Base station positioning function method in ad hoc network scene
Through the positioning method combined with the base station and the IAB-MT module, the problem of base station positioning in the self-organized network scenario is solved, the accurate acquisition of base station location and network topology are achieved, and network management and user experience are improved.
Patent Information
- Application Number
- CN202510672010.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-07-18
AI Technical Summary
In the scenario of self-organizing networking, existing TOA, TDOA and RSSI technologies are difficult to effectively determine the location of the base station, especially in sparse areas or tree-shaped chain structures, resulting in the problem of untimely reporting of positioning information or the inability to locate.
By combining the base station equipment with the IAB-MT enhancement module, the base station sends a configuration message to instruct the IAB-MT module to perform periodic positioning, and reports the positioning results to the core network step by step. The core network decodes the positioning information to draw the network topology structure.
It realizes effective acquisition and reporting of base station location information, optimizes network management, avoids overlapping coverage and interference, improves network performance, improves user experience, and improves dynamic topology structure.
Smart Images
Figure CN120343707A_ABST
Abstract
Description
Technical Field
[0001] The present invention mainly relates to the technical field of mobile communication, and specifically provides a method for the base station positioning function in an ad hoc network scenario. Background Art
[0002] Currently, the existing base station positioning methods are implemented through TOA and TDOA technologies. The former calculates the position by measuring the time difference of signals arriving at different base stations from a mobile device. This method requires at least three base stations to determine a position. For sparsely covered and some open areas in rural areas, the base station coverage is relatively single, and problems such as untimely reporting of positioning information or inability to position may occur. For the latter, it usually locates by using the time difference of signals arriving at two or more base stations, and there are also limitations similar to those of the TOA technology.
[0003] For the RSSI technology, it usually estimates the distance from the base station by the change of signal strength and then calculates the position. However, this method is usually used in indoor environments and is greatly affected by multipath effects and the environment. In the ad hoc network scenario, usually, multiple base station devices are in a tree-like and chain-like structure. Due to the IAB-MT module, as Figure 1 shown, there will be some overlapping coverage areas between each other. However, it may be difficult to have three or more base stations covering simultaneously in the whole cell to perform positioning through TOA or TDOA technologies. And the RSSI technology also has many limitations. Therefore, it is necessary to propose a base station positioning technology in the ad hoc network scenario, that is, by combining the transmission of mobile base station devices with the positioning of IAB-MT enhanced module devices. The base station sends a configuration message for positioning to the IAB-MT enhanced module connected at the next level, instructs the IAB-MT module to perform periodic positioning, and reports the positioning result to the base station. The base station gradually transmits the message containing the positioning result as ordinary data through the Uu interface between the IAB-MT and the upper-level base station to the upper-level base station. In this way, it is transmitted level by level until it reaches the core network. The core network unpacks level by level and then sends the IAB-MT positioning messages of each level of base stations to the location server, realizing the positioning of each base station. At the same time, since the core network obtains the transmission path of the IAB-MT module, the dynamic network topology structure is further improved. Summary of the Invention
[0004] Based on this, the purpose of the present invention is to provide a method for the base station positioning function in an ad hoc network scenario to solve the existing technical problems of base station positioning based on the ad hoc network structure.
[0005] To achieve the above object, the present invention provides the following technical solutions: A method for the base station positioning function in an ad hoc network scenario, including base station nodes where n base stations with positioning-capable IAB-MT enhanced modules communicate and form a network, and including the following steps: Any base station is the first base station node. The first base station node communicates with the IAB-MT module of the adjacent second base station node through the Uu interface and sends a request instruction. After receiving the instruction, the second base station node performs periodic positioning and feeds back the positioning result to the first base station node. The positioning feedback process is the reporting of uplink scheduling data or MAC CE information. After receiving the positioning data of the second base station node, the first base station node sequentially transfers it through multiple levels of the backhaul link to the base station node directly connected to the core network by optical fiber, and at the same time collects the IAB-MT positioning content of all base station nodes during the transfer process. The core network decodes the position information of the IAB-MT positioning content in sequence, sends it to the location server, and the transmission path of the IAB-MAT module, draws the network topology structure of the base station node, stores it in the network management center, and the network management center draws the coverage range of the base station node and optimizes the network configuration.
