White Paper on All-IP CDMA Network ( April, 2007)

White Paper on All-IP CDMA Network ( April, 2007) - All IP...

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All IP CDMA 2000 Networks: Technology overview and deployment considerations for Service Providers By: Sh. Rajeshwar Dayal, Dir (M) & Sh.K.K.Jain, AD (M-I) Abstract This document provides a brief overview of All-IP CDMA 2000 Networks and considerations for “Migration to All-IP CDMA 2000 Network” explaining the advantages of such a network and then goes on to address some of the issues to be considered while implementation of the various phases for migration from the existing circuit switched MSC based CDMA network to packet switched (Soft switch based) All-IP CDMA 2000 Network and ultimately to IMS based Next Generation Network. It also briefly describes the systems /sub-systems of an All IP CDMA 2000 Network and lists out some of the basic overall generic requirements/features expected from any All-IP CDMA 2000 Network. 1. Introduction TEC has initiated the process of releasing the documents related to various systems /sub-systems of an All IP CDMA 2000 Network. However, to encompass different need of operators depending on their existing network architecture and techno-commercial policies, this draft document is being proposed to be circulated/released to obtain the feedback of the stakeholders ( including the Service Providers and manufacturers). 2. Why All IP CDMA Network? Some of the key issues being faced by the Service Providers using legacy core (based on circuit switched MSC based networks) are given below. a. High CAPEX and OPEX b. Expensive Transmission Network c. Slow provisioning of new services d. Complicated Network Architecture e. Distributed O & M All-IP CDMA 2000 Network can address the above issues while protecting the existing network investment and providing enough flexibility for phased migration as per the Service Providers’ existing network architecture and deployment requirements. 1
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The migration from traditional CDMA 2000 Networks based on circuit switched core to All-IP CDMA 2000 Network will allow the Service Providers and infrastructure vendors to offer more flexible services at lower costs. Integration of an All-IP CDMA 2000 network with other IP based wireless access technologies is much smoother and easy compared to integration of legacy network. Although the ITU have specified the initial framework of an All-IP network, the technology specific requirements including interoperability requirements for the next generation architecture for wireless networks are still evolving in phased manner by 3GPP2, ITU, IETF and other Standards Development Organizations. While standards for the next generation architecture for wireless networks are being evolved /finalized, it is important for Service Providers to take advantage of available, standards-based soft switch solutions in order to stay competitive in the market place. All IP architecture offers flexibility to the operators to distribute the network
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White Paper on All-IP CDMA Network ( April, 2007) - All IP...

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