Signal interference avoidance method, apparatus, device, medium, and product

Abstract

The present disclosure relates to the technical field of wireless communication, and particularly relates to a signal interference avoidance method, device, equipment, medium and product. The method comprises the following steps: receiving a measurement signal sent by a second base station, and sending the measurement signal to a target terminal; positioning a target grid where the target terminal is located based on a wireless grid map; obtaining historical signal direction information in the target grid; when the historical signal direction information meets a preset condition, sending corresponding historical signal direction information to the second base station; when the historical signal direction information does not meet the preset condition, obtaining signal direction information measured by the target terminal, and sending the signal direction information to the second base station. Through the wireless grid map, continuous learning and dynamic updating of the historical signal direction information can be performed, so that the first base station can directly position the target grid where the target terminal is located through the preset wireless grid map, and obtain real-time and accurate historical data, which is beneficial to reducing the measurement waiting time and improving the cooperation efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus, device, medium, and product for avoiding signal interference. Background Technology

[0002] To improve network speed, 5G networks use multiple base stations to cover the same area simultaneously, and these base stations operate on the same frequency, a process known as co-frequency networking. However, in 5G co-frequency networking scenarios, user terminals located at the edge of the base station's signal coverage are susceptible to interference from the signals of multiple base stations, leading to slower network speeds. Therefore, Coordinated Beam Forming (CBF) technology is introduced. CBF technology involves one base station acting as the primary base station serving the user terminal, while the remaining neighboring base stations act as cooperating base stations. The service beams of the cooperating base stations nullify the signal to the user terminal, thereby avoiding or reducing signal interference.

[0003] CBF (Cover-of-Flight) technology requires user terminals to send Sounding Reference Signals (SRS) to both the primary and cooperating base stations. This allows the cooperating base stations to pinpoint the location of the user terminals and ensure effective beamforming. However, user terminals at the coverage edge have weak uplink signals, and the SRS received by the cooperating base stations is even weaker. This results in inaccurate downlink channel weights measured by the cooperating base stations, making it difficult to determine the signal direction of the user terminals and hindering effective signal interference avoidance. Summary of the Invention

[0004] In view of the above problems, this disclosure is made to provide a signal interference avoidance method, apparatus, device, medium and product.

[0005] According to one aspect of this disclosure, a signal interference avoidance method is provided, comprising: The system receives measurement signals sent by the second base station and sends measurement signals to the target terminal. The first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signals are used by the target terminal to measure the signal direction information relative to the second base station. Based on a preset wireless grid map, the target grid where the target terminal is located is located; wherein, the wireless grid map is used to record historical signal direction information measured in the area. Acquire historical signal direction information in the target grid and determine whether the historical signal direction information meets preset conditions; When the historical signal direction information meets the preset conditions, the corresponding historical signal direction information is sent to the second base station so that the second base station can perform nulling on the target terminal; when the historical signal direction information does not meet the preset conditions, the signal direction information obtained by the target terminal based on the measurement signal is obtained and sent to the second base station so that the second base station can perform nulling on the target terminal.

[0006] The beneficial effects of this solution are as follows: Through the wireless grid map, the historical signal direction information corresponding to the first and second base stations can be continuously learned and dynamically updated. This allows the first base station to directly locate the target grid (i.e., sub-region) where the target terminal is located using the preset wireless grid map, obtaining real-time and accurate historical data from the target grid. If the historical data is abundant enough, the second base station can directly use it, which helps reduce measurement waiting time and improves the cooperation efficiency between base stations. If the historical data is insufficient, measuring the signal direction information relative to the second base station using the target terminal and measurement signals allows the second base station to perform nulling on the target terminal, achieving signal interference avoidance for the target terminal.

[0007] Furthermore, according to one aspect of the signal interference avoidance method of this disclosure, before receiving the measurement signal transmitted by the second base station and transmitting the measurement signal to the target terminal, the method further includes: Identify the target terminal that needs to be signal interference evasion, and confirm the start of the signal interference evasion process for the target terminal; The target terminal's detection reference signal is sent to the second base station so that the second base station can identify the detection reference signal.

[0008] In one or more embodiments, the beneficial effect of this solution is that after the first base station confirms the target terminal that needs to be avoided by signal interference, it can inform the second base station to perform cooperative beamforming on the target terminal, i.e., signal interference avoidance, by sending a detection reference signal to the second base station, which is conducive to improving the cooperation efficiency between base stations.

