Method and apparatus for handing over a subscriber unit...

Details Method and apparatus for handing over a subscriber unit... Method and apparatus for handing over a subscriber unit...

2008-07-15

2008-07-15

Feild, Joseph (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S432100, C370S331000

Reexamination Certificate

active

07400885

ABSTRACT:
The invention relates to handover of a subscriber unit (301,305) from a first cellular communication system (201) to a second cellular communication system (203). The first communication system is for example a UMTS communication system supporting a plurality of connections, and the second communication system is for example a GSM communication system supporting only a single connection. The handover comprises forming a handover connection219to the subscriber unit (301,305) through the second communication system and handing one of the connections under the first communication system over to this connection. Rather than dropping the remaining connections, they are entered into a holding state. After the handover, one of the connections on hold may be entered into an active state by associating the handover connection (219) with this connection.

REFERENCES:
patent: 5664007 (1997-09-01), Samadi et al.
patent: 5850606 (1998-12-01), Bedingfield et al.
patent: 6385451 (2002-05-01), Kalliokulju et al.
patent: 6687249 (2004-02-01), Noguera-Rodriguez et al.
patent: 6725039 (2004-04-01), Parmar et al.
patent: 6792273 (2004-09-01), Tellinger et al.
patent: 7003298 (2006-02-01), Jagadeesan
patent: 2003/0169725 (2003-09-01), Ahmavaara et al.
patent: WO 00/32001 (2000-06-01), None
patent: WO 01/65881 (2001-09-01), None
ETSI: “Handover Requirements between UMTS and GSM or other Radio Systems (3G TS 22.129 version 3.2.0)”, European Telecommunication Standard, XX, XX, Dec. 1999, pp. 1-20.

Affiliated with

Also associated with

Rating

Method and apparatus for handing over a subscriber unit... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for handing over a subscriber unit..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for handing over a subscriber unit... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2801382