CN-122028070-A - GSM-R network optimization method and device

CN122028070ACN 122028070 ACN122028070 ACN 122028070ACN-122028070-A

Abstract

The invention provides a GSM-R network optimization method and device, which comprises the steps of obtaining railway GSM-R frequency band radio signals, positioning information and standing book information, decoding the radio signals to obtain decoded data, calculating Manhattan distance between every two frequency points, combining preset frequency point interference protection distance, constructing a GSM-R network frequency optimization scheme comprising a numerical model and optimization parameters, solving the model to judge whether the optimizable frequency points exist, optimizing the network according to the scheme if the optimizable frequency points exist, evaluating coverage rationality based on the decoded data if the optimality does not exist, and adjusting base station antenna parameters. According to the invention, network optimization is carried out by combining radio signal data with the account and the positioning information, so that the systematicness and scientificity of GSM-R network optimization are improved, meanwhile, the interference risk is reduced, and the efficient and reliable GSM-R network optimization is realized.

Inventors

ZHANG YUZHENG
LI RUNLEI
LI LIANDONG
LIU XIAOLIANG
ZHANG MAOXUAN
QUAN NANNAN
HAN DONGLIANG
XU WEI

Assignees

中国铁道科学研究院集团有限公司
中国铁道科学研究院集团有限公司基础设施检测研究所
北京铁科英迈技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260126

Claims (10)

1. A method for optimizing a GSM-R network, comprising: acquiring railway GSM-R frequency band radio signals, positioning information and standing book information, wherein the standing book information comprises base station information, frequency point configuration information and service range information of GSM-R; Decoding railway GSM-R frequency band radio signals to obtain decoding data, wherein the decoding data comprises cell coding and signal measurement parameters of a plurality of frequency points in the GSM-R; According to the decoding data, the standing book information and the positioning information, calculating the Manhattan distance between every two frequency points in the GSM-R; According to Manhattan distance between every two frequency points in the GSM-R, and combining a preset inter-frequency point interference protection distance, determining a GSM-R network frequency optimization scheme, wherein the GSM-R network frequency optimization scheme comprises a GSM-R network frequency optimization numerical model and a GSM-R network frequency optimization parameter; solving a GSM-R network frequency optimization numerical model, and determining whether an optimizable frequency point exists, wherein: if the optimized frequency point does not exist, determining GSM-R coverage data based on the decoding data; if the optimizable frequency points exist, the GSM-R network is optimized based on the GSM-R network frequency optimization scheme.
2. The method of claim 1, wherein decoding the railway GSM-R band radio signal to obtain decoded data comprises: Carrying out sweep frequency analysis on railway GSM-R frequency band radio signals; and decoding the railway GSM-R frequency band radio signal based on the sweep frequency analysis result to obtain decoded data.
3. The method of claim 1, wherein calculating the manhattan distance between each two frequency points in the GSM-R based on the decoded data, the ledger information, and the positioning information comprises: resampling the decoded data according to the standing book information and the positioning information to obtain a decoded data set; based on the decoded data set, the Manhattan distance between every two frequency points in the GSM-R is calculated.
4. A method according to claim 3, wherein resampling the decoded data based on the ledger information and the positioning information to obtain a decoded data set comprises: Equidistant resampling is carried out on the decoded data by combining with the mileage mark corresponding to the positioning information; adjusting signal receiving levels of different frequency points in the decoded data after equidistant resampling based on frequency configuration information in the ledger information; and dividing the adjusted decoding data according to the service range information in the account information to obtain a decoding data set.
5. The method of claim 1, wherein determining GSM-R coverage data based on the decoded data, and adjusting antenna parameters of the GSM-R base station based on the GSM-R coverage data comprises: Determining the overlapping coverage area range of the GSM-R network by combining the uplink and downlink switching positions of the GSM-R network according to the decoding data and the account information; Identifying abnormal coverage information of the GSM-R network according to the overlapping coverage area range of the GSM-R network, wherein the abnormal coverage information comprises over-coverage information and weak coverage information; and adjusting the antenna parameters of the GSM-R base station according to the coverage abnormality information of the GSM-R network.
6. The method of claim 1, further comprising, after optimizing the GSM-R network based on the GSM-R network frequency optimization scheme: And acquiring the optimized railway GSM-R frequency band radio signal, and evaluating the GSM-R network optimizing effect according to the optimized railway GSM-R frequency band radio signal.
7. A GSM-R network optimization device, comprising: The system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring railway GSM-R frequency band radio signals, positioning information and standing book information, wherein the standing book information comprises base station information, frequency point configuration information and service range information of GSM-R; The decoding module is used for decoding railway GSM-R frequency band radio signals to obtain decoding data, wherein the decoding data comprises cell coding and signal measurement parameters of a plurality of frequency points in the GSM-R; The distance calculation module is used for calculating the Manhattan distance between every two frequency points in the GSM-R according to the decoding data, the standing book information and the positioning information; The optimization scheme determining module is used for determining a GSM-R network frequency optimization scheme according to the Manhattan distance between every two frequency points in the GSM-R and combining with a preset inter-frequency point interference protection distance, wherein the GSM-R network frequency optimization scheme comprises a GSM-R network frequency optimization numerical model and a GSM-R network frequency optimization parameter; solving a GSM-R network frequency optimization numerical model, and determining whether an optimizable frequency point exists, wherein: the antenna parameter adjustment module is used for determining GSM-R coverage data based on the decoding data if the optimizable frequency point does not exist; And the network optimization module is used for optimizing the GSM-R network based on the GSM-R network frequency optimization scheme if the optimizable frequency point exists.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-6 when executing the computer program.
9. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method of any of claims 1-6.
10. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the method of any of claims 1-6.

