Anti-interference control and multi-station cooperative frequency band allocation method and system for 5G base station

Abstract

The invention relates to the technical field of 5G communication, in particular to an anti-interference control and multi-station cooperative frequency band allocation method and system for a 5G base station, and the method comprises the steps: S01, carrying out the initialization of base station equipment, building a carrier wave, and enabling a board-level management module to obtain initial carrier wave configuration data; s02, acquiring configuration data of the anti-interference control signal and the cooperative control signal; and S03, selecting a corresponding carrier control method to reconfigure the initial carrier configuration according to the configuration data, wherein the method comprises an anti-interference control method and a multi-station cooperative control method. According to the invention, frequency band dynamic adjustment among multiple stations can be realized, the problem of interference between adjacent stations is reduced, and the overall communication quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of 5G communication technology, and specifically to a method and system for anti-interference control and multi-station collaborative frequency band allocation of a 5G base station. Background Art

[0002] With the rapid development of wireless communication technology and the popularization of mobile communications, cellular network base station equipment is increasingly widely used in various scenarios. However, base stations work in a complex electromagnetic environment, and there are various interferences. For example, based on the propagation characteristics of wireless signals, the signal will be affected by factors such as multipath effects, diffraction, and reflection during the propagation process. In addition, the existence of various radio interference sources will cause signal attenuation and distortion. With the increase in the number of users, in an environment where multiple base stations are densely deployed, the frequency band resources are limited. The introduction of spectrum sharing and reuse technology can easily lead to a decline in the communication quality of base stations, and even affect the user's communication experience in severe cases. Interference between adjacent frequency bands and cells has become the norm. With the evolution of 5G and future wireless communication networks, the interference problem has become more complicated. Therefore, how to avoid external interference to base stations and interference between base stations, and dynamically adjust spectrum resources, has become the key to improving base station stability and communication quality.

[0003] Traditional anti-interference measures mainly rely on hardware adjustments, physical optimization or breakthroughs in key technologies, which require high R&D costs and a long time investment. Summary of the invention

[0004] The present invention provides a method and system for anti-interference control and multi-station collaborative frequency band allocation of 5G base stations, which can realize dynamic adjustment of frequency bands between multiple stations, reduce interference problems between adjacent stations, and improve overall communication quality.

[0005] This application provides the following technical solutions:

[0006] The anti-interference control and multi-station coordinated frequency band allocation method of a 5G base station includes the following steps:

[0007] S01, the base station equipment is initialized, a carrier is established, and the board-level management module obtains initial carrier configuration data;

[0008] S02. Acquire configuration data of anti-interference control signals and cooperative control signals;

[0009] S03. When the anti-interference control signal and the collaborative control signal are both in the disabled state, the carrier is not reconfigured; when the anti-interference control signal is in the enabled state and the collaborative control signal is in the disabled state, the carrier is reconfigured according to the anti-interference method; when the anti-interference control signal is in the disabled state and the collaborative control signal is in the enabled state, the carrier is reconfigured according to the collaborative control method; when the anti-interference control signal and the collaborative control signal are both in the enabled state, the carrier is reconfigured according to the anti-interference and collaborative joint control method.

[0010] Furthermore, the anti-interference method comprises the following steps:

[0011] S311, start the anti-interference module and start disabling cell broadcast;

[0012] S312, the anti-interference module obtains initial carrier information and frequency scanning configuration from the board-level management module and performs spectrum scanning;

[0013] S313, the anti-interference module acquires and analyzes the spectrum data, obtains the interference information and the anti-interference decision configuration, and notifies the board-level management module, which analyzes the interference information and performs carrier reconfiguration according to the anti-interference decision configuration; after the carrier is reconfigured, the cell broadcast is started for user access;

[0014] S314: When no user accesses, repeat steps S311 to S313 to perform periodic monitoring.

