-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Kevin,
this is only guesswork. Maybe occasional 'O's indicate overruns during recording. This causes the flowgraph to loose sync. Maybe some non-linearity causes it. Maybe the SNR is just not good enough. Maybe frequency sync is off by an integer multiple and thus sync fails. As far as I can tell your setup looks good. Cheers Johannes On 29.12.2015 08:32, kevin_L wrote: > Hi , johannes, thank you for your reply. I use the recorded samples > from the matlab lte system tools. It can decode the MIB > successfully. But when i use the recorded samples from the usrp > N210, ( I set the usrp N210 with the samp_rate =10M ,and connect to > a resampler with the interpolation of 3072,the decimation of > 1000,then connect to a file sink .) I use the file sink as the > input of the "lte_top_block_siso",I set the samp_rate of the > flowgraph to 30.72M,fft_len =2048 .N_rb_dl=50, but the results > shows "ofdm_lte_remove_cp_cvc_0 OUT of sync" so where the problem > locates? > > > > -- View this message in context: > http://gnuradio.4.n7.nabble.com/gr-lte-recorded-files-tp57482p57529.ht ml > > 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 > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJWgrTVAAoJEO7fmkDsqywMHwwP/1cTQvSJNPzEnkE041uqQ3Lc Dg1OLQseUq9sVipDtRJmiojrF8oEb9DftnJezQHN0B4ZYIvItuq0n5J7AFIsXnwv Yva/Kvf9m1w5e9y90JHUlxAe3b2KngVmx2W0EQsvrH1kpyw9mTc++WYtVA4qKoB7 AV8hhbPD2grUal1G5BvbVllj/PCNkrO99yRv4P/mfheZvpyTGgZsG942ryieQL4Y tY/5UFyrs5ZEhuj5346SivzMCgUWXey/nol4hz4OvvwE7R6g8we2z0KdLRKyRd63 EppZAVjr6ib/JJmSERXogeH4e9PmYtcmxRkSVn54GAamvpNbQfUxtyXPdv4VAXp0 +rpL+HNk/QCX04+OUz4ilO45+O1+LxEpS4iSidFuC5qnJw8cfmJeJfBUpc+gz1cI dTTxn+cts1vyUOUpVeAVa3pOXSPg37AQJGLKQ4BX5ZYbqgFlS6zRbJuy4qH/iksU r9oBtTSTNFTDZWX6WRN3LAZ4SLPUYdKpy/D2QPcNBZjsPKbUBer6nJJk8VYxyGi1 RJRjUbiZKiMAHMJeVViybAnfVFnymQbywdWMtr8EQcgLYTWZQdBXQVPMOWm6ELA7 PPCq2fnV+sKGE2U1WVZKsFriN6DyVNeRqVZaX0nBiIvW3W8nxaYJ1bNg8X96/gDM WSdu4CrG1DfedM0mBspE =4kmG -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
