Crosslink interference measurement method, crosslink interference measurement device, base station, and controller

Abstract

The present application provides a crosslink interference measurement method, a crosslink interference measurement device, a base station, and a controller, relating to the field of communications technology, in which the controller sends configuration information of an interference measurement window to a victim base station and sends measurement signal resource configuration information to the victim base station and the interfering base station, the interfering base station uses different beams to transmit measurement signals to the victim base station, the victim base station measures the CLI values ​​of the beams corresponding to each measurement signal within the interference measurement window and reports the beam measurement results to the controller, and the controller cooperatively schedules between the base stations based on the beam measurement results. The technical solutions provided in the embodiments of the present application can be applied to suppress CLI in an F-TDD communication system, improve the performance of the F-TDD communication system, reduce the complexity of interference measurement for the victim base station, and save the energy of the victim base station.

Description

[Technical Field]

[0001] The present application relates to the field of communication technology, and in particular to a crosslink interference measurement method, a crosslink interference measurement device, a base station, and a controller. [Background technology]

[0002] Beamforming technology is used in 5G-Adv communication systems to improve cell edge coverage, reduce interference between users, and enhance overall system performance. In 5G-Adv Flexible Time Division Duplex (F-TDD) systems, cross-link interference (CLI) exists between base stations, and the degree of CLI interference varies depending on the beam direction. CLI affects reception at the base station and user equipment (UE), reducing the received signal-to-noise ratio and increasing the error rate. This ultimately impacts the overall performance of the 5G-Adv communication system. Therefore, appropriate techniques must be adopted to suppress CLI in different beam directions in Flexible Time Division Duplex (F-TDD) communication systems and improve the performance of F-TDD communication systems. Summary of the Invention

[0003] The embodiments of the present application aim to provide a crosslink interference measurement method, apparatus, base station, and controller for suppressing CLI in different beam directions in an F-TDD communication system and improving the performance of the F-TDD communication system.

[0004] In a first aspect, an embodiment of the present application provides a crosslink interference measurement method applied to a victim base station, the method comprising: receiving different measurement signals transmitted by different beams from the interfering base station within the interference measurement window, the measurement signals having one-to-one correspondence with the beams, and the different beams having different directions; and measuring a CLI value of the beam corresponding to each of the measurement signals based on each of the measurement signals.

[0005] As a second aspect, an embodiment of the present application provides a crosslink interference measurement method applied to an interfering base station, wherein at least one measurement signal is configured in the interfering base station, and the time-frequency domain resources occupied by some or all of the measurement signals of the at least one measurement signal are within an interference measurement window, and the measurement signals correspond one-to-one to beams, and the directions of different beams are different, and the method includes: Obtaining second resource allocation information of the interfering base station, where the second resource allocation information indicates a time-frequency domain resource occupied by the at least one measurement signal; and transmitting a measurement signal to the victim base station using a different beam based on the second resource allocation information.

[0006] In a third aspect, an embodiment of the present application provides a cross-link interference measurement method applied to a controller, the method comprising: Obtaining second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, wherein the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to the beam one-to-one, and the directions of different beams are different; transmitting the second allocation information to the victim base station, transmitting second resource allocation information of the interfering base station to each interfering base station, and transmitting first resource allocation information to the victim base station, wherein the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifiers of the first resource allocation information correspond one-to-one to the victim base station.

[0007] In a fourth aspect, an embodiment of the present application provides a crosslink interference measurement device applied to a victim base station, the device comprising: a first receiving means for receiving different measurement signals transmitted by different beams from the interfering base station within the interference measurement window, the measurement signals corresponding to the beams one-to-one, and the different beams being used for different directions; and a measuring means for measuring the CLI value of the beam corresponding to each of the measurement signals based on each of the measurement signals.

[0008] As a fifth aspect, an embodiment of the present application provides a crosslink interference measurement device applied to an interfering base station, wherein at least one measurement signal is configured in the interfering base station, and time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, and the measurement signals correspond one-to-one to beams, and the directions of different beams are different, and the device comprises: an acquiring means for acquiring second resource allocation information of the interfering base station, the second resource allocation information being used to indicate a time-frequency domain resource occupied by the at least one measurement signal; and a transmitting means adapted to transmit a measurement signal to the victim base station using a different beam based on the second resource allocation information.

[0009] In a sixth aspect, an embodiment of the present application provides a cross-link interference measurement device adapted to a controller, the device comprising: an acquiring means for acquiring second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, wherein the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to a beam one-to-one, and the directions of different beams are used differently; and a first transmitting means for transmitting the second allocation information to the victim base station, transmitting second resource allocation information of the interfering base station to each interfering base station, and transmitting first resource allocation information to the victim base station, wherein the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier of the first resource allocation information is used to have a one-to-one correspondence with the victim base station.

[0010] In a seventh aspect, an embodiment of the present application provides a base station comprising: a processor; a communication interface; a memory; and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is used to store a computer program; The processor, when executing the program stored in the memory, is used to implement the steps of any of the methods provided in the first or second aspect.

[0011] In an eighth aspect, an embodiment of the present application provides a controller including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is used to store a computer program; The processor, when executing the program stored in the memory, is used to implement the steps of any of the methods provided in the third aspect.

[0012] In a ninth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the steps of any of the methods provided in the first, second or third aspects.

[0013] In a tenth aspect, an embodiment of the present application provides a computer program product which, when run on a computer, causes the computer to perform the steps of any of the methods provided in the first, second or third aspects.

[0014] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit measurement signals to a victim base station, and the victim base station measures the different measurement signals within an interference measurement window to obtain CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, and the time-frequency resource scheduling between the base stations is coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. Furthermore, the victim base station only measures measurement signals corresponding to different beams within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy. [Brief explanation of the drawings]

[0015] The drawings described herein are provided for further understanding of the present application and constitute a part of the present application. The exemplary embodiments and the description thereof are for the purpose of illustrating the present application and are not to be construed as undue limitations on the present application.

[0016] [Figure 1] FIG. 1 is a schematic diagram of different base stations in a two-tier network structure. [Figure 2] FIG. 2 is a first flowchart of the CLI measurement method provided in the examples of the present application. [Figure 3] FIG. 3 is a schematic diagram of a two-layer network structure provided in an example of the present application. [Figure 4] FIG. 4 is a schematic diagram of an interferometric measurement window and an SSB beam arrangement provided in an embodiment of the present application. [Figure 5]FIG. 5 is a schematic diagram of an interference measurement window and an arrangement of CSI-RS beams provided in an embodiment of the present application. [Figure 6] FIG. 6 is a second flowchart of the CLI measurement method provided in the examples of the present application. [Figure 7] FIG. 7 is a third flowchart of the CLI measurement method provided in the examples of the present application. [Figure 8] FIG. 8 is a fourth flowchart of the CLI measurement method provided in the examples of the present application. [Figure 9] FIG. 9 is a first structural schematic diagram of a CLI measurement device provided in an embodiment of the present application. [Figure 10] FIG. 10 is a second structural schematic diagram of the CLI measurement device provided in the embodiment of the present application. [Figure 11] FIG. 11 is a schematic diagram of a third structure of the CLI measurement device provided in the embodiment of the present application. [Figure 12] FIG. 12 is a structural schematic diagram of a base station provided in an embodiment of the present application. [Figure 13] FIG. 13 is a structural schematic diagram of the controller provided in the embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0017] In order to clarify the purpose, technical solution and advantages of the present application, the present application will be described in more detail below by way of examples with reference to the drawings. Obviously, the described examples are only some of the examples of the present application, and not all of the examples. All other examples obtained by those skilled in the art based on the examples of the present application are also within the scope of protection of the present application.

[0018] The terms used in the examples of the present application will be explained below.

[0019] Macro base station: A large base station installed on a steel tower, which generally has three sectors, provides omnidirectional coverage, has high power, a wide coverage area, and can accommodate a large number of users.

[0020] Micro base station: A small base station installed in a building or in a densely populated area. This base station has a small volume, low power consumption, small coverage area, and a low user capacity.

[0021] Victim base station: A base station that is interfered with in a Flexible Time Division Duplex (F-TDD) communication system. In an embodiment of the present application, the victim base station may be the next generation node base station (gNB) or the evolved node base station (eNB), etc.

[0022] Aggressor base station: A base station that interferes with a victim base station in a Flexible Time Division Duplex (F-TDD) communication system. In an embodiment of the present application, the aggressor base station may be a gNB or an eNB, etc.

[0023] Currently, Time Division Duplex (TDD) communication systems operate in Half-Duplex (HD) mode. In HD mode, the frame structure is strictly divided into Down Link (DL) time slots, Up Link (UL) time slots, and Special (S) time slots, where S time slots can be used for DL, UL, or Guard Period (GP). To improve network throughput, 5G commercial networks typically allocate more DL time slots, which reduces UL time slots, limiting UL transmission speeds and increasing UL transmission delays, making it unsuitable for Ultra-Reliability Low Latency Communication (URLLC) tasks such as automatic control and control-to-control.

[0024] Flexible Time Division Duplex (F-TDD) communication systems are a viable technical solution to address these challenges. F-TDD, also known as dynamic TDD, allows for flexible allocation of UL and DL time slots according to DL service conditions, thereby meeting the dynamic demands of service and improving the performance of 5G-Adv communication systems. There are two typical network deployment scenarios for F-TDD communication systems: one is a single-tier network structure, in which all base stations in the network are the same type, such as macro or micro base stations; and the other is a two-tier network structure, in which the first tier is a macro base station, typically deployed outdoors, and the second tier is a micro base station, typically deployed indoors.

[0025] For single-tier networks, different base stations use flexible frame structures. For two-tier networks, macro base stations can be configured with a DL-dominated frame structure, for example, a five-timeslot frame structure of DDDSU, where D represents the DL time slot, S represents the special time slot, and U represents the UL time slot. Second-tier micro base stations can be configured with a flexible frame structure, for example, a five-timeslot frame structure of FFFFF, where F represents the flexible time slot. Second-tier micro base stations can also be configured with a UL-dominated frame structure, for example, a five-timeslot frame structure of DSUUU, where D represents the DL time slot, S represents the special time slot, and U represents the UL time slot.

[0026] Figure 1 shows a schematic diagram of different base stations in a two-tier network structure. Here, the base stations include gNB0 and gNB1. gNB0 is a macro base station, and the dashed circle indicates the coverage area of ​​gNB0. gNB1 is a micro base station, and the solid circle indicates the coverage area of ​​gNB1. In time slots #0 to #4, the frame structure of gNB0 is DDDSU, and the frame structure of gNB1 is DSUUU. As shown in Figure 1, in time slot #2, the transmission directions of the two base stations gNB0 and gNB1 are different. gNB0 transmits DL data to UE0, and gNB1 receives UL data from UE1. In this case, gNB0's DL transmission interferes with gNB1's UL reception, i.e., gNB-gNB CLI occurs, and UE1's UL transmission interferes with UE0's DL reception, i.e., UE-UE CLI occurs. Here, the degree of gNB-gNB CLI and UE-UE CLI interference varies depending on the beam direction.

[0027] The above two types of CLI affect the reception of base stations and UEs, reducing the received signal-to-noise ratio and increasing the error rate. As a result, this affects the overall performance of 5G-Adv communication systems. Therefore, appropriate technologies must be adopted to mitigate CLI in F-TDD communication systems and improve their performance. Coordinated scheduling between gNBs is a viable technology for mitigating CLI in F-TDD communication systems. However, coordinated scheduling requires the exchange of various system configuration information between gNBs, such as frame structure, bandwidth configuration, channel and signal configuration, and measurement reports of mutual interference between base stations.

[0028] To achieve cooperative scheduling between base stations, suppress CLI in different beam directions in an F-TDD communication system, and reduce the impact of CLI on the performance of a 5G-Adv communication system, an embodiment of the present application provides a CLI measurement method, in which an interfering base station transmits measurement signals to a victim base station using different beams, and the victim base station measures the measurement signals transmitted from the interfering base station and thereby estimates the CLI values ​​of the different beams. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, which supports time-frequency resource scheduling between base stations, suppresses CLI in the F-TDD communication system, and reduces the impact of CLI on the performance of a 5G-Adv communication system.

[0029] The CLI measurement method provided by the present invention will be described in detail below based on specific examples.

[0030] Referring to Figure 2, Figure 2 is a first flowchart of a CLI measurement method provided by an embodiment of the present application, which is applied to a victim base station, and the victim base station can correspond to one or more interfering base stations, that is, one or more interfering base stations interfere with the victim base station. The CLI measurement method includes the following steps:

[0031] Step S21: Receive different measurement signals transmitted by different beams from the interfering base stations within the interference measurement window, where the measurement signals correspond one-to-one to the beams, and the directions of the different beams are different.

[0032] Step S22: Based on each measurement signal, the CLI value of the beam corresponding to each measurement signal is measured.

[0033] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit measurement signals to a victim base station, and the victim base station measures the different measurement signals within an interference measurement window to obtain CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, and the time-frequency resource scheduling between the base stations is coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. Furthermore, the victim base station only measures measurement signals corresponding to different beams within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0034] In the above step S21, the measurement signal may be a specific signal transmitted from the interfering base station, or may be a non-specific signal transmitted from the interfering base station.

[0035] For example, the measurement signal may be a Synchronization Signal Block (SSB), which is a specific signal transmitted from an interfering base station and is a non-zero power signal. The measurement signal may also be a Channel State Information Reference Signal (CSI-RS), which is a non-specific signal transmitted from an interfering base station and is a non-zero power signal. The SSB has a one-to-one correspondence with a wide beam, i.e., the base station transmits the SSB using the wide beam. The CSI-RS has a one-to-one correspondence with a narrow beam, i.e., the base station transmits the SSB using the narrow beam. A plurality of narrow beams are included within the range of one wide beam. In the embodiment of the present application, the wide beam corresponding to the SSB is called an SSB beam, and the narrow beam corresponding to the CSI-RS is called a CSI-RS beam.

[0036] The locations of measurement signals (such as the above-mentioned SSB and CSI-RS) in different interfering base stations may be the same or different. If the measurement signals of each interfering base station are located in different time slots, the victim base station must perform CLI measurements in all time slots in which the measurement signals are located. This not only increases the complexity of the victim base station's interference measurement but also detracts from the victim base station's energy conservation. In the technical solution provided by the embodiments of the present application, an interference measurement window is configured in the victim base station, and the victim base station performs CLI measurements of beams only in the interference measurement window. This technique not only reduces the complexity of the victim base station's interference measurement but also saves the victim base station's energy.

[0037] To enable the victim base station to effectively complete the CLI measurement of the beam, the interfering base station may arrange its measurement signals within an interference measurement window and transmit the measurement signals within the interference measurement window, i.e., the interfering base station arranges one or more measurement signals, and the one or more measurement signals are included in the one or more measurement signals transmitted within the interference measurement window.

[0038] In practical applications, base stations can be divided into full-duplex base stations and half-duplex base stations. When the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots, i.e., an interference measurement window can be located at any position without any restrictions. When the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any one or more consecutive designated time slots, where the designated time slots are flexible time slots or the designated time slots are the uplink time slots of the victim base station and the downlink time slots of the interfering base station. When the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any one or more consecutive designated time slots, where the designated time slots are the downlink time slots of the interfering base station. When the victim base station is a half-duplex base station and the interfering base station is full-duplex base station, the interference measurement window occupies any one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the victim base station.

[0039] The interference measurement window may be one or more, i.e., one or more interference measurement windows may be configured in the victim base station, each with a unique identifier (ID). The enabled interference measurement window is used for CLI measurement, i.e., the victim base station measures the CLI value of the beam corresponding to each measurement signal based on the measurement signals received within the enabled interference measurement window. To control the interference measurement window enabled in the victim base station, a controller may be added to the F-TDD communication system, which completes the configuration and activation of the interference measurement window of the victim base station as shown in Figure 3, where the beam transmitting the signal is represented by an elongated elliptical pattern. However, the controller may be, but is not limited to, any base station in the F-TDD communication system, a central unit (CU) in the F-TDD communication system, or another device in the F-TDD communication system. The controller can complete the configuration of the interference measurement window via a loopback link (Xn interface or F1 interface) or over-the-air download technology (OTA) and exchange the necessary configuration information required by the victim base station and the interfering base station for CLI measurement, where the necessary configuration information includes, but is not limited to, frame structure configuration information, bandwidth part (BWP) configuration information, beam configuration information, CLI resource configuration information, CLI report configuration information, channel and signal time-frequency resource configuration information, power parameters, etc.The time-frequency resource allocation information of channels and signals may include SSB, CSI-RS, DL control channel (Physical Downlink Control Channel, PDCCH), DL shared channel (Physical Downlink Shared Channel, PDSCH) signal, UL control channel (Physical Uplink Control Channel, PUCCH) signal, UL shared channel (Physical Uplink Shared Channel, PUSCH), random access channel (Physical Random Access Channel, PRACH), sounding reference signal (SRS), etc.

