Autonomous off-peak data transfer by passively estimating overall LTE cell load

A method for off-peak transfer of data, by which user equipment (UE) autonomously shifts a peak load on a base station, is proposed and evaluated. In regard to the proposed method, how UE monitors the load on a base station is a significant problem. To solve this problem, a novel method of passively estimating the resource block (RB) usage rate of a serving cell on the basis of radio conditions measured by UE is presented. The estimated RB usage rate can be regarded as the traffic load on the base station. The effectiveness of the proposed methods for load monitoring and off-peak transfer of data was validated through experiments on commercial LTE networks.

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