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fix in PDCCH for Alamouti coding

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This commit is contained in:
Florian Kaltenberger
2016-08-19 11:23:13 +02:00
parent 786972a937
commit 4891d600c8
1 changed files with 4 additions and 5 deletions
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openair1/PHY/LTE_TRANSPORT/dci.c
+4 -5
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@@ -2086,7 +2086,6 @@ uint8_t generate_dci_top(uint8_t num_ue_spec_dci,
frame_parms, frame_parms,
txdataF, txdataF,
subframe); subframe);
wbar[0] = &wbar0[0]; wbar[0] = &wbar0[0];
wbar[1] = &wbar1[0]; wbar[1] = &wbar1[0];
y[0] = &yseq0[0]; y[0] = &yseq0[0];
@@ -2190,15 +2189,15 @@ uint8_t generate_dci_top(uint8_t num_ue_spec_dci,
LOG_I(PHY," PDCCH Modulation (TX diversity): REG %d\n",i>>2); LOG_I(PHY," PDCCH Modulation (TX diversity): REG %d\n",i>>2);
#endif #endif
// first antenna position n -> x0 // first antenna position n -> x0
((int16_t*)&y[0][i])[0] = (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK; ((int16_t*)&y[0][i])[0] = (*e_ptr==2) ? 0 : (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK;
e_ptr++; e_ptr++;
((int16_t*)&y[0][i])[1] = (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK; ((int16_t*)&y[0][i])[1] = (*e_ptr==2) ? 0 : (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK;
e_ptr++; e_ptr++;
// second antenna position n -> -x1* // second antenna position n -> -x1*
((int16_t*)&y[1][i])[0] = (*e_ptr == 1) ? gain_lin_QPSK : -gain_lin_QPSK; ((int16_t*)&y[1][i])[0] = (*e_ptr==2) ? 0 : (*e_ptr == 1) ? gain_lin_QPSK : -gain_lin_QPSK;
e_ptr++; e_ptr++;
((int16_t*)&y[1][i])[1] = (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK; ((int16_t*)&y[1][i])[1] = (*e_ptr==2) ? 0 : (*e_ptr == 1) ? -gain_lin_QPSK : gain_lin_QPSK;
e_ptr++; e_ptr++;
// fill in the rest of the ALAMOUTI precoding // fill in the rest of the ALAMOUTI precoding