What is c-net? What kind of mobile phone is C network?

Only the network whose mobile phone network standard is CMDA can use C network.

Mobile phone formats mainly include GSM, CDMA and 3G.

The first generation of analog mobile phones (1G), the second generation of digital mobile phones such as GSM and TDMA (2G), the second generation of CDMA and the third generation of 3G.

C network is CDMA frequency band: CDMA1x: CDMA1x. The spreading rate is SR 1, which means that both the forward channel and the reverse channel use single-carrier direct sequence spreading with the chip rate of 1.2288 Mbit/sec/sec. ..

Therefore, it can be easily backward compatible with IS-95(A/B) to achieve a smooth transition.

Because CDMA 1X adopts new technologies such as reverse coherent demodulation, fast forward power control, transmit diversity and Turbo coding, its capacity has been greatly improved compared with IS-95.

Under the same conditions, the capacity of ordinary voice service is roughly twice that of IS-95 system.

CDMA 1X network can be used as a bearing platform for voice services and packet data wireless access to the internet.

CDMA 800MHZ: When China Unicom just started to build a CDMA network, it happened that the Great Wall of Telecom was handed over to China Unicom, which made China Unicom easily obtain the two-way frequency resources of10mhz and China Unicom have valuable frequency resources.

Therefore, China Unicom established a CDMA network by using its 800MHZ resources.