Crosslink interferometry measurement method, crosslink interferometry 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 cross-link interference measurement method, a cross-link interference measurement apparatus, a base station, and a controller. [Background Art]

[0002] Beamforming technology is used in 5G-Adv communication systems to improve cell edge coverage, reduce interference between users, and enhance the overall performance of the system. In a 5G-Adv Flexible Time Division Duplex (F-TDD) system, Cross Link Interference (CLI) exists between base stations, and the degree of the CLI varies in different beam directions. CLI affects the reception of base stations and User Equipment (UE), reduces the received signal-to-noise ratio, increases the error rate, and consequently affects the overall performance of the 5G-Adv communication system. Therefore, in order to suppress CLI in different beam directions in a Flexible Time Division Duplex (F-TDD) communication system and improve the performance of the F-TDD communication system, it is necessary to adopt appropriate technical solutions. [Summary of Invention]

[0003] Embodiments of the present application aim to provide a cross-link interference measurement method, an apparatus, a base station, and a 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] According to a first aspect, embodiments of the present application provide a cross-link interference measurement method applied to a victim base station, the method comprising: receiving different measurement signals transmitted from an interfering base station using different beams within an interference measurement window, wherein the measurement signals are in one-to-one correspondence with the beams, and the different beams have different directions; This includes measuring the CLI value of the beam corresponding to each measurement signal based on each measurement signal.

[0005] In a second aspect, an embodiment of the present application provides a crosslink interference measurement method applicable to an interfering base station, wherein at least one measurement signal is located at the interfering base station, the time-frequency area resources occupied by some or all of the at least one measurement signal are within the interference measurement window, the measurement signals correspond one-to-one with beams, and the directions of the different beams are different, and the method is The acquisition of second resource allocation information of the interfering base station, wherein the second resource allocation information indicates the time-frequency area resource occupied by the at least one measurement signal. This includes transmitting a measurement signal to the damaged base station using a different beam based on the second resource placement information.

[0006] In a third aspect, an embodiment of the present application provides a crosslink interference measurement method applicable to a controller, the method being: The method involves obtaining second arrangement information for the interference measurement window of an affected base station and second resource arrangement information for the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, the second resource arrangement information for each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and in each interfering base station, the measurement signals correspond one-to-one with beams, and different beams have different directions. The method involves transmitting the second resource allocation information to the affected base station, transmitting the second resource allocation information of each interfering base station to the interfering base station, and transmitting the first resource allocation information to the affected base station, wherein the first resource allocation information includes an identifier for the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier for the first resource allocation information corresponds one-to-one with the affected base station.

[0007] In a fourth aspect, an embodiment of the present application provides a crosslink interference measuring device applicable to a damaged base station, the device being: A first receiving means used to receive different measurement signals transmitted from an interfering base station using different beams within an interfering measurement window, wherein the measurement signals correspond one-to-one with the beams and the directions of the different beams are different. The system includes a measuring means used to measure the CLI value of the beam corresponding to each of the measurement signals based on each measurement signal.

[0008] In a fifth aspect, an embodiment of the present application provides a crosslink interferometry device applied to an interferometry base station, wherein at least one measurement signal is located at the interferometry base station, the time-frequency area resources occupied by some or all of the at least one measurement signal are within the interferometry measurement window, the measurement signals correspond one-to-one with beams, and the beams have different directions, and the device is Acquisition means for acquiring second resource allocation information of the aforementioned interference base station, wherein the second resource allocation information is used to indicate the time-frequency area resource occupied by the at least one measurement signal, The system includes a transmitting means used to transmit a measurement signal to a damaged base station using different beams based on the second resource placement information.

[0009] In a sixth aspect, an embodiment of the present application provides a crosslink interference measuring device applied to a controller, the device being The acquisition means is used to acquire second arrangement information of the interference measurement window of an affected base station and second resource arrangement information of the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, and the second resource arrangement information of each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and in each interfering base station, the measurement signals correspond one-to-one with beams, and different beam directions are different. The first transmission means transmits the second resource placement information to the damaged base station, transmits the second resource placement information of each interfering base station to the interfering base station, and transmits the first resource placement information to the damaged base station, wherein the first resource placement information includes an identifier for the first resource placement information and the second resource placement information of each interfering base station, and the identifier for the first resource placement information is used to have a one-to-one correspondence with the damaged base station.

[0010] In a seventh aspect, an embodiment of the present application provides a base station comprising a processor, a communication interface, memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus. The aforementioned memory is used to store computer programs. The processor, upon executing the program stored in the memory, is used to implement a step of either the first or second embodiment of the method.

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

[0012] In a ninth aspect, an embodiment of the present application provides a computer-readable storage medium in which a computer program is stored, and when executed by a processor, the computer program realizes a step of any of the methods provided in the first, second, or third aspect.

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

[0014] In the technical solution provided by the embodiment of this application, the interfering base station transmits measurement signals to the affected base station using different beams, and the affected base station further measures the different measurement signals within the interference measurement window, thereby obtaining the CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Based on the CLI values ​​of the different beams, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of interference measurement at the affected base station and saving energy at the affected base station. [Brief explanation of the drawing]

[0015] The drawings described herein are for further understanding of the present application and constitute part of the present application. Illustrative embodiments and their descriptions are for illustrative purposes only and do not constitute an unwarranted limitation of the present application.

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

[0017] Hereinafter, in order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in more detail by way of examples with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application shall fall within the protection scope of the present application.

[0018] Hereinafter, terms in the embodiments of the present application are explained.

[0019] Macro base station: a large base station erected on a steel tower, generally having 3 sectors, covering all directions, with high transmission power, a large coverage area, and a large number of accommodated users.

[0020] Micro base stations are small base stations installed in buildings and densely populated areas. These base stations have a small volume, low power consumption, small coverage area, and a low number of users they can accommodate.

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

[0022] An aggressor base station is a base station that interferes with an affected base station in a Flexible Time Division Duplex (F-TDD) communication system. In the embodiments of this 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 the S time slot can be used for DL, UL, or Guard Period (GP). To improve network throughput, 5G commercial networks typically have a large number of DL time slots, resulting in fewer UL time slots. This limits UL transmission speed and increases UL transmission delay, which is detrimental to Ultra-Reliability Low Latency Communication (URLLC) applications such as automated control and control-to-control.

[0024] Flexible Time Division Duplex (F-TDD) communication systems are a viable technical means to solve the above problems. Also known as Dynamic TDD, F-TDD can flexibly allocate UL time slots and DL time slots according to the DL business conditions, thereby meeting the demands of dynamically changing business and improving the performance of 5G-Advanced communication systems. There are two typical network deployment scenarios for F-TDD communication systems. One is a single-layer network structure, where all base stations in the network are of the same type, for example, macro base stations or micro base stations. The other is a two-layer network structure, where the first layer of the network consists of macro base stations, which are generally located outdoors, and the second layer consists of micro base stations, which are generally located indoors.

[0025] In a single-layer network, different base stations use flexible frame structures. In a two-layer network, macro base stations can be configured with a frame structure primarily consisting of DLs; for example, a frame structure with five time slots is DDDSU, where D represents a DL time slot, S a special time slot, and U a UL time slot. Micro base stations in the second layer can be configured with a flexible frame structure; for example, a frame structure with five time slots is FFFFF, where F represents a flexible time slot. Micro base stations in the second layer can also be configured with a frame structure primarily consisting of ULs; for example, a frame structure with five time slots is DSUUU, where D represents a DL time slot, S a special time slot, and U a UL time slot.

[0026] Figure 1 shows a schematic diagram of different base stations in a two-layer network structure. Here, the base stations include gNB0 and gNB1, where gNB0 is a macro base station and its coverage is indicated by a dashed circle. gNB1 is a micro base station and its coverage is indicated by a solid circle. 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, with gNB0 transmitting DL data to UE0 and gNB1 receiving 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 interference between gNB-gNB CLI and UE-UE CLI differs depending on the beam direction.

[0027] The two types of CLI described above affect reception at base stations and UEs, reducing the received signal-to-noise ratio and increasing the error rate. As a result, they impact the overall performance of 5G-Advanced communication systems. Therefore, it is necessary to adopt appropriate technologies to suppress CLI in F-TDD communication systems and improve their performance. Coordinated scheduling between gNBs is a viable technology for suppressing CLI in F-TDD communication systems, but the premise of coordinated scheduling is that various system placement information must be exchanged between gNBs. This system placement information includes frame structure, bandwidth allocation, channel and signal allocation, and measurement reports of mutual interference between base stations.

[0028] To enable collaborative scheduling between base stations, suppress CLI in different beam directions in F-TDD communication systems, and reduce the impact of CLI on the performance of 5G-Adv communication systems, an embodiment of the present invention provides a CLI measurement method in which an interfering base station transmits a measurement signal to a damaged base station using a different beam, and the damaged base station further measures the measurement signal transmitted from the interfering base station to estimate the CLI values ​​of the different beams. Based on the CLI values ​​of the different beams, a corresponding CLI suppression technique can be obtained, supporting time-frequency resource scheduling between base stations, suppressing CLI in F-TDD communication systems, and reducing the impact of CLI on the performance of 5G-Adv communication systems.

[0029] The CLI measurement method provided by the embodiment of this application 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, the method being applied to a damaged base station, which can correspond to one or more interfering base stations, i.e., one or more interfering base stations interfering with the damaged base station. The CLI measurement method includes the following steps.

[0031] Step S21: Within the interferometric measurement window, different measurement signals are received from the interferometric base station using different beams, and the measurement signals correspond one-to-one with the beams, and the directions of the different beams are different.

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

[0033] In the technical solution provided by the embodiment of this application, the interfering base station transmits measurement signals to the affected base station using different beams, and the affected base station further measures the different measurement signals within the interference measurement window, thereby obtaining the CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Based on the CLI values ​​of the different beams, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of interference measurement at the affected base station and saving energy at the affected base station.

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

[0035] For example, the measurement signal is a Synchronization Signal Block (SSB), which is a unique 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-unique signal transmitted from an interfering base station and is a non-zero power signal. The above SSB corresponds one-to-one with a wide beam, that is, the base station transmits the SSB using a wide beam. The above CSI-RS corresponds one-to-one with a narrow beam, that is, the base station transmits the SSB using a narrow beam. Multiple narrow beams are contained within the range of one wide beam. In the embodiment of the present application, the wide beam corresponding to the SSB is called the SSB beam, and the narrow beam corresponding to the CSI-RS is called the CSI-RS beam.

[0036] At different interfering base stations, the placement of measurement signals (such as the SSB and CSI-RS mentioned above) may be the same or different. If the measurement signals at each interfering base station are placed in different time slots, the affected base station will need to perform CLI measurements in all time slots where the measurement signals are placed, which not only increases the complexity of the interference measurement at the affected base station but is also detrimental to the energy conservation of the affected base station. In the technical solution provided by the embodiment of the present invention, an interference measurement window is placed at the affected base station, and the affected base station performs CLI measurements of the beam only within the interference measurement window. This technique not only reduces the complexity of the interference measurement at the affected base station but also saves energy at the affected base station.

[0037] To enable the affected base station to effectively complete the beam CLI measurement, the interfering base station may place the measurement signals within an interferometric measurement window and transmit the measurement signals within that window. In other words, the interfering base station has one or more measurement signals, and these one or more measurement signals are included in one or more measurement signals transmitted within that interferometric measurement window.

[0038] In practical applications, base stations can be divided into full-duplex and half-duplex base stations. The interference measurement window occupies one or more consecutive time slots when the affected base station and the interfering base station are full-duplex base stations; that is, an interference measurement window can be placed in any position and is not restricted. When the affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. When the affected base station is a full-duplex base station and the interfering base station is a half-duplex base station, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are the downlink time slots of the interfering base station. When the affected base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

[0039] There may be one or more interference measurement windows; that is, one or more interference measurement windows may be located at the affected base station, each interference measurement window having a unique identifier (Identify, ID), and the activated interference measurement windows are used for CLI measurement; that is, the affected base station measures the CLI value of the beam corresponding to each measurement signal based on the measurement signals received within the activated interference measurement windows. To enable control of the activated interference measurement windows at the affected base station, a controller may be added to the F-TDD communication system, and as shown in Figure 3, the controller completes the arrangement and activation of the interference measurement windows at the affected base station, where Figure 3 represents a beam transmitting signals in an elongated elliptical pattern. However, the controller may be any base station in the F-TDD communication system, a Central Unit (CU) in the F-TDD communication system, or other devices in the F-TDD communication system, but is not limited to these. The controller can complete the configuration of the interference measurement window via a loopback link (Xn interface or F1 interface) or Over-the-Air Technology (OTA) and exchange the necessary configuration information required by the affected base station and the interfering base station in CLI measurements. Here, 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 for channels and signals may include SSB, CSI-RS, Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH) signals, Physical Uplink Control Channel (PUCCH) signals, Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Sounding Reference Signal (SRS), and others.

[0040] In embodiments of the present invention, the controller can transmit interference measurement window placement information to the affected base station. For convenience of explanation and understanding, the interference measurement window placement information will hereinafter be abbreviated as second placement information. After receiving the second placement information, the affected base station can activate the default interference measurement window among all interference measurement windows based on the received second placement information of the interference measurement windows; that is, it enables 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 or other designated interference measurement window placed at the affected base station. In embodiments of the present invention, the controller can also transmit interference measurement window placement information to the interfering base station, and after receiving the second placement information, the interfering base station can activate the default interference measurement window among multiple interference measurement windows.

