End-to-end QoS support for SIP sessions in CDMA2000* networks

Siddiqui, Mumtaz; Guo, Katherine; Rangarajan, Sampath; Paul, Sanjoy Kumar

doi:10.1002/bltj.20047

Cited by 9 publications

(9 citation statements)

References 19 publications

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“…The IP Multimedia Subsystem (IMS) framework, end-toend QoS support requires signalling, traffic regulation and resource allocation capabilities [19]. QoS signalling is used to provision and enforce QoS parameters between endpoints and is handled in the application layer, network layer and link layer.…”

Section: Cmda2000 Qos Control Planementioning

confidence: 99%

Review of quality of service performance in wireless LANs and 3G multimedia application services

Baghaei

Hunt

2004

Computer Communications

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Section: Cmda2000 Qos Control Planementioning

confidence: 99%

Review of quality of service performance in wireless LANs and 3G multimedia application services

Baghaei

Hunt

2004

Computer Communications

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“…In real network systems, the Interserv over DiffServ model can be implemented in many ways; for example, Multiprotocol Label Switching (MPLS) technology is one of the best ways to implement the DiffServ architecture in core networks, while a Pointto-Point Protocol (PPP) connection over a generic route encapsulation (GRE) tunnel is used for the QoS support in CDMA2000 access networks [36]. Regardless of the transport technologies used, the fundamental mechanisms in this IntServ over DiffServ model (e.g., the combined CAC, the gate, and policy control) can easily be implemented with them.…”

Section: End-to-end Qos Control Mechanismmentioning

confidence: 99%

A SIP-enabled all-IP architecture for converged next-generation networks

Sun¹,

Joseph²,

Magee³

et al. 2004

Bell Labs Tech. J.

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“…The primary method currently used to assure voice quality is over-engineering of the transport network. While this method can be effective, its use is only a stopgap measure until more effective quality-ofservice control techniques are standardized and deployed [15].…”

Section: Signaling Transport Issuesmentioning

confidence: 99%

Issues in supporting multimedia services in SIP networks with mixed endpoint types

et al. 2004

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The evolution from traditional circuit-based networks to packet-based networks is a salient feature of today's telecommunications industry. As IntroductionPacket networks based on Session Initiation Protocol (SIP) and Internet Protocol (IP) are showing great promise for the telecommunications industry. Industry analysts believe this new technology will enable a large number of new revenue-generating services, reduce the cost of operating a network, and revolutionize the nature of telecommunications. As SIP networks mature to support mixed endpoint types and replace existing portions of the public switched telephone network (PSTN), interesting issues arise relating to interoperability among the various endpoints.This paper begins with a discussion of the various endpoint types that may coexist in a SIP-based service network. It then explores some of the issues that surface when interoperating between mixed endpoint types. The issues discussed include interworking between ISDN User Part (ISUP) and SIP, call progress handling and early media, media transport, and signaling transport. Endpoint TypesSeveral different types of endpoints (e.g., native SIP endpoints, gateways to PSTN endpoints, transit nodes, mobile switching centers [MSCs], and application servers) may coexist in a SIP-based network. Native SIP endpoints use SIP to set up call sessions; gateways to PSTN endpoints provide access to the Bell Labs Technical Journal 9(3), 183-197 (2004) Native SIP EndpointsA native SIP endpoint is an endpoint that uses SIP signaling to establish a call session. SIP signaling is used to create, modify, and terminate multimedia sessions. Networks that support native SIP endpoints must make allowance for a number of characteristics common to such endpoints. For example, native SIP endpoints use a uniform resource identifier (URI) and a dynamic addressing scheme that requires domain name server (DNS) resolution. They also support a wide variety of codec types. Finally, they are not homogeneous; they may have a variety of capabilities and user interfaces that can be used to establish sessions. For example, when a callee is being alerted, a native SIP endpoint with a graphical user interface (GUI) may display a message or a picture of a phone ringing, while native SIP endpoints lacking such an interface may simply provide a local ringing tone, as most existing SIP endpoints do. Because of such differences, the progress of a call is communicated by having a terminating SIP endpoint generate a SIP signaling message and send it out-of-band to the originating SIP endpoint. This allows the originating endpoint to provide distinct behavior based on its capabilities; for example, an endpoint with a GUI may show a picture of a phone ringing instead of providing an audible ringing tone. SIP endpoints typically provide call progress indication using SIP provisional messages out-of-band.A preconditions feature can be used to minimize ghost rings to the originator of a session. (The term "ghost rings" refers to an immediate alert that ...

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End-to-end QoS support for SIP sessions in CDMA2000* networks

Abstract: With the increasing demand for wireless packet data services, thirdgeneration (3G)

Cited by 9 publications

References 19 publications

Review of quality of service performance in wireless LANs and 3G multimedia application services

Review of quality of service performance in wireless LANs and 3G multimedia application services

A SIP-enabled all-IP architecture for converged next-generation networks

Issues in supporting multimedia services in SIP networks with mixed endpoint types

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