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Patent Searching and Data


Title:
MOBILE TERMINAL DEVICE AND HAND-OFF METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/111750
Kind Code:
A2
Abstract:
In a packet exchange type data communication network, a mobile terminal can realize a smooth continuous communication session even during transit regardless of the performance or function of a base station. In the terminal, when an access mechanism correlated is in an active state, each of lower node interfaces (101-1 to 101-M) can obtain connection to a packet exchange type data communication network (150) by using a home address HoA.1 or a C/O address CoA. BS1. When a lower node interface (101-a) loses the connection obtained by using the C/O address CoA. BS1, a multi-access judgment unit (104) instructs a mobility support unit (102) to establish a connection between the home address HoA.1 and a home address HoA.2 or a C/O address CoA. BS2 of another lower node interface (101-b). The mobility support unit (102) establishes a connection according to the instruction from the multi-access judgment unit (104).

Inventors:
NG CHAN-WAH
TAN PEK-YEW
Application Number:
PCT/JP2004/008796
Publication Date:
December 23, 2004
Filing Date:
June 16, 2004
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NG CHAN-WAH
TAN PEK-YEW
International Classes:
H04L12/28; H04L29/06; H04W36/08; H04W36/36; H04W60/00; H04W80/04; H04W84/12; H04W88/06; H04W88/08; G06F; (IPC1-7): G06F/
Foreign References:
JP2003134140A2003-05-09
JP2002125254A2002-04-26
JPH11205372A1999-07-30
Other References:
N. MONTAVONT ET AL., MIPV6 FOR MULTIPLE INTERFACE, July 2002 (2002-07-01)
Attorney, Agent or Firm:
Washida, Kimihito (Shintoshicenter Bldg. 24-1, Tsurumaki 1-chom, Tama-shi Tokyo 34, JP)
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