WIMAX RTG TTG

Transition Gap
Transmit/receive transition gap (TTG)

- A gap between the downlink burst and the subsequent
uplink burst in a TDD transceiver
- During TTG, BS switches from transmit to receive mode
and SSs switch from receive to transmit mode ( TDD switching timing: ( 13µs < TTG < 55µs ) with SOFDMA modulation

Receive/Transmit transition gap (RTG)

- A gap between the uplink burst and the subsequent
downlink burst in a TDD transceiver
- During RTG, BS switches from receive to transmit mode
and SSs switch from transmit to receive mode ( TDD switching timing 13µs < RTG < 55µs ) with SOFDMA modulation
- The gap is an integer number of PS durations and
starts on a PS boundary