Patent · US Active

Handover delay reduction using unlicensed spectrum

US11223982B2 · kind B2 · utility

1Cited by

0References

27Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Chunhui Zhang · Bissenkamp, SE
Peter Alriksson · Hörby, SE
Yusheng Liu · Lund, SE
Mai-Anh Phan · Herzogenrath, DE
David Sugirtharaj · Lund, SE
Emma Wittenmark · Lund, SE

Key dates

Filing date	Jun 13, 2018
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Aug 13, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04W36/00
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method performed by a wireless communication device for reducing handover delay, wherein the wireless communication device is arranged to operate in a cellular communication system and to operate in a cell using unlicensed spectrum. The method includes receiving a downlink, DL, signal from network node operating a neighbouring cell operating in the unlicensed spectrum, wherein the DL signal includes a discovery reference signal, DRS, subframe, storing data associated with the DRS subframe, receiving a handover command from a network node operating a serving cell where the neighbouring cell is a target cell, and performing a random access procedure for handover to the target cell. A device performing the method and a computer program for implementing the method are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.