Hi, I can’t help you much without the code, but did you see the example frame in Annex L of the standard?
Maybe it helps you to debug your scripts. Bastian On 06 Oct 2014, at 22:19, Ernest Szczepaniak <ernest_szczepan...@wp.pl> wrote: > Ok, so i decoded all of the payload (123 data symbols, de-interleaving every > one in receiver's loop). After Viterbi and descrambling it gives some > strange results: > > 7 of SERVICE bits are random - OK (i read in standard that those 7 bits are > 0's at the transmitter, and will set receivers descrambler to correct > initial state). > 9x0's in RESERVED field - OK. > > and now: > > FRAME CONTROL - !incorrect! > > TAIL bit's looks fine (11x0's - 6 zeros from TAIL field and probably 5 PAD > bits). > > I also checked autocorelation function of received data bits. It indicates > that there is some cyclicness in payload (every 96 bits function shows a > simple peak). Assuming that your frame consist of text:Hello world! - its 12 > characters, 8 bits each - together 96 bits repeating sequence, but cant find > Hello world text. > > Its rather imposible, that those results are correct. > > You have mentioned that i should try with some test sequence (dont have any > one). If i will try to generate it on my own, i wouldnt be sure that its > following the standard :( > > PS. > > I was also searching for 48x"1" bit broadcast adress. Found only 43x"1" in > row. Close but not the same :D > > Best, > Ernest > > > > > -- > View this message in context: > http://gnuradio.4.n7.nabble.com/GRC-3-6-802-11-a-g-test-signal-tp50585p50639.html > Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio