Basic Services

All activities that may be done in the GSM network, such as establishing a voice call, establishing a data call, sending a short message, etc., are classified as basic services. In order for a subscriber to use a GSM basic service, she must have a subscription...

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Identifiers in the GSM Network

GSM uses several identifiers for the routing of calls, identifying subscribers (e.g. for charging), locating the HLR, identifying equipment, etc. Some of these identifiers play an important role for CAMEL. 1.4.1 International Mobile Subscriber Identity The...

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Mobile Station

The MS, i.e. the GSM handset, is logically built up from the following components:• mobile equipment (ME) – this is the GSM terminal, excluding the SIM card;• subscriber identification module (SIM) – this is the chip embedded in the SIM card that identifiesa...

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GSM Mobility

Roaming with GSM is made possible through the separation of switching capability and subscription data. A GSM subscriber has her subscription data, including CAMEL data, permanently registered in the HLR in her HPLMN. The GSM operator is responsible...

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Signalling in GSM

The various entities in the GSM network are connected to one another through signalling networks. Signalling is used for example, for subscriber mobility, subscriber registration, call establishment, etc. The connections to the various entities are known...

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PLMN,HPLMN,VPLMN,IPLMN,

Home PLMN (HPLMN) – the HPLMN is the GSM network that a GSM user is a subscriber of.That implies that GSM user’s subscription data resides in the HLR in that PLMN. The HLRmay transfer the subscription data to a VLR (during registration in a PLMN) or...

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Msc,Ran,vlr,gmsc,hlr,cn,auc,bss,ms introduction

MSC – the mobile service switching centre (MSC) is the core switching entity in the network. The MSC is connected to the radio access network (RAN); the RAN is formed by the BSCs and BTSs within the Public Land Mobile Network (PLMN). Users of the GSM...

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MSC

• MSC – the mobile service switching centre (MSC) is the core switching entity in the network. The MSC is connected to the radio access network (RA...

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Mobile Wireless Home Agent Feature for IOS

This chapter discusses concepts related to Quality of Service on the Cisco Mobile Wireless Home Agent, and provides details about how to configure this feature. This chapter includes the following section...

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Selective FA Revocation

In a 3GPP2 environment, when a subscriber roams between their service provider’s network and anotherpartner service provider’s network, the PDSN gateway sends a Resource Revocation message to theHome Agent to remove the subscriber. This causes...

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