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Интерфейс A-bis сопоставление каналов управления с речевыми
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SanOs



Joined: 03 Sep 2009
Posts: 4

PostPosted: Mon Sep 21, 2009 11:56 am    Post subject: Reply with quote

Первичная задача: биллинг сообщений (и с учетом нестандартных сообщ-й) их просмотр с анализом, хотя есть и вторичные - типа билинга сеансов и т.д. Я понимаю что если непонятно, то можно игнорировать, так как можно дальше решать вторичные задачи на основе имеющихся данных, но почти 1 из 20 пакетов неизвестной природы (а это много - может там что то полезное).
Хотелось бы еще б литературу какую то по Abis почитать. (не могли бы посоветовать или ссылку а то в рекомендациях не так прозрачно)!?! Какой стандартный набор команд для сеанса ? И как они связаны друг с другом (где по ТЕI,Channel number, где по опциональным параметрам, может ли на один таймслот - несколько TEI (динамически назначаемые))? Как организовать точную привязку (типа как в СС7 - 1 таймслот соотв-т 1 набору CIC,OPC,DPC)?
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Joined: 30 Sep 2005
Posts: 351
Location: Санкт-Петербург

PostPosted: Wed Sep 30, 2009 3:43 pm    Post subject: Reply with quote

SanOs wrote:

Хотелось бы еще б литературу какую то по Abis почитать. (не могли бы посоветовать или ссылку а то в рекомендациях не так прозрачно)!?!


Название: GSM Networks: Protocols, Terminology, and Implementation

Автор: Heine G.

Аннотация:
Code:

This practical book provides an extremely comprehensive, up-to-date, and easy-to-understand treatment of the entire GSM network and the signaling methods of its terrestrial interfaces. You learn how to analyze network problems, what measurements you have to take to solve them, and where in a scenario you will find the desired information or parameter. The book introduces you to all the interfaces between the GSM subsystems, starting with the Abis- and Air- Interface and continuing on to VLR's, HLR's and MSC's within the Network Switching Subsystem (NSS). You learn about the various signaling standards or methods used in GSM, including TCAP and MAP and how to apply this knowledge when working with GSM networks.

A special feature of the book is its extensive glossary that explains abbreviations, terms, parameters, counters, and messages frequently encountered when working with GSM. In addition, it features numerous figures, tables, lists, statistical formulas, real-life examples, and everyday comparisons to give you a detailed reference that's quick to use and easy to understand. You get A-to-Z coverage of dozens of topics, including:

>Signaling standards like LAPD, LAPDm, SS7, SCCP, TCAP — GSM applications such as RR, MM, CC, MAP — and all the protocols used in GSM such as LAPD, ISUP, MAP, TCAP, SS7, SCCP, BSSAP, and more

>The Subscriber Identity Module (SIM) and Home Location Register (HLR)

>The OSI reference model and its applicability to GSM

>Failure resolution both in the lab and on site

>Measurements required to analyze network problems — and the dependencies of failure messages

This detailedbook is a practical handbook for engineers involved with all aspects of the GSM infrastructure — from research and development ( to installation, operation, and on-site management ( to technical support, maintenance, and testing. It is also a comprehensive self-study guide for engineers, other technical professionals, and university-level students with a basic knowledge of telecommunications who want to learn about the complex signaling architectures employed in GSM networks.


Alex Fares GSM-Network Switching Subsystem Engineering: The NSS protocol architecture

Alex Fares
GSM-Network Switching Subsystem Engineering: The NSS protocol architecture
Code:
This book GSM-Network Switching Subsystem Engineering gives the main concepts, and models of GSM Systems Engineering at core network level. It responds to GSM- NSS Engineering practice for GSM Technicians, Engineers, Practitioners, Consultants, Reserchers and Managers. The book has thoroughly covered GSM protocol architecture in the context of GSM-Network Switching Subsystem Engineering which includes: GSM Evolution, GSM Network Architecture, The OSI Reference model, The A Interface, Signalling number 7, Telephony User Part, Signalling Connection Control Part (SCCP), ISDN User Part ISUP, Transaction Capabilities Part (TCAP), Intelligent Network Applications Part (INAP), Case Studies. This book fills the gap between texts in GSM that only treat constitution of protocol architecture in telecommunications engineering in a cursory manner and texts that are too broad in the coverage of GSM Core network engineering. It will therefore be good hands on text for GSM Technicians, Engineers, Practitioners, Consultants, Reserchers and Managers.
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