By Rebecca Copeland
Concentrating on the long run community structure and its major rules, Converging NGN Wireline and cellular 3G Networks with IMS presents a entire view of the equipment, capabilities, community parts, and the interfaces between them that let the construction of a provider agnostic and entry agnostic consultation keep watch over layer according to the IMS criteria.
After an advent to IMS rules with industry developments, technological thoughts, migration concerns, and worldwide criteria, the booklet describes converged consultation regulate and multimedia dealing with with identity administration, provider profiles, and occasion and functions triggering in addition to admission approaches for various varieties of entry networks. next chapters take on the all-important features of IP charging mechanisms, service-based caliber of provider, safeguard, border regulate, and legacy companies, allowing an intensive appreciation of the entire community specifications. anywhere attainable, the writer issues out the convergence of criteria and information assorted necessities and terminology for TISPAN and 3GPP.
Delivering deep perception into the position of IMS in mounted line and cellular networks, this booklet explains the hot applied sciences from ideas to certain strategies to provide a transparent realizing of ways the subsequent new release of converged conversation may be completed with controlled caliber, safety, and chargeability.
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Additional info for Converging NGN Wireline and Mobile 3G Networks with IMS: Converging NGN and 3G Mobile
In addition, some compromises were necessary to allow for early implementation with gradual network migration. In particular, the assertion that IMS will only support IPv6 addressing had to be relaxed. 14 TISPAN definition of Core IMS. will remain in use for some years. Therefore, IPv4 interworking with IPv6 had to be worked out through Border Gateways and Network Address Translation (NAT). Chapter 2 provides further details of the 3GPP standards. 3 The TISPAN Approach TISPAN is an ETSI group that evolved from the Fixed network standards (TIPHON) to define IP standards for NGN (Next Generation Networking) and migration from Fixed Line networks.
IMS Concepts n 13 The SPDF is a logical policy decision element for service-based policy control. The SPDF makes policy decisions using policy rules defined by the network operator. The AF (Application Function), acting as a user agent, requests resources for an IMS session from the SPDF in the RACS. The SPDF chooses the local policy to be applied to the request based on the Requestor Name, Service Class, Service Priority, Reservation Class, and more. The SPDF maps the local policy into the parameters to be sent to the A-RACF (Access Resource and Admission Function) or the BGF (Border Gateway Function).
Service mobility also means receiving services when roaming to another network. Previously, service mobility has been limited. Traditional Fixed-line services are associated only with a particular circuit line. 2G Mobile phones also have services associated directly with the SIM card, not the user, and therefore offer no service mobility across devices. , personal address book). Many services might be very useful when they become available in a variety of places and terminals. For example, a Pre-pay service can apply to 2G Mobile, IMS Mobile, laptop VoIP, and even residential lines, with a single credit account.
Converging NGN Wireline and Mobile 3G Networks with IMS: Converging NGN and 3G Mobile by Rebecca Copeland