Title:
非同期網と同期網が混在する移動通信網におけるパケットデータサービスのための移動通信システム及びハンドオーバー方法
Document Type and Number:
Japanese Patent JP4625814
Kind Code:
B2
Abstract:
Disclosed herein is a mobile communication terminal and handover method therefor, which enable handover of a mobile communication terminal that is using a packet data service or is in a dormant state in a mobile communication network in which asynchronous and synchronous networks coexist. In the handover method, if a channel is assigned between a mobile communication terminal and a synchronous mobile communication system in response to a request from an asynchronous mobile communication system as a mobile communication terminal using packet data service in the asynchronous mobile communication system moves into an area of the synchronous mobile communication system, call setup is performed. A node B of the asynchronous communication releases a connection to the mobile communication system and assigns a new mobile IP to the mobile communication terminal, thus providing continuous packet data service to the mobile communication terminal.
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Inventors:
Kim Hyun Wook
Kim Young-rak
Kim Nam Gun
Im Jung Tae
Kim Young-rak
Kim Nam Gun
Im Jung Tae
Application Number:
JP2006549119A
Publication Date:
February 02, 2011
Filing Date:
January 07, 2005
Export Citation:
Assignee:
SK TELECOM CO.,LTD.
International Classes:
H04W8/12; H04B7/26; H04W36/14; H04W88/06
Domestic Patent References:
| JP2007518344A | ||||
| JP2001186552A |
Foreign References:
| WO2003079716A1 |
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Makoto Suhara