The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Sep. 20, 2019
Mediatek Singapore Pte. Ltd., Singapore, SG;
Abhishek Roy, San Jose, CA (US);
Pavan Santhana Krishna Nuggehalli, San Jose, CA (US);
MediaTek Singapore Pte. Ltd., Singapore, SG;
Abstract
A method for determining Listen Before Talk (LBT) type and Channel Access Priority Class (CAPC) for Physical Uplink Control Channel (PUCCH) transmission in 5G New Radio-Unlicensed (NR-U) is proposed. Major uplink control information (UCI) transmitted over PUCCH are: (a) Scheduling Request (SR), (b) ACK/NAK (when no UL data to transmit), and (c) Channel State Information (CSI) Report (periodic). In one embodiment, UE selects Category 4 LBT for all PUCCH transmissions as Category 4 LBT offers fairness with other unlicensed network nodes. In another embodiment, UE selects either Category 4 LBT or Category 2 LBT or a mix of Category 2 and Category 4 for PUCCH transmission depending on the PUCCH format. In yet another embodiment, for Category 4 LBT, UE determines CAPC based on the associated UCI content.