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Fundamentals of Network Planning and Optimisation 2G/3G/4G, 2nd Edition
book

Fundamentals of Network Planning and Optimisation 2G/3G/4G, 2nd Edition

by Ajay R. Mishra
November 2018
Beginner to intermediate content levelBeginner to intermediate
440 pages
13h 21m
English
Wiley
Content preview from Fundamentals of Network Planning and Optimisation 2G/3G/4G, 2nd Edition

4Core Network Planning and Optimisation

4.1 Basics of Core Network Planning

4.1.1 Scope of Core Network Planning

The core network in GSM is basically the circuit core. In GPRS, EDGE and UMTS, it has two components, the circuit core and the packet core, which are responsible for voice and data, respectively. In GSM, core or circuit core network planning is also known as switch planning, because this planning is mainly related to the mobile switching centre or MSC, also called ‘switch’ (Figure 4.1).

Diagram of the scope of core network planning. Left box for BSS consists of BSC linked to BTS, TC, and TCSM and right box for NSS consists of MSC/VLR linked to HLR/AC/EIR, TC, and TCSM. Both linked to NMS at the bottom.

Figure 4.1 Scope of core network planning.

Core network planning in GSM consists of network elements such as MSC, VLR, HLR, AC, and EIR.

4.1.2 Elements of the Core Network

4.1.2.1 MSC/VLR

The MSC is the core elements of the network sub‐system. It is responsible for the switching of subscriber calls and thus is also known as a ‘switch’. It is also responsible for functions such as traffic management, paging, and collection of charging related information. Apart from this, the MSC also acts as an interface between the network and the networks of other operators and PSTN networks. Another important element that is hosted in an MSC is the VLR or visitor location register. The VLR contains the information on the subscribers that is handled by the MSC at a given moment. Owing to the nature of its functionality, the VLR participates in call processing and mobility management functions ...

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Publisher Resources

ISBN: 9781119331711Purchase book