| CPC H04B 7/0696 (2023.05) [H04B 7/0617 (2013.01); H04B 7/0632 (2013.01); H04W 16/28 (2013.01)] | 16 Claims |

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1. A beam training method, comprising:
acquiring an operating beam set and a query beam set, wherein the operating beam set comprises at least one operating beam, the query beam set comprises K1 query beams, the K1 query beams are divided into Q1 query beam groups, and both K1 and Q1 are positive integers greater than or equal to 2;
issuing multiple pieces of pilot information by utilizing time-frequency resource positions within Q1 beam training periods to train the operating beam set and the query beam set, and
receiving signal quality of the operating beam and the query beam fed back by a terminal device, wherein:
each of the beam training periods comprises an operating beam issuing time and a query beam issuing time; and
issuing the multiple pieces of pilot information by utilizing time-frequency resource positions within Q1 beam training periods comprises:
for each beam training period, transmitting, at a time-frequency resource position within the operating beam issuing time corresponding to the beam training period, the multiple pieces of pilot information by utilizing an operating beam in the operating beam set; and
transmitting, at a time-frequency resource position within the query beam issuing time corresponding to the beam training period, the multiple pieces of pilot information by utilizing a query beam in any of the query beam groups.
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