Pilot switching method, device, communication system, mobile terminal and storage medium

Abstract

The invention discloses a pilot switching method and device, a communication system, a mobile terminal and a memory medium. The method comprises the steps that a base station obtains identification information of a corresponding first target pilot and the identification information of a corresponding second target pilot, wherein the identification information is detected by a mobile station; obtaining a switching indication message which is sent by the mobile station and carries the identification information of the second target pilot; receiving switching error information which is sent by the mobile station when it is judged that the identification information of the first target pilot is inconsistent with the identification information of the second target pilot, wherein the switching error information carries pilot error deviation; and expanding a current search range of an active set search window of the mobile station according to the pilot error deviation. According to the method, the search range of the active set search window is expanded, so the problem that the mobile station switches from a current pilot to a wrong pilot to result in call drop due to the fact that the search range of the active set search window is too small is solved, wherein the wrong pilot is issued by the base station and has a relatively weak signal.

Description

technical field [0001] The present invention relates to the field of communication technologies, and more specifically, to a pilot switching method, device, communication system, mobile terminal and storage medium. Background technique [0002] The so-called soft handover means that when the mobile station needs to communicate with a new base station, it does not interrupt the connection with the original base station first, but keeps talking with the original base station and the new base station at the same time during the handover process, and establishes stable communication with the new base station. After that, the connection with the original base station was disconnected to ensure the smooth flow of the phone. Its main advantages are: (1) seamless handover, maintaining the continuity of the call; (2) reducing the possibility of call drop; (3) reducing the transmission power of the mobile station in the handover area. CDMA soft handover will bring better voice qualit...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the mobile station will continuously report the frequency measurement message during the call to let the base station switch pilots to maintain good call quality. However, when the search window is small or the radio frequency processing unit is far away, it is likely to Due to the time offset between the base station and the mobile station, the handover command issued by the base station is disordered, causing the mobile station to switch the weak pilot frequency, resulting in the problem of call drop

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