US 12,219,493 B2
SRS antenna switching for multiple receive antennas
Weimin Duan, San Diego, CA (US); Alexandros Manolakos, Escondido, CA (US); Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US); Pavan Kumar Vitthaladevuni, San Diego, CA (US); Krishna Kiran Mukkavilli, San Diego, CA (US); and Runxin Wang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 12, 2023, as Appl. No. 18/299,315.
Application 18/299,315 is a continuation of application No. 17/066,115, filed on Oct. 8, 2020, granted, now 11,638,217.
Claims priority of application No. 20190100448 (GR), filed on Oct. 9, 2019; and application No. 20200100013 (GR), filed on Jan. 15, 2020.
Prior Publication US 2023/0247558 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/02 (2009.01); H04B 7/0404 (2017.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01); H04W 72/21 (2023.01); H04W 72/51 (2023.01)
CPC H04W 52/0274 (2013.01) [H04B 7/0404 (2013.01); H04L 5/0051 (2013.01); H04W 72/044 (2013.01); H04W 72/21 (2023.01); H04W 72/51 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A device for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive an indication of a number of receive (RX) antenna ports of a user equipment (UE) and a number of transmit (TX) chains of the UE switchably coupled to two or more of the RX antenna ports,
a number of sounding reference signal (SRS) resource sets configured for the UE being based on the number of the TX chains and based on the number of the RX antenna ports being in excess of four,
each SRS resource set, of the number of the SRS resource sets, being provided in a different uplink (UL) slot,
each SRS resource set, of the number of the SRS resource sets, including up to 3 SRS resources, and
wherein either:
the number of the TX chains is equal to 1 and the number of the SRS resource sets is greater than 2, or
the number of the TX chains is greater than 1 and the number of the SRS resource sets is greater than or equal to 1; and
receive UL transmissions of one or more SRS resources for each SRS resource set of the number of the SRS resource sets.