AGPS issues with nRF9160 Dev Kit

RE: AGPS issues with nRF9160 Dev Kit

Albrecht Markus Schellenberger — Wed, 20 Jul 2022 12:36:14 GMT

Hello Chetan,

[quote user="Chetan Kale"]Okay, then here I will assume its a problem with MQTT/TCP. Also let me share some more traces with you as we faced some issues while generating Modem traces and will come to know if the similar issues repeats when we found "111" at AT+CEREG. [/quote]

As we are getting slightly off-topic, I need to ask you create a new DevZone ticket for this. Modem trace analysis takes normally some time, and we have limited resources doing so currently due to the summer vacation period.

[quote user="Chetan Kale"]But if it is related to signal quality then is there any AT command which tells the Signal Quality status so that if device found less signal quality the I can take precautionary measures ?[/quote]

You can use the signal quality notification %CESQ here. Modem domain event notifications %MDMEV might give you some additional helpful input as well.

Cheers,

Markus

RE: AGPS issues with nRF9160 Dev Kit

Chetan Kale — Wed, 20 Jul 2022 09:58:40 GMT

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/377808"]But the retransmission attempts from the server side might indicate weak signal quality, yes.[/quote]

Okay, then here I will assume its a problem with MQTT/TCP. Also let me share some more traces with you as we faced some issues while generating Modem traces and will come to know if the similar issues repeats when we found "111" at AT+CEREG.

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/377808"]I honestly cannot tell you that, as it depends on a lot of environmental factors and how the antenna of the UE is designed. One of those factors is in which surrounding the device is located and how fast it moves. It is to be expected that the signal quality varies, a stable network connection is probably only possible to achieve in test chambers or close to a cell tower. [/quote]

Actually the modem traces which I shared with you is from the nRF9160 Dev Kit which is placed near the window at same location for continuous testing. But if it is related to signal quality then is there any AT command which tells the Signal Quality status so that if device found less signal quality the I can take precautionary measures ?

Regards,

Chetan

RE: AGPS issues with nRF9160 Dev Kit

Albrecht Markus Schellenberger — Wed, 20 Jul 2022 09:44:15 GMT

[quote user="Chetan Kale"]Thank you![/quote]

My pleasure, Chetan :-)

[quote user="Chetan Kale"]Thanks for the response. Please correct me if I am wrong. So you mean the Network connection is weak at the location where I am testing the device ? Or is that is related to MQTT/TCP ? [/quote]

That is a little bit hard for me to say, as it is the network that releases the UE. But the retransmission attempts from the server side might indicate weak signal quality, yes.

180	13.792083	10.165.147.123	142.250.138.192	ILP	87	[Malformed Packet]
181	13.883026	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=1 Ack=36 Win=65535 Len=0
182	13.901184	142.250.138.192	10.165.147.123	ILP	82	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
183	13.911132	10.165.147.123	142.250.138.192	ILP	106	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
184	14.014099	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=0
185	14.157135	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
186	14.381530	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [PSH, ACK] Seq=739 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
187	14.381988	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=1447 Win=5664 Len=0
188	14.541534	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [ACK] Seq=1447 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
189	14.686645	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [PSH, ACK] Seq=2155 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
190	14.687133	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=2863 Win=5664 Len=0
191	14.766113	142.250.138.192	10.165.147.123	ILP	294	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
192	14.909668	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=708
193	14.910125	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
194	15.069702	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [ACK] Seq=1447 Ack=90 Win=65535 Len=708
195	15.070129	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#1] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
196	15.267150	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [PSH, ACK] Seq=2155 Ack=90 Win=65535 Len=708
197	15.267425	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#2] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
198	15.343231	142.250.138.192	10.165.147.123	TCP	294	[TCP Spurious Retransmission] 7276 → 64290 [PSH, ACK] Seq=2863 Ack=90 Win=65535 Len=242
199	15.343414	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#3] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
200	16.030242	142.250.138.192	10.165.147.123	ILP	82	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
201	16.042724	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [FIN, ACK] Seq=90 Ack=3135 Win=6342 Len=0
202	16.099273	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=3135 Ack=91 Win=65535 Len=0
203	16.112152	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [FIN, ACK] Seq=3135 Ack=91 Win=65535 Len=0
204	16.112304	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=91 Ack=3136 Win=6341 Len=0
205	18.192321			LTE RRC DL_DCCH	26	RRCConnectionRelease [cause=other]
206	19.597137			AT	23	Rcvd AT Command: +CSCON: 0

[quote user="Chetan Kale"]Also, What shall I do to make it more robust that I can assure that there is a weak network or network failure occurred? [/quote]

I honestly cannot tell you that, as it depends on a lot of environmental factors and how the antenna of the UE is designed. One of those factors is in which surrounding the device is located and how fast it moves. It is to be expected that the signal quality varies, a stable network connection is probably only possible to achieve in test chambers or close to a cell tower.

Cheers,

Markus

RE: AGPS issues with nRF9160 Dev Kit

Chetan Kale — Wed, 20 Jul 2022 08:36:27 GMT

Hello Markus,

Thanks for the response. Please correct me if I am wrong. So you mean the Network connection is weak at the location where I am testing the device ? Or is that is related to MQTT/TCP ?

Also, What shall I do to make it more robust that I can assure that there is a weak network or network failure occurred?

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/377789"]In the trace I can see that there is a RRC Connection release event which is not caused by changing the operation mode of the modem, but probably due to loss of network connection during data exchange with the server. [/quote]

Thank you!

Regards,

Chetan

RE: AGPS issues with nRF9160 Dev Kit

Albrecht Markus Schellenberger — Wed, 20 Jul 2022 08:19:41 GMT

Hello Chetan,

Thanks for the feedback and the modem traces.

[quote user="Chetan Kale"]Please find the modem traces for the CEREG Response of +CEREG: 5,5,"A21B","005CD918",7,,,"11100000","11100000"[/quote]

In the trace I can see that there is a RRC Connection release event which is not caused by changing the operation mode of the modem, but probably due to loss of network connection during data exchange with the server.

180	13.792083	10.165.147.123	142.250.138.192	ILP	87	[Malformed Packet]
181	13.883026	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=1 Ack=36 Win=65535 Len=0
182	13.901184	142.250.138.192	10.165.147.123	ILP	82	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
183	13.911132	10.165.147.123	142.250.138.192	ILP	106	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
184	14.014099	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=0
185	14.157135	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
186	14.381530	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [PSH, ACK] Seq=739 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
187	14.381988	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=1447 Win=5664 Len=0
188	14.541534	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [ACK] Seq=1447 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
189	14.686645	142.250.138.192	10.165.147.123	TCP	760	7276 → 64290 [PSH, ACK] Seq=2155 Ack=90 Win=65535 Len=708 [TCP segment of a reassembled PDU]
190	14.687133	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=2863 Win=5664 Len=0
191	14.766113	142.250.138.192	10.165.147.123	ILP	294	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
192	14.909668	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [ACK] Seq=31 Ack=90 Win=65535 Len=708
193	14.910125	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
194	15.069702	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [ACK] Seq=1447 Ack=90 Win=65535 Len=708
195	15.070129	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#1] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
196	15.267150	142.250.138.192	10.165.147.123	TCP	760	[TCP Spurious Retransmission] 7276 → 64290 [PSH, ACK] Seq=2155 Ack=90 Win=65535 Len=708
197	15.267425	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#2] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
198	15.343231	142.250.138.192	10.165.147.123	TCP	294	[TCP Spurious Retransmission] 7276 → 64290 [PSH, ACK] Seq=2863 Ack=90 Win=65535 Len=242
199	15.343414	10.165.147.123	142.250.138.192	TCP	52	[TCP Dup ACK 193#3] 64290 → 7276 [ACK] Seq=90 Ack=3105 Win=6372 Len=0
200	16.030242	142.250.138.192	10.165.147.123	ILP	82	[UNKNOWN PER: too long integer(per_normally_small_nonnegative_whole_number)][Malformed Packet]
201	16.042724	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [FIN, ACK] Seq=90 Ack=3135 Win=6342 Len=0
202	16.099273	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [ACK] Seq=3135 Ack=91 Win=65535 Len=0
203	16.112152	142.250.138.192	10.165.147.123	TCP	52	7276 → 64290 [FIN, ACK] Seq=3135 Ack=91 Win=65535 Len=0
204	16.112304	10.165.147.123	142.250.138.192	TCP	52	64290 → 7276 [ACK] Seq=91 Ack=3136 Win=6341 Len=0
205	18.192321			LTE RRC DL_DCCH	26	RRCConnectionRelease [cause=other]
206	19.597137			AT	23	Rcvd AT Command: +CSCON: 0  
207	20.633178			LTE RRC DL_SCH	69	SystemInformationBlockType1
208	20.633667			LTE RRC DL_SCH	79	SystemInformation [ SIB2 ]
209	20.633728			LTE RRC DL_SCH	47	SystemInformation [ SIB3 ]
210	20.709625			NAS-EPS	20	Service request
211	20.710479			LTE RRC UL_CCCH	30	RRCConnectionRequest
212	20.827484			LTE RRC DL_CCCH	65	RRCConnectionSetup
213	20.828094			LTE RRC UL_DCCH/NAS-EPS	33	RRCConnectionSetupComplete, Service request
214	20.829071			AT	23	Rcvd AT Command: +CSCON: 1  
215	20.926391			LTE RRC DL_DCCH	27	SecurityModeCommand
216	20.928283			LTE RRC UL_DCCH	26	SecurityModeComplete
217	20.928710			LTE RRC DL_DCCH	62	RRCConnectionReconfiguration
218	20.929870			LTE RRC UL_DCCH	26	RRCConnectionReconfigurationComplete
219	20.930206	10.165.147.123	54.84.73.66	TLSv1.2	151	Application Data
220	21.126373	54.84.73.66	10.165.147.123	TLSv1.2	85	Application Data

