EM12-G why never gets 4G+

IoT Modules LTE-A Module
1

I have an EM12-G module and I don’t know why it never get an LTE-A connection but only 4G (sorry I don’t know the correct technical words)

In the EM12 module I used the sim card on my Samsumg SM-G950F phone. My phone does get LTE-A 4G+ connection

So, I don’t understand why the EM12-G module never gets 4G+ when I use the same sim card as my phone and put the module in the same location on the phone where it gets 4G+ connection.

extra information: I tried with two sim cards from another company and it allowed me to get CA in both companies …

AT+QCAINFO
+QCAINFO: "pcc",2325,75,"LTE BAND 4",1,24,-99,-14,-66,13
+QCAINFO: "scc",2175,75,"LTE BAND 4",2,24,-104,-14,-70,6,DL

OK

Here I leave information about my phone and the module located in the same place using the same sim card on the same day.

ATI

Quectel
EM12
Revision: EM12GPAR01A21M4G

OK

AT+QNETINFO="servingcell"

+QNETINFO: "servingcell","NOCONN","LTE","FDD",730,01
+QNETINFO: "servingcell","PCC",843E05,245,1125,2,-100,-11,-70,14,4,4,106B,0

OK

AT+QENG="neighbourcell"

+QENG: "neighbourcell intra","LTE",1125,245,-13,-101,-69,0,-,-,-,-,-
+QENG: "neighbourcell intra","LTE",1125,242,-19,-111,-80,0,-,-,-,-,-
+QENG: "neighbourcell intra","LTE",1125,19,-20,-117,-83,0,-,-,-,-,-

OK

AT+QNWINFO

+QNWINFO: "FDD LTE","73001","LTE BAND 2",1125

OK

AT+QCAINFO

OK

AT+QCFG="band"

+QCFG: "band",0x5af0,0x2000001e0bb1e39df,0x0

OK

AT+QCFG="nwscanmode"

+QCFG: "nwscanmode",0

cellphone-info
cellphone-info1000×966 211 KB

the band28 actually doesnt work…It has a lot of Jitter

1 Like
2

Hi,
Thanks for your query in Quectel forums.
The module currently has no way to obtain 4G+ and other information through AT commands, and the obtained network standard is the same as LTE, because LTE-A also belongs to LTE.
thanks.

3

What…I paid a lot of money for this module EM12-G and actually is working like my EC25 Cat4

Why you can not said me how get CA with this sh*t module?

4

I believe that by “4G+” @mynameis means he isn’t getting carrier aggregation on the EM12-G.
His tower allows his phone to carrier aggregate band 7 and band 28 but the em12-G isn’t allowing that to happen. According to EM12 Hardware Design v1.1 it seems like b7+b28 should allow 2x CA? Curious as to what the solution is to this issue as well, cheers.

470×800 79.7 KB

5

@User55 Hi, what exactly means 2xCA b7+b28 ? If my phone is connected to b28 its mean that also can be conected to b7 + b28 again I mean, PCC b28 + SCC b7+b28 ¿¿¿¿???

6

there is no decent answer

I’ll delete the post, bye

EDIT: admin delete post please do a good job thanks

7

Hi,
Thanks for your query in Quectel forums.
LTE-A itself also belongs to LTE, but the rate of LTE-A is higher than cat4. Our module cannot display 4G+ like a mobile phone, but you can test the uplink and downlink rate of the LTE-A module through a comprehensive tester and other instruments. It must be higher than the cat4 module.
thanks.

8

@Kerr.Yang-Q when will be available the EP06-LA

9

Hi,
Thanks for your query in Quectel forums.
EP06-ELA can currently be purchased from our dealers or original manufacturers. The latest version is EP06ELAR03A08M4G.
thanks.

10

@Kerr.Yang-Q EP06-LA is EP06-ELA ???

ep-la

11

Hi,
Thanks for your query in Quectel forums.
Sorry, there is no news of EP06-LA mass production yet, so stay tuned.
thanks.

12

image

delete the post thanks there is not a NO SOLUTION or Decent answer

13

Hi @Kerr.Yang-Q, is it possible to clarify this issue? I was planning to order an EM12-G because it supports LTE Cat 12. But from this thread I’m quite confused. The maximum it supports is Cat 4? Like @mynameis, I also have an EC25 and now I want to go a step further in DL and UL speed and started to look to the EM12-G.

14

Thanks for your query in Quectel forums.
Hi, EM12-G supports CAT12, thank you.