HANDOVER IN A HYBRID COMMUNICATIONS NETWORK

Title:

HANDOVER IN A HYBRID COMMUNICATIONS NETWORK

Document Type and Number:

WIPO Patent Application WO2003096594

Kind Code:

A3

Abstract:

An apparatus and method of effecting hand-off of a mobile station (104) in a first wireless communication system, which has a first mobile switching node (204) operable with a first base station (208) and a second mobile switching node (220) operable with a second base station (224), and a second wireless communication system, is claimed. A handoff required message (404) is received at the first mobile switching node (204) and sent (408) to a second mobile switching node (220). A message (412) from the second mobile switching node is sent to request allocation for a handoff. In an embodiment, this message (412) is sent to the VLR of the second wireless communication system. In response, a handoff request acknowledge message (428) is received by the second mobile switching node (220) and sent to the first mobile switching node (204). An initial address message (432) is sent to initiate a circuit connection between the first mobile switching node (204) and the second mobile switching node (220). Then, the call is received from the first mobile switching node (204).

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Inventors:

RIMONI YORAM
GREEN MICHAEL

Application Number:

PCT/US2003/014442

Publication Date:

March 11, 2004

Filing Date:

May 09, 2003

Export Citation:

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Assignee:

QUALCOMM INC (US)

International Classes:

H04W36/14; (IPC1-7): H04J3/02; H04J3/12; H04Q7/00; H04Q7/36

Foreign References:

US5850606A	1998-12-15
US6148197A	2000-11-14
US6285880B1	2001-09-04
US6169900B1	2001-01-02
US5682380A	1997-10-28

Other References: