information is used to determine a sending time of the first PUCCH.

[0074] In a possible design, the first DCI can include fourth indication information, fifth indication information, sixth indication information, and seventh indication information, the fourth indication information is used to determine a PUCCH resource used by the first PUCCH, the fifth indication information is used to determine a sending time of the first PUCCH, the sixth indication information is used to determine a PUCCH resource used by the second PUCCH, and the seventh indication information is used to determine a sending time of the second PUCCH.

[0075] In a possible design, the transceiver is further configured to receive second high-layer signaling, and the second high-layer signaling includes eighth indication information and ninth indication information, the eighth indication information is used to determine a PUCCH resource used by the first PUCCH, and the ninth indication information is used to determine a sending time of the first PUCCH.

[0076] In a possible design, the transceiver can include a receiving module and a sending module. The sending module is configured to implement the sending function of the communication apparatus in the fourth aspect, and the receiving module is configured to implement the receiving function of the communication apparatus in the fourth aspect.

[0077] In a possible design, the communication apparatus in the fourth aspect can further include a storage module, and the storage module stores programs or instructions. When the processing module executes the programs or instructions, the communication apparatus in the fourth aspect can execute the method in the second aspect.

[0078] In a fifth aspect, a communication apparatus is provided, which comprises an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory is configured to store part or all of the necessary computer programs or instructions for implementing the functions related to the first aspect described above. The one or more processors can execute the computer programs or instructions, which, when executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect described above. The interface circuit is configured to implement the communication function within the communication apparatus and / or the communication function of the communication apparatus with other apparatuses or components.

[0079] In a possible design, the processor is configured to communicate with other apparatuses or components via the interface circuit.

[0080] In a possible design, the communication apparatus further comprises the memory.

[0081] The communication apparatus described above can be a terminal device, or a communication module in a terminal device, or a chip responsible for the communication function in a terminal device, such as a modem chip (also referred to as a baseband chip) or an SoC or SIP chip containing a modem module.

[0082] In a sixth aspect, a communication apparatus is provided, which comprises an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory is configured to store part or all of the necessary computer programs or instructions for implementing the functions related to the second aspect described above. The one or more processors can execute the computer programs or instructions, which, when executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the second aspect described above. The interface circuit is configured to implement the communication function within the communication apparatus and / or the communication function of the communication apparatus with other apparatuses or components.

[0083] In a seventh aspect, a communication system is provided, which comprises a terminal device configured to perform the method described in the first aspect, and a network device configured to perform the method described in the second aspect.

[0084] In an eighth aspect, a chip is provided, in which instructions are stored, which, when the chip is run on a communication device, cause the method described in the first aspect or the second aspect to be implemented.

[0085] In a ninth aspect, a computer readable storage medium is provided, in which computer readable instructions are stored, which, when read and executed by a computer, cause the computer to perform the method in any possible design of the first aspect to the second aspect.

[0086] In a tenth aspect, a computer program product including instructions, which, when executed by a computer, cause the computer to perform the method of any possible design of the first aspect to the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0087] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0088] FIG. 2 is a schematic diagram of an architecture of an O-RAN system according to an embodiment of the present application;

[0089] FIG. 3 is a schematic diagram of a function division of network elements and a protocol layer structure of an O-RAN device according to an embodiment of the present application;

[0090] FIG. 4 is a schematic diagram of a hardware structure of a baseband chip suitable for a terminal device according to an embodiment of the present application;

[0091] FIG. 5 is a schematic diagram of uplink and downlink resource distribution in a TDD system;

[0092] FIG. 6 is a schematic diagram of uplink and downlink resource distribution in an SBFD;

[0093] FIG. 7 is a schematic diagram of a CLI in an SBFD scenario;

[0094] FIG. 8 is a schematic diagram of a process of aperiodic CSI reporting;

[0095] FIG. 9 is a schematic diagram of a process of a communication method according to an embodiment of the present application;

[0096] FIG. 10 is a schematic diagram of a process of measurement reporting according to an embodiment of the present application;

[0097] FIG. 11 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0098] FIG. 12 is a schematic diagram of a structure of another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0099] In order to better understand the embodiments of the present application, the following points are explained before the embodiments of the present application are introduced.

[0100] First, in the embodiments of the present application, the first, second, and various numerical designations are only used for differentiation for convenience of description, and do not limit the scope of the embodiments of the present application. For example, different indication information is differentiated. For another example, the first network area and the second network area are only used to differentiate different areas, and do not limit the order. Those skilled in the art can understand that the words “first”, “second”, and the like do not limit the number and execution order, and the words “first”, “second”, and the like also do not necessarily mean different.

[0101] Secondly, in the embodiments of the present application, the descriptions such as "when", "in the case of", "if", and "whether" all refer to that the device (such as a terminal device or a network device) will make corresponding processing under certain objective circumstances, and are not limited to time, and do not require the device (such as a terminal device or a network device) to have a judgment action when implemented, nor mean that there are other limitations.

[0102] Thirdly, in the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner, for ease of understanding.

[0103] Fourthly, in the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of multiple items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0104] Finally, the network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, as the network architecture evolves and new service scenarios appear, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0105] The embodiments of the present application will present various aspects, embodiments or features around a system that can include multiple devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all the devices, components, modules, etc. discussed in connection with the drawings. In addition, combinations of these solutions can also be used.

[0106] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a wireless fidelity (Wi-Fi) system, a vehicle to everything (V2X) communication system, a device-to-device (D2D) communication system, a vehicle-to-everything communication system, a 4th generation (4G) mobile communication system, such as a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, a 5th generation (5G) mobile communication system, such as a new radio (NR) system, and a future communication system, and the like.

[0107] Referring to FIG. 1, FIG. 1 is a schematic diagram illustrating a possible and non-limiting communication system. As shown in FIG. 1, the communication system 1000 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 1000 can also include an Internet 300. The RAN 100 includes at least one RAN node (such as 110a and 110b in FIG. 1, collectively referred to as 110) and at least one terminal (such as 120a-120j in FIG. 1, collectively referred to as 120). The RAN 100 can also include other RAN nodes, such as a wireless relay device and / or a wireless backhaul device (not shown in FIG. 1), and the like. The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0108] The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, for example, a 4G, 5G mobile communication system, or a future evolution system. The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a Wi-Fi system. The RAN 100 can also be a communication system in which two or more of the above systems are integrated.

[0109] The RAN node 110, which can also be referred to as a network device, an access network device, a RAN entity, or an access node, etc., forms part of the communication system, and can be configured to facilitate wireless access by the terminals. The RAN nodes 110 in the communication system 1000 can be of the same type or different types. In some scenarios, the roles of a RAN node 110 and a terminal 120 are relative, e.g., a drone or a helicopter 120i in Figure 1 can be configured to move as a mobile base station, and for a terminal 120j accessing the RAN 100 via the drone 120i, the drone 120i is a base station; but for a base station 110a, the drone 120i is a terminal. Both the RAN nodes 110 and the terminals 120 are sometimes referred to as communication apparatuses, e.g., the network elements 110a and 110b in Figure 1 can be understood as communication apparatuses with base station functionalities, and the network elements 120a-120j can be understood as communication apparatuses with terminal functionalities.

[0110] In a possible scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The RAN node can be a macro base station (e.g., 110a in Figure 1), a micro base station or an indoor station (e.g., 110b in Figure 1), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in a V2X technology can be a road side unit (RSU). All or part of the functions of the RAN node in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform). The RAN node can also be provided with a communication module, circuit or chip for performing corresponding communication functions, and program instructions for performing corresponding communication functions. The RAN node in the present application can also be a logic node, a logic module or software capable of implementing all or part of the functions of the RAN node.

[0111] In another possible scenario, a terminal is assisted by multiple RAN nodes to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit, etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0112] In different systems, the CU (or CU-CP and CU-UP), DU, or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU, and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0113] A terminal can be a device or module with corresponding communication functions and can access the above-mentioned communication system. The terminal can also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, such as D2D, V2X communication, machine-type communication (MTC), internet of things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, transport vehicle with wireless communication function, communication module, etc. Embodiments of the present application do not limit the device form of the terminal. The terminal usually has a communication module, circuit or chip for performing corresponding communication functions. The terminal also has program instructions for performing corresponding communication functions.

[0114] It should be pointed out that the scheme in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of the corresponding functions in other communication systems. In the present application, unless otherwise specified, the RAN node is expressed as a network device, and the terminal is expressed as a terminal device.