[0041] The controller sends an active message, such as a second active message, to the affected base station, which includes an identifier for an interference measurement window awaiting activation. After receiving the second active message from the controller, the affected base station, upon reaching the next frame cycle, deactivates the activated interference measurement window and activates an interference measurement window awaiting activation based on the second active message. In this way, the controller activates only one interference measurement window at the affected base station at a time, avoiding mutual interference between multiple interference measurement windows and improving the accuracy of beam CLI measurements. The controller may send a second active message to the interfering base station as described above to activate the necessary interference measurement windows.

[0042] Furthermore, in the embodiment of the present invention, when the controller places interference measurement window placement information on the damaged base station, the damaged base station can activate the default interference measurement window. If it is necessary to change the activated interference measurement window, the controller sends a second active message to the damaged base station to change the activated interference measurement window. As a result, after placing the interference measurement window placement information, the damaged base station activates only one interference measurement window, ensuring CLI measurement.

[0043] In the embodiments of the present invention, the second placement information for one interference measurement window indicates the time slot occupied by the interference measurement window. Here, the second placement information for each interference measurement window includes one or more placement parameters from the reference subcarrier space (SCS) of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period.

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

[0045] To avoid the SCS of the interfering base station and the affected 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 specific SCS; that is, the reference SCS is a fixed SCS. For example, Frequency Range (FR) 1 is fixed to 15 kHz, and FR 2 is fixed to 60 kHz.

[0047] Method 2: The reference SCS is determined based on the SCS of the affected base station; that is, the reference SCS may be the SCS of the affected base station. In this way, the affected base station and the interfering base station can determine other parameters such as the length, period, and offset of the interference measurement window using their own SCSs. In Method 2, the reference SCS values ​​for the interference measurement window may be {15KHz, 30KHz, 60KHz, 120KHz}.

[0048] Compared to Method 2, Method 1 does not require the introduction of new placement parameters, and if the frequency range is clear, the controller, interfering base station, and affected base station can determine the reference SCS. However, if the actual SCS of the interfering base station and the affected base station differ from the reference SCS, extra computation is incurred. In the embodiment of the present invention, if the reference SCS is not placed, the affected base station can determine the reference SCS using Method 1 by default. If the placement of the reference SCS is clarified, the affected base station determines the reference SCS using Method 2.

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

[0050] The length of the interferometry window is directly related to the frame period, and once the reference SCS is determined, the number of time slots within one frame period is determined. The maximum length of the interferometry window does not exceed the frame period. Taking the unit of the interferometry window as time slots as an example, the values ​​of the length of the interferometry window may 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 interference measurement window is an integer multiple of the frame period.

[0053] The period of the interferometry window has a direct relationship with the frame period, and the period of the interferometry window can be set to an integer multiple of the frame period. For example, if the unit of the interferometry window is a time slot, the value of the period of the interferometry 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 interferometry window does not exceed 8*160=1280, that is, the value of the period of the interferometry 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 SCS value of the base station is 120 kHz, each time slot occupies 0.125 ms, so 0.125 ms * 1280 = 160 ms. As can be seen from this, the period of the interference measurement window does not exceed 160 ms.

[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 offset amount of the interference measurement window is the specific offset amount of the interference measurement window within the frame period, and the offset amount of the interference measurement window is within the range of the frame period. Taking the unit of the interference measurement window as a time slot as an example, the value of the offset amount of the interference measurement window within one frame period may be {0, ..., 159}. In this case, the sum of the offset amount of the interference measurement window and the length of the interference measurement window may exceed the frame period, and the portion of the interference measurement window that exceeds the frame period becomes invalid, that is, the portion of the interference measurement window that exceeds the frame period cannot be used for CLI measurement.

[0057] To improve the completeness and accuracy of beam CLI measurements, 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. In other words, the interferometry window does not extend beyond the last time slot within the frame period, meaning the interferometry window is entirely within one frame period, and the entire interferometry window can be used for CLI measurements.

[0058] The second placement information of the above interference measurement window can also be converted to units of ms, and the units of the above placement can also be converted to ms depending on the time length of the time slot in the reference SCS.

[0059] In the embodiments of the present invention, the maximum number of interference measurement windows that can be placed at the affected base station may be 2, 4, 8, etc. If it is necessary to update an activated interference measurement window, the controller may send an identifier of the interference measurement window that needs to be activated to the affected base station by an additional message, such as the second active message described above, and the second active message becomes effective in the period of the next interference measurement window following the period of the interference measurement window to which the second active message is sent, i.e., it becomes effective in the next frame period. In the embodiments of the present invention, the controller may, but is not limited to, send second placement information of interference measurement windows to the interfering base station and activate the interference measurement windows that need to be activated by the second active message.

[0060] Let's take the example where the measurement signal is SSB, and the frame structure of both the affected base station and the interfering base station is DFFFU, with D indicating the DL time slot, U indicating the UL time slot, and F indicating the flexible time slot. One base station is one cell, and the arrangement of the interference measurement window and SSB beam is as shown in Figure 4. Figure 4 has four cells, namely cells 1-3 of the three interfering base stations and cell 4 of the affected base station. In cell 1, the SSB is located in the D time slot and the first F time slot; in cell 2, the SSB is located in the D time slot; and in cell 3, the SSB is located in the D time slot, the first F time slot, and the second F time slot. In Figure 4, only a portion of the SSB beam is shown, as shown in the teardrop-shaped pattern. In cell 4 of the affected base station, the interference measurement window is located in the first F time slot and the second F time slot. As a result, the affected base station can measure the CLI via the SSB beam to the affected base station in cell 1 and cell 3 during the interferometry measurement window, while in cell 2, since SSB is not placed in the first and second F time slots, the affected base station cannot measure the CLI via the SSB beam to the affected base station in cell 2 during the interferometry measurement window.

[0061] SSBs can only be placed in the first half of a frame within the SSB placement period, and the interference measurement window may not be able to fully cover all SSBs, such as the SSB in cell 2 in Figure 4. To enable the affected base station to measure all possible interference beams, multiple CSI-RSs can be placed in the interference measurement window, with each CSI-RS corresponding to one narrow beam, thereby achieving beam coverage. Regarding the mapping relationship between wide beams and narrow beams, one wide beam range contains multiple narrow beams, for example, 2, 4, 8, etc. The specific number of narrow beams and the corresponding frequency area resource placement for the CSI-RS can be placed by the controller based on the number of SSBs of the interfering base station and the location of the interference measurement window in order to place the CSI-RS in the interference measurement window and transmit specific placement information to the interference measurement window. As shown in Figure 5, Figure 5 shows the interference measurement window and the placement of CSI-RS beams, where each SSB beam range contains four CSI-RS beams, and each CSI-RS beam corresponds to one CSI-RS. Figure 5 shows a portion of the CSI-RS beams as shown in the elliptical pattern. The grid-hatched rectangular boxes indicate the resource layout of CSI-RS.

[0062] In the 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 multiple CSI-RS beams corresponding to several CSI-RS beams within the range of 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 multiple CSI-RS beams corresponding to several CSI-RS beams within the range of 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 multiple CSI-RS beams corresponding to several CSI-RS beams within the range of the SSB beam.

[0063] In the embodiments of this application, the measurement signals (e.g., the SSB and CSI-RS mentioned above) can be divided into measurement signals for CLI measurement and measurement signals for CLI beam management. The two measurement signals for different applications can be individually configured, with one signal for CLI measurement and the other for CLI beam management. The two measurement signals for different applications can also be configured as the same measurement signal, allowing one measurement signal to be used for both CLI measurement and CLI beam management. In the embodiments of this application, the two measurement signals for different applications are collectively referred to as the measurement signal.

[0064] The prerequisite for performing CLI measurements between base stations is that the synchronization of placement information between the base stations has been completed. Among multiple base stations controlled by a single controller, there may be multiple interfering base stations and multiple damaged base stations at the same time. The controller can allocate time-frequency area resources to the interfering base station that are occupied by the measurement signals. That is, it transmits resource placement information for the measurement signals, such as the second resource placement information of the interfering base station, to the interfering base station, and the second resource placement information indicates the time-frequency area resources occupied by each of the measurement signals of the interfering base station. Based on the second resource placement information, the interfering base station can transmit measurement signals to the damaged base station using different beams. At the same time, the controller can also inform the damaged base station of the second resource placement information of the interfering base station, thereby enabling CLI measurements of subsequent beams.

[0065] The controller places resource allocation information for CLI measurement, such as first resource allocation information, for each affected base station. The first resource allocation information includes the ID of the first resource allocation information and the second resource allocation information of each interfering base station, with the ID of the first resource allocation information corresponding one-to-one with the ID of the affected base station. The affected base station receives the first resource allocation information transmitted from the controller, and then completes the beam CLI measurement based on the first resource allocation information, obtaining specific beam measurement results for each measurement signal, and can restrict the beam that the corresponding interfering base station transmits data to.

[0066] An interfering base station may deploy one beam or multiple beams. Multiple beams can be either wide beams or narrow beams, and both types of beams can coexist. Therefore, an interfering base station can deploy SSB resources corresponding to wide beams and CSI-RS resources corresponding to narrow beams. SSB resource allocation information is also called SSB beam resource allocation information, and CSI-RS resource allocation information is also called CSI-RS beam resource allocation information.

[0067] Regarding wide beams, each wide beam corresponds to SSB, and wide beams are also called SSB beams. In order for the affected base station to measure the CLI value using the interfering base station's SSB beam, it is necessary to exchange SSB beam resource allocation information (such as the second resource allocation information mentioned above) between different base stations. This exchange process can be carried out by a controller, which transmits the SSB beam resource allocation information of each interfering base station to the affected base station.

[0068] The resource allocation information for all interfering base stations' SSB beams constitutes a single SSB allocation set. Within this SSB allocation set, the resource allocation information for one interfering base station's SSB beams may include the base station's unique ID and the allocation information for all SSBs within that base station. Each SSB's allocation information may include its resource ID, period, and the location of the SSB's time-frequency area resource. The SSB's allocation information indicates the time-frequency area resource occupied by each SSB.

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

[0070] For narrow beams, the controller can arrange a measurement signal corresponding to each narrow beam, thereby establishing a one-to-one correspondence between the narrow beam and the measurement signal. Here, the signal for CLI measurement is 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 it from CSI-RS currently used for other applications, in the embodiment of this application, one instruction parameter corresponding to CLI is introduced into the CLI-RS resource allocation information (for example, the second resource allocation information described above), for example, cli-info. When the CLI-RS resource allocation information includes an instruction parameter corresponding to CLI, it indicates that the CLI-RS is used for CLI measurement of the corresponding beam.

[0071] In order for the affected base station to measure the CLI value of the interfering base station's CLI-RS beam, CLI-RS resource allocation information needs to be exchanged between different base stations. In practice, the controller transmits the CLI-RS resource allocation information of each interfering base station to the affected base station in order to complete the exchange of beam information, including resource allocation information, between base stations.

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

[0073] The number of CLI-RS resource placement information entries and the ID of each CLI-RS resource placement information entry at each interfering base station can be set according to the actual situation. For example, the maximum number of deployable CLI-RS resource placement information entries may be 16, 32, or 64. CLI-RS resource placement information can include multiple CLI-RS resource sets, each CLI-RS resource set containing multiple CLI-RS resources, and each CLI-RS resource having a unique ID. The placement of CLI-RS resource sets and CLI-RS resources can refer to the placement of CSI-RS resources in current 5G communication systems, but the difference is that the specified parameter cli-info described above must be additionally introduced to the CSI-RS resource set to indicate that the CSI-RS resource set is to be used for beam CLI measurement. The CSI-RS signal type for beam CLI measurement may be periodic, aperiodic, or semi-persistent.

[0074] The interfering base station transmits a measurement signal using different beams based on the second resource placement information described above. The affected 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 a measurement signal such as SSB or CLI-RS within the interference measurement window and obtain the CLI values ​​of the different beams between the interfering base station and the affected base station, i.e., obtain the respective CLI values ​​for each beam. In the embodiments of the present invention, the CLI values ​​may be determined based on, but are not limited to, the Reference Signal Received Power (SS-RSRP) or the Received Signal Strength Indicator (RSSI).

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

[0076] For SSB beams and SSBs corresponding to SSB beams, the affected base station can measure the RSRP of each SSB of the interfering base station within the interference measurement window, based on the Secondary Synchronization Signals (SSS) of each SSB of the interfering base station, and record it as CLI-SSB-RSRP. For each SSB, the affected 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 above SSB.

[0077] For CLI-RS corresponding to a CLI-RS beam, the affected base station measures the RSRP of each CLI-RS of the interfering base station within the interference measurement window and records it as CLI-RSRP. For each CLI-RS, the affected 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 CLI-RS resource placement information ID + CSI-RS resource set ID + CSI-RS resource ID. In the embodiment of the present invention, multiple CLI-RS resource placement information can be placed in one base station, each CLI-RS resource placement information corresponds to multiple CSI-RS resource sets, and each CSI-RS resource set corresponds to multiple CSI-RS.

[0078] At the damaged base station, the beam measurement results of all SSB beams and CLI-RS beams obtained from the measurements, for example, the CLI-SSB-RSRP and CLI-RSRP mentioned above, can be divided into short-term (ST) CLI values ​​and long-term (LT) CLI values. The short-term CLI values ​​are, in other words, the CLI-SSB-RSRP and CLI-RSRP obtained for each CLI measurement as described above. That is, the damaged base station can measure the current RSRP of each measurement signal and obtain 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 the CLI value obtained by the affected base station by filtering or arithmetic averaging the short-term CLI values ​​within a long period of time. In other words, the affected base station can measure the current RSRP for each measurement signal and update the long-term CLI value for the beam corresponding to each measurement signal based on the current RSRP and historical RSRP for each measurement signal. Here, the historical RSRP may be the long-term CLI value obtained in the previous measurement. The affected 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, RSRPA Ins (t) represents the current RSRP, i.e., the RSRP at the current time t. 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, with a range of [0, ..., 1], where the value of γ can be selected according to the actual situation. RSRP Avg The initial value can be set according to the actual traffic and environment, for example, RSRP Avg The initial value is set to 0 by default.

