An Adaptive Optimization Method for esrvcc Switching Parameter Setting

Abstract

The invention relates to an adaptive optimization scheme for eSRVCC handover parameter setting, and belongs to the technical field of wireless communication. The method of the present invention includes the following contents: 1. In the handover measurement phase, the trigger condition of measurement event reporting is adaptively adjusted according to the CQI index of the channel, thereby effectively avoiding the ping-pong effect. 2. In the handover judgment stage, the handover judgment conditions are adjusted in real time according to user priority settings, thereby improving the flexibility of eSRVCC handover. Specifically, firstly, the hysteresis value adaptive parameter correction in the handover trigger condition is optimized by measuring the CQI of the channel, and then a priority design method is proposed for the situation where multiple users initiate handover requests at the same time, and finally for the optimal target cell that has been selected The user UE completes the handover from the source cell to the target cell. Compared with the prior art, the method of the present invention can adjust the setting of switching parameters in real time according to the quality of the channel, provides users with a better call experience of seamless switching, and is more suitable for the current network environment.

Description

Technical field: [0001] The invention relates to an adaptive optimization method for eSRVCC handover parameter setting, belonging to the technical field of wireless communication. Background technique: [0002] With the continuous development of mobile communication technology, the Long Term Evolution (LTE) network has gradually entered the commercial stage, and among the many services provided by the LTE system, the voice service is still the most basic and important service. When the LTE network is deployed on a large scale, mobile operators will face long-term coexistence of LTE and the second generation mobile communication system / third generation mobile communication system (Second Generation / Third Generation, 2G / 3G) and other networks, so How to maintain the continuity of voice services between LTE and 2G / 3G networks is an important topic currently being researched by the industry and academia. To solve this problem, the 3rd Generation Partnership Project (3rd Generat...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of unnecessary handover or untimely handover caused by the fixed threshold value and hysteresis value parameters of the base station handover in the existing eSRVCC, and proposes an adaptive optimization scheme for eSRVCC handover parameter setting , by measuring the CQI of the channel to optimize the hysteresis value adaptive parameter correction in the handover trigger condition, and propose a priority design method for the situation where multiple users initiate handover requests at the same time, thus ensuring the effectiveness and flexibility of the eSRVCC handover algorithm, and It provides users with a better seamless call experience and is more suitable for live network environments

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