US 12,089,170 B2
Apparatus and method for N1-N2 bitmap generation for cellular communication system
Hao Chen, Plano, TX (US); Shiyang Leng, Allen, TX (US); Ahmed Atef Ibrahim Ibrahim, Plano, TX (US); Namjeong Lee, Suwon-si (KR); and Sooyoung Hur, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 11, 2022, as Appl. No. 17/693,205.
Claims priority of provisional application 63/227,728, filed on Jul. 30, 2021.
Prior Publication US 2023/0034556 A1, Feb. 2, 2023
Int. Cl. H04B 7/04 (2017.01); H04B 7/06 (2006.01); H04W 52/18 (2009.01); H04W 52/42 (2009.01)
CPC H04W 52/42 (2013.01) [H04B 7/0634 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A base station (BS) in a wireless communication system, the BS comprising:
a transceiver; and
a processor configured to regulate a transmit power in a direction of an earth station or a predefined receiver by:
calculating a power flux density for the BS to at least one of the earth station or the predefined receiver;
calculating an equivalent antenna gain for each of a number of base stations;
calculating a directional power back-off level for each of the number of base stations with respect to the earth station or the predefined receiver;
generating a restricted precoding matrix indicator (PMI) based on the calculated directional power back-off level;
generating an N1-N2 bitmap for the BS based on one or more of:
physical parameters of the earth station of the predefined receiver;
physical parameters of the BS;
an operator input metric; or
restricted precoding matrix indicator; and
applying the N1-N2 bitmap for signal transmission to at least one user equipment (UE).