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uhd: disable adaptive buffering in 52 MHz transceiver

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Similar to the non-52 Mhz case,

589dd9091ef594ef6ef5804fbf6bfa70f3f02858

This drastically reduces underruns on the E100.

Signed-off-by: Thomas Tsou <ttsou@vt.edu>

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2648 19bc5d8c-e614-43d4-8b26-e1612bc8e597
This commit is contained in:
Kurtis Heimerl
2011-11-26 03:17:32 +00:00
parent 97046bbdd3
commit dd5485ec5d
1 changed files with 2 additions and 0 deletions
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2
Transceiver52M/Transceiver.cpp
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@@ -712,6 +712,7 @@ void Transceiver::driveTransmitFIFO()
while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) {
// if underrun, then we're not providing bursts to radio/USRP fast // if underrun, then we're not providing bursts to radio/USRP fast
// enough. Need to increase latency by one GSM frame. // enough. Need to increase latency by one GSM frame.
#ifndef USE_UHD
if (mRadioInterface->isUnderrun()) { if (mRadioInterface->isUnderrun()) {
// only do latency update every 10 frames, so we don't over update // only do latency update every 10 frames, so we don't over update
if (radioClock->get() > mLatencyUpdateTime + GSM::Time(10,0)) { if (radioClock->get() > mLatencyUpdateTime + GSM::Time(10,0)) {
@@ -731,6 +732,7 @@ void Transceiver::driveTransmitFIFO()
} }
} }
} }
#endif
// time to push burst to transmit FIFO // time to push burst to transmit FIFO
pushRadioVector(mTransmitDeadlineClock); pushRadioVector(mTransmitDeadlineClock);
mTransmitDeadlineClock.incTN(); mTransmitDeadlineClock.incTN();