| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication service, used for e.g., a service with considerable deterioration of throughput caused by delay of TCP data or the like, which is capable of maximizing throughput for each subscriber request source by optimizing data transfer delay and assignment bandwidth. SOLUTION: The OLT (optical line terminal) 10 of a station-side device in a PON (passive optical network) system includes: an MPCP (multi-point control protocol) control unit 121 for receiving bandwidth requirements from each of a plurality of ONUs 20 of home-side devices; a bandwidth assignment period calculation unit 124 for calculating the following bandwidth assignment period for each request source based on the received bandwidth requirements for each request source; a dynamic bandwidth assignment calculation unit 123 for calculating the following bandwidth assignment for each request source based on the received bandwidth requirements for each request source; and the MPCP control unit 121 for transmitting transmission permission based on the calculated bandwidth assignment to each of the plurality of ONUs. COPYRIGHT: (C)2010,JPO&INPIT
|