[0009] Furthermore, according to one aspect of the signal interference avoidance method disclosed herein, the identification process of the detection reference signal by the second base station includes: Identify whether the signal quality of the detection reference signal meets the preset quality requirements; If the signal quality of the probe reference signal meets the preset quality requirements, the second base station measures the signal direction information based on the probe reference signal, performs nulling on the target terminal based on the signal direction information, and records the signal direction information in the wireless grid map. If the signal quality of the probe reference signal does not meet the preset quality requirements, the second base station sends a measurement signal to the first base station.

[0010] In one or more embodiments, the beneficial effects of this solution are as follows: The second base station identifies the signal quality of the probe reference signal, such as whether it meets the demodulation threshold. If it does, it indicates that the signal quality of the probe reference signal is good, and the second base station can directly measure the signal direction information of the target terminal through the probe reference signal, which is beneficial for achieving null processing of the target terminal. If it does not meet the threshold, it indicates that the signal quality of the probe reference signal is poor and insufficient for the second base station to measure the signal direction information of the target terminal. In this case, the second base station needs to switch to a beam nulling strategy, that is, send a measurement signal to the first base station, which forwards the measurement signal to the target terminal, and the target terminal measures the signal direction information and reports it, so as to achieve null processing of the target terminal by the second base station.

[0011] Furthermore, according to one aspect of the signal interference avoidance method disclosed herein, after the second base station performs nullification on the target terminal, the second base station records the received historical signal direction information or signal direction information in the wireless grid map.

[0012] In one or more embodiments, the beneficial effects of this solution are as follows: by recording the historical signal direction information or signal direction information received by the second base station in the wireless grid map, the real-time dynamic updating and management of the wireless grid map is realized. The wireless grid map divides the wireless environment into multiple sub-regions (i.e., grids, such as 50×50 meters), and collects and analyzes wireless signal data (such as signal direction information) in each grid to understand information such as signal quality and interference, which is conducive to realizing refined management of wireless network performance.

[0013] Furthermore, the signal interference avoidance method according to one aspect of this disclosure also includes: Obtain the sequence of beams most recently passed by the target terminal; Based on beam sequences, the target movement path is matched from a pre-built fingerprint database; the fingerprint database includes multiple pre-collected user movement paths, which represent the beams that the user passes through when moving from point A to point B. Based on the target's movement path, predict the next beam that the target terminal will pass through; Based on the predicted next beam, instructions are sent to the target terminal.

[0014] In one or more embodiments, the beneficial effects of this solution are as follows: A large number of instructions still need to be transmitted between the target terminal and the first base station, such as notifying the target terminal to "start receiving" or "switch to another frequency band." To ensure the target terminal can stably receive these instructions, the first base station needs to use a narrow beam to send them. Therefore, the target terminal needs to periodically report which beam provides the best signal, i.e., the strongest beam information. However, if the target terminal is in a high-speed moving state or a channel with rapid attenuation, the strongest beam information received by the first base station may be "outdated," meaning the first base station uses an "old beam" that the target terminal has already left to send instructions, which can easily lead to a decrease in the quality of instructions received by the target terminal, affecting the overall internet experience. To address this, this solution pre-collects a fingerprint database of beams traversed by user devices moving within the coverage area. This fingerprint database contains a large number of common user movement paths. By matching the target terminal's most recently traversed beam sequence from the fingerprint database to the target movement path, the beam the target terminal is about to traverse can be predicted. The second base station can then use this predicted beam to send instructions to the target terminal, which is beneficial for intelligently predicting the target terminal's location, dynamically adjusting the beam, and improving the user's internet experience.

[0015] Furthermore, the signal interference avoidance method according to one aspect of this disclosure also includes: Obtain the next beam that the target terminal actually passes through; The predicted next beam is compared with the actual next beam that passes by to obtain the matching degree; If the matching degree is greater than or equal to the preset threshold, the beam sequence and the next beam actually passed are stored in the fingerprint database; if the matching degree is less than the preset threshold, an instruction is sent to the target terminal based on the next beam actually passed.

[0016] In one or more embodiments, the beneficial effects of this solution are as follows: By comparing the predicted beam and the real beam, the prediction accuracy can be obtained. If the matching degree is greater than or equal to a preset threshold, the real beam and beam sequence are added to the fingerprint database as new data, which helps improve future prediction accuracy. If the matching degree is less than the preset threshold, it indicates that the prediction has failed, and the beam needs to be corrected immediately, switching to the real beam to issue commands. At the same time, the beam sequence most recently passed by the target terminal is reacquired and rematched in the fingerprint database to start a new round of prediction, which helps improve future prediction accuracy.