[0040] In an embodiment of the present application, the controller can transmit interference measurement window configuration information to the victim base station. For ease of explanation and understanding, the interference measurement window configuration information is hereinafter abbreviated as second configuration information. After receiving the second configuration information, the victim base station can activate a default interference measurement window among all interference measurement windows based on the received second configuration information of the interference measurement windows, that is, enable the default interference measurement window among all interference measurement windows. Here, it is by default that the interference measurement window is the first interference measurement window configured in the victim base station or another designated interference measurement window. In an embodiment of the present application, the controller can also transmit interference measurement window configuration information to the interfering base station, and after receiving the second configuration information, the interfering base station can activate the default interference measurement window among the multiple interference measurement windows.

[0041] The controller transmits an active message, such as a second active message, to the victim base station, where the second active message includes an identifier of an interference measurement window waiting to be activated. After receiving the second active message from the controller, the victim base station disables the enabled interference measurement window when the next frame period arrives, and enables the interference measurement window waiting to be activated based on the second active message. As a result, the controller activates only one interference measurement window of the victim base station at a time, avoiding mutual interference between multiple interference measurement windows and improving the accuracy of CLI measurements of the beam. The controller may transmit the second active message to the interfering base station as described above to activate the required interference measurement window.

[0042] In addition, in an embodiment of the present application, when the controller configures the configuration information of the interference measurement window in the victim base station, the victim base station can activate a default interference measurement window, and if the activated interference measurement window needs to be changed, the controller sends a second activation message to the victim base station to change the activated interference measurement window, thereby activating only one interference measurement window after configuring the configuration information of the interference measurement window, thereby ensuring CLI measurement.

[0043] In an embodiment of the present application, the second configuration information of an interference measurement window indicates a time slot occupied by the interference measurement window, where the second configuration information of each interference measurement window includes one or more configuration parameters among a reference subcarrier space (SCS) of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period.

[0044] (1) The reference SCS of the interference measurement window is the fixed SCS or the SCS of the victim base station.

[0045] To avoid the SCS of the interfering base station and the victim base station being different, it is necessary to clarify the reference SCS of the interference measurement window. The reference SCS of the interference measurement window can be determined in the following two ways:

[0046] Method 1: The reference SCS is fixed to a certain SCS, i.e., the reference SCS is a fixed SCS. For example, Frequency Range (FR) 1 is fixed to 15 KHz, and FR2 is fixed to 60 KHz.

[0047] Scheme 2: The reference SCS is determined based on the SCS of the victim base station, i.e., the reference SCS may be the SCS of the victim base station. In this way, the victim base station and the interfering base station can determine other parameters such as the length, period, and offset of the interference measurement window according to their own SCS. In Scheme 2, the value of the reference SCS of the interference measurement window may be {15KHz, 30KHz, 60KHz, 120KHz}.

[0048] Compared with Scheme 2, Scheme 1 does not require the introduction of new configuration parameters, and if the frequency range is clear, the controller, interfering base station, and victim base station can clarify the reference SCS, but if the actual SCSs of the interfering base station and victim base station are different from the reference SCS, additional calculations will be required. In the embodiment of the present application, if the reference SCS is not configured, the victim base station can determine the reference SCS by default using Scheme 1, and if the configuration of the reference SCS is clear, the victim base station will determine the reference SCS using Scheme 2.

[0049] (2) The length of the interference measurement window is equal to or less than the frame period.

[0050] The length of the interference measurement window is directly related to the frame period, and the number of time slots in one frame period is determined once the reference SCS is determined. The maximum length of the interference measurement window does not exceed the frame period. For example, if the unit of the interference measurement window is time slots, the value of the length of the interference measurement window can be {1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160}.

[0051] For example, if the frame period is 20 time slots, the length of the interference measurement window is a maximum of 20 time slots, and if the frame period is 160 time slots, the length of the interference measurement window is a maximum of 160 time slots.

[0052] (3) The period of the interferometry window is an integer multiple of the frame period.

[0053] The period of the interference measurement window is directly related to the frame period, and can be an integer multiple of the frame period. For example, taking the unit of the interference measurement window as a time slot, the value of the period of the interference measurement window can be N*{1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160}, where N is a positive integer, for example, the value of N can be {1, 2, 4, 8}. Based on this, the maximum value of N is 8, and the maximum frame period is 160 time slots, so the period of the interference measurement window does not exceed 8*160=1280, that is, the value of the period of the interference measurement window can be {1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280}.

[0054] Considering that the maximum value of the SCS of the base station is 120KHz, at this time, each time slot occupies 0.125ms, so 0.125ms*1280=160ms, and as can be seen, the period of the interference measurement window does not exceed 160ms.

[0055] (4) The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0056] The above-mentioned interference measurement window offset amount is a specific offset amount of the interference measurement window within a frame period, and the offset amount of the interference measurement window is within the range of the frame period. For example, taking the unit of the interference measurement window as a time slot, within one frame period, the value of the interference measurement window offset amount can be {0, ..., 159}. In this case, the sum of the interference measurement window offset amount and the length of the interference measurement window may exceed the frame period, and the part of the interference measurement window that exceeds the frame period will be invalid, that is, the part of the interference measurement window that exceeds the frame period cannot be used for CLI measurement.

[0057] In order to improve the completeness and accuracy of the CLI measurement of the beam, within one frame period, the sum of the offset amount of the interferometry window and the length of the interferometry window does not exceed the last time slot within the frame period, i.e., the interferometry window does not exceed the last time slot within the frame period, i.e., the interferometry window is completely within one frame period, and the entire interferometry window can be used for CLI measurement.

[0058] The second arrangement information of the interference measurement window can also be converted into units of ms, and the arrangement unit can also be converted into ms according to the time length of the time slot in the reference SCS.

[0059] In an embodiment of the present application, the maximum number of interference measurement windows that can be configured for the victim base station may be 2, 4, 8, etc. When an activated interference measurement window needs to be updated, the controller can send an identifier of the interference measurement window that needs to be activated to the victim base station by an additional message such as the above-mentioned second active message, and the second active message becomes effective in the interference measurement window period next to the interference measurement window period for which the second active message is sent, i.e., becomes effective in the next frame period. In an embodiment of the present application, the controller can send second configuration information of the interference measurement window to the interfering base station and activate the interference measurement window that needs to be activated by the second active message, but is not limited to this.

[0060] For example, assume that the measurement signal is SSB, the victim base station and the interfering base station both have DFFFU frame structures, where D indicates the DL time slot, U indicates the UL time slot, and F indicates the flexible time slot. One base station is one cell, and the interference measurement window and SSB beam arrangement are shown in Figure 4. Figure 4 shows four cells: three interfering base station cells 1 to 3, and the victim base station cell 4. In cell 1, the SSB is arranged in the D time slot and the first F time slot. In cell 2, the SSB is arranged in the D time slot. In cell 3, the SSB is arranged in the D time slot, the first F time slot, and the second F time slot. Only a portion of the SSB beam is shown in Figure 4, as shown by the waterdrop-shaped pattern. In victim base station cell 4, the interference measurement window is arranged in the first F time slot and the second F time slot. This allows the victim base station to measure the CLI due to the SSB beam to the victim base station in Cell 1 and Cell 3 during the interference measurement window, while in Cell 2, since SSB is not allocated in the first F time slot and the second F time slot, the victim base station cannot measure the CLI due to the SSB beam to the victim base station in Cell 2 during the interference measurement window.

[0061] Because SSBs can only be placed in the first half of a frame within the SSB placement period, the interference measurement window may not completely cover all SSBs, such as the SSB for cell 2 in Figure 4. To enable the victim base station to measure all possible interfering beams, multiple CSI-RSs are placed in the interference measurement window, with each CSI-RS corresponding to a narrow beam, thereby achieving beam coverage. Regarding the mapping relationship between wide beams and narrow beams, multiple narrow beams are included within the range of a wide beam, e.g., 2, 4, or 8. The specific number of narrow beams and the corresponding time-domain resource allocation for the CSI-RSs can be determined by the controller based on the number of SSBs of the interfering base station and the position of the interference measurement window, in order to place the CSI-RSs in the interference measurement window and transmit specific allocation information to the interference measurement window. As shown in Figure 5, Figure 5 shows the placement of interference measurement windows and CSI-RS beams. Here, four CSI-RS beams are included within the range of each SSB beam, and each CSI-RS beam corresponds to one CSI-RS. Figure 5 also shows a portion of the CSI-RS beams, as shown in an elliptical pattern. The rectangular box with checkered hatching indicates the resource allocation of CSI-RS.

[0062] In embodiments of the present application, the time domain resources occupied by an SSB corresponding to one SSB beam may be the same as or different from the time domain resources occupied by CSI-RS corresponding to multiple CSI-RS beams within the SSB beam. The frequency domain resources occupied by an SSB corresponding to one SSB beam may be the same as or different from the frequency domain resources occupied by CSI-RS corresponding to multiple CSI-RS beams within the SSB beam. The time-frequency domain resources occupied by an SSB corresponding to one SSB beam are different from the time-frequency domain resources occupied by CSI-RS corresponding to multiple CSI-RS beams within the SSB beam.

[0063] In the embodiments of the present application, measurement signals (e.g., the above-mentioned SSB and CSI-RS) can be divided into measurement signals for CLI measurements and measurement signals for CLI beam management. Two measurement signals for different purposes can be set individually, with one measurement signal for CLI measurements and another measurement signal for CLI beam management. Two measurement signals for different purposes can also be set as the same measurement signal, and one measurement signal can be shared for both CLI measurements and CLI beam management. In the embodiments of the present application, two measurement signals for different purposes are collectively referred to as measurement signals.

[0064] The premise for performing CLI measurements between base stations is that configuration information synchronization between the base stations is completed. Among multiple base stations controlled by a single controller, there may be multiple interfering base stations and multiple victim base stations at the same time. The controller can configure the frequency domain resources occupied by the measurement signals at the interfering base stations. That is, it transmits measurement signal resource configuration information, such as the second resource configuration information of the interfering base station, to the interfering base stations. The second resource configuration information indicates the frequency domain resources occupied by each measurement signal of the interfering base station. The interfering base station can transmit measurement signals to the victim base station using different beams based on the second resource configuration information. At the same time, the controller can also inform the victim base station of the second resource configuration information of the interfering base station, thereby enabling subsequent beam CLI measurements to be performed.

[0065] The controller configures resource configuration information for CLI measurement, such as first resource configuration information, for each victim base station, where the first resource configuration information includes an ID of the first resource configuration information and second resource configuration information of each interfering base station, and the ID of the first resource configuration information corresponds one-to-one to the ID of the victim base station. The victim base station receives the first resource configuration information sent from the controller, and then completes CLI measurement of beams based on the first resource configuration information, obtains specific beam measurement results of beams corresponding to each measurement signal, and can restrict the beams that transmit data at the corresponding interfering base station.

[0066] The interfering base station may deploy one beam or multiple beams. The multiple beams may be wide beams or narrow beams, and the two types of beams may coexist. Therefore, the interfering base station may deploy SSB resources corresponding to the wide beam and CSI-RS resources corresponding to the narrow beam. The SSB resource deployment information is also called SSB beam resource deployment information, and the CSI-RS resource deployment information is also called CSI-RS beam resource deployment information.

[0067] Regarding wide beams, each wide beam corresponds to an SSB, and a wide beam is also called an SSB beam. To enable the victim base station to measure the CLI value due to the SSB beam of the interfering base station, resource allocation information of the SSB beam (such as the second resource allocation information) needs to be exchanged between different base stations. This exchange process can be performed by a controller, which transmits the resource allocation information of the SSB beam of each interfering base station to the victim base station.

[0068] The resource allocation information of the SSB beams of all interfering base stations configures one SSB allocation set. In an SSB allocation set, the resource allocation information of the SSB beams of one interfering base station can include the unique ID of the interfering base station and the allocation information of all SSBs of the interfering base station. The allocation information of each SSB can include the resource ID, period, and location of the time-frequency domain resource of the SSB. The SSB allocation information indicates the time-frequency domain resource occupied by each SSB.

[0069] The maximum number of SSB beam resource configuration information that can be configured in a single controller is the same as the maximum number of base stations that can be controlled by a single controller, and the value of the maximum number of SSB beam resource configuration information is determined according to the actual situation and can be configured to, for example, 16, 32, 64, etc. The maximum number of SSBs that can be configured in a single base station may be 64, 128, etc.

[0070] For narrow beams, the controller can configure a measurement signal corresponding to each narrow beam, so that the narrow beams and the measurement signals correspond one-to-one, where the signal for CLI measurement is the CSI-RS, which can be denoted as CLI-RS, and the narrow beam corresponding to each CLI-RS can be denoted as a CLI-RS beam. To distinguish from CSI-RS currently used for other purposes, in an embodiment of the present application, an indication parameter corresponding to CLI is introduced into the resource configuration information of the CLI-RS (e.g., the above-mentioned second resource configuration information), such as cli-info. If the resource configuration information of the CLI-RS includes an indication parameter corresponding to CLI, it indicates that the CLI-RS is used for CLI measurement of the corresponding beam.

[0071] In order for the victim base station to measure the CLI value of the CLI-RS beam of the interfering base station, it is necessary to exchange CLI-RS resource allocation information between different base stations. In practice, the controller transmits the CLI-RS resource allocation information of each interfering base station to the victim base station to complete the exchange of beam information such as resource allocation information between base stations.

[0072] The resource allocation information of the CLI-RS of each interfering base station may include a unique ID of the interfering base station, the allocation information of the CLI-RS of the interfering base station, etc. Here, the resource allocation information of the CLI-RS of the interfering base station may include the allocation information of all the CLI-RS of the interfering base station, and the allocation information of the CLI-RS may include a resource ID, period, type, power setting, time-frequency resource position, etc. of each CLI-RS.

[0073] The number of CLI-RS resource configuration information pieces configured in each interfering base station, the ID of each CLI-RS resource configuration information, etc. can be configured according to actual circumstances. For example, the maximum number of CLI-RS resource configuration information pieces that can be configured may be 16, 32, 64, etc. The CLI-RS resource configuration information may include multiple CLI-RS resource sets, each CLI-RS resource set including multiple CLI-RS resources, each with a unique ID. The configuration of CLI-RS resource sets and CLI-RS resources may refer to the configuration of CSI-RS resources in current 5G communication systems, except that the above-described specification parameter cli-info must be additionally introduced into the CSI-RS resource set to indicate that the CSI-RS resource set is used for beam CLI measurement. The signal type of the CSI-RS for beam CLI measurement may be periodic, aperiodic, or semi-persistent configuration.

[0074] The interfering base station transmits measurement signals using different beams based on the second resource allocation information. The victim base station receives at least one measurement signal transmitted from the interfering base station within the interference measurement window, and further performs step S22 to measure measurement signals such as SSB or CLI-RS within the interference measurement window to obtain CLI values ​​of different beams between the interfering base station and the victim base station, i.e., obtain a respective CLI value for each beam. In the embodiment of the present application, the CLI value can be determined based on, but is not limited to, Reference Signal Received Power (SS-RSRP) or Received Signal Strength Indicator (RSSI).

[0075] Step S22 will be explained using an SSB beam and a CLI-RS beam as examples.

[0076] For an SSB beam and an SSB corresponding to the SSB beam, the victim base station measures the RSRP of each SSB of the interfering base station based on the Secondary Synchronization Signals (SSS) of each SSB of the interfering base station within the interference measurement window, which can be denoted as CLI-SSB-RSRP. For each SSB, the victim base station stores the base station ID, SSB index, and CLI-SSB-RSRP corresponding to that SSB. The SSB index can refer to the resource ID of the SSB.

[0077] For a CLI-RS corresponding to a CLI-RS beam, the victim base station measures the RSRP of each CLI-RS of the interfering base station within the interference measurement window, denoted as CLI-RSRP. For each CLI-RS, the victim base station stores the base station ID, CLI-RS index, and CLI-RSRP corresponding to that CLI-RS. The CLI-RS index can be determined by the ID of the resource configuration information of the CLI-RS + the ID of the CSI-RS resource set + the resource ID of the CSI-RS. In an embodiment of the present application, multiple resource configuration information of the CLI-RS can be configured in one base station, where each resource configuration information of the CLI-RS corresponds to multiple CSI-RS resource sets, and each CSI-RS resource set corresponds to multiple CSI-RSs.

[0078] The victim base station can divide the beam measurement results of all SSB beams and CLI-RS beams obtained by measurement, for example, the CLI-SSB-RSRP and CLI-RSRP, into short-term (ST) CLI values ​​and long-term (LT) CLI values. The short-term CLI values ​​are the CLI-SSB-RSRP and CLI-RSRP obtained for each CLI measurement described above. In other words, the victim base station can measure the current RSRP of each measurement signal and use it as the CLI value of the beam corresponding to each measurement signal, i.e., the short-term CLI value of the beam corresponding to each measurement signal.

