US 12,323,256 B2
Dynamic uplink control channel carrier switching
Sigen Ye, San Diego, CA (US); Chunhai Yao, Beijing (CN); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, San Jose, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/905,296
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Oct. 1, 2021, PCT No. PCT/CN2021/122494
§ 371(c)(1), (2) Date Aug. 30, 2022,
PCT Pub. No. WO2023/050450, PCT Pub. Date Apr. 6, 2023.
Prior Publication US 2024/0235748 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/1829 (2023.01); H04L 5/00 (2006.01)
CPC H04L 1/1861 (2013.01) [H04L 1/1854 (2013.01); H04L 5/0055 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A user equipment (UE) comprising:
a processor; and
a memory storing instructions that, when executed by the processor, configure the UE to:
decode a radio resource control (RRC) configuration, the RRC configuration indicating a reference cell having a reference cell slot numerology;
determine a slot of the reference cell for PUCCH transmissions based on the reference cell slot numerology, the determined slot of the reference cell being used for transmission of at least one of a scheduling request (SR), a channel state information (CSI), and a hybrid automatic repeat request-acknowledgment (HARQ-ACK);
decode a downlink control information (DCI) indicating a candidate target PUCCH cell and a slot of the candidate target PUCCH cell, the candidate target PUCCH cell having a candidate target PUCCH cell slot numerology;
based on the candidate target PUCCH cell and the slot of the candidate target PUCCH cell indicated by the DCI, determine a target PUCCH cell for transmitting the at least one of the SR, the CSI, and the HARQ-ACK, the target PUCCH cell having a target PUCCH cell slot numerology by:
determining that the slot of the candidate target PUCCH cell indicated by the DCI does not overlap with the determined slot of the reference cell; and
determining that a primary cell (PCell) or a primary secondary cell group (SCG) cell (PSCell) is the target PUCCH cell;
map the determined slot of the reference cell to a corresponding slot of the target PUCCH cell; and
determine a PUCCH resource for transmitting the at least one of the SR, the CSI, and the HARQ-ACK using the corresponding slot of the target PUCCH cell, the PUCCH resource determination being based on a PUCCH configuration of the target PUCCH cell.