Eband A technical overview Future Wireless Technologies Forum

E-band: A technical overview Future Wireless Technologies Forum

2 E Band Paving the road to ubiquitous fibre access Graham Beneke - Multisource Telecoms (Pty) Ltd

Spectrum Management 3 Preventing and mitigating interference Graham Beneke - Multisource Telecoms (Pty) Ltd

E band becomes viable 4 Advances in semiconductor device technology, resulting in commercially-available E-band cost -effective MMICs. Increased congestion in the microwave bands (6 -38 GHz) Unprecedented need for high capacity in mobile networks Graham Beneke - Multisource Telecoms (Pty) Ltd

Performance 5 1 Gbps @ 5 km � 99. 9% availability 1 Gbps @ 1, 5 km � 99. 99% availability (South African weather) Graham Beneke - Multisource Telecoms (Pty) Ltd

Performance (2) 6 Less impacted by fog / dust / smog than FSO Front-To-Back ratio of more than 50 d. B Beamwidth <1 degree Wide channels for high capacity Spectral / Channel reuse in close proximity Graham Beneke - Multisource Telecoms (Pty) Ltd

Technical Challenges 7 Trade offs between � Spectral efficiency and radio complexity � Power consumption and bandwidth � Modulation scheme and distance � Ultimately… COST Graham Beneke - Multisource Telecoms (Pty) Ltd

Pseudo-Light Licensing Works 8 Multiple 17 GHz links � Adjacent on highsite � Channel re-use within 10 degrees � Informal registration with distributor � Fails when other vendor equipment is deployed BUT interference issues mutually resolved Graham Beneke - Multisource Telecoms (Pty) Ltd

United States Model 9 71 -76 GHz & 81 -86 GHz No mandatory channelisation Feasible for wide-band, simple modulation Channels of 1+ GHz Graham Beneke - Multisource Telecoms (Pty) Ltd

European Model 10 19 channels per band � 71 -76 GHz & 81 -86 GHz � 250 MHz each � 62. 5 MHz sub-channels Encourage spectral efficiency Graham Beneke - Multisource Telecoms (Pty) Ltd

Light Licensing 11 Administrative Incentive Pricing � Channel size � Distance � Regional demand ‘light license factor’: approx x 0. 1 or x 0. 05 1 Gbps @ 1 km must be <R 5000 pm � Compete with typical dark fibre costs Graham Beneke - Multisource Telecoms (Pty) Ltd

Light Licensing (2) 12 No regulator input for registration Initially – no automated radio planning Simple GIS database Flexible billing (monthly & automated) Order of application/registration No block assignments, all links registered Graham Beneke - Multisource Telecoms (Pty) Ltd

Graham Beneke - Multisource Telecoms (Pty) Ltd Multisource Thanks! 13

Questions ? 14 Graham Beneke graham@multisource. co. za http: //www. multisource. co. z a Graham Beneke - Multisource Telecoms (Pty) Ltd