[0015] Furthermore, the collaborative control method comprises the following steps:

[0016] S321, start the collaborative control module, complete the multicast initialization; start the cell broadcast disabling;

[0017] S322, the collaborative control module periodically queries the device frequency band parameters, generates a frequency band configuration list, and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO; each device in the multicast group generates a device management information table containing the frequency band parameters of all other sites according to the content of the received multicast message;

[0018] S323, determining a decision-making device in the multicast group;

[0019] S324, the decision-making device generates a frequency band decision result according to the frequency band information in the device management information table, and multicasts the frequency band decision result;

[0020] S325, each station performs carrier reconfiguration according to the frequency band decision result; after the carrier reconfiguration is completed, the cell broadcast is started for user access;

[0021] S326: When no user accesses, repeat steps S321 to S325 to perform periodic monitoring.

[0022] Furthermore, the anti-interference and coordinated joint control method comprises the following steps:

[0023] S331, start the collaborative control module to complete the multicast initialization; start the anti-interference module, obtain the initial carrier information and frequency scanning configuration from the board-level management module, and perform spectrum scanning; start the cell broadcast disabling;

[0024] S332, the collaborative control module periodically queries the device frequency band parameters, generates a frequency band configuration list, and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO; each device in the multicast group generates a device management information table containing the frequency band parameters of all other sites according to the content of the received multicast message; the anti-interference module obtains and analyzes the spectrum data to obtain interference information;

[0025] S333, determining a decision-making device in the multicast group;

[0026] S334, the decision-making device generates a frequency band decision result according to the frequency band configuration list and the interference information, and multicasts the frequency band decision result;

[0027] S335, each station performs carrier reconfiguration according to the frequency band decision result; after the carrier reconfiguration is completed, the cell broadcast is started for user access;

[0028] S336: When no user accesses, repeat steps S331 to S335 to perform periodic monitoring.

[0029] Furthermore, the frequency scanning configuration includes a frequency scanning range, a frequency scanning period, an interference threshold, etc., and the interference information includes interference start / end frequency points and interference degree; the anti-interference frequency band configuration list uses bandwidth and uplink starting frequency points as index keywords, and each keyword corresponds to a group of carrier configurations available for user access, and the carrier configuration includes bandwidth, frequency point, and SSB; the device frequency band parameters include basic carrier configuration and device PCI coefficient, number of user accesses, interference frequency band, etc., wherein the PCI coefficient serves as the device identification code, and each device has a unique identification code.

[0030] Further, in S322 and S332, each device parses the device PCI coefficient parameter in the MULTICAST_DEVICE_INFO message, uses the coefficient as the device identification code, and saves the parameters of each device in the device information management table. Each PCI device corresponds to a survival status detection timer. If the parameters corresponding to the PCI already exist in the device information management table, the parameters are updated and the survival status detection timer corresponding to the PCI device is restarted. If not, the parameters corresponding to the PCI are added and the survival status detection timer corresponding to the PCI device is started. Within the time period set by the survival status detection timer, if the MULTICAST_DEVICE_INFO type message of the PCI device is not received again, the parameters of the device are deleted from the device information management table. The time period set by the survival status detection timer needs to be greater than the time period of the multicast MULTICAST_DEVICE_INFO type message.

[0031] Further, in the S323, each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and judges whether it becomes a decision-making device. If it becomes a decision-making device, it goes to S324; if it is not a decision-making device, it goes to S325; in the S333, each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and judges whether it becomes a decision-making device. If it becomes a decision-making device, it goes to S334; if it is not a decision-making device, it goes to S335; the time period of PCI parameter detection needs to be greater than the time period of multicast MULTICAST_DEVICE_INFO type messages.

[0032] Further, in S324 and S334, the decision device periodically generates a frequency band decision message according to the frequency band information and the frequency band decision condition in the device information management table, and the frequency band decision condition includes:

[0033] The device needs to avoid its own interfering frequency band;

[0034] There is no overlap in the frequency bands between devices in the multicast group;

[0035] Frequency bands are allocated from largest to smallest available bandwidth.

[0036] Further, in S324 and S334, the decision device checks the initial carrier configuration data. If the initial carrier configuration data satisfies frequency band decision conditions one and two, the initial carrier configuration data is not reconfigured; if not, a group of configurations that meet all conditions are selected from the frequency band configuration list, and the decision result is multicast to the multicast address in the format of "PCI-configuration index keyword" with the message type of MULTICAST_SOLUTION_INFO.