[0006] Preferably, the instruction information includes an RRCReconfiguration message with a positioning field and a positioning period; the positioning period includes the longitude and latitude of the IAB-MT module, and the positioning period is the reporting period of the IAB-MT module's positioning information.
[0007] Preferably, the default positioning period is 10 ms, and the field is 3 bits.
[0008] In summary, the present invention mainly has the following beneficial effects: This patent combines the backhaul of mobile base station equipment with the positioning of IAB-MT enhanced module equipment, which can effectively solve the problems of obtaining and reporting the position information of mobile base station equipment in the self-organizing network scenario. 1) It can help the network center manage and schedule base stations more conveniently. 2) It can determine the coverage of each level of base stations, achieving low cost and high coverage. 3) It can avoid overlapping coverage of base station equipment and cell edge interference, improve the performance of network equipment, and further enhance the user network experience. 4) It can further improve the network dynamic topology structure and provide a basis for subsequent network optimization. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0010] Figure 1Structural diagram of the multi-level GNB in the ad hoc network of the present invention; Figure 2 Message interaction diagram between the base station node and the IAB-MT module of the present invention. Specific implementation manner
[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and cannot be understood as a limitation to the present invention.
[0012] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.
[0013] Embodiment A method for base station positioning in an ad hoc network scenario. By combining the base station device with the IAB-MT enhancement module, the base station issues a configuration message for positioning to each next-level connected IAB-MT enhancement module, instructing the IAB-MT module to perform periodic positioning. The IAB-MT performs periodic positioning according to the configuration issued by the base station and reports the positioning result to the base station. The base station transfers the information containing the positioning message as application data to the upper-level base station. In this way, after information is transferred through multiple levels of base stations, the core network finally obtains the positioning message data of multiple levels of base stations on the entire path, and decodes this data level by level, so as to obtain the positioning content of the IAB-MT enhancement module, and sends this content to the location server for management. At the same time, the core network also obtains the enhanced transmission path of each IAB-MT module, thereby determining the paths and positions of each base station device. The specific method is as follows: Step 1: Assume that the network is an ad hoc network, with a total of n cascaded base stations, and each base station has an IAB-MT enhancement module, and the IAB-MT module has a positioning function; Step 2: For the base station node n-1, after the IAB-MT module of the base station node n completes access, the base station node n-1 interacts with the IAB-MT module of the base station node n through the Uu interface, and issues the positioning field LocatedInd and the positioning period LocatedPeriod in the RRCReconfiguration message to the IAB-MT module. Among them, LocatedInd contains the longitude and latitude information of the IAB-MT module, and the positioning period is to indicate how often the IAB-MT module reports positioning information, that is, to update the positioning information; Step 3: After the IAB-MT of base station node n receives the RRCReconfiguration with the positioning field LocatedInd and the positioning period LocatedPeriod, it performs periodic positioning and reports the positioning result to base station node n-1 through uplink scheduling data multiplexing or MAC CE message; Step 4: After base station node n-1 obtains the positioning data of base station node n, it transmits it to base station node n-2 through the backhaul link. In this way, after multiple levels of transmission, when it reaches base station node 1, since base station node 1 is directly connected to the core network through optical fiber, the location and path of base station node 1 are known to the core network; Step 5: After the core network receives the IAB-MT positioning content from base station node n to 2, it decodes them in sequence, sends the location information to the location server for management, and at the same time the core network also obtains the transmission paths of each level of IAB-MT modules, so as to obtain the locations of each level of base stations and the network topology structure of the transmission; Step 6: The network management center can calculate the coverage ranges of each level of base stations based on the reported radio parameters of the base stations, which is convenient for subsequent network optimization to open stations and optimize the network; Step 7: Usually, the positioning period LocatedPeriod can be default set to 10ms, the field is 3bit, and the values {1sym, 2sym, 1slot, 2slots, 1ms, 5ms, 10ms, 100ms} can be adjusted according to the actual positioning accuracy; Embodiment 1 Scenario of 3 GNBs Assume that the network is a self-organizing network, with a total of 3 cascaded base stations, and each base station has an IAB-MT enhancement module: For base station node 2, after the IAB-MT module of base station node 3 completes access, base station node 2 interacts with the IAB-MT module of base station node 3 through the Uu interface, and indicates the metrics to be positioned, such as longitude and latitude, in the RRCReconfiguration message, and then reports them