Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-04-26
2005-04-26
Trinh, Sonny (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S435100, C455S434000, C455S450000, C455S456100
Reexamination Certificate
active
06885865
ABSTRACT:
The mobile station visiting a location registration area at the present time plans to move to another location registration area at a future time. The mobile station sends the moving schedule information to the location management agent in a prescribed format to notify it of the scheduled destination. Receiving the moving schedule information, the location management agent learns the location registration area corresponding to the scheduled destination among the plurality of location registration areas. The location management agent sets a moving schedule flag in the location registration database in accordance with the moving schedule information with that format, which is received from the mobile station, and makes an additional registration of the moving time and the destination location registration area. Then, at the future time, it updates the location registration database, thereby making a new location registration.
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Location Management Methods for Third-Generation Mobile Systems Sami Tabbane, ESPTT 1997 IEEE, Aug. 1997 pp. 72-78, 83 & 84.
Translation for Application No.: 10-2001-0069814.
Austrian Patent Office Service and Information Sector (TRF) Search report Singapore Application No.: 200106784-2.
Ikeda Takehiro
Okajima Ichiro
Umeda Narumi
NTT DoCoMo Inc.
Nydegger Workman
Phan Huy
Trinh Sonny
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