Cell reselection method, base station, vehicle-mounted equipment and system

Abstract

The invention discloses a cell reselection method, a base station, vehicle-mounted equipment and a system. The method comprises the following steps of: pre-storing high-speed fixed mobile path-along cell information; broadcasting neighboring cell information in a local cell according to the high-speed fixed mobile path-along cell information; and performing cell reselection according to the neighboring cell information by a terminal. The method can overcome the defects of complex flow of cell reselection and the like in the prior art, and realize simplification of the cell reselection flow and reduction of the measurement number of the neighboring cells.

Description

technical field [0001] The present invention relates to wireless technology in the communication field, in particular to a cell reselection method, base station, vehicle-mounted equipment and system. Background technique [0002] The existing high-speed rail communication is directly covered by the Public Land Mobile Network (PLMN) or covered by repeaters. In order to obtain a large user capacity, the cell radius cannot be too large. Assuming that the train speed is 350km / h and the cell range is 1km, a cell reselection is required in about 10s. In the high-speed rail environment, cell reselection by idle users has the following characteristics: high-speed train movement, frequent cross-region, and high frequency of cell reselection. [0003] In the current LTE system, the cell reselection process is as follows: [0004] (1) User Equipment (UE for short) measures the signal quality of the serving cell and multiple neighboring cells. When the signal quality of the neighborin...

AI Technical Summary

Problems solved by technology

[0012] The first purpose of the present invention is to propose a method for cell reselection to simplify the cell reselection process and reduce the number of UE measurements in view of the defects of the existing cell reselection process such as complex process and large number of measurements

[0013] The second purpose of the present invention is to propose a base station to reduce the number of neighboring cells to be measured in order to solve the defects that the existing cell reselection process is all completed by the UE, and the number of neighboring cells that the UE needs to measure is large and the process is complicated.

[0014] The third purpose of the present invention is to propose a vehicle-mounted terminal to reduce the number of adjacent cells to be measured in view of the defects of the existing cell reselection process, such as complex procedures and the large number of UE measurements.

Images