EVK-R6 - User guide

UBX-21035387 - R02

Appendix

Page 18 of 23

C1-Public

C Examples of AT commands

For the complete description and syntax of the AT commands supported by LARA-R6 series modules,

see the u-blox AT commands manual [1].

C.1 Define the initial default bearer for connectivity

To change the PDN settings for the initial default EPS bearer established during LTE attach, edit the

<cid>=1 PDN by means of the +CGDCONT AT command.

Command sent by DTE (user)

DCE response (module)

Description

AT+COPS?

+COPS: 2

OK

The module is not registered.

AT+CEREG=2;+CGEREP=1,1

OK

Enable a set of registration URCs.

AT+CGDCONT?

+CGDCONT: 1,"IPV4V6","","0.0.0.0

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",

0,0,0,2,0,0,0,0,0,0

OK

Read IP type and APN for EPS attach

bearer.

AT+CGDCONT=1,"IPV4V6","broadband"

OK

Set the APN name ("broadband" for

example) and the PDP type ("IPV4V6"

for example) for EPS attach bearer.

AT+COPS=0

OK

+CEREG: 1,"0001","01a2d001",7

+CGEV: ME PDN ACT 1

Trigger a network registration and wait

for attach complete.

The same procedure can also be applied for the PDP context associated with <cid>=1 in 2G and 3G

RAT. During the LTE attach, the initial default EPS bearer is automatically activated by the network,

while in 2G and 3G RAT, it is necessary to manually activate the PDP context by means of +CGACT AT

command.

Command sent by DTE (user)

DCE response (module)

Description

AT+CGACT=1,1

OK

Activate the PDP context associated

with <cid>=1.

It is possible to verify the status of the initial default EPS bearer or a PDP context by the means of the

+CGDCONT and +CGCONTRDP AT commands.

Command sent by DTE (user)

DCE response (module)

Description

AT+CGDCONT?

+CGDCONT: 1,"IP","default.mnc321.

mcc654.gprs","192.168.20.6",0,0,0

,2,0,0,0,0,0,0

OK

Read IP type and APN for EPS attach

bearer.

Context <cid>=1 has IP type "IP" and

APN "default.mnc321.mcc654.gprs".

AT+CGCONTRDP=1

+CGCONTRDP: 1,5,"default.mnc321.m

cc654.gprs","192.168.20.6.255.255

.255.0","192.168.20.1","185.215.1

95.114","","","",0,0,1500,0,0

OK

Read context <cid>=1 dynamic

parameters.

<cid>=1 is currently active with IPv4

address 192.168.20.6/24, gateway

192.168.20.1 and DNS server

185.215.195.114.

C.2 Data connection using internal TCP/IP stack

The internal TCP/IP stack is automatically mapped, configured, and activated to the initial default

EPS bearer established during LTE attach or to the first activated PDP context in 2G or 3G RAT.

Consequently the +UPSD and +UPSDA commands are no longer required to perform these tasks

manually.