During that time, GNSS runs and actually manages to get a fix.

06:40:42.735556 M4 TRACE_GROUP_UNASSIGNED L23_AT_STRING AT_STRING <= +CSCON: 0\r\n
06:40:43.847373 M4 TRACE_GROUP_TLS SOCKET_RPC_SEND_REQ_MSG_TLS socket_id = 0, data_len = 70
06:40:43.847830 M4 TRACE_GROUP_TLS SOCKET_RPC_SEND_RES_MSG_TLS socket_id = 0, err_code = 0, num_bytes = 70
06:40:43.967490 M4 TRACE_GROUP_UNASSIGNED L23_AT_STRING AT_STRING <= +CSCON: 1\r\n

06:40:42.757803 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=3 prn=18 dop=2448 noise=316 316 cp=6499 peaklvl=161 (325, 20261, 54564, 16537, 6596) int=4 src=7
06:40:42.758872 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=0 prn=22 dop=-3609 noise=303 303 cp=1635 peaklvl=80 (232, 2512, 13181, 5690, 226) int=4 src=7
06:40:42.759909 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=1 prn=23 dop=-359 noise=222 222 cp=6604 peaklvl=112 (1129, 10090, 18785, 2824, 794) int=4 src=7
06:40:42.760886 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=2 prn=24 dop=-403 noise=266 266 cp=6855 peaklvl=84 (617, 1613, 12701, 6161, 464) int=4 src=7
06:40:42.761893 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=3 prn=27 dop=1097 noise=202 202 cp=7568 peaklvl=91 (2164, 8746, 11245, 2601, 221) int=4 src=7
06:40:42.762869 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=0 prn=32 dop=-3095 noise=261 261 cp=3377 peaklvl=168 (21909, 1768, 49562, 1042, 1217) int=4 src=7
06:40:42.762991 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -621 4x1 ms
06:40:42.821982 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -455 4x1 ms
06:40:42.866171 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.866171 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 5 iq_offset 5 iq_cnt 105 flags 00
06:40:42.866202 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 23 iq_offset 5 iq_cnt 105
06:40:42.868155 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.868155 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 6 iq_offset 6 iq_cnt 106 flags 00
06:40:42.868186 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 24 iq_offset 6 iq_cnt 106
06:40:42.870627 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.870657 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 12 iq_offset 12 iq_cnt 112 flags 00
06:40:42.870657 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 18 iq_offset 12 iq_cnt 112
06:40:42.873251 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.873251 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 9 iq_offset 9 iq_cnt 109 flags 00
06:40:42.873251 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 32 iq_offset 9 iq_cnt 109
06:40:42.877097 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.877127 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 14 iq_offset 14 iq_cnt 114 flags 00
06:40:42.877127 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 27 iq_offset 14 iq_cnt 114
06:40:42.878623 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 4 noise 1 ratio 4000 mean 0 std 1000 level 4
06:40:42.878653 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 19 iq_offset 19 iq_cnt 119 flags 00
06:40:42.878653 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 22 iq_offset 19 iq_cnt 119
06:40:42.886130 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.886130 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 125 flags 09
06:40:42.887717 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.887747 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 126 flags 09
06:40:42.890952 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.890952 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 132 flags 09
06:40:42.893118 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.893149 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 129 flags 09
06:40:42.896750 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.896781 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 134 flags 09
06:40:42.899008 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 5 noise 1 ratio 5000 mean 0 std 1000 level 5
06:40:42.899039 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 139 flags 09
06:40:42.926138 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.926138 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 165 flags 09
06:40:42.927725 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.927725 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 166 flags 09
06:40:42.930960 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.930960 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 172 flags 09
06:40:42.933127 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.933127 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 169 flags 09
06:40:42.936759 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.936759 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 174 flags 09
06:40:42.939017 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 6 noise 1 ratio 6000 mean 0 std 1000 level 6
06:40:42.939017 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 179 flags 09
06:40:42.962973 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=0 prn=10 dop=-2190 noise=5818 1679 cp=2972 peaklvl=69 (10544, 40107, 56878, 13112, 20943) int=96 src=2
06:40:43.045981 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.046011 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 285 flags 09
06:40:43.047690 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.047690 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 286 flags 09
06:40:43.050589 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.050620 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 292 flags 09
06:40:43.052725 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.052756 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 289 flags 09
06:40:43.056723 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.056723 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 294 flags 09
06:40:43.058615 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 7 noise 1 ratio 7000 mean 0 std 1000 level 7
06:40:43.058646 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 299 flags 09
06:40:43.066123 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.066123 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 305 flags 09
06:40:43.067679 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.067679 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 306 flags 09
06:40:43.070944 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.070944 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 312 flags 09
06:40:43.072714 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.072745 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 309 flags 09
06:40:43.077048 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.077078 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 314 flags 09
06:40:43.078970 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 8 noise 1 ratio 8000 mean 0 std 1000 level 8
06:40:43.078970 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 319 flags 09
06:40:43.085654 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.085654 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 325 flags 11
06:40:43.087668 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.087698 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 326 flags 11
06:40:43.090598 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.090598 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 332 flags 11
06:40:43.093070 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.093100 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 329 flags 11
06:40:43.096701 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.096732 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 334 flags 11
06:40:43.098624 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 9 noise 1 ratio 9000 mean 0 std 1000 level 9
06:40:43.098624 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 339 flags 11
06:40:43.105643 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 23 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.105673 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 23 cycle_num 0 iq_offset 5 iq_cnt 345 flags 11
06:40:43.107687 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 24 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.107687 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 24 cycle_num 0 iq_offset 6 iq_cnt 346 flags 11
06:40:43.110953 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 18 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.110953 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 18 cycle_num 0 iq_offset 12 iq_cnt 352 flags 11
