US 11,729,668 B2
Apparatus and method for fronthaul transmission in wireless communication system
Jaeyoel Kim, Suwon-si (KR); Zhen Li, Suwon-si (KR); Daejoong Kim, Suwon-si (KR); Woojae Kim, Suwon-si (KR); and Namryul Jeon, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/278,221
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Sep. 20, 2019, PCT No. PCT/KR2019/012253
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/060296, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10-2018-0113200 (KR), filed on Sep. 20, 2018; and application No. 10-2019-0011051 (KR), filed on Jan. 29, 2019.
Prior Publication US 2021/0352526 A1, Nov. 11, 2021
Int. Cl. H04W 28/06 (2009.01); H04L 1/00 (2006.01); H04L 1/1607 (2023.01); H04L 5/00 (2006.01)
CPC H04W 28/06 (2013.01) [H04L 1/0003 (2013.01); H04L 1/1614 (2013.01); H04L 5/0094 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A digital unit (DU) in a wireless communication system, comprising:
a transceiver; and
at least one processor configured to:
generate at least one compressed symbol based on modulation compression using an in-phase data (I-data) and a quadrature-phase data (Q-data), and wherein each of the I-data and the Q-data is represented by at least one bit determined based on modulation order;
transmit, to a radio unit (RU) through a fronthaul, control information including:
position indication information for indicating a position of a first subcarrier signal transmitted in a physical resource block (PRB) to which the at least one compressed symbol is mapped, and
power indication information for indicating a transmit power of the first subcarrier signal associated with a scaler value for the modulation compression; and
transmit the at least one compressed symbol to the RU.