tbf: Re-send dl assignment if we can upgrade to multislot

The current code would only ever assign one PDCH for the initial
assignment (from CCCH). Only if reuse_tbf is called the algorithm would
actually use multiple DL PDCHs if possible.

This patch introduced a tbf attribute upgrade_to_multislot that is set
if we have multiple PDCH configured, and support multislot assignment,
but can only assign a single PDCH (alloc_algorithm_b, parameter single
is set). In this case after the assignment completes (and the MS is
listening on a PDCH) we resend a DL assignment though the PACCH and this
time we can assign multiple timeslots.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/tbf.h b/src/tbf.h
index 0ee97187..80e2068f 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -221,6 +221,9 @@ struct gprs_rlcmac_tbf {
 	 * schedule a new dl assignment */
 	uint8_t was_releasing;
 
+	/* Can/should we upgrade this tbf to use multiple slots? */
+	uint8_t upgrade_to_multislot;
+
 	/* store the BTS this TBF belongs to */
 	BTS *bts;