9.6 AT+FTPSTATUS–Querying FTP Link Status ............................................................................ 98
10 Remote Upgrade Via FTP ................................................................... 100
10.1 AT+FTPGETFURC – Switching the Unsolicited Report of Download Start for FTP Upgrade 100
10.2 AT+FTPGETF – FTP Upgrade ............................................................................................... 101
10.3 AT+FTPFREAD–Reading Other Upgrade Files from the FTP Server .................................. 103
11 HTTP Commands ................................................................................ 104
11.1 AT+HTTPPARA – Setting HTTP Parameters ......................................................................... 104
11.2 AT+HTTPSETUP – Setting Up HTTP Connection ................................................................. 105
11.3 AT+HTTPACTION – Executing HTTP Request ..................................................................... 105
11.4 AT+HTTPCLOSE – Closing an HTTP Socket ........................................................................ 109
11.5 +HTTPRECV – Unsolicited HTTP Data Output ..................................................................... 109
11.6 +HTTPCLOSED – HTTP Socket Closed ................................................................................ 111
12 HTTPS Commands ............................................................................. 112
12.1 AT+HTTPSPARA – Setting HTTPS Parameters ..................................................................... 112
12.2 AT+HTTPSSETUP – Setting up an HTTPS Connection ......................................................... 113
12.3 AT+HTTPSACTION – Executing HTTPS Request ................................................................. 114
12.4 AT+HTTPSCLOSE – Closing HTTPS Socket ......................................................................... 116
12.5 +HTTPSSEND–Unsolicited Report of HTTPS Sending Result ............................................ 117
12.6 +HTTPSRECV–Unsolicited Report of HTTPS Data Received ............................................. 118
12.7 +HTTPSCLOSED – HTTPS Socket Closed ........................................................................... 119
13 GNSS Commands ............................................................................... 120
13.1 AT+GNSSPWR–GNSS Switch .............................................................................................. 120
13.2 AT+GNSSSTATE–GNSS State ............................................................................................ 121
13.3 AT+GNSSNMEA–Obtaining NMEA Data ............................................................................. 121
13.4 AT+GNSSSEL–Selecting the Assist Positioning System ..................................................... 125
14 Time Synchronization Commands ....................................................... 126
14.1 AT+UPDATETIME–Updating Time to Network ..................................................................... 126
15 GSM Location Command .................................................................... 129
15.1 AT+CIPGSMLOC – Obtaining the Location of the Module ................................................... 129
16 PSM&eDRX Commands ..................................................................... 132
16.1 AT+CPSMS–Setting PSM Mode .......................................................................................... 132
16.2 AT+CEDRXS–Setting eDRX Mode ...................................................................................... 134
17 MQTT Command ................................................................................. 138
17.1 AT+MQTTCONNPARAM – Setting User Parameters ............................................................ 138
17.2 AT+MQTTWILLPARAM – Will Settings .................................................................................. 139
17.3 AT+MQTTCONN – Connection Command ............................................................................ 140
17.4 AT+MQTTSUB – Subscription................................................................................................ 141
17.5 AT+MQTTUNSUB – Unsubscription ...................................................................................... 142
17.6 AT+MQTTPUB – Publishing Topic ......................................................................................... 143
17.7 AT+MQTTPUBIN – Publishing Long Message ...................................................................... 144
17.8 AT+MQTTDISCONN – Disconnecting to the MQTT Server .................................................. 145
17.9 +MQTTSUB – Receiving Topic Content ................................................................................. 145
17.10 +MQTTDISCONNED – Receiving Topic Content ................................................................ 146
17.11 AT+MQTTSTATE – Querying MQTT Connection Status ..................................................... 147