Title:
マルチモード無線送受信装置を用いた、無線通信システム間での無線アクセス技術を切り換えるための方法及び装置
Document Type and Number:
Japanese Patent JP4642069
Kind Code:
B2
Abstract:
A method and system for switching a radio access technology (RAT) between wireless communication systems connected to each other while implementing different RATs with a multi-mode wireless transmit receive unit (WTRU) are disclosed. A plurality of wireless communication systems are deployed with overlapping coverage areas wherein each system implements different RATs and are connected to each other such that a service that is provided by one system may be provided through the other system. Each wireless communication system transmits an indication of the existence of an inter-working wireless communication system in a coverage area of each system. The WTRU receives the indication and information regarding the inter-working wireless communication system. The WTRU then initiates a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU received from the currently connected wireless communication system through the inter-working wireless communication system.
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Inventors:
Camel M. Shaheen
Stephan E. Terry
Brian Gregory Kielnan
Stephan E. Terry
Brian Gregory Kielnan
Application Number:
JP2007503083A
Publication Date:
March 02, 2011
Filing Date:
March 11, 2005
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04W48/18; H04W36/14; H04W48/14; H04W48/20; H04W84/12; H04W88/06; H04W92/02
Domestic Patent References:
| JP2002535902A | ||||
| JP2002503408A | ||||
| JP2000092541A | ||||
| JP2000092570A | ||||
| JP2004023768A |
Foreign References:
| WO2003103221A1 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe