CLI measuring method, device and equipment

Abstract

Provided are a CLI measurement method, apparatus and device, the method comprising: receiving SRS configuration information sent by a first serving base station of a first UE, the SRS configuration information comprising an SRS resource used by a second UE, the second UE being an interference UE that interferes with the first UE; receiving an SRS signal sent by the second UE through the SRS resource on the SRS resource used by the second UE, wherein the SRS signal is used for acquiring the SRS-RSRP corresponding to the SRS resource; and sending a CLI measurement result of the first UE to the first service base station, wherein the CLI measurement result comprises the SRS-RSRP. Through the scheme of the invention, the CLI between the UE can be reduced, and the data transmission performance is improved.

Description

CLI measurement method, device and equipment Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a CLI measurement method, apparatus, and device. Background Art

[0002] The TDD (Time Division Duplex) system is widely used in mobile communication systems, such as the 5G system. In the TDD system, the frame structure can be divided into DL (Downlink) time slots, UL (Uplink) time slots, and flexible time slots.

[0003] A DL time slot includes multiple DL symbols, and downlink data is processed in the frequency domain resources corresponding to these DL symbols. A UL time slot includes multiple UL symbols, and uplink data is processed in the frequency domain resources corresponding to these UL symbols. A flexible time slot includes at least one F (Flexible) symbol. The F symbol can be used for DL, i.e., downlink data is processed in the frequency domain resources corresponding to the F symbol. The F symbol can also be used for UL, i.e., uplink data is processed in the frequency domain resources corresponding to the F symbol. The F symbol can also be used for a GP (Guard Period), i.e., the frequency domain resources corresponding to the F symbol are used to protect uplink and downlink switching.

[0004] The TDD system may operate in HD (Half Duplex) mode, that is, at the same time, the same frequency domain resources may only be used for UL or DL.

[0005] Summary of the Invention

[0006] The present application provides a CLI measurement method, which is applied to a first UE. If the first UE is a victim UE with intra-subband interference, the method includes:

[0007] receiving SRS configuration information sent by a first serving base station of the first UE, where the SRS configuration information includes an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0008] receiving, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, where the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0009] Sending a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP.

[0010] The present application provides a CLI measurement method, which is applied to a base station. If the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, the method includes:

[0011] If it is determined that the first UE is a victim UE, obtaining SRS configuration information, where the SRS configuration information includes SRS resources used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0012] Sending the SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to obtain configuration information of the SRS resource used by the second UE, and receive an SRS signal sent by the second UE through the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0013] Receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP.

[0014] The present application provides a CLI measurement device, which is applied to a first UE. If the first UE is a victim UE with intra-subband interference, the device includes:

[0015] a receiving module, configured to receive SRS configuration information sent by a first serving base station of the first UE, where the SRS configuration information includes an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0016] The receiving module is further configured to receive, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, where the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0017] A sending module is configured to send a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP.

[0018] The present application provides a CLI measurement device, which is applied to a base station. If the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, the device includes:

[0019] a determining module, configured to determine that the first UE is a victim UE;

[0020] an acquiring module, configured to acquire SRS configuration information if it is determined that the first UE is a victim UE, the SRS configuration information including an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0021] a sending module, configured to send the SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to obtain configuration information of the SRS resource used by the second UE, and receive an SRS signal sent by the second UE through the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0022] A receiving module is configured to receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP.

[0023] The present application provides a user equipment, comprising: a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions that can be executed by the processor; the processor is configured to execute the machine-executable instructions to implement the above-mentioned example CLI measurement method.

[0024] The present application provides a base station, comprising: a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions that can be executed by the processor; the processor is configured to execute the machine-executable instructions to implement the above-mentioned example CLI measurement method.

[0025] The above technical solution demonstrates that in F-TDD (Flexible Time Division-Duplex) or SBFD (Sub-Band Full Duplex) systems, cross-link interference (CLI) between user equipment (UEs) can affect overall system performance. By obtaining UE CLI measurement results, inter-UE coordinated scheduling can be implemented based on these CLI measurements, reducing inter-UE CLI and improving data transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 1A and 1B are schematic flow diagrams of a CLI measurement method in one example;

[0027] FIG2 is a schematic diagram of an F-TDD network structure in an example;

[0028] FIG3A is a schematic diagram of intra-subband CLI measurement and reporting in an example;

[0029] FIG3B is a schematic diagram of inter-subband CLI measurement and reporting in an example;

[0030] 4A and 4B are schematic structural diagrams of a CLI measurement device in one example;

[0031] FIG5A is a schematic structural diagram of a user equipment in an example;

[0032] FIG5B is a schematic diagram of the structure of a base station in an example. DETAILED DESCRIPTION

[0033] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms "a," "the," and "the" used in this application and claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to any or all possible combinations of one or more associated listed items.

[0034] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" used may also be interpreted as "at the time of" or "when" or "in response to determining".

[0035] In an example of the present application, a CLI measurement method is proposed. The method can be applied to a first UE. The serving base station of the first UE is denoted as the first serving base station. If the first UE is a victim UE with intra-subband interference, FIG1A is a flow chart of the CLI measurement method. The method may include:

[0036] Step 111: Receive SRS configuration information sent by a first serving base station of a first UE, where the SRS configuration information may include SRS resources used by a second UE, and the second UE is an interfering UE that interferes with the first UE. The serving base station of the second UE is referred to as a second serving base station.

[0037] Step 112: Receive an SRS signal sent by the second UE through the SRS resource on the SRS resource used by the second UE, where the SRS signal is used to obtain the SRS-RSRP corresponding to the SRS resource, i.e., measure the SRS signal of the second UE to obtain the SRS-RSRP of the SRS signal.

[0038] Step 113: Send the CLI measurement result of the first UE to the first serving base station. The CLI measurement result may include SRS-RSRP, that is, the SRS-RSRP corresponding to the SRS resource.

[0039] In an example of the present application, a CLI measurement method is proposed. The method can be applied to a base station. If the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, FIG1B is a flow chart of the CLI measurement method. The method may include:

[0040] Step 121: If it is determined that the first UE is a victim UE, SRS configuration information is obtained, where the SRS configuration information includes SRS resources used by a second UE, where the second UE is an interfering UE that interferes with the first UE.

[0041] Step 122: Send SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to know the configuration information of the SRS resource used by the second UE, and receive the SRS signal sent by the second UE through the SRS resource, and the SRS signal is used to obtain the SRS-RSRP corresponding to the SRS resource.

[0042] Step 123: Receive a CLI measurement result sent by the first UE. The CLI measurement result may include the SRS-RSRP, that is, the SRS-RSRP corresponding to the SRS resource.

[0043] In an example, the first serving base station determines that the first UE is a victim UE, which may include but is not limited to:

[0044] If the first serving base station detects that the downlink data transmission of the first UE in the fixed time slot fails, and the first serving base station determines that the fixed time slot of the adjacent base station is an uplink time slot or a flexible time slot based on the frame structure of the adjacent base station, the first serving base station determines that the first UE is a victim UE. Or,

[0045] If the first serving base station detects that the downlink data transmission of the first UE in the fixed time slot fails, and the first serving base station determines that the neighboring base station configures SBFD resources in the fixed time slot based on the SBFD configuration of the neighboring base station, and the SBFD resources are used for the uplink subband, then the first serving base station determines that the first UE is a victim UE.

[0046] In one example, the first serving base station obtains SRS configuration information, which may include but is not limited to:

[0047] The first serving base station sends an interference message to the controller, where the interference message includes the timeslot position of a fixed timeslot. The interference message is used to enable the controller to determine the interfering base station based on the frame structure of the multiple base stations, and the fixed timeslot of the interfering base station is an uplink timeslot or a flexible timeslot. Alternatively, the first serving base station sends an interference message to the controller, where the interference message is used to enable the controller to determine the interfering base station based on the SBFD configurations of the multiple base stations, and the interfering base station is configured with SBFD resources in the fixed timeslot, and the SBFD resources are used for uplink subbands.

[0048] The first serving base station receives SRS configuration information sent by the controller, where the SRS configuration information may include SRS resources allocated by the controller to the interfering UE under the interfering base station.

[0049] In one example, the first serving base station sending the SRS configuration information to the first UE may include, but is not limited to: the first serving base station obtaining capability information of the first UE and, if it is determined based on the capability information that the first UE has the capability of simultaneously receiving data and measuring SRS, sending the SRS configuration information to the first UE.

[0050] In one example, during the access process of the first UE, the first serving base station may also receive capability information sent by the first UE and store the capability information in a designated storage medium, wherein the capability information indicates whether the first UE has the function of simultaneously receiving data and measuring SRS.

[0051] In an example, the SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

[0052] In an example, a first UE receives an SRS signal sent by a second UE through SRS resources on the SRS resources used by the second UE, which may include: if the SRS configuration information also includes a CLI measurement identifier, and the CLI measurement identifier is used to indicate that the SRS resources are used for CLI measurement between UEs, then the first UE receives an SRS signal sent by the second UE through SRS resources on the SRS resources used by the second UE.

[0053] In one example, the SRS configuration information may include an SRS resource allocated by the controller to a second serving base station for a second UE. The SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource. Alternatively, the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource.

[0054] In an example, the first UE receives the SRS signal sent by the second UE through the SRS resource on the SRS resource used by the second UE, which may include but is not limited to: for each SRS resource indicated by the SRS configuration information, the first UE receives the SRS signal on the SRS resource.

[0055] In one example, if the base station is a second serving base station for a second UE, the second serving base station obtains SRS configuration information, where the SRS configuration information includes an SRS resource allocated by a controller to the second serving base station. The second serving base station obtains at least one candidate SRS resource corresponding to the second serving base station from the SRS configuration information. The second serving base station selects a target SRS resource from all candidate SRS resources and allocates the target SRS resource to the second UE, so that the second UE transmits an SRS signal on the target SRS resource.

[0056] In one example, the SRS resource can be a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource. If the SRS resource is a cell-level SRS resource, the target SRS resource is all candidate SRS resources, and the target SRS resource is allocated to all interfering UEs under the service cell managed by the second serving base station. Alternatively, if the SRS resource is a group-level SRS resource, the target SRS resource is all candidate SRS resources or some candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in the user group, and the user group includes at least one interfering UE. Alternatively, if the SRS resource is a UE-level SRS resource, the target SRS resource is at least one candidate SRS resource, and the target SRS resource is allocated to one interfering UE.

[0057] In one example, if the SRS resource is a cell-level SRS resource, when the first UE receives an SRS signal on the SRS resource, the SRS-RSRP determined by the first UE based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the serving cell. Alternatively, if the SRS resource is a group-level SRS resource, when the first UE receives an SRS signal on the SRS resource, the SRS-RSRP determined by the first UE based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the user group. Alternatively, if the SRS resource is a UE-level SRS resource, when the first UE receives an SRS signal on the SRS resource, the SRS-RSRP determined by the first UE based on the SRS signal is the RSRP value of the SRS signal of an interfering UE.

[0058] In one example, the first UE may send first uplink control information to the first serving base station, the first serving base station may receive the first uplink control information, and the first uplink control information may be used to carry the CLI measurement result. Alternatively, the first UE may send second uplink control information to the first serving base station, the first serving base station may receive the second uplink control information, and the second uplink control information may be used to carry both the CLI measurement result and uplink control information other than the CLI measurement result.

[0059] The CLI measurement result may include a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource;

[0060] The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

[0061] In one example, after receiving the first uplink control information or the second uplink control information, the first serving base station may also determine the base station identifier corresponding to each CLI identifier based on the mapping relationship between the CLI identifier and the base station identifier, and replace the CLI identifier in the CLI measurement result with the base station identifier. The first serving base station may also determine the SRS resource identifier corresponding to each SRS identifier based on the mapping relationship between the SRS identifier and the SRS resource identifier, and replace the SRS identifier in the CLI measurement result with the SRS resource identifier.

