[Openbts-discuss] Bandwidth requirements for an openBTS system

[Dean E. <dea...@vo...>]

Hi all,

I am in the middle of a spectrum licence application to Ofcom, the UK regulators, as I would like to build an openBTS powered cell system as part of a proof of concept system.

The cell will be based on an Ettus USRP 1 with RF daughterboard and driven by a TCXO external clock, and with power output limited to 2.5mW ERP (a range of a few feet, which is all I need for now).

Part of my licence application requires me to let Ofcom know how much bandwidth I'll be utilising. I need to therefore calculate the b/w requirement for a system that would handle, say, 4 simultaneous connections from cellphone devices (calls and registrations).

I'm not sure of the bandwidth requirement per phone/call in GSM-land, or any potential pitfalls (like getting the wrong thing to work on a standard dual-band or tri-band phone).

Is there anyone that could help me with that bandwidth calculation ?

Many thanks,


Dean