06:40:43.112723 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 32 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.112753 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 32 cycle_num 0 iq_offset 9 iq_cnt 349 flags 11
06:40:43.117056 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 27 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.117056 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 27 cycle_num 0 iq_offset 14 iq_cnt 354 flags 11
06:40:43.118979 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 22 peak 10 noise 1 ratio 10000 mean 0 std 1000 level 10
06:40:43.118979 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 22 cycle_num 0 iq_offset 19 iq_cnt 359 flags 11
06:40:43.149100 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 6 noise 2 ratio 3000 mean 200 std 1400 level 4
06:40:43.149130 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 4 iq_offset 4 iq_cnt 184 flags 00
06:40:43.149130 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_START PRN 10 iq_offset 4 iq_cnt 184
06:40:43.168753 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 7 noise 2 ratio 3500 mean 200 std 1400 level 4
06:40:43.168784 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 204 flags 09
06:40:43.189108 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 8 noise 2 ratio 4000 mean 300 std 1400 level 5
06:40:43.189108 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 224 flags 09
06:40:43.248770 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 9 noise 2 ratio 4500 mean 300 std 1400 level 6
06:40:43.248770 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 284 flags 09
06:40:43.252951 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=0 prn=15 dop=2859 noise=7945 2293 cp=7124 peaklvl=62 (20640, 37491, 63533, 30346, 16513) int=96 src=2
06:40:43.255942 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_ACQ_PEAK acq=2 prn=8 dop=-677 noise=8683 2506 cp=9296 peaklvl=60 (26044, 52106, 65475, 27594, 8872) int=96 src=2
06:40:43.256125 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -289 4x1 ms
06:40:43.266165 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -953 4x1 ms
06:40:43.268759 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 10 noise 3 ratio 3333 mean 400 std 1600 level 6
06:40:43.268759 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 304 flags 09
06:40:43.276175 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -123 4x1 ms
06:40:43.286154 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1119 4x1 ms
06:40:43.296164 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 43 4x1 ms
06:40:43.306204 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1285 4x1 ms
06:40:43.308768 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 11 noise 3 ratio 3666 mean 500 std 1600 level 6
06:40:43.308768 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 344 flags 09
06:40:43.316153 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 209 4x1 ms
06:40:43.326163 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1451 4x1 ms
06:40:43.336173 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 375 4x1 ms
06:40:43.346152 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1617 4x1 ms
06:40:43.356162 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 541 4x1 ms
06:40:43.366171 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1783 4x1 ms
06:40:43.368765 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 12 noise 3 ratio 4000 mean 500 std 1600 level 7
06:40:43.368765 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 404 flags 09
06:40:43.376181 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 707 4x1 ms
06:40:43.386160 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -1949 4x1 ms
06:40:43.388754 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 13 noise 3 ratio 4333 mean 500 std 1600 level 7
06:40:43.388785 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 424 flags 09
06:40:43.396170 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 873 4x1 ms
06:40:43.406180 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2115 4x1 ms
06:40:43.416159 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1039 4x1 ms
06:40:43.426169 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2281 4x1 ms
06:40:43.436179 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1205 4x1 ms
06:40:43.446158 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2447 4x1 ms
06:40:43.456168 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1371 4x1 ms
06:40:43.466177 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2613 4x1 ms
06:40:43.468771 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 14 noise 3 ratio 4666 mean 500 std 1600 level 8
06:40:43.468771 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 504 flags 09
06:40:43.476187 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1537 4x1 ms
06:40:43.486166 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2779 4x1 ms
06:40:43.488760 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 15 noise 3 ratio 5000 mean 500 std 1600 level 9
06:40:43.488791 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 524 flags 11
06:40:43.496176 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1703 4x1 ms
06:40:43.506186 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -2945 4x1 ms
06:40:43.516165 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 1869 4x1 ms
06:40:43.526175 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3111 4x1 ms
06:40:43.536185 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2035 4x1 ms
06:40:43.546164 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3277 4x1 ms
06:40:43.556174 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2201 4x1 ms
06:40:43.566184 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3443 4x1 ms
06:40:43.576163 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2367 4x1 ms
06:40:43.586173 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3609 4x1 ms
06:40:43.588767 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_SYNC_PEAK PRN 10 peak 16 noise 3 ratio 5333 mean 600 std 1600 level 9
06:40:43.588797 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_DATA_DECODE_BIT_EDGE PRN 10 cycle_num 0 iq_offset 4 iq_cnt 624 flags 11
06:40:43.591116 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEAS_REPORT Measurement report 2 AGC 187 scnt 79015680
06:40:43.591116 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 18 0x000000a1 freq 2437 cp 6513 cn0 480 iq 0 pr 3 par 0 sf 000 dd 0 age 833
06:40:43.591147 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 22 0x000000a1 freq -3618 cp 1614 cn0 418 iq 2 pr 4 par 0 sf 000 dd 0 age 832
06:40:43.591177 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 23 0x000000a1 freq -370 cp 6601 cn0 448 iq 0 pr 4 par 0 sf 000 dd 0 age 831
06:40:43.591177 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 24 0x000000a1 freq -415 cp 6852 cn0 422 iq 2 pr 4 par 0 sf 000 dd 0 age 830
06:40:43.591208 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 27 0x00000081 freq 1086 cp 7572 cn0 429 iq 0 pr 4 par 0 sf 000 dd 0 age 829
06:40:43.591208 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 32 0x000000a1 freq -3108 cp 3354 cn0 484 iq 0 pr 3 par 0 sf 000 dd 0 age 828
06:40:43.591239 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 10 0x00000081 freq -2202 cp 2964 cn0 292 iq 2 pr 8 par 0 sf 000 dd 0 age 627
06:40:43.591269 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 15 0x00000080 freq 2877 cp 7131 cn0 269 iq 1 pr 1 par 0 sf 000 dd 0 age 337
06:40:43.591269 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_MEASUREMENT PRN 8 0x00000080 freq -631 cp 9295 cn0 261 iq 0 pr 1 par 0 sf 000 dd 0 age 334
06:40:43.591330 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 0 1 18 161 480 0 721 371 42381 0 0 170405
06:40:43.591330 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 1 1 22 161 418 0 713 861 33439 0 0 -252970
06:40:43.591361 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 2 1 23 161 448 0 726 362 55694 0 0 -25923
06:40:43.591391 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 3 1 24 161 422 0 724 337 51876 0 0 -29054
06:40:43.591422 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 4 1 27 129 429 0 715 265 52129 0 0 75983
06:40:43.591422 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 5 1 32 161 484 0 719 687 35949 0 0 -217287
06:40:43.591452 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 6 1 10 129 292 0 443 726 39154 0 0 -153962
06:40:43.591483 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 7 1 15 128 269 0 337 309 57754 0 0 201119
