US 11,751,088 B2
Channel state information (CSI) measurements and CSI reporting in licensed assisted access (LAA)
Abhijeet Bhorkar, Fremont, CA (US); Hwan-Joon Kwon, Santa Clara, CA (US); Jeongho Jeon, San Jose, CA (US); and Qiaoyang Ye, Fremont, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Apr. 29, 2022, as Appl. No. 17/733,057.
Application 17/733,057 is a continuation of application No. 16/994,965, filed on Aug. 17, 2020, granted, now 11,337,098.
Application 16/994,965 is a continuation of application No. 15/767,861, granted, now 10,750,394, previously published as PCT/US2016/048145, filed on Aug. 23, 2016.
Claims priority of provisional application 62/252,365, filed on Nov. 6, 2015.
Prior Publication US 2022/0264352 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 24/10 (2009.01); H04L 5/00 (2006.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04L 1/00 (2006.01); H04L 27/00 (2006.01)
CPC H04W 24/10 (2013.01) [H04B 7/0456 (2013.01); H04B 7/063 (2013.01); H04B 7/0626 (2013.01); H04B 7/0632 (2013.01); H04L 1/0004 (2013.01); H04L 5/001 (2013.01); H04L 5/0048 (2013.01); H04L 5/0057 (2013.01); H04L 5/0091 (2013.01); H04L 27/0006 (2013.01)] 20 Claims
OG exemplary drawing
 
13. A method, performed by a base station, the method comprising:
communicating, to a user equipment (UE), a set of subframes of a license assisted access (LAA) secondary cell (SCell), each subframe of the set of subframes includes cell-specific reference signals (CRS) or channel state information (CSI) reference signals (CSI-RS);
receiving, in response to the set of subframes, a CSI report that indicates CSI, the CSI including a channel quality indicator (COI) based at least in part on an average of one or more channel measurements from multiple subframes of the set of subframes, wherein the multiple subframes comprise a first subframe and a second subframe later than the first subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of at least a first three OFDM symbols of the second subframe are occupied, and wherein, when there are one or more additional subframes between the first subframe and the second subframe, each OFDM symbol of the one or more additional subframes is occupied; and
processing the CSI report to facilitate further communication with the UE.