hi, i am trying to use the flowgraph "Core elements of an OFDM transmitter" in the ofdm documentation which is there at Gnuradio-3.7 API. i got the following error.
FATAL: Missing a required length tag on port 0 at item #0 thread[thread-per-block[1]: <block ofdm_carrier_allocator_cvc (14)>]: Missing length tag. how to overcome this.. what to mention in length tag key in ofdm channel allocator.. by default we have "packet_len" in that field. thanks, lingeswar
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