[0079] The long-term CLI value is a CLI value obtained by the victim base station by filtering or arithmetically averaging the short-term CLI values ​​within a long period of time. That is, the victim base station can measure the current RSRP of each measurement signal and update the long-term CLI value of the beam corresponding to each measurement signal based on the current RSRP and historical RSRP of each measurement signal. Here, the historical RSRP may be the long-term CLI value obtained in the previous measurement. The victim base station can calculate the long-term CLI value using the following equation (1):

[0080] [Formula 1]

number

[0081] In equation (1), RSRP Avg (t) represents the long-term CLI value at the current time t, and RSRPA Ins (t) represents the current RSRP, i.e., the RSRP at the current time t, and RSRP Avg (t-1) represents the historical RSRP, i.e., the long-term CLI value obtained at the previous time t-1, and γ represents the filter coefficient, whose value ranges from [0, ..., 1]. The value of γ can be selected according to the actual situation. Avg The initial value of can be set according to the actual traffic and environment, e.g., RSRP Avg The initial value of is set to 0 by default.

[0082] In the embodiment of the present application, the historical RSRP may be, but is not limited to, the short-term CLI value obtained at each time point before the current time point. In this case, the victim base station can calculate the long-term CLI value using the following formula (2):

[0083] [Formula 2]

number

[0084] In equation (2), RSRP Avg(t) represents the long-term CLI value at the current time t, and RSRP Ins (t) represents the current RSRP, i.e., the RSRP at the current time t, and RSRP Ins (ti) represents the historical RSRP, i.e., the RSRP at time ti, also called the short-term CLI value at time ti, where i=1, ..., N-1, and N represents the total number of acquired short-term CLI values.

[0085] The long-term CLI value can also be calculated by the controller, which calculates it using equation (1) or (2) based on the historical RSRP and the short-term CLI value reported from the victim base station.

[0086] In an embodiment of the present application, the specific CLI value to be acquired and the CLI value to be reported to the controller can be transmitted by the controller to the victim base station via reporting configuration information in the beam measurement results.

[0087] In some embodiments, the present application provides a method for CLI interference measurement applied to a victim base station, as shown in FIG. 6, which may include the following steps:

[0088] Step S61: receive different measurement signals transmitted by different beams from the interfering base station within the interference measurement window, and the measurement signals correspond to the beams one-to-one, and the different beams have different directions. This is the same as step S21.

[0089] Step S62: Measure the CLI value of the beam corresponding to each measurement signal based on each measurement signal, which is the same as step S22 above.

[0090] Step S63: Generate beam measurement results based on the respective CLI values ​​of each beam.

[0091] Step S64: The beam measurement results are sent to the controller.

[0092] In the technical solution provided by the embodiments of the present application, the victim base station can measure the CLI value of each beam, and then generate corresponding beam measurement results according to the report configuration information configured by the controller, and transmit the beam measurement results to the controller. Then, the controller can perform cooperative scheduling between the interfering base station and the victim base station based on the beam measurement results, i.e., schedule time-frequency domain resources between the interfering base station and the victim base station, for example, suspend the transmission of the downlink channel or signal of the interfering base station, reduce the transmission power of the downlink channel or signal, or notify the victim base station to suspend UL scheduling, thereby solving the problem that the interfering base station and the victim base station cannot independently complete cooperative scheduling.

[0093] In the above step S63, after performing CLI measurement and measuring the short-term CLI value or long-term CLI value of each beam, the victim base station generates beam measurement results according to the report type in the report configuration information.

[0094] The reporting type in the reporting configuration information can use the following methods.

[0095] Method 1: Full reporting. That is, the victim base station reports the beam measurement results of all beams to the controller. In this case, the beam measurement results include the identifier of the interfering base station, the respective identifiers of each measurement signal, and the CLI values ​​of the beams corresponding to each measurement signal. For example, the beam measurement results may be {base station 1, measurement signal 1, CLI value 1 of the beam corresponding to measurement signal 1}, {base station 1, measurement signal 2, CLI value 2 of the beam corresponding to measurement signal 2}, {base station 2, measurement signal 1, CLI value 1 of the beam corresponding to measurement signal 1}, and {base station 2, measurement signal 2, CLI value 2 of the beam corresponding to measurement signal 2}.

[0096] In this case, the controller makes a determination based on the respective CLI values ​​of each beam of each interfering base station, and determines the required beams and recommended beams to be restricted at each interfering base station.

[0097] In an embodiment of the present application, there may be multiple victim base stations, and the beam measurement results may further include the ID of the victim base station in order to determine the beam measurement results of each victim base station and perform accurate cooperative scheduling.

[0098] Method 2: Partial reporting. If the RSRP of a measurement signal is greater than the first preset CLI threshold, the beam corresponding to the measurement signal is a restricted beam, and the beam corresponding to the measurement signal interferes with the victim base station. For ease of distinction and understanding, in this embodiment, the restricted beam corresponding to the measurement signal whose RSRP is greater than the first preset CLI threshold is referred to as the first restricted beam, and the victim base station generates a beam measurement result for the first restricted beam. If the RSRP of a measurement signal is less than the second preset CLI threshold, the beam corresponding to the measurement signal is a recommended beam. For ease of distinction and understanding, in this embodiment, the recommended beam corresponding to the measurement signal whose RSRP is less than the second preset CLI threshold is referred to as the first recommended beam, and the victim base station generates a beam measurement result for the first recommended beam. That is, if a first restricted beam or a first recommended beam exists among all beams used by the interfering base station, a beam measurement result for the first restricted beam or the first recommended beam is generated, and the beam measurement result for the first restricted beam or the first recommended beam is reported. The RSRP of the measurement signal is the CLI value of the beam corresponding to the measurement signal.

[0099] When a partial reporting method is adopted, the beam measurement results may include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list. The first restricted beam list includes a measurement signal identifier corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams. The first recommended beam list includes a measurement signal identifier corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams. The first restricted beam (forbidden beam) is a beam whose CLI value is greater than a first preset CLI threshold. The first restricted beam causes serious interference to the victim base station's reception, so the victim base station suggests that the interfering base station avoid using the beam. The first recommended beam (preferred beam) is a beam whose CLI value is less than a second preset CLI threshold. The first preset CLI threshold and the second preset CLI threshold can be set according to actual needs. Here, the identifier of the interfering base station, the first restricted beam list, and the first recommended beam list have a corresponding relationship, for example, one identifier of the interfering base station corresponds to one first restricted beam list and one first recommended beam list, thereby facilitating quick and accurate determination of the required beams and recommended beams restricted by each interfering base station. For example, the beam measurement result includes {interfering base station identifier 1, first restricted beam list 1, first recommended beam list 1}, {interfering base station identifier 2, first restricted beam list 2, first recommended beam list 2}, etc.

[0100] When a partial reporting method is adopted, the beam measurement result can include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, where the first restricted beam list includes identifiers of measurement signals corresponding to each of the first restricted beams, and the first recommended beam list includes identifiers of measurement signals corresponding to each of the first recommended beams. Here, the victim base station reduces the information reported to the controller and saves bandwidth resources. Here, there is a correspondence between the identifier of the interfering base station, the first restricted beam list, and the first recommended beam list. For example, the beam measurement result can include {interfering base station identifier 1, first restricted beam list 1, first recommended beam list 1}, {interfering base station identifier 2, first restricted beam list 2, first recommended beam list 2}, etc.

[0101] The identifier of the measurement signal can be determined based on the type of the measurement signal, for example, if the measurement signal is an SSB, the identifier of the measurement signal can refer to the above SSB index, and the identifier of the interfering base station and the SSB index can be combined to uniquely determine the SSB and further uniquely determine the corresponding wide beam. If the measurement signal is a CLI-RS, the identifier of the measurement signal can refer to the above CLI-RS index, and the identifier of the interfering base station and the CLI-RS index can be combined to uniquely determine the CLI-RS and further uniquely determine the corresponding narrow beam.

[0102] In the first method, reporting all the beam measurement results occupies a large amount of bandwidth resources, whereas the second method can save bandwidth resources. In practice, whether the beam measurement results reported by the victim base station include ST CLI values ​​or LT CLI values, and whether to report all or part of them can be configured by the controller.

[0103] The controller may configure the same reporting type for all base stations under its control, or may configure different reporting types. If the LI CLI value is calculated by the controller, the controller must configure the reporting type of the victim base station so that the beam measurement results include the ST CLI value and full reporting, and other cases are not limited. In practice, to reduce the complexity of the controller, all base stations under the controller use the same reporting type. For example, the reporting type used by all base stations under the controller is to include the ST CLI value in the beam measurement results and full reporting.

[0104] In an embodiment of the present application, when the report type of the victim base station is full report, the beam measurement results may include an SSB beam list and a CLI-RS beam list, where the SSB beam list may include a measurement signal identifier corresponding to each SSB beam and a CLI value for each SSB beam, and the CLI-RS beam list may include a measurement signal identifier corresponding to each CLI-RS beam and a CLI value for each CLI-RS beam. The SSB beam list and the CLI-RS beam list include a measurement signal identifier corresponding to each of all beams of the interfering base station and a CLI value for each beam.

[0105] If the report type of the victim base station is partial reporting, in the beam measurement results, the first restricted beam list is divided into a restricted SSB beam list and a restricted CLI-RS beam list, and the first recommended beam list is divided into a recommended SSB beam list and a recommended CLI-RS beam list. The restricted SSB beam list includes measurement signal identifiers corresponding to SSB beams that need to be restricted and the CLI values ​​of those SSB beams, the restricted CLI-RS beam list includes measurement signal identifiers corresponding to CLI-RS beams that need to be restricted and the CLI values ​​of those CLI-RS beams, the recommended SSB beam list includes measurement signal identifiers corresponding to recommended SSB beams that need to be restricted and the CLI values ​​of those SSB beams, and the recommended CLI-RS beam list includes measurement signal identifiers corresponding to CLI-RS beams that need to be recommended and the CLI values ​​of those CLI-RS beams.

[0106] In an embodiment of the present application, if the report type of the victim base station does not match the list included in the configured beam measurement results, the victim base station does not need to report the beam measurement results to the controller. For example, if the configured beam measurement results include an SSB beam list and a CLI-RS beam list and the report type is partial report, the victim base station does not report the beam measurement results to the controller.

[0107] After obtaining the beam measurement results, the victim base station executes step S64, and then reports the beam measurement results to the controller for cooperative scheduling.

[0108] The reporting of beam measurement results may be periodic or event-triggered.

[0109] In the case of periodic reporting, beam measurement results are reported from the victim base station to the controller according to a certain configured reporting period (i.e., a preset reporting period), i.e., the latest beam measurement results are sent to the controller according to the preset reporting period. Here, the unit of the preset reporting period is the same as the unit of the interference measurement window, the preset reporting period is equal to or greater than the period of the actually used interference measurement window, and the maximum value of the preset reporting period does not exceed the maximum configurable period of the interference measurement window, i.e., the preset reporting period is equal to or less than the maximum configurable period of the interference measurement window. If the preset reporting period is greater than the period of the interference measurement window, the victim base station reports the latest beam measurement results.

[0110] In the case of event-triggered reporting, when a preset trigger condition is satisfied, the victim base station reports the beam measurement result to the controller. Here, the preset trigger condition is that the first restricted beam among the beams corresponding to at least one measurement signal changes and / or the first recommended beam changes. That is, the preset trigger condition is that the identifier of the measurement signal included in the first restricted beam list at the current time is not completely the same as the identifier of the measurement signal included in the first restricted beam list previously reported to the controller, or that the identifier of the measurement signal included in the first recommended beam list at the current time is not completely the same as the identifier of the measurement signal included in the first recommended beam list previously reported to the controller.

[0111] For periodic measurement signals, the reporting manner of the corresponding beam measurement results may be periodic reporting or event-triggered reporting. For aperiodic or semi-persistent measurement signals, the reporting manner of the corresponding beam measurement results may be event-triggered reporting.

[0112] In the embodiment of the present application, there may be multiple victim base stations, and in order to determine the CLI measurement results of each victim base station and perform accurate cooperative scheduling, the beam measurement results may also include the ID of the victim base station, which has a one-to-one correspondence with the identifier of the first resource configuration information.

[0113] After receiving the beam measurement results of the CLI measurements transmitted from each victim base station, the controller can determine the beam measurement results of different beams of different victim base stations based on the identifier of the interfering base station, the identifier of the measurement signal, the identifier of the victim base station, etc. in the beam measurement results.

[0114] The controller performs cooperative scheduling based on beam measurements of different beams of different victim base stations.

[0115] In the cooperative scheduling process, after the controller receives beam measurement results reported from each victim base station, it determines a set of all beam measurement results for each interfering base station that interfere with other base stations, and then transmits beam information corresponding to each measurement signal in the beam measurement result set to each interfering base station. Based on this beam information, the interfering base station avoids scheduling downlink transmissions on the interfering beams as much as possible. The victim base station can schedule uplink transmissions on the interfering beams based on the determined first restricted beam and first recommended beam. The beam measurement result set includes a second restricted beam list and a second recommended beam list, where the second restricted beam is a beam waiting to be restricted and the second recommended beam is a beam waiting to be recommended. The beam information may include an index of the measurement signal corresponding to the beam and an identifier of the interfering base station, etc.

[0116] The beam measurement results reported from the victim base station include beam measurement results of different beams of different interfering base stations. For a certain interfering base station, its beam measurement results are from different victim base stations. The controller can aggregate all the beam measurement results reported from each victim base station and distinguish the beam measurement results of different interfering base stations to perform unified cooperative scheduling.

[0117] For all beam measurement results of an interfering base station, the controller determines which beam of the interfering base station interferes with other base stations based on the correspondence between these beams and measurement signals. Whether the interfering beam is determined based on the ST CLI value or the LT CLI value can be determined by the controller. The interfering beam is a beam that interferes with other base stations, and the interfering beam may be the first restricted beam or the second restricted beam.

[0118] If the LT CLI value is required and the victim base station reports the ST CLI value, the controller can calculate the LT CLI value from the ST CLI value according to the above formula (1). If the controller configures the victim base station and reports the LT CLI value, the controller cannot use the ST CLI value to determine the interfering beam of the interfering base station, i.e., the second restricted beam. In addition, the determination of the interfering beam of the interfering base station can also be determined based on the report type of the victim base station as follows:

[0119] A. The reporting type for the victim base station is to report all.

[0120] When the reporting method of the beam measurement results is to report all, the controller can determine the interfering beams and the non-interfering beams, that is, the second restricted beams and the second recommended beams.

[0121] The controller and the victim base station use the same method for determining the second restricted beam and the second recommended beam. The first and second preset CLI thresholds of the controller and the victim base station can be configured as preset fixed values ​​or can be determined based on the algorithms of the controller and the victim base station themselves, and are not particularly limited.

[0122] B. The report type of the victim base station is partial report.

[0123] When the reporting method of the beam measurement results is partial reporting, the controller can determine the second restricted beam and the second recommended beam of the interfering base station using the first restricted beam and the first recommended beam reported from the victim base station.

[0124] The second restricted beam and the second recommended beam can include an SSB beam and a CLI-RS beam, where the SSB beam has a one-to-one correspondence with the SSB resource and the CLI-RS beam has a one-to-one correspondence with the CSI-RS resource. In practice, a beam of an interfering base station is the first restricted beam for the victim base station and the first recommended beam for the other victim base station, and since the restricted beam has a higher priority, the beam is considered to be the second restricted beam.

[0125] For example, if the victim base station uses partial reporting and the beam measurement results include a first restricted beam list and a first recommended beam list, a measurement signal whose identifier is included in any of the first restricted beam lists is referred to as a first measurement signal, and a measurement signal whose identifier is included in any of the first recommended beam lists is referred to as a second measurement signal. The controller can determine the beam corresponding to each of the first measurement signals as a second restricted beam of the interfering base station transmitting the first measurement signal, and determine the beam corresponding to each of the second measurement signals as a second recommended beam of the interfering base station transmitting the second measurement signal.

[0126] When the victim base station reports all the beams, if the beam measurement results do not include the first restricted beam list and the first recommended beam list, for one measurement signal, each beam measurement result includes a CLI value of the measurement signal, that is, for one measurement signal, multiple CLI values ​​of the measurement signal can be obtained from multiple beam measurement results. The controller can determine the second restricted beam and the second recommended beam of the interfering base station based on the CLI values ​​included in each beam measurement result, specifically: The controller determines, when any target CLI value of a measurement signal is greater than a first preset CLI threshold, that the beam corresponding to the measurement signal is a second restricted beam of the interfering base station transmitting the measurement signal.The controller determines, when all target CLI values ​​of a measurement signal are less than or equal to the first preset CLI threshold and any target CLI value of the measurement signal is less than a second preset CLI threshold, that the beam corresponding to the measurement signal is a second recommended beam of the interfering base station transmitting the measurement signal.

