CPC H04B 7/0456 (2013.01) [H04B 7/04 (2013.01); H04B 7/0478 (2013.01); H04B 7/063 (2013.01); H04B 7/065 (2013.01); H04B 7/0639 (2013.01); H04B 7/0647 (2013.01); H04B 7/0695 (2013.01); H04W 24/08 (2013.01)] | 20 Claims |
1. An electronic device at a base station in a wireless communication system, the electronic device comprising:
processing circuitry configured to:
receive wideband channel state information from a user equipment;
receive a quality report from the user equipment, wherein the quality report indicates that a communication quality between the user equipment and the base station is lower than a predetermined threshold;
transmit, to the user equipment, a reference signal and an estimation instruction indicating that the user equipment is to estimate subband channel state information based on the reference signal; and
receive the subband channel state information from the user equipment.
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