H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2286466
The present invention relates to a cellular communication system that is comprised of a plurality of radio ports that communicate over an air interface with a plurality of terminal devices, where the radio ports have asynchronous transfer mode (ATM) interfaces. A cellular switch is provided having circuit-switching fabric connected to a public switched telephone network (PSTN). A digital cellular switch (DCS) is provided which has ATM fabric, radio link protocol processors, and vocoders, where the vocoders are connected to the PSTN, and where the ATM fabric is connected to the radio ports by ATM virtual links. One or more standard hardware platforms implement ATM transport that perform a plurality of call control functions including the handling of voice and data calls from/to the radio ports. A network interworking module interfaces the DCS to a communications network. A voice call is set-up by the plurality of functions implemented on the standard hardware platforms, so that a voice communication path is established from the terminal device to the PSTN, which includes the air interface and one or more of the radio ports and ATM virtual links, the ATM fabric, and one of the vocoders. A data call is set-up by the plurality of functions implemented on the standard hardware platforms, so that a data communication path is established from the terminal device to the communications network, which includes the air interface and one or more of the radio ports and ATM virtual links, the ATM fabric, one of said radio protocol processors, and the network interworking module.
Doshi Bharat Tarachand
Dravida Subrahmanyam
Ejzak Richard Paul
Nanda Sanjiv
Sawkar Anil S.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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