int srslte_ulsch_encode(srslte_sch_t *q, srslte_pusch_cfg_t *cfg, srslte_softbuffer_tx_t *softbuffer, uint8_t *data, uint8_t *g_bits, uint8_t *q_bits) { srslte_uci_data_t uci_data; bzero(&uci_data, sizeof(srslte_uci_data_t)); return srslte_ulsch_uci_encode(q, cfg, softbuffer, data, uci_data, g_bits, q_bits); }
/* the gateway function */ void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) { srslte_sch_t ulsch; srslte_pusch_cfg_t cfg; srslte_softbuffer_tx_t softbuffer; srslte_uci_data_t uci_data; bzero(&uci_data, sizeof(srslte_uci_data_t)); uint32_t rv; if (nrhs < NOF_INPUTS) { help(); return; } bzero(&cfg, sizeof(srslte_pusch_cfg_t)); if (srslte_sch_init(&ulsch)) { mexErrMsgTxt("Error initiating ULSCH\n"); return; } srslte_cell_t cell; cell.nof_prb = 100; cell.id=1; cell.cp=SRSLTE_CP_NORM; if (srslte_softbuffer_tx_init(&softbuffer, cell.nof_prb)) { mexErrMsgTxt("Error initiating HARQ\n"); return; } uint8_t *trblkin_bits = NULL; cfg.grant.mcs.tbs = mexutils_read_uint8(TRBLKIN, &trblkin_bits); uint8_t *trblkin = srslte_vec_malloc(cfg.grant.mcs.tbs/8); srslte_bit_unpack_vector(trblkin_bits, trblkin, cfg.grant.mcs.tbs); free(trblkin_bits); uint8_t *tmp; uci_data.uci_cqi_len = mexutils_read_uint8(CQI, &tmp); memcpy(uci_data.uci_cqi, tmp, uci_data.uci_cqi_len); free(tmp); uci_data.uci_ri_len = mexutils_read_uint8(RI, &tmp); if (uci_data.uci_ri_len > 0) { uci_data.uci_ri = *tmp; } free(tmp); uci_data.uci_ack_len = mexutils_read_uint8(ACK, &tmp); if (uci_data.uci_ack_len > 0) { uci_data.uci_ack = *tmp; } free(tmp); mexPrintf("TRBL_len: %d, CQI_len: %d, ACK_len: %d, RI_len: %d\n", cfg.grant.mcs.tbs, uci_data.uci_cqi_len, uci_data.uci_ack_len, uci_data.uci_ri_len); if (mexutils_read_uint32_struct(PUSCHCFG, "RV", &rv)) { mexErrMsgTxt("Field RV not found in pdsch config\n"); return; } float beta; if (mexutils_read_float_struct(PUSCHCFG, "BetaCQI", &beta)) { cfg.uci_cfg.I_offset_cqi = 7; } else { cfg.uci_cfg.I_offset_cqi = srslte_sch_find_Ioffset_cqi(beta); } if (mexutils_read_float_struct(PUSCHCFG, "BetaRI", &beta)) { cfg.uci_cfg.I_offset_ri = 2; } else { cfg.uci_cfg.I_offset_ri = srslte_sch_find_Ioffset_ri(beta); } if (mexutils_read_float_struct(PUSCHCFG, "BetaACK", &beta)) { cfg.uci_cfg.I_offset_ack = 0; } else { cfg.uci_cfg.I_offset_ack = srslte_sch_find_Ioffset_ack(beta); } char *mod_str = mexutils_get_char_struct(PUSCHCFG, "Modulation"); if (!strcmp(mod_str, "QPSK")) { cfg.grant.mcs.mod = SRSLTE_MOD_QPSK; } else if (!strcmp(mod_str, "16QAM")) { cfg.grant.mcs.mod = SRSLTE_MOD_16QAM; } else if (!strcmp(mod_str, "64QAM")) { cfg.grant.mcs.mod = SRSLTE_MOD_64QAM; } else { mexErrMsgTxt("Unknown modulation\n"); return; } mxFree(mod_str); float *prbset; mxArray *p; p = mxGetField(PUSCHCFG, 0, "PRBSet"); if (!p) { mexErrMsgTxt("Error field PRBSet not found\n"); return; } uint32_t N_srs = 0; mexutils_read_uint32_struct(PUSCHCFG, "Shortened", &N_srs); cfg.grant.L_prb = mexutils_read_f(p, &prbset); cfg.grant.n_prb[0] = prbset[0]; cfg.grant.n_prb[1] = prbset[0]; free(prbset); cfg.grant.L_prb = mexutils_read_f(p, &prbset); cfg.grant.n_prb[0] = prbset[0]; cfg.grant.n_prb[1] = prbset[0]; cfg.nbits.lstart = 0; cfg.nbits.nof_symb = 2*(SRSLTE_CP_NSYMB(cell.cp)-1) - N_srs; cfg.grant.M_sc = cfg.grant.L_prb*SRSLTE_NRE; cfg.grant.M_sc_init = cfg.grant.M_sc; // FIXME: What should M_sc_init be? cfg.nbits.nof_re = cfg.nbits.nof_symb*cfg.grant.M_sc; cfg.grant.Qm = srslte_mod_bits_x_symbol(cfg.grant.mcs.mod); cfg.nbits.nof_bits = cfg.nbits.nof_re * cfg.grant.Qm; mexPrintf("Q_m: %d, NPRB: %d, RV: %d, Nsrs=%d\n", srslte_mod_bits_x_symbol(cfg.grant.mcs.mod), cfg.grant.L_prb, cfg.rv, N_srs); mexPrintf("I_cqi: %d, I_ri: %d, I_ack=%d\n", cfg.uci_cfg.I_offset_cqi, cfg.uci_cfg.I_offset_ri, cfg.uci_cfg.I_offset_ack); if (srslte_cbsegm(&cfg.cb_segm, cfg.grant.mcs.tbs)) { mexErrMsgTxt("Error configuring HARQ process\n"); return; } uint8_t *q_bits = srslte_vec_malloc(cfg.nbits.nof_bits * sizeof(uint8_t)); if (!q_bits) { return; } uint8_t *g_bits = srslte_vec_malloc(cfg.nbits.nof_bits * sizeof(uint8_t)); if (!g_bits) { return; } if (srslte_ulsch_uci_encode(&ulsch, &cfg, &softbuffer, trblkin, uci_data, g_bits, q_bits)) { mexErrMsgTxt("Error encoding TB\n"); return; } if (rv > 0) { cfg.rv = rv; if (srslte_ulsch_uci_encode(&ulsch, &cfg, &softbuffer, trblkin, uci_data, g_bits, q_bits)) { mexErrMsgTxt("Error encoding TB\n"); return; } } if (nlhs >= 1) { mexutils_write_uint8(q_bits, &plhs[0], cfg.nbits.nof_bits, 1); } srslte_sch_free(&ulsch); srslte_softbuffer_tx_free(&softbuffer); free(trblkin); free(g_bits); free(q_bits); return; }