| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid the interference of a control channel between base stations connected to a controller or a server in a LAN by setting the control channel transmission periods of the respective base stations to be different values. SOLUTION: The transmission period of j-th control channel Cij of a base station CSi has different values Ti at every base station CSi (i=1, 2 and 3). When a peculiar transmission period of the control channel exists by each base station CSi, a mobile station needs to learn the transmission period of each base station CSi. This period is informed from the base station CSi to the mobile station as a signal. Thus, the control channels C12 and C22 (hatched channels) of the base stations CS1 and CS2 interfere each other but this interference is avoided in the next control channels C13 and C23 where one period has passed similarly, even if control channels C23 and C33 interfere each other, the interference is avoided from the next period and a communication impossible state owing to the continuation of interference for a long period of time does not occur.</p> |
