US 12,328,168 B2
Frequency domain correlation feedback for enhanced frequency domain partial reciprocity downlink
Alexandros Manolakos, Escondido, CA (US); Pavan Kumar Vitthaladevuni, San Diego, CA (US); Krishna Kiran Mukkavilli, San Diego, CA (US); and Tingfang Ji, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/755,580
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Oct. 22, 2020, PCT No. PCT/US2020/070685
§ 371(c)(1), (2) Date May 2, 2022,
PCT Pub. No. WO2021/102454, PCT Pub. Date May 27, 2021.
Claims priority of application No. 20190100524 (GR), filed on Nov. 18, 2019.
Prior Publication US 2022/0352948 A1, Nov. 3, 2022
Int. Cl. H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/21 (2023.01)
CPC H04B 7/0626 (2013.01) [H04L 5/001 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 5/0057 (2013.01); H04W 72/0453 (2013.01); H04W 72/21 (2023.01)] 55 Claims
OG exemplary drawing
 
21. A method of wireless communication performed by a user equipment (UE), comprising:
transmitting a sounding reference signal (SRS) on a first set of sub-bands; and
reporting channel state information (CSI) associated with a second set of sub-bands,
wherein the first set of sub-bands is different from the second set of sub-bands,
wherein the CSI includes information that identifies one or more frequency
domain correlations among the first set of sub-bands and the second set of sub-bands,
wherein the first set of sub-bands includes a first SRS sub-band and a second SRS sub-band,
wherein the second set of sub-bands includes a first target sub-band and a second target sub-band, and
wherein the one or more frequency domain correlations include:
a first frequency domain correlation between the first SRS sub-band and the first target sub-band, and
a second frequency domain correlation between the second SRS sub-band and the second target sub-band.