US 2022/0069901 A1 · MECHANISMS FOR DOPPLER SHIFT INDICATION AND HANDLING

Abstract

Doppler pre-compensated control and data signal(s) generated using first and second Doppler pre-compensation patterns, respectively, are transmitted. A signal indicating the Doppler pre-compensation patterns is transmitted. The Doppler pre-compensated control signals comprise synchronization signals, system information blocks (SIBs), a radio resource control (RRC) message, or a physical downlink control channel (PDCCH), and the Doppler pre-compensated data signals comprise a physical downlink shared channel (PDSCH). The signal indicating the Doppler pre-compensation patterns comprises one of an RRC message or a PDCCH, and may indicate absolute Doppler values or a difference between Doppler values. The PDCCH may indicate a time offset between the PDCCH PDSCH.

Claims20

Dependent claims

A user equipment (UE), comprising:

a transceiver configured to
receive one or more Doppler pre-compensated control signals generated by performing Doppler pre-compensation on control signals using a first of multiple Doppler pre-compensation patterns,
receive a signal indicating the Doppler pre-compensation patterns, and
receive a Doppler pre-compensated data signal generated by performing Doppler pre-compensation on a data signal using a second of the multiple Doppler pre-compensation patterns;
and
a processor coupled to the transceiver, the processor configured to demodulate and decode the Doppler pre-compensated data signal based on the Doppler pre-compensation patterns.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/129,672Filed 21 Dec 2020

Priority

3 Sep 2020

Published

3 Mar 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04B 7/18513
Systems using a satellite or space-based relay: transmission in a satellite or space-based system
H04B 7/18539
Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service: arrangements for managing radio, resources,…
H04B 7/18543
Arrangements for managing radio, resources, i.e. for establishing or releasing a connection: for adaptation of transmission parameters, e.g. power…
H04B 7/1855
For geolocalisation of a station: using a telephonic control signal, e.g. propagation delay variation, Doppler frequency variation, power…

Mechanisms for doppler shift indication and handling

Life of this patent

Mechanisms for doppler shift indication and handling

Life of this patent

Abstract

Claims20