By Rogier Noldus
Книга CAMEL clever Networks for the GSM, GPRS and UMTS community CAMEL clever Networks for the GSM, GPRS and UMTS NetworkКниги Электротехника и связь Автор: Rogier Noldus Год издания: 2006 Формат: pdf Издат.:Wiley Страниц: 428 Размер: 2,7 ISBN: 0470016949 Язык: Английский0 (голосов: zero) Оценка:CAMEL (Customized software for the cellular community greater common sense) is a regular for clever Networks for cellular communications networks. it truly is presently deployed in all areas of the area, allowing cellular community operators to supply quick and effective providers to their subscribers. This publication is an in-depth and committed reference on CAMEL, taking the reader throughout the background and improvement of clever Networks and the fundamental rules of CAMEL, to the way forward for the know-how. the writer offers tips at the a variety of criteria and necessities, and explains not just how CAMEL works but in addition why it really works this fashion. useful tricks at the set up of CAMEL within the community are given through the publication. CAMEL: clever Networks for the GSM, GPRS and UMTS community: bargains a complete advisor to enforcing CAMEL. offers a whole photograph, together with the community entities & information flows concerned. Describes and explains the 4 CAMEL levels and their elements. provides an summary of the rules of clever Networks, akin to Finite country Machines, set off Detection issues, occasion Detection issues and discussion, necessary to figuring out CAMEL. Covers charging and accounting matters, and the impression of CAMEL at the charging procedure within the cellular community. offers sensible tricks over and above these pointed out within the formal standards. this article is going to be a useful source for clever community carrier common sense designers, provider community designers, community engineers, and GSM/UMTS community designers and implementers. complex scholars on classes corresponding to ‘Intelligent Networks’, ‘Value further Services’, and ‘Service Networks’ also will locate it a superb consultant to the subject.
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Additional resources for CAMEL Intelligent Networks for the GSM, GPRS and UMTS Network
The rationale is that, once the SCF has gained control over a call, it may decide how the call shall continue. g. INAP), but the behaviour of the service logic is operator-specific. 5 Basic Call State Model A fundamental concept for IN control is the basic call state model (BCSM). When a call is processed by an exchange, the call goes through a number of pre-defined phases. These phases of the call are described in the BCSM. The BCSM generally follows the ISUP signalling of a call. ISUP messages received by the exchange result in the transition from one BCSM state to another.
5 CAMEL Subsystem numbers for Entity Protocol SSN HLR VLR MSC MAP MAP MAP CAP MAP MAP MAP MAP 6 7 8 146 147 147 149 150 SCP IM-SSF SGSN GGSN 32 CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network The SSN may also be used in the STP, when performing GT translation, to derive the SPC of the destination entity. The CAP SSN is not allocated to a node but to a protocol. This SSN is used by any entity that talks CAP, such as gsmSCF, gsmSSF (in MSC, GMSC), gprsSSF (in SGSN), assisting gsmSSF, etc.
An operation may be regarded as a mechanism for one entity to start a procedure in the peer entity. For example, the gsmSSF in an MSC invokes a 6 This convention applies up to CAMEL phase 3; refer to Chapter 6 for CAMEL phase 4 subsets. Introduction to Intelligent Networks 25 CAMEL service by sending the initial DP (IDP) operation to the SCP. The sending of IDP to SCP means that the gsmSSF starts a procedure in the SCP. The SCP may, in turn, send an operation to the gsmSSF; by doing so, the SCP starts a procedure in the gsmSSF.
CAMEL Intelligent Networks for the GSM, GPRS and UMTS Network by Rogier Noldus