Reconfiguration method and reconfiguration system of relay subframes

一种中继子帧的重配置方法及系统

Abstract

本发明涉及一种中继子帧的重配置方法及系统,属于无线通信技术领域。本发明根据前N个子帧调整周期eNodeB和Relay业务量变化情况,预测下一子帧调整周期eNodeB和Relay的业务量,根据预测出的下一子帧调整周期的DeNB和Relay的业务量判断是否需要增加Un子帧或减少Un子帧,并根据结果对RN子帧进行重配置,当需要增加子帧时,根据DeNB小区上下行配置方式对应的Un子帧配置方式中选取子帧个数增加的子帧配置方式,当需要减少子帧时,根据DeNB小区上下行配置方式对应的Un子帧配置方式中选取子帧个数减少的子帧配置方式,从而实现根据业务量对子帧的配置方式进行调整,避免了由于子帧配置不合理所造成的数据拥塞的问题,本发明简单易行,工程上易于实现,提高了中继节点的性能。
The invention relates to a reconfiguration method and a reconfiguration system of relay subframes, belonging to the technical field of wireless communication. The method comprises the following steps of: predicting traffic of an eNodeB and a Relay of next subframe adjusting period according to change conditions of the traffic of the eNodeB and the relay of former N subframe adjusting periods; and judging whether to increase a Un subframe or reduce the Un subframe according to the predicted traffic of a DeNB and the relay of the next subframe adjusting period, and performing reconfiguration for RN subframes according to the result, when increase of the subframes is required, selecting a subframe configuration mode capable of increasing the number of the subframes from Un subframe configuration modes corresponding to uplink and downlink configuration modes of a DeNB cell, and when decrease of the subframes is required, selecting the subframe configuration mode capable of decreasing the number of the subframes from the Un subframe configuration modes corresponding to the uplink and downlink configuration modes of the DeNB cell. Thus, configuration modes of the subframes can be adjusted according to the traffic, a problem of data congestion caused by unreasonable subframe configuration is avoided. The method and the system provided by the invention are simple and practicable, are easy to realize in engineering, and improve performance of relay nodes.

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