[0062] In an example, if the first UE is a victim UE with inter-subband interference, then: the first UE measures the interference signal received by the downlink subband of the SBFD resource, obtains the CLI-RSSI corresponding to the interference signal, and sends the CLI measurement result of the first UE to the first serving base station, which receives the CLI measurement result sent by the first UE. The CLI measurement result may include the CLI-RSSI.

[0063] The interference signal is an SRS signal sent by the third UE based on the SRS resource indicated by the SRS configuration information, or the interference signal is PUSCH (Physical Uplink Shared Channel UL) data sent by the third UE on the uplink subband resource. The third UE is an interfering UE that causes interference to the first UE, and the SRS resource is an SRS resource configured in the uplink subband of the SBFD resource.

[0064] In an example, if the first UE is a victim UE with both intra-subband interference and inter-subband interference, the first UE can send the CLI measurement result of the first UE to the first serving base station, and the first serving base station receives the CLI measurement result, which can include SRS-RSRP and CLI-RSSI.

[0065] In one example, if the SRS configuration information includes SRS resources corresponding to K second serving base stations, where K may be a positive integer, the CLI measurement result may include K intra-subband interference measurement fields and one inter-subband interference measurement field. The K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located after the K intra-subband interference measurement fields.

[0066] Among them, for the sub-band interference measurement field corresponding to each second service base station, the sub-band interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station.

[0067] The inter-subband interference measurement field may include CLI-RSSI.

[0068] In one example, the first UE sending the CLI measurement result of the first UE to the first serving base station may include: the first UE receiving a CSI measurement configuration sent by the first serving base station. If the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting of SRS-RSRP, or SRS-RSRP and CLI-RSSI, the first UE sending the CLI measurement result of the first UE to the first serving base station.

[0069] In one example, after a first UE receives an SRS signal on an SRS resource used by a second UE, the first UE prohibits receiving PDSCH data in the time slot where the SRS resource is located. Alternatively, the first UE performs rate matching on the PDSCH data in the time slot where the SRS resource is located.

[0070] As can be seen from the above technical solutions, in F-TDD or SBFD systems, CLI between UEs can affect overall system performance. By obtaining UE CLI measurement results, inter-UE collaborative scheduling can be implemented based on these CLI measurement results, reducing CLI between UEs and improving data transmission performance.

[0071] The above technical solution of the present application is described below with reference to examples.

[0072] TDD systems can operate in HD mode, meaning that at the same time, the same frequency domain resources can only be used for UL or DL. To make more flexible use of frequency domain resources and improve resource utilization, TDD systems can also operate in FD (Full-Duplex) mode. At the same time, the same frequency domain resources are used for both UL and DL, that is, uplink and downlink data are processed simultaneously on the same frequency domain resources.

[0073] In a TDD system, the frame structure is divided into DL time slots, UL time slots, and flexible time slots. Once the frame structure is determined, the UE can transmit and receive data according to the frame structure. For UEs using HD (Half Duplex) mode, the base station (such as a gNB) schedules the UE to transmit or receive according to the frame structure. For UEs using FD mode, the base station schedules the UE to transmit, receive, or both according to the frame structure. In summary, the base station can configure the frame structure and notify the UE of the frame structure so that the UE understands the frame structure and can correctly transmit and receive data. Furthermore, knowing the frame structure allows the UE to be aware of potential inter-UE interference and use interference cancellation techniques to mitigate interference and improve communication reliability.

[0074] In the TDD system, the frame structure is divided into UL time slots, DL time slots and flexible time slots (F time slots) according to time slots. The symbols in the flexible time slots can be configured as UL symbols, DL symbols and F symbols. The F symbols can be used for UL, DL or GP. Among them, uplink data can be transmitted in the UL time slot, UL symbols or F symbols in the flexible time slots. Uplink data cannot be transmitted in the DL time slots or DL ​​symbols in the flexible time slots. Downlink data can be transmitted in the DL time slots, DL symbols or F symbols in the flexible time slots. Downlink data cannot be transmitted in the UL time slots or UL symbols in the flexible time slots.

[0075] In TDD systems, for frames primarily used for uplink transmission, more UL time slots are typically configured, resulting in fewer DL time slots. This limits the downlink transmission rate and increases the transmission latency of downlink data, leading to increased downlink transmission latency and unavailability of downlink services. For frames primarily used for downlink transmission, more DL time slots are typically configured, resulting in fewer UL time slots. This limits the uplink transmission rate and increases the transmission latency of uplink data, leading to increased uplink transmission latency and unavailability of uplink services.

[0076] The above problems can be solved by F-TDD, also known as dynamic TDD, which can flexibly allocate UL time slots and DL time slots to meet the needs of dynamically changing services and improve the performance of the communication system.

[0077] SBFD can also address these issues. SBFD subband resources (frequency domain resources) can be configured within a Bandwidth Part (BWP). SBFD subband resources include both uplink and downlink subband resources. This allows data to be transmitted simultaneously on SBFD subband resources in different directions than on other frequency domain resources. This improves uplink data rates and reduces air interface latency.

[0078] For example, SBFD subband resources can be configured within the BWP of a DL timeslot, and uplink data can be transmitted using the SBFD subband resources, allowing uplink data to be transmitted within the DL timeslot. Alternatively, SBFD subband resources can be configured within the BWP of a DL symbol in a flexible timeslot, and uplink data can be transmitted using the SBFD subband resources, allowing uplink data to be transmitted within the DL symbols of the flexible timeslot. Obviously, transmitting uplink data within downlink timeslots or flexible timeslots can increase the uplink transmission rate and reduce the transmission latency of uplink data.

[0079] For example, SBFD subband resources can be configured within the BWP of a UL timeslot, and downlink data can be transmitted using the SBFD subband resources, allowing downlink data to be transmitted within the UL timeslot. Alternatively, SBFD subband resources can be configured within the BWP of a UL symbol in a flexible timeslot, and downlink data can be transmitted using the SBFD subband resources, allowing downlink data to be transmitted within the UL symbols of the flexible timeslot. Clearly, transmitting downlink data within uplink timeslots or flexible timeslots can increase the downlink transmission rate and reduce downlink data transmission latency.

[0080] Whether using F-TDD or SBFD, inter-UE interference exists. Figure 2 shows a schematic diagram of the F-TDD network structure. The frame structure of the macro base station (gNB0) is DDDSU, while the frame structure of the micro base station (gNB1) is DSUUU. Clearly, in timeslot #2, gNB0 is in the downlink timeslot (D-slot) and gNB1 is in the uplink timeslot (U-slot), indicating that gNB0 and gNB1 have different transmission directions.

[0081] In timeslot #2, gNB0 transmits DL data to UE0, and gNB1 receives UL data from UE1. In this case, gNB0's DL data transmission interferes with gNB1's UL data reception, resulting in gNB-gNB CLI. UE1's UL data transmission interferes with UE0's DL data reception, resulting in UE-UE CLI. These two types of interference are co-channel interference, which also occurs in SBFD systems.

[0082] For ease of description, base stations serving victim UEs and interfering UEs are collectively referred to as serving base stations, UEs interfering with other UEs are referred to as interfering (Aggressor) UEs, and UEs being interfered with are referred to as victim UEs. The interfered base station or the base station serving the victim UE is referred to as the victim base station, while the base station that interferes with the victim base station or the base station serving the interfering UE is referred to as the interfering base station. Victim UEs and interfering UEs may coexist under the same serving base station. From the perspective of the UE, the serving base station may be both a victim base station and an interfering base station. The subject of interference and victimization is not the base station, but the UE served by the base station.

[0083] Both gNB-to-gNB CLI and UE-to-UE CLI will affect the reception of the base station and UE, reducing the received signal-to-noise ratio and increasing the bit error rate, ultimately affecting the overall performance of the TDD system.

[0084] For UE-UE CLI, this application proposes a CLI measurement method. By measuring the UE-UE CLI and obtaining the UE-UE CLI measurement results, collaborative scheduling between UEs can be achieved based on the CLI measurement results, thereby reducing the CLI between UEs, improving data transmission performance, and improving the overall performance of the TDD system.

[0085] In an example, for intra-frequency CLI, UE-UE CLI includes intra-subband CLI and inter-subband CLI. Intra-subband CLI exists in the F-TDD system and the SBFD system, and inter-subband CLI exists in the SBFD system.

[0086] In an example, for the CLI measurement method, the following process may be involved:

[0087] First, the interaction between frame structure configuration and SBFD configuration between base stations.

[0088] Whether measuring the CLI within a subband or measuring the CLI between subbands, configuration information needs to be exchanged between base stations. The configuration information may include frame structure configuration information and SBFD configuration information.

[0089] When each base station sends configuration information to other base stations, the configuration information may include the base station identifier (ID) of the base station, that is, the base station identifier indicates that the configuration information belongs to the base station. The base station identifier may be a unique identifier of the base station, such as a Physical Cell ID.

[0090] For the F-TDD system and the SBFD system, the frame structure configuration information can be exchanged. The frame structure configuration information includes reference subcarrier spacing, frame structure period, uplink and downlink time slots, flexible time slots and other configuration information.

[0091] Since the configuration of the frame structure is completed by TDD-UL-DL-ConfigCommon (common configuration for uplink and downlink), TDD-UL-DL-ConfigDedicated (dedicated configuration for uplink and downlink), and the time slot format indication, and the latter two can only change the flexible symbols in TDD-UL-DL-ConfigCommon. Therefore, based on TDD-UL-DL-ConfigCommon, the base station can consider the type of flexible symbols that have been changed, obtain the configuration information of the effective frame structure, and then exchange it with other base stations.

[0092] The configuration information of the frame structure may include the subcarrier spacing (SCS) used by the frame structure and two frame structure patterns. Each pattern includes the frame structure period, DL time slot, DL symbol, UL time slot and UL symbol in the pattern. The detailed parameters of the configuration information of the frame structure are shown in Table 1.

[0093] For the SBFD system, in addition to exchanging frame structure configuration information, SBFD configuration information, such as subband time domain configuration information and frequency domain configuration information, can also be exchanged.

[0094] The subband may be configured as a DL subband, a UL subband, or a flexible subband. The three may be configured at the same time, or only one or two of them may be configured.

[0095] In the time domain, the time location of each subband is determined by two parameters: the subband's start symbol and the symbol length occupied by the subband. The start symbol is counted from the first symbol of each frame structure pattern, and the symbol length is the number of symbols occupied from the start symbol. Furthermore, any two different types of SBFD should not overlap in symbols. If overlap occurs, it is considered a misconfiguration.

[0096] In the frequency domain, the frequency location of each subband is determined by two parameters: the subband's starting PRB (Physical Resource Block) number and the number of PRBs occupied by the subband. The starting PRB is counted from the first PRB in the BWP, and the number of PRBs occupied by the subband is the number of PRBs starting from the starting PRB.

[0097] In the same symbol, if some PRBs are configured as UL subbands (or DL ​​subbands), the remaining PRBs default to DL subbands (or UL subbands) and guardbands. A guardband exists between two different Ssubbands by default. The guardband size can be selected from several fixed values, such as {1, 2, 3, 4, 5, 6, 7, 8}.

[0098] If a subband is configured as Flexible, the remaining PRBs in the same symbol are used for the same purpose as that symbol is configured in the frame structure. For example, if the symbol is configured as a DL symbol, the remaining PRBs are used for downlink. If the flexible subband is actually used in a different transmission direction than the remaining PRBs, the default guard bandwidth can be located in the flexible subband.

[0099] In an example, detailed parameters of SBFD configuration information are shown in Table 1.

[0100] Table 1

[0101] In one example, the exchange of frame structure configuration information and SBFD configuration information between base stations can be accomplished via the Xn or F2 interface or the air interface. To facilitate information exchange, a controller can implement information exchange between base stations. For example, each base station sends its frame structure configuration information and SBFD configuration information to the controller, and the controller sends each base station's frame structure configuration information and SBFD configuration information to other base stations.

