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ue,proc_ra_nr: fix retransmission of PRACH after failed RAR rx 

if the backoff value is calculated to be zero, don't start
a timer but tx new preamble directly
This commit is contained in:
Andre Puschmann 2021-07-29 18:07:10 +02:00 committed by Xavier Arteaga
parent ffc63ea270
commit d78cbdf9bb
1 changed files with 9 additions and 4 deletions
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13
srsue/src/stack/mac_nr/proc_ra_nr.cc
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@ -291,15 +291,20 @@ void proc_ra_nr::ra_error()
reset();
}
} else {
// if the Random Access procedure is not completed
// try again, if RA failed
if (preamble_backoff) {
backoff_wait = rand() % preamble_backoff;
} else {
backoff_wait = 0;
}
logger.warning("Backoff wait interval %d", backoff_wait);
backoff_timer.set(backoff_wait, [this](uint32_t tid) { timer_expired(tid); });
backoff_timer.run();
logger.debug("Backoff wait interval %d", backoff_wait);
if (backoff_wait > 0) {
backoff_timer.set(backoff_wait, [this](uint32_t tid) { timer_expired(tid); });
backoff_timer.run();
} else {
timer_expired(backoff_timer.id());
}
}
}