[0017] According to another aspect of this disclosure, a signal interference avoidance device is provided, applied to a first base station, comprising: The receiving module is used to receive the measurement signal sent by the second base station and send the measurement signal to the target terminal; wherein, the first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signal is used for the target terminal to measure the signal direction information relative to the second base station; The positioning module is used to locate the target grid where the target terminal is located based on a preset wireless grid map; wherein, the wireless grid map is used to record historical signal direction information measured in the area. The judgment module is used to obtain historical signal direction information in the target grid and determine whether the historical signal direction information meets the preset conditions. The transmitting module is used to transmit the corresponding historical signal direction information to the second base station when the historical signal direction information meets the preset conditions, so that the second base station can perform nulling processing on the target terminal; when the historical signal direction information does not meet the preset conditions, it acquires the signal direction information measured by the target terminal based on the measurement signal and transmits the signal direction information to the second base station, so that the second base station can perform nulling processing on the target terminal.

[0018] According to another aspect of this disclosure, a computer device is provided, including a memory, a processor, and a computer program stored in the memory, the processor executing the computer program to implement the method of one aspect above.

[0019] According to another aspect of this disclosure, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the method of one aspect above.

[0020] According to another aspect of this disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the method of the above-described aspect.

[0021] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0022] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0023] Figure 1 This is a system architecture diagram illustrating a signal interference avoidance method according to an embodiment of the present disclosure.

[0024] Figure 2 This is a flowchart illustrating the beam improvement process of a PDCCH channel according to an embodiment of the present disclosure.

[0025] Figure 3 This is a flowchart illustrating a signal interference avoidance method according to an embodiment of the present disclosure.

[0026] Figure 4 This is a schematic diagram of the structure of a signal interference avoidance device according to an embodiment of the present disclosure.

[0027] Figure 5 This is a schematic diagram illustrating the structure of a computer device according to an embodiment of the present disclosure.

[0028] Figure 6 This is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0030] To improve network speed, 5G networks often use multiple base stations to cover the same area simultaneously, and these base stations operate on the same frequency, a process known as co-frequency networking. In 5G co-frequency networking scenarios, user terminals (UEs) located in overlapping areas at the edges of base station signal coverage are susceptible to mutual interference between the signals of multiple base stations, leading to slower network speeds. Therefore, Cooperative Beamforming (CBF) technology is introduced. CBF technology involves one base station acting as the primary base station serving the UE, while the remaining neighboring base stations act as cooperating base stations. Both the primary and cooperating base stations simultaneously measure the UE's uplink SRS signal. The cooperating base stations calculate the UE's downlink channel weights based on the SRS signal. When cooperating base stations schedule UEs at the edge of their area, they apply nulling to the UE using service beams, thereby reducing signal interference to that UE.

[0031] When 5G Radio Access Technology (NR) demodulates the Physical Downlink Control Channel (PDCCH), each PDCCH has a dedicated DeModulation Reference Signal (DM-RS) for channel estimation. Therefore, different types of beamforming can be used. This beamforming is transparent to the UE. Compared to the non-beamforming control channel of LTE, the beamforming control channel is beneficial for coverage and performance improvement.

[0032] Currently, the commonly used PDCCH cooperative beamforming schemes mainly include the following two types: (1) A beamforming scheme based on the base station Synchronization Signal / PBCH Block (SSB) broadcast wide beam, that is, if the NR is configured with SSB single beam (wide beam), the PDCCH transmission process also reuses the equivalent weight of the SSB wide beam to achieve wide beam coverage.

[0033] (2) Based on the base station SSB narrow beam shaping scheme, that is, if the NR is configured with SSB multi-beam (narrow beam), the PDCCH transmission process will use the narrow beam information of the UE's current location to obtain the corresponding transmission weight.

[0034] However, existing CBF technology still has the following drawbacks: 1) CBF technology requires the user terminal (UE) to send SRS signals to the primary base station and cooperating base stations so that the cooperating base stations can locate the UE's position and ensure beamforming effect. However, the uplink signal of UEs at the coverage edge is weak, and the SRS received by the cooperating base stations is even weaker, resulting in inaccurate downlink channel weights measured by the cooperating base stations, which will cause deviations in the CBF beamforming effect; or the cooperating base stations may not be able to measure the effective uplink SRS signal of the UE, and thus cannot achieve effective cooperative beamforming interference avoidance.

