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tbf_ul: Avoid processing rx UL blocks for UL TBFs in RELEASING state 

Change-Id: I1da9b665b9ed83a644ea798008d456d6298b7460
This commit is contained in:
Pau Espin 2023-06-23 14:37:59 +02:00
parent 28ccf7a284
commit 061fbca2a9
1 changed files with 13 additions and 0 deletions
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13
src/tbf_ul.cpp
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@ -258,6 +258,19 @@ int gprs_rlcmac_ul_tbf::rcv_data_block_acknowledged(
"V(R)=%d)\n", rlc->tfi, this->m_window.v_q(),
this->m_window.v_r());
if (tbf_state(this) == TBF_ST_RELEASING) {
/* This may happen if MAX_N3101 is hit previously, moving the UL
* TBF to RELEASING state. Since we have an fn-advance where DL
* blocks are scheduled in advance, we may have requested USF for
* this UL TBF before triggering and hence we are now receiving a
* UL block from it. If this is the case, simply ignore the block.
*/
LOGPTBFUL(this, LOGL_INFO,
"UL DATA TFI=%d received (V(Q)=%d .. V(R)=%d) while in RELEASING state, discarding\n",
rlc->tfi, this->m_window.v_q(), this->m_window.v_r());
return 0;
}
/* process RSSI */
gprs_rlcmac_rssi(this, rssi);