Re: [Discuss-gnuradio] Problem post installing kit.ce/gr-lte

[Johannes Demel]

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Hi Daniele,

'MIMO TOP FLOW plots.grc' needed an update. I pushed a new version of
this flowgraph which should work now. I had to substitute some blocks.

Cheers
Johannes

On 09.10.2015 10:19, Daniele Disco wrote:
> Johannes Demel <ufcsy <at> student.kit.edu> writes:
> 
>> 
>> 
>> Hi Daniele,
>> 
>> Run this script a few times. Some of those hier blocks are
>> nested. The script doesn't care about compiling them in correct
>> order. So after 2 3 times it should have everything. Unless
>> something went wrong.
>> 
>> I recommend you open the 'top_level' flowgraphs and have a look
>> at them. The error messages tell you that some blocks are not
>> connected. You should be able to see how to connect them, though.
>> In case a block is missing, look for the corresponding hier block
>> graph and compile it in GRC. Don't forget to reload/restart GRC.
>> 
>> The whole flowgraph takes quite a lot of computational load. It
>> is intended to make it easy for users to play around with. It's
>> not so much optimized for speed. Though I'd be happy to merge
>> contributions here too. Long story short, I recommend to record
>> samples and do offline processing.
>> 
>> Cheers Johannes
>> 
> 
> Thanks Johannes for your answer.
> 
> Related to run the script several time ok, but this not solve the
> problems.
> 
> I tried to substitute the blocks missing but the same block there
> is not present. Example in "MIMO TOP FLOW plots.grc" is
> lte_mimo_pbch_demux and lte_mimo_pre_decoder What I found similar
> are lte_pbch_demux_vcvc and lte_pre_decoder_vcvc The inputs of
> these blocks are different but searching for similar meaning 
> something can be done
> 
> Looking the original flowgraph  and creating a new one the problems
> are always there.
> 
> Just to give an example the original  'MIMO TOP FLOW plots.grc'
> produce these errors: ===start errors MIMO TOP FLOW
> plots.grc============== ['grcc', 'MIMO TOP FLOW plots.grc']
>>>> Error: Block key "lte_mimo_pbch_demux" not found in Platform
>>>> - grc(GNU
> Radio Companion)
>>>> Error: Block key "lte_mimo_pbch_demux" not found in Platform
>>>> - grc(GNU
> Radio Companion)
>>>> Error: Block key "lte_mimo_pbch_demux" not found in Platform
>>>> - grc(GNU
> Radio Companion)
>>>> Error: Block key "lte_mimo_pre_decoder" not found in Platform
>>>> - grc(GNU
> Radio Companion)
>>>> Error: Block key "lte_mimo_pre_decoder" not found in Platform
>>>> - grc(GNU
> Radio Companion) Validation failed:
> 
> Block - lte_mimo_ofdm_rx_0 - LTE MIMO OFDM RX(lte_mimo_ofdm_rx): 
> Source - out1(1): Port is not connected.
> 
> Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync): Source - out1(1): Port is not connected.
> 
> Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync): Sink - in1(1): Port is not connected.
> 
> Block - pbch_layer_demapper_vcvc_1 - Layer
> demapper(lte_layer_demapper_vcvc): Sink - in(0): Port is not
> connected.
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_mimo_decode_pbch_0 - LTE MIMO Decode
> PBCH(lte_mimo_decode_pbch) Sink - in(0) ): Source IO size "4800"
> does not match sink IO size "9600".
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_mimo_estimator_0 - LTE MIMO estimator(lte_mimo_estimator) Sink
> - in(0) ): Source IO size "4800" does not match sink IO size
> "9600". ===============stop errors MIMO TOP FLOW
> plots.grc====================
> 
> A new version made by me with the blocks reported before: 
> ===========start errors MIMO TOP FLOW plots_Daniele============== 
> ['grcc', 'MIMO TOP FLOW plots_Daniele.grc'] Validation failed:
> 
> Block - pbch_layer_demapper_vcvc_1_0 - Layer
> demapper(lte_layer_demapper_vcvc): Source - out(0): Port is not
> connected.
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - cell_id(cell_id) Block -
> lte_pbch_demux_vcvc_0 - PBCH Demux(lte_pbch_demux_vcvc) Sink -
> in(0) ): No connection known for domains "gr_message", "gr_stream"
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - cell_id(cell_id) Block -
> lte_pbch_demux_vcvc_0 - PBCH Demux(lte_pbch_demux_vcvc) Sink -
> in(0) ): Source IO size "0" does not match sink IO size "9600".
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_mimo_decode_pbch_0 - LTE MIMO Decode
> PBCH(lte_mimo_decode_pbch) Sink - in(0) ): Source IO size "4800"
> does not match sink IO size "9600".
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_mimo_estimator_0 - LTE MIMO estimator(lte_mimo_estimator) Sink
> - in(0) ): Domain "gr_stream" can have only one upstream block
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_mimo_estimator_0 - LTE MIMO estimator(lte_mimo_estimator) Sink
> - in(0) ): Source IO size "4800" does not match sink IO size
> "9600".
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_pbch_demux_vcvc_0 - PBCH Demux(lte_pbch_demux_vcvc) Sink -
> cell_id(cell_id) ): No connection known for domains "gr_stream",
> "gr_message"
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out0(0) Block -
> lte_pbch_demux_vcvc_0 - PBCH Demux(lte_pbch_demux_vcvc) Sink -
> cell_id(cell_id) ): Source IO size "4800" does not match sink IO
> size "0".
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out1(1) Block -
> lte_mimo_estimator_0 - LTE MIMO estimator(lte_mimo_estimator) Sink
> - in(0) ): Domain "gr_stream" can have only one upstream block
> 
> Connection ( Block - lte_mimo_sss_sync_0 - LTE MIMO SSS
> sync(lte_mimo_sss_sync) Source - out1(1) Block -
> lte_mimo_estimator_0 - LTE MIMO estimator(lte_mimo_estimator) Sink
> - in(0) ): Source IO size "4800" does not match sink IO size
> "9600". Error during file compilation. =====stop errors MIMO TOP
> FLOW plots_Daniele==========================
> 
> Also when the ports are declared disconnected, there is a gray wire
> and is connected but is not a real connection (????). Some times
> also the port is not connected and where I have to connect that 
> port? If I are able to create the entire flow-graph the example for
> me are unnecessary
> 
> 
> And last question 'grcc LTE_flowgraph_top_level.grc' produces this
> error,
> 
>>>> Warning: This flow graph may not have flow control: no audio
>>>> or RF
> hardware blocks found. Add a Misc->Throttle block to your flow
> graph to avoid CPU congestion. Where, how, to put this Throttle and
> connect with which block/s?
> 
> 
> 
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden 
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
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