[0115] The embodiments of the present application also provide an architecture diagram of an O-RAN system suitable for the above-mentioned communication system. As shown in FIG. 2, the above-mentioned network device can be a RAN (for example, it can be an eNB or gNB or an access network device in a future mobile communication system). The RAN can communicate with the core network device through a backhaul and communicate with the terminal device through an air interface.

[0116] Among them, the BBU in the access network device communicates with the core network through the backhaul, and the RU in the access network device communicates with at least one terminal device through the air interface. The BBU communicates with at least one RU through a fronthaul link. The BBU and the RU can be co-located or not co-located. The BBU includes at least one CU and at least one DU, which can communicate through at least one midhaul link.

[0117] Figure 3 is a schematic diagram of a network element function split and protocol layer structure of an O-RAN device. As shown in Figure 3, the access network device includes an access network device and a management system. In some examples, the CU is a logical node that carries a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU is connected to network nodes such as a core network through some interfaces, which can be an E2 interface or the like. Optionally, the CU can have part of the functions of the core network. The CU (e.g., the PDCP layer and higher layers) is connected to the DU (e.g., a radio link control (RLC) layer and lower layers) through some interfaces, which can be an F1 interface or the like. In some examples, these interfaces (e.g., the F1 interface) can provide control plane CU and user plane UP functions (e.g., interface management, system information management, terminal device context management, RRC message transmission, etc.). The F1AP is an application protocol of the F1 interface, which defines signaling procedures of the F1 in some examples. The F1 interface supports a control plane F1-C and a user plane F1-U.

[0118] In some examples, the CU can be split into a CU-CP and a CU-UP. The CU-CP is a logical node that carries an RRC layer and a control plane part of a PDCP (PDCP-C) layer, and is used to implement control plane functions of the CU. The CU-CP can interact with a network element in the core network that is used to implement control plane functions. The network element in the core network that is used to implement control plane functions can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of the terminal device to a network, handover of the terminal device, etc. The CU-UP is a logical node that carries an SDAP layer and a user plane part of a PDCP (PDCP-U) layer, and is used to implement user plane functions of the CU. The CU-UP can interact with a network element in the core network that is used to implement user plane functions. The network element in the core network that is used to implement user plane functions can be a user plane function (UPF) in a 5G system, which is used to be responsible for forwarding and receiving data in a terminal device.

[0119] The above configuration of CU and DU is merely an example, and the CU and DU can be configured to have functions as needed. For example, the CU or the DU can be configured to have functions of more protocol layers, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, partial functions of the RLC layer and functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to service types or other system requirements, for example, according to delay requirements. Functions that need to meet a relatively low delay requirement in processing time are arranged in the DU, and functions that do not need to meet the delay requirement are arranged in the CU.

[0120] In some examples, the DU is a logical node that carries an RLC layer, a medium access control (MAC) layer, a higher physical layer (Higher PHY), and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be a front-haul interface. In some examples, the Higher PHY layer includes part of the PHY processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0121] In some examples, the RU is a logical node that carries a lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP TRP or a RRH or other similar functional entity. In some examples, the Low-PHY includes part of the PHY processing, such as fast Fourier transform (FFT), inverse fast Fourier transform (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more terminal devices through a wireless link.

[0122] The DU and the RU can or can not be co-located. The DU and the RU exchange control plane information and user plane information via a lower-layer split-control, user and synchronization (LLS-CUS) interface over a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide a control plane CU and a user plane UP, respectively. In some examples, the control plane (CP) refers to real-time control between the DU and the RU. The DU and the RU exchange management information via a LLS-M interface of the fronthaul link, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU.

[0123] The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected to one or more RUs. The functions of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement intermediate radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a portion of the functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another portion of the functions of the PHY layer that are closer to the intermediate radio frequency side.

[0124] FIG. 4 is a schematic diagram of a hardware structure of a baseband chip suitable for a terminal device according to an embodiment of the present application. As shown in FIG. 4, the baseband chip can be implemented by a processing system including one or more processors. The processor includes a microprocessor (such as X86, advanced RISC machines (ARM)), a microcontroller, a digital signal processor (DSP), a field programmable gate array (FPGA), a graphics processing unit (GPU), a programmable logic device (PLD), a state machine, a gate logic, a discrete hardware circuit, and other suitable hardware configured to perform various functions. That is, the processor used in the baseband can be used to implement the processes and any one or more of the processes described below.

[0125] The processing system can be implemented with a bus architecture, generally represented by the bus 1202. The bus can include any number of interconnecting buses and bridges, depending on the specific application of the processing system and the overall design constraints. The bus links together various circuits such as the processor 1204, memory 1206, and computer-readable medium 1208. The bus can also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further. A bus interface 1210 provides the bus and the transceiver with an interface.

[0126] The transceiver provides a communication interface or means for communicating with various other apparatus over the wireless transmission medium. The transceiver can be coupled to an antenna array, and the transceiver and antenna array together can be used to communicate with the respective network types. At least one interface (e.g., network interface and / or user interface) provides a communication interface or means for communicating over the internal bus or via the external transmission medium.

[0127] The processor is responsible for managing the bus and general processing, including the execution of software stored on the computer-readable medium. The software, when executed by the processor, causes the processing system to perform the various functions described infra for any particular apparatus.

[0128] The functions of the processor, memory, and computer-readable medium can be implemented in hardware, software, firmware, or any combination thereof. Appropriate software can be stored in the memory and / or the computer-readable medium, and loaded into the memory and executed by the processor, when required. When executed by the processor, the software causes the processing system to perform the functions of the description below.

[0129] It can be understood that the above-mentioned FIG. 1-FIG. 4 are only simplified schematic diagrams for example and for understanding, and other devices or modules or chips and the like can also be included, which are not shown in the drawings.

[0130] The following introduces the related terms or technologies involved in the embodiments of the present application.

[0131] 1、SBFD

[0132] In the NR TDD system, as shown in FIG. 5, the downlink (DL) usually occupies the main time resource, i.e., the downlink resource is much more than the uplink resource, which causes the coverage imbalance between the DL and the uplink (UL). Compared with the frequency division duplexing (FDD) system, the uplink coverage of the TDD system is poor and the delay is large. To solve the problems of the uplink coverage and the delay in the TDD system, the SBFD scheme is introduced in the release (R) 19 standard.

[0133] In the SBFD scheme, one carrier is divided into multiple subbands, and the link directions of different subbands can be different. The downlink subband is used for DL transmission, and the uplink subband is used for UL transmission. A typical SBFD scheme is shown in (a) of FIG. 6. One carrier is divided into three subbands. The middle subband is an uplink subband, and the upper and lower subbands are downlink subbands. Another typical SBFD scheme is shown in (b) of FIG. 6. One carrier is divided into two subbands. The upper subband is a downlink subband, and the lower subband is an uplink subband.

[0134] The SBFD scheme has a time domain concept. The SBFD uplink and downlink subbands described above are configured on certain time slots or symbols, and are not necessarily located on all time slots or symbols. The time slots or symbols where the SBFD uplink and downlink subbands are located can be referred to as SBFD time slots or symbols.

[0135] The R19 standard specifies that the SBFD uplink and downlink subbands can be on the TDD downlink symbol or the flexible symbol. Taking (a) and (b) of FIG. 6 as examples, the SBFD uplink and downlink subbands are configured on the 2nd, 3rd and 4th time slots in a TDD cycle. The 1st time slot and the 5th time slot are not configured with the SBFD uplink and downlink subbands. The 1st time slot is still a downlink time slot, and the 5th time slot is still an uplink time slot. By introducing the SBFD scheme, the network device can realize simultaneous transmission and reception through different frequency domain resources (subbands) on the SBFD symbol. Under the SBFD scheme, the available uplink transmission resource of the terminal device is increased, which can effectively improve the uplink coverage and reduce the uplink delay.

[0136] 2. CLI

[0137] In the SBFD scheme, the signal power in the subband will leak into the adjacent subband, which will cause interference between the uplink and the downlink, which is referred to as CLI. According to the source of the interference, the CLI includes two categories:

[0138] (1) CLI between terminal devices (UE-to-UE CLI): mainly refers to the interference of the uplink signal sent by one terminal device to the downlink signal received by another terminal device in the same cell or a neighboring cell. As shown in FIG. 7, terminal device #0 is located in the cell of network device #0, and terminal device #1 and terminal device #2 are located in the cell of network device #1. The uplink signal (UL signal) sent by terminal device #1 and terminal device #2 will interfere with the downlink signal (DL signal) received by terminal device #0 located in the neighboring cell.

[0139] (2) CLI between network devices (gNB-to-gNB CLI): mainly refers to the interference of the downlink signal sent by one network device to the uplink signal received by another network device. As shown in FIG. 7, the downlink signal sent by network device #0 will interfere with the uplink signal received by network device #1.

