Network Design
Network planning and design is an essential process, necessary for ensuring that a new network or service meets the needs of the subscriber and operator. Planning and design must be performed before establishing any new network or service.
Network planning methodology
Network planning methodology involves four layers of planning:
- business planning
- long-term and medium-term network planning
- short-term network planning
- operations and maintenance.
Each layer incorporates plans for different time horizons. For example, the business planning layer determines what operator planning is required to ensure required network performance throughout its intended lifespan. The operations and maintenance layer examines how the network will run on a day-to-day basis.
The network planning process begins with the acquisition of external information, including:
- forecasts of how the new network/service will operate
- the economic information concerning costs
- the technical details of the network’s capabilities
Planning any 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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