[0082] In the embodiment of the present invention, the historical RSRP may be, but is not limited to, the short-term CLI values ​​for each time point acquired before the current time. In this case, the affected base station can calculate the long-term CLI value using the following equation (2).

[0083] [Formula 2]

number

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

[0085] The above calculation of long-term CLI values ​​can also be performed by the controller, which calculates them using equation (1) or equation (2) based on historical RSRP and short-term CLI values ​​reported from the affected base station.

[0086] In the embodiment of the present invention, the controller can transmit to the damaged base station via the reporting arrangement information in the beam measurement results which CLI values ​​to acquire and which CLI values ​​to report to the controller.

[0087] In some embodiments, the embodiments of the present application provide a method for measuring CLI interference applied to an affected base station, as shown in Figure 6, which may include the following steps.

[0088] Step S61: Receive different measurement signals transmitted from the interfering base station using different beams within the interfering measurement window, where the measurement signals correspond one-to-one with the beams, and the directions of the different beams are different. This is the same as step S21 above.

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

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

[0091] Step S64: Send beam measurement results to the controller.

[0092] In the technical solution provided by the embodiment of the present invention, the affected base station can measure the respective CLI values ​​of each beam, generate corresponding beam measurement results based on the reported placement information placed by the controller, and transmit the beam measurement results to the controller. Subsequently, the controller can perform cooperative scheduling between the interfering base station and the affected base station based on the beam measurement results, that is, schedule time-frequency area resources between the interfering base station and the affected base station, for example, by temporarily suspending the transmission of the interfering base station's downlink channel or signal, reducing the transmission power of the downlink channel or signal, or notifying the affected base station to temporarily suspend UL scheduling, thereby solving the problem that the interfering base station and the affected base station cannot independently complete cooperative scheduling.

[0093] In step S63 above, CLI measurements are performed to measure the short-term CLI value or long-term CLI value of each beam. After that, the damaged base station generates beam measurement results according to the reporting type in the reporting placement information.

[0094] The following methods can be used to specify the type of information to be reported in the report placement information.

[0095] Method 1: Report everything. That is, the affected base station reports the beam measurement results for all beams to the controller. In this case, the beam measurement results include the identifier of the interfering base station, the identifier of each measurement signal, and the CLI value of the beam 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}, and so on.

[0096] In this case, the controller makes determinations based on the respective CLI values ​​of each beam at each interfering base station, determining the necessary and recommended beams to restrict at each interfering base station.

[0097] In the embodiments of the present invention, there may be multiple damaged base stations, and in order to determine the beam measurement results of each damaged base station and perform accurate collaborative scheduling, the beam measurement results may further include the ID of the damaged base station.

[0098] Method 2: Partial reporting. If the RSRP of a measurement signal is greater than the first preset CLI threshold, the beam corresponding to that measurement signal is a limiting beam, and the beam corresponding to that measurement signal interferes with the affected base station. For the sake of distinction and understanding, in the embodiment of this application, the limiting beam corresponding to a measurement signal whose RSRP is greater than the first preset CLI threshold is abbreviated as the first limiting beam, and the affected base station generates beam measurement results for the first limiting beam. If the RSRP of a measurement signal is less than the second preset CLI threshold, the beam corresponding to that measurement signal is a recommended beam. For the sake of distinction and understanding, in the embodiment of this application, the recommended beam corresponding to a measurement signal whose RSRP is less than the second preset CLI threshold is abbreviated as the first recommended beam, and the affected base station generates beam measurement results for the first recommended beam. In other words, if a first limiting beam or a first recommended beam exists among all the beams used by the interfering base station, beam measurement results for the first limiting beam or the first recommended beam are generated, and furthermore, the beam measurement results for the first limiting beam or the first recommended beam are reported. The RSRP of the above measurement signal is the CLI value of the beam corresponding to the measurement signal.

[0099] If a partial reporting method is adopted, the beam measurement results may include the identifier of the interfering base station, a first restricted beam list, and a first recommended beam list. The first restricted beam list includes the identifier of the measurement signal corresponding to each first restricted beam and the CLI value for each first restricted beam, and the first recommended beam list includes the identifier of the measurement signal corresponding to each first recommended beam and the CLI value for each first recommended beam. A first restricted beam (Forbidden Beam) is a beam whose CLI value is greater than the first preset CLI threshold, and which seriously interferes with the reception of the affected base station, so the affected base station suggests that the interfering base station avoid using it. A first recommended beam (Preferred Beam) is a beam whose CLI value is less than the second preset CLI threshold, and which the affected base station recommends for use by the interfering base station. The first preset CLI threshold and the second preset CLI threshold can be set according to actual demand. Here, the identifier of the interfering base station, the first restricted beamlist, and the first recommended beamlist have a corresponding relationship. For example, one identifier of an interfering base station corresponds to one first restricted beamlist and one first recommended beamlist, thereby facilitating the rapid and accurate determination of the required and recommended beams restricted by each interfering base station. For example, beam measurement results include {interfering base station identifier 1, first restricted beamlist 1, first recommended beamlist 1}, {interfering base station identifier 2, first restricted beamlist 2, first recommended beamlist 2}, and so on.

[0100] If a partial reporting method is adopted, the beam measurement results may include the identifier of the interfering base station, a first limited beamlist, and a first recommended beamlist, where the first limited beamlist includes the identifier of the measurement signal corresponding to each of the first limited beams, and the first recommended beamlist includes the identifier of the measurement signal corresponding to each of the first recommended beams. Here, the affected base station reduces the information it reports to the controller and saves bandwidth resources. There is a correspondence between the interfering base station identifier, the first limited beamlist, and the first recommended beamlist. For example, the beam measurement results may include {interfering base station identifier 1, first limited beamlist 1, first recommended beamlist 1}, {interfering base station identifier 2, first limited beamlist 2, first recommended beamlist 2}, etc.

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

[0102] Regarding method 1, reporting all beam measurement results occupies a large amount of bandwidth resources, whereas method 2 can conserve bandwidth resources. In practice, the controller can configure whether the beam measurement results reported from the damaged base station include ST CLI values ​​or LT CLI values, and whether all or part of them are reported.

[0103] The controller may assign the same reporting type to all base stations it controls, or it may assign different reporting types. If the LI CLI value is calculated by the controller, the controller must, but is not limited to, assign the reporting type of the affected base station to include the ST CLI value and full reporting in the beam measurement results. In practice, to reduce the complexity of the controller, all base stations controlled by the controller use the same reporting type. For example, the reporting type used by all base stations controlled by the controller is to include the ST CLI value in the beam measurement results and report everything.

[0104] In embodiments of the present invention, if the reporting type of the affected base station is to report all, the beam measurement results may include an SSB beamlist and a CLI-RS beamlist, where the SSB beamlist may include an identifier of the measurement signal corresponding to each SSB beam and the CLI value of each SSB beam, and the CLI-RS beamlist may include an identifier of the measurement signal corresponding to each CLI-RS beam and the CLI value of each CLI-RS beam. The SSB beamlist and the CLI-RS beamlist include an identifier of the measurement signal corresponding to each of all beams of the interfering base station and the CLI value of each beam.

[0105] If the reporting type for a damaged base station is partial reporting, the beam measurement results will be divided into a first restricted beamlist, a restricted SSB beamlist, and a restricted CLI-RS beamlist, and a first recommended beamlist, a recommended SSB beamlist, and a recommended CLI-RS beamlist. The restricted SSB beamlist includes the identifier of the measurement signal corresponding to the SSB beam that needs to be restricted and the CLI value of the SSB beam; the restricted CLI-RS beamlist includes the identifier of the measurement signal corresponding to the CLI-RS beam that needs to be restricted and the CLI value of the CLI-RS beam; the recommended SSB beamlist includes the identifier of the measurement signal corresponding to the recommended SSB beam that needs to be restricted and the CLI value of the SSB beam; and the recommended CLI-RS beamlist includes the identifier of the measurement signal corresponding to the CLI-RS beam that needs to be recommended and the CLI value of the CLI-RS beam.

[0106] In the embodiments of the present invention, if the reporting type of the damaged base station does not match the list included in the deployed beam measurement results, the damaged base station does not need to report the beam measurement results to the controller. For example, if the deployed beam measurement results include an SSB beamlist and a CLI-RS beamlist, and the reporting type is partial reporting, the damaged base station does not need to report the beam measurement results to the controller.

[0107] After acquiring the beam measurement results, the affected base station performs step S64 and then reports the beam measurement results to the controller for collaborative scheduling.

[0108] The beam measurement results may be reported periodically or as event-triggered reports.

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

[0110] In the case of an event-triggered report, the affected base station reports the beam measurement results to the controller when the pre-configured trigger conditions are met. The pre-configured trigger conditions are that the first limiting beam changes and / or the first recommended beam changes among the beams corresponding to at least one measurement signal. In other words, the pre-configured trigger conditions are that the identifier of the measurement signal included in the first limiting beam list at the current time is not exactly the same as the identifier of the measurement signal included in the first limiting 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 exactly 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 method for the corresponding beam measurement results may be periodic or event-triggered. For aperiodic or semi-sustained measurement signals, the reporting method for the corresponding beam measurement results may be event-triggered.

[0112] In the embodiment of the present invention, there may be multiple damaged base stations, and in order to determine the CLI measurement results of each damaged base station and perform accurate collaborative scheduling, the beam measurement results may also include the ID of the damaged base station. The ID of the damaged base station corresponds one-to-one with the identifier of the first resource placement information.

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

[0114] The controller performs collaborative scheduling based on beam measurement results for different beams from different damaged base stations.

[0115] The collaborative scheduling process involves the controller receiving beam measurement results reported by each affected base station, determining all sets of beam measurement results that interfere with other base stations from each interfering base station, and then transmitting beam information corresponding to each measurement signal in that beam measurement result set to each interfering base station. Based on this beam information, the interfering base stations avoid scheduling downlink transmissions on the interfering beams as much as possible. The affected base stations can then schedule uplink transmissions on the interfering beams based on the determined first limiting beam and first recommended beam. The beam measurement result set includes a second limiting beam list and a second recommended beam list, where the second limiting beam is a beam awaiting limiting and the second recommended beam is a beam awaiting recommendation, and the beam information may include the index of the measurement signal corresponding to the beam and the identifier of the interfering base station.

[0116] Beam measurement results reported from affected base stations include beam measurement results from different beams of different interfering base stations. For a given interfering base station, its beam measurement results may come from different affected base stations. The controller can consolidate all beam measurement results reported from each affected base station, distinguish between beam measurement results from different interfering base stations, and perform unified collaborative scheduling.

[0117] For all beam measurement results from an interfering base station, the controller determines which beams from that base station interfere with other base stations based on the correspondence between these beams and the measured signals. The controller can determine whether the interfering beam is determined based on the ST CLI value or the LT CLI value. The interfering beam is the beam that interferes with other base stations, and the interfering beam may be the first limiting beam or the second limiting beam described above.

[0118] If the LT CLI value is required and the affected base station reports the ST CLI value, the controller can calculate the LT CLI value from the ST CLI value according to equation (1) above. If the controller places the affected base station and reports the LT CLI value, the controller cannot determine the interference beam of the interfering base station, i.e., the second limiting beam, using the ST CLI value. Alternatively, the interference beam of the interfering base station can also be determined based on the type reported by the affected base station, as follows.

[0119] A. The reporting type for damaged base stations is to report all of them.

[0120] If the reporting method for beam measurement results is to report all results, the controller can determine which beams interfere and which do not, i.e., the second limiting beam and the second recommended beam.

[0121] The controller and the damaged base station use the same method for determining the second limiting beam and the second recommended beam. The first preset CLI threshold and the second preset CLI threshold of the controller and the damaged base station can be set as pre-configured fixed values, or they can be determined based on the algorithms of the controller and the damaged base station themselves, and are not particularly limited.

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

[0123] If the reporting method for beam measurement results is partial reporting, the controller can determine the second limiting beam and second recommended beam of the interfering base station using the first limiting beam and first recommended beam reported from the affected base station.

[0124] The second limiting beam and the second recommended beam can include an SSB beam and a CLI-RS beam, where the SSB beam corresponds one-to-one with an SSB resource and the CLI-RS beam corresponds one-to-one with a CLI-RS resource. In practice, a beam from an interfering base station is the first limiting beam for the affected base station and the first recommended beam for other affected base stations, and since limiting beams have a higher priority, that beam is considered the second limiting beam.

[0125] For example, if the affected base station reports some of the beam measurement results, and the beam measurement results include a first limiting beamlist and a first recommended beamlist, the measurement signals whose identifiers are included in either of the first limiting beamlists are called first measurement signals, and the measurement signals whose identifiers are included in either of the first recommended beamlists are called second measurement signals. The controller can determine the beam corresponding to each first measurement signal as the second limiting beam of the interfering base station transmitting the first measurement signal, and the beam corresponding to each second measurement signal as the second recommended beam of the interfering base station transmitting the second measurement signal.