06:40:43.591513 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_T 79015680 1298 8 1 8 128 261 0 334 93 32562 0 0 -44128
06:40:43.593527 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_ASSISTANCE_TOA_SET Set TOA estimate tow 429689635 ms 854166667 ps week 2218, tentative
06:40:43.594840 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_BROADCAST_WEEK_SET toa_week 2218 ref_week 2218 tentative 1
06:40:43.596182 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2533 4x1 ms
06:40:43.600211 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 18 el  5 (deg) cn0 480 (cbhz) Xstd 1631 (cm) Vstd 58 (cm/s)
06:40:43.600272 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 22 el  5 (deg) cn0 418 (cbhz) Xstd 1635 (cm) Vstd 59 (cm/s)
06:40:43.600333 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 23 el  5 (deg) cn0 448 (cbhz) Xstd 1632 (cm) Vstd 58 (cm/s)
06:40:43.600394 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 24 el  5 (deg) cn0 422 (cbhz) Xstd 1635 (cm) Vstd 59 (cm/s)
06:40:43.600455 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 27 el  5 (deg) cn0 429 (cbhz) Xstd 1634 (cm) Vstd 59 (cm/s)
06:40:43.600485 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 32 el  5 (deg) cn0 484 (cbhz) Xstd 1631 (cm) Vstd 58 (cm/s)
06:40:43.600546 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 10 el  5 (deg) cn0 292 (cbhz) Xstd 1929 (cm) Vstd 77 (cm/s)
06:40:43.600974 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 15 el  5 (deg) cn0 269 (cbhz) Xstd 2212 (cm) Vstd 91 (cm/s)
06:40:43.601035 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN  8 el  5 (deg) cn0 261 (cbhz) Xstd 2364 (cm) Vstd 97 (cm/s)
06:40:43.606192 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3775 4x1 ms
06:40:43.616171 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2699 4x1 ms
06:40:43.626181 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -3941 4x1 ms
06:40:43.636191 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 2865 4x1 ms
06:40:43.646170 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -4107 4x1 ms
06:40:43.647238 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 18 el 40 (deg) cn0 480 (cbhz) Xstd 277 (cm) Vstd 40 (cm/s)
06:40:43.647299 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 22 el 15 (deg) cn0 418 (cbhz) Xstd 576 (cm) Vstd 43 (cm/s)
06:40:43.647360 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 23 el 72 (deg) cn0 448 (cbhz) Xstd 233 (cm) Vstd 40 (cm/s)
06:40:43.647421 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 24 el 49 (deg) cn0 422 (cbhz) Xstd 274 (cm) Vstd 41 (cm/s)
06:40:43.647482 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 27 el 20 (deg) cn0 429 (cbhz) Xstd 452 (cm) Vstd 42 (cm/s)
06:40:43.647910 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 32 el 37 (deg) cn0 484 (cbhz) Xstd 287 (cm) Vstd 40 (cm/s)
06:40:43.647971 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 10 el 59 (deg) cn0 292 (cbhz) Xstd 1057 (cm) Vstd 64 (cm/s)
06:40:43.648032 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN 15 el  5 (deg) cn0 269 (cbhz) Xstd 2212 (cm) Vstd 91 (cm/s)
06:40:43.648093 M4 TRACE_GROUP_GNSS_PL GNSS_PL_SCRATCH_MEAS_COV_COMPUTE PRN  8 el  5 (deg) cn0 261 (cbhz) Xstd 2364 (cm) Vstd 97 (cm/s)
06:40:43.656180 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 3031 4x1 ms
06:40:43.656973 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACKERS_MEAS_HEADER meas_cnt: 9 toa_ms: 429690895 toa_week: 2218
06:40:43.656973 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  0 prn 18 sig 1 flgs 000177f3 excl 000 el  40 az 163 psr 22331802 doppler -2437
06:40:43.657004 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  1 prn 22 sig 1 flgs 000177f3 excl 000 el  15 az 235 psr 24586586 doppler  3618
06:40:43.657004 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  2 prn 23 sig 1 flgs 000177f3 excl 000 el  72 az  46 psr 20835418 doppler  370 
06:40:43.657034 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  3 prn 24 sig 1 flgs 000177f3 excl 000 el  49 az  86 psr 21442346 doppler  415 
06:40:43.657034 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  4 prn 27 sig 1 flgs 00017773 excl 020 el  20 az 274 psr 24161577 doppler -1086
06:40:43.657065 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  5 prn 32 sig 1 flgs 000177f3 excl 000 el  37 az 242 psr 22838811 doppler  3108
06:40:43.657065 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  6 prn 10 sig 1 flgs 00017773 excl 020 el  59 az 315 psr 21628198 doppler  2202
06:40:43.657095 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  7 prn 15 sig 1 flgs 00011101 excl 029 el   0 az   0 psr        0 doppler -2877
06:40:43.657095 M4 TRACE_GROUP_GNSS_PL GNSS_PL_INSTANCE_TRACK_MEAS ch  8 prn  8 sig 1 flgs 00011101 excl 029 el   0 az   0 psr        0 doppler  631 
06:40:43.657340 M4 TRACE_GROUP_GNSS_PL GNSS_PL_TASK_SOLUTION_CHOSEN Solution chosen: 1 usable: 1 leap_s: 18 leap_valid: 1 vel_valid: 1
06:40:43.657370 M4 TRACE_GROUP_GNSS_PL GNSS_POS_REP_DOP HDOP 2.22 PDOP 4.35 GDOP 5.21 VDOP 3.74 TDOP 2.88 WSSE 0.57
06:40:43.658103 M4 TRACE_GROUP_GNSS_PL GNSS_POS_REP_PV Lat 42.117729 Lon -87.949534 Height 170.22 Speed 0.30 Heading 0.00 Accuracy 6.61
06:40:43.666190 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -4273 4x1 ms
06:40:43.676199 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 3197 4x1 ms
06:40:43.686179 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -4439 4x1 ms
06:40:43.696188 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq 3363 4x1 ms
06:40:43.706198 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ACQ_COLD_TASK 0x000003ff sig 3 freq -4605 4x1 ms
06:40:43.710989 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_PREF_WIN_CHECK track 0x80e20000 ephe 0x00000000 te 0x00000000 timedecode 1 prefwin 1
06:40:43.711020 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_TIMER_DELETE addr (nil) running 0
06:40:43.712332 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_PERIODIC_EVENT_STOP_WINEND now 79480320 >= winend 0
06:40:43.712332 M4 TRACE_GROUP_GNSS_GPS GNSS_ML_SCHED_DSP_PL dsp 2 pl 2 target 0 mem 2
06:40:43.712515 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_GPS_NWTIME_SYNC nw_tmr 3311873617 bb_tmr 1589700253 bias_nw 0 afc_frac 1677721 valid 0
06:40:43.712515 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_RF_STOP 3311869282 1589698171
06:40:43.712546 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_RF_WINDOW_ON RF on-period start 3132160000 nwcyc stop 3311869282 nwcyc len 1123 ms
06:40:43.712546 M4 TRACE_GROUP_GNSS_GPS_DEBUG GPS_RF_WRAPPER_GPS_OFF rf_hal_gps_off_wrapper, gps rf rx off time 0
06:40:43.712698 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_DSP_RFHAL_CNF dsp 4 msg 11312 errcov 0
06:40:43.712973 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_DSP_RFHAL_CNF dsp 6 msg 4391 errcov 0
06:40:43.712973 M4 TRACE_GROUP_GNSS_GPS_DEBUG GPS_RF_WRAPPER_GPS_POWER_OFF gps rf power off
06:40:43.713065 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_DSP_RFHAL_CNF dsp 7 msg 11313 errcov 0
06:40:43.714255 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_MEM_SWAP_RESP dsp 9 pl 3 target 0 mem 2 success 1
06:40:43.714346 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_MEM_DEINIT_RESP dsp 11 pl 3 target 0 mem 2
06:40:43.714346 M4 TRACE_GROUP_GNSS_GPS GNSS_ML_SCHED_DSP_PL dsp 0 pl 3 target 0 mem 0
06:40:43.715109 M4 TRACE_GROUP_GNSS_NMEA GNSS_NMEA_GGA $GPGGA,232112.89,4207.06372,N,08756.97206,W,1,05,2.22,170.22,M,,M,,*66\r\n
06:40:43.715201 M4 TRACE_GROUP_GNSS_RPC GNSS_PL_RPC_RECEIVED_FIX Fix report #8 received by RPC task, slept 0 missed 0 blocked 0
06:40:43.715415 M4 TRACE_GROUP_GNSS_DEBUG GNSS_GPS_MLOG_S 79480320 1409 0
06:40:43.715415 M4 TRACE_GROUP_GNSS_PL GNSS_PL_TASK_ML_PL_STOP_IND_HANDLE stop delete 0x00000000 stop reason 2
06:40:43.718710 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_DOWNLOAD_MSG Next download time [sample]: 61624320, length [sec] 0
06:40:43.718985 M4 TRACE_GROUP_GNSS_GPS GNSS_ML_SCHED_DSP_PL dsp 0 pl 0 target 0 mem 0
06:40:43.719016 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_LFCLK_ACCR_FSM mode 1 event 1 timer (nil)
06:40:43.719077 M4 TRACE_GROUP_GNSS_GPS GNSS_ML_SCHED_TIMEWIN_COMPLETE 3312924660
06:40:43.719107 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_ONPERIOD next 0 download 0 runtime 1128 1128 minbgn 0
06:40:43.719107 M4 TRACE_GROUP_GNSS_GPS_DEBUG GNSS_ML_SCHED_UPD_ONPERIOD now 79510257 bgn 0 end 0 dcend 0 winend 0 st 0
06:40:43.719290 M4 UNKNOWN  smc_time_window_completed_ntf_t { header : { msg_id : SMC_TIME_WINDOW_COMPLETED_NTF, sender : GNSS_ML_TASK, receiver : TASK_SMC } }