[0140] Currently, R19 standard discusses the introduction of layer 1 (L1) UE-to-UE CLI measurement and reporting. The basic principle and process of L1 UE-to-UE CLI measurement and reporting is that one terminal device (such as UE_1) sends a measurement reference signal, and another terminal device (such as UE_2) measures the measurement reference signal, and reports the obtained measurement results (such as sounding reference signal (SRS)-reference signal receiving power (RSRP), CLI-received signal strength indication (RSSI)) to the network device or the serving cell. In this way, the network device or the serving cell can manage the UE-to-UE CLI by using the interference handling technology such as time-frequency domain coordinated scheduling according to the UE-to-UE CLI measurement report sent by UE_2.

[0141] As to the reporting of the UE-to-UE CLI measurement report by the terminal device to the network device, the standard agrees to at least support the measurement reporting in an aperiodic (AP) manner. The aperiodic measurement reporting refers to that the network device triggers the terminal device to perform the measurement reporting through other signaling such as DCI, and the terminal device does not need to perform the periodic measurement reporting when performing the measurement reporting. In the current aperiodic channel state information (CSI) measurement reporting, the aperiodic CSI measurement reporting is triggered through the DCI for uplink scheduling, for example, DCI format 0_0, DCI format 0_1, and DCI format 0_2. The DCI for uplink scheduling refers to that these DCIs can schedule PUSCH transmission, and the corresponding measurement report of the aperiodic measurement reporting is reported to the network device through the PUSCH.

[0142] As shown in FIG. 8, the network device triggers the terminal device to perform the aperiodic CSI measurement reporting through the PDCCH sending the DCI (UL DCI) for uplink scheduling, and sends the CSI-reference signal (RS) to the terminal device. Correspondingly, the terminal device can perform measurement on the CSI-RS, and report the aperiodic CSI report (AP CSI report) to the network device through the PUSCH.

[0143] However, the current aperiodic CSI measurement reporting is performed on the PUSCH, and cannot be performed on the PUCCH. The current aperiodic L1 UE-to-UE CLI measurement reporting is multiplexed with the existing aperiodic CSI measurement reporting process, so that the aperiodic L1 UE-to-UE CLI measurement reporting can also be performed on the PUSCH, and cannot be performed on the PUCCH. This limits the flexibility of the aperiodic L1 UE-to-UE CLI measurement reporting on one hand, and the transmission reliability of the PUSCH is generally lower than that of the PUCCH, resulting in lower reliability of the aperiodic L1 UE-to-UE CLI measurement reporting.

[0144] Therefore, the embodiment of the present application provides a communication method and device, which can solve the problem that the CLI measurement report between the terminal device and the terminal device can only be carried through the PUSCH and cannot be carried through the PUCCH.

[0145] The communication method provided by the embodiment of the present application will be described in detail below with reference to FIGS. 9-10.

[0146] Exemplarily, FIG. 9 is a flow diagram of a communication method provided by the embodiments of the present application. It can be understood that the network device and the terminal device shown in FIG. 1 are taken as an example to illustrate the execution subject of the interaction, but the present application is not limited to the execution subject of the interaction. For example, the method executed by the network device in the present application can also be implemented by a module (such as a circuit, a processor, a chip or a chip system, etc.) in the network device, or a logic node, a logic module or software capable of realizing all or part of the functions of the network device; the method executed by the terminal device in the present application can also be implemented by a communication module in the terminal device or a circuit or chip (such as a modem chip (also known as a baseband chip), or a SoC chip containing a modem core, or a SIP chip) responsible for communication functions in the terminal device.

[0147] As shown in FIG. 9, the communication method comprises:

[0148] S901, the network device sends a first DCI to the terminal device. Correspondingly, the terminal device receives the first DCI from the network device.

[0149] The first DCI is used to instruct the terminal device to perform a first measurement reporting.

[0150] The first measurement reporting is a CLI measurement reporting between terminal devices, and the first measurement reporting can mean that a terminal device (such as a first terminal device) receiving the first DCI receives a measurement reference signal sent by a terminal device (such as a second terminal device) in the same cell or adjacent cell on the corresponding configured measurement resource, obtains a CLI measurement result by measuring the measurement reference signal, and reports the CLI measurement result to the network device in the form of a measurement report through a PUCCH. The measurement reference signal is, for example, an SRS, and the CLI measurement result is, for example, an SRS-RSRP, a CLI-RSSI, etc. The CLI measurement result can be used to determine the interference of the uplink signal sent by the second terminal device to the downlink signal received by the first terminal device.

[0151] That is, the network device can trigger the terminal device to perform the CLI measurement reporting between terminal devices by issuing the first DCI, or the first DCI is used to instruct the CLI measurement reporting between terminal devices, and the measurement reporting triggered by the first DCI in the embodiments of the present application is reported through a PUCCH. It should be understood that since the first measurement reporting is triggered by the first DCI, the first measurement reporting is a CLI measurement reporting in a non-periodic manner.

[0152] For the first DCI, the embodiments of the present application exemplarily give the following possible designs:

[0153] Design 1, the first DCI is not only used for indicating the first measurement reporting, but also used for scheduling the PDSCH transmission, or in other words, the first DCI is used for indicating the first measurement reporting and scheduling the PDSCH transmission simultaneously.

[0154] In this design 1, the first DCI can also be used for scheduling the first PDSCH transmission. That is, the network device can make the terminal device receiving the first DCI to receive the first PDSCH according to the first PDSCH transmission resource indicated by the first DCI, to feed back the corresponding HARQ-ACK to the network device through the corresponding PUCCH, and to perform the first measurement reporting according to the corresponding measurement reporting configuration, to feed back the measurement result to the network device through the corresponding PUCCH, by sending the first DCI to the terminal device.

[0155] The first DCI can be a DCI used for scheduling the PDSCH transmission, for example, the first DCI can be DCI format 1_0, DCI format 1_1, or DCI format 1_2, by multiplexing the DCI format used for scheduling the PDSCH transmission, the DCI of this format has the function of indicating the terminal device to perform the first measurement reporting on the basis of having the function of scheduling the PDSCH transmission, and the DCI having the functions of scheduling the PDSCH transmission and triggering the first measurement reporting is the first DCI.

[0156] Design 2, the first DCI is used for indicating the terminal device to perform the first measurement reporting, but not for scheduling the PDSCH transmission.

[0157] In this design 2, the first DCI does not have the function of scheduling the PDSCH transmission, but has the function of triggering the terminal device to perform the first measurement reporting. That is, the network device sending the first DCI to the terminal device can make the terminal device receiving the first DCI to perform the first measurement reporting according to the corresponding measurement reporting configuration, without receiving the PDSCH and feeding back the corresponding HARQ-ACK to the network device through the PUCCH. For design 2, there are two possible designs as follows:

[0158] Design 2-1, the first indication information can be included in the first DCI, and the first indication information is used for indicating that the first PDSCH transmission is not scheduled.

[0159] In the design 2-1, the first DCI can be a DCI for scheduling a PDSCH transmission, for example, the first DCI can be a DCI format 1_0, a DCI format 1_1, or a DCI format 1_2, but whether the function of scheduling the PDSCH transmission of the first DCI is effective is controlled by including the first indication information in the first DCI.

[0160] That is, by multiplexing the DCI format for scheduling the PDSCH transmission, the DCI of the format also has the function of indicating the terminal device to perform the first measurement reporting, the first indication information can be defined in the DCI having both the functions of scheduling the PDSCH transmission and triggering the first measurement reporting (equivalent to the first DCI in the design 1), to control the function of scheduling the PDSCH transmission of the DCI, when the first indication information is used to indicate that the first PDSCH transmission is not scheduled, it can be considered that the function of scheduling the PDSCH transmission of the first DCI is deactivated or inactivated, at this time the first DCI only has the function of triggering the terminal device to perform the first measurement reporting, and no longer has the function of scheduling the PDSCH transmission. Therefore, it can be avoided that when there is no downlink data transmission, the terminal device is triggered to perform the first measurement reporting at the same time by multiplexing the DCI format for scheduling the PDSCH transmission, accompanied by scheduling unnecessary PDSCH transmission and corresponding HARQ-ACK feedback.

[0161] In some implementations, the first indication information can also be used to indicate scheduling the first PDSCH transmission, at this time the first DCI has both the functions of scheduling the PDSCH transmission and triggering the terminal device to perform the first measurement reporting, and the first DCI can be equivalent to the first DCI in the design 1. For example, the first indication information can be indicated by a 1-bit indication field, a bit value of 1 indicates scheduling the first PDSCH transmission, a bit value of 0 indicates not scheduling the first PDSCH transmission, or a bit value of 0 indicates scheduling the first PDSCH transmission, and a bit value of 1 indicates not scheduling the first PDSCH transmission, which is not limited.