[0127] Here, if the CLI value included in the beam measurement result is the current RSRP of the measurement signal, i.e., if the CLI value included in the beam measurement result is a short-term CLI value, the target CLI value can be the current RSRP included in the beam measurement result, i.e., the target CLI value can be the short-term CLI value, or the target CLI value can be an RSRP determined based on the current RSRP and historical RSRP included in the beam measurement result, i.e., the target CLI value can be a long-term CLI value. If the CLI value included in the beam measurement result is an RSRP determined based on the current RSRP and historical RSRP, i.e., the CLI value included in the beam measurement result is a long-term CLI value, the target CLI value is the RSRP included in the beam measurement result, i.e., the target CLI value is the CLI value included in the beam measurement result, i.e., the target CLI value is the long-term CLI value.

[0128] After determining the second restricted beam and the second recommended beam, the controller transmits beam information of the second restricted beam and the second recommended beam to the interfering base station. If the interfering base station does not have the second restricted beam and the second recommended beam, the controller does not need to transmit the beam information to the interfering base station.

[0129] After receiving the beam information of the second restricted beam and the second recommended beam, the interfering base station restricts the second restricted beam, for example, restricting data transmission to the user equipment using a beam in the same direction as the second restricted beam. In this embodiment, the second restricted beam does not restrict the measurement signal, but only restricts data transmission other than the measurement signal, thereby preventing the victim base station from being unable to perform normal CLI measurement.

[0130] In an embodiment of the present application, all beams of a single interfering base station may interfere with other base stations. Therefore, if the interfering base station restricts scheduling on these beams, the interfering base station will not have data transmission, which will affect the performance of the interfering base station. To avoid this situation, the controller sets an upper limit on the number of second-restricted beams, thereby preventing all beams of the interfering base station from being set as second-restricted beams. The number of second-restricted beams is set at a certain ratio according to the total number of beams of the interfering base station. For example, in the interfering base station, the ratio of the second-restricted beams to all beams of the interfering base station is smaller than a preset ratio. The preset ratio can be set according to actual needs, for example, the preset ratio can be {10%, 20%, 30%, 50%, ..., 90%}. Furthermore, the number of times the second-restricted beam is restricted is greater than the number of times other beams of the interfering base station are restricted. That is, the second-restricted beam can be selected in order of the number of times the beam is determined as the second-restricted beam, from the most to the least. This can maximize CLI suppression.

[0131] On the other hand, in reality, some users may be semi-stationary users who do not move for a long time, and restricting the beams for these users for a long time will affect their normal data transmission. In this case, the controller can configure a restriction window, where the restriction window in the interfering base station is a window restricting the second restricted beam, and in the victim base station, the restriction window is a window restricting the beam that is the same as the pointing area of ​​the first restricted beam. Specifically, within the restriction window, the interfering base station is restricted from transmitting data using the second restricted beam, but is not restricted from receiving data using the beam that is the same as the pointing area of ​​the first restricted beam. Outside the restriction window, the interfering base station is not restricted from transmitting data using the second restricted beam, but is restricted from receiving data using the beam that is the same as the pointing area of ​​the first restricted beam.

[0132] In Figure 3, beam 1 and beam 2 both refer to the area where device UE0 is located, and when beam 1 is determined as the first restricted beam by gNB1 and as the second restricted beam by the controller, within the enabled restriction window, gNB0 is restricted from transmitting data using beam 1, and gNB1 is not restricted from receiving data using beam 2. Outside the enabled restriction window, gNB0 is not restricted from transmitting data using beam 1, and gNB1 is restricted from receiving data using beam 2.

[0133] In some embodiments, the controller transmits an active message, such as a first active message, to the victim base station, the first active message including an identifier of a restricted window awaiting activation, the restricted window awaiting activation being a window restricting a beam identical to the directional area of ​​the first restricted beam. After receiving the first active message transmitted from the controller, the victim base station disables the enabled restricted window upon reaching the next frame period, and enables the restricted window awaiting activation based on the first active message. The victim base station can receive data transmitted from the user equipment using a beam in any direction within the enabled restricted window. The victim base station is restricted from receiving data transmitted from the user equipment using a beam identical to the directional area of ​​the first restricted beam outside the enabled restricted window, thereby reducing the impact of CLI.

[0134] The controller transmits an active message, such as a third active message, to the victim base station, where the third active message includes an identifier of a restricted window awaiting activation, where the restricted window awaiting activation is a window restricting the second restricted beam. After receiving the third active message from the controller, the interfering base station disables the enabled restricted window when the next frame period arrives and enables the restricted window awaiting activation based on the third active message. The interfering base station is restricted from transmitting data to the user equipment using the second restricted beam within the enabled restricted window, but can transmit data to the user equipment using the second recommended beam, thereby reducing the impact of CLI. Outside the enabled restricted window, the interfering base station can transmit data to the user equipment using a beam in any direction, thereby ensuring the performance of the interfering base station to some extent.

[0135] Here, there may be one or more restriction windows, each with a unique ID. Only one restriction window may be activated at the same time, i.e., only one restriction window may be enabled at the same time, and the enabled restriction window may be used to restrict beams. The controller may transmit first configuration information for the multiple restriction windows to the interfering base station or the victim base station. To ensure communication quality, after receiving the first configuration information for the restriction windows, the interfering base station and the victim base station may enable a default restriction window among all restriction windows based on the received first configuration information for the restriction windows, where the first configuration information indicates the time slot occupied by the restriction window. Here, the default restriction window may be the first restriction window configured. If a restriction window needs to be adjusted, the controller may send a first active message to the victim base station and a third active message to the interfering base station. In this embodiment, to save resources at the interfering base station and the victim base station, the interfering base station and the victim base station may enable the corresponding restriction window after receiving the first active message or the third active message. At the same time, the interfering base station and the victim base station start restricting the beams they use after the restriction window is enabled.

[0136] In this way, the controller activates only one restriction window at a time, avoiding restricting data transmission for too long and affecting data transmission. In addition, in an embodiment of the present application, after the controller configures restriction window configuration information in the interfering base station and the victim base station, the interfering base station and the victim base station can activate default restriction windows, and if the activated restriction window needs to be changed, the controller sends an activation message to the interfering base station and the victim base station to change the activated restriction window. As can be seen, after the interfering base station and the victim base station configure the restriction window configuration information, they activate one restriction window to ensure data transmission.

[0137] In an embodiment of the present application, the configuration information of the restriction window indicates the time slot occupied by the restriction window. For ease of explanation and understanding, the configuration information of the interference measurement window will be abbreviated as second configuration information hereinafter. In an embodiment of the present application, if the controller cannot determine configuration information that matches the restriction window, the controller can include first configuration information of the necessary restriction window waiting to be activated in the first active message and the third active message. Based on the first configuration information of the restriction window waiting to be activated, when the next frame period arrives, the interfering base station and the victim base station activate the restriction window waiting to be activated in the time slot indicated by the first configuration information of the restriction window waiting to be activated. The first configuration information includes one or more configuration parameters including the reference SCS of the restriction window, the length of the restriction window, the period of the restriction window, and the offset amount of the restriction window within one frame period.

[0138] (1) The reference SCS of the restriction window can be the SCS of the interfering base station, and no additional configuration is required.

[0139] (2) The length of the bounding window is less than or equal to the frame period.

[0140] The length of the bounded window is directly related to the frame period. The number of time slots in one frame period is determined by determining the reference SCS. The maximum bounded window does not exceed the frame period. For example, if the unit of the bounded window is a time slot, the value of the bounded window length can be {1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160}.

[0141] For example, if the frame period is 20 time slots, the length of the bounded window is a maximum of 20 time slots, and if the frame period is 160 time slots, the length of the bounded window is a maximum of 160 time slots.

[0142] (3) The period of the limiting window is an integer multiple of the frame period.

[0143] The period of the limiting window is directly related to the frame period, and can be an integer multiple of the frame period. For example, if the unit of the limiting window is a time slot, the value of the period of the limiting window can be N*{1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160}, where N is a positive integer, for example, the value of N can be {1, 2, 4, 8}. Based on this, the maximum value of N is 8, and the maximum value of the frame period is 160 time slots, so the period of the limiting window does not exceed 8*160=1280, that is, the value of the period of the limiting window can be {1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280}.

[0144] Considering that the maximum value of the SCS of the base station is 120KHz, at this time, each time slot occupies 0.125ms, so 0.125ms*1280=160ms, and as can be seen, the period of the restriction window does not exceed 160ms.

[0145] (4) The offset of the limiting window within one frame period does not exceed the last time slot within the frame period.

[0146] The above-mentioned constraint window offset amount is a specific offset amount of the constraint window within a frame period, and the constraint window offset amount is within the range of the frame period. For example, taking the constraint window unit as a time slot, within one frame period, the constraint window offset amount may be {0, ..., 159}. In this case, the sum of the constraint window offset amount and the constraint window length may exceed the frame period, and the part of the constraint window that exceeds the frame period will be invalid, that is, the part of the constraint window that exceeds the frame period cannot be used to constrain the beam.

[0147] To improve the efficiency of beam limitation, within one frame period, the sum of the offset amount of the limitation window and the length of the limitation window does not exceed the last time slot in the frame period, i.e., the limitation window does not exceed the last time slot in the frame period, i.e., the limitation window is completely within one frame period, and the entire limitation window can be used to limit receiving or transmitting data using the second limitation beam.

[0148] The unit of the first configuration information of the restriction window can also be converted into ms, and the unit of the configuration can also be converted into ms according to the time length of the time slot in the SCS of the interfering base station.

[0149] In an embodiment of the present application, the maximum number of restriction windows that can be configured may be 2, 4, 8, etc. When a restriction window is configured, the controller configures at least one restriction window. When multiple restriction windows are configured, the first restriction window is activated and configured by default, i.e., the first restriction window is the activated restriction window by default. When an activated restriction window needs to be updated, the controller can transmit an identifier of the restriction window waiting to be activated to the interfering base station via additional information such as the third active message, and can transmit an identifier of the restriction window waiting to be activated to the victim base station via additional information such as the first active message.

[0150] By the time the victim base station returns the beam measurement result, the controller can configure all restriction windows for each interfering base station, and after receiving the beam measurement result returned from the victim base station, select and activate one appropriate restriction window from all the restriction windows based on the beam measurement result. If there is no appropriate restriction window, the controller can additionally configure a new restriction window for the interfering base station and simultaneously activate the restriction window. After receiving the beam measurement result returned from the victim base station, the controller can also configure a restriction window for the interfering base station and simultaneously activate the restriction window.

[0151] For beam configuration information such as the restriction window configuration information, the second restriction beam, and the second recommended beam, the controller can transmit the beam configuration information of each interfering base station to the corresponding interfering base station. Based on the configuration information of the second restriction beam, the second recommended beam, and the restriction window in the beam configuration information, the interfering base station avoids transmitting data using the second restriction beam in the enabled restriction window and transmits data using the second recommended beam as much as possible.

[0152] A victim base station can receive data by scheduling a beam in any direction within the enabled restriction window of an interfering base station, and avoids receiving data or does not schedule data using a beam that is the same as the directional area of ​​the first restricted beam of the interfering base station outside the enabled restriction window.

[0153] The technical solution provided by the embodiments of the present application relates to beam-based CLI measurement, reporting, and cooperative scheduling in a 5G-Adv communication system, i.e., to performing beam measurement, reporting, and cooperative scheduling between base stations using measurement signals corresponding to beams. After the controller configures the measurement signals and interference measurement windows, the victim base station receives the measurement signals within the interference measurement windows, measures the CLI values ​​of the beams corresponding to the measurement signals, and reports the CLI values ​​to the controller, enabling the victim base station to effectively perform CLI measurements. The controller aggregates all the reported CLI values ​​and determines a second restricted beam, a second recommended beam, and a restricted window, thereby coordinating scheduling between the interfering base station and the victim base station. The above technology utilizes cooperative scheduling between base stations to avoid or mitigate CLI and improve the overall performance of the F-TDD communication system.

[0154] Corresponding to the above-mentioned CLI measurement method applied to a victim base station, an embodiment of the present application provides a CLI measurement method applied to an interfering base station, in which at least one measurement signal is configured in the interfering base station, the time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, the measurement signals correspond one-to-one to beams, and different beams have different directions. As shown in Figure 7, the method includes the following steps: Step S71: Obtain second resource allocation information of an interfering base station, where the second resource allocation information indicates a time-frequency domain resource occupied by at least one measurement signal. Step S72: Transmit a measurement signal to the victim base station using a different beam based on the second resource allocation information.

[0155] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit measurement signals to a victim base station, and the victim base station measures the different measurement signals within an interference measurement window to obtain CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, and the time-frequency resource scheduling between the base stations is coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. Furthermore, the victim base station only measures measurement signals corresponding to different beams within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0156] In some embodiments, the step of obtaining the second resource allocation information of the interfering base station in the above step S71 may be receiving the second resource allocation information of the interfering base station sent from the controller.

[0157] In the embodiment of the present application, when performing CLI measurement, if the interfering base station is configured with second resource allocation information, the interfering base station can obtain the second resource allocation information locally stored in the interfering base station.If the interfering base station is not configured with second resource allocation information, the interfering base station can obtain the second resource allocation information from the controller, and CLI measurement is guaranteed.

[0158] In some embodiments, all measurement signals transmitted from an interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0159] In some embodiments, the second resource allocation information of the interfering base station includes an indication parameter corresponding to the CSI-RS, where the indication parameter indicates that the CSI-RS is to be used for CLI measurement.

[0160] In some embodiments, the method for measuring CLI comprises: receiving a beam measurement result set of CLI measurements by each victim base station transmitted from the controller, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including identifiers of measurement signals corresponding to each of the second restricted beams of the interfering base station, the second recommended beam list including identifiers of measurement signals corresponding to each of the second recommended beams of the interfering base station, the second restricted beams being beams awaiting restriction, and the second recommended beams being beams awaiting recommendation; and / or The method further includes receiving a third active message sent from the controller, the third active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting the second restricted beam, disabling the enabled restricted window when the next frame period is reached, enabling the restricted window waiting to be activated based on the third active message, restricting transmission of data to the user device using the second restricted beam within the enabled restricted window, transmitting data to the user device using the second recommended beam, and transmitting data to the user device using a beam in any direction outside the enabled restricted window.

[0161] In some embodiments, the restriction window is one or more, and the method for measuring CLI comprises: The method further includes, after receiving first arrangement information of the restriction windows sent from the controller, enabling a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows, wherein the first arrangement information of each restriction window indicates a time slot occupied by the restriction window.

[0162] In some embodiments, the third active message may further include: first configuration information of the restricted window awaiting activation; and the first configuration information of the restricted window awaiting activation indicating a time slot to be occupied by the restricted window awaiting activation. In this case, activating the restricted window awaiting activation based on the third active message may include activating the restricted window awaiting activation in a time slot indicated by the first configuration information of the restricted window awaiting activation.

[0163] In some embodiments, the ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio.

[0164] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station, The length of the limiting window is less than or equal to the frame period, The period of the limiting window is an integer multiple of the frame period, The offset of the bounding window within one frame period does not exceed the last time slot within the frame period.

[0165] In some embodiments, the bounding window does not extend beyond the last time slot in a frame period.

[0166] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots being downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0167] In some embodiments, there are one or more interference measurement windows, and the enabled interference measurement windows are used for CLI measurements, and the second configuration information of the interference measurement windows indicates a time slot occupied by the interference measurement window, and the second configuration information of each interference measurement window includes one or more configuration parameters among a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS for the interference measurement window is the fixed SCS or the SCS of the victim base station, The length of the interferometric window is equal to or less than the frame period, The period of the interferometry window is an integer multiple of the frame period, The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0168] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0169] Corresponding to the above-mentioned CLI measurement method applied to the victim base station, an embodiment of the present application provides a CLI measurement method applied to the controller, and as shown in FIG. 8, the method includes the following steps: Step S81: Obtain second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, where the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to the beam one-to-one, and the direction of different beams is different. Step S82: Send second allocation information to the victim base station, send second resource allocation information of the interfering base station to each interfering base station, and send first resource allocation information to the victim base station, where the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier of the first resource allocation information corresponds one-to-one with the victim base station.

[0170] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit measurement signals to a victim base station, and the victim base station measures the different measurement signals within an interference measurement window to obtain CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, and the time-frequency resource scheduling between the base stations is coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. In addition, the victim base station only measures measurement signals corresponding to different beams within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0171] In some embodiments, the second configuration information includes one or more configuration parameters of a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS for the interference measurement window is the fixed SCS or the SCS of the victim base station, The length of the interferometric window is equal to or less than the frame period, The period of the interferometry window is an integer multiple of the frame period, The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0172] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0173] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots being downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0174] In some embodiments, the interference measurement window is one or more, and the enabled interference measurement window is used for CLI measurement, in which case the CLI measurement method comprises: The method further includes transmitting a second active message to the victim base station, the second active message including an identifier of the interference measurement window awaiting activation.

