US 12,452,000 B2
Method for determining PUCCH repetition factor, and UE and base station
Shuling Shen, Beijing (CN); Lei Wang, Beijing (CN); and Xuejuan Gao, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 18/031,872
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Sep. 28, 2021, PCT No. PCT/CN2021/121182
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/078204, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 202011110724.3 (CN), filed on Oct. 16, 2020.
Prior Publication US 2023/0388061 A1, Nov. 30, 2023
Int. Cl. H04W 72/00 (2023.01); H04L 1/1812 (2023.01); H04L 1/1822 (2023.01); H04L 5/00 (2006.01); H04W 72/20 (2023.01)
CPC H04L 1/1819 (2013.01) [H04L 1/1822 (2013.01); H04L 5/0053 (2013.01); H04W 72/20 (2023.01)] 16 Claims
OG exemplary drawing
 
1. A method for determining a physical uplink control channel (PUCCH) repetition factor, comprising:
determining a PUCCH repetition factor based on received target information;
wherein the target information comprises first information or second information, the first information comprises a PUCCH resource indication (PRI) field in downlink control information (DCI), and the second information comprises a given field in DCI, a medium access control layer control element (MAC CE) or control information carried by a group common physical downlink control channel (PDCCH);
wherein in case that the target information is control information carried by the group common PDCCH, the determining the PUCCH repetition factor based on received target information comprises:
receiving, for a sixth PUCCH carrying UCI, a group common PDCCH periodically transmitted by a base station, wherein the group common PDCCH is scrambled by a radio network temporary identity (RNTI) to indicate that the group common PDCCH is used for notifying a PUCCH repetition factor, wherein the group common PDCCH comprises one or more information fields, each information field contains R bits, and each of 2R status values composed of R bits corresponds to a PUCCH repetition factor, and R is a positive integer greater than or equal to 1; and
obtaining, by UE, an information field corresponding to the UE from the one or more information fields, and determining a repetition factor of the sixth PUCCH based on a status value of the information field;
wherein each of the one or more information fields is configured with a PUCCH repetition factor for a group of UE on a carrier; or each of the one or more information fields is configured with a UE-specific PUCCH repetition factor for UE;
wherein in case that packet loss occurs on the group common PDCCH, the repetition factor of the sixth PUCCH is any one of the following items: a PUCCH repetition factor indicated by a previous group common PDCCH, a default PUCCH repetition factor or a PUCCH repetition factor configured by RRC.