[0162] Optionally, the first indication information can be a newly defined indication field, such as a newly defined field in a reserved field, different values of the field are used to indicate whether to schedule the first PDSCH transmission. Optionally, the first indication information can also multiplex one or more indication fields already defined in the first DCI, such as a HARQ process number field, a redundancy version (RV) field, a modulation and coding scheme (MCS) field, etc., whether to schedule the first PDSCH transmission is indicated by setting the value of one or more indication fields already defined in the first DCI to a special value, which is not limited.

[0163] The first DCI is a DCI for triggering the CLI measurement reporting between the terminal device and the terminal device, and the first DCI is not used for scheduling the PDSCH transmission.

[0164] In the design 2-2, the first DCI can be a DCI format specially designed for triggering the CLI measurement reporting between the terminal device and the terminal device, and the first DCI does not have the function of PDSCH transmission. The first DCI can be a DCI dedicated to the terminal device, or a common DCI applicable to a group of terminal devices, and no limitation is made thereto.

[0165] For the first DCI designed based on the above design 1 and design 2, the first DCI can include third indication information, and the third indication information is used to indicate one or more measurement reports, and the one or more measurement reports include the first measurement report. That is, the CLI measurement reporting between the terminal device and the terminal device triggered by the first DCI can be multiple, and the first measurement report can be any one of the multiple measurement reports.

[0166] Optionally, the third indication information can also be a newly defined indication field, or can reuse one or more indication fields already defined in the first DCI, such as the HARQ process number field, the RV field, the MCS field, and the like, and no limitation is made thereto.

[0167] In some possible implementations, the third indication information can directly indicate the number of measurement reports, for example, the third indication information is indicated by X bits, X is a positive integer, and the value of the X bits is the number of measurement reports.

[0168] For each measurement report triggered by the first DCI, there is a measurement report configuration corresponding to the measurement report, that is, the measurement corresponding to one measurement report is implemented according to one measurement report configuration, and the measurement report configuration can include the CLI measurement resource, the measurement report configuration, and the like.

[0169] In this implementation, each measurement report triggered by the first DCI corresponds to which measurement report configuration issued by the network device can exist the following design:

[0170] Each value of the third indication information can also be associated with a network device configured measurement report configuration set, one measurement report configuration set includes one or more measurement report configurations, one measurement report configuration corresponds to one measurement report, different value states are associated with different measurement report configuration sets, and the number of measurement report configurations contained in the measurement report configuration set associated with the third indication information is the same as the value of the third indication information. At this time, the network device can send the first high layer signaling to the terminal device, and correspondingly, the terminal device receives the first high layer signaling. The first high layer signaling includes one or more measurement report configuration sets.

[0171] The plurality of measurement reporting configuration sets contained in the first high-layer signaling can be measurement reporting configuration sets with the same number of measurement reporting configurations but different configuration contents. The different configuration contents can be different measurement resources, measurement reporting configurations, etc. in the measurement reporting configurations, and the like, and no limitation is made thereto.

[0172] For example, the first high-layer signaling includes four measurement reporting configuration sets, each of which can correspond to a set index. Each value state of the third indication information can be associated with an index of a measurement reporting configuration set, such as measurement reporting configuration sets #0-#3. Measurement reporting configuration set #0 includes measurement configuration #0 and measurement configuration #1, measurement reporting configuration set #1 includes measurement configuration #1 and measurement configuration #2, measurement reporting configuration set #2 includes measurement configuration #1 and measurement configuration #3, and measurement reporting configuration set #4 includes measurement configuration #3 and measurement configuration #4. If the value of the third indication information is 1, it is associated with measurement reporting configuration set #1, so that the terminal device can perform corresponding measurement reporting according to the two measurement reporting configurations in measurement reporting configuration set #1.

[0173] In some possible implementations, the third indication information can also indirectly indicate the number of measurement reporting. For example, the third indication information is indicated by X bits, and different values of the X bits are associated with a measurement reporting configuration set issued by the network device. At this time, the third indication information can be used to indicate or determine the measurement reporting configuration set or at least one measurement reporting configuration. According to the number of measurement reporting configurations contained in the associated measurement reporting configuration set, the number of measurement reporting can be determined.

[0174] In this implementation, the network device can also send the first high-layer signaling to the terminal device, and correspondingly, the terminal device receives the first high-layer signaling. The first high-layer signaling includes one or more measurement reporting configuration sets, each of the one or more measurement reporting configuration sets includes one or more measurement reporting configurations, each value state of the third indication information is associated with a measurement reporting configuration set in the one or more measurement reporting configuration sets, and one measurement reporting configuration corresponds to one measurement reporting.

[0175] That is, each value of the third indication information in the first DCI is associated with a measurement reporting configuration set configured by the network device, the measurement reporting configuration set associated with each value of the third indication information is delivered by the network device through the first high-layer signaling, one measurement reporting configuration set includes at least one measurement reporting configuration, and the measurement reporting indicated by the third indication information is one-to-one corresponding to the measurement reporting configuration in the measurement reporting configuration set associated with the third indication information. The plurality of measurement reporting configuration sets contained in the first high-layer signaling can include measurement reporting configuration sets with the same number of measurement reporting configurations but different configuration contents, or measurement reporting configuration sets with different numbers of measurement reporting configurations but the same part of configuration contents, and the same is not limited.

[0176] Therefore, the terminal device can determine a measurement reporting configuration set from one or more measurement reporting configurations delivered by the network device according to the value of the third indication information, so as to perform measurement reporting according to the measurement reporting configuration in the measurement reporting configuration set, and the number of measurement reporting configurations in the measurement reporting configuration set is the number of measurement reporting.

[0177] For example, the value of the third indication information is 2, the index of the measurement reporting configuration set associated with the third indication information is also 2, if the measurement reporting configuration set with the index of 2 includes 4 measurement reporting configurations, one measurement reporting configuration corresponds to one measurement reporting, and the terminal device performs measurement reporting according to the 4 measurement reporting configurations.

[0178] Optionally, the measurement reporting configuration in each measurement reporting configuration set can correspond to a configuration index, and one measurement reporting configuration set can also correspond to a configuration index of the measurement reporting configuration, and the same is not limited.

[0179] Optionally, the first high-layer signaling can be RRC signaling or MAC signaling, and the same is not limited.

[0180] Optionally, in an embodiment, the measurement reporting configurations contained in the plurality of measurement reporting configuration sets configured by the first high-layer signaling are all inter-terminal CLI measurement reporting configurations, instead of non-inter-terminal CLI measurement reporting configurations, i.e., existing CSI measurement reporting configurations. It can be considered that in this embodiment, the first high-layer signaling is specifically used for inter-terminal CLI measurement reporting configuration. For non-inter-terminal CLI measurement reporting configuration, i.e., existing CSI measurement reporting configuration, it can be configured by the network device through other high-layer signaling.

[0181] In another implementation, the first high layer signaling configures a plurality of sets of measurement reporting configurations, and a part of the measurement reporting configurations in each set of measurement reporting configurations is a CLI measurement reporting configuration, and another part of the measurement reporting configurations is a non-CLI measurement reporting configuration, i.e., an existing CSI measurement reporting configuration. Specifically, there are two possible ways. Way one: a part of the sets of measurement reporting configurations configured by the first high layer signaling includes all CLI measurement reporting configurations, and another part of the sets of measurement reporting configurations includes all non-CLI measurement reporting configurations, i.e., existing CSI measurement reporting configurations. In this implementation, it can be considered that the measurement reporting configurations in each set of measurement reporting configurations are all CLI measurement reporting configurations or all non-CLI measurement reporting configurations, i.e., existing CSI measurement reporting configurations. Way two: a part of the measurement reporting configurations in each set of measurement reporting configurations configured by the first high layer signaling includes CLI measurement reporting configurations, and another part of the measurement reporting configurations includes non-CLI measurement reporting configurations, i.e., existing CSI measurement reporting configurations. In this implementation, it can be considered that each set of measurement reporting configurations includes both CLI measurement reporting configurations and non-CLI measurement reporting configurations, i.e., existing CSI measurement reporting configurations. The above content can be implemented independently and is not limited to the non-periodic inter-terminal CLI measurement reporting on the PUCCH, but can also be used for non-periodic inter-terminal CLI measurement reporting on the PUSCH, or semi-persistent inter-terminal CLI measurement reporting on the PUCCH, or semi-persistent inter-terminal CLI measurement reporting on the PUSCH.

