US 11,901,993 B1
Method and apparatus for transmitting and receiving channel state information in wireless communication system
Kyuseok Kim, Seoul (KR); Hyungtae Kim, Seoul (KR); Jiwon Kang, Seoul (KR); and Haewook Park, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Aug. 10, 2023, as Appl. No. 18/447,686.
Application 18/447,686 is a continuation of application No. 17/985,533, filed on Nov. 11, 2022, granted, now 11,770,170.
Application 17/985,533 is a continuation of application No. 17/715,676, filed on Apr. 7, 2022, granted, now 11,515,918, issued on Nov. 29, 2022.
Application 17/715,676 is a continuation of application No. PCT/KR2021/001895, filed on Feb. 15, 2021.
Claims priority of application No. 10-2020-0018001 (KR), filed on Feb. 13, 2020; application No. 10-2020-0021301 (KR), filed on Feb. 20, 2020; application No. 10-2020-0043651 (KR), filed on Apr. 9, 2020; application No. 10-2020-0087800 (KR), filed on Jul. 15, 2020; and application No. 10-2020-0187574 (KR), filed on Dec. 30, 2020.
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04B 7/0417 (2017.01); H04B 17/336 (2015.01); H04L 5/00 (2006.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0417 (2013.01); H04B 7/0639 (2013.01); H04B 17/336 (2015.01); H04L 5/0051 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, configuration information related to channel state information (CSI) resource setting,
wherein the configuration information includes information on a CSI-reference signal (CSI-RS) resource set;
receiving a CSI-RS from the base station; and
transmitting, to the base station, CSI derived using the CSI-RS,
wherein the CSI-RS resource set is configured with a first resource group, a second resource group and N (N is a natural number) resource pairs,
wherein the CSI includes i) one CSI-RS resource indicator (CRI) corresponding to one resource pair of the N resource pairs and ii) two precoding matrix indicators (PMIs) associated to a first resource of the first resource group and a second resource of the second resource group, respectively, of the one resource pair of the N resource pairs,
wherein the two PMIs for the one resource pair are derived based on the one CRI for the one resource pair, and
wherein, for deriving a PMI for the first resource group, interference from the second resource of the one resource pair is derived.