Duplex technology:
Information upload issued technical problem is solved duplex wireless communications technology, the problem is how to send and receive two-way communication on a single channel. Duplexing technique may function to multiplex transceiver channel resources, saving transmission cost.
Time Division Duplex:
It is a time division duplex mode, uplink and downlink communications for data transmission at different times. When transmission is not received, when the reception is not transmitted. Such downlink data transmission time is not the same, but the frequency can be used to make the same.
Frequency Division Duplex:
Frequency division duplex data transmission is received on a different frequency and the vertical line. GSM, WCDMA, cdma2000 and other standard techniques are frequency division duplex duplexing technique. A frequency division duplex system to establish a communication frequency will be assigned to support the uplink and downlink service, respectively, is particularly suitable for asymmetric traffic, such as voice, interactive real-time data services.