公开(公告)号：US20240297814A1

公开(公告)日：2024-09-05

申请号：US18590966

申请日：2024-02-29

Applicant: MEDIATEK INC.

Inventor： Rui Zhang ,  Shiauhe Tsai

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2634 ,  H04L5/0007 ,  H04L5/0051 ,  H04L27/2605

Abstract: A joint sensing method for an orthogonal frequency domain multiplexing communication system, comprises performing inverse fast Fourier transform for an OFDM reference signal symbol to obtain a first plurality of subsets of the OFDM RS symbol; removing, by a receiver of the OFDM communication system, cyclic prefix of a plurality of resource elements of the OFDM RS symbol and at least one of the first plurality of subsets of the OFDM RS symbol to obtain a second plurality of subsets of the OFDM RS symbol; and performing, by the receiver of the OFDM communication system, a phase compensation for the second plurality of subsets of the OFDM RS symbol to obtain the third plurality of subsets of the OFDM RS symbol; and performing fast Fourier transform for the third plurality of subsets of the OFDM RS symbol; wherein the OFDM RS symbol is of a comb structure.

公开(公告)号：US20240297774A1

公开(公告)日：2024-09-05

申请号：US18581407

申请日：2024-02-20

Applicant: MEDIATEK INC.

Inventor： Rui Zhang ,  Tzu-Han Chou ,  Shiauhe Tsai

IPC: H04L5/00 ,  H04B7/08

CPC classification number: H04L5/0098 ,  H04B7/0848 ,  H04L5/0007

Abstract: A joint sensing method for an orthogonal frequency domain multiplexing (OFDM) communication system includes configuring a plurality of reference signal (RS) patterns according to a delay and Doppler shift detection of a measured signal; and determining a two-dimensional (2D) self-ambiguity function according to a delay and sum approach; wherein the delay and sum approach is determined based on linear convolution and frequency binning in a time domain of the plurality of RS patterns; wherein the plurality of RS patterns are for a comb structure.

公开(公告)号：US20240314008A1

公开(公告)日：2024-09-19

申请号：US18593991

申请日：2024-03-04

Applicant: MEDIATEK INC.

Inventor： Rui Zhang ,  Shiauhe Tsai ,  Jiaying Ren

IPC: H04L27/26

CPC classification number: H04L27/26025 ,  H04L27/2607

Abstract: A joint communication and sensing method for an orthogonal frequency domain multiplexing (OFDM) communication system, includes determining a staggering offset format for an OFDM reference signal (RS) symbol; and eliminating a time delay ambiguity in a two-dimension (2D) range with the determined staggering offset format; wherein the OFDM RS symbol is of a comb structure.