Re: [Openbts-discuss] Omni-directional vs Directional Antenna (Joel Parker)

[David B. <da...@ra...>]

OpenBTS does support closed loop timing advance control.

On Aug 1, 2012, at 7:43 AM, Eddie wrote:

> I assume that you want to connect the high gain antennas so that you can increase you range. Bear in mind that increasing you range also increases the likely hood of causing interference to a wider ‘audience’ of GSM handsets. Also, and I am not sure, as I have not delved through the OpenBTS code in any detail, but I do not know whether or not timing advance on the handset transmission have been implemented in the code as this add an additional layer of complexity to the code. If not, I assume that OpenBTS is set for timing advance of 0, i.e it assumes the GSM handset is within 550m (ish) distance from the USRP hardware.
> 

David A. Burgess, CEO
Range Networks, Inc.
San Francisco
cell +1 707 208 2622
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