US 12,445,256 B2
Controlling multiplexing of a reference signal on an uplink shared channel
Yi Huang, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Renqiu Wang, San Diego, CA (US); and Wei Yang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 19, 2022, as Appl. No. 17/868,590.
Application 17/868,590 is a continuation of application No. 16/243,858, filed on Jan. 9, 2019, granted, now 11,394,517.
Claims priority of provisional application 62/617,127, filed on Jan. 12, 2018.
Prior Publication US 2023/0006801 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 5/26 (2006.01); H04W 72/1263 (2023.01); H04W 72/1268 (2023.01); H04W 72/23 (2023.01); H04W 72/20 (2023.01)
CPC H04L 5/0057 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0042 (2013.01); H04L 5/0051 (2013.01); H04L 5/0055 (2013.01); H04L 5/0094 (2013.01); H04L 5/26 (2013.01); H04W 72/1263 (2013.01); H04W 72/1268 (2013.01); H04W 72/23 (2023.01); H04W 72/20 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A user equipment (UE) for wireless communication, comprising:
memory storing processor-executable code; and
one or more processors coupled with the memory and operable to execute the code to cause the UE to:
receive, by the UE, downlink control information comprising a grant allocating a resource block of an uplink shared channel for an uplink transmission and indicating whether to frequency division multiplex a demodulation reference signal with uplink shared data based at least in part on whether the uplink transmission comprises the uplink shared data;
determine, by the UE, a mapping for the resource block of the uplink shared channel that includes the demodulation reference signal and uplink control information in the resource block of the uplink shared channel, wherein the demodulation reference signal is mapped to two symbols periods of the uplink shared channel and resource elements of the demodulation reference signal in each symbol period are separated by one or more intervening resource elements, and wherein, to determine the mapping, the one or more processors are further operable to execute the code to cause the UE to:
time division multiplex the demodulation reference signal and the uplink control information to different symbol periods of the resource block of the uplink shared channel, wherein:
the demodulation reference signal and the uplink shared data are frequency division multiplexed when the downlink control information indicates that the uplink transmission comprises the uplink shared data and the downlink control information indicates to frequency division multiplex the demodulation reference signal with the uplink shared data; or
the one or more intervening resource elements are empty when the downlink control information indicates that the uplink transmission does not comprise the uplink shared data; and
transmit the uplink transmission within the resource block of the uplink shared channel based at least in part on the mapping.