| 摘要 |
PROBLEM TO BE SOLVED: To provide a communications scheme for achieving high transmission efficiency, thereby enabling streaming transmission of video or others via a wireless network. SOLUTION: If permission for communications in a specified time period P1 is given, a wireless station 2 calculates the number of packets transmittable in the time period P1, and successively sends a series of data packets 109 through 112. A wireless station 3 receives series of data packets and then sends a response packet 113. Thereby, as compared to the case where a response packet is sent for each data packet received, the number of response packets sent per unit time can be reduced. This reduction can increase the number of data packets to be sent. When the wireless stations 2 and 3 completes communications, before the time period P1 has passed, a control station 1 forcefully terminates the permission for the communications. By doing so, the next pair of wireless stations 1 and 3 can be moved up giving permission for starting the communication ahead of schedule. COPYRIGHT: (C)2008,JPO&INPIT
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