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

technical field [0001] The invention relates to mobile terminal switching technology in a mobile communication system, in particular to a switching method and a base station based on Adaptive Modulation and Coding (AMC). Background technique [0002] The advantage of Wimax (World Interoperability for Microwave Access) technology itself is to provide a broadband wireless data service with high bandwidth and QoS (Quality of Service) guarantee. In cities, the broadband wireless access service can solve the integrated access problem for large customers and provide broadband data services to large customers. Since Wimax has a large coverage area and can provide reliable and high-quality services, it is more conducive for operators to quickly occupy the market, especially in some relatively wealthy rural areas where there is a great demand for data services. If this problem is solved by using wired methods, The average revenue per user ARPU (Average Revenue Per User) value is rel...

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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