[0182] In this way, the network device can trigger the terminal device to perform at least one measurement reporting, i.e., report at least one measurement report, by issuing the first DCI.

[0183] In some possible implementations, the network device can also indicate the terminal device to perform at least one inter-terminal CLI measurement reporting through high layer signaling such as RRC signaling or MAC signaling, and the indication manner is similar to the first DCI, which will not be described herein.

[0184] S902, the terminal device performs a measurement corresponding to the first measurement reporting according to the first DCI, and obtains a measurement report.

[0185] After receiving the first DCI, the terminal device can trigger the measurement corresponding to at least one measurement reporting (including the first measurement reporting) according to the first DCI, and obtain a measurement report. The measurement report can include a CLI measurement result, and the CLI measurement result can include a measurement quantity and / or an index of an associated measurement reporting configuration.

[0186] For example, the terminal device can obtain, according to the third indication information in the first DCI, a measurement reporting configuration set associated with the value of the third indication information from the obtained first high-layer signaling, and perform corresponding measurement according to the measurement resource in each measurement reporting configuration in the associated measurement reporting configuration set, such as receiving a measurement reference signal from the measurement resource to perform measurement and obtain a measurement result. For example, the measurement quantity is SRS-RSRP, and the measurement resource includes SRS-RSRP measurement resource. For another example, the measurement quantity is CLI-RSSI, and the measurement resource includes CLI-RSSI measurement resource.

[0187] Optionally, one measurement reporting can correspond to one measurement report, or one measurement report can include measurement results corresponding to multiple measurement reporting, and no limitation is made thereto.

[0188] In the above design 2, since the first DCI is not used to schedule PDSCH transmission, the terminal device will not feed back the corresponding HARQ-ACK to the network device, and thus the network device cannot determine whether the terminal device receives the first DCI, that is, the terminal device may not detect the first DCI, and thus will not use the corresponding measurement resource to perform measurement, nor will it send the measurement report through the PUCCH. In order to avoid the waste of measurement resource and / or PUCCH resource in this scenario, the terminal device can feed back an information to the network device before performing measurement according to the first DCI, to indicate whether it receives the first DCI.

[0189] In a possible implementation, after receiving the first DCI, the terminal device can send second indication information to the network device, and then perform first measurement reporting corresponding measurement according to the first DCI to obtain a measurement report. The second indication information is used to indicate that the first DCI is detected.

[0190] It should be understood that in some implementations, the second indication information can also be used to indicate that the first DCI is not detected. For example, the terminal device does not receive the first DCI within a preset time period, and it can also send the second indication information to the network device to indicate that it does not detect the first DCI. In the case where the first DCI is not detected, the terminal device can not need to perform measurement reporting.

[0191] Optionally, the second indication information can be sent on the third PUCCH.

[0192] Optionally, the indication information for determining the resource of the third PUCCH and the indication information for determining the transmission time of the third PUCCH can be included in the first DCI. In design 2-1, the PUCCH resource of the third PUCCH can be determined according to the PUCCH resource indicator field in the first DCI, and the transmission time of the third PUCCH can be determined according to the PDSCH-to-HARQ_feedback timing indicator field in the first DCI. In design 2-2, the PUCCH resource of the third PUCCH or the transmission time of the third PUCCH can be determined according to the newly added or newly defined indication field in the first DCI.

[0193] Optionally, the indication information for determining the resource of the third PUCCH and the indication information for determining the transmission time of the third PUCCH can also be delivered by the network device through high-layer signaling, i.e., the high-layer signaling includes the indication information for determining the resource of the third PUCCH and the indication information for determining the transmission time of the third PUCCH. Optionally, the high-layer signaling can be RRC signaling or MAC signaling, etc., which is not limited.

[0194] S903, the terminal device sends the measurement report to the network device on the first PUCCH. Correspondingly, the network device receives the measurement report from the terminal device on the first PUCCH.

[0195] After the terminal device obtains the measurement report by measuring on the corresponding measurement resource according to the first DCI, it can send the measurement report to the network device on the first PUCCH.

[0196] For the configuration of the PUCCH resource (which can include time domain, frequency domain and code domain resources) and the transmission time of the first PUCCH:

[0197] For the above design 1, since the first DCI schedules PDSCH transmission and triggers the terminal device to perform measurement and reporting, the terminal device needs to feed back the HARQ-ACK of the PDSCH transmission through the PUCCH, and also needs to feed back the measurement report through the PUCCH. For the above design 1, there are two possible implementation ways as follows:

[0198] In a possible implementation 1, the HARQ-ACK of the feedback PDSCH transmission and the PUCCH of the feedback measurement report are the same. That is, the HARQ-ACK of the PDSCH transmission and the measurement report are both carried on the first PUCCH for transmission. Thus, the terminal device can transmit the measurement report and the HARQ-ACK of the first PDSCH transmission on the first PUCCH, and correspondingly, the network device can receive the measurement report and the HARQ-ACK of the first PDSCH transmission on the first PUCCH.

[0199] In this implementation 1, the first DCI can include fourth indication information and fifth indication information. The fourth indication information is used to determine the PUCCH resource used by the first PUCCH, and the fourth indication information can directly indicate the PUCCH resource of the first PUCCH or indirectly indicate the PUCCH resource of the first PUCCH. The fifth indication information is used to determine the transmission time of the first PUCCH, and the fifth indication information can directly indicate the transmission time of the first PUCCH or indirectly indicate the transmission time of the first PUCCH, such as indicating the relative transmission time of the first PUCCH.

[0200] Optionally, the fourth indication information can be indicated by a PUCCH resource indicator field in the first DCI, and the fifth indication information can be indicated by a PDSCH-to-HARQ_feedback timing indicator field in the first DCI, that is, the fifth indication information is used to indicate the time offset of the first PUCCH used by the HARQ feedback relative to the PDSCH transmission. In some implementations, the fourth indication information and the fifth indication information can be indicated by newly adding or newly defining an indication field in the first DCI, such as adding a PUCCH resource indicator field to determine the PUCCH resource of the first PUCCH, and adding a timing indicator field to determine the transmission time of the first PUCCH, which is not limited.

[0201] Thus, the terminal device can determine the PUCCH resource used by the first PUCCH according to the fourth indication information in the first DCI, and determine the transmission time of the first PUCCH according to the fifth indication information. Thus, the terminal device can use the corresponding PUCCH resource to transmit the first PUCCH carrying the measurement report and the HARQ-ACK of the first PDSCH transmission at the corresponding transmission time.

[0202] In a possible implementation 2, the PUCCHs for feeding back the HARQ-ACK corresponding to the PDSCH transmission and the measurement report are different. That is, the measurement report is carried on a first PUCCH for transmission, and the HARQ-ACK corresponding to the PDSCH transmission is carried on a second PUCCH different from the first PUCCH for transmission. Thus, the terminal device transmits the HARQ-ACK of the first PDSCH transmission on the second PUCCH in addition to transmitting the measurement report on the first PUCCH, and correspondingly, the network device receives the HARQ-ACK of the first PDSCH transmission on the second PUCCH.

[0203] In this implementation 2, in a possible design, the first DCI can include fourth indication information, fifth indication information, sixth indication information, and seventh indication information, the fourth indication information is used to determine the PUCCH resource used by the first PUCCH, the fifth indication information is used to determine the transmission time of the first PUCCH, the sixth indication information is used to determine the PUCCH resource used by the second PUCCH, and the seventh indication information is used to determine the transmission time of the second PUCCH.

[0204] It should be understood that at this time, the fourth indication information and the sixth indication information can also indirectly indicate the PUCCH resource, or can directly indicate the PUCCH resource, and the fifth indication information and the seventh indication information can also indirectly indicate the PUCCH transmission time, or can directly indicate the PUCCH transmission time.

[0205] The fourth indication information and the fifth indication information can be indicated by newly defined or newly added indication fields in the first DCI, for example, a PUCCH resource indicator field is newly added to determine the PUCCH resource of the first PUCCH, and a timing indicator field is newly added to determine the transmission time of the first PUCCH, which is not limited.

[0206] Optionally, the sixth indication information can still be indicated by the PUCCH resource indication (PUCCH resource indicator) field in the first DCI, and the seventh indication information can be indicated by the PDSCH-to-HARQ feedback timing indication (PDSCH-to-HARQ_feedback timing indicator) field in the first DCI, that is, the transmission resource and the transmission time of the second PUCCH for carrying the HARQ-ACK of the first PDSCH transmission are the same as those in the existing implementation, so as to reduce signaling overhead.

