| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent collision of wireless signals from wireless terminals. <P>SOLUTION: A wireless base station 1 allocates an up-link time slot U1 of a frequency f1 to a wireless terminal 2A, and allocates an up-link time slot U2 of the frequency f1 to a wireless terminal 2B. In this condition, the wireless base station 1, when detecting collision of two wireless signals from the wireless terminals 2A and 2B, shifts the frequency of a part of radio units 106a to 106h in a wireless communication unit 105 to a frequency f2 and also allocates an up-link time slot of the frequency f2 to the wireless terminal 2B. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