Cheers,

Markus

RE: AGPS issues with nRF9160 Dev Kit

Chetan Kale — Mon, 18 Jul 2022 07:20:45 GMT

Hi,

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/376699"]Regarding the 1st observation, that is not possible for me to say without a modem trace.[/quote]

Please find the modem traces for the CEREG Response of +CEREG: 5,5,"A21B","005CD918",7,,,"11100000","11100000" and +CEREG: 5,5,"4119","0339910F",7,,,"00001000","00011111" below.

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/376699"]I’m not sure what the last step ‘Stop’ implies though, but for getting a first fix this should work.[/quote]

"Stop" implies for shutting down the device.

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/376699"]However, the GNSS services have to become operational once in a while depending on how much the device is moving to update its position.[/quote]

Our device has functionality that the nRF9160 will be turned on (Cold start) to send (GPS and other) data to cloud after each 1 Hrs of duration (can be changed to 10 mins in future). So it will transmit the data to cloud and power supply will be cut down.

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/376699"]So, I do not have a universal answer for you here, as it depends on a lot of factors. One thing that you might want to consider though is GNSS priority mode.[/quote]

I will give a try with this as well and will let you know the same. Thanks.

devzone.nordicsemi.com/.../trace_2D00_2022_2D00_07_2D00_14T23_2D00_20_2D00_48.285Z.pcapng devzone.nordicsemi.com/.../trace_2D00_2022_2D00_07_2D00_14T23_2D00_20_2D00_48.285Z.bin devzone.nordicsemi.com/.../trace_2D00_2022_2D00_07_2D00_15T16_2D00_24_2D00_44.011Z.pcapng devzone.nordicsemi.com/.../trace_2D00_2022_2D00_07_2D00_15T16_2D00_24_2D00_44.011Z.bin

Regards,

Chetan

RE: AGPS issues with nRF9160 Dev Kit

Albrecht Markus Schellenberger — Wed, 13 Jul 2022 05:43:08 GMT

Hello Chetan,

[quote user="Chetan Kale"]1. Can you please explain what is wrong with 1st and 2nd observation logs of Chicago Unit ?[/quote]

In the 2nd observation, the A-GPS request obviously failed:

[00:00:57.209,106] <err> agps: SUPL session failed, error: -13 
[00:00:57.209,564] <err> agps: SUPL request failed, error: -13

leaving the modem doing a manual fix, which appears to be a bigger challenge due to frequently blocking. Additionally, signal quality issues and positioning of the satellites could potentially aggravate the process.

Regarding the 1st observation, that is not possible for me to say without a modem trace.

[quote user="Chetan Kale"]2. What is the meaning / abbreviation for "A21B" and "4119" in CEREG response? [/quote]

As described in the documentation of +CEREG, ‘A21B’ & ‘4119’ is the Tracking Area Code.

[quote user="Chetan Kale"]

Solution I thought:

I have created an alternative to solve this issue which is mentioned in below steps:

1. Connect to LTE.

2. Download the AGPS data.

3. Deactivates LTE without shutting down GNSS services.

4. Get the AGPS fix.

5. Activates LTE without changing GNSS.

6. Stop.

Please provide your suggestion if there are any additional steps are require or need to take care to make the firmware more robust. Or please suggest any other alternatives are there with you.

[/quote]

I’m not sure what the last step ‘Stop’ implies though, but for getting a first fix this should work. However, the GNSS services have to become operational once in a while depending on how much the device is moving to update its position. The assistance is recommended to be updated occasionally as well, normally every 2h.

So, I do not have a universal answer for you here, as it depends on a lot of factors. One thing that you might want to consider though is GNSS priority mode.

FYI: Since many of my colleagues currently are out of office due to summer vacation period in Norway, delayed answers are to be expected.

Regards,

Markus

RE: AGPS issues with nRF9160 Dev Kit

Chetan Kale — Tue, 12 Jul 2022 15:56:46 GMT

Hi,

[quote userid="100109" url="~/f/nordic-q-a/89901/agps-issues-with-nrf9160-dev-kit/376585"]Absolutely! PSM values are negotiated each time a UE attempts to connect to a carrier. Depending on the network, it can either accept, reject or renegotiate the values the device is asking for. That will differ from network to network, as each carrier has their own requirements and specifications. And that I assume is what happens here. In Chicago, the device probably is not allowed to enter PSM and thus blocking GNSS operations. I recommend setting +CEREG unsolicited result codes level 5 and cross-check the <Active-Time>. If bits 8 to 6 are 111, the UE is not allowed to enter PSM. Otherwise, you should then use the <Periodic-Tau-ext> section in %XMONITOR to cross-check the PSM value itself.[/quote]

This was my doubt and I printed the AT+CEREG response in the Firmware for both the location which you can see in logs.

Aldingen DK logs and PSM Settings:


AT+CEREG Response     - +CEREG: 5,5,"63AA","01DE7502",7,,,"00000010","11100000"

GPS_EVT_SEARCH_STARTED
GPS_EVT_AGPS_DATA_NEEDED
[00:00:13.736,755] <dbg> nrf9160_gps.start: GPS operational
[00:00:13.739,074] <dbg> nrf9160_gps.gps_thread: A-GPS data update needed
[00:00:13.741,516] <dbg> agps.init_supl: Using GPS driver to input assistance data
[00:00:13.741,516] <inf> agps: SUPL is initialized
[00:00:13.813,537] <dbg> agps.open_supl_socket: Connecting to 173.194.76.192 port 7276
[00:00:13.888,916] <inf> agps: Starting SUPL session
[00:00:13.890,930] <dbg> agps.supl_logger: ULP encoding length: 34
[00:00:13.891,571] <dbg> agps.supl_logger: Bytes sent: 34
[00:00:13.974,243] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:13.974,761] <dbg> agps.supl_logger: ULP ossDecode success, choice 3
[00:00:13.974,884] <dbg> agps.supl_logger: SUPL server responded using version 2.0.4
[00:00:13.974,975] <dbg> agps.supl_logger: SUPL response received
[00:00:13.975,189] <dbg> agps.supl_logger: ULP encoding length: 53
[00:00:13.976,074] <dbg> agps.supl_logger: Bytes sent: 53
[00:00:14.143,615] <dbg> agps.supl_logger: Bytes received: 1416, total 1416
[00:00:14.144,134] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:14.208,557] <dbg> agps.supl_logger: Bytes received: 1024, total 2440
[00:00:14.209,197] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:14.209,472] <dbg> agps.supl_logger: Bytes received: 634, total 3074
[00:00:14.210,388] <dbg> agps.supl_logger: ULP ossDecode success, choice 5
[00:00:14.214,294] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 1
--- 4 messages dropped ---
[00:00:14.224,761] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 5 messages dropped ---
[00:00:14.235,382] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:14.249,359] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:14.263,336] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 5 messages dropped ---
[00:00:14.291,717] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 49 messages dropped ---
[00:00:14.337,829] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
--- 21 messages dropped ---
[00:00:14.339,965] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.340,545] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.340,545] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.341,156] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.341,156] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.341,949] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.341,949] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.342,590] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.342,620] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.343,200] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.343,200] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.343,780] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.343,811] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.344,757] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.344,757] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.345,520] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.345,550] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.346,130] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.346,130] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.346,954] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.346,984] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.347,534] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:14.347,564] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:14.347,625] <dbg> agps.supl_logger: No integrity data available
[00:00:14.348,083] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 4
[00:00:14.348,114] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 4, size: 8
[00:00:14.349,060] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 7
[00:00:14.349,090] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 6, size: 144
[00:00:14.349,792] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 8
[00:00:14.349,792] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 7, size: 16
[00:00:14.349,853] <dbg> agps.supl_logger: SUPL POS received
[00:00GPS_EVT_OPERATION_BLOCKED
:15.349,304] <dbg> agps.supl_logger: read again
[00:00:16.257,507] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:16.258,026] <dbg> agps.supl_logger: ULP ossDecode success, choice 6
[00:00:16.258,087] <dbg> agps.supl_logger: SUPLEND:
[00:00:16.258,148] <dbg> agps.supl_logger:      Mask: 0
[00:00:16.258,209] <dbg> agps.supl_logger:      Status: 0
[00:00:16.258,239] <dbg> agps.supl_logger: SUPL END received
[00:00:16.258,331] <dbg> agps.supl_logger: SUPL session internal resources released
[00:00:16.258,392] <dbg> agps.supl_logger: SUPL session finished
[00:00:16.258,392] <inf> agps: SUPL session finished successfully
[00:00:16.259,216] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate

[00:00:33.352,416] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:00:33.356,567] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 0 Using: 0 Unhealthy: 0
[00:00:33.356,567] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 33
[00:00:34.244,659] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8: not used,     healthy
[00:00:34.244,659] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 1 Using: 0 Unhealthy: 0
[00:00:34.244,689] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 34
[00:00:35.253,143] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8: not used,     healthy
[00:00:35.253,173] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  3: not used,     healthy
[00:00:35.253,173] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:35.253,173] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:35.253,173] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:00:35.253,204] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 0 Unhealthy: 1
[00:00:35.253,204] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 35
[00:00:36.252,838] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8: not used,     healthy
[00:00:36.252,868] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  3: not used,     healthy
[00:00:36.252,868] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:36.252,899] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:36.252,899] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:00:36.252,899] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 0 Unhealthy: 1
[00:00:36.252,899] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 36
[00:00:37.254,028] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8: not used,     healthy
[00:00:37.254,028] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  3: not used,     healthy
[00:00:37.254,028] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:37.254,058] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:37.254,058] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:00:37.254,058] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 0 Unhealthy: 1
[00:00:37.254,058] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 37
[00:00:38.252,685] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8: not used,     healthy
[00:00:38.252,685] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  3: not used,     healthy
[00:00:38.252,685] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:38.252,716] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:38.252,716] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:00:38.252,746] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 0 Unhealthy: 1
[00:00:38.252,746] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 38
[00:00:39.251,129] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:39.251,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:39.251,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:39.251,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 2 Unhealthy: 0
[00:00:39.251,159] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 39
[00:00:40.249,298] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:40.249,298] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4: not used,     healthy
[00:00:40.249,298] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:40.249,328] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 2 Unhealthy: 0
[00:00:40.249,328] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 40
[00:00:41.248,168] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:41.248,199] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:41.248,199] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:41.248,199] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 3 Unhealthy: 0
[00:00:41.248,229] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 41
[00:00:42.248,931] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:42.248,962] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:42.248,962] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:42.248,962] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 3 Unhealthy: 0
[00:00:42.248,992] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 42
[00:00:43.247,680] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:43.247,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:43.247,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:43.247,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 3 Unhealthy: 0
[00:00:43.247,711] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 43
[00:00:44.251,342] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:44.251,373] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:44.251,373] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:44.251,373] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 3 Using: 3 Unhealthy: 0
[00:00:44.251,403] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 44
[00:00:45.414,337] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:45.414,367] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:45.414,367] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:45.414,367] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:45.414,398] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 4 Using: 3 Unhealthy: 1
[00:00:45.414,398] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 45
[00:00:46.419,525] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  8:     used,     healthy
[00:00:46.419,555] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:00:46.419,555] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy
[00:00:46.419,555] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  3: not used,     healthy
[00:00:46.419,555] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy
[00:00:46.419,586] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 3 Unhealthy: 1
[00:00:46.419,586] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 46