[0207] Thus, the terminal device can determine the PUCCH resource used by the first PUCCH and the transmission time of the first PUCCH according to the fourth indication information and the fifth indication information in the first DCI, respectively, and can determine the PUCCH resource used by the second PUCCH and the transmission time of the second PUCCH according to the sixth indication information and the seventh indication information in the first DCI, respectively. Therefore, the terminal device can use the corresponding PUCCH resource at the corresponding transmission time to respectively transmit the first PUCCH carrying the measurement report and the second PUCCH carrying the HARQ-ACK of the first PDSCH transmission.

[0208] In another possible design, the indication information for determining the PUCCH resource used by the first PUCCH and the transmission time of the first PUCCH can be delivered by the network device through high-layer signaling. In this design, the network device can send second high-layer signaling to the terminal device, and correspondingly, the terminal device can receive the second high-layer signaling from the network device. The second high-layer signaling contains eighth indication information and ninth indication information, the eighth indication information is used to determine the PUCCH resource used by the first PUCCH, and the ninth indication information is used to determine the transmission time of the first PUCCH.

[0209] The PUCCH resource used by the second PUCCH can be determined according to the PUCCH resource indicator field in the first DCI, and the transmission time of the second PUCCH can be determined according to the PDSCH-to-HARQ_feedback timing indicator field in the first DCI, or the indication information for determining the PUCCH resource used by the second PUCCH and the indication information for determining the transmission time of the second PUCCH can also be delivered by the network device through second high-layer signaling or other high-layer signaling, or new indication fields can be added in the first DCI to determine the PUCCH resource and the transmission time of the second PUCCH, which is not limited.

[0210] It should be understood that the eighth indication information can also indirectly indicate the PUCCH resource, and can also directly indicate the PUCCH resource, the ninth indication information can also indirectly indicate the PUCCH transmission time, and can also directly indicate the PUCCH transmission time, the eighth indication information can be equivalent to the fourth indication information described above, and the ninth indication information can be equivalent to the fifth indication information described above.

[0211] Optionally, the second high-layer signaling can be RRC signaling or MAC signaling, etc., which is not limited.

[0212] Therefore, the terminal device can determine the PUCCH resource used by the first PUCCH and the transmission time of the first PUCCH according to the eighth indication information and the ninth indication information in the second high layer signaling. Thus, the terminal device can transmit the first PUCCH carrying the measurement report using the corresponding PUCCH resource at the corresponding transmission time.

[0213] The terminal device can determine the PUCCH resource used by the second PUCCH and the transmission time of the second PUCCH according to the PUCCH resource indicator field in the first DCI, or the terminal device can determine the PUCCH resource used by the second PUCCH and the transmission time of the second PUCCH according to the indication information for determining the PUCCH resource used by the second PUCCH and the indication information for determining the transmission time of the second PUCCH in the high layer signaling, without limitation. Thus, the terminal device can transmit the second PUCCH carrying the HARQ-ACK of the first PDSCH transmission using the corresponding PUCCH resource at the corresponding transmission time.

[0214] Optionally, the transmission time of the first PUCCH can be no earlier than the transmission time of the second PUCCH. Thus, the network device can learn earlier whether the terminal device receives the first DCI, so as to schedule the measurement resource for CLI measurement reporting, receive the measurement report from the terminal device, avoid resource waste, and improve system efficiency.

[0215] In the above design 1, whether the terminal device supports the manner of reporting the HARQ-ACK and the measurement report in the above implementation 1, or supports the manner of reporting the HARQ-ACK and the measurement report in the above implementation 2, or supports the manners of reporting the HARQ-ACK and the measurement report in the above implementation 1 and implementation 2 can be determined according to the capability of the terminal device. For example, the terminal device can have the capability of supporting the manner of reporting the HARQ-ACK and the measurement report in the above implementation 1, or have the capability of supporting the manner of reporting the HARQ-ACK and the measurement report in the above implementation 2, or have the capability of supporting the manners of reporting the HARQ-ACK and the measurement report in the above implementation 1 and implementation 2.

[0216] For the above design 2, since the first DCI does not schedule the PDSCH transmission but only triggers the terminal device to perform measurement reporting, the terminal device does not need to feed back the HARQ-ACK of the PDSCH transmission through the PUCCH.

[0217] In a possible design, the fourth indication information and the fifth indication information can be included in the first DCI.

[0218] In design 2-1, the first DCI is a DCI format used for scheduling a PDSCH transmission, the fourth indication information can be indicated by a PUCCH resource indicator field in the first DCI, and the fifth indication information can be indicated by a PDSCH-to-HARQ_feedback timing indicator field in the first DCI. Alternatively, since there is no HARQ-ACK feedback of the PDSCH transmission, the PDSCH-to-HARQ_feedback timing indicator field can be used to indicate a time offset between the first PUCCH and the measurement resource.

[0219] In design 2-2, the first DCI is a DCI format used for indicating the CLI measurement reporting between the terminal device and the terminal device, and the fourth indication information and the fifth indication information can be indicated by newly defined or newly added indication fields in the first DCI, for example, a PUCCH resource indicator field is added to determine the PUCCH resource of the first PUCCH, and a timing indicator field is added to determine the transmission time of the first PUCCH, which is not limited.

[0220] In another possible design, similar to the above design 1, the indication of the PUCCH resource used by the first PUCCH and the transmission time of the first PUCCH can be sent by the network device through high-layer signaling, which can be referred to the related description above, and details are not described herein.

[0221] Therefore, in design 2, the terminal device can also obtain the indication information for determining the PUCCH resource used by the first PUCCH and the indication information for determining the transmission time of the first PUCCH through the first DCI or the second high-layer signaling, so as to transmit the first PUCCH carrying the measurement report at the corresponding transmission time using the corresponding PUCCH resource.

[0222] In a possible design, the PUCCH resource and the transmission time of the first PUCCH can also be pre-configured or pre-defined to the terminal device, or determined according to a pre-configured or pre-defined rule, which is not limited.

[0223] In one possible scenario, if there is PUSCH transmission when the terminal device transmits the first PUCCH, the terminal device cancels the first PUCCH transmission and transmits the PUSCH, and the PUSCH includes the measurement report. That is, when the PUCCH and the PUSCH transmission conflict, the terminal device can cancel the PUCCH transmission and transmit the PUSCH transmission, but needs to send the information (such as the measurement report, HARQ-ACK, etc.) carried by the PUCCH to the network device through the PDSCH.

[0224] In the communication method shown in FIG. 9, the terminal device can send the CLI measurement report to the network device through the PUCCH according to the first DCI issued by the network device to indicate the terminal device to perform the CLI measurement reporting between the terminal device and the terminal device, which can improve the flexibility and reliability of the terminal device to perform the aperiodic CLI measurement reporting.

[0225] The specific implementation of the above design 1 and design 2 will be described below in conjunction with FIG. 10.

[0226] As shown in (a) of FIG. 10, the first DCI is used to schedule the PDSCH transmission and to indicate to perform the first measurement reporting. The network device sends the first DCI on the PDCCH, and correspondingly, the terminal device receives the PDSCH according to the first DCI and performs the corresponding measurement on the corresponding measurement resource to perform the first measurement reporting, so as to carry the HARQ-ACK of the PDSCH transmission and the measurement report on the first PUCCH for transmission.

[0227] As shown in (b) of FIG. 10, the first DCI is used to schedule the PDSCH transmission and to indicate to perform the first measurement reporting. The network device sends the first DCI on the PDCCH, and correspondingly, the terminal device receives the PDSCH according to the first DCI and performs the corresponding measurement on the corresponding measurement resource to perform the first measurement reporting, so as to carry the measurement report on the first PUCCH for transmission, and carry the HARQ-ACK of the PDSCH transmission on the second PUCCH for transmission.

[0228] As shown in (c) of FIG. 10, the first DCI is used to indicate to perform the first measurement reporting but is not used to schedule the PDSCH transmission, the network device sends the first DCI on the PDCCH, and correspondingly, the terminal device performs the corresponding measurement on the corresponding measurement resource according to the first DCI to perform the first measurement reporting, so as to carry the measurement report on the first PUCCH for transmission, and there is no ACK feedback at this time, that is, the terminal device first detects the first DCI, and if the terminal device detects the first DCI, the terminal device performs measurement using the corresponding measurement resource, and then sends the measurement report to the network device through the first PUCCH.

