公开(公告)号：US20240137115A1

公开(公告)日：2024-04-25

申请号：US17972965

申请日：2022-10-24

Applicant: Intel Corporation

Inventor： Sundar Krishnamurthy ,  Conor O'Keeffe ,  Deepak Dasalukunte ,  Finbarr O'Regan ,  Abhinav Vinod

IPC: H04B7/185

CPC classification number: H04B7/1855 ,  H04B7/18513 ,  H04B7/18521 ,  H04B7/18543

Abstract: An apparatus can include transceiver circuitry to receive an input signal from a target apparatus. The apparatus can further include a processing circuitry to determine position information of a source object and a target object. Based on the position information, the processing circuitry can calculate a relative velocity and determine a Doppler shift or carrier frequency offset in the input signal based on the relative velocity. The processing circuitry can adjust a local oscillator frequency based on a Doppler measured using the position information in an initial link acquisition phase. The processing circuitry can track the Doppler continuously over a range of tens of gigahertz accounting for Doppler phase ambiguities, and correct for a tracked Doppler shift by partially adjusting a local oscillator frequency and by correcting a residual Doppler shift digitally.

公开(公告)号：US20240235665A9

公开(公告)日：2024-07-11

申请号：US17972965

申请日：2022-10-25

Applicant: Intel Corporation

Inventor： Sundar Krishnamurthy ,  Conor O'Keeffe ,  Deepak Dasalukunte ,  Finbarr O'Regan ,  Abhinav Vinod

IPC: H04B7/185

CPC classification number: H04B7/1855 ,  H04B7/18513 ,  H04B7/18521 ,  H04B7/18543

Abstract: An apparatus can include transceiver circuitry to receive an input signal from a target apparatus. The apparatus can further include a processing circuitry to determine position information of a source object and a target object. Based on the position information, the processing circuitry can calculate a relative velocity and determine a Doppler shift or carrier frequency offset in the input signal based on the relative velocity. The processing circuitry can adjust a local oscillator frequency based on a Doppler measured using the position information in an initial link acquisition phase. The processing circuitry can track the Doppler continuously over a range of tens of gigahertz accounting for Doppler phase ambiguities, and correct for a tracked Doppler shift by partially adjusting a local oscillator frequency and by correcting a residual Doppler shift digitally.