US 9,794,851 B2Granted

Handover with mobile relays

AssigneeFujitsu Limited

InventorsZhaojun Li, Sunil Keshavji Vadgama

Life of this patent

Estimating the term…

Loading patent…

Abstract

Providing mobility support of UEs that are served by mobile relay base stations, by providing handover of a UE for data traffic only between two mobile relay base stations. Exchanging information between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbor cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbor cell is much better than the current donor base station.

Claims1

Dependent claims

A terminal equipment in a communication system including at least one base station and a plurality of further stations, the terminal equipment comprising:

a transmitter;
and
a processor electrically coupled with the transmitter, the processor configured for:
causing an exchanging of data traffic and signaling by employing wireless links with the at least one base station and one or more further stations of the plurality of further stations, the wireless links including a first wireless link between the terminal equipment and a base station;
employing the first wireless link for control signaling between the terminal equipment and the base station;
determining when a handover is triggered for a handover of the terminal equipment from a first further station to a second further station, the first further station and the second further station from among the plurality of further stations;
performing a handover for data traffic only of the terminal equipment from the first further station to the second further station while maintaining the first wireless link with the base station for the control signaling.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/387,196Filed 21 Dec 2016 · continuation
Priority: EP 1218365510 Sep 2012
Published: US 2017/0105160 A113 Apr 2017
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04W 36/0094
Hand-off measurements: definition of hand-off measurement parameters
H04W 36/0016
For data sessions of end-to-end connection: hand-off preparation specially adapted for end-to-end data sessions
H04W 36/0058
Transmission or use of information for re-establishing the radio link: transmission of hand-off measurement information, e.g. measurement reports
H04W 36/22
Performing reselection for specific purposes: for handling the traffic

Family

PCT/EP2013/066006Parent of this continuation · filed 30 Jul 2013
Application14/638,611Parent of this continuation · filed 4 Mar 2015
Application15/098,479Parent of this continuation · filed 14 Apr 2016
US 9,344,948 B2Parent of this continuation · filed 17 May 2016
US 2017/0105160 A1Pre-grant publication · published 13 Apr 2017
US 9,532,290 B2Parent of this continuation
US 2015/0181498 A1Published application
US 2016/0227461 A1Published application
US 9,794,851 B2This patent

From the US filing history. Foreign family members aren’t listed.