Telecommunications – Radiotelephone system – Programming control
Reexamination Certificate
2011-03-08
2011-03-08
Pérez-Gutiérrez, Rafael (Department: 2617)
Telecommunications
Radiotelephone system
Programming control
C455S414200, C455S416000, C455S436000, C455S437000, C455S438000, C455S439000, C455S440000, C455S441000, C455S442000, C455S443000, C455S444000, C455S518000
Reexamination Certificate
active
07904070
ABSTRACT:
The present invention relates to a method for searching and releasing an abnormal subscriber station in a wireless portable Internet system, and an apparatus using the same. The apparatus searches for an abnormal group including abnormal subscriber stations based on a ranging code provided in a periodic ranging process, and searches for an abnormal subscriber station by transmitting a connection maintenance message to subscriber stations included in the abnormal group so as to check an operation status of the respective subscriber stations. In addition, the apparatus releases a connection of an abnormal subscriber station. Therefore, waste of radio resources allocated to the abnormal subscriber station can be prevented, thereby achieving efficient resource management. Further, a secondary search process is performed only for subscriber stations included in an abnormal group, thereby preventing a system load from occurring when searching for an abnormal subscriber station.
REFERENCES:
patent: 6804509 (2004-10-01), Okon et al.
patent: 7043267 (2006-05-01), Saotome et al.
patent: 7212803 (2007-05-01), Nagasawa et al.
patent: 7599327 (2009-10-01), Zhuang
patent: 2003/0198179 (2003-10-01), Koo et al.
patent: 2004/0176094 (2004-09-01), Kim et al.
patent: 2004/0185853 (2004-09-01), Kim et al.
patent: 100194591 (1999-02-01), None
patent: 1020030058589 (2003-07-01), None
patent: 1020030064219 (2003-07-01), None
patent: 1020050063606 (2005-06-01), None
patent: 1020050079847 (2005-08-01), None
Jong-Joon Hong et al., “A Group Key Management for Real-Time Multicasting Information Security”.
Chang Sung-Cheol
Kim Eun-Kyung
Kim Kyung-Soo
Lee Sook-Jin
Electronics and Telecommunications Research Institute
Hanaro Telecom, Inc.
KT Corporation
Miah Liton
Perez-Gutierrez Rafael
LandOfFree
Method and device for searching and deallocating abnormal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for searching and deallocating abnormal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for searching and deallocating abnormal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2661217