[Discuss-gnuradio] Managing Tags in Multiple Streams

[Ramazan Çetin]

Hello all,

We want to transmit two channels OFDM signal. Each channel has 500kHz 
bandwidth.

We want to connect each channel to  TAP interfaces. At the end, we have 
two OFDM receivers and two OFDM transmitters. We are getting trouble 
with putting tags these two streams (from TAP0 and TAP1). The messages 
that comes from TAP0 and TAP1 interfaces are different sized. We have 
combined these two OFDM TX paths using "Tagged Stream Mux". The 
disadvantage of this block is that it waits length tag from both of the 
inputs, so we can send data when both of the interfaces are active. But 
we should also send when one of the channels is active.

The GNU Radio FG is attached. So, how can we send multiple tagged 
streams to USRP device? Does using Tagged Stream Mux is true approach 
for this task?

You may suggest another approach.

Best regards.

Ramazan

xlating_ofdm_slave_U1_ip16.grc
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