Network Design
Network planning and design is an essential process, aimed at ensuring that a new network or service meets the needs of the subscriber and operator. The process can be tailored according to each new network or service.
This is an extremely important process which must be performed before the establishment of a new telecommunications network or service.
Network planning methodology
A traditional network planning methodology involves four layers of planning, namely:
- business planning
- long-term and medium-term network planning
- short-term network planning
- operations and maintenance.
Each of these layers incorporate plans for different time horizons, i.e. the business planning layer determines the planning that the operator must perform to ensure that the network will perform as required for its intended life-span. The Operations and Maintenance layer, however, examines how the network will run on a day-to-day basis.
The network planning process begins with the acquisition of external information. This includes:
- forecasts of how the new network/service will operate;
- the economic information concerning costs; and
- the technical details of the network’s capabilities.
It should be borne in mind that planning a new network/service involves implementing the new system across the first four layers of the OSI Reference Model. This means that even before the network planning process begins, choices must be made involving protocols and transmission technologies.
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