fixeria has uploaded this change for review. (
https://gerrit.osmocom.org/c/libosmocore/+/31669 )
Change subject: gsm0502: add burst length definitions from chapter 5.2
......................................................................
gsm0502: add burst length definitions from chapter 5.2
Change-Id: I1c38ccc2b64ba9046bb3b1221d99cc55ec493802
Related: OS#1572
---
M include/osmocom/gsm/gsm0502.h
1 file changed, 40 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/69/31669/1
diff --git a/include/osmocom/gsm/gsm0502.h b/include/osmocom/gsm/gsm0502.h
index 8a8e51a..8fe9fb0 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)
--
To view, visit https://gerrit.osmocom.org/c/libosmocore/+/31669
To unsubscribe, or for help writing mail filters, visit
https://gerrit.osmocom.org/settings
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I1c38ccc2b64ba9046bb3b1221d99cc55ec493802
Gerrit-Change-Number: 31669
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <[email protected]>
Gerrit-MessageType: newchange
