- Patent Title: Method and apparatus for hybrid automatic repeat request (HARQ)-acknowledgement (ACK) feedback for semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release
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Application No.: US17442294Application Date: 2020-08-07
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Publication No.: US12255846B2Publication Date: 2025-03-18
- Inventor: Yushu Zhang , Hong He , Dawei Zhang , Haitong Sun , Jie Cui , Manasa Raghavan , Wei Zeng , Yang Tang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Eschweiler & Potashnik, LLC
- Agent Ningjiao Zhang
- International Application: PCT/CN2020/107832 WO 20200807
- International Announcement: WO2022/027598 WO 20220210
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L1/1812

Abstract:
A user equipment (UE) device is disclosed. The UE device comprises a processor configured to perform operations comprising receiving a downlink control information (DCI) from a base station. In some embodiments, the DCI comprises an indication to trigger a Type-3 hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback signal. The operations further comprise generating the Type-3 HARQ ACK feedback signal, based on processing the DCI. In some embodiments, the Type-3 HARQ ACK feedback signal comprises one or more HARQ-ACK bits for semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release(s). In some embodiments, each of the one or more HARQ-ACK bits for SPS PDSCH release(s) is adapted to include HARQ-ACK information for an SPS PDSCH release associated with the UE. Further, the operations comprise sending the Type-3 HARQ-ACK feedback signal to the base station.
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