[0126] By using the requirement that all affected base stations report, and if the beam measurement results do not include the first limiting beamlist and the first recommended beamlist, each beam measurement result for a single measurement signal includes the CLI value of that measurement signal. In other words, for a single measurement signal, multiple CLI values ​​of that measurement signal can be obtained from multiple beam measurement results. The controller can determine the second limiting 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 that the beam corresponding to a measurement signal is the second limiting beam of the interfering base station transmitting the measurement signal if any of the target CLI values ​​of a measurement signal are greater than the first preset CLI threshold. The controller determines that the beam corresponding to a measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal if all of the target CLI values ​​of a measurement signal are less than or equal to the first preset CLI threshold, and any of the target CLI values ​​of the measurement signal are less than the second preset CLI threshold.

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

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

[0129] After receiving beam information for the second limiting beam and the second recommended beam, the interfering base station limits the second limiting beam, for example, restricting the transmission of data to the user device using a beam in the same direction as the second limiting beam. In the embodiment of the present invention, the second limiting beam prevents the affected base station from being unable to perform normal CLI measurements by limiting only data transmission other than the measurement signal, without limiting the measurement signal.

[0130] In the embodiment of the present invention, since all beams of a single interfering base station may interfere with other base stations, if the interfering base station restricts scheduling with these beams, there will be no data transmission at that base station, affecting its performance. To avoid this situation, the controller can avoid setting all beams of the interfering base station as second-limiting beams by setting an upper limit on the number of second-limiting beams. The number of second-limiting beams is set at a certain percentage depending on the total number of beams of the interfering base station. For example, in an interfering base station, the ratio of second-limiting beams to all beams of the interfering base station is smaller than a preset percentage, and the preset percentage can be set according to the actual demand. For example, the preset percentage can be {10%, 20%, 30%, 50%, ..., 90%}. Also, the number of times a second-limiting beam is limited is greater than the number of times other beams of the interfering base station are limited. In other words, the selection of second-limiting beams can be determined from beams that are determined as second-limiting beams to beams that are determined as second-limiting beams more often to beams that are determined as second-limiting beams less often. This minimizes CLI.

[0131] On the other hand, in reality, some users may be semi-fixed users who do not move for long periods, and restricting beams to these users for extended periods would affect their normal data transmission. In this case, the controller can set up a restriction window, where, at the interfering base station, the restriction window is a window that restricts the second restricted beam, and at the affected base station, the restriction window is a window that restricts the same beam as the pointed 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, and the affected base station is not restricted from receiving data using the same beam as the pointed 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, and the affected base station is restricted from receiving data using the same beam as the pointed area of ​​the first restricted beam.

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

[0133] In some embodiments, the controller sends an active message, such as a first active message, to the affected base station, which includes an identifier for a restriction window awaiting activation. This restriction window is a window that restricts the same beam as the directional area of ​​the first restriction beam. After receiving the first active message from the controller, the affected base station deactivates the activated restriction window and activates the restriction window awaiting activation based on the first active message when it reaches the next frame cycle. Within the activated restriction window, the affected base station can receive data transmitted from the user equipment using beams in any direction. The affected base station reduces the impact of CLI by restricting the reception of data transmitted from the user equipment using the same beam as the directional area of ​​the first restriction beam outside the activated restriction window.

[0134] The controller sends an active message, such as a third active message, to the affected base station. The third active message includes an identifier for a restriction window awaiting activation, which is the window that restricts the second restriction beam. After the interfering base station receives the third active message from the controller, when it reaches the next frame cycle, it deactivates the activated restriction window and activates the restriction window awaiting activation based on the third active message. Within the activated restriction window, the interfering base station is restricted from transmitting data to user equipment using the second restriction beam, but can transmit data to user equipment using the second recommended beam, thereby reducing the impact of the CLI. Outside the activated restriction window, the interfering base station can transmit data to user equipment using beams in any direction, ensuring a certain degree of performance for the interfering base station.

[0135] Here, there may be one or more restriction windows, each restriction window having a unique ID, and only one restriction window may be activated at a time, i.e., only one restriction window may be enabled at a time, and the enabled restriction window may be used for beam restriction. The controller may transmit first placement information for multiple restriction windows to the interfering base station or the affected base station. To ensure the quality of communication, after receiving the first placement information for a restriction window, the interfering base station and the affected base station may activate a default restriction window among all the restriction windows based on the received first placement information for the restriction window, and the first placement information indicates the time slot that the restriction window occupies. Here, the default restriction window may be the first restriction window that is placed. If it is necessary to adjust the restriction windows, the controller may send a first active message to the affected base station and a third active message to the interfering base station. In the embodiment of the present application, in order to conserve resources of the interfering base station and the affected base station, the interfering base station and the affected base station may activate 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 affected base station begin restricting the beam they use after the restriction window has been enabled.

[0136] In this way, the controller activates only one restriction window at a time, thus avoiding excessive restriction time that could affect data transmission. Furthermore, in the embodiment of this invention, once the controller places the restriction window placement information on the interfering base station and the affected base station, the interfering base station and the affected base station can activate the default restriction window. If it is necessary to change the activated restriction window, the controller sends an active message to the interfering base station and the affected base station to change the activated restriction window. As can be seen from this, after placing the restriction window placement information, the interfering base station and the affected base station activated one restriction window to ensure data transmission.

[0137] In the embodiments of the present application, the placement information for the limiting window indicates the time slot occupied by the limiting window. For convenience of explanation and understanding, the placement information for the interference measurement window will hereinafter be abbreviated as the second placement information. In the embodiments of the present application, if the controller cannot determine the placement information that fits the limiting window, the controller may carry the first placement information for the necessary limiting window awaiting activation in the first active message and the third active message. Based on the first placement information for the limiting window awaiting activation, when the next frame cycle is reached, the interfering base station and the affected base station activate the limiting window awaiting activation in the time slot indicated by the first placement information for the limiting window awaiting activation. The first placement information includes one or more placement parameters from the reference SCS of the limiting window, the length of the limiting window, the period of the limiting window, and the offset amount of the limiting window within one frame cycle.

[0138] (1) The reference SCS for the restriction window may be the SCS of the interfering base station, and no additional settings are required.

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

[0140] The length of the limit window is directly related to the frame period, and once the reference SCS is determined, the number of time slots within one frame period is determined. The maximum limit window does not exceed the frame period. Taking the unit of the limit window as a time slot as an example, the length of the limit window may 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 limit window length is a maximum of 20 time slots, and if the frame period is 160 time slots, the limit window length is a maximum of 160 time slots.

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

[0143] The period of the limit window is directly related to the frame period, and the period of the limit window can be set to an integer multiple of the frame period. For example, if the unit of the limit window is a time slot, the value of the period of the limit 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 limit window does not exceed 8*160=1280, that is, the value of the period of the limit 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 SCS value for the base station is 120KHz, each time slot occupies 0.125ms, so 0.125ms * 1280 = 160ms. As can be seen from this, the period of the limiting window does not exceed 160ms.

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

[0146] The above limit window offset is the specific offset amount of the limit window within the frame period, and the limit window offset amount is within the range of the frame period. For example, if the unit of the limit window is a time slot, the value of the limit window offset amount within one frame period may be {0, ..., 159}. In this case, the sum of the limit window offset amount and the length of the limit window may exceed the frame period, and the portion of the limit window that exceeds the frame period becomes invalid, that is, the portion of the limit window that exceeds the frame period cannot be used to limit the beam.

[0147] To improve beam limiting efficiency, within one frame period, the sum of the limiting window offset and the limiting window length does not exceed the last time slot within the frame period; that is, the limiting window does not extend beyond the last time slot within the frame period, meaning the limiting window is entirely within one frame period, and the entire limiting window can be used to restrict data reception or transmission using the second limiting beam.

[0148] The first placement information in the above restriction window can also be converted to units of milliseconds, and the units of the above placement can also be converted to milliseconds depending on the length of the time slot in the SCS of the interfering base station.

[0149] In the embodiments of the present invention, the maximum number of restricting windows that can be placed may be 2, 4, 8, etc. When restricting windows are placed, the controller places at least one restricting window, and if multiple restricting windows are placed, the first restricting window is activated by default; that is, the first restricting window is the activated restricting window by default. If it is necessary to update an activated restricting window, the controller may send the identifier of the restricting window awaiting activation to the interfering base station via additional information such as the third active message described above, and send the identifier of the restricting window awaiting activation to the affected base station via additional information such as the first active message described above.

[0150] Before the affected base station returns beam measurement results, the controller can place all restriction windows for each interfering base station. After receiving the beam measurement results returned from the affected base station, the controller can select and activate one appropriate restriction window from all the restriction windows based on the beam measurement results. If no appropriate restriction window exists, the controller can place a new restriction window for the interfering base station and activate it at the same time. The controller can also place a restriction window for the interfering base station and activate it at the same time after receiving the beam measurement results returned from the affected base station.

[0151] Regarding beam placement information such as the placement information of the restriction window, the second restricting beam, and the second recommended beam, the controller can transmit the beam placement information of each interfering base station to the corresponding interfering base station. Based on the placement information of the second restricting beam, the second recommended beam, and the restriction window in the beam placement information, the interfering base station will avoid transmitting data using the second restricting beam in the activated restriction window and will transmit data using the second recommended beam as much as possible.

[0152] A damaged base station can schedule a beam in any direction to receive data within the activated restriction window of an interfering base station, and avoids receiving data using the same beam as the first restricted beam of the interfering base station outside the activated restriction window, or does not schedule data to be received using that beam.

[0153] The invention provides a technical solution for beam-based CLI measurement, reporting, and collaborative scheduling in a 5G-Adv communication system, specifically, beam measurement, reporting, and collaborative scheduling between base stations using measurement signals corresponding to beams. After the controller places the measurement signals and interference measurement windows, the affected base station receives the measurement signals in the interference measurement window, measures the CLI value of the beam corresponding to the measurement signals, and reports the CLI value to the controller, enabling the affected base station to perform CLI measurements effectively. The controller aggregates all reported CLI values ​​and determines the second limiting beam, second recommended beam, and limiting window, thereby coordinating scheduling between the interfering base station and the affected base station. The above technology improves the overall performance of the F-TDD communication system by utilizing collaborative scheduling technology between base stations to avoid or suppress CLI.

[0154] Corresponding to the CLI measurement method applied to the affected base station described above, an embodiment of the present invention provides a CLI measurement method applied to an interfering base station, wherein the interfering base station has at least one measurement signal, the time-frequency area resources occupied by some or all of the at least one measurement signal are within the interfering measurement window, the measurement signals correspond one-to-one with beams, and the beams have different directions. As shown in Figure 7, the method includes the following steps. Step S71: Obtain second resource placement information of the interfering base station, wherein the second resource placement information indicates a time-frequency area resource occupied by at least one measurement signal. Step S72: Based on the second resource placement information, transmit a measurement signal to the damaged base station using a different beam.

[0155] In the technical solution provided by the embodiment of this application, the interfering base station transmits measurement signals to the affected base station using different beams, and the affected base station further measures the different measurement signals within the interference measurement window, thereby obtaining the CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Based on the CLI values ​​of the different beams, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of interference measurement at the affected base station and saving energy at the affected base station.

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

[0157] In the embodiment of the present invention, when performing CLI measurement, if the interfering base station has second resource placement information, the interfering base station can obtain the second resource placement information stored locally by the interfering base station. If the interfering base station does not have second resource placement information, the interfering base station can obtain the second resource placement information from the controller, and CLI measurement is guaranteed.

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

[0159] In some embodiments, the second resource placement information of the interfering base station includes an instruction parameter corresponding to CSI-RS, which indicates that CSI-RS is to be used for CLI measurements.

[0160] In some embodiments, the above CLI measurement method is Receiving a set of beam measurement results of CLI measurements from each affected base station transmitted from the controller, the beam measurement results set including a second limiting beamlist and a second recommendation beamlist, the second limiting beamlist including an identifier of the measurement signal corresponding to each of the second limiting beams of the interfering base station, the second recommendation beamlist including an identifier of the measurement signal corresponding to each of the second recommendation beams of the interfering base station, the second limiting beam being a beam awaiting limitation, the second recommendation beam being a beam awaiting recommendation, and / or The system receives a third active message from the controller, the third active message includes an identifier for a restriction window awaiting activation, the restriction window awaiting activation is a window that restricts the second restriction beam, and when the next frame cycle is reached, the activated restriction window is deactivated, the restriction window awaiting activation is activated based on the third active message, within the activated restriction window, data transmission to the user device is restricted using the second restriction beam, data transmission to the user device is restricted using the second recommended beam, and outside the activated restriction window, data transmission to the user device is restricted using beams in any direction.

[0161] In some embodiments, the limiting window is one or more, and the CLI measurement method described above is After receiving first placement information for a restriction window sent from the controller, the default restriction window among all restriction windows is activated based on the received first placement information for the restriction window, further comprising the first placement information for each restriction window indicating the time slot that the restriction window occupies.

[0162] In some embodiments, the third active message may further include first placement information for a restriction window awaiting activation, which indicates the time slot to be occupied by the restriction window awaiting activation. In this case, the step of activating the restriction window awaiting activation based on the third active message may include activating the restriction window awaiting activation in the time slot indicated by the first placement information for the restriction window awaiting activation.

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

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

[0165] In some embodiments, the limit window does not exceed the last time slot within the frame period.

