CPC H04W 16/28 (2013.01) [H01Q 15/0033 (2013.01); H04B 7/0413 (2013.01); H04B 7/0491 (2013.01); H04B 7/0608 (2013.01); H04B 7/0617 (2013.01); H04B 7/0695 (2013.01); H04B 7/06952 (2023.05); H04B 7/088 (2013.01); H01Q 3/24 (2013.01); H04B 1/1027 (2013.01); H04B 7/0684 (2013.01); H04B 7/0802 (2013.01); H04L 1/20 (2013.01)] | 10 Claims |
1. An initiator apparatus comprising:
transmission circuitry which includes a plurality of transmission antennas and which, in operation, transmits first training packets for transmission sector sweeping (TXSS), transmits second training packets for reception sector sweeping (RXSS) by a responder apparatus that comprises a plurality of reception antennas, and transmits third training packets for beam combination training between the initiator apparatus and the responder apparatus; and
determination circuitry, which in operation, selects a subset of candidate transmission sectors for each of the plurality of transmission antennas, obtains a subset of candidate reception sectors for each of the plurality of reception antennas, and determines N transmission/reception sector combinations from the subset of candidate transmission sectors and the subset of candidate reception sectors, each of the N transmission/reception sector combinations comprising a transmission sector and a reception sector, wherein N is an integer that is larger than one, and wherein each of the plurality of transmission antennas of the initiator apparatus corresponds to a single transmission sector and each of the plurality of reception antennas of the responder apparatus corresponds to a single reception sector.
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