diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2023-10-05 14:27:41 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2023-10-05 16:25:00 +0200 |
| commit | 203014d74468fd401900e2ab1b20fc14752c3c76 (patch) | |
| tree | 7a1928206034e0a844a98838a4827b771f9b81d7 | |
| parent | beed281a0a85a1242be52b9fa45d8b880f2508bc (diff) | |
Fix indices of ARFCNs for measurement report
The order of ARFCNs are described in TS 44.018 ยง10.5.2.20.
The function arfcn_from_freq_index() is re-used to get the ARFCNs in
correct order for the report.
Change-Id: I0674467eb5a38a341cf65f95a25aa5f7232df069
| -rw-r--r-- | src/host/layer23/include/osmocom/bb/common/sysinfo.h | 1 | ||||
| -rw-r--r-- | src/host/layer23/src/mobile/gsm48_rr.c | 36 |
2 files changed, 18 insertions, 19 deletions
diff --git a/src/host/layer23/include/osmocom/bb/common/sysinfo.h b/src/host/layer23/include/osmocom/bb/common/sysinfo.h index 89d38ac5..9efb2485 100644 --- a/src/host/layer23/include/osmocom/bb/common/sysinfo.h +++ b/src/host/layer23/include/osmocom/bb/common/sysinfo.h @@ -219,5 +219,6 @@ int gsm48_decode_sysinfo13(struct gsm48_sysinfo *s, int gsm48_decode_mobile_alloc(struct gsm_sysinfo_freq *freq, const uint8_t *ma, uint8_t len, uint16_t *hopping, uint8_t *hopp_len, int si4); +int16_t arfcn_from_freq_index(const struct gsm48_sysinfo *s, uint16_t index); #endif /* _SYSINFO_H */ diff --git a/src/host/layer23/src/mobile/gsm48_rr.c b/src/host/layer23/src/mobile/gsm48_rr.c index 8dca3792..3200412f 100644 --- a/src/host/layer23/src/mobile/gsm48_rr.c +++ b/src/host/layer23/src/mobile/gsm48_rr.c @@ -2538,32 +2538,30 @@ static int gsm48_new_sysinfo(struct osmocom_ms *ms, uint8_t type) && s->si5 && (!s->nb_ext_ind_si5 || s->si5bis)) { struct gsm48_rr_meas *rrmeas = &ms->rrlayer.meas; - int n = 0, i, refer_pcs; + int i, refer_pcs; + int16_t arfcn; LOGP(DRR, LOGL_NOTICE, "Complete set of SI5* for BA(%d)\n", s->nb_ba_ind_si5); rrmeas->nc_num = 0; refer_pcs = gsm_refer_pcs(cs->arfcn, s); - /* collect channels from freq list (1..1023,0) */ - for (i = 1; i <= 1024; i++) { - if ((s->freq[i & 1023].mask & FREQ_TYPE_REP)) { - if (n == 32) { - LOGP(DRR, LOGL_NOTICE, "SI5* report " - "exceeds 32 BCCHs\n"); - break; - } - if (refer_pcs && i >= 512 && i <= 810) - rrmeas->nc_arfcn[n] = i | ARFCN_PCS; - else - rrmeas->nc_arfcn[n] = i & 1023; - rrmeas->nc_rxlev_dbm[n] = -128; - LOGP(DRR, LOGL_NOTICE, "SI5* report arfcn %s\n", - gsm_print_arfcn(rrmeas->nc_arfcn[n])); - n++; - } + /* Collect channels from freq list in correct order. */ + for (i = 1; i < 32; i++) { + arfcn = arfcn_from_freq_index(s, i); + if (arfcn < 0) + break; + if (refer_pcs && arfcn >= 512 && arfcn <= 810) + rrmeas->nc_arfcn[i] = arfcn | ARFCN_PCS; + else + rrmeas->nc_arfcn[i] = arfcn; + rrmeas->nc_rxlev_dbm[i] = -128; + LOGP(DRR, LOGL_NOTICE, "SI5/SI5bis report arfcn %s (index %d)\n", + gsm_print_arfcn(rrmeas->nc_arfcn[i]), i); } - rrmeas->nc_num = n; + rrmeas->nc_num = i; + if (i == 32 && arfcn_from_freq_index(s, i) >= 0) + LOGP(DRR, LOGL_NOTICE, "SI5/SI5bis/SI5ter define more than 32 channels.\n"); } /* send sysinfo event to other layers */ |