---------   A-GPS FIX   -----------
Time to fix : 33 seconds
-----------------------------------
GPS_EVT_SEARCH_STOPPED

seconds since the Epoch: 3566246400

Latitude  :  48.097130
Longitude :  8.707822
Altitude  :  669.8 m
Speed     :  0.2 m/s
Heading   :  0.0 deg
Date      :  2022-07-12
Time (UTC):  14:25:03

Menuconfig PSM settings:

Chicago DK logs and PSM Settings:

AT+CEREG Response     - +CEREG: 5,5,"A21B","005CD918",7,,,"11100000","11100000"

GPS_EVT_SEARCH_STARTED
GPS_EVT_AGPS_DATA_NEEDED
[00:00:08.692,840] <dbg> nrf9160_gps.start: GPS operational
[00:00:08.695,220] <dbg> nrf9160_gps.gps_thread: A-GPS data update needed
[00:00:08.697,723] <dbg> agps.init_supl: Using GPS driver to input assistance data
[00:00:08.697,723] <inf> agps: SUPL is initialized
[00:00:08.971,191] <dbg> agps.open_supl_socket: Connecting to 142.250.138.192 port 7276
[00:00:09.089,630] <inf> agps: Starting SUPL session
[00:00:09.091,827] <dbg> agps.supl_logger: ULP encoding length: 35
[00:00:09.092,407] <dbg> agps.supl_logger: Bytes sent: 35
[00:00:09.193,389] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:09.193,939] <dbg> agps.supl_logger: ULP ossDecode success, choice 3
[00:00:09.194,061] <dbg> agps.supl_logger: SUPL server responded using version 2.0.4
[00:00:09.194,152] <dbg> agps.supl_logger: SUPL response received
[00:00:09.194,366] <dbg> agps.supl_logger: ULP encoding length: 54
[00:00:09.194,976] <dbg> agps.supl_logger: Bytes sent: 54
[00:00:09.600,891] <dbg> agps.supl_logger: Bytes received: 708, total 708
[00:00:09.601,440] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:09.850,372] <dbg> agps.supl_logger: Bytes received: 708, total 1416
[00:00:09.850,891] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:10.081,420] <dbg> agps.supl_logger: Bytes received: 708, total 2124
[00:00:10.081,970] <dbg> agps.supl_logger: ULP ossDecode more input 4
--- 3 messages dropped ---
[00:00:10.336,639] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 1
--- 7 messages dropped ---
[00:00:10.349,548] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:10.362,365] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:10.375,335] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:10.388,458] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 29 messages dropped ---
[00:00:10.444,000] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
--- 43 messages dropped ---
[00:00:10.454,284] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.455,078] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.455,078] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.455,657] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.455,688] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.456,359] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.456,359] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.456,939] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.456,939] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.457,733] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.457,763] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.458,587] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.458,618] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.459,197] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.459,197] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.459,777] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.459,808] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.460,540] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.460,571] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.461,303] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.461,303] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.461,883] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:10.461,883] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:10.461,944] <dbg> agps.supl_logger: No integrity data available
[00:00:10.462,585] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 4
[00:00:10.462,585] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 4, size: 8
[00:00:10.463,500] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 7
[00:00:10.463,531] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 6, size: 144
[00:00:10.463,989] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 8
[00:00:10.464,019] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 7, size: 16
[00:00:10.464,080] <dbg> agps.supl_logger: SUPL POS received
GPS_EVT_OPERATION_BLOCKED
[00:00:11.343,078] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:11.343,597] <dbg> agps.supl_logger: ULP ossDecode success, choice 6
[00:00:11.343,658] <dbg> agps.supl_logger: SUPLEND:
[00:00:11.343,719] <dbg> agps.supl_logger:      Mask: 0
[00:00:11.343,780] <dbg> agps.supl_logger:      Status: 0
[00:00:11.343,841] <dbg> agps.supl_logger: SUPL END received
[00:00:11.343,933] <dbg> agps.supl_logger: SUPL session internal resources released
[00:00:11.343,994] <dbg> agps.supl_logger: SUPL session finished
[00:00:11.343,994] <inf> agps: SUPL session finished successfully
[00:00:11.344,543] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate


---------   A-GPS FIX   -----------
Time to fix : 7 seconds
-----------------------------------
GPS_EVT_SEARCH_STOPPED

seconds since the Epoch: 3566246400

Latitude  :  42.117605
Longitude :  -87.949295
Altitude  :  180.5 m
Speed     :  0.3 m/s
Heading   :  0.0 deg
Date      :  2022-07-12
Time (UTC):  14:28:19



------------------------------------------------------------------------------------------------------------------------

AT+CEREG Response     - +CEREG: 5,5,"4119","0334D410",7,,,"00001000","00011111"

GPS_EVT_SEARCH_STARTED
GPS_EVT_AGPS_DATA_NEEDED
[00:00:36.933,410] <inf> lwm2m: Deregistered as SMS listener
[00:00:37.329,833] <dbg> nrf9160_gps.start: GPS operational
[00:00:37.332,183] <dbg> nrf9160_gps.gps_thread: A-GPS data update needed
[00:00:37.334,716] <dbg> agps.init_supl: Using GPS driver to input assistance data
[00:00:37.334,716] <inf> agps: SUPL is initialized
[00:00:40.892,150] <inf> lwm2m: Deregistered as SMS listener
[00:00:43.336,090] <wrn> date_time: sntp_query, error: -116
[00:00:43.732,574] <dbg> agps.open_supl_socket: Connecting to 142.250.138.192 port 7276
[mqtt_evt_handler:350] MQTT client connected!
Subscribing to: my/subscribe/topic len 18
Connected with TLS

[00:00:45.284,942] <inf> agps: Starting SUPL session
[00:00:45.287,322] <dbg> agps.supl_logger: ULP encoding length: 35
[00:00:45.287,902] <dbg> agps.supl_logger: Bytes sent: 35
[00:00:45.894,592] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:45.895,141] <dbg> agps.supl_logger: ULP ossDecode success, choice 3
[00:00:45.895,263] <dbg> agps.supl_logger: SUPL server responded using version 2.0.4
[00:00:45.895,355] <dbg> agps.supl_logger: SUPL response received
[00:00:45.895,538] <dbg> agps.supl_logger: ULP encoding length: 54
[00:00:45.896,301] <dbg> agps.supl_logger: Bytes sent: 54
[00:00:46.896,331] <dbg> agps.supl_logger: read again
[00:00:47.205,871] <dbg> agps.supl_logger: Bytes received: 708, total 708
[00:00:47.206,420] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:48.206,512] <dbg> agps.supl_logger: read again
[00:00:49.206,542] <dbg> agps.supl_logger: read again
[00:00:50.206,665] <dbg> agps.supl_logger: read again
[00:00:51.206,176] <dbg> agps.supl_logger: read again
[00:00:52.206,237] <dbg> agps.supl_logger: read again
[00:00:53.206,604] <dbg> agps.supl_logger: read again
[00:00:54.207,092] <dbg> agps.supl_logger: read again
[00:00:55.207,427] <dbg> agps.supl_logger: read again
[00:00:56Failed to request A-GPS data, error: -13GPS_EVT_OPERATION_BLOCKED