[0035] 2) After a UE accesses the network, it will be assigned a corresponding PDCCH to interact with the main base station. For example, the PDCCH can send commands to the UE, and the UE can periodically report which beam has the best signal, i.e., the strongest SSB beam. However, the capacity of the PDCCH channel is limited, and the UE cannot report frequently. Moreover, if the UE is in a high-speed moving state or in a scenario where the channel is fading rapidly, the strongest SSB beam received by the main base station may become outdated, resulting in a decrease in the quality of commands received by the UE and affecting the user's overall Internet experience.

[0036] The above description, with reference to the accompanying drawings, illustrates a signal interference avoidance method, apparatus, device, medium, and product according to embodiments of the present disclosure. Through a wireless grid map, the historical signal direction information corresponding to the main base station and cooperating base stations can be continuously learned and dynamically updated. This allows the main base station to directly locate the target grid where the target terminal is located using a preset wireless grid map, obtaining real-time and accurate historical data from the target grid. If the historical data is abundant enough, the cooperating base station can directly use this data, which helps reduce measurement waiting time and improves the cooperation efficiency between base stations. If the historical data is insufficient, the signal direction information relative to the cooperating base station can be measured using the target terminal and measurement signals. This allows the cooperating base station to perform nulling on the target terminal, achieving signal interference avoidance for the target terminal.

[0037] To facilitate understanding of this embodiment, a signal interference avoidance method disclosed in this disclosure will first be described in detail. The execution subject of the signal interference avoidance method provided in this disclosure is generally a computer device with a certain computing power, such as a terminal device, a server, or other processing device. In some possible implementations, the signal interference avoidance method can be implemented by the processor calling computer-readable instructions stored in memory.

[0038] like Figure 1 The diagram shown is a system architecture diagram of the signal interference avoidance method provided in this embodiment of the disclosure, including a main base station 1, a cooperating base station 2, a target UE 3, and a fingerprint database 4. The following is a detailed description of each module and its process: Main base station 1: The first base station serving the target UE, used to detect in real time whether there is a target UE that meets the cooperation threshold among the UEs at the edge of the area coverage. If there is, the SRS signal of the target UE is sent to the cooperating base station, and the cooperative beamforming interference avoidance process is initiated.

[0039] The threshold for cooperation indicates the need to avoid signal interference, such as when the signal quality deteriorates or is subject to interference.

[0040] Cooperative base station 2: A second base station located in the same coverage area as the main base station, used to identify the received SRS signal, determine whether the SRS signal meets the demodulation threshold, and perform nulling on the target UE or request assistance from the target UE based on the identification result.

[0041] Specifically, it includes: ① Receive the SRS signal of the target UE sent by the main base station and determine whether the demodulation threshold is met; Among them, the demodulation threshold is the preset quality requirement, such as whether the signal quality is clear enough.

[0042] ②If the signal quality of the SRS signal meets the demodulation threshold, the cooperating base station measures the signal direction information of the target UE based on the SRS signal; Among them, the signal direction information is used by the cooperating base station to determine the location of the target UE. Specifically, it includes the precoding matrix indication (PMI). The cooperating base station performs nulling on the target UE based on the signal direction information and records the signal direction information in the wireless grid map.

[0043] ③ If the signal quality of the SRS signal does not meet the demodulation threshold, the cooperating base station switches to PMI-based beam nulling, notifies the master base station of the handover strategy, and sends a CSI-RS measurement signal to the master base station. The master base station then notifies the target UE of the CSI-RS measurement signal via a message interface.

[0044] Master Base Station 1: After receiving the notification of the cooperating base station handover policy and the CSI-RS measurement signal, it forwards the CSI-RS measurement signal to the target UE and retrieves the preset wireless grid map.

[0045] The wireless grid map is used to record historical signal direction information measured in the coverage area, including historical PMI. The wireless grid map divides the wireless environment (i.e., the coverage area) into multiple sub-areas (i.e., grids, such as 50×50 meters). Each grid records the historical PMI measured by users about each base station. By analyzing these historical PMIs, information such as signal quality and interference can be understood, which is conducive to achieving refined management of wireless network performance.

