Time Division Duplexing

Transmit Frame

Transmit Frame

Receive Frame

Receive Frame

3ms

6ms

handset receiver output

telco line signal

Transmit Frame

Receive Frame

Base Unit

Handset

Voice transmission delay = Receive frame (6 subframes) + G1 + G2 + Transmit preamble & control (2 subframes)

= 4.313 ms

G1

G2

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