[0037] The principles and advantages of the present invention are:

[0038] The baseband unit BBU sends carrier parameter configuration and carrier establishment instructions to the wireless unit RU. After the RU completes the carrier establishment, it can start the anti-interference or frequency band collaborative management function according to user needs. The anti-interference function can analyze the spectrum data through the periodic frequency scanning results to summarize the frequency band interference information of the uplink and downlink signals, and decide on the anti-interference frequency band configuration to avoid the interference frequency band for carrier reconfiguration to achieve the purpose of anti-interference; the frequency band collaborative management function can exchange frequency band configuration and interference information between different base stations, and a unified decision-making device can allocate appropriate frequency bands to each device in the network to avoid frequency band overlap between base stations. At the same time, it can combine the interference information of the anti-interference function to avoid interference.

[0039] Compared with traditional anti-interference solutions, the present invention has the advantages of fast response, low cost and high scalability, and can effectively improve the communication quality and stability of base stations in complex wireless communication environments; in an environment where multiple base stations are densely deployed, the overlapping of frequency band configurations may introduce mutual interference between base stations. The present invention is based on multicast message interaction to achieve coordinated allocation of frequency band resources between base stations; the anti-interference software process and collaborative frequency band management process in the present invention can be enabled independently or synchronously according to different business needs. The process has high compatibility and is suitable for multiple working frequency bands. It is not only suitable for existing 4G and 5G base station networks, but can also be expanded to higher-level wireless communication network equipment in the future.

[0040] On the other hand, the present invention provides a 5G base station anti-interference control and multi-station coordinated frequency band allocation system, comprising:

[0041] The BBU board-level management module is used to interact with the RU board-level management module and the protocol stack module, comprehensively manage the carrier configuration parameters of the base station, start and stop the anti-interference module according to the parameter configuration and the RU's load status, and adjust the protocol stack and RU's carrier configuration based on interference information and frequency band decisions;

[0042] The anti-interference module is used to initiate a frequency scanning request, receive and analyze the spectrum information data from the spectrum scanning module, the spectrum information data includes signal strength, interference frequency, interference intensity, and the impact of interference on signal quality, etc., classify and analyze the interference, evaluate the severity of the interference, and decide on the anti-interference frequency band information to avoid interference according to the severity of the interference and report it to the BBU board-level management module;

[0043] The collaborative frequency band management module is used for dynamic frequency band adjustment between base stations. Through the collaborative communication protocol between base stations, the frequency band allocation of multiple base stations can be adjusted in real time;

[0044] RU board-level management module, used to interact with BBU_OAM messages, send sweep instructions to the sweep module, obtain sweep results and report to the anti-interference module, and complete the establishment and reconfiguration of carriers according to the decision information of BBU_OAM;

[0045] The spectrum scanning module is used to perform real-time spectrum scanning according to the frequency scanning configuration and report the collected wireless signal spectrum information to RU_OAM;

[0046] The protocol stack module is used to manage and process data communication between the base station and the user equipment (UE), and is responsible for the interaction with the core network, including the carrier configuration sharing submodule, the carrier reconfiguration submodule, the cell broadcast management submodule, the user access query submodule, and the control enable submodule, among which:

[0047] The carrier configuration sharing submodule is used to save the carrier configuration data of each station in the multicast group;

[0048] The carrier reconfiguration submodule is used to schedule the base station to perform carrier reconfiguration according to the decision result and the available frequency band configuration list;

[0049] The cell broadcast management submodule is used to enable or disable the cell broadcast function;

[0050] The user access query submodule is used to query the user's access status and provide an operation window for periodic monitoring;

[0051] The control enable submodule is used to configure the enable data of the anti-interference control signal and the cooperative control signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A flow chart of the anti-interference control and multi-station collaborative frequency band allocation method for 5G base stations;

[0053] Figure 2 is a flow chart of the anti-interference method;

[0054] Figure 3 A flowchart of a method for allocating frequency bands for multi-station coordination;

[0055] Figure 4 This is a structural diagram of the anti-interference control and multi-station collaborative frequency band allocation system for 5G base stations. DETAILED DESCRIPTION

[0056] The following is further described in detail through specific implementation methods:

[0057] Embodiment 1

[0058] This embodiment provides a 5G base station anti-interference control and multi-station coordinated frequency band allocation method, such as Figure 1 As shown, the following steps are included:

[0059] S01, the base station equipment is initialized and a carrier is established;

[0060] When the base station is powered on, each module is initialized according to the historical configuration, including database configuration loading, frequency band configuration list loading, module UDP initialization, etc.