[0166] In some embodiments, when the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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. If the affected 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 one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

[0167] In some embodiments, there is one or more interferometry windows, the activated interferometry windows are used for CLI measurements, the second placement information for the interferometry windows indicates the time slot occupied by the interferometry windows, and the second placement information for each interferometry window includes one or more placement parameters from the reference SCS of the interferometry window, the length of the interferometry window, the period of the interferometry window, and the offset amount of the interferometry window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

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

[0169] Corresponding to the CLI measurement method applied to the above-mentioned damaged base station, the embodiment of the present invention provides a CLI measurement method applied to a controller, which includes the following steps, as shown in Figure 8. Step S81: Obtain second arrangement information of the interference measurement window of the affected base station and second resource arrangement information of the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, and the second resource arrangement information of each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and at each interfering base station, the measurement signals correspond one-to-one with beams, and the directions of different beams are different. Step S82: Transmit second resource placement information to the affected base station, transmit second resource placement information for each interfering base station, and transmit first resource placement information to the affected base station, wherein the first resource placement information includes an identifier for the first resource placement information and the second resource placement information for each interfering base station, and the identifier for the first resource placement information corresponds one-to-one with the affected base station.

[0170] In the technical solution provided by the embodiment of the present invention, the interfering base station transmits measurement signals to the affected base station using different beams, and the affected base station measures the different measurement signals within the interference measurement window, thereby obtaining the CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Based on the CLI values ​​of the different beams, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of interference measurement at the affected base station and saving energy at the affected base station.

[0171] In some embodiments, the second placement information includes one or more placement parameters among the reference SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

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

[0173] In some embodiments, when the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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. If the affected 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 one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

[0174] In some embodiments, there is one or more interference measurement windows, and the activated interference measurement windows are used for CLI measurement, in which case the CLI measurement method is as follows: This further includes sending a second active message to the affected base station, the second active message containing an identifier for an interference measurement window awaiting activation.

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

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

[0177] In some embodiments, the affected base station is one or more, and the CLI measurement method described above is Receiving the beam measurement results of CLI measurements transmitted from each affected base station, The method involves determining the second limiting beam and the second recommended beam of each interfering base station based on the beam measurement results, wherein the second limiting beam is a beam awaiting limiting, and the second recommended beam is a beam awaiting recommendation.

[0178] In some embodiments, the beam measurement results may include the identifier of the interfering base station, the identifier of each measurement signal, and the CLI value of each measurement signal, or The beam measurement results include an identifier for the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting beams are beams whose CLI value is greater than the first preset CLI threshold, and the first recommended beams are beams whose CLI value is less than the second preset CLI threshold, or The beam measurement results include the identifier of the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes the identifier of the measurement signal corresponding to each first limiting beam and the CLI value for each first limiting beam, and the first recommended beamlist includes the identifier of the measurement signal corresponding to each first recommended beam and the CLI value for each first recommended beam.

[0179] In some embodiments, if the beam measurement results include a first limiting beam list and a first recommended beam list, the step of determining the second limiting beam and second recommended beam for each interfering base station based on the above beam measurement results is as follows: The beam corresponding to each of the first measurement signals is determined as the second limiting 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 limiting beam lists. The beam corresponding to each second measurement signal is determined as the 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, but is included in any of the first recommended beam lists.

[0180] In some embodiments, if the beam measurement results do not include the first limiting beam list and the first recommended beam list, the step of determining the second limiting beam and the second recommended beam for each interfering base station based on the above beam measurement results is as follows: This includes determining the second limiting beam and second recommended beam of each interfering base station based on the CLI values ​​included in each of the beam measurement results.

[0181] In some embodiments, the step of determining the second limiting beam and second recommended beam of each interfering base station based on the CLI values ​​included in each beam measurement result is: If the target CLI value of any of the measurement signals is greater than the first preset CLI threshold, it is determined that the measurement signal is the second limiting beam of the interfering base station transmitting the measurement signal. The process includes determining that the beam corresponding to a measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal if each target CLI value of a single 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 the second preset CLI threshold. Here, if the CLI value included in the beam measurement result is the current RSRP of the measurement signal, the target CLI value is the current RSRP included in the beam measurement result, meaning the target CLI value may be a short-time CLI value, or the target CLI value is the RSRP determined based on the current RSRP and historical RSRP included in the beam measurement result, meaning the target CLI value may be a long-time CLI value. If the CLI value included in the beam measurement results is the RSRP determined based on the current RSRP and historical RSRP, then the target CLI value is the RSRP included in the beam measurement results, i.e., the target CLI value is the long-term CLI value.

[0182] In some embodiments, at each interfering base station, the ratio of the second limiting beam to all beams of the interfering base station is smaller than a predetermined ratio. At each interfering base station, the number of times the second limiting beam is limited is greater than the number of times the other beams at that same interfering base station are limited.

[0183] In some embodiments, the above CLI measurement method is Sending a first active message to the target damaged base station and a third active message to the target interfering base station, wherein the first and third active messages include identifiers of restriction windows awaiting activation, the restriction window awaiting activation at the target damaged base station is a window that restricts the same beam as the directing area of ​​the first restricting beam, the restriction window awaiting activation at the target interfering base station is a window that restricts the second restricting beam, the first restricting beam is a beam whose CLI value measured by the target damaged base station is greater than the first preset CLI threshold, the target damaged base station is a damaged base station having the first restricting beam, the target interfering base station is an interfering base station having the second restricting beam, and / or The method further includes transmitting a set of beam measurement results of crosslink interference CLI measurements performed by each affected base station to the target interfering base station, wherein the beam measurement result set includes a second limiting beamlist and a second recommended beamlist, the second limiting beamlist includes an identifier of the measurement signal corresponding to each of the second limiting beams of the target interfering base station, and the second recommended beamlist includes an identifier of the 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 for the limited window awaiting activation, the first placement information for the limited window awaiting activation indicates the time slot to be occupied by the limited window awaiting activation.

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

[0186] In some embodiments, the limit window does not exceed the last time slot within the frame period.

[0187] Corresponding to the above CLI measurement method, the embodiment of the present application further provides a CLI measurement device applicable to a damaged base station, as shown in Figure 9, A first receiving means 91 is used to receive different measurement signals transmitted from an interfering base station using different beams within an interfering measurement window, where the measurement signals correspond one-to-one with the beams and the directions of the different beams are different. The system includes a measuring means 92 used to measure the crosslink interference CLI value of the beams corresponding to each measurement signal based on each measurement signal.

[0188] In the technical solution provided by the embodiment of this application, the interfering base station transmits measurement signals to the affected base station using different beams, and the affected base station further measures the different measurement signals within the interference measurement window, thereby obtaining the CLI values ​​of the different measurement signals, i.e., the CLI values ​​of the beams corresponding to the different measurement signals. Based on the CLI values ​​of the different beams, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the measurement signals corresponding to different beams only within the interference measurement window, reducing the complexity of interference measurement at the affected base station and saving energy at the affected base station.

[0189] In some embodiments, the measuring means 92 specifically, To measure the current RSRP for each measurement signal, use the corresponding beam crosslink interference CLI value for each measurement signal, or It is used to measure the current RSRP of each measurement signal and update the CLI value of the beam corresponding to each measurement signal based on the current RSRP and historical RSRP of each measurement signal.

[0190] In some embodiments, the CLI measuring device is A generation means used to generate beam measurement results based on the CLI value of the beam corresponding to each measurement signal, The system further comprises a transmission means used to transmit beam measurement results to a controller.

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

[0192] In some embodiments, the transmitting means specifically, Send the latest beam measurement results to the controller according to a pre-set reporting cycle, or It is used to transmit beam measurement results to a controller when pre-set trigger conditions are met.

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

[0194] In some embodiments, the preset trigger conditions are that the first limiting beam and / or the first recommended beam changes among all beams used by the interfering base station, where the first limiting beam is a beam with a CLI value greater than the first preset CLI threshold, and the first recommended beam is a beam with a CLI value less than the second preset CLI threshold.

[0195] In some embodiments, the beam measurement results include an identifier for the interfering base station, an identifier for each measurement signal, and the CLI value of the beam corresponding to each measurement signal, wherein the first limiting beam is a beam whose CLI value is greater than the first preset CLI threshold, the first recommended beam is a beam whose CLI value is less than the second preset CLI threshold, or The beam measurement results include an identifier for the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting beams are beams whose CLI value is greater than the first preset CLI threshold, and the first recommended beams are beams whose CLI value is less than the second preset CLI threshold, or The beam measurement results include the identifier of the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes the identifier of the measurement signal corresponding to each first limiting beam and the CLI value for each first limiting beam, and the first recommended beamlist includes the identifier of the measurement signal corresponding to each first recommended beam and the CLI value for each first recommended beam.

[0196] In some embodiments, the CLI measuring device is The system further comprises a second receiving means, which receives a first active message transmitted from the controller, the first active message containing an identifier for a restriction window awaiting activation, the restriction window awaiting activation is a window that restricts the same beam as the directional area of ​​the first restriction beam, the first restriction beam is a beam whose CLI value is greater than a first preset CLI threshold, and when the next frame period is reached, it deactivates the activated restriction window, activates the restriction window awaiting activation based on the first active message, and is used to restrict the reception of data transmitted from the user device using a beam in any direction within the activated restriction window, and to restrict the reception of data transmitted from the user device using the same beam as the directional area of ​​the first restriction beam outside the activated restriction window.

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

[0198] In some embodiments, the limiting window is one or more, and the CLI measuring device is The system further comprises a first activation means, which, after receiving first placement information of a restriction window transmitted from a controller, activates the default restriction window among all restriction windows based on the received first placement information of the restriction window, wherein the first placement information of each restriction window is used to indicate the time slot occupied by that restriction window.

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

[0200] In some embodiments, the limit window does not exceed the last time slot within the frame period.

[0201] In some embodiments, when the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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. If the affected 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 one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

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

[0203] In some embodiments, there is one or more interference measurement windows, and the second placement information for each interference measurement window includes one or more placement parameters, such as the reference SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

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

[0205] In some embodiments, the CLI measuring device is The system further comprises a third receiving means that receives first resource allocation information transmitted from a controller, wherein the first resource allocation information includes an identifier for the first resource allocation information and second resource allocation information for each interfering base station, the identifier for the first resource allocation information corresponds one-to-one with an affected base station, and the second resource allocation information for each interfering base station is used to indicate the time-frequency area resource occupied by each of the measurement signals of the interfering base station.

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

[0207] In some embodiments, the second resource placement information for each interfering base station includes an instruction parameter corresponding to CSI-RS, which indicates that CSI-RS is to be used for CLI measurements.

[0208] Corresponding to the above-described CLI measurement method, the embodiment of the present application provides a CLI measurement device applicable to an interfering base station, wherein the interfering base station has at least one measurement signal, and the time-frequency area resources occupied by some or all of the at least one measurement signal are within the interfering measurement window, and the measurement signals correspond one-to-one with beams, and the beams have different directions. As shown in Figure 10, the device is, Acquisition means 101 to acquire second resource placement information of an interfering base station, wherein the second resource placement information is used to indicate a time-frequency area resource occupied by at least one measurement signal, The system includes a transmission means 102 used to transmit a measurement signal to a damaged base station using a different beam, based on second resource placement information.

[0209] In the technical solution provided by the embodiment of this application, the interfering base station transmits beam measurement signals to the affected base station using different beams, and the affected base station measures the different beam measurement signals within the interferometry window, thereby obtaining the CLI values ​​of the different measurement signals generated by the interfering base station to the affected base station, i.e., the CLI values ​​of the beams corresponding to the different beam measurement signals. Based on the CLI values ​​of the different beams generated by the interfering base station to the affected base station, appropriate CLI suppression techniques can be obtained, and by coordinating the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the beam measurement signals corresponding to the different beams only within the interferometry window, reducing the complexity of interference measurement for the affected base station and saving energy for the affected base station.

[0210] In some embodiments, the acquisition means 101 is specifically used to receive second resource placement information of interfering base stations transmitted from the controller.

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

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

[0213] In some embodiments, the CLI measuring device is A first receiving means, and / or a second receiving means, to receive a set of beam measurement results of crosslink interference CLI measurements from each affected base station transmitted from the controller, the set of beam measurement results comprising a second limit beam list and a second recommendation beam list, the second limit beam list comprising an identifier of the measurement signal corresponding to each of the second limit beams of the interfering base station, the second recommendation beam list comprising an identifier of the measurement signal corresponding to each of the second recommendation beams of the interfering base station, the second limit beam being a beam awaiting limitation, and the second recommendation beam being a beam awaiting recommendation. The system further comprises a second receiving means, which receives a third active message transmitted from the controller, the third active message containing an identifier for a restriction window awaiting activation, the restriction window awaiting activation being a window that restricts the second restriction beam, and when the next frame cycle is reached, it deactivates the activated restriction window, activates the restriction window awaiting activation based on the third active message, restricts the transmission of data to the user device using the second restriction beam within the activated restriction window, transmits data to the user device using the second recommended beam, and is used to transmit data to the user device using a beam in any direction outside the activated restriction window.

[0214] In some embodiments, the limiting window is one or more, and the CLI measuring device is The system further includes an activation means that, after receiving first placement information of a restriction window transmitted from a controller, activates the default restriction window among all restriction windows based on the received first placement information of the restriction window, wherein the first placement information of each restriction window is used to indicate the time slot occupied by that restriction window.

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

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

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

[0218] In some embodiments, the limit window does not exceed the last time slot within the frame period.

[0219] In some embodiments, when the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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. If the affected 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 one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

[0220] In some embodiments, there is one or more interference measurement windows, the activated interference measurement windows are used for CLI measurements, and the second placement information for each interference measurement window includes one or more placement parameters among the reference SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

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

[0222] Corresponding to the above CLI measurement method, the embodiment of the present application provides a CLI measurement device applicable to a controller, as shown in Figure 11, the device is The acquisition means 111 acquires second arrangement information of the interference measurement window of the affected base station and second resource arrangement information of the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, and the second resource arrangement information of each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and is used so that at each interfering base station, the measurement signals correspond one-to-one with beams, and different beam directions are different. The first transmission means 112 transmits second resource placement information to a damaged base station, transmits second resource placement information for each interfering base station, and transmits first resource placement information to a damaged base station, wherein the first resource placement information includes an identifier for the first resource placement information and the second resource placement information for each interfering base station, and the identifier for the first resource placement information corresponds one-to-one with the damaged base station.

