FDD (Frequency Division Duplex)

A means of providing duplex (bidirectional) communications in

wireless networks, FDD makes use of separate frequencies for forward and backward channels. FDD is used with both analog and digital wireless technologies, including cordless telephony and cellular. See also analog, cellular, channel, cordless telephony, digital, duplex, frequency, and wireless.

• 28
• 2B1Q (2 Binary 1 Quaternary)
• 2B+D
• 2 Binary 1 Quaternary (2B1Q)
• 2 cps, 2 Hz
• 2G (2nd Generation)
• 3
• 30
• 30B+D
• 30B+D
• 32
• 34
• 36
• 38
• 3 cps, 3 Hz
• 3G (3rd Generation)
• 3GPP
• 3GPP2
• 3GPP (3rd Generation Partnership Project)
• 3rd Generation Partnership Project (3GPP)
• +3V
• -3V
• +3V
• -3V
• +3V