[0102] In an example, the controller may be a base station, or a CU unit that controls different DUs in the system, or other control units for uniformly controlling each base station, without limitation.

[0103] Second, the UE-UE CLI measurement process: For F-TDD and SBFD systems, there is intra-subband CLI measurement, and for SBFD systems, there is inter-subband CLI measurement.

[0104] For F-TDD and SBFD systems, see Figure 3A, which illustrates inter-UE intra-subband CLI measurement and reporting. gNB0 is a macro base station with a large coverage area, used for large-area coverage. gNB1 is a micro base station with a smaller coverage area, used for indoor blind spots. When UE1 within gNB1 transmits uplink signals, it generates CLI for the downlink reception of UE0 within gNB0. UE1 is an interfering UE, gNB1 is the interfering base station, and UE0 is the victim UE, with gNB0 being the victim base station.

[0105] The victim UE is referred to as the first UE, the victim UE's serving base station is referred to as the first serving base station, the interfering UE is referred to as the second UE, and the interfering UE's serving base station is referred to as the second serving base station. For this purpose, the first UE is UE0, the first serving base station is gNB0, the second UE is UE1, and the second serving base station is gNB1.

[0106] 3A , the intra-subband CLI measurement and reporting process between UEs may include the following steps:

[0107] Step 0: After determining that the first UE is a victim UE, the first serving base station sends an interference message to the controller.

[0108] In an example, if the first service base station detects that the downlink data transmission of the first UE in a fixed time slot (one or more fixed time slots) fails, and the first service base station determines that the adjacent base station is an uplink time slot or a flexible time slot based on the frame structure of the adjacent base station (the configuration information of the frame structure has been exchanged between the base stations, and the frame structure of the adjacent base station can be known), then the first service base station determines that the first UE is a victim UE.

[0109] For example, if the first serving base station detects through HARQ NACK that the first UE fails to transmit downlink data in a fixed time slot, and the number of downlink data transmission failures reaches a preset threshold (such as 3 or 5), the first serving base station determines, based on the frame structure of the neighboring base station, whether the fixed time slot of the neighboring base station (one or more) is an uplink time slot or a flexible time slot. If so, the first serving base station determines that the first UE is a victim UE, that is, the first UE is subject to cross-link interference from a second UE in the neighboring base station.

[0110] For example, for a certain time slot, if the first service base station performs downlink scheduling in the time slot and the second service base station performs uplink scheduling in the time slot, then when the first service base station schedules the first UE to perform downlink data transmission in the time slot, it may be interfered with by the uplink transmission of the second UE in the second service base station.

[0111] Based on this, the first serving base station detects that the downlink data transmission of the first UE in the time slot fails, and determines that the second serving base station uses the time slot as an uplink time slot based on the frame structure of the second serving base station.

[0112] In an example, if the first serving base station detects that the downlink data transmission of the first UE in a fixed time slot fails, and the first serving base station determines that the adjacent base station configures SBFD resources in the fixed time slot based on the SBFD configuration of the adjacent base station (the base stations have exchanged SBFD configuration information and can obtain the SBFD configuration), and the SBFD resources are used for the uplink subband, then the first serving base station determines that the first UE is a victim UE.

[0113] For example, if the first serving base station detects, through HARQ NACK, that the first UE's downlink data transmission fails in a fixed time slot, and the number of downlink data transmission failures reaches a preset threshold, the first serving base station determines, based on the neighboring base station's SBFD configuration, whether the neighboring base station has SBFD resources configured in the fixed time slot, and whether the SBFD resources are used for uplink subbands. If so, the first serving base station determines that the first UE is a victim UE, meaning that the first UE is experiencing cross-link interference from a second UE in the neighboring base station.

[0114] For example, for a certain time slot, the first serving base station configures some PRBs in the time slot as downlink subbands, while the second serving base station configures some PRBs as uplink subbands. Then, when the first serving base station schedules the first UE for downlink data transmission using these PRBs, it may be interfered with by the uplink transmission of the second UE in the second serving base station. Based on this, the first serving base station detects that the first UE's downlink data transmission in the time slot has failed, and determines, based on the SBFD configuration of the second serving base station, whether the second serving base station should configure SBFD resources for the time slot, and whether the SBFD resources are used for the uplink subband.

[0115] In one example, after the first service base station determines that the first UE is a victim UE, it can also send an interference message to the controller. The interference message includes the time slot position of the fixed time slot and the base station identifier of the first service base station, and the interference message is used to indicate that the UE in the first service base station is interfered with by the UE in the adjacent base station.

[0116] Step 1: After receiving the interference message, the controller determines the interfering base station (the interfering base station is called the second serving base station, and there can be one or more second serving base stations), obtains SRS configuration information, and sends the SRS configuration information to the first serving base station and the second serving base station.

[0117] In one example, the controller can determine the interfering base station of the first serving base station based on the frame structure of multiple base stations (each base station will send the configuration information of the frame structure to the controller, that is, the controller can obtain the frame structure of each base station), and the interfering base station is an uplink time slot or a flexible time slot in the fixed time slot.

[0118] For example, the controller can obtain the time slot position of the fixed time slot from the interference message, indicating that there is interference in the fixed time slot of the first serving base station. If a neighboring base station of the first serving base station is an uplink time slot or a flexible time slot in the fixed time slot (based on the frame structure of the neighboring base station), the controller regards the neighboring base station as an interfering base station of the first serving base station, that is, the neighboring base station serves as the second serving base station.

[0119] In one example, the controller determines the interfering base station of the first serving base station based on the SBFD configurations of multiple base stations (each base station sends SBFD configuration information to the controller, and the controller obtains the SBFD configuration of each base station). The interfering base station configures SBFD resources in a fixed time slot, and the SBFD resources are used for the uplink subband.

[0120] For example, the controller can obtain the time slot position of the fixed time slot from the interference message. If a neighboring base station of the first serving base station configures SBFD resources in the fixed time slot, and the SBFD resources are used for the uplink subband (based on the SBFD configuration of the neighboring base station), the controller treats the neighboring base station as an interfering base station of the first serving base station, that is, the neighboring base station serves as the second serving base station.

[0121] In one example, the controller determines multiple neighboring base stations of the first serving base station based on the networking situation and the physical location of each base station, and then determines whether each neighboring base station is an interfering base station of the first serving base station.

[0122] In one example, after the controller determines the interfering base station, it allocates SRS (Sounding Reference Signal) resources to the interfering UE under the interfering base station, that is, allocates SRS resources to the second UE under the second serving base station. The SRS resources are SRS resources in the target time slot in which the second UE transmits uplink data and the first UE receives downlink data.

[0123] For example, the controller may select a time slot that meets the above characteristics from all time slots as a target time slot, and allocate SRS resources in the target time slot to the interfering UE under the interfering base station.

[0124] Of course, the above is only an example of allocating SRS resources, and there is no limitation on the allocation method of the SRS resources.

[0125] In an example, after obtaining the SRS resources, the controller may send SRS configuration information to the first serving base station and send the SRS configuration information to the second serving base station.

[0126] The SRS configuration information may include the SRS resources allocated by the controller to the second UE under the second serving base station, that is, the SRS configuration information may include the SRS resources used by the second UE.

[0127] Step 2: After receiving the SRS configuration information, the first serving base station sends the SRS configuration information to the first UE, and the first UE receives the SRS configuration information. After receiving the SRS configuration information, the second serving base station sends the SRS configuration information to the second UE, and the second UE receives the SRS configuration information.

[0128] In one example, to implement CLI measurement, the UE needs to measure the SRS signal while receiving downlink data. If the UE supports this function, an additional UE capability needs to be introduced, such as the SimultaneousPDSCHandSRSmeasurement capability. During the access process, the UE needs to report this capability to the base station. The base station will only send SRS configuration information for CLI measurement to UEs that support this capability.

[0129] Based on this, during the access process of the first UE, if the first UE has the function of simultaneously receiving data and measuring SRS, the first UE sends the capability information of the first UE to the first serving base station. The capability information may be "SimultaneousPDSCHandSRSmeasurement". The first serving base station may receive the capability information of the first UE and store the capability information in a designated storage medium. The capability information is used to indicate whether the first UE has the function of simultaneously receiving data and measuring SRS.

[0130] For example, if the capability information is SimultaneousPDSCHandSRSmeasurement, it means that the first UE has the function of simultaneously receiving data and performing SRS measurement.

[0131] After receiving the SRS configuration information, if the SRS configuration information is used for CLI measurement, the first serving base station obtains the capability information of the first UE from a designated storage medium. If the first serving base station determines, based on the capability information, that the first UE has the capability of simultaneously receiving data and performing SRS measurement, the first serving base station sends the SRS configuration information to the first UE. Otherwise, if the designated storage medium does not store the capability information of the first UE, or if, based on the capability information, the first serving base station determines that the first UE does not have the capability of simultaneously receiving data and performing SRS measurement, the first serving base station prohibits sending the SRS configuration information to the first UE.

[0132] When the SRS configuration information is used for CLI measurement, the SRS configuration information may further include a CLI measurement identifier, and the CLI measurement identifier is used to indicate that the SRS resource is used for CLI measurement between UEs. Based on this, when the first serving base station determines that the SRS configuration information includes the CLI measurement identifier, it determines that the SRS configuration information is used for CLI measurement and sends the SRS configuration information to the first UE.

[0133] Step 3: After the second UE receives the SRS configuration information, which includes the SRS resources allocated by the controller to the second UE, the second UE sends an SRS signal on the SRS resources.

[0134] Step 4. After the first UE receives the SRS configuration information, which includes the SRS resources used by the second UE, the first UE receives the SRS signal sent by the second UE through the SRS resources used by the second UE. The SRS signal can be used to obtain the SRS-RSRP (Reference Signal Received Power) corresponding to the SRS resource.

[0135] In an example, after receiving SRS configuration information, if the SRS configuration information includes a CLI measurement flag, and the CLI measurement flag is used to indicate that the SRS resource is used for CLI measurement between UEs, the first UE receives an SRS signal sent by the second UE through the SRS resource.

[0136] When the first UE receives the SRS signal on the SRS resource, it may measure the received power of the SRS signal to obtain the RSRP corresponding to the SRS resource, and record the RSRP as SRS-RSRP.

[0137] Step 5: The first UE sends a CLI measurement result of the first UE to the first serving base station. The first serving base station receives the CLI measurement result, which may include the SRS-RSRP.

[0138] Step 6: The first serving base station reports the CLI measurement result to the controller.

[0139] In an example, if the first serving base station receives a CLI measurement result of a first UE (ie, there is only one victim UE), the CLI measurement result of the first UE is reported to the controller.

[0140] If the first serving base station receives CLI measurement results of multiple first UEs (ie, there are multiple victim UEs), the CLI measurement results of the multiple first UEs are aggregated and reported to the controller.

[0141] Step 7: The controller performs collaborative scheduling based on the CLI measurement result reported by the first serving base station.

[0142] In one example, if the controller receives a single primary serving base station (i.e., there is only one victim serving base station), collaborative scheduling is performed based on the CLI measurement results of the primary serving base station, with no restrictions on this scheduling process. If the controller receives multiple primary serving base stations (i.e., there are multiple victim serving base stations), collaborative scheduling is performed based on the CLI measurement results of the multiple primary serving base stations, with no restrictions on this scheduling process. Collaborative scheduling can reduce interference between UEs and improve data transmission performance.

[0143] For an SBFD system, see Figure 3B, which illustrates inter-UE and inter-subband CLI measurement and reporting. When UE1 transmits an uplink signal, it generates CLI for UE0's downlink reception. UE1 is the interfering UE, and its serving base station is the interfering base station. UE0 is the victim UE, and its serving base station is the victim base station. The victim UE can be referred to as the first UE, the serving base station of the victim UE as the first serving base station, the interfering UE as the third UE, and the serving base station of the interfering UE as the third serving base station.

