US 12,278,716 B2
SRS carrier switching for additional SRS
Le Liu, Fremont, CA (US); Alberto Rico Alvarino, San Diego, CA (US); and Rebecca Wen-Ling Yuan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 13, 2021, as Appl. No. 17/320,217.
Claims priority of provisional application 63/025,146, filed on May 14, 2020.
Prior Publication US 2021/0359882 A1, Nov. 18, 2021
Int. Cl. H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04W 8/24 (2009.01); H04W 72/0453 (2023.01); H04W 72/21 (2023.01)
CPC H04L 25/0226 (2013.01) [H04L 5/0051 (2013.01); H04W 8/24 (2013.01); H04W 72/0453 (2013.01); H04W 72/21 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication at a user equipment (UE), comprising:
receiving a sounding reference signal (SRS) configuration and a downlink transmission scheduling an uplink transmission,
the uplink transmission being scheduled on a source component carrier (CC),
the SRS configuration comprising one or more additional SRS symbols relative to a first set of SRS symbols associated with an aperiodic trigger Type 1 or a periodic trigger Type 0,
the one or more additional SRS symbols being scheduled on a destination CC,
at least one of the one or more additional SRS symbols overlapping at least partially with the uplink transmission,
the one or more additional SRS symbols being scheduled on a first serving cell in a first subframe that overlaps with a second subframe on a second serving cell, the first subframe being subframe N and the second subframe being subframe N+1, and
the first serving cell and the second serving cell being within a same serving cell set; and
dropping, based on the one or more additional SRS symbols being scheduled on the first serving cell in the first subframe that overlaps with the second subframe on the second serving cell and the first subframe being the subframe N and the second subframe being the subframe N+1, a transmission of at least a part of an SRS in the one or more additional SRS symbols on the destination CC or at least a part of the uplink transmission on the source CC, wherein SRS flexible timing is configured for the first set of SRS symbols and not for the one or more additional SRS symbols.