[0175] In some embodiments, all measurement signals transmitted from each interfering base station are SSBs corresponding to a wide beam, and / or the measurement signals are CSI-RSs corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0176] In some embodiments, the second resource configuration information of each interfering base station includes an indication parameter corresponding to the CSI-RS, where the indication parameter indicates that the CSI-RS is to be used for crosslink interference CLI measurement.

[0177] In some embodiments, the victim base station is one or more, and the CLI measurement method includes: receiving beam measurement results of CLI measurements transmitted from each victim base station; The method further includes determining a second restricted beam and a second recommended beam of each interfering base station based on each beam measurement result, where the second restricted beam is a beam waiting to be restricted and the second recommended beam is a beam waiting to be recommended.

[0178] In some embodiments, the beam measurement results may include an identifier of the interfering base station, a respective identifier of each measured signal, and a CLI value of each measured signal; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes identifiers of measurement signals corresponding to each of the first restricted beams, the first recommended beam list includes identifiers of measurement signals corresponding to each of the first recommended beams, the first restricted beams are beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams are beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement results include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams.

[0179] In some embodiments, when the beam measurement results include a first restricted beam list and a first recommended beam list, the step of determining a second restricted beam and a second recommended beam of each interfering base station based on the beam measurement results includes: determining a beam corresponding to each first measurement signal as a second restricted beam of the interfering base station transmitting the first measurement signal, wherein the first measurement signal is a measurement signal whose identifier is included in any of the first restricted beam lists; The method includes determining a beam corresponding to each second measurement signal as a second recommended beam of the interfering base station transmitting the second measurement signal, wherein the second measurement signal is a measurement signal whose identifier is not included in any of the first restricted beam lists and is included in any of the first recommended beam lists.

[0180] In some embodiments, when the beam measurement results do not include the first restricted beam list and the first recommended beam list, the step of determining a second restricted beam and a second recommended beam of each interfering base station based on the beam measurement results includes: The method includes determining a second restricted beam and a second recommended beam for each interfering base station based on the CLI value included in each beam measurement result.

[0181] In some embodiments, the step of determining a second restricted beam and a second recommended beam for each interfering base station based on a CLI value included in each beam measurement result includes: If the target CLI value of any one of the measurement signals is greater than the first preset CLI threshold, determining that the measurement signal is a second restricted beam of the interfering base station transmitting the measurement signal; When each target CLI value of a measurement signal is less than or equal to a first preset CLI threshold and any target CLI value of the measurement signal is less than a second preset CLI threshold, determining that the beam corresponding to the measurement signal is a second recommended beam of the interfering base station transmitting the measurement signal; Wherein, when the CLI value included in the beam measurement result is the current RSRP of the measurement signal, the target CLI value may be the current RSRP included in the beam measurement result, i.e., the target CLI value may be a short-term CLI value, or the target CLI value may be an RSRP determined based on the current RSRP and the historical RSRP included in the beam measurement result, i.e., the target CLI value may be a long-term CLI value; If the CLI value included in the beam measurement result is an RSRP determined based on the current RSRP and the historical RSRP, the target CLI value is the RSRP included in the beam measurement result, i.e., the target CLI value is the long-term CLI value.

[0182] In some embodiments, for each interfering base station, a ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio; At each interfering base station, the number of times the second restricted beam is restricted is greater than the number of times the other beams of the interfering base station are restricted.

[0183] In some embodiments, the method for measuring CLI comprises: Sending a first active message to the target victim base station and a third active message to the target interfering base station, wherein the first active message and the third active message include an identifier of a restriction window waiting to be activated, wherein in the target victim base station, the restriction window waiting to be activated is a window restricting a beam that is the same as the directional area of ​​the first restricted beam, and in the target interfering base station, the restriction window waiting to be activated is a window restricting a second restricted beam, the first restricted beam is a beam whose CLI value measured by the target victim base station is greater than a first preset CLI threshold, the target victim base station is a victim base station having the first restricted beam, and the target interfering base station is an interfering base station having the second restricted beam; and / or The method further includes transmitting a beam measurement result set of crosslink interference CLI measurements by each victim base station to the target interfering base station, wherein the beam measurement result set includes a second restricted beam list and a second recommended beam list, the second restricted beam list including an identifier of a measurement signal corresponding to each of the second restricted beams of the target interfering base station, and the second recommended beam list including an identifier of a measurement signal corresponding to each of the second recommended beams of the target interfering base station.

[0184] In some embodiments, the first active message and the third active message further include first placement information of the restricted window awaiting activation, and the first placement information of the restricted window awaiting activation indicates a time slot occupied by the restricted window awaiting activation.

[0185] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station, The length of the limiting window is less than or equal to the frame period, The period of the limiting window is an integer multiple of the frame period, The offset of the bounding window within one frame period does not exceed the last time slot within the frame period.

[0186] In some embodiments, the bounding window does not extend beyond the last time slot in a frame period.

[0187] Corresponding to the above-mentioned CLI measurement method, the embodiment of the present application further provides a CLI measurement device applied to a victim base station, as shown in FIG. 9, the device includes: A first receiving means 91 receives different measurement signals transmitted by different beams from the interfering base station within an interference measurement window, where the measurement signals correspond one-to-one to the beams, and the different beams have different directions; and a measuring means 92 for measuring the cross-link interference CLI value of the beam corresponding to each of the measurement signals based on each of the measurement signals.

[0188] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit measurement signals to a victim base station, and the victim base station measures the different measurement signals within an interference measurement window to obtain CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams, and the time-frequency resource scheduling between the base stations is coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. Furthermore, the victim base station only measures measurement signals corresponding to different beams within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0189] In some embodiments, the measuring means 92 specifically includes: Measuring the current RSRP of each of the measurement signals as a cross-link interference CLI value of the beam corresponding to each of the measurement signals; or The method is used to measure the current RSRP of each of the measurement signals, and to update the CLI value of the beam corresponding to each of the measurement signals based on the current RSRP and historical RSRP of each of the measurement signals.

[0190] In some embodiments, the CLI measurement device comprises: generating means for generating a beam measurement result based on the CLI value of the beam corresponding to each of the measurement signals; The system further comprises a transmitting means for transmitting the beam measurement results to the controller.

[0191] In some embodiments, the generating means specifically comprises: If a first restricted beam or a first recommended beam exists among all beams used by the interfering base station, it is used to generate a beam measurement result of the first restricted beam or the first recommended beam, where the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold.

[0192] In some embodiments, the transmitting means specifically comprises: Sending the latest beam measurement results to the controller according to a pre-set reporting period, or When a preset trigger condition is met, the beam measurement results are sent to the controller.

[0193] In some embodiments, the preset reporting period is equal to or greater than the period of the interference measurement window, and the preset reporting period is equal to or less than the maximum assignable period of the interference measurement window.

[0194] In some embodiments, the preset trigger condition is a change in a first restricted beam and / or a change in a first recommended beam among all beams used by the interfering base station, the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam being a beam whose CLI value is less than a second preset CLI threshold.

[0195] In some embodiments, the beam measurement results include an identifier of the interfering base station, an identifier of each of the measurement signals, and a CLI value of a beam corresponding to each of the measurement signals, wherein the first restricted beam is a beam having a CLI value greater than a first preset CLI threshold, and the first preferred beam is a beam having a CLI value less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes identifiers of measurement signals corresponding to each of the first restricted beams, the first recommended beam list includes identifiers of measurement signals corresponding to each of the first recommended beams, the first restricted beams are beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams are beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement results include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams.

[0196] In some embodiments, the CLI measurement device comprises: The device further includes a second receiving means for receiving a first active message sent from the controller, the first active message including an identifier of a restriction window waiting to be activated, the restriction window waiting to be activated being a window restricting a beam that is the same as the directional area of ​​the first restricted beam, the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold, and disabling the enabled restriction window when the next frame period is reached, enabling the restriction window waiting to be activated based on the first active message, receiving data transmitted from a user device using a beam in any direction within the enabled restriction window, and restricting reception of data transmitted from a user device using a beam that is the same as the directional area of ​​the first restricted beam outside the enabled restriction window.

[0197] In some embodiments, the first active message further includes first placement information of the restriction window awaiting activation, the first placement information of the restriction window awaiting activation indicating a time slot occupied by the restriction window awaiting activation; The second receiving means is specifically used for activating the restriction window waiting to be activated in the time slot indicated by the first arrangement information of the restriction window waiting to be activated.

[0198] In some embodiments, the restriction window is one or more, and the CLI measurement device comprises: and a first activation means for activating a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows after receiving the first arrangement information of the restriction windows transmitted from the controller, wherein the first arrangement information of each restriction window is used to indicate the time slot occupied by the restriction window.

[0199] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station, The length of the limiting window is less than or equal to the frame period, The period of the limiting window is an integer multiple of the frame period, The offset of the bounding window within one frame period does not exceed the last time slot within the frame period.

[0200] In some embodiments, the bounding window does not extend beyond the last time slot in a frame period.

[0201] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots being downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0202] In some embodiments, there are one or more interference measurement windows, and the enabled interference measurement window is used for CLI measurement, and the CLI measurement device comprises: and a second activation means for activating a default interference measurement window among all the interference measurement windows based on the received second arrangement information of the interference measurement windows after receiving second arrangement information of the interference measurement windows transmitted from the controller, wherein the second arrangement information of each interference measurement window is used to indicate the time slot occupied by the interference measurement window.

[0203] In some embodiments, the interference measurement window is one or more, and the second placement information of each interference measurement window includes one or more placement parameters among a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS for the interference measurement window is the fixed SCS or the SCS of the victim base station, The length of the interferometric window is equal to or less than the frame period, The period of the interferometry window is an integer multiple of the frame period, The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0204] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0205] In some embodiments, the CLI measurement device comprises: The wireless communication system further includes a third receiving means for receiving first resource allocation information transmitted from the controller, the first resource allocation information including an identifier of the first resource allocation information and second resource allocation information of each interfering base station, the identifier of the first resource allocation information corresponding to the victim base station one-to-one, and the second resource allocation information of each interfering base station being used to indicate time-frequency domain resources occupied by each measurement signal of the interfering base station.

[0206] In some embodiments, all measurement signals transmitted from each interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0207] In some embodiments, the second resource configuration information of each interfering base station includes an indication parameter corresponding to the CSI-RS, where the indication parameter indicates that the CSI-RS is to be used for CLI measurement.

[0208] Corresponding to the above-mentioned CLI measurement method, an embodiment of the present application provides a CLI measurement device applied to an interfering base station, in which at least one measurement signal is configured in the interfering base station, and the time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, and the measurement signals correspond to beams one-to-one, and different beams have different directions. As shown in Figure 10, the device: An obtaining means 101 for obtaining second resource allocation information of an interfering base station, where the second resource allocation information is used to indicate a time-frequency domain resource occupied by at least one measurement signal; and a transmitting means 102, which is used for transmitting measurement signals to the victim base station using different beams according to the second resource allocation information.

[0209] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit beam measurement signals to a victim base station, and the victim base station measures the different beam measurement signals within an interference measurement window to obtain the CLI values ​​of the different measurement signals generated by the interfering base station for the victim base station, i.e., the CLI values ​​of the beams corresponding to the different beam measurement signals. According to the CLI values ​​of the different beams generated by the interfering base station for the victim base station, a corresponding CLI suppression technique can be obtained, and the time-frequency resource scheduling between base stations can be coordinated to suppress CLI in different beam directions in the F-TDD communication system, thereby improving the performance of the F-TDD communication system. Furthermore, the victim base station measures the beam measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0210] In some embodiments, the obtaining means 101 is specifically used for receiving the second resource allocation information of the interfering base station sent from the controller.

[0211] In some embodiments, all measurement signals transmitted from an interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0212] In some embodiments, the second resource configuration information of the interfering base station includes an indication parameter corresponding to the CSI-RS, where the indication parameter indicates that the CSI-RS is to be used for crosslink interference CLI measurement.

[0213] In some embodiments, the CLI measurement device comprises: a first receiving means for receiving a beam measurement result set of crosslink interference CLI measurements by each victim base station transmitted from the controller, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including identifiers of measurement signals corresponding to each of the second restricted beams of the interfering base station, the second recommended beam list including identifiers of measurement signals corresponding to each of the second recommended beams of the interfering base station, the second restricted beams being beams awaiting restriction, and the second recommended beams being beams awaiting recommendation; and / or The wireless communication device further includes a second receiving means for receiving a third active message sent from the controller, the third active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting the second restricted beam, disabling the enabled restricted window when the next frame period is reached, enabling the restricted window waiting to be activated based on the third active message, restricting data transmission to the user device using the second restricted beam within the enabled restricted window, transmitting data to the user device using the second recommended beam, and transmitting data to the user device using a beam in any direction outside the enabled restricted window.

[0214] In some embodiments, the restriction window is one or more, and the CLI measurement device comprises: The apparatus further includes an activation means for activating a default restriction window among all restriction windows based on the received first arrangement information of the restriction windows after receiving the first arrangement information of the restriction windows transmitted from the controller, wherein the first arrangement information of each restriction window is used to indicate the time slot occupied by the restriction window.

[0215] In some embodiments, the third active message further includes first placement information of the bounded window awaiting activation, the first placement information of the bounded window awaiting activation indicating a time slot occupied by the bounded window awaiting activation; The second receiving means is specifically used for activating the restriction window waiting to be activated in the time slot indicated by the first arrangement information of the restriction window waiting to be activated.

[0216] In some embodiments, the ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio.

[0217] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station, The length of the limiting window is less than or equal to the frame period, The period of the limiting window is an integer multiple of the frame period, The offset of the bounding window within one frame period does not exceed the last time slot within the frame period.

[0218] In some embodiments, the bounding window does not extend beyond the last time slot in a frame period.

[0219] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots being downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0220] In some embodiments, the interference measurement window is one or more, and the enabled interference measurement window is used for CLI measurement, and the second placement information of each interference measurement window includes one or more placement parameters among a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS for the interference measurement window is the fixed SCS or the SCS of the victim base station, The length of the interferometric window is equal to or less than the frame period, The period of the interferometry window is an integer multiple of the frame period, The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0221] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0222] Corresponding to the above-mentioned CLI measurement method, an embodiment of the present application provides a CLI measurement device applied to a controller, as shown in FIG. 11, the device includes: an acquiring means 111 for acquiring second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, where the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to the beam one-to-one, and the direction of different beams is used differently; and a first transmitting means 112 for transmitting second allocation information to the victim base station, transmitting second resource allocation information of the interfering base station to each interfering base station, and transmitting first resource allocation information to the victim base station, wherein the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifiers of the first resource allocation information correspond one-to-one to the victim base station.

[0223] In the technical solution provided by the embodiments of the present application, an interfering base station uses different beams to transmit beam measurement signals to a victim base station, and the victim base station measures the different beam measurement signals within an interference measurement window to obtain the CLI values ​​of the different measurement signals generated by the interfering base station for the victim base station, i.e., the CLI values ​​of the beams corresponding to the different beam measurement signals. Corresponding CLI suppression techniques can be obtained based on the CLI values ​​of the different beams generated by the interfering base station for the victim base station, and the CLI of different beam directions in the F-TDD communication system can be suppressed by cooperating with the scheduling of time-frequency resources between base stations to improve the performance of the F-TDD communication system. Furthermore, the victim base station measures the beam measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of the victim base station's interference measurement and saving the victim base station's energy.

[0224] In some embodiments, the second configuration information includes one or more configuration parameters of a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS for the interference measurement window is the fixed SCS or the SCS of the victim base station, The length of the interferometric window is equal to or less than the frame period, The period of the interferometry window is an integer multiple of the frame period, The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0225] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0226] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots being downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0227] In some embodiments, there are one or more interference measurement windows, and the enabled interference measurement window is used for CLI measurement, and the CLI measurement device comprises: The method further comprises a second sending means adapted to send a second active message to the victim base station, the second active message including an identifier of an interference measurement window awaiting activation.

[0228] In some embodiments, all measurement signals transmitted from each interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0229] In some embodiments, the second resource configuration information of each interfering base station includes an indication parameter corresponding to the CSI-RS, where the indication parameter indicates that the CSI-RS is to be used for CLI measurement.

[0230] In some embodiments, the victim base station is one or more, and the CLI measurement device comprises: a receiving means for receiving beam measurement results of the crosslink interference (CLI) measurement transmitted from each victim base station; The system further includes a determination means for determining a second restricted beam and a second recommended beam of each interfering base station based on each beam measurement result, wherein the second restricted beam is a beam awaiting restriction and the second recommended beam is a beam awaiting recommendation.