[0046] The specific process includes: ① Locate the target grid where the UE is located; ② Obtain the historical PMI in the target grid and determine whether the historical PMI meets the preset conditions, such as whether the historical PMI data is sufficient and has enough reference value; ③ If the preset conditions are met, the main base station directly sends the historical PMI of the target grid to the cooperating base station, and the cooperating base station measures the signal direction of the target UE based on the historical PMI in order to perform null processing on the target UE. ④ If the preset conditions are not met, the actual measured PMI needs to be obtained from the target UE.

[0047] Target UE 3: Used to receive CSI-RS measurement signals sent by the primary base station. The primary base station sends two CSI-RS measurement signals: one from the cooperating base station and the other from the primary base station. The target UE measures the PMI for the primary base station and the PMI for the cooperating base station based on these two signals, and reports both PMIs to the primary base station, which then forwards them to the cooperating base stations.

[0048] Cooperative base station 2: After receiving the PMI (whether it is a historical PMI or an actual measured PMI), it records it in the wireless grid map, determines the location or signal direction of the target UE, and performs nulling on the target UE to reduce signal interference to the target UE.

[0049] This embodiment constructs a wireless grid map, collects and analyzes historical wireless signal data on a grid-by-grid basis, and continuously records and learns historical signal direction information within the grid, including signal quality, interference, and neighboring cells. This enables dynamic and refined management of the grid-level wireless network performance, which is beneficial for the direct reuse and transmission of historical data under the corresponding grid, reducing measurement waiting time and improving collaboration efficiency.

[0050] Fingerprint Database 4: Includes multiple pre-collected user movement paths, which represent the strongest SSB beams that a user passes through when moving from point A to point B.

[0051] Specifically, during routine operations, we collect continuous change data of the strongest SSB beam as users move within the coverage area. For example, when moving from point A to point B, a user typically passes through beam 3 → beam 7 → beam 12 in sequence, which constitutes a user movement path (also known as a beam sequence). Based on this continuous change data, we analyze the common patterns of user movement paths within this area and establish a fingerprint database.

[0052] Specifically, such as Figure 2 The diagram shown is a flowchart of beamforming improvements for the PDCCH channel, including: S201: After the UE accesses the base station's network, the base station (e.g., the main base station) obtains the sequence of beams that the UE actually passed through in the previous S1 seconds of the call detail record (CDR) as the latest beam tracking information; S202: Based on the beam sequence of the previous S1 seconds, match the most similar user movement path from the fingerprint database to obtain the target movement path; S203: If the similarity between the beam sequence of the previous S1 seconds and the target moving path is greater than or equal to the threshold X1, then predict the next beam P1 that the UE will pass through based on the target moving path. If the similarity between the beam sequence of the first S1 seconds and the target movement path in the fingerprint database exceeds X1, the sub-beam position where the user may stay next is predicted based on the target movement path, and the corresponding sub-beam information P1 (including beamType, beamID, weight, demodulation indication, etc.) is obtained as the input for updating the weight of PDCCH narrow beamforming. S204: Based on the predicted next beam P1, send control commands to the UE; Specifically, the next beam P1 is directly used as the weight index for narrow beamforming of the PDCCH channel to achieve PDCCH weighting and transmission.

[0053] S205: After the current UE triggers the next scheduling request, obtain the next beam Q1 that the beam sequence reported by the UE actually passed through, and compare beam P1 with beam Q1 to obtain the matching degree; S206: Determine whether the matching degree is greater than or equal to the preset threshold X2; If yes, it means the prediction is accurate, then proceed to S207; if no, it means the prediction failed, then proceed to S208. S207: Store the beam sequence and the actual beam passed through Q1 into the fingerprint database; S208: Switch beam P1 to beam Q1 and send control commands to the UE based on beam Q1; Specifically, the current beam weight is switched to the PDCCH weight configuration of the beam Q1 index in a timely manner, and the beam sequence that passed through the previous S2 seconds of the UE call detail record is obtained again and used as a complete input. S201-S208 are executed repeatedly to start a new round of prediction.

[0054] This embodiment introduces a PDCCH beam prediction algorithm. By using prior information from the fingerprint database, the algorithm can predict the coverage beam information of the UE's next possible location based on the fingerprint database before the UE's actual beam is updated in time. This dynamically updates the weights of PDCCH narrow beamforming, which helps to solve the performance degradation problem caused by the untimely update of the strongest beam information. This enables PDCCH narrow beamforming to achieve significant performance gains in high-speed mobile scenarios and fast channel fading scenarios, further improving user experience.

