Common use of Frequency Planning Clause in Contracts

Frequency Planning. The next step in the system analysis is the radio traffic design that involves the analysis of traffic distribution within the service areas and the estimation of voice channels required to support the desired system capacity. Based on the traffic projection information provided by the Buyer, the grade of service desired, and subscriber profile (Erlang loading), and other relevant information gathered by the survey teams, the PlaNET tool is used to determine traffic loading on a per-cell basis. In the PlaNET model, it is assumed that the instant of call establishment and the duration of calls follow a Poison distribution, allowing the use of Erlang B formula to relate the traffic in Erlangs to the number of channels required at the grade of service (GOS). This forms the basis of the quantity of voice channels at each facility and the requirement for capacity increase in circuits to each cell site. Starting with the inputs and results of System Propagation Prediction Analysis, this study develops and validates an initial plan of channel assignments including control and voice channels, DCCs, and SATs. An analytical review of the cell coverage and channel traffic forecasts is completed to identify the channel requirements. These requirements are then used to determine the number of channels needed at each facility and the potential requirement for further sectorization. ▇▇▇▇▇ shall then arrange a meeting between Seller engineering and engineering representatives of the adjacent markets for the purpose of coordinating frequencies at the boundary cells. ▇▇▇▇▇ is responsible for providing to Seller the agreed frequency plans for interfacing with the adjacent markets prior to final frequency plan design (paragraph 2.4). As part of the plan, a manual system-wide Co-channel Carrier-to-interference ratio (C/I) review is completed to identify areas of co-channel interference and areas of heavy traffic density where adjacent channels are assigned in physically adjacent cells. Further changes in the plan are completed to eliminate predicted problem interferences or adjacencies, or if unavoidable with the given constraints, to minimize their impact by migrating them to areas of low traffic density.