[0223] In the technical solution provided by the embodiment of this application, the interfering base station transmits beam measurement signals to the affected base station using different beams, and the affected base station measures the different beam measurement signals within the interferometry measurement window, thereby obtaining the CLI values ​​of the different measurement signals generated by the interfering base station to the affected base station, i.e., the CLI values ​​of the beams corresponding to the different beam measurement signals. Based on the CLI values ​​of the different beams generated by the interfering base station to the affected base station, appropriate CLI suppression techniques can be obtained, and by cooperating in the scheduling of time-frequency resources between base stations, CLI in different beam directions in the F-TDD communication system can be suppressed, improving the performance of the F-TDD communication system. In addition, the affected base station measures the beam measurement signals corresponding to the different beams only within the interferometry measurement window, reducing the complexity of interference measurement for the affected base station and saving energy for the affected base station.

[0224] In some embodiments, the second placement information includes one or more placement parameters among the reference SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

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

[0226] In some embodiments, when the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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. If the affected 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 one or more consecutive designated time slots, where the designated time slots are the uplink time slots of the affected base station.

[0227] In some embodiments, there is one or more interference measurement windows, and the activated interference measurement windows are used for CLI measurement, and the CLI measurement device is The system further comprises a second transmission means, which is used to transmit a second active message to the affected base station, the second active message including an identifier for an interference measurement window awaiting activation.

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

[0229] In some embodiments, the second resource placement information for each interfering base station includes an instruction parameter corresponding to CSI-RS, which indicates that CSI-RS is to be used for CLI measurements.

[0230] In some embodiments, the affected base station is one or more, and the CLI measurement device is A receiving means used to receive beam measurement results of crosslink interferometry CLI measurements transmitted from each affected base station, The system further comprises a determination means used to determine the second limiting beam and the second recommended beam of each interfering base station based on the beam measurement results, wherein the second limiting beam is a beam awaiting limiting and the second recommended beam is a beam awaiting recommendation.

[0231] In some embodiments, the beam measurement results include an identifier for the interfering base station, an identifier for each measurement signal, and the CLI value of the beam corresponding to each measurement signal, or The beam measurement results include an identifier for the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting beams are beams whose CLI value is greater than the first preset CLI threshold, and the first recommended beams are beams whose CLI value is less than the second preset CLI threshold, or The beam measurement results include the identifier of the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes the identifier of the measurement signal corresponding to each first limiting beam and the CLI value for each first limiting beam, and the first recommended beamlist includes the identifier of the measurement signal corresponding to each first recommended beam and the CLI value for each first recommended beam.

[0232] In some embodiments, the determining means is specifically, The beam corresponding to each of the first measurement signals is determined as the second limiting 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 limiting beam lists. This method is used to determine the beam corresponding to each second measurement signal as the 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, but is included in any of the first recommended beam lists.

[0233] In some embodiments, the determination means is specifically used to determine the second limiting beam and second recommended beam of each interfering base station based on the CLI values ​​included in each beam measurement result, if the beam measurement results do not include the first limiting beam list and the first recommended beam list.

[0234] In some embodiments, the determining means is specifically, If the target CLI value of any of the measurement signals is greater than the first preset CLI threshold, it is determined that the beam corresponding to that measurement signal is the second limiting beam of the interfering base station transmitting that measurement signal. This is used to determine that the beam corresponding to a measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal, when all target CLI values ​​of a single measurement signal are below the first preset CLI threshold, and any target CLI value of that measurement signal is less than the second preset CLI threshold. Here, if the CLI value included in the beam measurement result is the current reference signal received power RSRP of the measurement signal, then 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 historical RSRP included in the beam measurement result. If the target CLI value is the RSRP determined based on the current RSRP and historical RSRP included in the beam measurement results, then the target CLI value is the RSRP included in the beam measurement results.

[0235] In some embodiments, at each interfering base station, the ratio of the second limiting beam to all beams of the interfering base station is smaller than a predetermined ratio. At each interfering base station, the number of times the second limiting beam is limited is greater than the number of times the other beams at that same interfering base station are limited.

[0236] In some embodiments, the CLI measuring device is A third transmission means used to transmit a first active message to a target damaged base station and a third active message to a target interfering base station, wherein the first and third active messages include an identifier for a restriction window awaiting activation, and in the target damaged base station, the restriction window awaiting activation is a window that restricts the same beam as the directing area of ​​the first restriction beam, and in the target interfering base station, the restriction window awaiting activation is a window that restricts the second restriction beam, and the first restriction beam is a beam whose CLI value measured by the target damaged base station is greater than a first preset CLI threshold, and the target damaged base station is a damaged base station having the first restriction beam, and the target interfering base station is an interfering base station having the second restriction beam, and / or The system further comprises a fourth transmission means used to transmit a set of beam measurement results of crosslink interference CLI measurements performed by each affected base station to a target interfering base station, wherein the set of beam measurement results includes a second limiting beamlist and a second recommended beamlist, the second limiting beamlist includes an identifier of the measurement signal corresponding to each of the second limiting beams of the target interfering base station, and the second recommended beamlist includes an identifier of the measurement signal 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 for the limited window awaiting activation, the first placement information for the limited window awaiting activation indicates the time slot to be occupied by the limited window awaiting activation.

[0238] In some embodiments, the first arrangement information of each restriction window includes one or more arrangement parameters selected from 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, the reference SCS of the restriction window is the SCS of the interfering base station, the length of the restriction window is less than or equal to the frame period, the period of the restriction window is an integer multiple of the frame period, the offset amount of the restriction window within one frame period does not exceed the last time slot in the frame period.

[0239] In some embodiments, the restriction window does not exceed the last time slot within the frame period.

[0240] Corresponding to the above CLI measurement method, as shown in FIG. 12, an embodiment of the present application provides a base station comprising 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 configured to store a computer program, when the processor 121 executes the program stored in the memory, the processor 121 is configured to implement the steps of the CLI measurement method according to any one of the above items, which is applied to a victim base station or an interfering base station.

[0241] When the base station is a victim base station, the processor 121, upon executing the program stored in the memory, implements: receiving different measurement signals transmitted from the interfering base station using different beams within an interference measurement window, wherein the measurement signals are in one-to-one correspondence with the beams and different beams have different directions; and measuring a cross-link interference (CLI) value of the beam corresponding to each measurement signal based on each measurement signal.

[0242] In some embodiments, the step of measuring the crosslink interference CLI value of the beam corresponding to each of the measurement signals based on each of the measurement signals is: Measure the current reference signal received power RSRP for each measurement signal as the crosslink interference CLI value of the beam corresponding to each measurement signal, or This includes measuring the current RSRP of each measurement signal and updating the crosslink interference CLI value of the beam corresponding to each measurement signal based on the current RSRP and historical RSRP of each measurement signal.

[0243] In some embodiments, the processor 121 executes a program stored in memory, generates beam measurement results based on the respective CLI values ​​of each beam, and transmits the beam measurement results to a 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 limiting beam or a first recommended beam exists among all the beams used by the interfering base station, generating beam measurement results for the first limiting beam or the first recommended beam, wherein the first limiting 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 cycle, or transmitting the beam measurement results to the controller when a preset trigger condition is met.

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

[0247] In some embodiments, the preset trigger condition is that the first limiting beam and / or the first recommended beam changes among all beams used by the interfering base station, wherein the first limiting beam is a beam with a CLI value greater than a first preset CLI threshold, and the first recommended beam is a beam with a CLI value less than a second preset CLI threshold.

[0248] In some embodiments, the beam measurement result includes the identifier of the interfering base station, the identifier of each measurement signal, and the CLI value of the beam corresponding to each measurement signal, wherein the first limiting 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 results include an identifier for the interfering base station, a first limiting beam list, and a first recommended beam list, wherein the first limiting beam list includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beam list includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting 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 results include an identifier for the interfering base station, a first limiting beam list, and a first recommended beam list, wherein the first limiting beam list includes an identifier for the measurement signal corresponding to each first limiting beam and the respective CLI value for each first limiting beam, and the first recommended beam list includes an identifier for the measurement signal corresponding to each first recommended beam and the respective CLI value for each first recommended beam.

[0249] In some embodiments, when the processor 121 executes a program stored in memory, it receives a first active message sent from the controller, wherein the first active message includes an identifier for a restriction window awaiting activation, the restriction window awaiting activation is a window that restricts the same beam as the directional area of ​​the first restriction beam, the first restriction beam is a beam whose CLI value is greater than a first preset CLI threshold, and when the next frame period is reached, it deactivates the activated restriction window and activates the restriction window awaiting activation based on the first active message, and further restricts the reception of data transmitted from the user device using a beam in any direction within the activated restriction window, and restricts the reception of data transmitted from the user device using the same beam as the directional area of ​​the first restriction beam outside the activated restriction window.

[0250] In some embodiments, the first active message further includes first placement information for the activation-awaiting restriction window, the first placement information for the activation-awaiting restriction window indicates the time slot occupied by the activation-awaiting restriction window, The step of enabling the activation-awaited restriction window based on the first activation message includes enabling the activation-awaited restriction window in the time slot indicated by the first placement information of the activation-awaited restriction window.

[0251] In some embodiments, the restriction window is one or more, and when the processor 121 executes a program stored in memory, it receives first placement information of the restriction window sent from the controller, and then further enables the default restriction window from among all the restriction windows based on the received first placement information of the restriction window, the first placement information of each restriction window indicates the time slot that the restriction window occupies.

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

[0253] In some embodiments, the limit window does not exceed the last time slot within the frame period.

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

[0255] In some embodiments, there are one or more interference measurement windows, the enabled interference measurement window is used for CLI measurement, and when the processor 121 executes a program stored in a memory, after receiving second configuration information of the interference measurement window transmitted from a controller, the processor further implements: enabling a default interference measurement window among all interference measurement windows based on the received second configuration information of the interference measurement window, wherein the second configuration information of each interference measurement window indicates a time slot occupied by the interference measurement window; and after receiving a second activation message transmitted from the controller that includes an identifier of an interference measurement window to be activated, when a next frame period is reached, disabling the enabled interference measurement window, and enabling the interference measurement window to be activated based on the second activation message.

[0256] In some embodiments, there are one or more interference measurement windows, and the second configuration information of each interference measurement window includes one or more configuration parameters selected from the group consisting 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 of the interference measurement window is a fixed SCS or the SCS of the victim base station, the length of the interference measurement window is less than or equal to 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 in the frame period.

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

[0258] In some embodiments, the processor 121, upon executing a program stored in memory, further realizes receiving first resource allocation information transmitted from the controller, wherein the first resource allocation information includes an identifier for the first resource allocation information and second resource allocation information for each interfering base station, the identifier for the first resource allocation information corresponds one-to-one with the affected base station, and the second resource allocation information for each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of the interfering base station.

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

[0260] In some embodiments, the second resource placement information for each interfering base station includes an instruction parameter corresponding to the CSI-RS, which indicates that the CSI-RS is to be used for CLI measurement.

[0261] If the above base station is an interfering base station, then at least one measurement signal is located at the interfering base station, and the time-frequency area resources occupied by some or all of the at least one measurement signals are within the interfering measurement window, the measurement signals correspond one-to-one with beams, and the directions of the different beams are different. When the processor 121 executes a program stored in memory, it obtains second resource placement information for the interfering base station, the second resource placement information indicates the time-frequency area resources occupied by the at least one measurement signal, and based on the second resource placement information, it transmits the measurement signal to the affected base station using a different beam.

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

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

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

[0265] In some embodiments, when the processor 121 executes a program stored in memory, Receiving a set of beam measurement results of crosslink interference CLI measurements from each affected base station transmitted from the controller, wherein the beam measurement result set includes a second limiting beamlist and a second recommended beamlist, the second limiting beamlist includes an identifier of the measurement signal corresponding to each of the second limiting beams of the interfering base station, the second recommended beamlist includes an identifier of the measurement signal corresponding to each of the second recommended beams of the interfering base station, the second limiting beams are beams awaiting limiting, the second recommended beams are beams awaiting recommendation, and / or The system further implements the following: upon receiving a third active message transmitted from the controller, and upon reaching the next frame cycle, it deactivates the activated restriction window, activates the restriction window awaiting activation based on the third active message, restricts the transmission of data to the user device using the second restriction beam within the activated restriction 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 activated restriction window, wherein the third active message includes an identifier for the restriction window awaiting activation, and the restriction window awaiting activation is a window that restricts the second restriction beam.

[0266] In some embodiments, there is one or more restriction windows, and when the processor 121 executes a program stored in memory, it receives first placement information of the restriction windows sent from the controller, and then further enables the default restriction window among all the restriction windows based on the received first placement information of the restriction windows, the first placement information of each restriction window indicates the time slot that the restriction window occupies.

[0267] In some embodiments, the third active message further includes first placement information for the activation-awaited restriction window, the first placement information for the activation-awaited restriction window indicates the time slot occupied by the activation-awaited restriction window, The step of enabling the activation-awaited restriction window based on the third activation message includes enabling the activation-awaited restriction window in the time slot indicated by the first placement information of the activation-awaited restriction window.

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

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

[0270] In some embodiments, the limit window does not exceed the last time slot within the frame period.

