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Solved RI reporting bug and improved PUSCH log trace

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master
Xavier Arteaga 7 years ago
parent ec254a9971
commit 7a840d9f59
4 changed files with 79 additions and 34 deletions
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10
lib/src/phy/phch/sch.c
Unescape Escape View File

@ -758,16 +758,10 @@ int srslte_ulsch_uci_encode(srslte_sch_t *q,
uint32_t nb_q = cfg->nbits.nof_bits;
uint32_t Qm = cfg->grant.Qm;
// Encode RI if CQI enabled
if (uci_data.uci_ri_len > 0 || uci_data.uci_cqi_len > 0) {
/* If no RI is reported set it to zero as specified in 3GPP 36.213 clause 7.2.1 */
if (uci_data.uci_ri_len == 0) {
uci_data.uci_ri_len = 1;
uci_data.uci_ri = 0;
}
if (uci_data.uci_ri_len > 0) {
float beta = beta_ri_offset[cfg->uci_cfg.I_offset_ri];
if (cfg->cb_segm.tbs == 0) {
beta /= beta_cqi_offset[cfg->uci_cfg.I_offset_cqi];
beta /= beta_cqi_offset[cfg->uci_cfg.I_offset_cqi];
}
uint8_t ri[2] = {uci_data.uci_ri, 0};
ret = srslte_uci_encode_ack_ri(cfg, ri, uci_data.uci_ri_len, uci_data.uci_cqi_len, beta, nb_q/Qm, q->ack_ri_bits, true);

54
lib/src/phy/phch/uci.c
Unescape Escape View File

@ -581,7 +581,7 @@ static uint32_t encode_ri_ack(uint8_t data[2], uint32_t data_len, srslte_uci_bit
while(i < Qm) {
q_encoded_bits[i++] = UCI_BIT_PLACEHOLDER;
}
} else {
} else if (data_len == 2) {
q_encoded_bits[i++] = data[0] ? UCI_BIT_1 : UCI_BIT_0;
q_encoded_bits[i++] = data[1] ? UCI_BIT_1 : UCI_BIT_0;
while(i<Qm) {
@ -638,6 +638,58 @@ static void decode_ri_ack_2bits(int16_t *q_bits, uint8_t *c_seq, srslte_uci_bit_
data[2] -= q2 + q5;
}
/* Encode UCI HARQ/ACK bits as described in 5.2.2.6 of 36.212
* Currently only supporting 1-bit HARQ
*/
int srslte_uci_encode_ack(srslte_pusch_cfg_t *cfg, uint8_t acks[2], uint32_t nof_acks,
uint32_t O_cqi, float beta, uint32_t H_prime_total,
srslte_uci_bit_t *ack_bits)
{
if (beta < 0) {
fprintf(stderr, "Error beta is reserved\n");
return -1;
}
uint32_t Qprime = Q_prime_ri_ack(cfg, nof_acks, O_cqi, beta);
srslte_uci_bit_type_t q_encoded_bits[18];
uint32_t nof_encoded_bits = encode_ri_ack(acks, nof_acks, q_encoded_bits, cfg->grant.Qm);
for (uint32_t i=0;i<Qprime;i++) {
uci_ulsch_interleave_ack_gen(i, cfg->grant.Qm, H_prime_total, cfg->nbits.nof_symb, cfg->cp, &ack_bits[cfg->grant.Qm*i]);
uci_ulsch_interleave_put(&q_encoded_bits[(i*cfg->grant.Qm)%nof_encoded_bits], cfg->grant.Qm, &ack_bits[cfg->grant.Qm*i]);
}
return (int) Qprime;
}
/* Encode UCI RI bits as described in 5.2.2.6 of 36.212
* Currently only supporting 1-bit RI
*/
int srslte_uci_encode_ri(srslte_pusch_cfg_t *cfg,
uint8_t ri,
uint32_t O_cqi, float beta, uint32_t H_prime_total,
srslte_uci_bit_t *ri_bits)
{
// FIXME: It supports RI of 1 bit only
uint8_t data[2] = {ri, 0};
if (beta < 0) {
fprintf(stderr, "Error beta is reserved\n");
return -1;
}
uint32_t Qprime = Q_prime_ri_ack(cfg, 1, O_cqi, beta);
srslte_uci_bit_type_t q_encoded_bits[18];
uint32_t nof_encoded_bits = encode_ri_ack(data, 1, q_encoded_bits, cfg->grant.Qm);
for (uint32_t i=0;i<Qprime;i++) {
uci_ulsch_interleave_ri_gen(i, cfg->grant.Qm, H_prime_total, cfg->nbits.nof_symb, cfg->cp, &ri_bits[cfg->grant.Qm*i]);
uci_ulsch_interleave_put(&q_encoded_bits[(i*cfg->grant.Qm)%nof_encoded_bits], cfg->grant.Qm, &ri_bits[cfg->grant.Qm*i]);
}
return (int) Qprime;
}
/* Encode UCI ACK/RI bits as described in 5.2.2.6 of 36.212
* Currently only supporting 1-bit RI
*/

