| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a multiple address communication system that can conduct multi-cast communication without deteriorating communication performance of clients, other than those for multi-cast communication, when conducting the multi-cast communication. SOLUTION: In the case of conducting multi-cast communication, the presence/absence of multi-cast distribution request is respectively registered in internal tables 105, 107, 113 of a server 101 and WAPs(wireless access points) 102, 111 in cross-reference with client information of clients having already been registered. The server 101 and the WAPs 102, 111 respectively calculate a transmission time interval on the basis of the contents of the tables 105, 107, 113 and respectively transmit a data frame at this interval. Furthermore, buffers 108, 114 of the WAPs 102, 111 hold data frames from the server 101 and resend the data frames to a client requesting re-sending of the data frames.</p> |