GPS_EVT_OPERATION_BLOCKED
.207,733] <dbg> agps.supl_logger: read again
[00:00:57.207,946] <dbg> agps.supl_logger: Timeout expired
[00:00:57.208,038] <dbg> agps.supl_logger: SUPL error: 3
[00:00:57.208,190] <dbg> agps.supl_logger: ULP encoding length: 31
[00:00:57.208,953] <dbg> agps.supl_logger: Bytes sent: 31
[00:00:57.209,045] <dbg> agps.supl_logger: SUPL session internal resources released
[00:00:57.209,106] <dbg> agps.supl_logger: SUPL session finished
[00:00:57.209,106] <err> agps: SUPL session failed, error: -13
[00:00:57.209,564] <err> agps: SUPL request failed, error: -13
[00:00:57.213,256] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate
[00:00:57.215,911] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:00:57.220,184] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 0 Using: 0 Unhealthy: 0
[00:00:57.220,214] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 57
[00:00:57.220,275] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate

[mqtt_evt_handler:508] SUBACK packet id: 1234
[mqtt_evt_handler:391] MQTT PUBLISH result=0 len=7

Received Data from Server: No Data


[00:01:15.780,548] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:01:15.785,034] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:15.785,034] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:15.785,034] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:15.785,034] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:15.785,064] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:15.785,064] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:15.785,064] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:15.785,064] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:15.785,095] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:15.785,095] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 75
[00:01:16.780,883] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:16.780,914] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:16.780,914] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:16.780,914] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:16.780,944] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:16.780,944] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:16.780,944] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:16.780,944] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:16.780,975] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:16.780,975] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 76
[00:01:17.780,944] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:17.780,975] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:17.780,975] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:17.780,975] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:17.781,005] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:17.781,005] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:17.781,005] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:17.781,005] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:17.781,036] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:17.781,036] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 77
GPS_EVT_OPERATION_BLOCKED
[00:01:19.069,488] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate
[00:01:20.054,199] <inf> lwm2m: Deregistered as SMS listener


[00:01:31.191,375] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:01:31.195,617] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:31.195,648] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:31.195,648] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:31.195,648] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:31.195,648] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:31.195,678] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:31.195,678] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:31.195,678] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:31.195,678] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:31.195,709] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 91
[00:01:32.191,375] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:32.191,375] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:32.191,406] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:32.191,406] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:32.191,406] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:32.191,406] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:32.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:32.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:32.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:32.191,436] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 92
[00:01:33.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:33.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:33.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:33.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:33.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:33.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:33.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:33.191,497] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:33.191,497] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:33.191,497] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 93
[00:01:34.191,864] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:34.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:34.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:34.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:34.191,925] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:34.191,925] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:34.191,925] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:34.191,925] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  7: not used,     healthy
[00:01:34.191,955] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:34.191,955] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:34.191,986] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 94
[00:01:35.191,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:35.191,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:35.191,711] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:35.191,741] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:35.191,741] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:35.191,741] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:35.191,741] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:35.191,772] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  7: not used,     healthy
[00:01:35.191,772] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:35.191,772] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:35.191,802] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 95
[00:01:36.190,979] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:36.190,979] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:36.190,979] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:36.191,009] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:36.191,009] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:36.191,009] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:36.191,009] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:36.191,040] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  7: not used,     healthy
[00:01:36.191,040] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:36.191,040] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:36.191,070] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 96
[00:01:37.191,406] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:37.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:37.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:37.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:37.191,436] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:37.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:37.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:37.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  7: not used,     healthy
[00:01:37.191,467] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:37.191,497] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:37.191,497] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 97
[00:01:38.191,864] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:38.191,864] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:38.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:38.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:38.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:38.191,894] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:38.192,047] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:38.192,047] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:38.192,047] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:38.192,077] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 98
[00:01:39.191,497] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:39.191,528] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:39.191,528] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:39.191,528] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:39.191,558] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:39.191,558] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:39.191,558] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:39.191,558] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:39.191,589] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:39.191,589] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 99
[00:01:40.190,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:40.190,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:40.190,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:40.190,826] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:40.190,826] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:40.190,826] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:40.190,826] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:40.190,856] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:40.190,856] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:40.190,856] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 100
[00:01:41.191,802] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:41.191,802] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:41.191,802] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:41.191,833] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:41.191,833] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:41.191,833] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:41.191,833] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:41.191,864] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:41.191,864] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:41.191,864] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 101
[00:01:42.191,589] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:42.191,589] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:42.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:42.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:42.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:42.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:42.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:42.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:42.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:42.191,650] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 102
[00:01:43.191,589] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:43.191,589] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:43.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:43.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:43.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:43.191,619] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:43.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:43.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:43.191,650] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 8 Using: 0 Unhealthy: 1
[00:01:43.191,650] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 103
[00:01:44.193,023] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:44.193,054] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:44.193,054] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:44.193,054] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:44.193,084] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:44.193,084] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:44.193,084] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:44.193,084] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 25: not used,     healthy
[00:01:44.193,115] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:44.193,115] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:44.193,115] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 104
[00:01:45.192,749] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:01:45.192,749] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:01:45.192,779] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:01:45.192,779] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:01:45.192,779] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:01:45.192,779] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:01:45.192,810] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:01:45.192,810] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 25: not used,     healthy
[00:01:45.192,810] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:01:45.192,810] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:01:45.192,840] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 105
GPS_EVT_OPERATION_BLOCKED
[00:01:47.098,876] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate
[mqtt_evt_handler:512] default: 9


[00:02:03.871,643] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:02:03.876,129] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:03.876,129] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:03.876,129] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:03.876,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:03.876,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:03.876,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:03.876,159] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:03.876,190] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:03.876,190] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:03.876,220] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:03.876,220] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 123
[00:02:04.871,246] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:04.871,276] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:04.871,276] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:04.871,276] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:04.871,276] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:04.871,307] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:04.871,307] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:04.871,307] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:04.871,307] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:04.871,337] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:04.871,337] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 124
[00:02:05.871,704] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:05.871,734] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:05.871,734] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:05.871,765] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:05.871,765] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:05.871,765] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:05.871,765] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:05.871,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:05.871,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:05.871,795] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:05.871,826] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 125
GPS_EVT_OPERATION_BLOCKED
[00:02:07.269,805] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate
[00:02:08.135,498] <inf> lwm2m: Deregistered as SMS listener


[00:02:19.834,594] <dbg> nrf9160_gps.gps_thread: GPS has time window to operate
[00:02:19.839,233] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:19.839,233] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:19.839,233] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:19.839,233] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:19.839,263] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:19.839,263] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:19.839,263] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:19.839,263] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:19.839,294] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:19.839,294] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 12: not used,     healthy
[00:02:19.839,294] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 10 Using: 0 Unhealthy: 1
[00:02:19.839,324] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 139
[00:02:20.834,594] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:20.834,625] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:20.834,625] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:20.834,625] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:20.834,625] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:20.834,655] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:20.834,655] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:20.834,655] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:20.834,655] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:20.834,686] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:20.834,686] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 140
[00:02:21.833,862] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:21.833,892] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:21.833,892] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:21.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:21.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:21.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:21.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:21.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:21.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:21.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:21.833,984] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 141
[00:02:22.833,892] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:22.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:22.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:22.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:22.833,923] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:22.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:22.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:22.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:22.833,953] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:22.833,984] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:22.833,984] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 142
[00:02:23.833,709] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:23.833,740] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:23.833,740] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:23.833,740] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:23.833,770] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:23.833,770] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:23.833,770] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:23.833,770] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:23.833,801] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:23.833,801] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 9 Using: 0 Unhealthy: 1
[00:02:23.833,801] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 143
[00:02:24.835,144] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:24.835,174] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:24.835,174] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:24.835,174] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:24.835,174] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:24.835,205] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:24.835,205] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:24.835,205] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:24.835,205] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:24.835,235] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 23: not used,     healthy
[00:02:24.835,235] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 10 Using: 0 Unhealthy: 1
[00:02:24.835,235] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 144
[00:02:25.835,479] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  2: not used,     healthy
[00:02:25.835,510] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 14: not used,     healthy
[00:02:25.835,510] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 11: not used,     healthy
[00:02:25.835,510] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6: not used,     healthy
[00:02:25.835,510] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19: not used,     healthy
[00:02:25.835,540] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17: not used,     healthy
[00:02:25.835,540] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 20: not used,     healthy
[00:02:25.835,540] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 28: not used, not healthy
[00:02:25.835,540] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 24: not used,     healthy
[00:02:25.835,571] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 23: not used,     healthy
[00:02:25.835,571] <dbg> nrf9160_gps.print_satellite_stats: Tracking SV 32: not used,     healthy
[00:02:25.835,571] <dbg> nrf9160_gps.print_satellite_stats: Tracking: 11 Using: 0 Unhealthy: 1
[00:02:25.835,601] <dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 145

