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公开(公告)号：JPH1070753A
公开(公告)日：1998-03-10
申请号：JP8924597
申请日：1997-04-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TARACHAND , DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , NANDA SANJIV , SAWKAR ANIL S , TREVENTI PHILIP ANDREW
IPC: H04W84/02 , H04J3/00 , H04M3/00 , H04Q3/00 , H04Q11/04 , H04W88/18 , H04Q7/22 , H04L12/28 , H04Q7/24 , H04Q7/26 , H04Q7/30
Abstract: PROBLEM TO BE SOLVED: To provide system introduction with flexibility by raising and expanding an architecture stepwise while reutilizing many of existing voice communication infra as they are at the time replacing a cellular communication system based on channels/packets with a system capable of handling data. SOLUTION: The introduction is desirably performed through four stages. In a first stage, a conventional cellular exchanging device 10 is connected to a radio base station 12 and a public exchange telephone network and achieves a standard digital exchange function and a voice call control processor 28 performs call control and charge management. Also, a data digital cellular (data DC) exchanging device 46 is connected to the public exchange telephone network and a public exchange packet data network and achieves an ATM exchange function and a data call control processor 48 performs the call control and the charge management. The exchanging devices 10 and 46 are connected by a converter 66 front a channel packet to ATM and the mutual exchange connection of a call is performed. In a second stage, the processors 28 and 48 are integrated. In a third stage, the respective radio base stations are unitarily controlled and managed under an ATM exchange basic structure 50.
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公开(公告)号：CA2199763A1
公开(公告)日：1997-10-10
申请号：CA2199763
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TARACHAND , DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , NANDA SANJIV , SAWKAR ANIL S , TREVENTI PHILIP ANDREW
Abstract: Four stages of digital cellular architecture are presented which reuse much of the existing voice infrastructure while allowing graceful introduction of data and integrated voice/data services over industry standard, low cost platforms. First, a separate ATM-based infrastructure (46) is introduced that supports data services. A new data call control is introduced on industry standard hardware platforms using object oriented and modular programming. Second, ATM is introduced at radio ports (68) and call control functions are migrated to the new ATM-based call control platforms (72, 74). Third, vocoders (76) are introduced at the DCS. Fourth, the cellular functions of the legacy cellular switch (10) are phased out and replaced by the ATM-based target architecture.
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公开(公告)号：CA2286466C
公开(公告)日：2000-10-10
申请号：CA2286466
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , TREVENTI PHILIP ANDREW , NANDA SANJIV , SAWKAR ANIL S , DOSHI BHARAT TARACHAND
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：CA2286470C
公开(公告)日：2002-07-23
申请号：CA2286470
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TARACHAND , NANDA SANJIV , EJZAK RICHARD PAUL , DRAVIDA SUBRAHMANYAM , TREVENTI PHILIP ANDREW , SAWKAR ANIL S
Abstract: The present invention relates to a cellular communication system that is comprised of a plurality of base stations and 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 and vocoders, where the base stations are connected to the circuit-switching fabric by first communications links, and where the circuit-switching fabric is also connected to a public switched telephone network (PSTN). A cellular call control processor is associated with the cellular switch, that handles a voice call routed through the cellular switch. A digital cellular switch (DCS) having ATM fabric and radio link protocol processors is also provided, where the circuit switching fabric is connected to the ATM fabric by a second communications link via a converter that converts between the transmission format of the first communications links and ATM, the ATM fabric being 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 data calls from/to the base stations and radio ports. A network interworking module interfaces the DCS toa communications network.
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公开(公告)号：CA2199763C
公开(公告)日：2000-10-17
申请号：CA2199763
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SAWKAR ANIL S , TREVENTI PHILIP ANDREW , DOSHI BHARAT TARACHAND , DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , NANDA SANJIV
Abstract: Four stages of digital cellular architecture are presented which reuse much of the existing voice infrastructure while allowing graceful introduction of data and integrated voice/data services over industry standard, low cost platforms. First, a separate ATM-based infrastructure is introduced that supports data services. A new data call control is introduced on industry standard hardware platforms using object oriented and modular programming. Second, ATM is introduced at radio ports and call control functions are migrated to the new ATM-based call control platforms. Third, vocoders are introduced at the DCS. Fourth, the cellular functions of the legacy cellular switch are phased out and replaced by the ATM-based target architecture.
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公开(公告)号：MX9702520A
公开(公告)日：1997-10-31
申请号：MX9702520
申请日：1997-04-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TERACHAND , DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , NANDA SANJIV , SAWKAR ANIL , TREVENTI PHILIP ANDREW
Abstract: Cuatro etapas de arquitectura celular digital se presentan que reutilizan gran parte de la infraestructura de voz existente mientras que permite introduccion elegante de datos de servicio integrados de voz/datos sobre plataformas de bajo costo estándar en la industria. Primero, se introduce una infraestructura basada en ATM separada que soporta servicios de datos. Se introduce un nuevo control de llamada de datos en plataformas de equipo físico estándar industrial, utilizando programacion modular y orientada de objetos. En segundo, ATM se introduce en puertos de radio y funciones de control de llamada se migran a las nuevas plataformas de control de llamada basadas en ATM. En tercer lugar, se introducen codificadores de voz en DCS. En cuarto lugar, las funciones celulares del conmutador celular legacy se separan en fase y reemplazan por la arquitectura objetivo basada en ATM.
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公开(公告)号：CA2286470A1
公开(公告)日：1997-10-10
申请号：CA2286470
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： TREVENTI PHILIP ANDREW , DOSHI BHARAT TARACHAND , NANDA SANJIV , SAWKAR ANIL S , DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL
Abstract: The present invention relates to a cellular communication system that is comprised of a plurality of base stations and 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 and vocoders, where the base stations are connected to the circuit-switching fabric by first communications links, and where the circuit-switching fabric is also connected to a public switched telephone network (PSTN). A cellular call control processor is associated with the cellular switch, that handles a voice call routed through the cellular switch. A digital cellular switch (DCS) having ATM fabric and radio link protocol processors is also provided, where the circuit switching fabric is connected to the ATM fabric by a second communications link via a converter that converts between the transmission format of the first communications links and ATM, the ATM fabric being 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 data calls from/to the base stations and radio ports. A network interworking module interfaces the DCS to a communications network.
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公开(公告)号：CA2286466A1
公开(公告)日：1997-10-10
申请号：CA2286466
申请日：1997-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAVIDA SUBRAHMANYAM , EJZAK RICHARD PAUL , TREVENTI PHILIP ANDREW , NANDA SANJIV , SAWKAR ANIL S , DOSHI BHARAT TARACHAND
Abstract: Four stages of digital cellular architecture are presented which reuse much of the existing voice infrastructure while allowing graceful introduction of data and integrated voice/data services over industry standard, low cost platforms. First, a separate ATM-based infrastructure (46) is introduced that supports data services. A new data call control is introduced on industry standard hardware platforms using object oriented and modular programming. Second, ATM is introduced at radio ports (68) and call control functions are migrated to the new ATM-based call control platforms (72, 74). Third, vocoders (76) are introduced at the DCS. Fourth, the cellular functions of the legacy cellular switch (10) are phased out and replaced by the ATM-based target architecture.
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