US 11,658,713 B2
Apparatus and method for non-orthogonal multiple access in wireless communication system
Byungju Lee, Suwon-si (KR); Chung Gu Kang, Seoul (KR); Ameha Tsegaye Abebe, Seoul (KR); and Hyojin Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR); and Korea University Research & Business Foundation, Seoul (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR); and Korea University Research and Business Foundation, Seoul (KR)
Filed on Oct. 14, 2020, as Appl. No. 17/70,807.
Claims priority of application No. 10-2019-0128061 (KR), filed on Oct. 15, 2019.
Prior Publication US 2021/0111772 A1, Apr. 15, 2021
Int. Cl. H04B 7/0456 (2017.01); H04W 76/27 (2018.01); H04B 7/216 (2006.01)
CPC H04B 7/0482 (2013.01) [H04B 7/216 (2013.01); H04W 76/27 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, for a non-orthogonal multiple access (NOMA), from a base station, first information related to an entire codebook set for a plurality of terminals;
receiving, for the NOMA, from the base station, second information indicating a codebook set for the terminal that is a subset of the entire codebook set for the plurality of terminals;
generating uplink signals by using a plurality of codebooks of the codebook set for the terminal; and
transmitting the uplink signals to a base station,
wherein a first uplink signal of a first resource among the uplink signals is generated based on a first codeword of a first codebook among the plurality of codebooks,
wherein a second uplink signal of a second resource adjacent to the first resource among the uplink signals is generated based on a second codeword of a second codebook that is different from the first codebook among the plurality of codebooks,
wherein the first information is indicated by a radio resource control (RRC) signaling,
wherein the second information is indicated by a medium access control (MAC) control element (CE) or downlink control information (DCI),
wherein the first resource comprises N number of subcarriers in a frequency domain,
wherein the second resource comprises N number of other subcarriers adjacent to the N number of subcarriers, and
wherein the N corresponds to a number of resource elements (REs) to which a code of the codebook applies.