The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1997
Filed:
Mar. 08, 1996
Nils Patrik Lundqvist, Ekero, SE;
Claes Hang.kan Andersson, Ekero, SE;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
In a mobile communication system, a method and an apparatus for handing off a mobile station from a first channel on a serving base station to a second channel on a target base station, the mobile station transmitting at a first transmission phase on the first channel, the second channel being ready to take over the communication with the mobile station transmitting at a second transmission phase. A device for determining a time offset is provided in the target base station and is adapted to tune in to the mobile station for determining, prior to a handoff, the time offset between the first transmission phase and the second transmission phase. Also, a device is provided for shifting, upon handoff, the transmission phase of the mobile station by the determined time offset relative to the first transmission phase.