[0061] After RU_OAM is initialized, it reports the initialization completion status to BBU_OAM. At this time, BBU_OAM requests the protocol stack to obtain the carrier parameter configuration. BBU_OAM sends the carrier parameters (including bandwidth, frequency, subcarrier spacing, power level, etc.) and the carrier establishment instruction to RU_OAM. After RU_OAM completes the carrier establishment, it responds to BBU_OAM with the completion status to complete the carrier establishment. BBU_OAM manages the initial carrier configuration data of the base station according to the response information of the base station.

[0062] S02. Acquire configuration data of anti-interference control signals and cooperative control signals;

[0063] BBU_OAM reads the configuration data of the anti-interference control signal and the cooperative control signal from the protocol stack. The configuration data can be set by the device administrator, including the enable state and the disable state.

[0064] S03. BBU_OAM selects a corresponding carrier control method according to the read configuration data:

[0065] When the anti-interference control signal and the cooperative control signal are both in the disabled state, the carrier is not reconfigured.

[0066] When the anti-interference control signal is in the enabled state and the cooperative control signal is in the disabled state, the carrier is reconfigured according to the anti-interference method, such as Figure 2 As shown, the following steps are included:

[0067] S311, start the anti-interference module and disable the cell broadcast of the protocol stack;

[0068] Disabling cell broadcasting before the anti-interference method is executed can prevent users from accessing wireless signals that are affected by interference and affect signal quality.

[0069] S312, the anti-interference module obtains initial carrier information and frequency scanning configuration from the board-level management module and performs spectrum scanning;

[0070] After the carrier is established, the anti-interference module is started by BBU_OAM. BBU_OAM interacts with the anti-interference module using API, and notifies the anti-interference module of the carrier configuration used by the base station and the frequency sweep configuration (frequency sweep range, frequency sweep period, interference threshold, etc.) set by the equipment administrator through the interface.

[0071] The anti-interference module initiates a frequency sweep request according to the configured frequency sweep period, sends a frequency sweep instruction to RU_OAM through BBU_OAM, and the spectrum scanning module performs targeted spectrum scanning according to the frequency sweep configuration.

[0072] S313, the spectrum scanning module responds to the spectrum data message to BBU_OAM through RU_OAM, and BBU_OAM notifies the anti-interference module of the received spectrum data through the interface;

[0073] The anti-interference module analyzes the spectrum data and summarizes the frequency band interference information of the uplink and downlink signals, obtains the interference information and anti-interference decision configuration, and notifies BBU_OAM through the callback function. The interference information includes the interference start / end frequency, interference degree, etc. The anti-interference decision configuration uses bandwidth and uplink start frequency as index keywords. Each keyword corresponds to a group of carrier configurations that can be accessed by users. The carrier configuration includes bandwidth, frequency, and SSB, which is obtained by removing the interference frequency band from the frequency band configuration list.

[0074] After receiving the interference information and anti-interference decision configuration, BBU_OAM first determines whether the base station is affected by the interference from the interference information. If the result shows that the base station is not affected by the interference or the interference is less affected, the broadcast can be directly enabled to allow user access. If it is determined that the base station is greatly affected by the interference, a corresponding decision result is generated, and the anti-interference frequency band carrier configuration in the decision result is sent to the protocol stack and RU_OAM at the same time. The two modules perform reconfiguration actions respectively, and notify BBU_OAM after the reconfiguration is completed, and BBU_OAM enables cell broadcast for user access.

[0075] S314. When no user accesses, repeat steps S311 to S313 to perform periodic monitoring, which can effectively avoid affecting the services of the connected users.

