US Patent Application 18334446. FREQUENCY PRE-COMPENSATION FOR HIGH-SPEED TRAIN SINGLE FREQUENCY NETWORKS simplified abstract

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FREQUENCY PRE-COMPENSATION FOR HIGH-SPEED TRAIN SINGLE FREQUENCY NETWORKS

Organization Name

QUALCOMM Incorporated


Inventor(s)

Kiran Venugopal of Green Brook NJ (US)


Wooseok Nam of San Diego CA (US)


Sungwoo Park of San Diego CA (US)


Tianyang Bai of Somerville NJ (US)


Tao Luo of San Diego CA (US)


Junyi Li of Fairless Hills PA (US)


FREQUENCY PRE-COMPENSATION FOR HIGH-SPEED TRAIN SINGLE FREQUENCY NETWORKS - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 18334446 Titled 'FREQUENCY PRE-COMPENSATION FOR HIGH-SPEED TRAIN SINGLE FREQUENCY NETWORKS'

Simplified Explanation

This abstract discusses wireless communication in high-speed trains (HST) using a single frequency network (SFN). The abstract describes a system where a base station (BS) calculates pre-compensation values for reference signals transmitted through different transmission and reception points (TRPs). The BS then notifies the user equipment (UE) of these pre-compensation values. The UE adjusts its tracking loop for the reference signal based on these values, which helps reduce estimation and search overhead at the UE.


Original Abstract Submitted

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.