[0229] As shown in (d) of FIG. 10, the first DCI is used to instruct to perform the first measurement reporting but is not used to schedule the PDSCH transmission, the network device sends the first DCI in the PDCCH, and correspondingly, after the terminal device receives the first DCI, the terminal device first sends the second indication information to the network device through the third PUCCH to indicate that the terminal device receives the first DCI, and then performs the first measurement reporting on the corresponding measurement resource according to the first DCI to correspondingly measure, so as to send the measurement report on the first PUCCH, at this time, there is ACK feedback, that is, the terminal device first detects the first DCI, after the ACK feedback detecting the first DCI, the terminal device uses the corresponding measurement resource to perform measurement, and then sends the measurement report to the network device through the first PUCCH.

[0230] In addition, in the embodiment of the present application, the uplink resource used by one of the two terminal devices for sending the uplink signal and the downlink resource used by the other terminal device for receiving the downlink signal are realized based on SBFD.

[0231] Regarding the frequency domain configuration of SBFD, at least a downlink sub-band and an uplink sub-band can be included in one carrier. A guard band can be provided between the downlink sub-band and the uplink sub-band, or the guard band can not be provided, which is not limited. Whether data transmission can be performed on the guard band is also not limited. In addition, whether the downlink sub-band and the uplink sub-band can overlap is also not limited by the present application.

[0232] Regarding the time domain configuration of SBFD, according to whether SBFD symbols and non-SBFD symbols are contained in one time slot at the same time, the following two possible configuration modes exist:

[0233] (1) SBFD configuration mode one: the symbols contained in one time slot are all configured as SBFD symbols, or all configured as non-SBFD symbols.

[0234] (2) SBFD configuration mode two: the symbols contained in one time slot can be configured as SBFD symbols in part and as non-SBFD symbols in part.

[0235] Among them, the SBFD symbol can be considered as a symbol configured with SBFD operation, and the non-SBFD symbol can be considered as a symbol without SBFD operation. For uplink transmission, the non-SBFD symbol can be an uplink symbol or a flexible symbol, and for downlink transmission, the non-SBFD symbol can be a downlink symbol or a flexible symbol, which is not limited.

[0236] The above takes the network device as an example to illustrate the scheme provided by the embodiments of the present application. In the network device of the O-RAN architecture as shown in FIG. 2 or FIG. 3, the actions performed by the network device can also be performed in the CU, the DU, or the RU.

[0237] In the CU, the actions can be performed in the CU-CP. The CU-CP is a logical node that carries the RRC layer and the PDCP-C layer, and is used to implement the control plane function of the CU. In the present scheme, the CU-CP can be used to generate RRC signaling indicating the first measurement reporting, and send the RRC signaling to the DU.

[0238] The DU is a logical node that carries the RLC layer, the MAC layer, the Higher PHY, and other functions. In the present scheme, the DU can perform RLC layer, MAC layer, Higher PHY layer, and other processing on the RRC signaling generated in the CU-CP, and send the RRC signaling processed by the RLC layer, the MAC layer, the Higher PHY layer, and the like to the RU.

[0239] The RU is a logical node that carries the Lower PHY and RF processing. In the present scheme, the RU can further perform Lower PHY and RF processing and other processing on the RRC signaling processed by the RLC layer, the MAC layer, the Higher PHY layer, and the like, and send the RRC signaling to the terminal device through the air interface.

[0240] Alternatively, in the present scheme, as described in S901 above, the DU in the network device can generate the first DCI for indicating the first measurement reporting, and send the first DCI to the RU for processing. The first DCI processed by the RU is sent to the terminal device through the air interface. Accordingly, as described in S903 above, the RU can receive the first PUCCH carrying the measurement report from the terminal device, and send the first PUCCH to the DU for processing, so that the DU can process the first PUCCH to obtain the measurement report.

[0241] By using the CU-CP to generate the RRC signaling indicating the first measurement reporting, and using the DU to generate the DCI indicating the first measurement reporting and process the received PUCCH to obtain the aperiodic CLI measurement report, the aperiodic CLI measurement reporting based on the PUCCH can be implemented, and the flexibility and reliability of the aperiodic measurement reporting can be improved.

[0242] In addition, the actions performed by the terminal device in the scheme can also be terminal chip processing as shown in FIG. 4. The processor can include communication and processing circuitry. The communication and processing circuitry can include one or more hardware components that provide a physical structure for performing various processes related to wireless communication (e.g., signal reception and / or signal transmission). The communication and processing circuitry can include one or more transmit / receive chains. For example, the processor can receive high-layer signaling (RRC signaling) or physical layer signaling (DCI) sent by the network device, etc. The functions implemented by the communication and processing circuitry can also be processed on a computer readable medium.

[0243] The processor can also process the received signaling, for example, demodulation, decoding, etc., to obtain the configuration / instruction information carried, such as the aperiodic CLI measurement reporting configuration carried by the high-layer signaling and the DCI triggering the aperiodic CLI measurement reporting. The processor can also perform measurement according to the aperiodic CLI measurement reporting configuration, obtain measurement results, and generate a corresponding measurement report. The processor can also generate a PUCCH carrying the measurement report and send it to the network device through the air interface.

[0244] It can be understood that the methods and / or steps implemented by the network device in the above various embodiments can also be implemented by components (such as processors, chips, chip systems, circuits, logic modules, or software) available for the network device; the methods and / or steps implemented by the terminal device can also be implemented by components (such as processors, chips, chip systems, circuits, logic modules, or software) available for the terminal device.

[0245] The above mainly introduces the schemes provided in the present application. Correspondingly, the present application also provides a communication apparatus for implementing various methods in the above method embodiments. The communication apparatus can be the network device in the above method embodiments, or an apparatus containing the network device, or a component available for the network device, such as a chip or a chip system. Alternatively, the communication apparatus can be the terminal device in the above method embodiments, or an apparatus containing the terminal device, or a component available for the terminal device, such as a chip or a chip system.

[0246] It should be understood that, in order to achieve the above functions, the communication apparatus comprises hardware structures and / or software modules corresponding to the functions. Those skilled in the art can easily understand that, in combination with the embodiments disclosed in the present document, the units and algorithm steps of the examples described above can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in the form of hardware or computer software driving hardware depends on a specific application and design constraint condition of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but the implementation should not be considered beyond the scope of the present application.

[0247] The embodiments of the present application can divide the functional modules of the communication apparatus according to the method embodiments described above. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The integrated module can be implemented in the form of hardware or software functional module. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical functional division. Actual implementation can have another division manner.

[0248] Taking the communication apparatus as the network device or the terminal device in the method embodiments described above, FIG. 11 is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application. As shown in FIG. 11, the communication apparatus 1100 includes a processing module 1101 and a transceiver module 1102. The processing module 1101 is configured to perform the processing functions of the network device or the terminal device in the method embodiments described above. The transceiver module 1102 is configured to perform the transceiving functions of the network device or the terminal device in the method embodiments described above. The related content of each step in the method embodiments described above can be referred to the function description of the corresponding functional module, and will not be repeated here.

[0249] In a possible design, the transceiver module 1102 in the embodiments of the present application can include a receiving module and a sending module (not shown in FIG. 11). The sending module and the receiving module are respectively configured to implement the sending function and the receiving function of the communication apparatus 1100.

[0250] In a possible design, the communication apparatus 1100 can further include a storage module (not shown in FIG. 11), which stores a program or instructions. When the processing module 1101 executes the program or instructions, the communication apparatus 1100 can perform the functions of the network device or the terminal device in the method shown in FIG. 9.

[0251] In some embodiments, the processing module 1101 involved in the communication device 1100 can be implemented by a processor or processor-related circuit component, which can be a processor or processing unit; the transceiver module 1102 can be implemented by a transceiver or transceiver-related circuit component, which can be a transceiver or transceiving unit.

[0252] Exemplarily, FIG. 12 is a structural schematic diagram of another communication device provided by the embodiments of the present application. The communication device can be the network device or the terminal device in the above-mentioned method embodiments, or can be a chip (system) or other components or assemblies that can be arranged in the network device or the terminal device. As shown in FIG. 12, the communication device 1200 can include a processor 1201, a bus 1202, a communication interface 1203, and a memory 1204. The processor 1201, the memory 1204, and the communication interface 1203 communicate through the bus 1202. The communication device 1200 can be the network device or the terminal device. It should be understood that the number of processors and memories in the communication device 1200 is not limited by the present application.

[0253] The bus 1202 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, only one line is shown in FIG. 12, but it does not mean that there is only one bus or only one type of bus. The bus 1202 can include a path for transmitting information between various components (for example, the memory 1204, the processor 1201, and the communication interface 1203) of the communication device 1200.

[0254] The processor 1201 can include any one or more of a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP) or the like.

[0255] The memory 1204 can include volatile memory, such as random access memory (RAM), and non-volatile memory, such as read-only memory (ROM), flash memory, a hard disk drive (HDD), or a solid-state drive (SSD).

