Switching method and base station based on adaptive modulation coding

Abstract

The invention discloses a switching method and a base station based on adaptive modulation coding. The method comprises the following steps: when a mobile terminal determines a target base station in accordance with a switching condition, sending a switching request message to the target bas station by a base station of the mobile terminal, and carrying a signal quality parameter value of the target base station in the switching request message when the mobile terminal sends the request message; and when the target base station receives a switching request, setting a signal modulation coding mode according to the signal quality parameter value of the target base station in the switching request, and adjusting the signal modulation coding mode automatically according to the quality of a downlink signal in the signaling interaction process and the data transmission process when the mobile terminal is accessed. The method reduces the influence on the downlink data transmission rate and the generation of rate burrs in the switching process, and reduces adverse effects on end user experience.

Description

Switching method and base station based on adaptive modulation and coding Technical field The invention relates to a mobile terminal handover technology in a mobile communication system, in particular to a handover method and base station based on adaptive modulation and coding AMC (Adaptive Modulation and Coding). Background technique The advantage of the Wimax (World Interoperability for Microwave Access) technology is to provide a broadband wireless data service with high bandwidth and QoS (Quality of Service) guarantee. In cities, broadband wireless access services can solve the problem of comprehensive access for major customers and provide broadband data services to major customers. Because Wimax has a large coverage area and can provide reliable and high-quality services, it is more conducive to operators to quickly occupy the market, especially some relatively affluent rural areas have great demand for data services. If a wired method is used to solve this problem, Th...

AI Technical Summary

Problems solved by technology

Although the scene where the handover occurs is generally that the mobile terminal switches from the base station with poor wireless signal quality to the base station with better target signal quality, the target base station for handover does not start adaptive modulation until the mobile terminal completes the handover. coding, when the mobile terminal just accesses, the modulation and coding method used by the target base station may make the transmission rate of the downlink unable to meet the rate maintained by the mobile terminal before the handover, resulting in the formation of rate glitches

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