US 12,284,672 B2
Method of LBT type determination and user equipment
Hao Lin, Neuilly-sur-Seine (FR)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Mar. 14, 2022, as Appl. No. 17/693,945.
Application 17/693,945 is a continuation of application No. PCT/CN2020/120455, filed on Oct. 12, 2020.
Claims priority of application No. PCT/IB2019/001186 (WO), filed on Oct. 11, 2019.
Prior Publication US 2022/0210831 A1, Jun. 30, 2022
Int. Cl. H04W 74/0808 (2024.01); H04W 72/23 (2023.01)
CPC H04W 74/0808 (2013.01) [H04W 72/23 (2023.01)] 13 Claims
OG exemplary drawing
 
1. A method, performed by a user equipment (UE), for determining a Listen Before Talk (LBT) type for a Physical Uplink Shared CHannel (PUSCH) transmission, which is scheduled by an uplink (UL) grant Downlink Control Information (DCI), the method comprising:
obtaining a first indication about the LBT type;
obtaining a second indication about a starting location T_cot_s_1 of a first Base Station Channel Occupancy Time (BS COT) and an ending location T_cot_e_1 of the first BS COT;
obtaining a third indication about a starting location T_pusch_s of a scheduled PUSCH resource and an ending location T_pusch_e of the scheduled PUSCH resource; and
determining the LBT type for the PUSCH transmission, based on the first, second and third indications, comprising:
when the scheduled PUSCH resource is fully inside the first BS COT: T_cot_s_1≤T_pusch_s and T_cot_e_1≥T_pusch_e, the first BS COT is used for sharing for the UE to perform a quick LBT type, wherein the LBT type for the PUSCH transmission is the LBT type indicated by the first indication;
when the scheduled PUSCH resource is not fully inside the first BS COT, the first BS COT is not used for sharing for the UE to perform the quick LBT type; wherein the LBT type for the PUSCH transmission is a second LBT type;
wherein the step of when the scheduled PUSCH resource is not fully inside the first BS COT, the LBT type for the PUSCH transmission is the second LBT type comprises:
when the scheduled PUSCH resource is fully outside the first BS COT: T_cot_e_1≤T_pusch_s, the LBT type for the PUSCH transmission is the second LBT type;
when the scheduled PUSCH resource is partially outside the first BS COT: T_cot_s_1≤T_pusch_s, and T_cot_e_1<T_pusch_e, the LBT type for the PUSCH transmission is the second LBT type.