	US 11,985,637 B2
	SRS design for unlicensed carriers
Meng Wang, Sundbyberg (SE); Jung-Fu Cheng, Fremont, CA (US); Fredrik Lindqvist, Järfälla (SE); Amitav Mukherjee, Fremont, CA (US); and Henrik Sahlin, Mölnlycke (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Jan. 26, 2022, as Appl. No. 17/584,922.
Application 17/584,922 is a continuation of application No. 16/289,024, filed on Feb. 28, 2019, granted, now 11,259,296.
Application 16/289,024 is a continuation of application No. 15/706,292, filed on Sep. 15, 2017, granted, now 10,225,836, issued on Mar. 5, 2019.
Application 15/706,292 is a continuation of application No. 15/425,201, filed on Feb. 6, 2017, granted, now 9,848,424, issued on Dec. 19, 2017.
Claims priority of provisional application 62/291,897, filed on Feb. 5, 2016.
Prior Publication US 2022/0150891 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/28 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04W 72/0446 (2023.01); H04W 74/0808 (2024.01)

CPC H04W 72/0446 (2013.01) [H04L 5/0044 (2013.01); H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04L 25/0224 (2013.01); H04W 74/0808 (2013.01)]

8 Claims

1. A User Equipment for a MulteFire wireless communication network, the User Equipment comprising processing circuitry and a transmitter, the User Equipment being adapted for utilizing the processing circuitry and the transmitter for:

performing a Listen-Before-Talk (LBT) procedure for one or more transmission bandwidths;

transmitting Physical Uplink Shared CHannel (PUSCH) signaling in a PUSCH subframe on one or more interlaces within the one or more transmission bandwidths; and

transmitting Sounding Reference Signaling on the one or more interlaces in the PUSCH subframe, wherein transmitting Sounding Reference Signaling comprises multiplexing Sounding Reference Signaling transmitted on different antenna ports via frequency division and/or based on cyclic shifts.