Description

GSM-R network optimization method and device Technical Field The invention belongs to the technical field of GSM-R wireless communication network optimization, and particularly relates to a GSM-R network optimization method and device. Background With the continuous expansion of railway network, the coverage mileage of GSM-R network is increased, new line is covered continuously by adding base station, and the frequency multiplexing distance is compressed greatly in the areas of hub, cross and line, etc. to cause the problem of in-network co-frequency and adjacent frequency interference to be prominent and seriously affect the communication quality. In the design stage of the GSM-R network, the selection of the base station site and the frequency mainly depends on the simulation of a theoretical propagation model and the construction experience, and the influence of the site complex topography and landform on the wireless signal propagation is difficult to comprehensively consider, so that the actual network coverage effect and the design scheme often have larger deviation, meanwhile, the topography and landform along the railway can naturally change along with time, the continuous introduction of a new line can also change the surrounding wireless propagation environment, the GSM-R network state is in dynamic fluctuation, and the uncertainty of coverage and interference is further aggravated. Currently, the optimization work of the GSM-R network is carried out by relying on the problem points found by dynamic detection and network management fault alarms, and a systematic optimization method and tool support are lacked. The passive and localized adjustment mode is not only difficult to adapt to the operation and maintenance requirements of complex scenes, but also extremely easy to cause secondary risks such as adjacent line interference and the like, and the stability and reliability of railway communication are affected. Disclosure of Invention The embodiment of the invention provides a GSM-R network optimization method, which combines radio signal data with account and positioning information to perform network optimization, improves the systematicness and scientificity of the GSM-R network optimization, reduces interference risks and realizes high-efficiency and reliable GSM-R network optimization, and the GSM-R network optimization method comprises the following steps: acquiring railway GSM-R frequency band radio signals, positioning information and standing book information, wherein the standing book information comprises base station information, frequency point configuration information and service range information of GSM-R; Decoding railway GSM-R frequency band radio signals to obtain decoding data, wherein the decoding data comprises cell coding and signal measurement parameters of a plurality of frequency points in the GSM-R; According to the decoding data, the standing book information and the positioning information, calculating the Manhattan distance between every two frequency points in the GSM-R; According to Manhattan distance between every two frequency points in the GSM-R, and combining a preset inter-frequency point interference protection distance, determining a GSM-R network frequency optimization scheme, wherein the GSM-R network frequency optimization scheme comprises a GSM-R network frequency optimization numerical model and a GSM-R network frequency optimization parameter; solving a GSM-R network frequency optimization numerical model, and determining whether an optimizable frequency point exists, wherein: if the optimized frequency point does not exist, determining GSM-R coverage data based on the decoding data; if the optimizable frequency points exist, the GSM-R network is optimized based on the GSM-R network frequency optimization scheme. The embodiment of the invention provides a GSM-R network optimization device, which combines radio signal data with account and positioning information to perform network optimization, improves the systematicness and scientificity of the GSM-R network optimization, reduces interference risks and realizes efficient and reliable GSM-R network optimization, and the GSM-R network optimization device comprises: The system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring railway GSM-R frequency band radio signals, positioning information and standing book information, wherein the standing book information comprises base station information, frequency point configuration information and service range information of GSM-R; The decoding module is used for decoding railway GSM-R frequency band radio signals to obtain decoding data, wherein the decoding data comprises cell coding and signal measurement parameters of a plurality of frequency points in the GSM-R; The distance calculation module is used for calculating the Manhattan distance between every