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| author | Jason Reiss <jreiss@multitech.com> | 2021-06-17 14:29:00 -0500 |
|---|---|---|
| committer | Jason Reiss <jreiss@multitech.com> | 2021-06-17 14:29:00 -0500 |
| commit | 7032155d630bd05e49c622202b4ed6844b4a429f (patch) | |
| tree | 8448456f9c96eb76c62648a6c67ed5ca142a1158 /libloragw | |
| parent | ee305b42611200077f4b5714479deb6870af0af9 (diff) | |
| download | lora_gateway_mtac_full-7032155d630bd05e49c622202b4ed6844b4a429f.tar.gz lora_gateway_mtac_full-7032155d630bd05e49c622202b4ed6844b4a429f.tar.bz2 lora_gateway_mtac_full-7032155d630bd05e49c622202b4ed6844b4a429f.zip | |
lbt: adjust packet duration check to allow 400ms, check was there to only allow tx within 4s of last ch free time, channels are checked more frequently than every 4s5.0.5
Diffstat (limited to 'libloragw')
| -rw-r--r-- | libloragw/src/loragw_lbt.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libloragw/src/loragw_lbt.c b/libloragw/src/loragw_lbt.c index 9c43521..a9a858f 100644 --- a/libloragw/src/loragw_lbt.c +++ b/libloragw/src/loragw_lbt.c @@ -345,7 +345,10 @@ int lbt_is_channel_free(struct lgw_pkt_tx_s * pkt_data, uint16_t tx_start_delay, /* lbt_time: last time when channel was free */ /* tx_max_time: maximum time allowed to send packet since last free time */ /* 2048: some margin */ - if ((delta_time < (tx_max_time - 2048)) && (lbt_time != 0)) { + // if ((delta_time <= (tx_max_time - 2048)) && (lbt_time != 0)) { + // delta time check did not allow 400 ms packets, change to simple check against packet duration + // Japan STD regulations allow 400ms packet duration from start of tx + if ((packet_duration <= (tx_max_time)) && (lbt_time != 0)) { *tx_allowed = true; } else { DEBUG_MSG("ERROR: TX request rejected (LBT)\n"); |