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

[0272] In some embodiments, the interference measurement windows are one or more, the activated interference measurement windows are used for CLI measurements, and the second placement information for each interference measurement window includes one or more placement parameters among the reference subcarrier interval SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period.

[0273] In some embodiments, the interference measurement window does not exceed the last time slot within the frame period.

[0274] Corresponding to the above CLI measurement method, as shown in Figure 13, an embodiment of the present invention provides a controller comprising 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. Memory 133 is used to store computer programs. When the processor 131 executes a program stored in memory, it is used to implement the steps of the CLI measurement method described in any one of the above paragraphs that apply to the controller.

[0275] In an embodiment of the present invention, when the processor 131 executes a program stored in memory, it obtains second arrangement information of the interference measurement window of the affected base station and second resource arrangement information of the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, the second resource arrangement information of each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of the interfering base station, and at each interfering base station, the measurement signals correspond one-to-one with beams, and different beam directions are different, and transmits the second arrangement information to the affected base station, transmits the second resource arrangement information of each interfering base station, and transmits first resource arrangement information to the affected base station, wherein the first resource arrangement information includes an identifier for the first resource arrangement information and the second resource arrangement information of each interfering base station, and the identifier for the first resource arrangement information corresponds one-to-one with the affected base station.

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

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

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

[0279] In some embodiments, the interference measurement windows are one or more, the activated interference measurement windows are used for CLI measurements, and the processor 131 further realizes that when it executes a program stored in memory, it sends a second active message to the affected base station, the second active message includes an identifier for the interference measurement window awaiting activation.

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

[0281] In some embodiments, the second resource placement information for each interfering base station includes an instruction parameter corresponding to the CSI-RS, which indicates that the CSI-RS is to be used for cross-link interference CLI measurement.

[0282] In some embodiments, the affected base station is one or more, and the processor 131, upon executing a program stored in memory, further implements receiving beam measurement results of crosslink interference CLI measurements transmitted from each affected base station, and determining a second limiting beam and a second recommended beam for each interfering base station based on each beam measurement result, wherein the second limiting beam is a beam awaiting limiting, and the second recommended beam is a beam awaiting recommendation.

[0283] In some embodiments, the beam measurement results include an identifier for the interfering base station, an identifier for each measurement signal, and the CLI value of the beam corresponding to each measurement signal, or The beam measurement results include an identifier for an interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting 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 results include an identifier for the interfering base station, a first limiting beam list, and a first recommended beam list, wherein the first limiting beam list includes an identifier for the measurement signal corresponding to each first limiting beam and the respective CLI value for each first limiting beam, and the first recommended beam list includes an identifier for the measurement signal corresponding to each first recommended beam and the respective CLI value for each first recommended beam.

[0284] In some embodiments, if the beam measurement results include a first limiting beam list and a first recommended beam list, the step of determining the second limiting beam and second recommended beam of each interfering base station based on the beam measurement results includes determining the beam corresponding to each of the first measurement signals as the second limiting 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 limiting beam lists, and determining the beam corresponding to each of the second measurement signals as the 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 limiting beam lists but is included in any of the first recommended beam lists.

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

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

[0287] In some embodiments, at each interfering base station, the ratio of the second limiting beam to all beams of the interfering base station is smaller than a predetermined ratio. At each interfering base station, the number of times the second limiting beam is limited is greater than the number of times the other beams at that same interfering base station are limited.

[0288] In some embodiments, when the processor 131 executes a program stored in memory, Sending a first active message to the target damaged base station and a third active message to the target interfering base station, wherein the first and third active messages include an identifier for a restriction window awaiting activation, the restriction window awaiting activation at the target damaged base station is a window that restricts the same beam as the directing area of ​​the first restricting beam, the restriction window awaiting activation at the target interfering base station is a window that restricts the second restricting beam, the first restricting beam is a beam whose CLI value measured by the target damaged base station is greater than a first preset CLI threshold, the target damaged base station is a damaged base station having the first restricting beam, the target interfering base station is an interfering base station having the second restricting beam, and / or The method further involves transmitting a set of beam measurement results of crosslink interference CLI measurements performed by each affected base station to the target interfering base station, wherein the beam measurement result set includes a second limiting beamlist and a second recommended beamlist, the second limiting beamlist includes an identifier of the measurement signal corresponding to each of the second limiting beams of the target interfering base station, and the second recommended beamlist includes an identifier of the measurement signal 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 placement information for the activation-awaited restriction window, the first placement information for the activation-awaited restriction window indicates the time slot to be occupied by the activation-awaited restriction window.

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

[0291] In some embodiments, the limit window does not exceed the last time slot within the frame period.

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

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

[0294] The memory may include random access memory (RAM), non-volatile memory (NVM), and, for example, at least one magnetic disk memory. Preferably, the memory may be at least one storage device located away from the processor.

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

[0296] Embodiments of the present application provide a computer-readable storage medium in which a computer program is stored, and when the computer program is executed by a processor, it realizes the steps of any of the methods described above.

[0297] In another embodiment provided by the present application, a computer program product including instructions is further provided, which, when executed on a computer, causes the computer to perform the steps of the CLI measurement method described in any of the above embodiments.

[0298] In the above embodiments, implementation can be carried out in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be carried out 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 this application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (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., that integrates one or more available media. The above-mentioned usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives (SSDs)).

[0299] In this text, relational terms such as those in the first and second paragraphs are used merely to distinguish one entity or action from another, and do not necessarily request or suggest that such an actual relationship or order exists between these entities or actions. Furthermore, the terms “encompassing,” “including,” or other variations thereof are intended to cover non-exclusive inclusion, meaning that a process, method, article, or device containing a set of elements may further include not only those elements but also other elements not explicitly enumerated, or elements inherent to such a process, method, article, or device. Unless otherwise specified, the elements limited by “including one…” do not preclude a process, method, article, or device containing such elements from having other identical elements.

[0300] Although the embodiments described herein are presented as being related to one another, any identical or similar parts between embodiments should be referenced to one another, and the focus of the explanation will be on the differences between each embodiment and others. In particular, the embodiments of the apparatus, base station, controller, computer-readable storage medium, and program product are largely similar to the embodiments of the method, and therefore their explanation is simple; relevant parts should be referenced to the embodiments of the segment identifier identification method.

[0301] The above description is merely a preferred embodiment of the present application and does not limit it. Any amendments, equivalent substitutions, modifications, etc., made within the spirit and principles of the present application shall all be within the scope of protection of the present application.

Claims

1. A crosslink interference measurement method applicable to a damaged base station, This involves receiving different measurement signals transmitted from an interfering base station using different beams within an interferometric measurement window, where the measurement signals correspond one-to-one with the beams, and the directions of the different beams are different. Based on each measurement signal, the crosslink interference CLI value of the beam corresponding to each measurement signal is measured, To generate beam measurement results based on the respective CLI values ​​of each beam, This includes transmitting the beam measurement results to a controller, Transmitting the beam measurement results to the controller means This includes transmitting the latest beam measurement results to the controller according to a preset reporting cycle, or transmitting the beam measurement results to the controller when a preset trigger condition is met. The preset reporting period is greater than or equal to the period of the interference measurement window, and the preset reporting period is less than or equal to the maximum possible period of the interference measurement window. The aforementioned preset trigger condition is that, among all beams used by the interfering base station, the first limiting beam changes and / or the first recommended beam changes, wherein the first limiting beam is a beam whose CLI value is greater than the first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than the second preset CLI threshold. A crosslink interference measurement method characterized by the following.

2. Measuring the crosslink interference CLI value of the beam corresponding to each of the aforementioned measurement signals based on each measurement signal is: Measure the current reference signal received power RSRP for each measurement signal as the beam crosslink interference CLI value corresponding to each measurement signal, or This includes measuring the current RSRP of each measurement signal, and updating the crosslink interference CLI value of the beam corresponding to each measurement signal based on the current RSRP and historical RSRP of each measurement signal. The crosslink interference measurement method according to claim 1, characterized in that...

3. Generating beam measurement results based on the respective CLI values ​​of each of the aforementioned beams is, If a first limiting beam or a first recommended beam exists among all the beams used by the interfering base station, the method includes generating beam measurement results for the first limiting beam or the first recommended beam. The crosslink interference measurement method according to claim 2, characterized in that...

4. The beam measurement results include the identifier of the interfering base station, the identifier of each measurement signal, and the CLI value of the beam corresponding to each measurement signal, or The beam measurement results include the identifier of the interfering base station, a first restricted beamlist, and a first recommended beamlist, wherein the first restricted beamlist includes the identifier of the measurement signal corresponding to each of the first restricted beams, and the first recommended beamlist includes the identifier of the measurement signal corresponding to each of the first recommended beams, or The beam measurement results include the identifier of the interfering base station, a first restricted beam list, and a first recommended beam list, wherein the first restricted beam list includes the identifier of the measurement signal corresponding to each of the first restricted beams and the CLI value of each of the first restricted beams, and the first recommended beam list includes the identifier of the measurement signal corresponding to each of the first recommended beams and the CLI value of each of the first recommended beams. The crosslink interference measurement method according to claim 3, characterized by the above.

5. Receiving a first active message transmitted from the controller, wherein the first active message includes an identifier for a restriction window awaiting activation, the restriction window awaiting activation is a window that restricts the same beam as the directional area of ​​the first restriction beam, and the first restriction beam is a beam whose CLI value is greater than a first preset CLI threshold. When the next frame cycle is reached, the activated restriction window is deactivated, and the restriction window awaiting activation is activated based on the first active message. Within the activated restriction window, receiving data transmitted from the user device using a beam in any direction, Further including restricting the reception of data transmitted from a user device using the same beam as the directing area of ​​the first restricting beam, outside the activated restriction window, The first active message further includes first placement information for the activation-awaiting restriction window, the first placement information for the activation-awaiting restriction window indicates the time slot occupied by the activation-awaiting restriction window, Activating the activation pending restriction window based on the first active message means that This includes enabling the activation-awaiting restriction window in the time slot indicated by the first placement information of the activation-awaiting restriction window, The aforementioned restriction window may be one or more. After receiving first placement information of restriction windows transmitted from the controller, the default restriction window among all restriction windows is activated based on the received first placement information of restriction windows, further comprising the first placement information of each restriction window indicating the time slot occupied by that restriction window, The crosslink interference measurement method according to claim 3, characterized by the above.

6. The aforementioned interference measurement windows may be one or more, and the activated interference measurement windows are used for CLI measurements. After receiving the second placement information of the interference measurement window transmitted from the controller, the system activates the default interference measurement window among all interference measurement windows based on the received second placement information of the interference measurement window, wherein the second placement information of each interference measurement window indicates the time slot occupied by that interference measurement window. The system further includes, after receiving a second active message from the controller containing an identifier for an interference measurement window awaiting activation, and upon reaching the next frame cycle, deactivating the activated interference measurement window and activating the interference measurement window awaiting activation based on the second active message, The interference measurement window is one or more, and the second placement information for each interference measurement window includes one or more placement parameters from the reference subcarrier interval SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period. The crosslink interference measurement method according to claim 1, characterized in that...

7. Receiving first resource allocation information transmitted from a controller, wherein the first resource allocation information includes an identifier for the first resource allocation information and second resource allocation information for each interfering base station, the identifier for the first resource allocation information corresponds one-to-one with the affected base station, and the second resource allocation information for each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of the interfering base station, further comprising: All measurement signals transmitted from each interfering base station include an SSB, which is a synchronization information block corresponding to the wide beam, and / or a CSI-RS, which is a channel state information reference signal corresponding to the narrow beam, and within the range of the wide beam, there are multiple of the narrow beams. The second resource placement information for each interfering base station includes an instruction parameter corresponding to the CSI-RS, which indicates that the CSI-RS is to be used for CLI measurement. The crosslink interference measurement method according to claim 1, characterized in that

8. A crosslink interference measurement method applicable to an interfering base station, The aforementioned interfering base station has at least one measurement signal, and the time-frequency area resources occupied by some or all of the at least one measurement signals are within the interfering measurement window, the measurement signals correspond one-to-one with beams, and the beams have different directions. The method involves obtaining second resource allocation information of the interfering base station from the controller, wherein the second resource allocation information indicates the time-frequency area resource occupied by the at least one measurement signal. This includes transmitting a measurement signal to the damaged base station using a different beam based on the second resource placement information, Obtaining the second resource placement information of the interfering base station from the controller is, This includes receiving the second resource placement information of the interfering base station transmitted from the controller, Receiving a set of beam measurement results of crosslink interference CLI measurements from each affected base station transmitted from the controller, wherein the beam measurement result set includes a second restricted beamlist and a second recommended beamlist, the second restricted beamlist includes an identifier of the measurement signal corresponding to each of the second restricted beams of the interfering base station, the second recommended beamlist includes an identifier of the measurement signal corresponding to each of the second recommended beams of the interfering base station, the second restricted beams are beams awaiting restriction, the second recommended beams are beams awaiting recommendation, and / or The system further includes receiving a third active message transmitted from the controller, the third active message including an identifier for a restriction window awaiting activation, the restriction window awaiting activation being a window that restricts the second restriction beam, deactivating the activated restriction window upon reaching the next frame cycle, activating the restriction window awaiting activation based on the third active message, restricting the transmission of data to the user device using the second restriction beam within the activated restriction 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 activated restriction window. The ratio of the second limiting beam to all beams of the aforementioned interfering base station is smaller than a preset ratio. A method for measuring crosslink interference, characterized by the following features.

