Slide 2:
An inverse relationship between Sites needed (to service the demand) and the spectrum. Number of sites Spectrum used 1,000 2,000 3,000 4,000 5,000 10MHz 20MHz
Slide 3:
Number of sites Spectrum used 1,000 2,000 3,000 4,000 5,000 10MHz 20MHz B A C It’s valid to operate a network anywhere on the line – the lower the spectrum, the more sites needed.
Slide 4:
900MHz GSM Source: InterConnect Communications spectrum modelling tool With data for a country with a 6 million population. 17.5MHz
Slide 5:
900MHz UMTS Source: InterConnect Communications spectrum modelling tool With data for a country with a 6 million population. 19MHz
Slide 6:
Number of sites Spectrum used 1,000 2,000 3,000 4,000 5,000 10MHz 20MHz Cost of sites/spectrum ($M) 10 20 30 40 50 Optimum Sites Spectrum Costs are indicative and are present value lifetime costs Total Costs
Estimating the Spectrum Needed for Wireless Networks John Berry Director, Spectrum & Wireless :
Estimating the Spectrum Needed for Wireless Networks John Berry Director, Spectrum & Wireless