The Operation and Support System
The operations and maintenance center (OMC) is connected to all equipment in the switching system and to the BSC. The implementation of OMC is called the operation and support system (OSS). The OSS is the functional entity from which the network operator monitors and controls the system. The purpose of OSS is to offer the customer cost-effective support for centralized, regional, and local operational and maintenance activities that are required for a GSM network. An important function of OSS is to provide a network overview and support the maintenance activities of different operation and maintenance organizations.
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| GSM Operation and Support System (OSS) |
Here are some of the OMC functions:
* Administration and commercial operation (subscription, end terminals, charging and statistics).
* Security Management.
* Network configuration, Operation and Performance Management.
* Maintenance Tasks.
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| GSM Architecture and Definitions |
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| GPRS (General Packet Radio Services) |
GPRS General Packet Radio Services
GPRS is a data network that overlays a second-generation GSM network. This data overlay network provides packet data transport at rates from 9.6 to 171 kbps. Additionally, multiple users can share the same air-interface resources simultaneously.
GPRS attempts to reuse the existing GSM network elements as much as possible, but to effectively build a packet-based mobile cellular network, some new network elements, interfaces, and protocols for handling packet traffic are required.
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| GSM Architecture and Definitions |
External Networks
PSTN: Public Switched Telephone Network
ISDN: Integrated Services Digital Network
PDN: Packet Data Network
Refferance:
* Alcatel-Lucent
* Private Line
* Tutorials Point
* SS7 Training
