US 12,081,244 B2
Fast SRS antenna port switching for frequency-division duplexing
David Richard Pehlke, Westlake Village, CA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Jan. 19, 2022, as Appl. No. 17/579,495.
Claims priority of provisional application 63/139,393, filed on Jan. 20, 2021.
Prior Publication US 2022/0231710 A1, Jul. 21, 2022
Int. Cl. H04B 1/00 (2006.01); H04B 1/50 (2006.01); H04L 5/14 (2006.01)
CPC H04B 1/0057 (2013.01) [H04B 1/50 (2013.01); H04L 5/1461 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A mobile device comprising:
a baseband processor;
first and second antennas; and
a front end including a transmit power amplifier, a first transmit path, a second transmit path, and a receive path, the front end configurable in a frequency division duplex operation mode to transmit via the first transmit path within a transmit band of a frequency division duplex band and to receive via the receive path within a receive band of the frequency division duplex band, the front end further configurable in a channel modeling mode to transmit via the second transmit path over the first antenna within a receive band of the frequency division duplex band, and further configurable in the channel modeling mode to transmit via the second transmit path over the second antenna within the receive band of the frequency division duplex band.