EPRS Reciver

Hi all,

I just started to work with GNURadio and USRP and am wondering if anyone
have already implemented a receiver for GPRS signals? I have searched
mail archives and saw some discussions in 2003 and 2009 but then it was
implemented. If it is not implemented, can someone points me to the
direction as where to start to build such a decoder? I am new to
and signal processing so any advice would be wonderful.

Thank you,

Weiqing Li