GSM调制解调器可以获取哪些信息? [英] What are the information that can GSM modem get?

问题描述

我想了解GSM modems.我需要低级别的信息.

调制解调器能否为我获取第3层消息，Rx和Tx级别，Rx Qual.，C/I，BCCH，BISC，ARFCN和...

修改

注意:我不仅在询问嵌入式调制解调器，还询问嵌入式和外部调制解调器.

感谢和问候

解决方案

对于低级别信息，最好的选择是AT命令.请参阅 AT命令手册，以获得可以通过AT命令获得的信息.
尝试掌握特定于制造商的特定于您所选择的调制解调器的命令的手册. 使用AT + CLAC可以获取特定调制解调器的所有受支持的AT命令.

L3消息通过空中接口到达.如前所述，芯片组制造商拥有自己的接口来访问此信息，但这些接口不是公开的.

I want to know about GSM modems. I need low level info.

Can the modem get me Layer 3 Messages, Rx and Tx level, Rx Qual., C/I, BCCH, BISC, ARFCN and ...

Edit

Note: I'm not asking about embedded modems only, I'm asking on both embedded and external modems.

Thanks and Best Regards

解决方案

Your best bet for low level information is AT commands. See the answer to this SO question for specific commands for the information that you want.

Although it's about Android, you can assess AT commands on any operating system, as long as the modem device exposes a modem port (It may sound obvious that any modem would expose a modem port, but this is not the case. Some modems appear in Windows as network adapters, for example).

But note that Layer 3 messages aren't available over the AT interface. You would need a diagnostic tool from the chipset manufacturer to read the air interface messages. These are not usually available unless you're a partner company or customer of the manufacturer.

Edit:
Embedded and external modems are treated the same. The best interface to use depends on the driver. AT commands work with the vast majority of modems. Read the AT command manual for information that you can get via AT commands.
Try to get hold of a manual of manufacturer specific commands that are particular to your chosen modem. Use AT+CLAC to get all the supported AT commands of your particular modem.

L3 messages arrive via the air interface. As I said before, the chipset manufacturers have their own interfaces to access this information, but these are not public.

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