Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2008-05-13
2008-05-13
Rao, Seema S. (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S400000
Reexamination Certificate
active
07372838
ABSTRACT:
A GPRS system having multiple GGSNs connected to a public network, for providing a packet-based mobile service, comprises: an SGSN for controlling a connection operation according to a session request of a mobile terminal for receiving the packet-based mobile service, and transmitting a packet according to a connected session; a multiple GGSN unit including a plurality of sub GGSNs, selected by the SGSN according to a session request by the mobile terminal, for transmitting and receiving packets; a DNS for storing DNS names and IP information in the GGSNs of the multiple GGSN unit according to selection of the SGSN; an operator network for managing the DNS and communication; and an edge router for performing packet routing between the GPRS system and the public network.
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Cho Choong-Ho
Kim Dae-Sik
Lee Seung-Que
Park Nam-Hoon
Blakely , Sokoloff, Taylor & Zafman LLP
Davenport Mon Cheri S
Electronics and Telecommunications Research Institute
Rao Seema S.
LandOfFree
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