US 11,057,082 B2
Method and apparatus for transmitting and receiving channel state information in wireless communication system
Younsun Kim, Gyeonggi-do (KR); Hyojin Lee, Gyeonggi-do (KR); Hyoungju Ji, Seoul (KR); Juho Lee, Gyeonggi-do (KR); and Joonyoung Cho, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Apr. 20, 2020, as Appl. No. 16/852,985.
Application 16/852,985 is a continuation of application No. 16/102,254, filed on Aug. 13, 2018, granted, now 10,630,351.
Application 16/102,254 is a continuation of application No. 15/075,524, filed on Mar. 21, 2016, granted, now 10,050,682, issued on Aug. 14, 2018.
Application 15/075,524 is a continuation of application No. 14/030,545, filed on Sep. 18, 2013, granted, now 9,294,168, issued on Mar. 22, 2016.
Claims priority of application No. 10-2012-0103431 (KR), filed on Sep. 18, 2012; and application No. 10-2012-0113608 (KR), filed on Oct. 12, 2012.
Prior Publication US 2020/0252110 A1, Aug. 6, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/0417 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04B 7/0456 (2017.01)
CPC H04B 7/0417 (2013.01) [H04B 7/0469 (2013.01); H04B 7/065 (2013.01); H04B 7/0626 (2013.01); H04L 5/0048 (2013.01); H04B 7/063 (2013.01); H04B 7/0632 (2013.01); H04B 7/0639 (2013.01); H04L 5/0053 (2013.01); H04L 5/0057 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for reporting channel state information (CSI) performed by a terminal in a communication system, the method comprising:
receiving, from a base station, CSI configuration information including configurations on a first channel state information reference signal (CSI-RS), a second CSI-RS, and a CSI interference measurement (CSI-IM) and configuration for a CSI feedback associated with the first CSI-RS, the second CSI-RS and the CSI-IM;
receiving, from the base station, the first CSI-RS and the second CSI-RS based on the configurations on the first CSI-RS and the second CSI-RS;
generating the CSI based on the configuration for the CSI feedback, and the first CSI RS, the second CSI-RS and the CSI-IM; and
reporting, to the base station, the CSI including at least one of a rank indicator (RI), a precoding matrix indicator (PMI), or a channel quality indicator (CQI),
wherein the first CSI-RS and the second CSI-RS are non-zero power CSI-RSs, and
wherein the CSI configuration information includes information on RI restriction which is associated with allowable RIs to be reported.