diff options
| author | Vadim Yanitskiy <vyanitskiy@sysmocom.de> | 2023-03-06 04:42:14 +0700 |
|---|---|---|
| committer | fixeria <vyanitskiy@sysmocom.de> | 2023-03-07 13:25:36 +0000 |
| commit | c657a5028ede03a1bd12498ac2c267635edcdcb8 (patch) | |
| tree | e8ca8459c034932faecd2dff7bf9a99211e58df4 /include/osmocom/gsm/gsm0502.h | |
| parent | c9527763c23035c7a464e82fd1114cf9c279005c (diff) | |
gsm0502: add burst length definitions from chapter 5.2
Change-Id: I1c38ccc2b64ba9046bb3b1221d99cc55ec493802
Related: OS#1572
Diffstat (limited to 'include/osmocom/gsm/gsm0502.h')
| -rw-r--r-- | include/osmocom/gsm/gsm0502.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/osmocom/gsm/gsm0502.h b/include/osmocom/gsm/gsm0502.h index 8a8e51a5..ac697d99 100644 --- a/include/osmocom/gsm/gsm0502.h +++ b/include/osmocom/gsm/gsm0502.h @@ -31,6 +31,36 @@ #define GSM_TDMA_FN_DEC(fn) \ ((fn) = GSM_TDMA_FN_SUB((fn), 1)) +/* 5.2.3.1 Normal burst for GMSK (1 bit per symbol) */ +#define GSM_NBITS_NB_GMSK_TAIL 3 +#define GSM_NBITS_NB_GMSK_PAYLOAD (2 * 58) +#define GSM_NBITS_NB_GMSK_TRAIN_SEQ 26 +#define GSM_NBITS_NB_GMSK_BURST 148 /* without guard period */ + +/* 5.2.3.3 Normal burst for 8-PSK (3 bits per symbol) */ +#define GSM_NBITS_NB_8PSK_TAIL (GSM_NBITS_NB_GMSK_TAIL * 3) +#define GSM_NBITS_NB_8PSK_PAYLOAD (GSM_NBITS_NB_GMSK_PAYLOAD * 3) +#define GSM_NBITS_NB_8PSK_TRAIN_SEQ (GSM_NBITS_NB_GMSK_TRAIN_SEQ * 3) +#define GSM_NBITS_NB_8PSK_BURST (GSM_NBITS_NB_GMSK_BURST * 3) + +/* 5.2.5 Synchronization burst (also GMSK) */ +#define GSM_NBITS_SB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL +#define GSM_NBITS_SB_GMSK_PAYLOAD (2 * 39) +#define GSM_NBITS_SB_GMSK_ETRAIN_SEQ 64 +#define GSM_NBITS_SB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST + +/* 5.2.6 Dummy burst (also GMSK) */ +#define GSM_NBITS_DB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL +#define GSM_NBITS_DB_GMSK_MIXED 142 +#define GSM_NBITS_DB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST + +/* 5.2.7 Access burst (also GMSK) */ +#define GSM_NBITS_AB_GMSK_ETAIL 8 +#define GSM_NBITS_AB_GMSK_SYNCH_SEQ 41 +#define GSM_NBITS_AB_GMSK_PAYLOAD 36 +#define GSM_NBITS_AB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL +#define GSM_NBITS_AB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST + /* Table 5 Clause 7 TS 05.02 */ static inline unsigned int gsm0502_get_n_pag_blocks(const struct gsm48_control_channel_descr *chan_desc) |