diff options
Diffstat (limited to 'src/gsm/gsm48.c')
| -rw-r--r-- | src/gsm/gsm48.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c index d0345892..4645af4d 100644 --- a/src/gsm/gsm48.c +++ b/src/gsm/gsm48.c @@ -33,6 +33,7 @@ #include <osmocom/gsm/gsm48.h> #include <osmocom/gsm/protocol/gsm_04_08.h> +#include <osmocom/gsm/protocol/gsm_08_58.h> const struct tlv_definition gsm48_att_tlvdef = { .def = { @@ -413,3 +414,15 @@ int gsm48_construct_ra(uint8_t *buf, const struct gprs_ra_id *raid) return 6; } + +/* From Table 10.5.33 of GSM 04.08 */ +int gsm48_number_of_paging_subchannels(struct gsm48_control_channel_descr *chan_desc) +{ + if (chan_desc->ccch_conf == RSL_BCCH_CCCH_CONF_1_C) { + return OSMO_MAX(1, (3 - chan_desc->bs_ag_blks_res)) + * (chan_desc->bs_pa_mfrms + 2); + } else { + return (9 - chan_desc->bs_ag_blks_res) + * (chan_desc->bs_pa_mfrms + 2); + } +} |