US 12,225,582 B2
Channel access enhancements for ultra-reliable low-latency communication (URLLC) in unlicensed spectrum
Salvatore Talarico, Los Gatos, CA (US); Sergey Panteleev, Maynooth (IE); Debdeep Chatterjee, San Jose, CA (US); Toufiqul Islam, Santa Clara, CA (US); and Yongjun Kwak, San Diego, CA (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Mar. 8, 2021, as Appl. No. 17/194,673.
Claims priority of provisional application 63/121,771, filed on Dec. 4, 2020.
Claims priority of provisional application 63/040,682, filed on Jun. 18, 2020.
Claims priority of provisional application 62/989,302, filed on Mar. 13, 2020.
Prior Publication US 2021/0195643 A1, Jun. 24, 2021
Int. Cl. H04W 74/08 (2024.01); H04W 72/1268 (2023.01); H04W 74/00 (2009.01); H04W 74/0816 (2024.01); H04W 76/27 (2018.01)
CPC H04W 74/0816 (2013.01) [H04W 72/1268 (2013.01); H04W 74/004 (2013.01); H04W 76/27 (2018.02)] 19 Claims
OG exemplary drawing
 
1. An apparatus of a user equipment (UE) configurable for unlicensed band operation in a fifth-generation new radio (SG NR) system (5GS), the apparatus comprising: processing circuitry; and memory,
wherein when operating in semi-static channel access mode, the processing circuitry is configured to:
decode downlink control information (DCI) that schedules an uplink grant for a physical uplink shared channel (PUSCH), the DCI indicating whether the uplink grant is to be performed with a UE-initiated channel-occupancy time (COT) or with a generation Node B (gNB) initiated COT that is to be shared with the UE,
wherein when the DCI indicates that the uplink grant is to be performed for the VE initiated COT, the processing circuitry is configured to cause the UE to transmit an uplink (UL) transmission burst carrying the PUSCH, as an initiating device, starting at a beginning of fixed frame period (FFP) and ending at a symbol before an idle period of the FFP after a successful clear-channel assessment (CCA),
wherein when the DCI indicates that the uplink grant is to be performed with the gNB-initiated COT that is to be shared with the UE, the processing circuitry is configured to cause the UE to transmit the UL transmission burst carrying the PUSCH within a predetermined time period after detection of a downlink (DL) transmission burst within the gNB-initiated COT without first performing the CCA,
wherein the UL transmission burst within the gNB-initiated COT indicates a time-domain resource utilization by the UE within the gNB-initiated COT.