[0144] 3B , the inter-UE and inter-subband CLI measurement and reporting process may include the following steps:

[0145] Step 0: The third serving base station sends SRS configuration information to the third UE. The SRS configuration information includes SRS resources allocated by the third serving base station to the third UE. The SRS resources are SRS resources configured for the uplink subband of the SBFD resources, that is, the SRS signal used for inter-subband CLI measurement is configured in the UL subband. The DL subband of the first UE and the UL subband of the third UE are not in the same frequency domain resource location.

[0146] Step 1: After the third UE receives the SRS configuration information, which includes the SRS resources allocated by the third serving base station to the third UE, the third UE can send SRS signals on the SRS resources, or the third UE can send PUSCH data on the uplink subband (UL Subband) resources.

[0147] Step 2: The first UE measures the interference signal received on the downlink subband of the SBFD resource to obtain a CLI-RSSI (Received Signal Strength Indicator) corresponding to the interference signal.

[0148] In one example, the interference signal, also called a measurement signal, is an SRS signal sent by a third UE on an SRS resource, or PUSCH data sent by the third UE in an uplink subband resource. The first UE measures the RSSI of all interference signals in the downlink subband of the SBFD resource, obtains the RSSI corresponding to the interference signal, and records the RSSI as CLI-RSSI.

[0149] Step 3: The first UE sends a CLI measurement result of the first UE to the first serving base station. The first serving base station receives the CLI measurement result, which may include the CLI-RSSI.

[0150] Step 4: The first serving base station performs coordinated scheduling based on the CLI measurement result. For example, the first serving base station coordinates scheduling of each UE in the base station based on the CLI-RSSI reported by the first UE.

[0151] Third, UE-UE CLI measurement signal.

[0152] In one example, for CLI measurement between UEs, an SRS signal can be used as a CLI measurement signal, that is, the second UE sends an SRS signal on an SRS resource, and the first UE obtains the inter-UE CLI value by measuring the RSRP value of the SRS signal on the SRS resource, thereby obtaining a CLI measurement result.

[0153] In the case of a large number of base stations, the SRS resources (ie, time-frequency resources) may be uniformly coordinated and configured through a controller. Referring to the above step 1, the controller allocates SRS resources to the second UE under the second serving base station.

[0154] In one example, when the controller allocates an SRS resource to a second UE under a second serving base station, the SRS resource is uniquely identified by the base station identifier of the second serving base station and the SRS resource identifier of the SRS resource. Alternatively, the SRS resource is uniquely identified by the base station identifier of the second serving base station, the SRS resource set identifier of the SRS resource set to which the SRS resource belongs, and the SRS resource identifier of the SRS resource.

[0155] Among them, since the controller can manage multiple base stations, in order to distinguish SRS resources under different base stations, the controller needs to distinguish different base station identifiers for SRS resources when allocating SRS resources. The base station identifier can be a Physical Cell ID or other type of identifier that can uniquely identify the base station.

[0156] In scenarios where an SRS resource set exists, the SRS resource set is uniquely identified by the SRS resource set identifier. While each SRS resource set is used for beam management, antenna switching, codebook transmission, non-codebook transmission, and positioning, the functionality of the SRS resource set can be expanded to support inter-UE CLI measurements.

[0157] For example, you need to configure a new feature for the SRS resource set: CLI measurement, so that the SRS resource set supports CLI measurement. For example, in the configuration parameters of the SRS resource set, configure the following: usage ENUMERATED {beamManagement, codebook, nonCodebook, antennaSwitching, CLI measurement}, which indicates that the SRS resource set supports CLI measurement.

[0158] The above configuration parameter of the SRS resource set may be a CLI measurement identifier, and the CLI measurement identifier is used to indicate that each SRS resource in the SRS resource set is used for CLI measurement between UEs.

[0159] In scenarios where SRS resource sets exist, each base station can correspond to at least one SRS resource set, and each SRS resource set can include at least one SRS resource, which is uniquely identified by an SRS resource identifier. The configuration of SRS resources includes transmission configuration, time-frequency domain resources, and frequency hopping configuration.

[0160] In scenarios where no SRS resource set exists, each base station can correspond to at least one SRS resource, and the SRS resource is uniquely identified by the SRS resource identifier. The configuration of SRS resources includes transmission configuration, time-frequency domain resources, frequency hopping configuration, etc. The functions of SRS resources can be expanded to support CLI measurement between UEs. For example, a new function needs to be additionally configured for SRS resources: CLI measurement, so that the SRS resources support the CLI measurement function. For example, the following configuration is configured in the SRS resource configuration parameters: usage ENUMERATED {beamManagement, codebook, nonCodebook, antennaSwitching, CLI measurement}, which indicates that the SRS resource supports the CLI measurement function.

[0161] For a scenario where there is no SRS resource set, the above configuration parameter of the SRS resource may be a CLI measurement identifier, where the CLI measurement identifier is used to indicate that the SRS resource is used for CLI measurement between UEs.

[0162] In an example, for a scenario where an SRS resource set exists, each SRS resource set used for CLI measurement (e.g., multiple SRS resources within an SRS resource set) can be configured as periodic, aperiodic, and semi-persistent. Aperiodic SRS resource sets can be triggered via DCI (Downlink Control Information). Semi-persistent SRS resource sets can be triggered via MAC CE.

[0163] For scenarios where no SRS resource set exists, each SRS resource used for CLI measurement can be configured as periodic, aperiodic, or semi-persistent. Aperiodic SRS resources can be triggered via DCI, while semi-persistent SRS resources can be triggered via MAC CE.

[0164] In an example, for a scenario where an SRS resource set exists, each SRS resource set used for CLI measurement (such as multiple SRS resources in an SRS resource set) is configured as Cell-Specific, Group-Common, or UE-Specific. For example, each SRS resource in an SRS resource set can be a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource. To support the above functions, a new configuration parameter can be introduced into the SRS resource set, and the configuration parameter can be such as srsResourceSetType ENUMERATED{Cell-specific, Group-Common, UE-Specific}. Obviously, if the configuration parameter is Cell-specific, it indicates a cell-level SRS resource. If the configuration parameter is Group-Common, it indicates a group-level SRS resource. If the configuration parameter is UE-Specific, it indicates a UE-level SRS resource.

[0165] For scenarios where no SRS resource set exists, each SRS resource used for CLI measurement can be configured as Cell-Specific, Group-Common, or UE-Specific. For example, each SRS resource can be a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource.

[0166] In one example, for step 2 above, after the second serving base station obtains the SRS configuration information, the second serving base station may send the SRS configuration information to the second UE in the following manner:

[0167] The second service base station obtains at least one candidate SRS resource corresponding to the second service base station from the SRS configuration information. For example, since the SRS configuration information may include SRS resources corresponding to multiple base stations, and the SRS resources can be uniquely identified by the base station identifier and the SRS resource identifier, the second service base station obtains the SRS resources (at least one) corresponding to the base station identifier of the second service base station from the SRS configuration information, and uses these SRS resources as candidate SRS resources. Alternatively, since the SRS resources can be uniquely identified by the base station identifier, the SRS resource set identifier, and the SRS resource identifier, the second service base station obtains the SRS resource set (at least one) corresponding to the base station identifier of the second service base station from the SRS configuration information, and uses all SRS resources (at least one) in each SRS resource set as candidate SRS resources.

[0168] The second serving base station selects a target SRS resource from all candidate SRS resources, and allocates the target SRS resource to the second UE, so that the second UE sends an SRS signal on the target SRS resource.

[0169] For example, if the SRS resource is a cell-level SRS resource, the target SRS resource is all candidate SRS resources, and the target SRS resources are allocated to all interfering UEs (i.e., second UEs) in the service cell managed by the second serving base station. That is, for the cell-level SRS resources configured for the second serving base station, the second serving base station uses all candidate SRS resources as target SRS resources and allocates the target SRS resources to all interfering UEs within the service range. For each interfering UE, after receiving SRS configuration information that includes the target SRS resource, the interfering UE sends an SRS signal on the target SRS resource.

[0170] For example, if the SRS resource is a group-level SRS resource, the target SRS resource may be all candidate SRS resources or part of the candidate SRS resources, and the target SRS resource is allocated to all interfering UEs (ie, second UEs) in the user group, and the user group may include at least one interfering UE.

[0171] The second serving base station may divide all interfering UEs within the service range into at least one user group. For each user group, the second serving base station may allocate all or part of the candidate SRS resources to the user group, without any restriction on the allocation method. The second serving base station may use the candidate SRS resources allocated to the user group as the target SRS resources for the user group, and allocate the target SRS resources to all interfering UEs in the user group. Obviously, for the group-level SRS resources configured for the second serving base station, the target SRS resources apply to all interfering UEs in the user group.

[0172] For each interfering UE, after receiving SRS configuration information including a target SRS resource, the interfering UE sends an SRS signal on the target SRS resource.

[0173] For example, if the SRS resource is a UE-level SRS resource, the target SRS resource may be at least one candidate SRS resource, and the target SRS resource is allocated to an interfering UE (ie, the second UE).

[0174] For the UE-level SRS resources configured to the second serving base station, the UE-level SRS resources are only valid for one interfering UE, that is, the UE-level SRS resources are allocated to one interfering UE. The second serving base station can allocate target SRS resources to each interfering UE based on the number of candidate SRS resources and the number of interfering UEs.

[0175] If the number of candidate SRS resources is equal to the number of interfering UEs, the second serving base station allocates one candidate SRS resource to each interfering UE, that is, the candidate SRS resources correspond to the interfering UEs one-to-one. The candidate SRS resources corresponding to the interfering UEs can be used as the target SRS resources of the interfering UEs.

[0176] If the number of candidate SRS resources is greater than the number of interfering UEs, the second serving base station allocates at least one candidate SRS resource to each interfering UE. That is, each interfering UE may correspond to at least one candidate SRS resource, and different interfering UEs may correspond to different candidate SRS resources. For example, interfering UE1 may correspond to candidate SRS resource 1 and candidate SRS resource 2, and interfering UE2 may correspond to candidate SRS resource 3. The candidate SRS resource corresponding to the interfering UE may be used as the target SRS resource for the interfering UE.

[0177] If the number of candidate SRS resources is less than the number of interfering UEs, the second serving base station allocates candidate SRS resources based on priority, or allocates candidate SRS resources using a round-robin approach. For example, if the priority order of the interfering UEs is UE3, UE1, and UE2, then UE3 corresponds to candidate SRS resource 1, and UE1 corresponds to candidate SRS resource 2. For another example, based on a round-robin approach, UE1 corresponds to candidate SRS resource 1, and UE2 corresponds to candidate SRS resource 2. The candidate SRS resource corresponding to the interfering UE can be used as the target SRS resource for the interfering UE.

[0178] In an example, for the above step 4, after the first UE receives the SRS configuration information, since the SRS configuration information includes multiple SRS resources (i.e., SRS resources used by multiple second UEs), for each SRS resource indicated by the SRS configuration information, the first UE receives an SRS signal on the SRS resource, and the SRS signal can be used to obtain the SRS-RSRP corresponding to the SRS resource.

[0179] For example, if the SRS resource is a cell-level SRS resource, for each SRS resource, all interfering UEs in the serving cell managed by the second serving base station will transmit an SRS signal on the SRS resource. That is, when the first UE receives an SRS signal on the SRS resource, the SRS signal is the accumulated SRS signal of all interfering UEs in the serving cell. When the first UE determines the SRS-RSRP based on the SRS signal on the SRS resource, the SRS-RSRP is the accumulated RSRP value of the SRS signals of all interfering UEs in the serving cell.

[0180] For inter-UE CLI measurement, a victim UE may be interfered with by multiple interfering UEs in multiple interfering base stations. In order to distinguish the CLI interference from a certain interfering UE in a certain interfering base station, for cell-level SRS resources, the SRS time-frequency resource positions under different interfering base stations can be configured to be different.

