| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain an expected throughput while reducing transmission power of a wireless terminal by controlling the transmission timing of a request for obtaining permission of transmitting an uplink signal from a wireless base station. <P>SOLUTION: A wireless terminal 2 estimates the receiving quality of an uplink signal at a wireless base station 1 based on a downlink signal received therefrom, and controls transmission timing of a transmission request (SI) for obtaining permission of transmitting an uplink signal to the wireless base station 1 based on the estimation results. <P>COPYRIGHT: (C)2008,JPO&INPIT |
