US 10,368,325 B2
System and method for beam adaptation in a beam-based communications system
Bin Liu, San Diego, CA (US); Pengfei Xia, San Diego, CA (US); Aimin Justin Sang, San Diego, CA (US); and Richard Stirling-Gallacher, Munich (DE)
Assigned to FUTUREWEI TECHNOLOGIES, INC., Plano, TX (US)
Filed by Futurewei Technologies, Inc., Plano, TX (US)
Filed on Oct. 24, 2017, as Appl. No. 15/791,968.
Claims priority of provisional application 62/454,391, filed on Feb. 3, 2017.
Prior Publication US 2018/0227862 A1, Aug. 9, 2018
Int. Cl. H04W 52/14 (2009.01); H04W 52/36 (2009.01); H04W 76/27 (2018.01); H04B 7/06 (2006.01); H04W 72/04 (2009.01); H04W 52/42 (2009.01); H04W 88/02 (2009.01); H04B 7/0404 (2017.01)
CPC H04W 52/365 (2013.01) [H04B 7/063 (2013.01); H04B 7/0617 (2013.01); H04W 52/42 (2013.01); H04W 72/046 (2013.01); H04W 72/0413 (2013.01); H04W 76/27 (2018.02); H04B 7/0404 (2013.01); H04W 88/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for beam adaptation in a beam-based communications system including user equipment (UE) and a transmit-receive point (TRP), the method comprising:
determining, by the UE, a beamforming gain headroom (BHR) based on a UE maximum beamforming gain and a beamforming gain of a UE beam between the UE and the TRP, wherein the BHR is a difference between the UE maximum beamforming gain and the beamforming gain of the UE beam between the UE and the TRP;
in response to the determining sending, by the UE, the BHR to the TRP; and
receiving, by the UE, a beam adaptation indication from the TRP wherein the beam adaptation indication is in accordance with the BHR sent to the TRP.