US 10,652,846 B2 · Systems, methods and devices for cellular synchronization references

Abstract

Cellular (e.g., LTE or UMTS) and global navigation satellite system (GNSS) based technologies can provide ubiquitous and seamless synchronization solution for LTE-based vehicle to everything (V2X) or Proximity Services synchronization (ProSe) services. For example, by using joint GNSS timing references and LTE cellular network timing references for V2X or ProSe system synchronization benefits of using GNSS technologies to improve synchronization procedure for LTE based V2X or ProSe services can be enabled, including: (1) accurate and stable timing, (2) availability of a global and stable timing reference and (3) ability to propagate GNSS timing by user equipment having sufficient GNSS signal quality.

Claims16

Dependent claims

A system for wireless transmissions using a prioritized timing reference comprising:

a global navigation satellite system (GNSS) receiver;
a wireless transceiver configured to communicate with a first device;
a processor configured to:
receive a prioritized list of synchronization sources including GNSS and evolved Node B (eNB);
select a timing reference based at least in part on a ranking system of the synchronization sources;
and
synchronize transmission timing to the timing reference of the synchronization source.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/742,416Filed 25 Mar 2016 · us provisional application

Priority

24 Sep 2015

Published

US 2018/0213498 A126 Jul 2018

Granted

12 May 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 56/0015
Synchronization between nodes: one node acting as a reference for the others
H04B 7/2684
Time synchronisation: synchronisation of a mobile station with more than one base station
H04B 7/2693
Inter base stations synchronisation: centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning…
H04W 56/002
Synchronization between nodes: mutual synchronization

Systems, methods and devices for cellular synchronization references

Life of this patent

Systems, methods and devices for cellular synchronization references

Life of this patent

Abstract

Claims16