US 9,813,133 B2
Method and apparatus for reporting channel state information in wireless communication system
Hyunsoo Ko, Seoul (KR); Jiwon Kang, Seoul (KR); and Jaehoon Chung, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 14/767,884
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Mar. 11, 2014, PCT No. PCT/KR2014/001990
§ 371(c)(1), (2) Date Aug. 13, 2015,
PCT Pub. No. WO2014/142506, PCT Pub. Date Sep. 18, 2014.
Claims priority of provisional application 61/776,720, filed on Mar. 11, 2013.
Claims priority of provisional application 61/808,191, filed on Apr. 3, 2013.
Claims priority of provisional application 61/808,220, filed on Apr. 4, 2013.
Claims priority of provisional application 61/812,684, filed on Apr. 16, 2013.
Prior Publication US 2015/0372740 A1, Dec. 24, 2015
Int. Cl. H04B 7/04 (2017.01); H04B 7/06 (2006.01); H04B 7/0456 (2017.01); H04W 72/04 (2009.01); H04W 24/10 (2009.01); H04L 5/00 (2006.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0456 (2013.01); H04B 7/0469 (2013.01); H04B 7/0617 (2013.01); H04B 7/0632 (2013.01); H04B 7/0634 (2013.01); H04B 7/0639 (2013.01); H04B 7/0665 (2013.01); H04L 5/0048 (2013.01); H04W 24/10 (2013.01); H04W 72/0413 (2013.01); H04B 7/063 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a reference signal from a base station (BS); and
reporting the CSI generated using the reference signal to the BS,
wherein the CSI comprises one or more first domain precoding matrix indicators (PMIs) indicating a first precoding matrix for a first domain of a 2D antenna structure,
wherein the CSI comprises a reporting type indicator (RTI) indicating whether a second domain precoding matrix indicator (PMI) indicating a second precoding matrix for a second domain of the 2D antenna structure defined by the first domain and the second domain is reported, and
wherein the RTI is reported prior to a rank indicator (RI).