[0055] Based on the above embodiments, this embodiment also provides a signal interference avoidance method, such as... Figure 3 The diagram shows a flowchart of a signal interference avoidance method, including steps S301-S304: S301: Receive the measurement signal sent by the second base station and send the measurement signal to the target terminal; The first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signal is used for the target terminal to measure the signal direction information relative to the second base station. S302: Based on a preset wireless grid map, locate the target grid where the target terminal is located; Among them, the wireless grid map is used to record historical signal direction information of historical measurements within the area; S303: Obtain historical signal direction information in the target grid and determine whether the historical signal direction information meets the preset conditions; S304: When the historical signal direction information meets the preset conditions, send the corresponding historical signal direction information to the second base station so that the second base station can perform nulling on the target terminal; when the historical signal direction information does not meet the preset conditions, obtain the signal direction information of the target terminal based on the measurement signal, and send the signal direction information to the second base station so that the second base station can perform nulling on the target terminal.

[0056] In one or more embodiments, before receiving the measurement signal sent by the second base station and sending the measurement signal to the target terminal, the method further includes: The system acquires the target terminal that needs to be evaded from signal interference and confirms the initiation of the signal interference evasion process for the target terminal. It then sends the detection reference signal of the target terminal to the second base station for the second base station to identify the detection reference signal.

[0057] After the first base station confirms the target terminal that needs to be avoided from signal interference, it can send a detection reference signal to the second base station to inform the second base station to perform cooperative beamforming on the target terminal, i.e., signal interference avoidance, which is conducive to improving the cooperation efficiency between base stations.

[0058] In one or more embodiments, the identification process of the detection reference signal by the second base station includes: Identify whether the signal quality of the detection reference signal meets the preset quality requirements; If the signal quality of the probe reference signal meets the preset quality requirements, the second base station measures the signal direction information based on the probe reference signal, performs nulling on the target terminal based on the signal direction information, and records the signal direction information in the wireless grid map. If the signal quality of the probe reference signal does not meet the preset quality requirements, the second base station sends a measurement signal to the first base station.

[0059] The second base station identifies the signal quality of the probe reference signal, such as whether it meets the demodulation threshold. If it does, the signal quality is good, and the second base station can directly measure the signal direction information of the target terminal, which is beneficial for nulling the target terminal. If it does not meet the threshold, the signal quality is poor and insufficient for the second base station to measure the signal direction information of the target terminal. In this case, the second base station needs to switch to a beam nulling strategy, that is, send a measurement signal to the first base station, which forwards the measurement signal to the target terminal. The target terminal measures the signal direction information and reports it, thus enabling the second base station to perform nulling on the target terminal.

[0060] In one or more embodiments, after the second base station performs nullification on the target terminal, the second base station records the received historical signal direction information or signal direction information in the wireless grid map.

[0061] By recording historical signal direction information or signal direction information received by the second base station in the wireless grid map, real-time dynamic updating and management of the wireless grid map are realized. The wireless grid map divides the wireless environment into multiple sub-regions (i.e., grids, such as 50×50 meters), and collects and analyzes wireless signal data (such as signal direction information) in each grid to understand information such as signal quality and interference, which is conducive to realizing refined management of wireless network performance.

[0062] In one or more embodiments, it further includes: Obtain the sequence of beams most recently passed by the target terminal; Based on beam sequences, the target movement path is matched from a pre-built fingerprint database; the fingerprint database includes multiple pre-collected user movement paths, which represent the beams that the user passes through when moving from point A to point B. Based on the target's movement path, predict the next beam that the target terminal will pass through; Based on the predicted next beam, instructions are sent to the target terminal.

[0063] A fingerprint database is constructed by pre-collecting a large number of beams that user devices have traversed while moving within the coverage area. This database contains a large number of common user movement paths. By matching the target terminal's most recently traversed beam sequence with the target movement path from the fingerprint database, it is possible to predict the beam that the target terminal will soon pass through. The second base station can then use this predicted beam to send instructions to the target terminal. This facilitates intelligent prediction of the target terminal's location, dynamic beam adjustment, and improved user internet access experience.

