US 12,457,611 B2
Techniques for configuring uplink channels in unlicensed radio frequency spectrum bands
Tao Luo, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Durga Prasad Malladi, San Diego, CA (US); Yongbin Wei, La Jolla, CA (US); Naga Bhushan, San Diego, CA (US); Aleksandar Damnjanovic, Del Mar, CA (US); Srinivas Yerramalli, San Diego, CA (US); Tingfang Ji, San Diego, CA (US); Hao Xu, Beijing (CN); and Peter Gaal, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 19, 2023, as Appl. No. 18/355,316.
Application 18/355,316 is a division of application No. 14/503,584, filed on Oct. 1, 2014, granted, now 11,743,897.
Claims priority of provisional application 61/919,518, filed on Dec. 20, 2013.
Prior Publication US 2024/0023105 A1, Jan. 18, 2024
Int. Cl. H04W 72/21 (2023.01); H04B 7/0452 (2017.01); H04L 5/00 (2006.01); H04L 27/00 (2006.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04W 16/14 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 72/21 (2023.01) [H04B 7/0452 (2013.01); H04L 5/001 (2013.01); H04L 5/0032 (2013.01); H04L 5/0041 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 5/0073 (2013.01); H04L 27/0006 (2013.01); H04B 7/0456 (2013.01); H04B 7/0604 (2013.01); H04L 5/0007 (2013.01); H04L 5/0044 (2013.01); H04L 5/0053 (2013.01); H04W 16/14 (2013.01); H04W 74/0833 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication, comprising:
one or more memories; and
one or more processors coupled with the one or more memories and configured to cause the apparatus to:
assign a virtual cell identifier of a first base station to first communications between the first base station and a first user equipment (UE), wherein the virtual cell identifier is also assigned to second communications between a second base station and a second UE;
identify a set of common resource blocks for transmission of a demodulation reference signal (DM-RS) via an uplink channel between the first base station and the first UE and for reception of the DM-RS via a downlink channel between the first base station and the first UE, the identification of the set of common resource blocks being based at least in part on the virtual cell identifier, and the set of common resource blocks including a set of one or more time slots and one or more frequency sub-carriers used for both transmission of the DM-RS via the uplink channel and reception of the DM-RS via the downlink channel; and
communicate the DM-RS via the set of common resource blocks, wherein the DM-RS is communicated between the first base station and the first UE is the same as a respective DM-RS of the second communications based at least in part on the virtual cell identifier being assigned to both the first communications and the second communications.