[0231] In some embodiments, the beam measurement results include an identifier of the interfering base station, an identifier for each of the measured signals, and a CLI value for the beam corresponding to each of the measured signals; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes identifiers of measurement signals corresponding to each of the first restricted beams, the first recommended beam list includes identifiers of measurement signals corresponding to each of the first recommended beams, the first restricted beams are beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams are beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement results include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams.

[0232] In some embodiments, the determining means specifically comprises: determining a beam corresponding to each of the first measurement signals as a second restricted beam of the interfering base station transmitting the first measurement signals, the first measurement signals being measurement signals whose identifiers are included in any of the first restricted beam lists; This is used to determine the beam corresponding to each second measurement signal as the second recommended beam of the interfering base station that transmits the second measurement signal, wherein the second measurement signal is a measurement signal whose identifier is not included in any of the first restricted beam lists and is included in any of the first recommended beam lists.

[0233] In some embodiments, the determination means is specifically used to determine a second restricted beam and a second recommended beam of each interfering base station based on the CLI value included in each beam measurement result when the beam measurement result does not include the first restricted beam list and the first recommended beam list.

[0234] In some embodiments, the determining means specifically comprises: When the target CLI value of any one of the measurement signals is greater than the first preset CLI threshold, determining that the beam corresponding to the measurement signal is a second restricted beam of the interfering base station transmitting the measurement signal; When each target CLI value of a measurement signal is less than or equal to the first preset CLI threshold and the target CLI value of any of the measurement signals is less than the second preset CLI threshold, determining that the beam corresponding to the measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal; Wherein, when the CLI value included in the beam measurement result is the current reference signal received power RSRP of the measurement signal, the target CLI value is the current RSRP included in the beam measurement result, or the target CLI value is the RSRP determined based on the current RSRP and the historical RSRP included in the beam measurement result; If the target CLI value is an RSRP determined based on the current RSRP and historical RSRP included in the beam measurement result, the target CLI value is the RSRP included in the beam measurement result.

[0235] In some embodiments, for each interfering base station, a ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio; At each interfering base station, the number of times the second restricted beam is restricted is greater than the number of times the other beams of the interfering base station are restricted.

[0236] In some embodiments, the CLI measurement device comprises: a third transmitting means for transmitting a first active message to the target victim base station and a third active message to the target interfering base station, the first active message and the third active message including an identifier of a restriction window awaiting activation, wherein, in the target victim base station, the restriction window awaiting activation is a window restricting a beam that is the same as the directional area of ​​the first restricted beam, and in the target interfering base station, the restriction window awaiting activation is a window restricting a second restricted beam, the first restricted beam is a beam whose CLI value measured by the target victim base station is greater than a first preset CLI threshold, the target victim base station is the victim base station having the first restricted beam, and the target interfering base station is the interfering base station having the second restricted beam; and / or The system further includes a fourth transmitting means for transmitting a beam measurement result set of crosslink interference CLI measurements by each victim base station to the target interfering base station, wherein the beam measurement result set includes a second restricted beam list and a second recommended beam list, the second restricted beam list including identifiers of measurement signals corresponding to each of the second restricted beams of the target interfering base station, and the second recommended beam list including identifiers of measurement signals corresponding to each of the second recommended beams of the target interfering base station.

[0237] In some embodiments, the first active message and the third active message further include first placement information of the restricted window awaiting activation, and the first placement information of the restricted window awaiting activation indicates a time slot occupied by the restricted window awaiting activation.

[0238] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station, The length of the limiting window is less than or equal to the frame period, The period of the limiting window is an integer multiple of the frame period, The offset of the bounding window within one frame period does not exceed the last time slot within the frame period.

[0239] In some embodiments, the bounding window does not extend beyond the last time slot in a frame period.

[0240] Corresponding to the above-mentioned CLI measurement method, as shown in FIG. 12 , an embodiment of the present application provides a base station including a processor 121, a communication interface 122, a memory 123, and a communication bus 124, wherein the processor 121, the communication interface 122, and the memory 123 communicate with each other via the communication bus 124; The memory 123 is used to store computer programs. The processor 121 executes the program stored in the memory to implement the steps of the CLI measurement method described in any one of the above paragraphs, which is applied to a victim base station or an interfering base station.

[0241] If the above base station is a victim base station, the processor 121 executes a program stored in the memory to receive different measurement signals transmitted by the interfering base station using different beams within the interference measurement window, where the measurement signals correspond one-to-one to the beams and the directions of the different beams are different, and measure the crosslink interference CLI values ​​of the beams corresponding to each measurement signal based on each measurement signal.

[0242] In some embodiments, the step of measuring a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on each of the measurement signals includes: Measuring the current reference signal received power RSRP of each measurement signal as the cross-link interference CLI value of the beam corresponding to each measurement signal; or Measuring a current RSRP of each of the measurement signals, and updating a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on the current RSRP and historical RSRP of each of the measurement signals.

[0243] In some embodiments, the processor 121, when executing a program stored in the memory, further performs the following: generating beam measurement results based on the respective CLI values ​​of each beam; and transmitting the beam measurement results to the controller.

[0244] In some embodiments, the step of generating beam measurement results based on the respective CLI values ​​of each beam includes, if a first restricted beam or a first recommended beam exists among all beams used by the interfering base station, generating beam measurement results for the first restricted beam or the first recommended beam, wherein the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold.

[0245] In some embodiments, the step of transmitting the beam measurement results to the controller includes transmitting the latest beam measurement results to the controller according to a preset reporting period, or transmitting the beam measurement results to the controller when a preset trigger condition is satisfied.

[0246] In some embodiments, the preset reporting period is equal to or greater than a period of the interference measurement window, and the preset reporting period is equal to or less than a maximum assignable period of the interference measurement window.

[0247] In some embodiments, the preset trigger condition is a change in a first restricted beam and / or a change in a first recommended beam among all beams used by the interfering base station, the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam being a beam whose CLI value is less than a second preset CLI threshold.

[0248] In some embodiments, the beam measurement results include an identifier of the interfering base station, an identifier of each of the measurement signals, and a CLI value of a beam corresponding to each of the measurement signals, wherein the first restricted beam is a beam having a CLI value greater than a first preset CLI threshold, and the first preferred beam is a beam having a CLI value less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes identifiers of measurement signals corresponding to each of the first restricted beams, and the first recommended beam list includes identifiers of measurement signals corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement results include an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams.

[0249] In some embodiments, when the processor 121 executes a program stored in memory, it further performs the following: receiving a first active message sent from the controller, the first active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting a beam that has the same directional area as the first restricted beam, and the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold; when the next frame period arrives, disabling the enabled restricted window and enabling the restricted window waiting to be activated based on the first active message; receiving data transmitted from a user device using a beam in any direction within the enabled restricted window; and restricting receiving data transmitted from a user device using a beam that has the same directional area as the first restricted beam outside the enabled restricted window.

[0250] In some embodiments, the first active message further includes first placement information of the limit window waiting to be activated, the first placement information of the limit window waiting to be activated indicating a time slot occupied by the limit window waiting to be activated; The step of enabling the activation-waiting restricted window based on the first active message includes enabling the activation-waiting restricted window at a time slot indicated by first placement information of the activation-waiting restricted window.

[0251] In some embodiments, the restriction window is one or more, and when the processor 121 executes the program stored in the memory, after receiving first arrangement information of the restriction windows sent from the controller, the processor 121 further realizes enabling a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows, and the first arrangement information of each restriction window indicates the time slot occupied by the restriction window.

[0252] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

[0253] In some embodiments, the bounding window does not extend beyond the last time slot in the frame period.

[0254] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; When the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0255] In some embodiments, the interference measurement window is one or more, and the enabled interference measurement window is used for CLI measurement. When the processor 121 executes the program stored in the memory, after receiving second arrangement information of the interference measurement window sent from the controller, the processor 121 enables a default interference measurement window among all the interference measurement windows based on the received second arrangement information of the interference measurement window, wherein the second arrangement information of each interference measurement window indicates the time slot occupied by the interference measurement window; and after receiving a second active message sent from the controller, including an identifier of an interference measurement window waiting to be activated, the processor 121 disables the enabled interference measurement window when the next frame period is reached, and enables the interference measurement window waiting to be activated based on the second active message.

[0256] In some embodiments, the interference measurement window is one or more, and the second arrangement information of each interference measurement window includes one or more arrangement parameters among a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0257] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0258] In some embodiments, when the processor 121 executes a program stored in the memory, it further realizes receiving first resource allocation information sent from the controller, the first resource allocation information including an identifier of the first resource allocation information and second resource allocation information of each interfering base station, the identifier of the first resource allocation information having a one-to-one correspondence with the victim base station, and the second resource allocation information of each interfering base station indicating a time-frequency domain resource occupied by each measurement signal of the interfering base station.

[0259] In some embodiments, all measurement signals transmitted from each interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0260] In some embodiments, the second resource configuration information of each interfering base station includes an indication parameter corresponding to the CSI-RS, the indication parameter indicating that the CSI-RS is used for CLI measurement.

[0261] If the above base station is an interfering base station, at least one measurement signal is configured in the interfering base station, and the time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, the measurement signals correspond one-to-one to beams, and the directions of different beams are different. When the processor 121 executes a program stored in the memory, it achieves the following: obtaining second resource configuration information of the interfering base station, the second resource configuration information indicating the time-frequency domain resources occupied by the at least one measurement signal; and transmitting measurement signals to the victim base station using different beams based on the second resource configuration information.

[0262] In some embodiments, the step of obtaining the second resource allocation information of the interfering base station includes receiving the second resource allocation information of the interfering base station transmitted from a controller.

[0263] In some embodiments, all measurement signals transmitted from the interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0264] In some embodiments, the second resource configuration information of the interfering base station includes an indication parameter corresponding to the CSI-RS, the indication parameter indicating that the CSI-RS is used for crosslink interference CLI measurement.

[0265] In some embodiments, the processor 121 executes a program stored in memory to: receiving a beam measurement result set of crosslink interference CLI measurements by each victim base station transmitted from a controller, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including a measurement signal identifier corresponding to each second restricted beam of the interfering base station, the second recommended beam list including a measurement signal identifier corresponding to each second recommended beam of the interfering base station, the second restricted beams being beams awaiting restriction, and the second recommended beams being beams awaiting recommendation; and / or The controller further realizes that when it receives a third active message sent from the controller and reaches the next frame period, it disables the enabled restricted window, enables the restricted window waiting to be activated based on the third active message, restricts transmitting data to the user device using the second restricted beam within the enabled restricted window, transmits data to the user device using the second recommended beam, and transmits data to the user device using a beam in any direction outside the enabled restricted window, wherein the third active message includes an identifier of the restricted window waiting to be activated, and the restricted window waiting to be activated is a window that restricts the second restricted beam.

[0266] In some embodiments, there are one or more restriction windows, and when the processor 121 executes the program stored in the memory, after receiving first arrangement information of the restriction windows sent from the controller, the processor 121 further realizes enabling a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows, and the first arrangement information of each restriction window indicates the time slot occupied by the restriction window.

[0267] In some embodiments, the third active message further includes first placement information of the limit window waiting to be activated, the first placement information of the limit window waiting to be activated indicating a time slot occupied by the limit window waiting to be activated; The step of enabling the activation-waiting restricted window based on the third active message includes enabling the activation-waiting restricted window at a time slot indicated by first placement information of the activation-waiting restricted window.

[0268] In some embodiments, the ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio.

[0269] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

[0270] In some embodiments, the bounding window does not extend beyond the last time slot in the frame period.

[0271] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; When the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0272] In some embodiments, the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement, and the second configuration information of each interference measurement window includes one or more configuration parameters among a reference subcarrier spacing SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0273] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0274] Corresponding to the above-mentioned CLI measurement method, as shown in FIG. 13 , an embodiment of the present application provides a controller including a processor 131, a communication interface 132, a memory 133, and a communication bus 134, wherein the processor 131, the communication interface 132, and the memory 133 communicate with each other via the communication bus 134; The memory 133 is used to store computer programs. The processor 131, when executing a program stored in the memory, is used to realize the steps of the CLI measurement method described in any one of the above items that is applied to the controller.

[0275] In an embodiment of the present application, when the processor 131 executes a program stored in memory, the processor 131 obtains second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signals of each interfering base station, where the second configuration information indicates the time slot occupied by the interference measurement window and the second resource configuration information of each interfering base station indicates the time-frequency domain resources occupied by each measurement signal of the interfering base station, where in each interfering base station, the measurement signals correspond one-to-one to the beams and the directions of different beams are different; and transmits the second configuration information to the victim base station, transmits the second resource configuration information of the interfering base station to each interfering base station, and transmits first resource configuration information to the victim base station, where the first resource configuration information includes an identifier of the first resource configuration information and the second resource configuration information of each interfering base station, and the identifier of the first resource configuration information corresponds one-to-one to the victim base station.

[0276] In some embodiments, the second configuration information includes one or more configuration parameters among a reference SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; a reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; the length of the interference measurement window is equal to or less than the frame period; the period of the interference measurement window is an integer multiple of the frame period; The offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

[0277] In some embodiments, the interference measurement window does not extend beyond the last time slot in the frame period.

[0278] In some embodiments, when the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any consecutive one or more time slots; When the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are the uplink time slots of the victim base station.

[0279] In some embodiments, the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement, and when the processor 131 executes a program stored in the memory, it further realizes sending a second active message to the victim base station, and the second active message includes an identifier of the interference measurement window waiting to be activated.

[0280] In some embodiments, all measurement signals transmitted from each interfering base station include an SSB corresponding to a wide beam and / or a CSI-RS corresponding to a narrow beam, and multiple narrow beams are included within the range of the wide beam.

[0281] In some embodiments, the second resource configuration information of each interfering base station includes an indication parameter corresponding to the CSI-RS, the indication parameter indicating that the CSI-RS is used for crosslink interference CLI measurement.

[0282] In some embodiments, the victim base station is one or more, and when the processor 131 executes a program stored in the memory, it further performs the following: receiving beam measurement results of crosslink interference CLI measurements transmitted from each victim base station; and determining a second restricted beam and a second recommended beam for each interfering base station based on each beam measurement result, wherein the second restricted beam is a beam awaiting restriction, and the second recommended beam is a beam awaiting recommendation.

[0283] In some embodiments, the beam measurement results include an identifier of an interfering base station, an identifier for each of the measurement signals, and a CLI value for a beam corresponding to each of the measurement signals; or The beam measurement result includes an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement results include an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value for each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value for each of the first recommended beams.

[0284] In some embodiments, when the beam measurement results include a first restricted beam list and a first recommended beam list, the step of determining a second restricted beam and a second recommended beam of each interfering base station based on the beam measurement results includes determining a beam corresponding to each of the first measurement signals as a second restricted beam of the interfering base station transmitting the first measurement signal, where the first measurement signal is a measurement signal whose identifier is included in any of the first restricted beam lists, and determining a beam corresponding to each of the second measurement signals as a second recommended beam of the interfering base station transmitting the second measurement signal, where the second measurement signal is a measurement signal whose identifier is not included in any of the first restricted beam lists and is included in any of the first recommended beam lists.

[0285] In some embodiments, if the beam measurement results do not include the first restricted beam list and the first recommended beam list, the step of determining a second restricted beam and a second recommended beam for each interfering base station based on each beam measurement result includes determining a second restricted beam and a second recommended beam for each interfering base station based on the CLI value included in each beam measurement result.

[0286] In some embodiments, the step of determining a second restricted beam and a second recommended beam of each interfering base station based on the CLI value included in each beam measurement result includes: if any target CLI value of a measurement signal is greater than a first preset CLI threshold, determining that the beam corresponding to the measurement signal is the second restricted beam of the interfering base station transmitting the measurement signal; and if all target CLI values ​​of a measurement signal are less than or equal to the first preset CLI threshold and any target CLI value of the measurement signal is less than a second preset CLI threshold, determining that the beam corresponding to the measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal; When the CLI value included in the beam measurement result is a current reference signal received power RSRP of a measurement signal, the target CLI value is the current RSRP included in the beam measurement result, or the target CLI value is an RSRP determined based on the current RSRP and a historical RSRP included in the beam measurement result; If the CLI value included in the beam measurement result is an RSRP determined based on the current RSRP and the historical RSRP, the target CLI value is the RSRP included in the beam measurement result.

[0287] In some embodiments, for each interfering base station, a ratio of the second restricted beam to all beams of the interfering base station is less than a preset ratio; At each interfering base station, the number of times the second restricted beam is restricted is greater than the number of times the other beams of the interfering base station are restricted.

