US 11,985,085 B2
Method and apparatus for communications in a distributed antenna system
Dalin Zhu, Richardson, TX (US); and Eko Onggosanusi, Coppell, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 24, 2022, as Appl. No. 17/582,929.
Claims priority of provisional application 63/152,431, filed on Feb. 23, 2021.
Claims priority of provisional application 63/141,748, filed on Jan. 26, 2021.
Prior Publication US 2022/0239429 A1, Jul. 28, 2022
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0048 (2013.01) [H04L 5/0005 (2013.01); H04L 5/0032 (2013.01); H04L 5/0057 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to receive:
a first configuration for measuring a channel difference between a target cell and a reference cell in a cell group; and
a second configuration for reporting the channel difference between the target cell and the reference cell in the cell group; and
a processor operably coupled to the transceiver, the processor configured to:
determine, based on the first configuration, the channel difference between the target cell and the reference cell in the cell group,
wherein the transceiver is further configured to transmit, based on the second configuration, a channel difference report associated with the determined channel difference, and
wherein:
the channel difference report is (i) multiplexed in a channel state information (CSI) report or (ii) reported as a standalone CSI parameter in the CSI report, and
one of:
the CSI report is a wideband (WB) CSI report and the channel difference report is multiplexed at least with one or more CSI parameters in the WB CSI report; and
the CSI report is a narrowband (NB) CSI report and the channel difference report is multiplexed at least with one or more CSI parameters including a channel quality indicator (CQI), a rank indicator (RI) a precoding matrix indicator (PMI), or a layer indicator (LI) of the NB CSI report.