9. All measurement signals transmitted from the aforementioned interfering base station include an SSB, which is a synchronization information block corresponding to the wide beam, and / or a CSI-RS, which is a channel state information reference signal corresponding to the narrow beam, and within the range of the wide beam, there are multiple of the narrow beams. The second resource placement information of the interfering base station includes an instruction parameter corresponding to the CSI-RS, the instruction parameter indicating that the CSI-RS is used for cross-link interferometry CLI measurement. The crosslink interference measurement method according to claim 8, characterized in that

10. The aforementioned restriction window may be one or more. After receiving first placement information of restriction windows transmitted from the controller, the default restriction window among all restriction windows is activated based on the received first placement information of restriction windows, further comprising the first placement information of each restriction window indicating the time slot occupied by that restriction window, The crosslink interference measurement method according to claim 8, characterized in that...

11. The third active message further includes first placement information for the activation-awaiting restriction window, the first placement information for the activation-awaiting restriction window indicates the time slot occupied by the activation-awaiting restriction window, Activating the activation pending restriction window based on the third active message means that This includes enabling the activation-awaiting restriction window in the time slot indicated by the first placement information of the activation-awaiting restriction window, The crosslink interference measurement method according to claim 8, characterized in that...

12. The interference measurement windows are one or more, and the activated interference measurement windows are used for CLI measurements. The second placement information for each interference measurement window includes one or more placement parameters, including the reference subcarrier interval (SCS) of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period. The crosslink interference measurement method according to claim 8, characterized in that...

13. A crosslink interference measurement method applied to a controller, The method involves obtaining second arrangement information for the interference measurement window of an affected base station and second resource arrangement information for the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, the second resource arrangement information for each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and in each interfering base station, the measurement signals correspond one-to-one with beams, and the directions of different beams are different. The process involves transmitting the second resource allocation information to the affected base station, transmitting the second resource allocation information of each interfering base station to the interfering base station, and transmitting the first resource allocation information to the affected base station, wherein the first resource allocation information includes an identifier for the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier for the first resource allocation information corresponds one-to-one with the affected base station. The aforementioned interference measurement windows may be one or more, and the activated interference measurement windows are used for CLI measurements. The method further includes transmitting a second active message to the affected base station, wherein the second active message includes an identifier for an interference measurement window awaiting activation. The second arrangement information includes one or more arrangement parameters among the reference subcarrier interval SCS of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period. The reference SCS for the interference measurement window is either a fixed SCS or the SCS of the affected base station. The length of the interferometry window is less than or equal to 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 that frame period. A crosslink interference measurement method characterized by the following.

14. If the affected 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 affected base station and the interfering base station are half-duplex base stations, the interference measurement window occupies one or more consecutive designated time slots, where the designated time slots are flexible time slots, or where the designated time slots are the uplink time slot of the affected base station and the downlink time slot of the interfering base station. If the affected 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, and the designated time slots are the downlink time slots of the interfering base station. If the affected base station is a half-duplex base station and the interfering base station is a full-duplex base station, the interference measurement window occupies one or more consecutive designated time slots, and the designated time slots are the uplink time slots of the affected base station. A crosslink interference measurement method according to any one of claims 1 to 3, 8, or 13, characterized by the above.

15. All measurement signals transmitted from each interfering base station include an SSB, which is a synchronization information block corresponding to the wide beam, and / or a CSI-RS, which is a channel state information reference signal corresponding to the narrow beam, and within the range of the wide beam, there are multiple of the narrow beams. The second resource placement information for each interfering base station includes an instruction parameter corresponding to the CSI-RS, which indicates that the CSI-RS is to be used for cross-link interferometry CLI measurement. The crosslink interference measurement method according to claim 13, characterized in that

16. The affected base stations may be one or more. To receive beam measurement results of crosslink interferometry CLI measurements transmitted from each affected base station, Determining the second limiting beam and the second recommended beam of each interfering base station based on the beam measurement results, further comprising the conditions that the second limiting beam is a beam awaiting limiting and the second recommended beam is a beam awaiting recommendation. The crosslink interference measurement method according to claim 13, characterized in that

17. The beam measurement results include, or, the identifier of each measurement signal and the CLI value of the beam corresponding to each measurement signal. The beam measurement results include an identifier for the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams, wherein the first limiting 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 results include an identifier for the interfering base station, a first limiting beamlist, and a first recommended beamlist, wherein the first limiting beamlist includes an identifier for the measurement signal corresponding to each of the first limiting beams and the respective CLI value for each of the first limiting beams, and the first recommended beamlist includes an identifier for the measurement signal corresponding to each of the first recommended beams and the respective CLI value for each of the first recommended beams. The crosslink interference measurement method according to claim 16, characterized by the above.

18. If the beam measurement results include the first restricted beamlist and the first recommended beamlist, Based on the aforementioned beam measurement results, determining the second limiting beam and second recommended beam for each interfering base station is: The beam corresponding to each of the first measurement signals is determined as the second limiting 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 limiting beam lists. The process involves determining the beam corresponding to each second measurement signal as the 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, but is included in any of the first recommended beam lists. The crosslink interference measurement method according to claim 17, characterized by the above.

19. If the beam measurement results do not include the first restricted beamlist and the first recommended beamlist, Based on the aforementioned beam measurement results, determining the second limiting beam and second recommended beam for each interfering base station is: This includes determining the second limiting beam and the second recommended beam of each interfering base station based on the CLI values ​​included in each of the beam measurement results, The crosslink interference measurement method according to claim 17, characterized by the above.

20. Determining the second limiting beam and second recommended beam of each interfering base station based on the CLI values ​​included in each of the aforementioned beam measurement results is: If the target CLI value of any of the measurement signals is greater than the first preset CLI threshold, it is determined that the beam corresponding to the measurement signal is the second limiting beam of the interfering base station transmitting the measurement signal. The method includes determining that the beam corresponding to a measurement signal is the second recommended beam of the interfering base station transmitting the measurement signal, if each target CLI value of a single 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 the second preset CLI threshold. If the CLI value included in the beam measurement result is the current reference signal received power RSRP of the measurement signal, then 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 CLI value included in the beam measurement result is the RSRP determined based on the current RSRP and historical RSRP, then the target CLI value is the RSRP included in the beam measurement result. The crosslink interference measurement method according to claim 19, characterized by the above.

21. At each interfering base station, the ratio of the second limiting beam to all beams of the interfering base station is smaller than a preset ratio. At each interfering base station, the number of times the second limiting beam is limited is greater than the number of times the other beams at that interfering base station are limited. A crosslink interference measurement method according to any one of claims 16 to 20, characterized in that

22. Sending a first active message to the target damaged base station and a third active message to the target interfering base station, wherein the first and third active messages include an identifier for a restriction window awaiting activation, the restriction window awaiting activation at the target damaged base station is a window that restricts the same beam as the directing area of ​​the first restriction beam, the restriction window awaiting activation at the target interfering base station is a window that restricts the second restriction beam, the first restriction beam is a beam whose CLI value measured by the target damaged base station is greater than a first preset CLI threshold, the target damaged base station is a damaged base station having the first restriction beam, the target interfering base station is an interfering base station having the second restriction beam, and / or The method involves transmitting a set of beam measurement results from cross-link interference CLI measurements performed by each affected base station to a target interfering base station, wherein the beam measurement result set includes a second restricted beamlist and a second recommended beamlist, the second restricted beamlist includes an identifier for the measurement signal corresponding to each of the second restricted beams of the target interfering base station, and the second recommended beamlist includes an identifier for the measurement signal corresponding to each of the second recommended beams of the target interfering base station. The crosslink interference measurement method according to claim 16, characterized in that

23. The first active message and the third active message further include first placement information for the activation-awaiting restriction window, the first placement information for the activation-awaiting restriction window indicates the time slot occupied by the activation-awaiting restriction window. The crosslink interference measurement method according to claim 22, characterized in that

24. The first placement information for each restriction window includes one or more placement parameters among the reference subcarrier interval (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. The reference SCS for the restriction window is the SCS of the aforementioned interfering base station. The length of the limit window is less than or equal to the frame period. The period of the limit window is an integer multiple of the frame period. The offset amount of the limit window within one frame period does not exceed the last time slot within that frame period. The crosslink interference measurement method according to claims 5, 8, and 22, characterized by the above.

25. A crosslink interference measuring device applicable to a damaged base station, A first receiving means used to receive different measurement signals transmitted from an interfering base station using different beams within an interfering measurement window, wherein the measurement signals correspond one-to-one with the beams and the directions of the different beams are different. A measurement means used to measure the crosslink interference CLI value of the beams corresponding to each measurement signal based on each measurement signal, A generation means used to generate beam measurement results based on the respective CLI values ​​of each beam, The system includes a transmission means used to transmit the beam measurement results to a controller, The transmission means is used to transmit the latest beam measurement results to the controller according to a preset reporting cycle, or to transmit the beam measurement results to the controller when a preset trigger condition is met. The preset reporting period is greater than or equal to the period of the interference measurement window, and the preset reporting period is less than or equal to the maximum possible period of the interference measurement window. The aforementioned preset trigger condition is that, among all beams used by the interfering base station, the first limiting beam changes and / or the first recommended beam changes, wherein the first limiting beam is a beam whose CLI value is greater than the first preset CLI threshold, and the first recommended beam is a beam whose CLI value is less than the second preset CLI threshold. A crosslink interferometry device characterized by the following:

26. The aforementioned measuring means is Measure the current reference signal received power RSRP for each measurement signal as the beam crosslink interference CLI value corresponding to each measurement signal, or This is used to measure the current RSRP of each measurement signal and update the crosslink interference CLI value of the beam corresponding to each measurement signal based on the current RSRP and historical RSRP of each measurement signal. The crosslink interference measuring device according to claim 25, characterized in that...

27. A crosslink interferometry device applied to an interfering base station, The aforementioned interfering base station has at least one measurement signal, and the time-frequency area resources occupied by some or all of the at least one measurement signals are within the interfering measurement window, the measurement signals correspond one-to-one with beams, and the beams have different directions. Acquisition means for acquiring second resource allocation information of the aforementioned interference base station, wherein the second resource allocation information is used to indicate the time-frequency area resource occupied by the at least one measurement signal, The system includes a transmitting means used to transmit a measurement signal to a damaged base station using different beams based on the second resource placement information, The acquisition means is used to receive the second resource placement information of the interfering base station transmitted from the controller. A first receiving means and / or a second receiving means used to receive a set of beam measurement results of crosslink interference CLI measurements by each affected base station transmitted from a controller, wherein the set of beam measurement results includes a second limit beam list and a second recommendation beam list, the second limit beam list includes an identifier of a measurement signal corresponding to each of the second limit beams of the interfering base station, and the second recommendation beam list includes an identifier of a measurement signal corresponding to each of the second recommendation beams of the interfering base station, the second limit beam being a beam awaiting limit, and the second recommendation beam being a beam awaiting recommendation. The system further comprises a second receiving means, which receives a third active message transmitted from the controller, the third active message including an identifier for a restriction window awaiting activation, the restriction window awaiting activation being a window that restricts the second restriction beam, and when the next frame cycle is reached, it deactivates the activated restriction window, activates the restriction window awaiting activation based on the third active message, restricts the transmission of data to the user device using the second restriction beam within the activated restriction window, transmits data to the user device using the second recommended beam, and is used to transmit data to the user device using a beam in any direction outside the activated restriction window, The ratio of the second limiting beam to all beams of the aforementioned interfering base station is smaller than a preset ratio. A crosslink interferometry device characterized by the following:

28. A crosslink interference measuring device applied to a controller, The acquisition means is used to acquire second arrangement information of the interference measurement window of an affected base station and second resource arrangement information of the measurement signals of each interfering base station, wherein the second arrangement information indicates the time slot occupied by the interference measurement window, and the second resource arrangement information of each interfering base station indicates the time-frequency area resource occupied by each of the measurement signals of that interfering base station, and in each interfering base station, the measurement signals correspond one-to-one with beams, and different beam directions are different. A first transmission means that transmits the second resource allocation information to the affected base station, transmits the second resource allocation information of each interfering base station to the interfering base station, and transmits the first resource allocation information to the affected base station, wherein the first resource allocation information includes an identifier for the first resource allocation information and the second resource allocation information of each interfering base station, and the identifier for the first resource allocation information is used to correspond one-to-one with the affected base station, The aforementioned interference measurement windows may be one or more, and the activated interference measurement windows are used for CLI measurements. The system further comprises a second transmission means, which is used to transmit a second active message to the affected base station, wherein the second active message includes an identifier for an interference measurement window awaiting activation. The second placement information includes one or more placement parameters among the reference subcarrier interval (SCS) of the interference measurement window, the length of the interference measurement window, the period of the interference measurement window, and the offset amount of the interference measurement window within one frame period, wherein the reference SCS of the interference measurement window is a fixed SCS or the SCS of the affected base station, the length of the interference measurement window is less than or equal to the frame period, the period of the interference measurement window is an integer multiple of the frame period, and the offset amount of the interference measurement window within one frame period does not exceed the last time slot within the frame period. A crosslink interferometry device characterized by the following:

29. A base station comprising a processor, a communication interface, memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus. The aforementioned memory is used to store computer programs. When the processor executes the program stored in the memory, it is used to realize the steps of the crosslink interference measurement method described in any one of claims 1 to 12. A base station characterized by the following features.

30. A controller comprising a processor, a communication interface, memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus. The aforementioned memory is used to store computer programs. When the processor executes the program stored in the memory, it is used to realize the steps of the crosslink interference measurement method described in any one of claims 13, 15-20, 22-23. A controller characterized by the following features.

31. A computer-readable storage medium wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, it realizes the steps of the crosslink interference measurement method described in any one of claims 1 to 13, 15 to 20, or 22 to 23. A computer-readable storage medium characterized by the following features.

Images