[0288] In some embodiments, the processor 131 executes a program stored in memory to: sending a first active message to a target victim base station and a third active message to a target interfering base station, wherein the first active message and the third active message include an identifier of a restricted window waiting to be activated, wherein, in the target victim base station, the restricted window waiting to be activated is a window restricting a beam that is the same as the pointing area of ​​a first restricted beam, and in the target interfering base station, the restricted window waiting to be activated is a window restricting the second restricted beam, the first restricted beam is a beam whose CLI value measured by the target victim base station is greater than a first preset CLI threshold, the target victim base station is a victim base station having the first restricted beam, and the target interfering base station is an interfering base station having a second restricted beam; and / or The present invention further achieves the steps of transmitting a beam measurement result set of crosslink interference CLI measurements by each victim base station to a target interfering base station, wherein the beam measurement result set includes a second restricted beam list and a second recommended beam list, the second restricted beam list including a measurement signal identifier corresponding to each of the second restricted beams of the target interfering base station, and the second recommended beam list including a measurement signal identifier corresponding to each of the second recommended beams of the target interfering base station.

[0289] In some embodiments, the first active message and the third active message further include first configuration information of the restricted window awaiting activation, and the first configuration information of the restricted window awaiting activation indicates a time slot occupied by the restricted window awaiting activation.

[0290] In some embodiments, the first placement information of each restricted window includes one or more placement parameters among a reference SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

[0291] In some embodiments, the bounding window does not extend beyond the last time slot in the frame period.

[0292] The communication bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For convenience of illustration, the bus is shown with only one thick line in the drawings, but this does not mean that there is only one bus or only one type of bus.

[0293] The communication interface allows the base station or controller to communicate with other devices.

[0294] The memory may include random access memory (RAM) or non-volatile memory (NVM), such as at least one magnetic disk memory. Preferably, the memory may be at least one storage device remote from the processor.

[0295] The processor may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., or may be a Digital Signal Processing (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.

[0296] An embodiment of the present application provides a computer-readable storage medium having a computer program stored therein, the computer program implementing the steps of any of the above-described methods when executed by a processor.

[0297] In another embodiment provided herein, there is further provided a computer program product comprising instructions, which, when executed by a computer, cause the computer to perform the steps of the method for measuring CLI described in any of the above-described embodiments.

[0298] The above embodiments may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented by software, the embodiments may be implemented, in whole or in part, in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated, in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored on a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device, including a server, data center, etc., incorporating one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

[0299] It should be noted that, in this context, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another and do not necessarily require or imply the existence of any actual relationship or order between those entities or operations. Furthermore, the terms "comprise," "include," and other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or device that includes a set of elements may further include those elements as well as other elements not expressly listed, or may further include the inherent elements in such a process, method, article, or device. Unless otherwise specifically limited, an element qualified by "comprising..." does not exclude a process, method, article, or device that includes the element from having additional identical elements.

[0300] Although the embodiments in this specification are described as being related to each other, the same or similar parts between the embodiments may be referred to each other, and the differences between each embodiment and other embodiments will be mainly described. In particular, the embodiments of the apparatus, the base station, the controller, the computer-readable storage medium, and the program product are almost similar to the embodiments of the method, and therefore their explanations will be simplified, and the relevant parts may be referred to the embodiments of the method for identifying a segment identifier.

[0301] The above description is only a preferred embodiment of the present application, and does not limit the present application. Any amendments, equivalent replacements, modifications, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A crosslink interference measurement method applied to a victim base station, comprising: receiving different measurement signals transmitted by different beams from the interfering base station within the interference measurement window, the measurement signals having one-to-one correspondence with the beams, and the different beams having different directions; measuring a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on each of the measurement signals; A cross-link interference measurement method, characterized by:

2. Measuring a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on each of the measurement signals includes: Measuring the current reference signal received power (RSRP) of each measurement signal as the cross-link interference (CLI) value of the beam corresponding to each measurement signal; or measuring a current RSRP of each of the measurement signals, and updating a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on the current RSRP and the historical RSRP of each of the measurement signals.

2. The method for measuring cross-link interference according to claim 1, wherein:

3. generating beam measurements based on the respective CLI values ​​of each beam; and transmitting the beam measurement results to a controller.

2. The method for measuring cross-link interference according to claim 1, wherein:

4. generating beam measurements based on the respective CLI values ​​of each of the beams, generating a beam measurement result of the first restricted beam or the first recommended beam when a first restricted beam or a first recommended beam exists among all beams used by the interfering base station, wherein the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold.

4. The cross-link interferometry method according to claim 3, wherein:

5. transmitting the beam measurement results to a controller Sending the latest beam measurement results to the controller according to a pre-set reporting period, or transmitting the beam measurement results to a controller when a preset trigger condition is met.

4. The cross-link interferometry method according to claim 3, wherein:

6. The preset reporting period is equal to or greater than the period of the interference measurement window, and the preset reporting period is equal to or less than the maximum assignable period of the interference measurement window.

6. The cross-link interferometry method according to claim 5, wherein:

7. The preset trigger condition is that a first restricted beam among all beams used by the interfering base station changes and / or a first recommended beam changes, and the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold.

6. The cross-link interferometry method according to claim 5, wherein:

8. the beam measurement result includes an identifier of the interfering base station, a respective identifier of each measurement signal, and a CLI value of a beam corresponding to each measurement signal, wherein the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams, the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, the first restricted beam list including an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value of each of the first restricted beams, and the first recommended beam list including an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value of each of the first recommended beams. The cross-link interference measuring method according to any one of claims 3 to 7,

9. receiving a first active message sent from the controller, the first active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting a beam that is the same as the directional area of ​​the first restricted beam, and the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold; When a next frame period arrives, invalidating the activated bounded window and validating the bounded window waiting to be activated based on the first active message; receiving data transmitted from a user device using a beam in any direction within an enabled restriction window; and restricting reception of data transmitted from a user device using a beam that is the same as the directional area of ​​the first restricted beam outside an enabled restricted window. The cross-link interference measuring method according to any one of claims 3 to 7,

10. the first activation message further includes first placement information of the activation-waiting restricted window, the first placement information of the activation-waiting restricted window indicating a time slot occupied by the activation-waiting restricted window; Activating the activation pending limit window based on the first activation message includes: activating the restricted window awaiting activation in a time slot indicated by first allocation information of the restricted window awaiting activation.

10. The cross-link interferometry method according to claim 9, wherein:

11. the restriction window is one or more; and after receiving the first arrangement information of the restriction windows transmitted from the controller, enabling a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows, wherein the first arrangement information of each restriction window indicates a time slot occupied by the restriction window.

10. The cross-link interferometry method according to claim 9, wherein:

12. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

12. The method of claim 11, wherein:

13. The bounded window does not extend beyond the last time slot in the frame period.

13. The method of claim 12, wherein:

14. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station. The cross-link interference measuring method according to any one of claims 1 to 7,

15. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement; After receiving second arrangement information of the interference measurement windows transmitted from the controller, enable a default interference measurement window among all the interference measurement windows based on the received second arrangement information of the interference measurement windows, wherein the second arrangement information of each interference measurement window indicates a time slot occupied by the interference measurement window; and disabling the enabled interference measurement window when a next frame period is reached after receiving a second active message including an identifier of the interference measurement window awaiting activation, transmitted from the controller, and enabling the interference measurement window awaiting activation based on the second active message. The cross-link interference measuring method according to any one of claims 1 to 7,

16. the interference measurement window is one or more, and the second arrangement information of each interference measurement window includes one or more arrangement parameters among a reference subcarrier spacing SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period. The cross-link interference measuring method according to any one of claims 1 to 7,

17. The interference measurement window does not extend beyond the last time slot in the frame period.

17. The method of claim 16, wherein:

18. receiving first resource allocation information transmitted from a controller, the first resource allocation information including an identifier of the first resource allocation information and second resource allocation information of each interfering base station, the identifier of the first resource allocation information corresponding to the victim base station one-to-one, and the second resource allocation information of each interfering base station indicating a time-frequency domain resource occupied by each measurement signal of the interfering base station; The cross-link interference measuring method according to any one of claims 1 to 7,

19. All measurement signals transmitted from each interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

20. The method of claim 18, wherein:

20. The second resource allocation information of each interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for CLI measurement.

20. A method for cross-link interferometry according to claim 19.

21. A crosslink interference measurement method applied to an interfering base station, wherein at least one measurement signal is configured in the interfering base station, and time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, the measurement signals correspond one-to-one to beams, and the directions of different beams are different; Obtaining second resource allocation information of the interfering base station, where the second resource allocation information indicates a time-frequency domain resource occupied by the at least one measurement signal; and transmitting a measurement signal to the victim base station using a different beam based on the second resource allocation information. A cross-link interference measurement method, characterized by:

22. The obtaining of the second resource allocation information of the interfering base station includes: receiving second resource allocation information of the interfering base station transmitted from a controller.

22. A method for cross-link interferometry according to claim 21 .

23. All measurement signals transmitted from the interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

23. A method for measuring cross-link interference according to claim 21 or 22.

24. The second resource allocation information of the interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for crosslink interference (CLI) measurement.

24. A method for cross-link interferometry according to claim 23, characterized in that

25. receiving a beam measurement result set of crosslink interference CLI measurements by each victim base station transmitted from a controller, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including a measurement signal identifier corresponding to each of the second restricted beams of the interfering base station, the second recommended beam list including a measurement signal identifier corresponding to each of the second recommended beams of the interfering base station, the second restricted beams being beams awaiting restriction, and the second recommended beams being beams awaiting recommendation; and / or receiving a third active message transmitted from the controller, the third active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting the second restricted beam; disabling an enabled restricted window when a next frame period is reached; enabling the restricted window waiting to be activated based on the third active message; restricting data transmission to a user device using the second restricted beam within the enabled restricted window; transmitting data to the user device using the second recommended beam; and transmitting data to the user device using a beam in any direction outside the enabled restricted window.

22. The method of claim 21, wherein:

26. the restriction window is one or more; and after receiving the first arrangement information of the restriction windows transmitted from the controller, enabling a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows, wherein the first arrangement information of each restriction window indicates a time slot occupied by the restriction window.

26. The method of claim 25, wherein:

27. the third activation message further includes first placement information of the activation-waiting restricted window, the first placement information of the activation-waiting restricted window indicating a time slot occupied by the activation-waiting restricted window; Activating the activation pending limit window based on the third activation message includes: activating the restricted window awaiting activation in a time slot indicated by first allocation information of the restricted window awaiting activation.

26. The method of claim 25, wherein:

28. The ratio of the second restricted beam to all beams of the interfering base station is smaller than a preset ratio. A cross-link interference measurement method according to any one of claims 25 to 27.

29. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period. The cross-link interference measurement method according to any one of claims 25 to 27,

30. The bounded window does not extend beyond the last time slot in the frame period.

30. The method of claim 29, wherein:

31. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station.

22. The method of claim 21, wherein:

32. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement, and the second configuration information of each interference measurement window includes one or more configuration parameters among a reference subcarrier spacing SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

22. The method of claim 21, wherein:

33. The interference measurement window does not extend beyond the last time slot in the frame period.

33. The method of claim 32, wherein:

34. A cross-link interference measurement method applied to a controller, comprising: Obtain second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, where the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to the beam one-to-one, and the directions of different beams are different; transmitting the second allocation information to the victim base station, transmitting second resource allocation information of the interfering base station to each interfering base station, and transmitting first resource allocation information to the victim base station, wherein the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifiers of the first resource allocation information correspond one-to-one to the victim base station. A cross-link interference measurement method, characterized by:

35. the second configuration information includes one or more configuration parameters among a reference subcarrier spacing SCS of an interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

35. The method of claim 34, wherein:

36. The interference measurement window does not extend beyond the last time slot in the frame period.

36. The method of claim 35, wherein:

37. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station.

35. The method of claim 34, wherein:

38. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement; sending a second active message to the victim base station, the second active message including an identifier of an interference measurement window awaiting activation.

35. The method of claim 34, wherein:

39. All measurement signals transmitted from each interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

35. The method of claim 34, wherein:

40. The second resource allocation information of each interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for crosslink interference (CLI) measurement.

40. A method for cross-link interferometry according to claim 39.

41. the victim base station is one or more; receiving beam measurement results of crosslink interference (CLI) measurements transmitted from each victim base station; determining a second restricted beam and a second recommended beam of each interfering base station based on each beam measurement result, wherein the second restricted beam is a beam waiting to be restricted, and the second recommended beam is a beam waiting to be recommended.

35. A method for cross-link interferometry according to claim 34.

42. The beam measurement results include an identifier of an interfering base station, an identifier of each of the measurement signals, and a CLI value of a beam corresponding to each of the measurement signals; or The beam measurement result includes an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement result includes an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, the first restricted beam list including an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value of each of the first restricted beams, and the first recommended beam list including an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value of each of the first recommended beams.

42. The method of claim 41, wherein:

43. If the beam measurement result includes a first restricted beam list and a first recommended beam list, determining a second restricted beam and a second recommended beam for each interfering base station based on the beam measurement results; determining a beam corresponding to each of the first measurement signals as a second restricted beam of the interfering base station transmitting the first measurement signals, the first measurement signals being measurement signals whose identifiers are included in any of the first restricted beam lists; determining a beam corresponding to each second measurement signal as a second recommended beam of the interfering base station transmitting the second measurement signal, wherein the second measurement signal is a measurement signal whose identifier is not included in any of the first restricted beam lists and is included in any of the first recommended beam lists.

43. The method of claim 42, wherein:

44. If the beam measurement result does not include the first restricted beam list and the first recommended beam list, determining a second restricted beam and a second recommended beam for each interfering base station based on the beam measurement results; determining a second restricted beam and a second recommended beam for each interfering base station based on the CLI value included in each beam measurement result; 43. The method of claim 42, wherein:

45. determining a second restricted beam and a second recommended beam for each interfering base station based on a CLI value included in each beam measurement result; When the target CLI value of any one of the measurement signals is greater than a first preset CLI threshold, determining that the beam corresponding to the measurement signal is a second restricted beam of the interfering base station transmitting the measurement signal; When each target CLI value of a measurement signal is less than or equal to the first preset CLI threshold and the target CLI value of any of the measurement signals is less than a second preset CLI threshold, determining that the beam corresponding to the measurement signal is a second recommended beam of the interfering base station transmitting the measurement signal. When the CLI value included in the beam measurement result is a current reference signal received power RSRP of a measurement signal, the target CLI value is a current RSRP included in the beam measurement result, or the target CLI value is an RSRP determined based on the current RSRP and a historical RSRP included in the beam measurement result; If the CLI value included in the beam measurement result is an RSRP determined based on the current RSRP and the historical RSRP, the target CLI value is the RSRP included in the beam measurement result.

45. The method of claim 44, wherein:

46. In each interfering base station, a ratio of the second restricted beam to all beams of the interfering base station is smaller than a preset ratio; In each interfering base station, the number of times the second restricted beam is restricted is greater than the number of times the other beams of the interfering base station are restricted. A cross-link interference measurement method according to any one of claims 41 to 45.

47. sending a first active message to a target victim base station and a third active message to a target interfering base station, wherein the first active message and the third active message include an identifier of a restricted window waiting to be activated, wherein, in the target victim base station, the restricted window waiting to be activated is a window restricting a beam that is the same as the pointing area of ​​a first restricted beam, and in the target interfering base station, the restricted window waiting to be activated is a window restricting the second restricted beam, the first restricted beam is a beam whose CLI value measured by the target victim base station is greater than a first preset CLI threshold, the target victim base station is a victim base station having the first restricted beam, and the target interfering base station is an interfering base station having a second restricted beam; and / or transmitting a beam measurement result set of crosslink interference CLI measurements by each victim base station to a target interfering base station, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including a measurement signal identifier corresponding to each second restricted beam of the target interfering base station, and the second recommended beam list including a measurement signal identifier corresponding to each second recommended beam of the target interfering base station.

42. A method for cross-link interferometry according to claim 41 .

48. The first active message and the third active message further include first placement information of the bounded window awaiting activation, and the first placement information of the bounded window awaiting activation indicates a time slot occupied by the bounded window awaiting activation.

48. A method of cross-link interferometry according to claim 47.

49. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

48. The method of claim 47, wherein:

50. The bounded window does not extend beyond the last time slot in the frame period.

50. The method of claim 49, wherein:

51. A crosslink interference measurement device applied to a victim base station, comprising: a first receiving means for receiving different measurement signals transmitted by different beams from the interfering base station within the interference measurement window, the measurement signals corresponding to the beams one-to-one, and the different beams being used for different directions; and a measuring means for measuring a cross-link interference CLI value of a beam corresponding to each of the measurement signals based on the measurement signals. A cross-link interference measurement device characterized by:

52. The measuring means Measuring the current reference signal received power (RSRP) of each measurement signal as the cross-link interference (CLI) value of the beam corresponding to each measurement signal; or measuring a current RSRP of each of the measurement signals, and updating a cross-link interference CLI value of the beam corresponding to each of the measurement signals based on the current RSRP and the historical RSRP of each of the measurement signals.

