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SME VoIP System Guide, Version 1.9

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Chapter: Appendix C: SME VoIP Network Planning/Optimization

105

12 Appendix C: SME VoIP Network Planning/Optimization

In this chapter, we describe SME VoIP radio network planning techniques including dimensioning, detailed

capacity and coverage planning, and network optimisation.

12.1 Network Requirements

Network requirement is essential to determine elements necessary to achieve the overall expectations of

the customer. Typical network requirements includes (but not limited to):

 The geographical area to be covered

 The type or architecture of building and/or topology, etc.

 The estimated traffic on each zone or region or building

 The blocking criteria in each traffic area.

 The relevant quality targets expected to be achieved

12.2 Deployment Considerations

The following radio considerations must be examined before deploying a SME VoIP System. These includes

(but not limited to):

Building Penetration:

When a signal strikes a building it is diffracted or absorbed; therefore to some extend the signal is reduced.

The amount of absorption is dependent of the kind of building and its environment, the amount of solid

structure. This is an important consideration in coverage planning.

Interference Sources:

Signals to receiving antenna can be weakened by virtue of interference from other signals. These signals

may be from the same network or other man-made objects. Interference sources must be identified and

avoided or minimized.

12.3 Site Planning

12.3.1 Location Probability

The quality of coverage is determined by location probability. Please see the How to Deploy SME VOIP

System manual for more information.

12.3.2 Handover Mechanics/Planning

Handsets should seamlessly move between coverage areas. In other words, handset should be able to

move in a multi-cell setup of base stations and/or repeaters from one base station to another without

terminating or causing hindrance while receiving continuous service and maintaining call-sessions in

progress.

For efficient handover of conversations between Base stations in multi-cell setup, deploy Base stations with

wide overlap between them (i.e., plan for some areas to be covered by more than one Base station).

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RTX 8630 User's Guide Page 105