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srsLTE
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add NB-IoT scrambling sequences

This commit is contained in:
Andre Puschmann 2019-10-24 17:49:10 +02:00
parent b20f7ba541
commit 792e2f7f8f
2 changed files with 86 additions and 4 deletions
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25
lib/include/srslte/phy/common/sequence.h
View File

@ -96,4 +96,29 @@ SRSLTE_API int srslte_sequence_pmch(srslte_sequence_t *seq,
uint32_t mbsfn_id,
uint32_t len);
SRSLTE_API int srslte_sequence_npbch(srslte_sequence_t* seq, srslte_cp_t cp, uint32_t cell_id);
SRSLTE_API int srslte_sequence_npbch_r14(srslte_sequence_t* seq, uint32_t n_id_ncell, uint32_t nf);
SRSLTE_API int srslte_sequence_npdsch(srslte_sequence_t* seq,
uint16_t rnti,
int q,
uint32_t nf,
uint32_t nslot,
uint32_t cell_id,
uint32_t len);
SRSLTE_API int srslte_sequence_npdsch_bcch_r14(srslte_sequence_t* seq, uint32_t nf, uint32_t n_id_ncell, uint32_t len);
SRSLTE_API int srslte_sequence_npdcch(srslte_sequence_t* seq, uint32_t nslot, uint32_t cell_id, uint32_t len);
SRSLTE_API int srslte_sequence_npusch(srslte_sequence_t* seq,
uint16_t rnti,
uint32_t nf,
uint32_t nslot,
uint32_t cell_id,
uint32_t len);
SRSLTE_API int srslte_sequence_nprach(srslte_sequence_t* seq, uint32_t cell_id);
#endif // SRSLTE_SEQUENCE_H

65
lib/src/phy/phch/sequences.c
View File

@ -73,8 +73,65 @@ int srslte_sequence_pucch(srslte_sequence_t *seq, uint16_t rnti, uint32_t nslot,
return srslte_sequence_LTE_pr(seq, 12 * 4, ((((nslot / 2) + 1) * (2 * cell_id + 1)) << 16) + rnti);
}
int srslte_sequence_pmch(srslte_sequence_t *seq, uint32_t nslot, uint32_t mbsfn_id , uint32_t len){
bzero(seq,sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (((nslot/2)<<9) + mbsfn_id));
int srslte_sequence_pmch(srslte_sequence_t* seq, uint32_t nslot, uint32_t mbsfn_id, uint32_t len)
{
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (((nslot / 2) << 9) + mbsfn_id));
}
/**
* 36.211 6.6.1 and 10.2.4.1 (13.2.0)
*/
int srslte_sequence_npbch(srslte_sequence_t *seq, srslte_cp_t cp, uint32_t cell_id) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, 1600, cell_id);
}
/**
* 36.211 6.6.1 and 10.2.4.4 (14.2.0)
*/
int srslte_sequence_npbch_r14(srslte_sequence_t *seq, uint32_t n_id_ncell, uint32_t nf)
{
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, 200, (n_id_ncell + 1) * (((nf % 8) + 1) * ((nf % 8) + 1) * ((nf % 8) + 1)) * 512 + n_id_ncell);
}
/**
* 36.211 6.3.1 and 10.2.3.1 (13.2.0)
*/
int srslte_sequence_npdsch(srslte_sequence_t *seq, uint16_t rnti, int q, uint32_t nf, uint32_t nslot, uint32_t cell_id, uint32_t len) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (rnti<<14) + ((nf % 2)<<13) + ((nslot/2)<<9) + cell_id);
}
/**
* 36.211 6.3.1 and 10.2.3.1 (14.2.0)
*/
int srslte_sequence_npdsch_bcch_r14(srslte_sequence_t *seq, uint32_t nf, uint32_t n_id_ncell, uint32_t len) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (0xffff<<15) + (n_id_ncell + 1) * ((nf % 61)+1));
}
/**
* 36.211 6.6.1 and 10.2.5.2 (13.2.0)
*/
int srslte_sequence_npdcch(srslte_sequence_t *seq, uint32_t nslot, uint32_t cell_id, uint32_t len) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (nslot/2) * 512 + cell_id);
}
/**
* 36.211 5.3.1 and 10.1.3.1 (13.2.0)
*/
int srslte_sequence_npusch(srslte_sequence_t *seq, uint16_t rnti, uint32_t nf, uint32_t nslot, uint32_t cell_id, uint32_t len) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, len, (rnti<<14) + ((nf % 2)<<13) + ((nslot/2)<<9) + cell_id);
}
/**
* 36.211 7.2.0 and 10.1.6.1 (13.2.0)
*/
int srslte_sequence_nprach(srslte_sequence_t *seq, uint32_t cell_id) {
bzero(seq, sizeof(srslte_sequence_t));
return srslte_sequence_LTE_pr(seq, 1600, cell_id);
}