52. The cross-link interferometry apparatus of claim 51, wherein:

53. generating means adapted to generate beam measurements based on the respective CLI values ​​of each beam; and a transmitting means for transmitting the beam measurement result to a controller.

52. The cross-link interferometry apparatus of claim 51, wherein:

54. The generating means If a first restricted beam or a first recommended beam exists among all beams used by the interfering base station, the first restricted beam or the first recommended beam is used to generate a beam measurement result of the first restricted beam or the first recommended beam, the first restricted beam being a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam being a beam whose CLI value is less than a second preset CLI threshold.

54. The cross-link interferometry apparatus of claim 53.

55. The transmitting means Sending the latest beam measurement results to the controller according to a pre-set reporting period, or and transmitting the beam measurement results to a controller when a preset trigger condition is met.

54. The cross-link interferometry apparatus of claim 53.

56. The preset reporting period is equal to or greater than the period of the interference measurement window, and the preset reporting period is equal to or less than the maximum assignable period of the interference measurement window.

56. The cross-link interferometry apparatus of claim 55.

57. The preset trigger condition is that a first restricted beam among all beams used by the interfering base station changes and / or a first recommended beam changes, and the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold.

56. The cross-link interferometry apparatus of claim 55.

58. the beam measurement result includes an identifier of the interfering base station, a respective identifier of each measurement signal, and a CLI value of a beam corresponding to each measurement signal, wherein the first restricted beam is a beam whose CLI value is greater than a first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams, the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement result includes an identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, the first restricted beam list including an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value of each of the first restricted beams, and the first recommended beam list including an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value of each of the first recommended beams.

58. The cross-link interferometry device according to any one of claims 53 to 57,

59. and a second receiving means for receiving a first active message transmitted from the controller, the first active message including an identifier of a restricted window awaiting activation, the restricted window awaiting activation being a window restricting a beam having the same direction as the directional area of ​​the first restricted beam, the first restricted beam being a beam having a CLI value greater than a first preset CLI threshold, disabling an enabled restricted window upon reaching a next frame period, enabling the restricted window awaiting activation based on the first active message, receiving data transmitted from a user device using a beam in any direction within the enabled restricted window, and restricting reception of data transmitted from a user device using the same beam as the directional area of ​​the first restricted beam outside the enabled restricted window.

58. The cross-link interferometry device according to any one of claims 53 to 57,

60. the first activation message further includes first placement information of the activation-waiting restricted window, the first placement information of the activation-waiting restricted window indicating a time slot occupied by the activation-waiting restricted window; The second receiving means is used to activate the restriction window waiting to be activated in a time slot indicated by first allocation information of the restriction window waiting to be activated.

60. The cross-link interferometry apparatus of claim 59.

61. the restriction window is one or more; and a first activation means for activating a default restriction window among all the restriction windows based on the received first restriction window arrangement information after receiving the first restriction window arrangement information transmitted from the controller, wherein the first restriction window arrangement information of each restriction window is used to indicate a time slot to be occupied by the restriction window.

60. The cross-link interferometry apparatus of claim 59.

62. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

62. The cross-link interferometry apparatus of claim 61 .

63. The bounded window does not extend beyond the last time slot in the frame period.

63. The cross-link interferometry apparatus of claim 62.

64. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station.

58. The cross-link interferometry device according to any one of claims 51 to 57,

65. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement; and second activation means for activating a default interference measurement window among all the interference measurement windows based on the received second arrangement information of the interference measurement windows after receiving the second arrangement information of the interference measurement windows transmitted from the controller, wherein the second arrangement information of each interference measurement window is used to indicate a time slot occupied by the interference measurement window.

58. The cross-link interferometry device according to any one of claims 51 to 57,

66. the interference measurement window is one or more, and the second arrangement information of each interference measurement window includes one or more arrangement parameters among a reference subcarrier spacing SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

58. The cross-link interferometry device according to any one of claims 51 to 57,

67. The interference measurement window does not extend beyond the last time slot in the frame period.

67. The cross-link interferometry apparatus of claim 66.

68. and a third receiving means for receiving first resource allocation information transmitted from the controller, the first resource allocation information including an identifier of the first resource allocation information and second resource allocation information of each interfering base station, the identifier of the first resource allocation information corresponding to the victim base station on a one-to-one basis, and the second resource allocation information of each interfering base station being used to indicate time-frequency domain resources occupied by each measurement signal of the interfering base station.

58. The cross-link interferometry device according to any one of claims 51 to 57,

69. All measurement signals transmitted from each interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

69. The cross-link interferometry apparatus of claim 68.

70. The second resource allocation information of each interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for CLI measurement.

70. A cross-link interferometry apparatus as claimed in claim 69.

71. A crosslink interference measurement device applied to an interfering base station, wherein at least one measurement signal is configured in the interfering base station, and time-frequency domain resources occupied by some or all of the at least one measurement signal are within an interference measurement window, and the measurement signals correspond one-to-one to beams, and the directions of different beams are different; an acquiring means for acquiring second resource allocation information of the interfering base station, the second resource allocation information being used to indicate a time-frequency domain resource occupied by the at least one measurement signal; a transmitting means for transmitting a measurement signal to the victim base station using a different beam based on the second resource allocation information. A cross-link interference measurement device characterized by:

72. The acquisition means and receiving second resource allocation information of the interfering base station transmitted from the controller.

72. A cross-link interferometry apparatus according to claim 71.

73. All measurement signals transmitted from the interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

73. A cross-link interferometry apparatus according to claim 71 or 72, characterized in that:

74. The second resource allocation information of the interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for crosslink interference (CLI) measurement.

74. A cross-link interferometry apparatus according to claim 73.

75. a first receiving means for receiving a beam measurement result set of crosslink interference CLI measurements by each victim base station transmitted from a controller, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including identifiers of measurement signals corresponding to each of the second restricted beams of the interfering base station, the second recommended beam list including identifiers of measurement signals corresponding to each of the second recommended beams of the interfering base station, the second restricted beams being beams awaiting restriction, and the second recommended beams being beams awaiting recommendation; and / or and a second receiving means for receiving a third active message transmitted from the controller, the third active message including an identifier of a restricted window waiting to be activated, the restricted window waiting to be activated being a window restricting the second restricted beam, disabling an enabled restricted window when a next frame period is reached, enabling the restricted window waiting to be activated based on the third active message, restricting data transmission to a user device using the second restricted beam within the enabled restricted window, transmitting data to the user device using the second recommended beam, and transmitting data to the user device using a beam in any direction outside the enabled restricted window.

72. The cross-link interferometry apparatus of claim 71, wherein:

76. the restriction window is one or more; and an activation means for activating a default restriction window among all the restriction windows based on the received first arrangement information of the restriction windows after receiving the first arrangement information of the restriction windows transmitted from the controller, wherein the first arrangement information of each restriction window is used to indicate a time slot to be occupied by the restriction window.

76. The cross-link interferometry apparatus of claim 75.

77. the third activation message further includes first placement information of the activation-waiting restricted window, the first placement information of the activation-waiting restricted window indicating a time slot occupied by the activation-waiting restricted window; The second receiving means is used to activate the restricted window awaiting activation in a time slot occupied by the restricted window awaiting activation indicated in the first arrangement information of the restricted window awaiting activation.

76. The cross-link interferometry apparatus of claim 75.

78. The ratio of the second restricted beam to all beams of the interfering base station is smaller than a preset ratio.

78. A cross-link interferometry device according to any one of claims 75 to 77.

79. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

78. The cross-link interferometry device according to any one of claims 75 to 77,

80. The bounded window does not extend beyond the last time slot in the frame period.

80. The cross-link interferometry apparatus of claim 79.

81. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station.

72. The cross-link interferometry apparatus of claim 71, wherein:

82. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement, and the second configuration information of each interference measurement window includes one or more configuration parameters among a reference subcarrier spacing SCS of the interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

72. The cross-link interferometry apparatus of claim 71, wherein:

83. The interference measurement window does not extend beyond the last time slot in the frame period.

83. The cross-link interferometry apparatus of claim 82.

84. A cross-link interference measurement device applied to a controller, comprising: an acquiring means for acquiring second configuration information of the interference measurement window of the victim base station and second resource configuration information of the measurement signal of each interfering base station, wherein the second configuration information indicates the time slot occupied by the interference measurement window, and the second resource configuration information of each interfering base station indicates the time-frequency domain resource occupied by each measurement signal of the interfering base station, and in each interfering base station, the measurement signal corresponds to a beam one-to-one, and the directions of different beams are used differently; a first transmitting means for transmitting the second allocation information to the victim base station, transmitting second resource allocation information of the interfering base station to each interfering base station, and transmitting first resource allocation information to the victim base station, wherein the first resource allocation information includes an identifier of the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier of the first resource allocation information is used to have one-to-one correspondence with the victim base station. A cross-link interference measurement device characterized by:

85. the second configuration information includes one or more configuration parameters among a reference subcarrier spacing SCS of an interference measurement window, a length of the interference measurement window, a period of the interference measurement window, and an offset amount of the interference measurement window within one frame period; The reference SCS of the interference measurement window is a fixed SCS or an SCS of the victim base station; The length of the interferometric window is equal to or less than the frame period, the period of the interference measurement window is an integer multiple of the frame period; The offset of the interference measurement window within one frame period does not exceed the last time slot within the frame period.

85. The cross-link interferometry apparatus of claim 84.

86. The interference measurement window does not extend beyond the last time slot in the frame period.

86. The cross-link interferometry apparatus of claim 85.

87. If the victim base station and the interfering base station are full-duplex base stations, the interference measurement window occupies any one or more consecutive time slots; If the victim base station and the interfering base station are half-duplex base stations, the interference measurement window occupies any consecutive one or more designated time slots, the designated time slots are flexible time slots, or the designated time slots are uplink time slots of the victim base station and downlink time slots of the interfering base station; If the victim base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are downlink time slots of the interfering base station; If the victim base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies any consecutive one or more designated time slots, and the designated time slots are uplink time slots of the victim base station.

85. The cross-link interferometry apparatus of claim 84.

88. the interference measurement window is one or more, and an enabled interference measurement window is used for CLI measurement; and a second transmitting means adapted to transmit a second active message to the victim base station, the second active message including an identifier of an interference measurement window awaiting activation.

85. The cross-link interferometry apparatus of claim 84.

89. All measurement signals transmitted from each interfering base station include a synchronization information block (SSB) corresponding to a wide beam and / or a channel state information reference signal (CSI-RS) corresponding to a narrow beam, and a plurality of the narrow beams are included within the range of the wide beam.

85. The cross-link interferometry apparatus of claim 84.

90. The second resource allocation information of each interfering base station includes an indication parameter corresponding to the CSI-RS, and the indication parameter indicates that the CSI-RS is used for crosslink interference (CLI) measurement.

90. A cross-link interferometry apparatus as claimed in claim 89.

91. the victim base station is one or more; receiving means for receiving beam measurement results of cross-link interference (CLI) measurements transmitted from each victim base station; and determining means for determining a second restricted beam and a second recommended beam of each interfering base station based on each beam measurement result, wherein the second restricted beam is a beam waiting to be restricted and the second recommended beam is a beam waiting to be recommended.

85. A cross-link interferometry apparatus as claimed in claim 84.

92. The beam measurement results include an identifier of an interfering base station, an identifier of each of the measurement signals, and a CLI value of a beam corresponding to each of the measurement signals; or The beam measurement result includes an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes an identifier of a measurement signal corresponding to each of the first restricted beams, and the first recommended beam list includes an identifier of a measurement signal corresponding to each of the first recommended beams, the first restricted beams being beams whose CLI values ​​are greater than a first preset CLI threshold, and the first recommended beams being beams whose CLI values ​​are less than a second preset CLI threshold; or The beam measurement result includes an identifier of an interfering base station, a first restricted beam list, and a first recommended beam list, the first restricted beam list including an identifier of a measurement signal corresponding to each of the first restricted beams and a CLI value of each of the first restricted beams, and the first recommended beam list including an identifier of a measurement signal corresponding to each of the first recommended beams and a CLI value of each of the first recommended beams.

92. The cross-link interferometry apparatus of claim 91 .

93. The determination means determining a beam corresponding to each of the first measurement signals as a second restricted beam of the interfering base station transmitting the first measurement signals, the first measurement signals being measurement signals whose identifiers are included in any of the first restricted beam lists; Determine a beam corresponding to each second measurement signal as a second recommended beam of the interfering base station transmitting the second measurement signal, wherein the second measurement signal is a measurement signal whose identifier is not included in any of the first restricted beam lists and is included in any of the first recommended beam lists.

93. The cross-link interferometry apparatus of claim 92.

94. The determining means is used to determine a second restricted beam and a second recommended beam of each interfering base station based on a CLI value included in each beam measurement result when the beam measurement result does not include the first restricted beam list and the first recommended beam list.

93. The cross-link interferometry apparatus of claim 92.

95. The determination means When the target CLI value of any one of the measurement signals is greater than a first preset CLI threshold, determining that the beam corresponding to the measurement signal is a second restricted beam of the interfering base station transmitting the measurement signal; If each target CLI value of a measurement signal is less than or equal to the first preset CLI threshold and any target CLI value of the measurement signal is less than a second preset CLI threshold, determining that the beam corresponding to the measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal; When the CLI value included in the beam measurement result is a current reference signal received power RSRP of a measurement signal, the target CLI value is a current RSRP included in the beam measurement result, or the target CLI value is an RSRP determined based on the current RSRP and a historical RSRP included in the beam measurement result; If the CLI value included in the beam measurement result is an RSRP determined based on the current RSRP and the historical RSRP, the target CLI value is the RSRP included in the beam measurement result.

95. The cross-link interferometry apparatus of claim 94.

96. In each interfering base station, the ratio of the second restricted beam to all beams of the interfering base station is smaller than a preset ratio. In each interfering base station, the number of times the second restricted beam is restricted is greater than the number of times the other beams of the interfering base station are restricted.

96. A cross-link interference measurement device according to any one of claims 91 to 95.

97. a third transmitting means for transmitting a first active message to a target victim base station and a third active message to a target interfering base station, the first active message and the third active message including an identifier of a restricted window waiting to be activated, wherein, in the target victim base station, the restricted window waiting to be activated is a window restricting a beam that is the same as the pointing area of ​​a first restricted beam, and in the target interfering base station, the restricted window waiting to be activated is a window restricting the second restricted beam, the first restricted beam is a beam whose CLI value measured by the target victim base station is greater than a first preset CLI threshold, the target victim base station is a victim base station having the first restricted beam, and the target interfering base station is an interfering base station having a second restricted beam; and / or and a fourth transmitting means for transmitting a beam measurement result set of crosslink interference CLI measurements by each victim base station to the target interfering base station, the beam measurement result set including a second restricted beam list and a second recommended beam list, the second restricted beam list including identifiers of measurement signals corresponding to each of the second restricted beams of the target interfering base station, and the second recommended beam list including identifiers of measurement signals corresponding to each of the second recommended beams of the target interfering base station.

92. A cross-link interferometry apparatus as claimed in claim 91.

98. The first active message and the third active message further include first placement information of the bounded window awaiting activation, and the first placement information of the bounded window awaiting activation indicates a time slot occupied by the bounded window awaiting activation.

98. A cross-link interferometry apparatus as claimed in claim 97.

99. the first placement information of each restricted window includes one or more placement parameters among a reference subcarrier spacing SCS of the restricted window, a length of the restricted window, a period of the restricted window, and an offset amount of the restricted window within one frame period; The reference SCS of the restriction window is the SCS of the interfering base station; The length of the limiting window is less than or equal to the frame period, the period of the limiting window is an integer multiple of the frame period; The offset of the bounding window within one frame period does not exceed the last time slot within said frame period.

98. The cross-link interferometry apparatus of claim 97.

100. The bounded window does not extend beyond the last time slot in the frame period.

100. The cross-link interferometry apparatus of claim 99.

101. a base station comprising a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is used to store a computer program; When the processor executes the program stored in the memory, the processor is used to implement the steps of the cross-link interference measurement method according to any one of claims 1 to 20 or 21 to 33. A base station characterized by:

102. a controller comprising a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is used to store a computer program; When the processor executes the program stored in the memory, the processor is used to implement the steps of the cross-link interference measurement method according to any one of claims 34 to 50. A controller comprising:

103. A computer-readable storage medium having a computer program stored therein, the computer program implementing the steps of the cross-link interference measurement method according to any one of claims 1 to 20, 21 to 33, or 34 to 50 when executed by a processor. A computer-readable storage medium comprising:

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