[0181] For example, if the SRS resource is a group-level SRS resource, all interfering UEs in the user group will transmit an SRS signal on each SRS resource. That is, when the first UE receives an SRS signal on the SRS resource, the SRS signal is the cumulative SRS signal of all interfering UEs in the user group. When the first UE determines the SRS-RSRP based on the SRS signal on the SRS resource, the SRS-RSRP is the cumulative RSRP value of the SRS signals of all interfering UEs in the user group.

[0182] For different user groups under the same interfering base station, the SRS time-frequency resource positions of different user groups can be configured differently. For user groups under different interfering base stations (ie, different user groups), the SRS time-frequency resource positions of user groups under different interfering base stations can be configured differently.

[0183] For example, if the SRS resource is a UE-level SRS resource, for each SRS resource, only one interfering UE transmits an SRS signal on the SRS resource. That is, when the first UE receives an SRS signal on the SRS resource, the SRS signal is the SRS signal of the interfering UE. When the first UE determines the SRS-RSRP based on the SRS signal on the SRS resource, the SRS-RSRP is the RSRP value of the SRS signal of the interfering UE.

[0184] For UE-level SRS resources, for different interfering UEs under the same interfering base station, different time-frequency resource locations can be configured for the SRS of each interfering UE. For different interfering UEs under different interfering base stations, different time-frequency resource locations can be configured for the SRS of different interfering UEs under different interfering base stations.

[0185] In one example, for step 1 above, the controller determines which interfering base stations cause CLI interference to the victim UE of the victim base station based on the physical location, frame structure configuration, and SBFD configuration of each base station, and sends the corresponding SRS configuration information to each base station. The process of sending the SRS configuration information to the base station is as follows:

[0186] Base stations physically adjacent to the victim base station may have interfering UEs, generating CLI interference to the victim UEs in the victim base station. If the victim base station uses all frequency domain resources or frequency domain sub-band resources at a certain time (time slot or symbol) for DL ​​data transmission, while other interfering base stations use UL data transmission, UEs in the adjacent base stations may experience CLI interference.

[0187] Based on the above principles, the controller identifies base stations that may cause inter-UE CLI interference, configures corresponding SRS resources for each base station, and sends the SRS configuration information to each base station. That is, each interfering base station has its own SRS resource configuration, as well as the SRS resource configuration of the neighboring base station, to coordinate UE CLI measurements. The controller can determine whether the SRS resource is Cell-Specific, Group-Common, or UE-Specific. For Group-Common or UE-Specific, the controller does not specify which UEs the serving base station configures these SRS resources for. The serving base station decides which UEs to configure these SRS resources for.

[0188] In one example, a base station determines whether the SRS resource is the SRS resource of the UE it serves or the SRS resource of the UE served by another base station based on the base station identifier in the SRS configuration information. For the SRS resources of the UE served by another base station, the base station determines the UEs that are interfered with by the CLI and sends the SRS configuration information to these UEs. The SRS configuration of the other base stations configured for the UE needs to include the SRS configuration identifier and the SRS configuration information of the other base stations. The detailed format is as follows:

[0189] Fourth, UE-UE CLI measurement result reporting.

[0190] In one example, after receiving SRS configuration information, the interfering UE transmits an SRS signal on the corresponding SRS resource. After receiving the SRS configuration information, the victim UE receives the SRS signal on the corresponding SRS resource, measures the SRS signal, and obtains SRS-RSRP as the CLI measurement result.

[0191] In an example, for cell-level SRS resources, all interfering UEs will transmit SRS signals on the same SRS resources, and the victim UE will receive the SRS signals of all interfering UEs on the SRS resources. The resulting SRS-RSRP is the sum of the SRS signal strengths of all interfering UEs served by the interfering base station. For group-level SRS resources, a group of interfering UEs will transmit SRS signals on the same SRS resources, and the victim UE will receive the SRS signals of a group of interfering UEs on the SRS resources. The resulting SRS-RSRP is the sum of the SRS signal strengths of the group of interfering UEs served by the interfering base station. For UE-level SRS resources, interfering UEs will transmit SRS signals on the SRS resources, and the victim UE will receive the SRS signals of interfering UEs on the SRS resources. The resulting SRS-RSRP is the SRS signal strength of one interfering UE served by the interfering base station.

[0192] In one example, for inter-subband CLI measurement, the victim UE only needs to measure the RSSI of all interference signals as a CLI measurement result, and the CLI measurement result may include CLI-RSSI.

[0193] In an example, the CLI measurement result may include SRS-RSRP and / or CLI-RSSI, and the reporting of the CLI measurement result may reuse a CSI (Channel State Information) reporting mechanism.

[0194] For example, the CLI measurement result can be reported separately. The first UE sends first uplink control information (UCI) to the first serving base station, and the first serving base station receives the first uplink control information. The first uplink control information can be used to carry the CLI measurement result. For separate reporting, a separate reporting resource, i.e., a separate CSI-ReportConfig, can be configured for the CLI measurement result. The reporting configuration has an independent identifier and is associated with the SRS resource configuration SRS-ConfigID of other base stations.

[0195] The CLI measurement results can be reported in a combined manner. The first UE sends second uplink control information to the first serving base station, and the first serving base station receives the second uplink control information. The second uplink control information can be used to carry both the CLI measurement results and uplink control information other than the CLI measurement results. Uplink control information other than the CLI measurement results may include SR, ACK, CSI, etc. For combined reporting, the SRS resource configuration (SRS-ConfigID) of other base stations can be associated in the CSI-ReportConfig of the combined report.

[0196] For the first uplink control information or the second uplink control information, the first UE may report the first uplink control information or the second uplink control information to the first serving base station through the PUCCH or the PUSCH.

[0197] In one example, the reporting type of the CLI measurement result can be configured as periodic reporting or event-triggered reporting. For periodic reporting, the first UE reports the CLI measurement result according to the configured reporting period. For event-triggered reporting, the first UE reports the CLI measurement result when the CLI reporting conditions are met. For example, the CLI reporting conditions are met when the measured SRS-RSRP or CLI-RSSI exceeds a certain threshold.

[0198] In one example, a first UE may receive a CSI measurement configuration sent by a first serving base station. If the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting of SRS-RSRP, the first UE may send a CLI measurement result of the first UE to the first serving base station, and the CLI measurement result may include SRS-RSRP.

[0199] The first UE receives a CSI measurement configuration sent by the first serving base station. If the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting of SRS-RSRP and CLI-RSSI, the first UE sends a CLI measurement result of the first UE to the first serving base station, and the CLI measurement result includes SRS-RSRP and CLI-RSSI.

[0200] For example, the CSI reporting (CSI measurement configuration) needs to increase the reporting quantity (reportQuantity) to support CLI reporting. Considering that SRS-RSRP and CLI-RSSI may exist at the same time, the CLI type reporting quantity is increased to: SRS-RSRP and SRS-RSRP-CLI-RSSI. The former indicates that only SRS-RSRP exists, and the latter indicates that SRS-RSRP needs to be reported at the same time as RSSI, without reporting CLI-RSSI separately.

[0201] For example, the detailed parameters related to CLI reporting configuration are as follows:

[0202] In an example, the CLI measurement result may include a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource.

[0203] For example, if the SRS configuration information includes SRS resources corresponding to K interfering base stations (i.e., the second serving base stations), the CLI measurement results include the SRS-RSRP of all SRS resources in each interfering base station. Each interfering base station has a separate CLI report, and K interfering base stations have K CLI reports. The K CLI reports are recorded as K sub-band interference measurement fields, and the K CLI reports correspond one-to-one to the K second serving base stations.

[0204] Each CLI report has a unique CLI identifier, which is generated based on the interfering base station's base station identifier and included in the CLI report. The number of bytes occupied by the CLI identifier is ceil(log2(K)), where K represents the number of interfering base stations. The CLI report with the smallest base station identifier has a CLI identifier of 0, the CLI report with the second smallest base station identifier has a CLI identifier of 1, and so on.

[0205] For each CLI report, the number of SRS-RSRPs in the report is related to the number of SRS resources: each SRS resource corresponds to an SRS-RSRP, and each SRS resource corresponds to an SRS identifier. The number of bytes occupied by the SRS identifier is ceil(log2(M)), where M represents the number of SRS resources in the interfering base station. The SRS-RSRP corresponding to the SRS resource with the smallest SRS resource identifier has an SRS identifier of 0, the SRS-RSRP corresponding to the SRS resource with the second smallest SRS resource identifier has an SRS identifier of 1, and so on.

[0206] From the above, it can be seen that the CLI measurement result may include a CLI identifier corresponding to each interfering base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource.

[0207] If the victim UE needs to measure and report CLI-RSSI, the CLI measurement result may include CLI-RSSI and SRS-RSRP, that is, CLI-RSSI and SRS-RSRP are reported together. For example, the CLI measurement result may include K intra-subband interference measurement fields and 1 inter-subband interference measurement field, and the inter-subband interference measurement field is located after the K intra-subband interference measurement fields. Among them, for each intra-subband interference measurement field, the intra-subband interference measurement field includes the CLI identifier corresponding to the interfering base station, the SRS identifier corresponding to each SRS resource, and the SRS-RSRP corresponding to each SRS resource. Among them, the inter-subband interference measurement field may include CLI-RSSI, that is, CLI-RSSI is arranged after the last CLI report.

[0208] In one example, the SRS-RSRP value range can be [-140, -44] dBm, defined by 7 bits in 1 dB increments, with 0 representing -140 dBm, 1 representing -139 dBm, and so on. The CLI-RSSI value range can be [-100, -25] dBm, defined by 7 bits in 1 dB increments, with 0 representing -100 dBm, 1 representing -99 dBm, and so on. Of course, the above is just an example, and this value range is not limited.

[0209] In an example, the structure of the CLI measurement result can be seen in Table 2.

[0210] Table 2

[0211] In one example, after receiving the CLI measurement result, the first serving base station (i.e., the victim base station) can also determine the base station identifier corresponding to each CLI identifier in the CLI measurement result based on the mapping relationship between the CLI identifier and the base station identifier (such as the smallest base station identifier corresponds to CLI identifier 0, the second small base station identifier corresponds to CLI identifier 1, and so on), and replace the CLI identifier in the CLI measurement result with the base station identifier. In this way, the first serving base station can recover which interfering base station the CLI report in the CLI measurement result corresponds to, and replace the CLI identifier in the CLI measurement result with the base station identifier of the interfering base station.

[0212] The first serving base station may also determine the SRS resource identifier corresponding to each SRS identifier in the CLI measurement result based on a mapping relationship between the SRS identifier and the SRS resource identifier (e.g., the smallest SRS resource identifier corresponds to SRS identifier 0, and the second smallest SRS resource identifier corresponds to SRS identifier 1), and replace the SRS identifier in the CLI measurement result with the SRS resource identifier. In this way, the first serving base station can recover which SRS resource the SRS-RSRP value corresponds to, and use the SRS resource identifier to replace the SRS identifier in the CLI measurement result.

[0213] Finally, the first serving base station adds the base station identifier of the first serving base station to the CLI measurement result, and then sends the CLI measurement result to the controller, which performs collaborative scheduling based on the CLI measurement result.

[0214] Fifth, downlink scheduling of the victim UE (ie, the first UE).

[0215] In an example, the SRS resource used for CLI measurement is configured in the DL symbol or DL ​​time slot of the victim UE. Therefore, the SRS signal reception and PDSCH data reception will affect each other. To ensure the measurement of the SRS signal, it is necessary to select an appropriate PDSCH transmission strategy on the time-frequency resource where the SRS resource is located:

[0216] Method 1: No PDSCH scheduling. In the time slot with SRS resources, the victim base station does not schedule any PDSCH transmission. In this way, the victim UE is prohibited from receiving PDSCH data in the time slot where the SRS resources are located. The victim UE can only receive SRS signals at the location of the SRS resources and obtain the CLI measurement result.

