US 12,069,716 B2
Physical uplink control channel secondary cell activation in new radio
Jie Cui, Cupertino, CA (US); Qiming Li, Beijing (CN); Yang Tang, Cupertino, CA (US); Manasa Raghavan, Cupertino, CA (US); Xiang Chen, Cupertino, CA (US); Huaning Niu, Cupertino, CA (US); Dawei Zhang, Cupertino, CA (US); and Hong He, Cupertino, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/593,183
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Jan. 15, 2021, PCT No. PCT/CN2021/072216
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2022/151372, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2023/0180285 A1, Jun. 8, 2023
Int. Cl. H04W 74/00 (2009.01); H04L 5/00 (2006.01); H04W 56/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/002 (2013.01) [H04L 5/0094 (2013.01); H04W 56/0045 (2013.01); H04W 74/0833 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for a user equipment (UE), comprising:
obtaining a physical uplink control channel (PUCCH) secondary cell (SCell) activation command from a primary cell (PCell) or primary secondary-cell-group cell (PSCell), wherein the PUCCH SCell activation command is used for an PUCCH SCell activation of a target PUCCH SCell for the UE;
performing PUCCH SCell activation operations associated with a valid timing advance (TA) and the PUCCH SCell activation command, wherein a TA is considered to be a valid TA when the TA meets a preset criterion,
wherein performing the PUCCH SCell activation operations associated with the valid TA and the PUCCH SCell activation command comprises performing uplink (UL) PUCCH SCell activation operations associated with the valid TA and the PUCCH SCell activation command in a first time period, a second time period, and a third time period,
wherein, the third time period is greater than or equal to k+1 slots, and wherein k=┌Nslotsubframe,μ·(NT,1+NT,2+NTA,max+T0)/Tsf┐, where NT,1 is a time duration of N1 symbols corresponding to a physical downlink shared channel (PDSCH) processing time for UE processing capability 1 when additional PDSCH demodulation reference signal (DM-RS) is configured, NT,2 is a time duration of N2 symbols corresponding to a physical uplink shared channel (PUSCH) preparation time for UE processing capability 1, NTA,max is a maximum timing advance value that is provided by a TA command field of 12 bits, Nslotsubframe,μ is a number of slot per subframe, and Tsf is a subframe duration, T0 is a preset time period, and where N1 and N2 are determined with respect to a minimum subcarrier spacing (SCS) among SCSs of all configured UL bandwidth parts (BWPs) for all uplink carriers in a timing advance group (TAG) and of all configured DL BWPs for corresponding downlink carriers; and
generating a channel state information (CSI) report for transmission to at least one of the PCell, PSCell and the target PUCCH SCell, wherein the CSI report indicates that the PUCCH SCell activation is completed.