连接时是否可以从 GSM/CDMA 调制解调器读取信号质量？
我知道我可以使用 AT 命令与 GSM/CDMA 调制解调器通信。但是，据我所知，这在连接时不起作用 - 有没有办法在连接时读取状态信息（信号强度、GSM/HSDPA 模式等）？
我不确定调制解调器管理器是否会生成这些信息，我用诺基亚手机尝试过，但没有 - 但我主要希望它适用于高通芯片组调制解调器（华为），有人有从这些调制解调器读取实时信号信息的经验吗？
I know I can communicate with GSM/CDMA modems using AT commands. However, as far as I know this doesn't work when connected - is there a way to read status information (signal strength, GSM/HSDPA mode etc) while connected?
I am not sure if modemmanager will produce the information, I tried it with Nokia phone and it didn't - however I would like it mostly for the Qualcomm chipset modems (Huawei), does anyone have any experience reading realtime signal information from these modems?
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据我所知，您可以使用 AT+CSQ 命令来接收信号质量。这与调制解调器是否连接到运营商无关。我的经验是使用 Wavecom、Siemens 和 Sierra Wireless 调制解调器。
请求：
响应：
其中
也有可能定期获得未经请求的更新，但这通常是调制解调器/制造商特定的。例如，Wavecom 调制解调器使用 AT+CCED，Siemens 使用 AT^SMOND。
As far as I am aware you can use AT+CSQ command to receiving the signal quality. This is independent of whether the modem is connected to an operator or not. My experiences have been with Wavecom, Siemens, and Sierra Wireless modems.
Request:
Response:
Where
<rssi>is received signal strength indication and<ber>is the bit error rate.There is also the possibility of getting regular unsolicited updates but this is normally modem/manufacturer specific. For example Wavecom modems use AT+CCED, Siemens use AT^SMOND.
高通提供的一些软件工具可以做到这一点。
通常，我使用 QXDM 来检查 Qualcomm 芯片组调制解调器使用 USB 电缆的实时状态。
Qualcomm provide some software tools can do this.
Usually, I use QXDM to check the realtime status with Qualcomm chipset modems use USB cable.