[0076] When the anti-interference control signal is in the disabled state and the cooperative control signal is in the enabled state, the carrier is reconfigured according to the cooperative control method, such as Figure 3 As shown, the following steps are included:

[0077] S321, start the collaborative control module, complete the multicast initialization, and start the cell broadcast disabling;

[0078] When collaborative band management is enabled, the BBU_OAM starts the collaborative band management module, first loading the band configuration list and the initial band parameters of the device. The band configuration list uses bandwidth and uplink start frequency as index keywords, and each keyword corresponds to a group of carrier configurations (bandwidth, frequency, SSB, etc.) that can be accessed by users. The initial band parameters of the device include basic carrier configuration and device PCI coefficient, number of user access, interference band (if there is interference, fill in the start and end frequencies of interference, if there is no interference or the anti-interference function is not enabled, the default is 0), etc. The PCI coefficient is used as the device identification code, and each device has a unique identification code. According to user needs, the devices in the network configure the same multicast address in the multicast IP address space (224.0.0.0 to 239.255.225.255), create a multicast socket, bind to the multicast address and port, send a request to join the multicast group to the network, and listen to the specified multicast address and port.

[0079] Enabling cell broadcast disable can prevent users from accessing wireless signals that are affected by interference and affect signal quality.

[0080] S322. After the carrier is successfully established, the collaborative control module periodically queries the device frequency band parameters and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO;

[0081] The device frequency band parameters include basic carrier configuration, device PCI coefficient, number of user accesses, interference frequency band, etc., which reflect the frequency band related information of the device. The PCI coefficient is used as the identification code of the device. Each device is unique and does not repeat with other devices.

[0082] Each device in the multicast group is both a sender and a receiver. After receiving the frequency band parameter message of the devices in the multicast group, including itself, it parses the PCI coefficient parameter in the message, uses the coefficient as the device identification code, and saves the parameters of each device in the device information management table. The device information management table contains the frequency band parameter information of all other sites.

[0083] In the device information management table, each PCI device corresponds to a PCI coefficient and a survival status detection timer. If the management table already has the corresponding parameters of the PCI, the parameters are updated and the survival status detection timer corresponding to the PCI device is restarted; if not, the parameters are added and the survival status detection timer corresponding to the PCI device is started. If the MULTICAST_DEVICE_INFO type message of the PCI device is not received again within the time period set by the timer, the parameters of the device are deleted from the "Device Information Management Table" and no longer maintained. The time period set by the timer needs to be greater than the multicast MULTICAST_DEVICE_INFO type message time period to ensure that the device can receive a complete cycle of multicast messages.

[0084] S323, determining a decision-making device in the multicast group;

[0085] Each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and judges whether it becomes a decision-making device. If it becomes a decision-making device, it goes to S324; if it is not a decision-making device, it goes to S325; the time period of PCI parameter detection needs to be greater than the time period of multicast MULTICAST_DEVICE_INFO type messages to ensure that the device can receive a complete cycle of multicast messages.

[0086] S324. The decision-making device periodically checks the frequency band information in the device management information table and complies with the following checking conditions:

[0087] 1) The device needs to avoid its own interfering frequency band;

[0088] 2) There is no overlap in the frequency bands between the devices in the multicast group;

[0089] 3) Allocate frequency bands according to available bandwidth from largest to smallest.

[0090] If the initial carrier configuration data meets conditions 1 and 2, it means that the existing carrier configuration already meets the requirements of multi-station collaborative allocation, and the initial carrier configuration data will not be reconfigured; if conditions 1 and 2 cannot be met at the same time, it is necessary to adjust the existing carrier configuration, select a set of configurations that meet all conditions from the anti-interference frequency band configuration list, and multicast the decision result to the multicast address in the format of "PCI-configuration index keyword" with the message type of MULTICAST_SOLUTION_INFO.

[0091] S325. Each station performs carrier reconfiguration according to the frequency band decision information; after the carrier reconfiguration is completed, the cell broadcast is started for user access.

[0092] S326. When no user accesses, repeat steps S321 to S325 to perform periodic monitoring, which can effectively avoid affecting the services of the connected users.

[0093] When the anti-interference control signal and the cooperative control signal are both in the enabled state, the carrier is reconfigured according to the anti-interference and cooperative joint control method, including the following steps:

[0094] S331, start the collaborative control module to complete the multicast initialization; start the anti-interference module, obtain the initial carrier information and frequency scanning configuration from the board-level management module, and perform spectrum scanning; start the cell broadcast disabling.