---------   A-GPS FIX   -----------
Time to fix : 109 seconds
-----------------------------------
GPS_EVT_SEARCH_STOPPED

seconds since the Epoch: 3566246400

Latitude  :  42.117706
Longitude :  -87.949538
Altitude  :  174.0 m
Speed     :  0.1 m/s
Heading   :  0.0 deg
Date      :  2022-07-12
Time (UTC):  15:01:54



------------------------------------------------------------------------------------------------------------------------

AT+CEREG Response     - +CEREG: 5,5,"4119","0339910F",7,,,"00001000","00011111"

GPS_EVT_SEARCH_STARTED
GPS_EVT_AGPS_DATA_NEEDED
[00:00:07.753,326] <dbg> nrf9160_gps.start: GPS operational
[00:00:07.755,676] <dbg> nrf9160_gps.gps_thread: A-GPS data update needed
[00:00:07.758,178] <dbg> agps.init_supl: Using GPS driver to input assistance data
[00:00:07.758,178] <inf> agps: SUPL is initialized
[00:00:07.954,681] <dbg> agps.open_supl_socket: Connecting to 142.250.138.192 port 7276
[00:00:08.119,903] <inf> agps: Starting SUPL session
[00:00:08.122,253] <dbg> agps.supl_logger: ULP encoding length: 35
[00:00:08.122,833] <dbg> agps.supl_logger: Bytes sent: 35
[00:00:08.276,153] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:08.276,702] <dbg> agps.supl_logger: ULP ossDecode success, choice 3
[00:00:08.276,824] <dbg> agps.supl_logger: SUPL server responded using version 2.0.4
[00:00:08.276,916] <dbg> agps.supl_logger: SUPL response received
[00:00:08.277,130] <dbg> agps.supl_logger: ULP encoding length: 54
[00:00:08.277,770] <dbg> agps.supl_logger: Bytes sent: 54
[00:00:08.521,362] <dbg> agps.supl_logger: Bytes received: 708, total 708
[00:00:08.521,911] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:08.725,097] <dbg> agps.supl_logger: Bytes received: 708, total 1416
[00:00:08.725,646] <dbg> agps.supl_logger: ULP ossDecode more input 4
[00:00:08.939,361] <dbg> agps.supl_logger: Bytes received: 708, total 2124
[00:00:08.939,880] <dbg> agps.supl_logger: ULP ossDecode more input 4
--- 1 messages dropped ---
[00:00:09.276,824] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 1
--- 7 messages dropped ---
[00:00:09.287,078] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 8 messages dropped ---
[00:00:09.303,588] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 6 messages dropped ---
[00:00:09.313,690] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 7 messages dropped ---
[00:00:09.326,995] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 2
--- 23 messages dropped ---
[00:00:09.383,697] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
--- 51 messages dropped ---
[00:00:09.395,965] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.396,728] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.396,728] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.397,308] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.397,308] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.397,949] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.397,949] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.398,712] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.398,742] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.399,322] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.399,322] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.399,963] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.399,963] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.400,726] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.400,756] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.401,306] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.401,336] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.401,947] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.401,977] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.402,740] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.402,740] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.403,320] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 3
[00:00:09.403,320] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 3, size: 32
[00:00:09.403,411] <dbg> agps.supl_logger: No integrity data available
[00:00:09.403,869] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 4
[00:00:09.403,869] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 4, size: 8
[00:00:09.404,815] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 7
[00:00:09.404,815] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 6, size: 144
[00:00:09.405,303] <dbg> nrf9160_gps.agps_write: Sent A-GPS data to modem, type: 8
[00:00:09.405,303] <dbg> agps.inject_agps_type: Injected A-GPS data, type: 7, size: 16
[00:00:09.405,364] <dbg> agps.supl_logger: SUPL POS received
[00:GPS_EVT_OPERATION_BLOCKED
00:10.405,426] <dbg> agps.supl_logger: read again
[00:00:10.453,308] <dbg> agps.supl_logger: Bytes received: 30, total 30
[00:00:10.453,857] <dbg> agps.supl_logger: ULP ossDecode success, choice 6
[00:00:10.453,887] <dbg> agps.supl_logger: SUPLEND:
[00:00:10.453,948] <dbg> agps.supl_logger:      Mask: 0
[00:00:10.454,010] <dbg> agps.supl_logger:      Status: 0
[00:00:10.454,071] <dbg> agps.supl_logger: SUPL END received
[00:00:10.454,162] <dbg> agps.supl_logger: SUPL session internal resources released
[00:00:10.454,223] <dbg> agps.supl_logger: SUPL session finished
[00:00:10.454,223] <inf> agps: SUPL session finished successfully
[00:00:10.454,803] <dbg> nrf9160_gps.gps_thread: Waiting for time window to operate


[00:00:16.312,866] <dbg> n
---------   A-GPS FIX   -----------
Time to fix : 9 seconds
-----------------------------------
rfGPS_EVT_SEARCH_STOPPED


seconds since the Epoch: 3566246400

Latitude  :  42.117715
Longitude :  -87.949566
Altitude  :  172.1 m
Speed     :  0.3 m/s
Heading   :  0.0 deg
Date      :  2022-07-12
Time (UTC):  14:54:16

Menuconfig PSM settings:

Observation:

Aldingen DK Unit: It always download AGPS data without any trouble and works fine for TTFF.

Chicago DK unit: I have observed 3 different cases.

1. AT+CEREG Response - +CEREG: 5,5,"A21B","005CD918",7,,,"11100000","11100000"

- We can see here that the RAU and TAU 6 to 8 bits are "111" but still it was able to get GPS FIX without any issue. What is wrong here ?

2. AT+CEREG Response - +CEREG: 5,5,"4119","0334D410",7,,,"00001000","00011111"

- In this case DK was in PSM mode but somehow it struggled to download the AGPS data and agps.supl_logger: Timeout happened. But finally after searching for long time it got the GPS fix. I think it can be because of the MQTT keep alive time.

3. AT+CEREG Response - +CEREG: 5,5,"4119","0339910F",7,,,"00001000","00011111"

- I think here it all went good and DK gets its TTFF within 9 Seconds.

Questions:

1. Can you please explain what is wrong with 1st and 2nd observation logs of Chicago Unit ?

2. What is the meaning / abbreviation for "A21B" and "4119" in CEREG response?

Solution I thought:

I have created an alternative to solve this issue which is mentioned in below steps:

1. Connect to LTE.

2. Download the AGPS data.

3. Deactivates LTE without shutting down GNSS services.

4. Get the AGPS fix.

5. Activates LTE without changing GNSS.

6. Stop.

Please provide your suggestion if there are any additional steps are require or need to take care to make the firmware more robust. Or please suggest any other alternatives are there with you.

Thank you!

Regards,

Chetan

RE: AGPS issues with nRF9160 Dev Kit

Albrecht Markus Schellenberger — Tue, 12 Jul 2022 11:13:00 GMT

Hello Chetan,

[quote user=""]1. If device is in Roaming status then is it will create an issues for GPS fixes? [/quote]

Nothing that I’m aware of, no.

[quote user=""]2. How to check the which operator we are connecting to? [/quote]

You can use the <plmn> section in %XMONITOR and check MCC/MNC from this list. That way you can figure out which carrier the device is connected to. If you would like to know which PLMN the device is about to connect to, you need to check the SystemInformationBlock1 in a Wireshark trace.

[quote user=""]3. Does network operator can create issues for Dev Kits to be in PSM mode? Example: network operator can reject PSM mode settings even if Dev kit asks for 10 mins (TAU) of PSM mode and 1 minute of Active mode (RAT).[/quote]

Absolutely! PSM values are negotiated each time a UE attempts to connect to a carrier. Depending on the network, it can either accept, reject or renegotiate the values the device is asking for. That will differ from network to network, as each carrier has their own requirements and specifications. And that I assume is what happens here. In Chicago, the device probably is not allowed to enter PSM and thus blocking GNSS operations. I recommend setting +CEREG unsolicited result codes level 5 and cross-check the <Active-Time>. If bits 8 to 6 are 111, the UE is not allowed to enter PSM. Otherwise, you should then use the <Periodic-Tau-ext> section in %XMONITOR to cross-check the PSM value itself.

Cheers,

Markus