Switching judgment method based on channel quality indication (CQI) enhancement

Abstract

The invention relates to the technical field of communication, and discloses a switching judgment method based on channel quality indication (CQI) enhancement, which comprises the following steps that: a source eNB acquires relevant measurement quantity measured and reported by user equipment (UE), switching judgment is carried out according to relevant measurement quantity and a commonly used switching judgment method, a list of communities which meets the switching judgment conditions and the number of times for each community to continuously meet the switching judgment conditions is calculated; and finally, the switching judgment is enhanced, i.e. the CQI of the UE in the original community is divided into N intervals; if the number of times for the community to continuously meet the switching judgment conditions reach the number of times required by the UE in the CQI intervals, switching is executed; otherwise, relevant measurement quantity measured and reported by the UE is continued to obtain, and a next switching process is carried out. According to the switching judgment method based on CQI enhancement, because the number of times for the communities to continuously meet the switching judgment conditions a required to meet the requirements of different CQI intervals so as to enhance the judgment to the signal stability of a target community, so that ping-pong effect which is produced by switching because the signal quality of the target community is measured unstable is reduced.

Description

technical field [0001] The invention relates to handover in the technical field of mobile communication, in particular to a handover judgment method based on CQI enhancement. Background technique [0002] In a wireless mobile communication system, when the signal quality of the serving cell of the user terminal deteriorates, it is usually necessary to handover the UE (user terminal) to an adjacent cell with better signal quality, so as to provide better service for the UE. A handover is triggered after evaluating various conditions, at least one of these conditions can trigger a handover, and this trigger decision is made after a measurement and parameter collection of the current base station and neighboring base stations are completed. The quality of the handover decision method directly affects the performance of the UE after handover. If the handover decision criterion is not selected properly, the call may be switched on both sides for many times at the overlap of the ...

AI Technical Summary

Problems solved by technology

When the channel condition of the target cell is in a state of fast fading or the signal quality of the target cell is unstable, at this time, the handover will cause a ping-pong effect, which seriously affects the quality and performance of the handover

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