Invention Grant
- Patent Title: Frequency pre-compensation for high-speed train single frequency networks
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Application No.: US17301613Application Date: 2021-04-08
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Publication No.: US11716113B2Publication Date: 2023-08-01
- Inventor: Kiran Venugopal , Wooseok Nam , Sungwoo Park , Tianyang Bai , Tao Luo , Junyi Li
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Haynes and Boone, LLP
- Main IPC: H04B1/62
- IPC: H04B1/62 ; H04L5/00 ; H04W24/08 ; H04W72/23

Abstract:
Wireless communication devices, systems, and methods related to mechanisms for transmitting and receiving reference signals in a high-speed train (HST) single frequency network (SFN). A base station (BS) determines a first frequency pre-compensation value for a reference signal transmitted via a first transmission and reception point (TRP) and a second frequency pre-compensation value for a reference signal via a second TRP. The BS notifies a user equipment (UE) of the first and second pre-compensation values through at least one of the TRPs. The BS applies the first pre-compensation value to the reference signal via the first TRP and the second pre-compensation value to the reference signal via the second TRP. The UE adjusts its tracking loop for the reference signal based on the pre-compensation values, reducing estimation and/or search overhead at the UE.
Public/Granted literature
- US20210320685A1 FREQUENCY PRE-COMPENSATION FOR HIGH-SPEED TRAIN SINGLE FREQUENCY NETWORKS Public/Granted day:2021-10-14
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