Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-02-22
2011-02-22
Ly, Nghi H (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C370S310000, C370S328000, C370S329000, C370S330000, C370S331000
Reexamination Certificate
active
07894815
ABSTRACT:
The present invention relates to a device for providing a quality of service (QoS) of a hand-off between heterogeneous networks, and a method thereof. According to the present invention, the device includes a device for performing a QoS management function for each access system and a device for performing a QoS management function between heterogeneous access systems in a network including a plurality of interlocked access systems. The device for performing the QoS management function for each access system manages a user service session, a local QoS of the access system, and a QoS context of the service session. The device for performing the QoS management function between the heterogeneous access systems negotiates the QoS of the service session and manages the QoS context when the hand-off is performed between the heterogeneous access systems, and performs a QoS mapping operation.
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Baek Seung-Kwon
Choi Sung-gu
Kim Hyung-Sub
Kim Soo-Chang
Kim Won-Ik
Dean, Jr. Joseph
Electronics and Telecommunications Research Institute
KT Corporation
Ladas & Parry LLP
Ly Nghi H
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