[0256] The communication interface 1203 uses a transceiving module such as, but not limited to, a network interface card, a transceiver, to enable communication between the communication apparatus 1200 and other devices or communication networks.

[0257] The memory 1204 stores executable program code, and the processor 1201 executes the executable program code to respectively implement the functions of the network device or the terminal device in the foregoing method embodiments. That is, the memory 1204 has instructions for executing the foregoing communication method.

[0258] In yet another aspect, the embodiments of the present application further provide a computer program product containing instructions, which, when executed on a communication apparatus, enable the communication apparatus to perform the method described in any of the foregoing embodiments.

[0259] In yet another aspect, the embodiments of the present application further provide a computer readable storage medium. The computer readable storage medium stores computer programs or instructions, which, when executed on a communication apparatus, enable the communication apparatus to perform the method described in any of the foregoing embodiments.

[0260] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or data storage device such as one or more servers, data centers, etc. integrated with one or more media. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, DVD), or semiconductor media (for example, solid state disk (SSD)) and the like.

[0261] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Skilled professionals can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0262] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0263] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. The division of the units is merely logical function division. There can be other division manners in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0264] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment. In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit.

[0265] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that make contributions to the prior art, or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a ROM, a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0266] Although the present application is described herein in conjunction with various embodiments, other variations of the disclosed embodiments can be understood and implemented by those skilled in the art with reference to the attached drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. Some measures described in mutually different dependent claims can be combined and produce good results.

[0267] Although the present application has been described in connection with certain specific features and embodiments thereof, it is to be understood that it is provided as an example to the best of the applicant's knowledge and that various modifications and combinations of the described features and embodiments are possible and are within the spirit and scope of the application. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense, and all such modifications and variations are considered within the scope of the present application as defined by the following claims and their equivalents. Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the claims and their equivalents, the present application can be practiced otherwise than as specifically described.

Claims

1. A communication method characterized by comprising: The method comprises: receiving a first downlink control information (DCI), the first DCI being used for instructing a terminal device to perform a first measurement reporting, the first measurement reporting being a cross-link interference (CLI) measurement reporting between terminal devices; performing a measurement corresponding to the first measurement reporting according to the first DCI, to obtain a measurement report; sending the measurement report on a first physical uplink control channel (PUCCH).

2. The method of claim 1, wherein, The first DCI is also used for scheduling a first physical downlink shared channel (PDSCH) transmission.

3. The method of claim 2, wherein, The sending of the measurement report on the first PUCCH comprises: sending the measurement report and a hybrid automatic repeat request-acknowledgement (HARQ-ACK) of the first PDSCH transmission on the first PUCCH.

4. The method of claim 2, wherein, The method further comprises: sending a HARQ-ACK of the first PDSCH transmission on a second PUCCH.

5. The method of claim 1, wherein, The first DCI comprises first indication information, the first indication information being used for indicating that no first PDSCH transmission is scheduled; or The first DCI is a DCI used for triggering a CLI measurement reporting between terminal devices, and the first DCI is not used for scheduling a PDSCH transmission.

6. The method of claim 5, wherein, The performing of a measurement corresponding to the first measurement reporting according to the first DCI to obtain a measurement report comprises: after sending second indication information, performing a measurement corresponding to the first measurement reporting according to the first DCI to obtain the measurement report, the second indication information being used for indicating that the first DCI is detected.

7. The method according to any one of claims 1 to 6, characterized in that, The first DCI comprises third indication information, the third indication information being used for indicating one or more measurement reports, the one or more measurement reports comprising the first measurement report.

8. The method of claim 7, wherein, The method further comprises: receiving first high-layer signaling, the first high-layer signaling comprising one or more measurement reporting configuration sets, each measurement reporting configuration set in the one or more measurement reporting configuration sets comprising one or more measurement reporting configurations, each value state of the third indication information being associated with a measurement reporting configuration set in the one or more measurement reporting configuration sets, and one measurement reporting configuration being used for configuring one measurement report.

9. The method according to any one of claims 1-8, characterized in that, The first DCI comprises fourth indication information and fifth indication information, the fourth indication information being used for determining a PUCCH resource used by the first PUCCH, and the fifth indication information being used for determining a sending time of the first PUCCH.

10. The method of claim 4, wherein, The first DCI comprises fourth indication information, fifth indication information, sixth indication information and seventh indication information, the fourth indication information being used for determining a PUCCH resource used by the first PUCCH, the fifth indication information being used for determining a sending time of the first PUCCH, the sixth indication information being used for determining a PUCCH resource used by the second PUCCH, and the seventh indication information being used for determining a sending time of the second PUCCH.

11. The method of any one of claims 4-6, wherein, The method further comprises: receiving second high layer signaling, the second high layer signaling including eighth indication information and ninth indication information, the eighth indication information being used to determine a PUCCH resource used by the first PUCCH, and the ninth indication information being used to determine a transmission time of the first PUCCH.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: canceling the first PUCCH transmission if there is a physical uplink shared channel (PUSCH) transmission when the first PUCCH is transmitted; transmitting the PUSCH, the PUSCH including the measurement report.

13. A method of communication, comprising: The method includes: transmitting first DCI, the first DCI being used to instruct a terminal device to perform first measurement reporting, the first measurement reporting being CLI measurement reporting between the terminal device and another terminal device; receiving a measurement report corresponding to the first measurement reporting on a first PUCCH.

14. The method of claim 13, wherein, The first DCI is further used to schedule first PDSCH transmission.

15. The method of claim 14, wherein, The receiving the measurement report corresponding to the first measurement reporting on the first PUCCH includes: receiving the measurement report and HARQ-ACK of the first PDSCH transmission on the first PUCCH.

16. The method of claim 14, wherein, The method further includes: receiving HARQ-ACK of the first PDSCH transmission on a second PUCCH.

17. The method of claim 13, wherein, The first DCI includes first indication information, the first indication information being used to indicate that the first PDSCH transmission is not scheduled; or The first DCI is DCI used to trigger CLI measurement reporting between the terminal device and another terminal device, and the first DCI is not used to schedule PDSCH transmission.

18. The method of claim 17, wherein, The method further includes: receiving second indication information before the receiving the measurement report on the first PUCCH, the second indication information being used to indicate that the first DCI is detected.

19. The method according to any one of claims 13-18, characterized by, The first DCI includes third indication information, the third indication information being used to indicate one or more measurement reportings, the one or more measurement reportings including the first measurement reporting.

20. The method of claim 19, wherein, The method further includes: transmitting first high layer signaling, the first high layer signaling including one or more measurement reporting configuration sets, each measurement reporting configuration set in the one or more measurement reporting configuration sets including one or more measurement reporting configurations, each value state of the third indication information being associated with a measurement reporting configuration set in the one or more measurement reporting configuration sets, and one measurement reporting configuration being used to configure one measurement reporting.

21. The method according to any one of claims 13-20, characterized by, The first DCI includes fourth indication information and fifth indication information, the fourth indication information being used to determine a PUCCH resource used by the first PUCCH, and the fifth indication information being used to determine a transmission time of the first PUCCH.

22. The method of claim 16, wherein, The first DCI includes fourth indication information, fifth indication information, sixth indication information and seventh indication information, the fourth indication information is used for determining PUCCH resource used by the first PUCCH, the fifth indication information is used for determining the sending time of the first PUCCH, the sixth indication information is used for determining PUCCH resource used by the second PUCCH, and the seventh indication information is used for determining the sending time of the second PUCCH.

23. The method of any one of claims 16-18, wherein, The method further includes: receiving second high layer signaling, the second high layer signaling containing eighth indication information and ninth indication information, the eighth indication information being used for determining PUCCH resource used by the first PUCCH, and the ninth indication information being used for determining the sending time of the first PUCCH.

24. A communications device, characterized by A module for performing the method of any of claims 1-12, or any of claims 13-23.

25. A communications device, characterized by Including: a processor; The processor is configured to run computer programs or instructions to enable the method of any of claims 1-12, or any of claims 13-23 to be implemented.

26. A communication chip, comprising: The chip has instructions stored therein, which, when the chip is running on a communication device, enable the method of any of claims 1-12, or any of claims 13-23 to be implemented.

27. A computer-readable storage medium, characterized in that, The computer readable storage medium has computer programs or instructions stored therein, which, when executed by a communication device, enable the method of any of claims 1-12, or any of claims 13-23 to be implemented.

28. A computer program product, characterised in that, The computer program code, when executed on a communication device, enables the communication device to implement the method of any of claims 1-12, or any of claims 13-23.

Images