34
srsenb/src/phy/phch_worker.cc
Unescape Escape View File

@ -473,13 +473,11 @@ int phch_worker::decode_pusch(srslte_enb_ul_pusch_t *grants, uint32_t nof_pusch)
// Configure PUSCH CQI channel
srslte_cqi_value_t cqi_value = {0};
bool cqi_enabled = false;
#if 0
if (ue_db[rnti].cqi_en && ue_db[rnti].ri_en && srslte_ri_send(ue_db[rnti].pmi_idx, ue_db[rnti].ri_idx, tti_rx) ) {
uci_data.uci_ri_len = 1; /* Asumes only 1 bit for RI */
ri_enabled = true;
} else
#endif
if (ue_db[rnti].cqi_en && srslte_cqi_send(ue_db[rnti].pmi_idx, tti_rx)) {
uci_data.ri_periodic_report = true;
} else if (ue_db[rnti].cqi_en && srslte_cqi_send(ue_db[rnti].pmi_idx, tti_rx)) {
cqi_value.type = SRSLTE_CQI_TYPE_WIDEBAND;
cqi_enabled = true;
if (ue_db[rnti].dedicated.antenna_info_explicit_value.tx_mode == LIBLTE_RRC_TRANSMISSION_MODE_4) {
@ -588,19 +586,19 @@ int phch_worker::decode_pusch(srslte_enb_ul_pusch_t *grants, uint32_t nof_pusch)
exit(-1);
}
*/
log_h->info_hex(grants[i].data, phy_grant.mcs.tbs/8,
"PUSCH: rnti=0x%x, prb=(%d,%d), tbs=%d, mcs=%d, rv=%d, snr=%.1f dB, n_iter=%d, crc=%s%s%s%s%s%s\n",
rnti, phy_grant.n_prb[0], phy_grant.n_prb[0]+phy_grant.L_prb,
phy_grant.mcs.tbs/8, phy_grant.mcs.idx, grants[i].grant.rv_idx,
snr_db,
srslte_pusch_last_noi(&enb_ul.pusch),
crc_res?"OK":"KO",
(acks_pending[0] || acks_pending[1])?", ack=":"",
(acks_pending[0])?(uci_data.uci_ack?"1":"0"):"",
(acks_pending[1])?(uci_data.uci_ack_2?"1":"0"):"",
uci_data.uci_cqi_len>0?cqi_str:"",
uci_data.uci_ri_len>0?(uci_data.uci_ri?", ri=0":", ri=1"):"",
timestr);
log_h->info_hex(grants[i].data, phy_grant.mcs.tbs / 8,
"PUSCH: rnti=0x%x, prb=(%d,%d), tbs=%d, mcs=%d, rv=%d, snr=%.1f dB, n_iter=%d, crc=%s%s%s%s%s%s\n",
rnti, phy_grant.n_prb[0], phy_grant.n_prb[0] + phy_grant.L_prb,
phy_grant.mcs.tbs / 8, phy_grant.mcs.idx, grants[i].grant.rv_idx,
snr_db,
srslte_pusch_last_noi(&enb_ul.pusch),
crc_res ? "OK" : "KO",
(acks_pending[0] || acks_pending[1]) ? ", ack=" : "",
(acks_pending[0]) ? (uci_data.uci_ack ? "1" : "0") : "",
(acks_pending[1]) ? (uci_data.uci_ack_2 ? "1" : "0") : "",
uci_data.uci_cqi_len > 0 ? cqi_str : "",
uci_data.uci_ri_len > 0 ? ((uci_data.uci_ri == 0) ? ", ri=0" : ", ri=1") : "",
timestr);
// Notify MAC of RL status
if (grants[i].grant.rv_idx == 0) {

15
srsue/src/phy/phch_worker.cc
Unescape Escape View File

@ -1046,13 +1046,14 @@ void phch_worker::encode_pusch(srslte_ra_ul_grant_t *grant, uint8_t *payload, ui
#endif
uint8_t dummy[2] = {0,0};
log_h->info("PUSCH: tti_tx=%d, alloc=(%d,%d), tbs=%d, mcs=%d, rv=%d, ack=%s, ri=%s, cfo=%.1f KHz%s\n",
(tti+HARQ_DELAY_MS)%10240,
grant->n_prb[0], grant->n_prb[0]+grant->L_prb,
grant->mcs.tbs/8, grant->mcs.idx, rv,
uci_data.uci_ack_len>0?(uci_data.uci_ack?"1":"0"):"no",
uci_data.uci_ri_len>0?(uci_data.uci_ri?"1":"0"):"no",
cfo*15, timestr);
log_h->info("PUSCH: tti_tx=%d, alloc=(%d,%d), tbs=%d, mcs=%d, rv=%d%s%s%s, cfo=%.1f KHz%s\n",
(tti + HARQ_DELAY_MS) % 10240,
grant->n_prb[0], grant->n_prb[0] + grant->L_prb,
grant->mcs.tbs / 8, grant->mcs.idx, rv,
uci_data.uci_ack_len > 0 ? (uci_data.uci_ack ? ", ack=1" : "0") : "",
uci_data.uci_ack_len > 1 ? (uci_data.uci_ack_2 ? "1" : "0") : "",
uci_data.uci_ri_len > 0 ? (uci_data.uci_ri ? ", ri=1" : ", ri=0") : "",
cfo * 15, timestr);
// Store metrics
ul_metrics.mcs = grant->mcs.idx;

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