[0217] Method 2: Rate matching on PDSCH: In a time slot with SRS resources, the victim base station can rate match PDSCH data in the time slot where the SRS resources are located, and the victim UE can rate match PDSCH data in the time slot where the SRS resources are located.

[0218] For example, since SRS resources are at the resource element (RE) level, the RE-level rate matching parameters can be configured for PDSCH. In this case, the SRS resource set or SRS resource that needs to be rate matched can be added to the PDSCH configuration parameter PDSCH-Config, as shown in the following configuration parameters:

[0219] After receiving the above configuration parameters, the victim UE will know that the SRS resources included in the PDSCH configuration parameters cannot be used for PDSCH. For non-periodic SRS and semi-persistent SRS, the victim UE performs PDSCH rate matching around SRS only when SRS is activated.

[0220] For the above two methods, when scheduling PDSCH through DCI, the victim UE can know which method to use for processing, and there is no need to inform the victim UE which method to use through special signaling.

[0221] As can be seen from the above technical solutions, in F-TDD or SBFD systems, CLI between UEs can affect overall system performance. By obtaining UE CLI measurement results, inter-UE collaborative scheduling can be implemented based on these CLI measurement results, reducing CLI between UEs and improving data transmission performance.

[0222] In one example, the controller sends SRS configuration information to the interfering base station and the victim base station. The interfering base station sends the SRS configuration information to the interfering UE it serves, and the victim base station sends the SRS configuration information to the victim UE it serves. The interfering UE sends a CLI measurement signal (i.e., an SRS signal) based on the SRS configuration information. The victim UE receives and measures the SRS signal based on the SRS configuration information to obtain a CLI measurement result.

[0223] The victim UE reports the CLI measurement result to the victim base station, and the victim base station reports the CLI measurement result to the controller for the controller to perform coordinated scheduling based on the CLI measurement result.

[0224] Based on the same inventive concept, a CLI measurement device corresponding to the CLI measurement method, as well as a base station and a UE are also provided. Since the principles of solving the problem by the base station and the UE are similar to those of the CLI measurement method, the implementation of the base station and the UE refers to the CLI measurement method, and the repeated parts are not repeated here.

[0225] Based on the same application concept as the above method, this application proposes an example of a CLI measurement device, which is applied to a first UE. If the first UE is a victim UE with intra-subband interference, as shown in FIG4A , the device includes:

[0226] A receiving module 411 is configured to receive SRS configuration information sent by a first serving base station of the first UE, where the SRS configuration information includes SRS resources used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0227] The receiving module 411 is further configured to receive, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, where the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0228] The sending module 412 is configured to send the CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP.

[0229] In one example, the SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

[0230] In an example, when the receiving module 411 receives the SRS signal sent by the second UE through the SRS resource used by the second UE, the receiving module 411 is specifically configured to:

[0231] If the SRS configuration information further includes a CLI measurement identifier, and the CLI measurement identifier is used to indicate that the SRS resource is used for CLI measurement between UEs, an SRS signal sent by the second UE through the SRS resource is received on the SRS resource used by the second UE.

[0232] In one example, the SRS configuration information includes an SRS resource allocated to a second serving base station of the second UE; wherein the SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource, or the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource;

[0233] When receiving the SRS signal sent by the second UE through the SRS resource used by the second UE, the receiving module 411 is specifically configured to: receive the SRS signal on each SRS resource indicated by the SRS configuration information.

[0234] In one example, the SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource;

[0235] If the SRS resource is a cell-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the serving cell; or

[0236] If the SRS resource is a group-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the user group; or

[0237] If the SRS resource is a UE-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is an RSRP value that interferes with the SRS signal of the UE.

[0238] In an example, the sending module 412 sends the CLI measurement result of the first UE to the first serving base station specifically for:

[0239] sending first uplink control information to the first serving base station, where the first uplink control information is used to carry the CLI measurement result; or,

[0240] Sending second uplink control information to the first serving base station, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result;

[0241] The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource.

[0242] The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

[0243] In an example, if the first UE is a victim UE with inter-subband interference, the receiving module 411 is further used to measure the interference signal received by the downlink subband of the SBFD resource to obtain the CLI-RSSI corresponding to the interference signal; wherein the interference signal is an SRS signal sent by the third UE based on the SRS resource indicated by the SRS configuration information, or the interference signal is PUSCH data sent by the third UE on the uplink subband resource, the third UE is an interfering UE that interferes with the first UE, and the SRS resource is an SRS resource configured in the uplink subband of the SBFD resource;

[0244] The sending module 412 is further configured to send a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the CLI-RSSI.

[0245] In an example, if the first UE is a victim UE with both intra-subband interference and inter-subband interference; the sending module 412 is further used to send the CLI measurement result of the first UE to the first serving base station, and the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

[0246] In one example, if the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located after the K intra-subband interference measurement fields;

[0247] Among them, for the intra-subband interference measurement field corresponding to each second service base station, the intra-subband interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station; the inter-subband interference measurement field includes the CLI-RSSI.

[0248] In an example, the sending module 412 sends the CLI measurement result of the first UE to the first serving base station specifically for:

[0249] Receive the CSI measurement configuration sent by the first serving base station. If the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting SRS-RSRP, or SRS-RSRP and CLI-RSSI, send the CLI measurement result of the first UE to the first serving base station.

[0250] In one example, the apparatus further comprises:

[0251] The processing module is configured to prohibit receiving PDSCH data in the time slot where the SRS resource is located; or perform rate matching on the PDSCH data in the time slot where the SRS resource is located.

[0252] Based on the same application concept as the above method, this application proposes an example of a CLI measurement device, which is applied to a base station. If the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, as shown in FIG4B , the device may include:

[0253] A determination module 421 is configured to determine that the first UE is a victim UE;

[0254] an acquiring module 422 configured to acquire SRS configuration information if it is determined that the first UE is a victim UE, the SRS configuration information including SRS resources used by a second UE, where the second UE is an interfering UE that interferes with the first UE;

[0255] a sending module 423 configured to send the SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to obtain configuration information of the SRS resource used by the second UE, and receive an SRS signal sent by the second UE using the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource;

[0256] The receiving module 424 is configured to receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP.

[0257] In an example, when the determining module 421 determines that the first UE is a victim UE, it is specifically configured to:

[0258] If it is detected that the downlink data transmission of the first UE in the fixed time slot fails, and it is determined based on the frame structure of the neighboring base station that the fixed time slot of the neighboring base station is an uplink time slot or a flexible time slot, the first UE is determined to be a victim UE; or,

[0259] If it is detected that downlink data transmission of the first UE in the fixed time slot fails, and based on the SBFD configuration of the neighboring base station, it is determined that the neighboring base station configures SBFD resources in the fixed time slot, and the SBFD resources are used for the uplink subband, the first UE is determined to be a victim UE.

[0260] In one example, when the acquisition module 422 acquires the SRS configuration information, it is specifically used to:

[0261] Sending an interference message to a controller, where the interference message includes a time slot position of the fixed time slot, where the interference message is used to enable the controller to determine an interfering base station based on a frame structure of multiple base stations, where the fixed time slot of the interfering base station is an uplink time slot or a flexible time slot, or where the interference message is used to enable the controller to determine the interfering base station based on SBFD configurations of the multiple base stations, where the interfering base station is configured with SBFD resources in the fixed time slot, and where the SBFD resources are used for an uplink subband;

[0262] SRS configuration information sent by the controller is received, where the SRS configuration information includes SRS resources allocated by the controller to the interfering UE under the interfering base station.

[0263] In one example, when the sending module 423 sends the SRS configuration information to the first UE, it is specifically used to: obtain capability information of the first UE;

[0264] If it is determined based on the capability information that the first UE has the function of simultaneously receiving data and measuring SRS, the SRS configuration information is sent to the first UE.

[0265] In one example, the receiving module 424 is also used to receive capability information sent by the first UE during the access process of the first UE, and store the capability information in a designated storage medium; wherein the capability information indicates whether the first UE has the function of simultaneously receiving data and measuring SRS.

[0266] In one example, the SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

[0267] In one example, if the base station is a second serving base station of the second UE,

[0268] The acquisition module 422 is further configured to acquire the SRS configuration information, where the SRS configuration information includes an SRS resource allocated to the second serving base station; wherein the SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource, or the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource;

[0269] The acquisition module 422 is further configured to acquire at least one candidate SRS resource corresponding to the second serving base station from the SRS configuration information; and select a target SRS resource from all candidate SRS resources;

[0270] The sending module 423 is further configured to allocate the target SRS resource to the second UE, so that the second UE sends the SRS signal on the target SRS resource.

[0271] In one example, the SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource;

[0272] If the SRS resource is a cell-level SRS resource, the target SRS resource acquired by the acquisition module 423 is all candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in the serving cell managed by the second serving base station; or,

[0273] If the SRS resource is a group-level SRS resource, the target SRS resource acquired by the acquisition module 423 is all candidate SRS resources or part of the candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in a user group, and the user group includes at least one interfering UE; or

[0274] If the SRS resource is a UE-level SRS resource, the target SRS resource acquired by the acquisition module 423 is at least one candidate SRS resource, and the target SRS resource is allocated to an interfering UE.

[0275] In one example, when the receiving module 424 receives the CLI measurement result sent by the first UE, it is specifically configured to: receive first uplink control information sent by the first UE, where the first uplink control information is only used to carry the CLI measurement result; or

[0276] receiving second uplink control information sent by the first UE, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result;

[0277] The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource;

[0278] The CLI identifier in the CLI measurement result is determined based on a mapping relationship between the CLI identifier and the base station identifier of the second serving base station; and the SRS identifier in the CLI measurement result is determined based on a mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

[0279] In one example, the determination module 421 is also used to determine the base station identifier corresponding to each CLI identifier based on the mapping relationship between the CLI identifier and the base station identifier, and replace the CLI identifier in the CLI measurement result with the base station identifier; based on the mapping relationship between the SRS identifier and the SRS resource identifier, determine the SRS resource identifier corresponding to each SRS identifier, and replace the SRS identifier in the CLI measurement result with the SRS resource identifier.

[0280] In one example, if the first UE is a victim UE with inter-subband interference,

[0281] The receiving module 424 is further used to receive the CLI measurement result sent by the first UE, and the CLI measurement result includes the CLI-RSSI; wherein, the CLI-RSSI is obtained by measuring the interference signal received by the first UE on the downlink subband of the SBFD resource, and the interference signal is the SRS signal sent by the third UE based on the SRS resource indicated by the SRS configuration information, or the interference signal is the PUSCH data sent by the third UE on the uplink subband resource, the third UE is an interfering UE that interferes with the first UE, and the SRS resource is the SRS resource configured in the uplink subband of the SBFD resource.

[0282] In an example, if the first UE is a victim UE with both intra-subband interference and inter-subband interference, the receiving module 424 is further configured to receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

[0283] In one example, if the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located after the K intra-subband interference measurement fields;

[0284] Among them, for the intra-subband interference measurement field corresponding to each second service base station, the intra-subband interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station; the inter-subband interference measurement field includes the CLI-RSSI.

[0285] Based on the same application concept as the above method, an example of this application proposes a base station, as shown in Figure 5A. The base station may include a processor 511 and a machine-readable storage medium 512, and the machine-readable storage medium 512 stores machine-executable instructions that can be executed by the processor 511; the processor 511 is used to execute the machine-executable instructions to implement the CLI measurement method disclosed in the above example of this application.

[0286] In one example, the processor 511 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 511 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor 511 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 511 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen.

[0287] In one example, the base station may optionally include a peripheral device interface 513 and at least one peripheral device. The processor 511 and the peripheral device interface 513 may be connected via a bus or signal lines. Each peripheral device may be connected to the peripheral device interface 513 via a bus, signal lines, or circuit boards. The peripheral device may include at least one of a radio frequency circuit 514 and a power supply 515.