periodically. The period can be 10ms, that is, report once every 10ms, and send them to the IAB-MT module; after base station 2 obtains the positioning data of base station 3, it transmits it to base station node 1 through the backhaul link. In this way, after multiple levels of transmission, when it reaches base station node 1, since base station node 1 is directly connected to the core network through optical fiber, the location and path of base station node 1 are known to the core network; after the core network receives the IAB-MT positioning content of 2 base stations, it decodes them in sequence, so as to obtain the locations and transmission paths of 3 base station devices, and sends them to the location server for management, so as to improve the network topology structure and optimize network devices subsequently; Embodiment 2: For the scenario of n GNBs Assume that the network is an ad hoc network, with a total of n base stations cascaded, and each base station has an IAB-MT enhancement module: For base station node n-1, after the IAB-MT module of base station node n completes access, base station node n-1 interacts with the IAB-MT module of base station node n through the Uu interface, and indicates the metrics to be located, such as longitude and latitude, in the RRCReconfiguration message, and then reports periodically. The period can be 10 ms, that is, report once every 10 ms, and send it to the IAB-MT module; after base station n-1 obtains the positioning data of base station n, it transmits it to base station node 1 through the backhaul link. In this way, after multiple levels of transmission, when it reaches base station node 1, since base station node 1 is directly connected to the core network through optical fiber, the location and path of base station node 1 are known to the core network; after the core network receives the IAB-MT positioning content of n-1 base stations, it decodes them in sequence to obtain the locations and transmission paths of n base station devices, and sends them to the location server for management, so as to improve the network topology structure and optimize network devices subsequently; Interpret the common language in the field of communication technology as follows: IAB-MT (Integrated Access and Backhaul - Mobile Termination, integrated access and backhaul mobile terminal) LBS (Location-Based Service, base station positioning technology) TOA (Time of Arrival, time of arrival) TDOA (Time Difference of Arrival, time difference of arrival) RSSI (Received Signal Strength Indicator, signal strength measurement) AOA (Angle of Arrival, angle of arrival measurement) A-GPS (Assitant Global Position System, assisted GPS) PRB (Physical Resource Block, physical resource block) This application embodiment also provides a network device, which includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in any of the above method embodiments.
[0014] An embodiment of the present application provides a computer program product. When the computer program product runs on a mobile terminal, the mobile terminal is enabled to execute the steps in the above-mentioned various method embodiments when executed.
[0015] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above-mentioned embodiment methods of the present application, a computer program can be used to instruct the relevant hardware to complete. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps in the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the photographing device / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disc, etc. In some jurisdictions, according to legislation and patent practice, the computer-readable medium cannot be an electrical carrier signal and a telecommunication signal.
[0016] The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A method for the base station positioning function in an ad hoc network scenario, including base station nodes where n base stations with positioning-enabled IAB-MT enhancement modules communicate with each other to form a network, characterized in that, It includes the following steps: Any base station serves as the first base station node. The first base station node communicates with the IAB-MT module of the adjacent second base station node via the Uu interface and sends a request instruction. After receiving the instruction, the second base station node performs periodic positioning and feeds back the positioning result to the first base station node. The positioning feedback process is the reporting of uplink scheduling data or MAC CE information. After receiving the positioning data of the second base station node, the first base station node sequentially transfers it through multiple levels of the backhaul link to the base station node directly connected to the core network by optical fiber. At the same time, it collects the IAB-MT positioning content of all base station nodes during the transfer process. The core network decodes the location information of the IAB-MT positioning content in sequence, sends it to the location server, and the transmission path of the IAB-MAT module, draws the network topology of the base station nodes, stores it in the network management center. The network management center draws the coverage area of the base station nodes and optimizes the network configuration.
2. The method for the base station positioning function in an ad-hoc network scenario according to claim 1, wherein The instruction information includes an RRCReconfiguration message with a positioning field and a positioning period; the positioning period includes the longitude and latitude of the IAB-MT module, and the positioning period is the reporting period of the IAB-MT module's positioning information.
3. The method for the base station positioning function in an ad hoc network scenario according to claim 2, wherein, The default positioning period is 10 ms, and the field is 3 bits.