Issue:
The downlinks are rejected when a collision_beacom is detected, even though the downlink is on a different frequency, as a result the downlink communication fails on the rx1 and rx2 lora window.
Setup:
RAK7249 fw.1.3.1_RAK b71
Channel Plan EU868
LoRa® Server:
ChirpStack v3.15.5
Details:
Log of Lora Packet Logger
System Logs
Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: INFO: [down] PULL_ACK received in 1 ms
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: gps sat : 9, gps mod : D, gps status: 2
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: rrd_statistic_up 367 uplinkTqByAirtime : dr = 5, timeonair = 71, tm = 1643360615
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: rrd_statistic_up 369 uplinkTqByPkt : dr = 5, tm = 1643360615
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: rrd_statistic_up 371 ChanBusyByAirtime chan 2, timeonair = 71, tm = 1643360615
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: Uplink Frame :
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 80 99 B9 55 01 80 95 0B
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 0A 18 8D FA B8 BA EE D0
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 6B D1 AD 87 C7 84 7F F4
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 79 BF F4 9A 04 40 7E 4C
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 2B 0F
Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: JSON up: {“rxpk”:[{“tmst”:1583941987,“time”:“2022-01-28T09:03:35.504332Z”,“tmms”:1327395833504,“chan”:2,“rfch”:0,“freq”:867.500000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“lsnr”:7.5,“rssi”:-79,“size”:34,“data”:“gJm5VQGAlQsKGI36uLru0GvRrYfHhH/0eb/0mgRAfkwrDw==”}]}
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: gwBridgeReadCB: Frame size 280
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Enter gwBridgeFrameRcv, mdCreateEvent 0 Frame Len 280
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Uplink Packet from Gateway 60c5a8fffe76635d
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Uplink - {“rxpk”:[{“tmst”:1583941987,“time”:“2022-01-28T09:03:35.504332Z”,“tmms”:1327395833504,“chan”:2,“rfch”:0,“freq”:867.500000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“lsnr”:7.5,“rssi”:-79,“size”:34,“data”:“gJm5VQGAlQsKGI36uLru0GvRrYfHhH/0eb/0mgRAfkwrDw==”}]}
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: [Uplink] - Protobuf size 173
Fri Jan 28 10:03:35 2022 daemon.info mqttEv[3973]: mqttEvPublish : [[gwBridgeS Mqtt Client]] publish - [173][ "���U�� ������kѭ�DŽ�y���@~L+��ӝ }a4/5t
Ũ��vc]��Ώ���������ܩ�(���������1] Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: INFO: [up] PUSH_ACK received in 0 ms Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: mosqMsgCB topic : gateway/60c5a8fffe76635d/command/down Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: gwBridgeParseMosqDownlink mqtt downlink packet - size 205 Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: INFO: [down] PULL_RESP received - token[160:76] :) Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: JSON down: {"txpk":{"imme":false,"tmst":1590941987,"freq":867.500000,"rfch":0,"powe":24,"ncrc":false,"modu":"LORA","codr":"4/5","datr":"SF7BW125","ipol":true,"size":13,"data":"YJm5VQGhlAsG1NybSg=="}} Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: DownLink Frame : Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 60 99 B9 55 01 A1 94 0B Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 06 D4 DC 9B 4A Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: src/jitqueue.c:291:jit_enqueue(): ERROR: Packet (type=0) REJECTED, collision with beacon already programmed at 1590437322 (1590941987) Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: gwBridgeReadCB: Frame size 53 Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Enter gwBridgeFrameRcv, mdCreateEvent 0 Frame Len 53 Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Uplink Packet from Gateway 60c5a8fffe76635d Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: [TxAck] - Protobuf size 50 Fri Jan 28 10:03:35 2022 daemon.info mqttEv[3973]: mqttEvPublish : [[gwBridgeS Mqtt Client]] publish - [50][
Ũ��vc]��COLLISION_BEACON"L����Mr��[lô]Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: mosqMsgCB topic : gateway/60c5a8fffe76635d/command/down
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: gwBridgeParseMosqDownlink mqtt downlink packet - size 150
Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: INFO: [down] PULL_RESP received - token[160:76]
Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: JSON down: {“txpk”:{“imme”:false,“tmst”:1591941987,“freq”:869.525000,“rfch”:0,“powe”:24,“ncrc”:false,“modu”:“LORA”,“codr”:“4/5”,“datr”:“SF12BW125”,“ipol”:true,“size”:13,“data”:“YJm5VQGhlAsG1NybSg==”}}
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: DownLink Frame :
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 60 99 B9 55 01 A1 94 0B
Fri Jan 28 10:03:35 2022 user.debug lora_pkt_fwd[4026]: 06 D4 DC 9B 4A
Fri Jan 28 10:03:35 2022 user.info lora_pkt_fwd[4026]: src/jitqueue.c:291:jit_enqueue(): ERROR: Packet (type=0) REJECTED, collision with beacon already programmed at 1590437322 (1591941987)
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: gwBridgeReadCB: Frame size 53
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Enter gwBridgeFrameRcv, mdCreateEvent 0 Frame Len 53
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: Uplink Packet from Gateway 60c5a8fffe76635d
Fri Jan 28 10:03:35 2022 daemon.info gwBridge[3973]: [TxAck] - Protobuf size 50
Fri Jan 28 10:03:35 2022 daemon.info mqttEv[3973]: mqttEvPublish : [[gwBridgeS Mqtt Client]] publish - [50][ `Ũ��vc]��COLLISION_BEACON"L����Mr��[lô]
Fri Jan 28 10:03:36 2022 user.debug lora_pkt_fwd[4026]: gps sat : 9, gps mod : D, gps status: 2
Fri Jan 28 10:03:37 2022 user.debug lora_pkt_fwd[4026]: gps sat : 9, gps mod : D, gps status: 2