CPC H04B 7/0456 (2013.01) [H04B 7/08 (2013.01); H04W 72/046 (2013.01); H04W 72/21 (2023.01)] | 5 Claims |
1. A base station, comprising:
a processor that assigns a common downlink reference signal to a plurality of beams based on a Doppler shift estimated using an uplink reference signal; and
a transmitter that transmits the common downlink reference signal in the plurality of beams,
wherein the processor assigns a separate downlink reference signal different from the common downlink reference signal to one or more beams different from the plurality of beams.
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