High-speed rail network interference analysis method and device

Abstract

The embodiment of the invention provides a high-speed rail network interference analysis method and device, and the method comprises the steps: acquiring a public network cell within a preset range ofa high-speed railway private network cell, and acquiring the public network basic information of the public network cell and the private network basic information of the private network cell; obtaining the distance between the base station of the public network cell and a high-speed railway line according to the public network basic information and the private network basic information, and a first angle between the a vertical line from the base station of the public network cell to the high-speed railway line and the direction of a main sector of the public network cell, and obtaining the interference value of the public network cell to the private network cell according to an obtained MR measurement report; performing the interference analysis of the high-speed rail network according tothe distance, the first angle, and the interference value. The device is used for performing the above method. The embodiment of the invention, the method integrates the position relation and mutualinterference relation between the public network and the high-speed railway network, and improves the accuracy of the interference analysis of the high-speed rail network.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of mobile communications, and in particular to a method and device for analyzing high-speed rail network interference. Background technique [0002] The mobile communication network is an interference-limited network. The existence of interference will not only increase the bit error rate and affect the user's call quality, but also affect multiple indicators in an all-round way, such as call drop, call establishment, handover, and congestion. Strong interference can even cause communication base stations to be out of service, seriously affecting the normal operation of equipment and user perception. There are many types of interference to the network, including uplink interference, downlink interference, internal interference, and external interference. Among them, internal interference is the main problem of interference in wireless communication networks, and it is also the focus of ...

AI Technical Summary

Problems solved by technology

In special scenarios such as high-speed rail, multiple extension devices are usually installed in the high-speed rail community, and the coverage area is narrow and long, generally reaching about 10 square kilometers. The public network cells in the coverage area inevitably have the same frequency point, the same BSIC, and the same scrambling code. In the case of PCI (Pre-Coding Control Indication, pre-coding control indication), the accuracy of matching between MR data and public network cells cannot be fully ensured, which eventually leads to inaccurate generated MR interference matrix, which affects the analysis of interference problems and the analysis of frequency points, interference Code, PCI and other resource planning

[0005] Secondly, incomplete MR acquisition affects the accuracy of the analysis. In the special scene of high-speed rail, the interference analysis based on MR data is still used at present. Due to the fast speed of the train and the small number of samples collected, public network communities around the high-speed rail often fail to collect MR in the future and are ignored. The generated inter-cell interference relationship is seriously insufficient in integrity, which will inevitably affect the accuracy of the final interference analysis results

[0006] Thirdly, in the application of the interference analysis results to the optimization scheme, the implementation effect continues to decline: for example: the current GSM network, due to the construction needs of LTE, needs to withdraw some frequency points for LTE network use, and at the same time, some low-end frequency points in use In the high-speed rail area and surrounding scenarios, due to the lack of MR reports and inaccurate matching, the interference results between the public and private networks are biased, which in turn affects and The effect of restricting the implementation of the plan

Images