Method and system for measuring timing deviation between small base station and macro base station in LTE system

Abstract

A method and system for measuring timing deviation between a small base station and a macro base station in an LTE system, including the small base station performing initial time deviation estimation on the random access sequence transmitted by the MUE, and obtaining the initial time deviation value T1; analyzing the feedback from the macro base station to the MUE MSG2 information to obtain the time offset value T2; calculate the timing measurement deviation between the small base station and the macro base station according to the time offset values ​​T1 and T2. The implementation process of obtaining the initial timing offset value T1 includes that the small base station initiates a timing deviation measurement request to the macro base station, and the macro base station triggers the MUE in the coverage area to initiate random access after receiving it, and notifies the small base station, and the small base station obtains The MUE transmits the random access sequence, and the small base station performs initial time offset estimation on the MUE transmitted random access sequence to obtain the initial time offset value T1; the realization process of obtaining the time offset value T2 includes the timing of the small base station sending MSG2 at the macro base station Intercept at the position and analyze to get TA, which is T2.

Description

technical field [0001] The present invention relates to a broadband wireless communication system, and more specifically, the present invention relates to a method and system for measuring timing deviation between a small base station and a macro base station in an LTE system. Background technique [0002] Mobile communication technology has evolved to 4G, and the transmission rate has been doubled, but it still cannot match the growth rate of user demand. At the same time, the available frequency resources in the 4G era are decreasing, and it is necessary to use high-frequency bands to deploy networks in dense urban areas, but the higher the frequency band, the more macro The weaker the penetration ability of cellular base stations to indoors, and the density of base stations also needs to be greatly increased, the limitations of building new stations in indoor places are getting bigger and bigger. Therefore, operators are in urgent need of a solution that can offload macro...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a method and system for measuring the timing deviation between the small base station and the macro base station in the LTE system, thereby solving the problem of measuring the timing deviation between the small base station and the macro base station

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