US 12,273,917 B2
Channel access indication for spectral reuse, power savings and coexistence
Lakshmi R. Iyer, King of Prussia, PA (US); Qing Li, Princeton Junction, NJ (US); Joseph M. Murray, Schwenksville, PA (US); Mohamed Awadin, San Diego, CA (US); Guodong Zhang, Woodbury, NY (US); Pascal M. Adjakple, Great Neck, NY (US); and Allan Y. Tsai, Boonton, NJ (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Mar. 24, 2023, as Appl. No. 18/189,406.
Application 18/189,406 is a continuation of application No. 17/051,245, abandoned, previously published as PCT/US2019/031770, filed on May 10, 2019.
Claims priority of provisional application 62/790,539, filed on Jan. 10, 2019.
Claims priority of provisional application 62/669,569, filed on May 10, 2018.
Prior Publication US 2023/0232453 A1, Jul. 20, 2023
Int. Cl. H04W 74/0808 (2024.01); H04W 72/1268 (2023.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0808 (2013.01) [H04W 72/1268 (2013.01); H04W 72/23 (2023.01); H04W 74/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising a processor, a memory, and communication circuitry, wherein the processor, memory, and communication circuitry are configured to:
receive a radio resource control (RRC) message, the RRC message comprising an indication of a number of bits used to indicate a channel occupancy time (COT) in a downlink control information (DCI) transmission;
perform a first type of channel access procedure;
receive a first DCI, wherein the first DCI is associated with a slot format indicator radio network temporary identifier (SFI-RNTI), and the first DCI comprises a slot format indication, an indication of the COT using the number of bits indicated in the RRC message, and a bitmap, the bitmap indicating one or more available subbands;
determine the COT from the first DCI;
switch from the first type of channel access procedure to a second type of channel access procedure at least based on the indication of the COT received in the first DCI;
receive a second DCI, wherein the second DCI is associated with a cell radio network temporary identifier (C-RNTI), wherein the second DCI comprises an uplink grant, and wherein the uplink grant indicates a plurality of time domain resource assignments; and
perform a physical uplink shared channel transmission in accordance with at least one of the plurality of time domain resource assignments during at least part of the COT.