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-rw-r--r--src/host/trxcon/sched_lchan_desc.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/host/trxcon/sched_lchan_desc.c b/src/host/trxcon/sched_lchan_desc.c
index fde4d4ee..b22a18b8 100644
--- a/src/host/trxcon/sched_lchan_desc.c
+++ b/src/host/trxcon/sched_lchan_desc.c
@@ -155,7 +155,10 @@ const struct trx_lchan_desc trx_lchan_desc[_TRX_CHAN_MAX] = {
/* Rx and Tx, multiple convolutional coding types (3GPP TS 05.03,
* chapter 3), block diagonal interleaving (3GPP TS 05.02, clause 7):
*
- * - a traffic frame is interleaved over 6 consecutive bursts
+ * - a traffic frame is interleaved over 4 non-consecutive bursts
+ * using the even numbered bits of the first 2 bursts,
+ * and odd numbered bits of the last 2 bursts;
+ * - a FACCH/H frame is interleaved over 6 non-consecutive bursts
* using the even numbered bits of the first 2 bursts,
* all bits of the middle two 2 bursts,
* and odd numbered bits of the last 2 bursts;