... | ... | @@ -229,36 +229,6 @@ The following results can be observed: |
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![IPerf-UE.png](HowToConnectOAIENBWithOAIUEWithoutS1Interface/IPerf-UE.png)
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## Duplex and Antenna
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The picture of antenna [\[3\]][3] used for this testing and duplexer as follow:
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![USRPduplexer.png](HowToConnectOAIENBWithOAIUEWithoutS1Interface/USRPduplexer.png)
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## Bugs
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\[1\] If you encounter the following errors reported by , please switch to the svn trunk version 7763:
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```
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[PHY][I][pbch_detection] [UE0] Initial sync: starting PBCH detection (rx_offset 71032)
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Program received signal SIGILL, Illegal instruction.
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[Switching to Thread 0x7fffd7fff700 (LWP 18558)]
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multadd_real_vector_complex_scalar (x=x@entry=0xb97bc0 <filt24_0>, alpha=alpha@entry=0x7fffd7ffe1f0,
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y=y@entry=0x354d91f0, N=N@entry=24) at /home/openairlte/openair4G/openair1/PHY/TOOLS/cmult_sv.c:94
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94 alpha_r_128 = set1_int16(alpha[0]);
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```
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This is due to the machine doesn't support avx2 [\[2\]][2] and generates illegal instructions.
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EURECOM will soon introduce some new SIMD code which exploits the AVX2.
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## References
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* \[1\] https://github.com/chunyeow/openairinterface5g/commit/72a8159c067517d7a7d42659f1c36c03840f3331
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[1]: https://github.com/chunyeow/openairinterface5g/commit/72a8159c067517d7a7d42659f1c36c03840f3331
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* \[2\] https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2
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[2]: https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2
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* \[3\] http://www.ettus.com/product/details/VERT900
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[3]: http://www.ettus.com/product/details/VERT900
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## Acknowledgements
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... | ... | @@ -266,7 +236,6 @@ __This work was supported by [Telekom Research & Development Sdn. Bhd.](http://w |
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## Attachments
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* [enb.band5.tm1.usrpb210.conf](HowToConnectOAIENBWithOAIUEWithoutS1Interface/enb.band5.tm1.usrpb210.conf)
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* [ENB.log](HowToConnectOAIENBWithOAIUEWithoutS1Interface/ENB.log)
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* [eNB-noise-floor-1.png](HowToConnectOAIENBWithOAIUEWithoutS1Interface/eNB-noise-floor-1.png)
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* [IPerf-ENB.png](HowToConnectOAIENBWithOAIUEWithoutS1Interface/IPerf-ENB.png)
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... | ... | |