On Sun, 2007-11-11 at 10:36 -0800, Eric Blossom wrote: > > is anyone already working on DECT? > > Johnathan did a bit of work a while ago. Not sure where that code > ended up. I thought it was in "limbo", but I didn't find it there.
I had started a receiver module in examples/python/dect, but didn't get very far. What's there will tune to a supplied frequency, apply the appropriate channel filter, demodulate the GMSK to (unpacked) bits, then record to a file. I was able to "grep" the bits for DECT pre-amble/synchronization codes and see them. This was to be a "service monitor" type of application, not a base station or handset. So none of the TDMA aspects were considered. We still need (ahem) mblocks and in-band signaling to properly implement either end of the protocol. A base station stack that could handle a single DECT TDMA carrier would be able to support 12 cordless phones full-duplex. Wrap it up in an Asterisk channel driver and you have a small office cordless PBX for the price of a USRP and PC, using entirely Open Source software. The DECT protocols are very well documented, and the handsets are very cheap... -- Johnathan Corgan Corgan Enterprises LLC http://corganenterprises.com _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
