Design and Implementation of a Softswitch for Third Generation Mobile All-IP Network

Feng, Vincent W.S.; Lin, Yi‐Bing; Chou, Sheng-Lin

doi:10.1007/0-306-48642-3_12

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Performance Of the Wgsn Push Mechanism1

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2004

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“…After the SIP UA is brought up, the call request from the caller is then delivered to the SIP UA following the standard SIP protocol. We note that the VoIP call model is typically handled by the SIP UAs or a call server (or softswitch) that controls the call setup process and indicates whether the called party is busy or idle [26]. The WGSN SPC is only responsible for pushing the SIP requests to the MSs where the SIP UAs are not activated.…”

Section: Performance Of the Wgsn Push Mechanismmentioning

confidence: 99%

WGSN: WLAN-based GPRS Support Node with Push Mechanism

Feng

Lin

et al. 2004

The Computer Journal

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This paper proposes wireless LAN (WLAN)-based GPRS Support Node (WGSN), as a solution for integrating Third Generation (3G) and WLAN services. We show that the 3G mechanisms can be re-used for WLAN user authentication and network access without introducing new procedures and without modifying the existing 3G network components. We describe the WGSN features and show how they are designed and implemented. To reduce the power consumption and computation complexity of a mobile station (MS), the WGSN applications may not be activated in the MS if they are not used. For an MS-terminated application, a push mechanism is implemented in WGSN, which automatically activates the application at the MS side. An analytic model is proposed to investigate the requirements on the WGSN transmission delay of the push operation. A WGSN prototype has been implemented in the

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Section: Performance Of the Wgsn Push Mechanismmentioning

confidence: 99%