US 11,917,426 B2
MIMO training method and wireless device
Lei Huang, Singapore (SG)
Assigned to Panasonic Holdings Corporation, Osaka (JP)
Filed by Panasonic Corporation, Osaka (JP)
Filed on Dec. 14, 2021, as Appl. No. 17/550,793.
Application 17/550,793 is a continuation of application No. 16/797,668, filed on Feb. 21, 2020, granted, now 11,234,139.
Application 16/797,668 is a continuation of application No. 15/431,462, filed on Feb. 13, 2017, granted, now 10,616,773, issued on Apr. 7, 2020.
Application 15/431,462 is a continuation of application No. PCT/JP2015/003159, filed on Jun. 24, 2015.
Claims priority of application No. 2014-165725 (JP), filed on Aug. 18, 2014.
Prior Publication US 2022/0110005 A1, Apr. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04W 16/28 (2009.01); H04B 7/0491 (2017.01); H01Q 15/00 (2006.01); H04B 7/0413 (2017.01); H04B 7/08 (2006.01); H01Q 3/24 (2006.01); H04L 1/20 (2006.01); H04B 1/10 (2006.01)
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
OG exemplary drawing
 
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.