[0095] S332, the collaborative control module periodically queries the device frequency band parameters, generates a frequency band configuration list, and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO; each device in the multicast group generates a device management information table containing all other frequency band parameters according to the content of the received multicast message, the specific process is the same as S322, and obtains the interference frequency band information from the anti-interference module;

[0096] S333, determining a decision-making device in the multicast group;

[0097] Each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and judges whether it becomes a decision-making device. If it becomes a decision-making device, it goes to S334; if it is not a decision-making device, it goes to S335; the time period of PCI parameter detection needs to be greater than the time period of multicast MULTICAST_DEVICE_INFO type messages to ensure that the device can receive a complete cycle of multicast messages.

[0098] S334. The decision-making device generates a frequency band decision result according to the frequency band configuration list and the interference information, and multicasts the frequency band decision result.

[0099] For example, the frequency band configuration list contains 5 non-overlapping available frequency band configurations from 1 to 5, and the order of bandwidth size is 1, 4, 2, 5, and 3. In the multicast group, the carrier of device A and device B has been established. Device A works in frequency band 1, and device B works in the interfered frequency band 2. Through the step S333, based on the timing, the PCI parameters in the device information management table are judged, and device A becomes the decision-making device in the multicast group. According to the known parameters in the device information management table, device A can identify that the working frequency band of device B is interfered. Therefore, device A generates a frequency band decision result and reconfigures the carrier of device B. At this time, device A checks the frequency band configuration list. According to the logic described in S324, it first excludes frequency bands 1 and 2 in the frequency band configuration list, compares the three available frequency bands 3, 4, and 5, and selects frequency band 4 with the largest bandwidth as the frequency band decision result of device B, and multicasts the frequency band decision result.

[0100] S335. Each station performs carrier reconfiguration according to the frequency band decision result; after the carrier reconfiguration is completed, the cell broadcast is started for user access.

[0101] As described in the previous example, each station receives multicast information to obtain the frequency band decision result, among which device B performs carrier reconfiguration according to the frequency band decision result. After the carrier reconfiguration is completed, device A works in frequency band 1, device B works in frequency band 4, each station enables cell broadcast, and users can access normally.

[0102] S336: When no user accesses, repeat steps S331 to S335 to perform periodic monitoring.

[0103] Embodiment 2

[0104] This embodiment provides a 5G base station anti-interference control and multi-station coordinated frequency band allocation system, such as Figure 4 As shown, including:

[0105] BBU board-level management (OAM) module, used for message interaction with RU board-level management module and protocol stack module, comprehensive management of base station carrier configuration parameters, start and stop anti-interference module according to parameter configuration and RU loading status, and adjust protocol stack and RU carrier configuration according to interference information and frequency band decision;

[0106] The anti-interference module is used to initiate a frequency scanning request, receive and analyze the spectrum information data from the spectrum scanning module, the spectrum information data includes signal strength, interference frequency, interference intensity, and the impact of interference on signal quality, etc., classify and analyze the interference, evaluate the severity of the interference, and decide on the anti-interference frequency band information to avoid interference according to the severity of the interference and report it to the BBU board-level management module;

[0107] The collaborative frequency band management module is used for dynamic frequency band adjustment between base stations. Through the collaborative communication protocol between base stations, the frequency band allocation of multiple base stations can be adjusted in real time;

[0108] RU board-level management (OAM) module, used to interact with BBU_OAM messages, send sweep instructions to the sweep module, obtain sweep results and report to the anti-interference module, and complete the establishment and reconfiguration of carriers according to the decision information of BBU OAM;

[0109] The spectrum scanning module is used to perform real-time spectrum scanning according to the frequency scanning configuration and report the collected wireless signal spectrum information to RU_OAM;

[0110] The protocol stack module is used to manage and process data communication between the base station and the user equipment (UE), and is responsible for the interaction with the core network, including the carrier configuration sharing submodule, the carrier reconfiguration submodule, the cell broadcast management submodule, the user access query submodule, and the control enable submodule, among which:

[0111] The carrier configuration sharing submodule is used to save the carrier configuration data of each station in the multicast group;

[0112] The carrier reconfiguration submodule is used to schedule the base station to perform carrier reconfiguration according to the decision result and the available frequency band configuration list;

[0113] The cell broadcast management submodule is used to enable or disable the cell broadcast function;

[0114] The user access query submodule is used to query the user's access status and provide an operation window for periodic monitoring;

[0115] The control enable submodule is used to configure the enable data of the anti-interference control signal and the cooperative control signal.

