PACKET ROUND TRIP TIME MEASURING METHOD

摘要

When a source device (10) measures a packet round trip time RTT from the source device (10) to a sink device (20), a band management unit (28) allocates a reservation period (CTBt) for transmitting an RTT test command from the source device (10) to the sink device (20) and a reservation period (CTBr) for transmitting an RTT response setting request command from the sink device (20) to the source device (10) within a super frame period. At a start timing of the reservation period (CTBt), a controller (13) transmits the RTT test command and starts measuring the RTT. Upon receiving the RTT response setting request command, the controller (13) finishes measuring the RTT.