[0288] The radio frequency circuit 514 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 514 communicates with communication networks and other communication devices via electromagnetic signals. The radio frequency circuit 514 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 514 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a user identity module card, etc. The radio frequency circuit 514 can communicate with user equipment via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G, and 5G), a wireless local area network, and / or a WiFi (Wireless Fidelity) network.

[0289] The power supply 515 is used to supply power to various components in the base station. The power supply 515 can be alternating current, direct current, a disposable battery, or a rechargeable battery.

[0290] Based on the same application concept as the above method, an example of this application proposes a user device, as shown in Figure 5B. The user device may include a processor 521 and a machine-readable storage medium 522. The machine-readable storage medium 522 stores machine-executable instructions that can be executed by the processor 521; the processor 521 is used to execute the machine-executable instructions to implement the CLI measurement method disclosed in the above example of this application.

[0291] In one example, the processor 521 may include one or more processing cores, such as a quad-core processor, an octal-core processor, etc. The processor 521 may be implemented in at least one hardware form selected from the group consisting of a DSP, an FPGA, and a PLA. The processor 521 may also include a main processor and a coprocessor.

[0292] In one example, the user device further includes a peripheral device interface 523 and at least one peripheral device. The processor 521 and the peripheral device interface 523 may be connected via a bus or signal lines. Each peripheral device may be connected to the peripheral device interface 523 via a bus, signal lines, or circuit boards. The peripheral device may include at least one of a radio frequency circuit 524, a touch screen display 525, a camera 526, and a power supply 527.

[0293] The radio frequency circuit 524 is used to receive and transmit RF signals, also known as electromagnetic signals. The radio frequency circuit 524 communicates with the communication network and other communication devices via electromagnetic signals. The radio frequency circuit 524 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 524 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a subscriber identity module card, and the like. The radio frequency circuit 524 can communicate with the base station via at least one wireless communication protocol. Such wireless communication protocols include, but are not limited to, the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks, a wireless local area network, and / or WiFi.

[0294] The display screen 525 is used to display a UI (User Interface). The UI may include graphics, text, icons, videos, or any combination thereof. When the display screen 525 is a touch screen display, the display screen 525 is also capable of collecting touch signals on or above the surface of the display screen 525. The touch signals can be input as control signals to the processor 521 for processing. In this case, the display screen 525 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard.

[0295] In some embodiments, the display screen 525 can be one, set on the front panel of the user device; in other embodiments, the display screen 525 can be at least two, set on different surfaces of the user device or in a folding design; in still other embodiments, the display screen 525 can be a flexible display screen, set on a curved surface or a folding surface of the user device. The display screen 525 can even be set into a non-rectangular irregular shape, that is, a special-shaped screen. The display screen 525 can be made of materials such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode).

[0296] The camera assembly 526 is used to capture images or videos. Optionally, the camera assembly 526 includes a front camera and a rear camera. Typically, the front camera is set on the front panel of the user device, and the rear camera is set on the back of the user device. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, the fusion of the main camera and the wide-angle camera to realize panoramic shooting and VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 526 may also include a flash. The flash can be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0297] Power supply 527 is used to power various components in the user device. Power supply 527 can be AC ​​power, DC power, a disposable battery, or a rechargeable battery. When power supply 527 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged via a wired line, while a wireless rechargeable battery is a battery that is charged via a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0298] Based on the same application concept as the above method, an example of this application also provides a machine-readable storage medium, on which a number of computer instructions are stored. When the computer instructions are executed by a processor, the CLI measurement method disclosed in the above example of this application can be implemented.

[0299] The machine-readable storage medium may be any electronic, magnetic, optical, or other physical storage device that may contain or store information, such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: RAM (Random Access Memory), volatile memory, non-volatile memory, flash memory, a storage drive (such as a hard disk drive), a solid-state drive, any type of storage disk (such as a CD, DVD, etc.), or similar storage media, or a combination thereof.

[0300] The systems, devices, modules, or units described in the above embodiments may be implemented by a computer entity or by a product having certain functions. A typical implementation device is a computer, which may be in the form of a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email transceiver, game console, tablet computer, wearable device, or any combination of these devices.

[0301] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A CLI measurement method, characterized in that: The method is applied to a first UE. If the first UE is a victim UE with intra-subband interference, the method includes: receiving SRS configuration information sent by a first serving base station of the first UE, where the SRS configuration information includes an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE; receiving, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, where the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource; Send a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP.

2. The method according to claim 1, characterized in that The SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

3. The method according to claim 1, characterized in that The receiving, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, includes: If the SRS configuration information further includes a CLI measurement identifier, and the CLI measurement identifier is used to indicate that the SRS resource is used for CLI measurement between UEs, then an SRS signal sent by the second UE through the SRS resource is received on the SRS resource used by the second UE.

4. The method according to any one of claims 1 to 3, characterized in that: The SRS configuration information includes an SRS resource allocated to a second serving base station for the second UE; wherein the SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource, or the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource; The receiving, on the SRS resource used by the second UE, the SRS signal sent by the second UE through the SRS resource includes: for each SRS resource indicated by the SRS configuration information, receiving the SRS signal on the SRS resource.

5. The method according to claim 4, characterized in that The SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource; If the SRS resource is a cell-level SRS resource, when an SRS signal is received on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the serving cell; or, If the SRS resource is a group-level SRS resource, when an SRS signal is received on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the user group; or, If the SRS resource is a UE-level SRS resource, when an SRS signal is received on the SRS resource, the SRS-RSRP determined based on the SRS signal is an RSRP value that interferes with the SRS signal of the UE.

6. The method according to claim 4, characterized in that The sending the CLI measurement result of the first UE to the first serving base station includes: sending first uplink control information to the first serving base station, where the first uplink control information is used to carry the CLI measurement result; or, Sending second uplink control information to the first serving base station, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result; The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource; The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

7. The method according to claim 1, characterized in that If the first UE is a victim UE with inter-subband interference, the method further includes: An interference signal received by a downlink subband of an SBFD resource is measured to obtain a CLI-RSSI corresponding to the interference signal; wherein the interference signal is an SRS signal sent by a third UE based on an SRS resource indicated by SRS configuration information, or the interference signal is PUSCH data sent by a third UE on an uplink subband resource; wherein the third UE is an interference UE that interferes with the first UE, and the SRS resource is an SRS resource configured in an uplink subband of the SBFD resource; Send a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the CLI-RSSI.

8. The method according to claim 7, characterized in that If the first UE is a victim UE with both intra-subband interference and inter-subband interference, the method further includes: Sending a CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

9. The method according to claim 8, characterized in that If the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located behind the K intra-subband interference measurement fields; Among them, for the intra-subband interference measurement field corresponding to each second service base station, the intra-subband interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station; the inter-subband interference measurement field includes the CLI-RSSI.

10. The method according to claim 1 or 7, characterized in that: The sending the CLI measurement result of the first UE to the first serving base station includes: Receive the CSI measurement configuration sent by the first serving base station, and if the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting SRS-RSRP, or SRS-RSRP and CLI-RSSI, send the CLI measurement result of the first UE to the first serving base station.

11. The method according to claim 1, characterized in that: After receiving, on the SRS resource used by the second UE, the SRS signal sent by the second UE through the SRS resource, the method further includes: prohibiting the reception of PDSCH data in the time slot where the SRS resource is located; or, Rate matching is performed on the PDSCH data in the time slot where the SRS resource is located.

12. A CLI measurement method, characterized in that: Applied to a base station, if the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, the method includes: If it is determined that the first UE is a victim UE, SRS configuration information is obtained, where the SRS configuration information includes an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE; Sending the SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to learn configuration information of the SRS resource used by the second UE, and receive an SRS signal sent by the second UE through the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource; A CLI measurement result sent by the first UE is received, where the CLI measurement result includes the SRS-RSRP.

13. The method according to claim 12, characterized in that The determining that the first UE is a victim UE includes: If it is detected that the downlink data transmission of the first UE in the fixed time slot fails, and it is determined based on the frame structure of the neighboring base station that the fixed time slot of the neighboring base station is an uplink time slot or a flexible time slot, the first UE is determined to be a victim UE; or, If it is detected that downlink data transmission of the first UE in the fixed time slot fails, and it is determined based on the SBFD configuration of the neighboring base station that the neighboring base station configures SBFD resources in the fixed time slot, and the SBFD resources are used for the uplink subband, the first UE is determined to be a victim UE.

14. The method according to claim 12, characterized in that The obtaining of SRS configuration information includes: Sending an interference message to a controller, the interference message including the time slot position of the fixed time slot, the interference message being used to enable the controller to determine an interfering base station based on a frame structure of multiple base stations, the interfering base station being an uplink time slot or a flexible time slot in the fixed time slot, or the interference message being used to enable the controller to determine an interfering base station based on SBFD configurations of multiple base stations, the interfering base station being configured with SBFD resources in the fixed time slot, and the SBFD resources being used for an uplink subband; SRS configuration information sent by the controller is received, where the SRS configuration information includes SRS resources allocated by the controller to the interfering UE under the interfering base station.

15. The method according to claim 12, characterized in that The sending the SRS configuration information to the first UE includes: Acquire capability information of the first UE; If it is determined based on the capability information that the first UE has the function of simultaneously receiving data and measuring SRS, the SRS configuration information is sent to the first UE.

16. The method according to claim 15, characterized in that Before acquiring the capability information of the first UE, the method further includes: During the access process of the first UE, capability information sent by the first UE is received, and the capability information is stored in a designated storage medium; wherein the capability information indicates whether the first UE has the function of simultaneously receiving data and measuring SRS.

17. The method according to any one of claims 12 to 16, characterized in that: The SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

18. The method according to any one of claims 12 to 16, characterized in that: If the base station is a second serving base station for the second UE, the method further includes: Acquire the SRS configuration information, the SRS configuration information including the SRS resource allocated to the second serving base station; wherein the SRS resource is determined by the base station identifier of the second serving base station and the SRS resource identifier of the SRS resource, or the SRS resource is determined by the base station identifier of the second serving base station, the SRS resource set identifier of the SRS resource set to which the SRS resource belongs, and the SRS resource of the SRS resource. Resource identification is determined; Acquire at least one candidate SRS resource corresponding to the second serving base station from the SRS configuration information; A target SRS resource is selected from all candidate SRS resources, and the target SRS resource is allocated to the second UE, so that the second UE sends the SRS signal on the target SRS resource.

19. The method according to claim 18, characterized in that The SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource; If the SRS resource is a cell-level SRS resource, the target SRS resource is all candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in the serving cell managed by the second serving base station; or, If the SRS resource is a group-level SRS resource, the target SRS resource is all candidate SRS resources or part of the candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in a user group, and the user group includes at least one interfering UE; or, If the SRS resource is a UE-level SRS resource, the target SRS resource is at least one candidate SRS resource, and the target SRS resource is allocated to an interfering UE.

20. The method according to any one of claims 12 to 16, characterized in that: The receiving a CLI measurement result sent by the first UE includes: receiving first uplink control information sent by the first UE, where the first uplink control information is only used to carry the CLI measurement result; or, receiving second uplink control information sent by the first UE, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result; The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource; The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

21. The method according to claim 20, characterized in that After the receiving of the first uplink control information sent by the first UE, or after the receiving of the second uplink control information sent by the first UE, the method further includes: Based on the mapping relationship between the CLI identifier and the base station identifier, determine the base station identifier corresponding to each CLI identifier, and replace the CLI identifier in the CLI measurement result with the base station identifier; Based on the mapping relationship between the SRS identifier and the SRS resource identifier, the SRS resource identifier corresponding to each SRS identifier is determined, and the SRS identifier in the CLI measurement result is replaced by the SRS resource identifier.

22. The method according to claim 12, characterized in that If the first UE is a victim UE with inter-subband interference, the method further includes: Receive a CLI measurement result sent by the first UE, the CLI measurement result including a CLI-RSSI; wherein the CLI-RSSI is obtained by measuring an interference signal received by the first UE on a downlink subband of SBFD resources, and the interference signal is an SRS signal sent by a third UE based on an SRS resource indicated by SRS configuration information, or the interference signal is PUSCH data sent by the third UE on an uplink subband resource; wherein the third UE is an interfering UE that interferes with the first UE, and the SRS resource is an SRS resource configured in an uplink subband of SBFD resources.