[0064] In one or more embodiments, it further includes: Obtain the next beam that the target terminal actually passes through; The predicted next beam is compared with the actual next beam that passes by to obtain the matching degree; If the matching degree is greater than or equal to the preset threshold, the beam sequence and the next beam actually passed are stored in the fingerprint database; if the matching degree is less than the preset threshold, an instruction is sent to the target terminal based on the next beam actually passed.

[0065] By comparing the predicted beam and the actual beam, the prediction accuracy can be obtained. If the matching degree is greater than or equal to a preset threshold, the actual beam and beam sequence are added to the fingerprint database as new data, which helps improve future prediction accuracy. If the matching degree is less than the preset threshold, it indicates that the prediction has failed, and the beam needs to be corrected immediately, switching to the actual beam to issue commands. At the same time, the beam sequence most recently passed by the target terminal is reacquired and rematched in the fingerprint database to start a new round of prediction, which helps improve future prediction accuracy.

[0066] According to another aspect of the embodiments of this disclosure, a signal interference avoidance device is provided, such as... Figure 4 As shown, the device includes: The receiving module 401 is used to receive the measurement signal sent by the second base station and send the measurement signal to the target terminal; wherein, the first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signal is used for the target terminal to measure the signal direction information relative to the second base station; The positioning module 402 is used to locate the target grid where the target terminal is located based on a preset wireless grid map; wherein, the wireless grid map is used to record historical signal direction information measured in the area. The judgment module 403 is used to obtain historical signal direction information in the target grid and determine whether the historical signal direction information meets the preset conditions. The transmitting module 404 is used to transmit the corresponding historical signal direction information to the second base station when the historical signal direction information meets the preset conditions, so that the second base station can perform nulling processing on the target terminal; when the historical signal direction information does not meet the preset conditions, it acquires the signal direction information measured by the target terminal based on the measurement signal and transmits the signal direction information to the second base station, so that the second base station can perform nulling processing on the target terminal.

[0067] The signal interference avoidance device is further configured to: before receiving the measurement signal sent by the second base station and sending the measurement signal to the target terminal, acquire the target terminal that needs to be signal interference avoided, confirm the start of the signal interference avoidance process of the target terminal; and send the detection reference signal of the target terminal to the second base station so that the second base station can identify the detection reference signal.

[0068] The signal interference avoidance device and the signal interference avoidance method provided in this disclosure are based on the same inventive concept and have the same beneficial effects as the methods they employ, operate, or implement.

[0069] This disclosure also provides a computer device for performing the above-described signal interference avoidance method. Please refer to... Figure 5 It illustrates a schematic diagram of a computer device provided by some embodiments of this disclosure. For example... Figure 5 As shown, the computer device 5 includes: a processor 500, a memory 501, a bus 502, and a communication interface 503. The processor 500, the communication interface 503, and the memory 501 are connected via the bus 502. The memory 501 stores a computer program that can run on the processor 500. When the processor 500 runs the computer program, it executes the signal interference avoidance method provided in any of the foregoing embodiments of this disclosure.

[0070] The memory 501 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this device network element and at least one other network element is achieved through at least one communication interface 503 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc.

[0071] Bus 502 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory 501 is used to store programs. After receiving an execution instruction, the processor 500 executes the program. The signal interference avoidance method disclosed in any of the foregoing embodiments of this disclosure can be applied to the processor 500, or implemented by the processor 500.

[0072] The processor 500 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of the processor 500 or by instructions in software form. The processor 500 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPTA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this disclosure can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 501. The processor 500 reads the information in memory 501 and, in conjunction with its hardware, completes the steps of the above method.

[0073] The computer device provided in this disclosure and the signal interference avoidance method provided in this disclosure are based on the same inventive concept and have the same beneficial effects as the methods they employ, operate, or implement.

[0074] This disclosure also provides a computer-readable storage medium corresponding to the signal interference avoidance method provided in the foregoing embodiments. The computer-readable storage medium is an optical disc, on which a computer program (i.e., a computer program product) is stored. When the computer program is run by a processor, it executes the signal interference avoidance method provided in any of the foregoing embodiments.

[0075] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.

[0076] The computer-readable storage medium provided in the above embodiments of this disclosure and the signal interference avoidance method provided in the embodiments of this disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the applications stored therein.

[0077] This disclosure also provides a computer program product; please refer to [reference needed]. Figure 6 The computer program product 600 carries program code, namely computer program 601. The instructions included in the computer program 601 can be used to execute the steps of the signal interference avoidance method described in the above method embodiments. For details, please refer to the above method embodiments, which will not be repeated here.

