2g online means that the other party's current network status is to log in to QQ under the 2G network; when the other party logs in to QQ using 3G/4G/WIFI status, the online status will also change to the current network status. The G in 2G refers to Generation, which means generation, so 1G means the first generation mobile communication system, and 2G, 3G, and 4G refer to the second, third, and fourth generation mobile communication systems respectively.
The operating environment of this tutorial: iOS 12.3.1 system, iPhone 11 mobile phone.
What does 2g online mean?
The other party's QQ shows 2G online status, which means that the other party's current network status is logged in to QQ under the 2G network.
When the other party logs in to QQ using 3G/4G/WIFI status, the online status will also change to the current network status.
2g online is QQ2G online. Maybe the mobile phone was logged in to QQ under the 2G network at the time. When the other party logs in to QQ using 3G/4G/WIFI status, the online status will also change to the current network status. . The G in 2G refers to Generation, so 1G means the first generation mobile communication system, and 2G, 3G, and 4G refer to the second, third, and fourth generation mobile communication systems respectively.
Extended information:
Compared with the previous generation that directly transmits voice in the form of analog signals, the 2G mobile communication system transmits the voice system in a digital manner. In addition to the call function, some systems also introduce short message (SMS, Short message service) function. Data transmission and faxing are also supported in some 2G systems, but due to the slow speed, they are only suitable for emails, software and other information with low transmission volume.
2G technology can basically be divided into two categories according to the form of multiplexing technology used. One is a system developed based on TDMA, represented by GSM, and the other is based on CDMA. Systems developed from specifications, such as cdmaOne.
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