[0116] The specific working process of each module is as described in Example 1.

[0117] The above are only embodiments of the present invention. The invention is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

The anti-interference control and multi-station cooperative frequency band allocation method of 1.5G base station is characterized by: The following steps are involved: S01, the base station equipment is initialized to establish a carrier, and the board-level management module obtains initial carrier configuration data; S02. Acquire configuration data of anti-interference control signals and cooperative control signals; S03. When the anti-interference control signal and the collaborative control signal are both in the disabled state, the carrier is not reconfigured; when the anti-interference control signal is in the enabled state and the collaborative control signal is in the disabled state, the carrier is reconfigured according to the anti-interference method; when the anti-interference control signal is in the disabled state and the collaborative control signal is in the enabled state, the carrier is reconfigured according to the collaborative control method; when the anti-interference control signal and the collaborative control signal are both in the enabled state, the carrier is reconfigured according to the anti-interference and collaborative joint control method.

2. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 1, characterized in that: The anti-interference method comprises the following steps: S311, start the anti-interference module and start disabling cell broadcast; S312, the anti-interference module obtains initial carrier information and frequency scanning configuration from the board-level management module and performs spectrum scanning; S313, the anti-interference module acquires and analyzes the spectrum data, obtains the interference information and the anti-interference decision configuration, and notifies the board-level management module, which analyzes the interference information and performs carrier reconfiguration according to the anti-interference decision configuration; after the carrier is reconfigured, the cell broadcast is started for user access; S314: When no user accesses, repeat steps S311 to S313 to perform periodic monitoring.

3. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 2, characterized in that: The collaborative control method comprises the following steps: S321, start the collaborative control module, complete the multicast initialization; start the cell broadcast disabling; S322, the collaborative control module periodically queries the device frequency band parameters, generates a frequency band configuration list, and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO; each device in the multicast group generates a device management information table containing the frequency band parameters of all other sites according to the content of the received multicast message; S323, determining a decision-making device in the multicast group; S324, the decision-making device generates a frequency band decision result according to the frequency band information in the device management information table, and multicasts the frequency band decision result; S325, each station performs carrier reconfiguration according to the frequency band decision result; after the carrier reconfiguration is completed, the cell broadcast is started for user access; S326: When no user accesses, repeat steps S321 to S325 to perform periodic monitoring.

4. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 3, characterized in that: The anti-interference and coordinated joint control method comprises the following steps: S331, start the collaborative control module to complete the multicast initialization; start the anti-interference module, obtain the initial carrier information and frequency scanning configuration from the board-level management module, and perform spectrum scanning; start the cell broadcast disabling; S332, the collaborative control module periodically queries the device frequency band parameters, generates a frequency band configuration list, and multicasts the device frequency band parameters to the multicast address with the message type of MULTICAST_DEVICE_INFO; each device in the multicast group generates a device management information table containing the frequency band parameters of all other sites according to the content of the received multicast message; the anti-interference module obtains and analyzes the spectrum data to obtain interference information; S333, determining a decision-making device in the multicast group; S334, the decision-making device generates a frequency band decision result according to the frequency band configuration list and the interference information, and multicasts the frequency band decision result; S335, each station performs carrier reconfiguration according to the frequency band decision result; after the carrier reconfiguration is completed, the cell broadcast is started for user access; S336: When no user accesses, repeat steps S331 to S335 to perform periodic monitoring.

5. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 4, characterized in that: The frequency scanning configuration includes the frequency scanning range, frequency scanning period, interference threshold, etc., and the interference information includes the interference start / end frequency and interference degree; the anti-interference frequency band configuration list uses bandwidth and uplink starting frequency as index keywords, each keyword corresponds to a group of carrier configurations for user access, and the carrier configuration includes bandwidth, frequency, SSB, etc.; the device frequency band parameters include basic carrier configuration and device PCI coefficient, number of user access, interference frequency band, etc., among which the PCI coefficient is used as the device identification code, and each device has a unique identification code.

6. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 5, characterized in that: In the S322 and S332, each device parses the device PCI coefficient parameter in the MULTICAST_DEVICE_INFO message, uses the coefficient as the device identification code, and saves the parameters of each device into the device information management table. Each PCI device corresponds to a survival status detection timer. If the parameters corresponding to the PCI already exist in the device information management table, the parameters are updated and the survival status detection timer corresponding to the PCI device is restarted. If not, the parameters corresponding to the PCI are added and the survival status detection timer corresponding to the PCI device is started. If the MULTICAST_DEVICE_INFO type message of the PCI device is not received again within the time period set by the survival status detection timer, the parameters of the device are deleted from the device information management table. The time period set by the survival status detection timer needs to be greater than the time period of the multicast MULTICAST_DEVICE_INFO type message.

7. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 6, characterized in that: In the S323, each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and determines whether it is a decision-making device. If it is a decision-making device, it goes to S324, and if it is not a decision-making device, it goes to S325; In the S333, each device periodically detects and judges the PCI parameters in the device information management table, comprehensively considers all device information, takes the device with the smallest PCI coefficient as the decision-making device, and determines whether it is a decision-making device. If it is a decision-making device, it goes to S334, and if it is not a decision-making device, it goes to S335; The time period of PCI parameter detection needs to be greater than the time period of multicast MULTICAST_DEVICE_INFO type messages.

8. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 7, characterized in that: In S324 and S334, the decision device generates a frequency band decision message according to the frequency band information and the frequency band decision condition in the device information management table at a fixed time, and the frequency band decision condition includes: The device needs to avoid its own interfering frequency band; There is no overlap in the frequency bands between devices in the multicast group; Frequency bands are allocated from largest to smallest available bandwidth.

9. The method for anti-interference control and multi-station coordinated frequency band allocation of a 5G base station according to claim 8, characterized in that: In S324 and S334, the decision device checks the initial carrier configuration data. If the initial carrier configuration data satisfies the frequency band decision conditions one and two, the initial carrier configuration data is not changed; if not, a group of configurations that meet all conditions are selected from the frequency band configuration list, and the decision result is multicast to the multicast address in the format of "PCI-configuration index keyword" with the message type of MULTICAST_SOLUTION_INFO.

10. A 5G base station anti-interference control and multi-station collaborative frequency band allocation system, characterized in that: include: The BBU board-level management module is used to interact with the RU board-level management module and the protocol stack module, comprehensively manage the carrier configuration parameters of the base station, start and stop the anti-interference module according to the parameter configuration and the RU's load status, and adjust the protocol stack and RU's carrier configuration based on interference information and frequency band decisions; The anti-interference module is used to initiate a frequency scanning request, receive and analyze the spectrum information data from the spectrum scanning module, the spectrum information data includes signal strength, interference frequency, interference intensity, and the impact of interference on signal quality, etc., classify and analyze the interference, evaluate the severity of the interference, and decide on the anti-interference frequency band information to avoid interference according to the severity of the interference and report it to the BBU board-level management module; The collaborative frequency band management module is used for dynamic frequency band adjustment between base stations. Through the collaborative communication protocol between base stations, the frequency band allocation of multiple base stations can be adjusted in real time. RU board-level management module, used to interact with BBU_OAM messages, send sweep instructions to the sweep module, obtain sweep results and report to the anti-interference module, and complete the establishment and reconfiguration of carriers according to the decision information of BBU_OAM; The spectrum scanning module is used to perform real-time spectrum scanning according to the frequency scanning configuration and report the collected wireless signal spectrum information to RU_OAM; The protocol stack module is used to manage and process data communication between the base station and the user equipment, and is responsible for the interaction with the core network, including the carrier configuration sharing submodule, the carrier reconfiguration submodule, the cell broadcast management submodule, the user access query submodule, and the control enable submodule, among which: The carrier configuration sharing submodule is used to save the carrier configuration data of each station in the multicast group; The carrier reconfiguration submodule is used to schedule the base station to perform carrier reconfiguration according to the decision result and the available frequency band configuration list; The cell broadcast management submodule is used to enable or disable the cell broadcast function; The user access query submodule is used to query the user's access status and provide an operation window for periodic monitoring; The control enable submodule is used to configure the enable data of the anti-interference control signal and the cooperative control signal.

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