[0078] The aforementioned computer program product can be implemented through hardware, software, or a combination thereof. In one optional embodiment, the computer program product is specifically embodied in a computer storage medium; in another optional embodiment, the computer program product is specifically embodied in a software product, such as a software development kit (SDK), etc.

[0079] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0080] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0081] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0082] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0083] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0084] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0085] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A signal interference avoidance method, characterized in that, Applied to the first base station, including: The system receives a measurement signal sent by a second base station and sends the measurement signal to a target terminal. The first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signal is used by the target terminal to measure signal direction information relative to the second base station. Based on a preset wireless grid map, the target grid where the target terminal is located is located; wherein, the wireless grid map is used to record historical signal direction information measured in the area. Obtain historical signal direction information in the target grid and determine whether the historical signal direction information meets preset conditions; When the historical signal direction information meets the preset conditions, the corresponding historical signal direction information is sent to the second base station so that the second base station can perform nulling on the target terminal; when the historical signal direction information does not meet the preset conditions, the signal direction information measured by the target terminal based on the measurement signal is obtained and sent to the second base station so that the second base station can perform nulling on the target terminal.

2. The signal interference avoidance method as described in claim 1, characterized in that, Before receiving the measurement signal sent by the second base station and sending the measurement signal to the target terminal, the process further includes: Obtain the target terminal that needs to be signal interference evasion, and confirm the start of the signal interference evasion process for the target terminal; The detection reference signal of the target terminal is sent to the second base station so that the second base station can identify the detection reference signal.

3. The signal interference avoidance method as described in claim 2, characterized in that, The identification process of the detection reference signal by the second base station includes: Identify whether the signal quality of the probe reference signal meets the preset quality requirements; If the signal quality of the detection reference signal meets the preset quality requirements, the second base station measures the signal direction information based on the detection reference signal, performs nulling on the target terminal based on the signal direction information, and records the signal direction information in the wireless grid map; If the signal quality of the detection reference signal does not meet the preset quality requirement, the second base station sends the measurement signal to the first base station.

4. The signal interference avoidance method as described in claim 1, characterized in that, After the second base station performs nullification on the target terminal, the second base station records the received historical signal direction information or the signal direction information in the wireless grid map.

5. The signal interference avoidance method as described in claim 1, characterized in that, Also includes: Obtain the sequence of beams most recently passed by the target terminal; Based on the beam sequence, the target movement path is matched from a pre-built fingerprint database; wherein, the fingerprint database includes multiple pre-collected user movement paths, and the user movement path represents the beam that the user passes through when moving from point A to point B; Based on the target movement path, predict the next beam that the target terminal will pass through; Based on the predicted next beam, instructions are sent to the target terminal.

6. The signal interference avoidance method as described in claim 5, characterized in that, Also includes: Obtain the next beam that the target terminal actually passes through; The predicted next beam is compared with the actual next beam to obtain the matching degree; If the matching degree is greater than or equal to a preset threshold, the beam sequence and the next beam that is actually passed are stored in the fingerprint database; if the matching degree is less than the preset threshold, an instruction is sent to the target terminal based on the next beam that is actually passed.

7. A signal interference avoidance device, characterized in that, Applied to the first base station, including: A receiving module is configured to receive a measurement signal sent by a second base station and send the measurement signal to a target terminal; wherein, the first base station is a base station serving the target terminal, the second base station includes base stations located in the same area as the first base station, the target terminal is a user equipment that needs to avoid signal interference, and the measurement signal is used for the target terminal to measure signal direction information relative to the second base station; The positioning module is used to locate the target grid where the target terminal is located based on a preset wireless grid map; wherein, the wireless grid map is used to record historical signal direction information measured in the area. The judgment module is used to obtain historical signal direction information in the target grid and determine whether the historical signal direction information meets preset conditions. The transmitting module is configured to transmit the corresponding historical signal direction information to the second base station when the historical signal direction information meets the preset conditions, so that the second base station can perform nulling processing on the target terminal; and to acquire the signal direction information measured by the target terminal based on the measurement signal and transmit the signal direction information to the second base station when the historical signal direction information does not meet the preset conditions, so that the second base station can perform nulling processing on the target terminal.

8. A computer embedded device, comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method described in any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method described in any one of claims 1 to 6.

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