Invention Grant
- Patent Title: Doppler shift estimate reporting with pre-compensation
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Application No.: US17439438Application Date: 2021-05-07
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Publication No.: US11962368B2Publication Date: 2024-04-16
- Inventor: Haitong Sun , Dawei Zhang , Wei Zeng , Yushu Zhang , Chunxuan Ye , Jie Cui , Huaning Niu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- International Application: PCT/CN2021/091981 2021.05.07
- International Announcement: WO2022/233013A 2022.11.10
- Date entered country: 2021-09-15
- Main IPC: H04B17/00
- IPC: H04B17/00 ; H04B7/01 ; H04B17/364

Abstract:
A first cellular base station transmits a configuration message to a reporting device installed on a high-speed vehicle. The configuration message specifies one or more parameters of a Doppler measurement report. The reporting device performs one or more first Doppler measurements on the first base station and/or one or more second Doppler measurements on a second base station. The reporting device transmits the Doppler measurement report to the first and/or second base stations. The Doppler measurement report may be used by the first and/or second base stations to perform Doppler pre-compensation on transmissions to the reporting device.
Public/Granted literature
- US20230239010A1 Doppler Shift Estimate Reporting with Pre-Compensation Public/Granted day:2023-07-27
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