Handle packet access reject during EPDAN/PDAN with channel description
When PDAN/EPDAN with channel description is received, PCU will generate the
packet access reject if no resources are present. The encoding is done
based on section 7.1.3.2.1 and 8.1.2.5 of 44.060 version 7.27.0 Release 7.
This patch also includes the test case to validate the generated
packet access reject message.
This patch is integration tested on Osmo-trx setup with Ettus B210 board
and LG F70 MS with some simulation code changes in Osmo-pcu.
Change-Id: I096a3bb44a65533b9e9b091925dd5f70a8696d6
diff --git a/src/gprs_rlcmac_sched.cpp b/src/gprs_rlcmac_sched.cpp
index f486075..a3723df 100644
--- a/src/gprs_rlcmac_sched.cpp
+++ b/src/gprs_rlcmac_sched.cpp
@@ -72,7 +72,8 @@
*poll_tbf = dl_tbf;
if (dl_tbf->dl_ass_state == GPRS_RLCMAC_DL_ASS_SEND_ASS)
*dl_ass_tbf = dl_tbf;
- if (dl_tbf->ul_ass_state == GPRS_RLCMAC_UL_ASS_SEND_ASS)
+ if (dl_tbf->ul_ass_state == GPRS_RLCMAC_UL_ASS_SEND_ASS
+ || dl_tbf->ul_ass_state == GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ)
*ul_ass_tbf = dl_tbf;
}
@@ -137,7 +138,11 @@
*/
if (tbf == ul_ass_tbf && tbf->direction == GPRS_RLCMAC_DL_TBF)
- msg = ul_ass_tbf->create_ul_ass(fn, ts);
+ if (tbf->ul_ass_state ==
+ GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ)
+ msg = ul_ass_tbf->create_packet_access_reject();
+ else
+ msg = ul_ass_tbf->create_ul_ass(fn, ts);
else if (tbf == dl_ass_tbf && tbf->direction == GPRS_RLCMAC_UL_TBF)
msg = dl_ass_tbf->create_dl_ass(fn, ts);
else if (tbf == ul_ack_tbf)