23. The method according to claim 22, characterized in that If the first UE is a victim UE with both intra-subband interference and inter-subband interference, the method further includes: A CLI measurement result sent by the first UE is received, where the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

24. The method according to claim 23, characterized in that If the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located behind the K intra-subband interference measurement fields; Among them, for the intra-subband interference measurement field corresponding to each second service base station, the intra-subband interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station; the inter-subband interference measurement field includes the CLI-RSSI.

25. A CLI measurement device, characterized in that: The device is applied to a first UE. If the first UE is a victim UE with intra-subband interference, the device includes: a receiving module, configured to receive SRS configuration information sent by a first serving base station of the first UE, wherein the SRS configuration information includes an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE; The receiving module is further configured to receive, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource; A sending module is used to send the CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP.

26. The device according to claim 25, characterized in that The SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

27. The device according to claim 25, characterized in that When the receiving module receives, on the SRS resource used by the second UE, an SRS signal sent by the second UE through the SRS resource, the receiving module is specifically configured to: If the SRS configuration information further includes a CLI measurement identifier, and the CLI measurement identifier is used to indicate that the SRS resource is used for CLI measurement between UEs, then an SRS signal sent by the second UE through the SRS resource is received on the SRS resource used by the second UE.

28. The device according to any one of claims 25 to 27, characterized in that The SRS configuration information includes an SRS resource allocated to a second serving base station for the second UE; wherein the SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource, or the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource; When the receiving module receives the SRS signal sent by the second UE through the SRS resource on the SRS resource used by the second UE, the receiving module is specifically used to: for each SRS resource indicated by the SRS configuration information, receive the SRS signal on the SRS resource.

29. The device according to claim 28, characterized in that The SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource; If the SRS resource is a cell-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the serving cell; or, If the SRS resource is a group-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is the accumulated RSRP value of the SRS signals of all interfering UEs in the user group; or, If the SRS resource is a UE-level SRS resource, when the receiving module receives an SRS signal on the SRS resource, the SRS-RSRP determined based on the SRS signal is an RSRP value that interferes with the SRS signal of the UE.

30. The device according to claim 28, characterized in that The sending module is specifically used to send the CLI measurement result of the first UE to the first serving base station: sending first uplink control information to the first serving base station, where the first uplink control information is used to carry the CLI measurement result; or, Sending second uplink control information to the first serving base station, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result; The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource; The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

31. The device according to claim 25, characterized in that If the first UE is a victim UE with inter-subband interference, The receiving module is further used to measure the interference signal received by the downlink subband of the SBFD resource to obtain the CLI-RSSI corresponding to the interference signal; wherein the interference signal is an SRS signal sent by the third UE based on the SRS resource indicated by the SRS configuration information, or the interference signal is PUSCH data sent by the third UE on the uplink subband resource, the third UE is an interference UE that interferes with the first UE, and the SRS resource is an SRS resource configured in the uplink subband of the SBFD resource; The sending module is further used to send the CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the CLI-RSSI.

32. The device according to claim 31, characterized in that If the first UE is a victim UE with both intra-subband interference and inter-subband interference; The sending module is further used to send the CLI measurement result of the first UE to the first serving base station, where the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

33. The device according to claim 32, characterized in that If the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located behind the K intra-subband interference measurement fields; Among them, for each second serving base station corresponding to the sub-band interference measurement field, the sub-band interference measurement field includes the CLI identifier corresponding to the second serving base station, the SRS identifier corresponding to each SRS resource corresponding to the second serving base station, and the second serving base station The SRS-RSRP corresponding to each corresponding SRS resource; the inter-subband interference measurement field includes the CLI-RSSI.

34. The device according to claim 25 or 31, characterized in that The sending module is specifically used to send the CLI measurement result of the first UE to the first serving base station: Receive the CSI measurement configuration sent by the first serving base station, and if the CSI measurement configuration includes a reporting amount, and the reporting amount is used to indicate reporting SRS-RSRP, or SRS-RSRP and CLI-RSSI, send the CLI measurement result of the first UE to the first serving base station.

35. The device according to claim 25, characterized in that The device also includes: The processing module is used to prohibit receiving PDSCH data in the time slot where the SRS resource is located; or to perform rate matching on the PDSCH data in the time slot where the SRS resource is located.

36. A CLI measurement device, characterized in that: Applied to a base station, if the base station is a first serving base station of a first UE, and the first UE is a victim UE with intra-subband interference, the device includes: A determination module, configured to determine that the first UE is a victim UE; an acquisition module, configured to acquire SRS configuration information if it is determined that the first UE is a victim UE, the SRS configuration information including an SRS resource used by a second UE, where the second UE is an interfering UE that interferes with the first UE; A sending module, configured to send the SRS configuration information to the first UE; wherein the SRS configuration information is used to enable the first UE to obtain configuration information of the SRS resource used by the second UE, and receive an SRS signal sent by the second UE through the SRS resource, wherein the SRS signal is used to obtain an SRS-RSRP corresponding to the SRS resource; A receiving module is used to receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP.

37. The device according to claim 36, characterized in that When the determining module determines that the first UE is a victim UE, it is specifically configured to: If it is detected that the downlink data transmission of the first UE in the fixed time slot fails, and it is determined based on the frame structure of the neighboring base station that the fixed time slot of the neighboring base station is an uplink time slot or a flexible time slot, the first UE is determined to be a victim UE; or, If it is detected that downlink data transmission of the first UE in the fixed time slot fails, and it is determined based on the SBFD configuration of the neighboring base station that the neighboring base station configures SBFD resources in the fixed time slot, and the SBFD resources are used for the uplink subband, the first UE is determined to be a victim UE.

38. The device according to claim 36, characterized in that When the acquisition module acquires the SRS configuration information, it is specifically used to: Sending an interference message to a controller, the interference message including the time slot position of the fixed time slot, the interference message being used to enable the controller to determine an interfering base station based on a frame structure of multiple base stations, the interfering base station being an uplink time slot or a flexible time slot in the fixed time slot, or the interference message being used to enable the controller to determine an interfering base station based on SBFD configurations of multiple base stations, the interfering base station being configured with SBFD resources in the fixed time slot, and the SBFD resources being used for an uplink subband; SRS configuration information sent by the controller is received, where the SRS configuration information includes SRS resources allocated by the controller to the interfering UE under the interfering base station.

39. The device according to claim 36, characterized in that When the sending module sends the SRS configuration information to the first UE, it is specifically used to: Acquire capability information of the first UE; If it is determined based on the capability information that the first UE has the function of simultaneously receiving data and measuring SRS, the SRS configuration information is sent to the first UE.

40. The device according to claim 39, characterized in that The receiving module is also used to receive capability information sent by the first UE during the access process of the first UE, and store the capability information in a designated storage medium; wherein the capability information indicates whether the first UE has the function of simultaneously receiving data and measuring SRS.

41. The device according to any one of claims 36 to 40, characterized in that The SRS resource is an SRS resource in a target time slot; wherein the target time slot has the following characteristics: the second UE sends uplink data in the target time slot, and the first UE receives downlink data in the target time slot.

42. The device according to any one of claims 36 to 40, characterized in that If the base station is a second serving base station for the second UE, The acquisition module is further used to acquire the SRS configuration information, where the SRS configuration information includes an SRS resource allocated to the second serving base station; wherein the SRS resource is determined by a base station identifier of the second serving base station and an SRS resource identifier of the SRS resource, or the SRS resource is determined by a base station identifier of the second serving base station, an SRS resource set identifier of an SRS resource set to which the SRS resource belongs, and an SRS resource identifier of the SRS resource; The acquisition module is further configured to acquire at least one candidate SRS resource corresponding to the second serving base station from the SRS configuration information; and select a target SRS resource from all candidate SRS resources; The sending module is further configured to allocate the target SRS resource to the second UE so that the second UE The SRS signal is sent on the marked SRS resource.

43. The device according to claim 42, characterized in that The SRS resource is a cell-level SRS resource, a group-level SRS resource, or a UE-level SRS resource; If the SRS resource is a cell-level SRS resource, the target SRS resource acquired by the acquisition module is all candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in the serving cell managed by the second serving base station; or, If the SRS resource is a group-level SRS resource, the target SRS resource acquired by the acquisition module is all candidate SRS resources or part of the candidate SRS resources, and the target SRS resource is allocated to all interfering UEs in a user group, and the user group includes at least one interfering UE; or, If the SRS resource is a UE-level SRS resource, the target SRS resource acquired by the acquisition module is at least one candidate SRS resource, and the target SRS resource is allocated to an interfering UE.

44. The device according to any one of claims 36 to 40, characterized in that When the receiving module receives the CLI measurement result sent by the first UE, it is specifically used to: receiving first uplink control information sent by the first UE, where the first uplink control information is only used to carry the CLI measurement result; or, receiving second uplink control information sent by the first UE, where the second uplink control information is used to carry the CLI measurement result and uplink control information other than the CLI measurement result; The CLI measurement result includes a CLI identifier corresponding to each second serving base station, an SRS identifier corresponding to each SRS resource, and an SRS-RSRP corresponding to each SRS resource; The CLI identifier in the CLI measurement result is determined based on the mapping relationship between the CLI identifier and the base station identifier of the second serving base station; the SRS identifier in the CLI measurement result is determined based on the mapping relationship between the SRS identifier and the SRS resource identifier of the SRS resource.

45. The device according to claim 40, characterized in that The determination module is also used to determine the base station identifier corresponding to each CLI identifier based on the mapping relationship between the CLI identifier and the base station identifier, and replace the CLI identifier in the CLI measurement result with the base station identifier; based on the mapping relationship between the SRS identifier and the SRS resource identifier, determine the SRS resource identifier corresponding to each SRS identifier, and replace the SRS identifier in the CLI measurement result with the SRS resource identifier.

46. ​​The device according to claim 36, characterized in that If the first UE is a victim UE with inter-subband interference, The receiving module is also used to receive a CLI measurement result sent by the first UE, and the CLI measurement result includes a CLI-RSSI; wherein the CLI-RSSI is obtained by measuring an interference signal received by the first UE on a downlink subband of SBFD resources, and the interference signal is an SRS signal sent by a third UE based on an SRS resource indicated by SRS configuration information, or the interference signal is PUSCH data sent by a third UE on an uplink subband resource, and the third UE is an interfering UE that interferes with the first UE, and the SRS resource is an SRS resource configured in an uplink subband of SBFD resources.

47. The device according to claim 46, characterized in that If the first UE is a victim UE with both intra-subband interference and inter-subband interference, The receiving module is further used to receive a CLI measurement result sent by the first UE, where the CLI measurement result includes the SRS-RSRP and the CLI-RSSI.

48. The device according to claim 47, characterized in that If the SRS configuration information includes SRS resources corresponding to K second serving base stations, the CLI measurement result includes K intra-subband interference measurement fields and 1 inter-subband interference measurement field, the K intra-subband interference measurement fields correspond one-to-one to the K second serving base stations, and the inter-subband interference measurement field is located behind the K intra-subband interference measurement fields; Among them, for the intra-subband interference measurement field corresponding to each second service base station, the intra-subband interference measurement field includes the CLI identifier corresponding to the second service base station, the SRS identifier corresponding to each SRS resource corresponding to the second service base station, and the SRS-RSRP corresponding to each SRS resource corresponding to the second service base station; the inter-subband interference measurement field includes the CLI-RSSI.

49. A user equipment, characterized in that include: a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor; The processor is used to execute machine executable instructions to implement the method described in any one of claims 1-11.

50. A base station, characterized in that: include: a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor; The processor is used to execute machine executable instructions to implement the method described in any one of claims 12-24.

Images