US 11,743,897 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, San Diego, 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, San Diego, CA (US); 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 Oct. 1, 2014, as Appl. No. 14/503,584.
Claims priority of provisional application 61/919,518, filed on Dec. 20, 2013.
Prior Publication US 2015/0181589 A1, Jun. 25, 2015
Int. Cl. H04W 72/21 (2023.01); H04L 5/00 (2006.01); H04L 27/00 (2006.01); H04B 7/0452 (2017.01); H04W 74/08 (2009.01); H04B 7/06 (2006.01); H04W 16/14 (2009.01); H04B 7/0456 (2017.01)
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); H04W 74/0833 (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)] 96 Claims
OG exemplary drawing
 
1. A method for wireless communication, comprising:
identifying an orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel for uplink communications based at least in part on an allocation of a plurality of resource blocks, the uplink channel comprising a Physical Uplink Shared Channel (PUSCH), or a Physical Uplink Control Channel (PUCCH), or both;
generating an OFDMA waveform based on the identified OFDMA configuration;
communicating the generated OFDMA waveform in a signal using the uplink channel in the plurality of resource blocks;
transmitting a first reference signal on the uplink channel in a first set of one or more time slots and one or more first frequency sub-carriers, wherein the first set of one or more time slots and one or more first frequency sub-carriers are the same as a second set of one or more time slots and one or more second frequency sub-carriers used to receive a second reference signal on a downlink channel;
determining allocated resources for the PUSCH based at least in part on a bitmap of interlaces, wherein the allocated resources for the PUSCH are based at least in part on a starting interlace and a number of interlaces, and wherein an interlace comprises a pre-defined set of resource blocks; and
when the uplink channel comprises the PUCCH and the PUSCH, frequency division multiplexing the PUCCH and the PUSCH on the uplink channel, wherein frequency division multiplexing the PUCCH and the PUSCH on the uplink channel comprises:
transmitting the PUCCH using a subset of less than all of the plurality of resource blocks; and
transmitting the PUSCH using at least some of the allocated resources.