mirror of https://github.com/PentHertz/srsLTE.git
Revert "Modify PUSCH power normalization"
This reverts commit a4b86e5a0a
which causes low UL throughput against Amarisoft (max MCS not achieved over RF).
See issue #3723.
We need to investigate this again and revert the revert.
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@ -133,9 +133,12 @@ int srsran_ue_ul_nr_encode_pusch(srsran_ue_ul_nr_t* q,
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// Generate signal
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srsran_ofdm_tx_sf(&q->ifft);
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// Scale iFFT output to compensate for iFFT amplification (due to FFTW implementation).
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float scaling = 1 / sqrtf(q->ifft.cfg.symbol_sz);
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srsran_vec_sc_prod_cfc(q->ifft.cfg.out_buffer, scaling, q->ifft.cfg.out_buffer, q->ifft.sf_sz);
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// Normalise to peak
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uint32_t max_idx = srsran_vec_max_abs_ci(q->ifft.cfg.out_buffer, q->ifft.sf_sz);
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float max_peak = cabsf(q->ifft.cfg.out_buffer[max_idx]);
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if (isnormal(max_peak)) {
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srsran_vec_sc_prod_cfc(q->ifft.cfg.out_buffer, 0.99f / max_peak, q->ifft.cfg.out_buffer, q->ifft.sf_sz);
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}
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// Apply frequency offset
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if (isnormal(q->freq_offset_hz)) {
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