ADAPTIVE TYPE CHANNEL STATE FEED BACK BASED ON CHANNEL ESTIMATION FEATURE AND REPORT REQUEST

摘要

PROBLEM TO BE SOLVED: To provide an adaptive type channel state feedback (CSF) report in an intermittent reception scenario (DRX) of a power saving format.SOLUTION: A device is provided with a communication circuit composed to communicate through a channel during a plurality of reception cycles. The communication circuit is provided with: a memory composed to store one or more previous channel state feedback (CSF) report from one or more previous reception cycle; and a processor for executing a comparison 604 based on cycle length of current reception cycle and a point of transmission of the current CSF report, selecting 608 between generating new contents based on the comparison for the current CSF report or reusing one of the previous contents from at least one of one or more previous CSF reports, and transmitting 612 the current CSF report to a base station through the channel.SELECTED DRAWING: Figure 6A