Access method and system for changing district by user in high speed circumstance

Abstract

The invention discloses a user subdistrict switching access method under the high speed environment. The method includes the following steps: obtaining the received signal code power (RSCP) received by a primary common control physical channel (PCCPCH) of the subdistrict and the adjacent subdistrict, the angle (AOA) between a subdistrict uplink signal channel and an antenna, and the moving direction of user equipment (UE); determining the subdistrict switching access according to the decision mode of the RSCP received by the PCCPCH and the UE moving direction; or determining the subdistrict switching access according to the decision mode of the AOA and the UE moving direction; or determining the subdistrict switching access according to the decision results of the two decision modes. The invention also discloses a user subdistrict access system under the high speed environment. The user call is better realized under the high speed environment by adopting the method and the system.

Description

technical field [0001] The invention relates to a cell-changing access technology for a user, in particular to a cell-changing access method and system for a user in a high-speed environment. Background technique [0002] With the rapid development of maglev railways, high-speed railways and highways, mobile communication in high-speed environments has become a current concern. At present, maglev railways, high-speed railways and highways used in high-speed environments are usually designed as straight lines or curves with small radians. scope. For the design of cell coverage in a high-speed environment, adopting this simple coverage networking method avoids the problems of frequent switching and frequent reselection caused by complex coverage networking methods, which is conducive to later network adjustment and optimization. [0003] In a high-speed environment, users are in a fast-moving state. Taking Shanghai's commercial maglev railway as an example, its top speed ca...

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of the prior art is: due to the limitation of various objective conditions, it is impossible to expand the coverage of the cell without limit

Moreover, with the development of science and technology, higher / ultra-high-speed environments will continue to appear, and the method of expanding the coverage of a cell only relying on existing technologies cannot solve the problem of user calls in a high-speed environment.

Images