| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a communication repeater and a jitter suppression method that can suppress jitter (change in delay) caused when the communication repeater transfers real time data (video and audio or the like) employing the RTP(rapid transport protocol) in a packet communication system and can suppress jitter (change in delay) when each transfer frame reaches a destination terminal. SOLUTION: The communication repeater is configured such that the repeater extracts a frame sequence number, a UDP(user datagram protocol) port number and time stamp information of the RTP frame from in-header information of the RTP frame received from an upper-stream communication unit, detects/ outputs a difference from the time stamp information of the just preceding frame, detects/outputs a difference between the just preceding RTP frame reception time and a current time obtained from an internal timer, compares the internal timer difference with the time difference output, and decides the priority of transfer processing to suppress jitter in the data stream of the frame on the basis of the difference (jitter).</p> |
