On Mon, Apr 5, 2010 at 5:17 PM, <j...@es.aau.dk> wrote: > Hello > > We are at Aalborg University currently working on building a USRP1 based > testbed for OFDMA requiring FDD/full duplex as well as TDMA (using timestamp > functionality). > In an earlier post, dated 02 Mar 2009, it was mentioned that for USRP2 some > modifications had to be made for the firmware as well as host code to > support full duplex. > > We are interested in inquiring whether any changes have to be made to the > USRP1 as well, and if there there are any knowledge available to be shared > regarding the combined use of FDD and TDMA i.e full duplex as well as > timestamp functionality on the USRP1. > > Best regards > Jesper Kristensen > Aalborg University, Denmark
Hi Jesper, The USRP1 should be just fine. You will run into issues of turn-around time over the USB cable for doing the TDMA stuff and hitting the right timestamps. The other issue is to either make sure the frequency bands for the FDD are either in the bandwidth of the daughterboards if you are receiving and transmitting with just one board, otherwise, use one board to transmit and one to receive so that you don't have to retune the boards each time. Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
