| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize advantageous utilizing of a system resources and the delay of an allowable range by transmitting a data block to a hub station from a remote unit through a contention type access communication resource and transmitting an information message and a data block to the hub station from the remote unit through a non-contention type access channel. SOLUTION: Whenever the remote unit first tries to access to a system by way of the contention type access communication resource through the use of the reserved block of a resource, the unit informs the hub station. Because of information to the hub station, the hub station can accurately know the occurrence of collision (or another fault mode) and can prescribe the remote unit involved in this collision. When a collision occurs, the hub station assigns a resource in the non-contention type access communication resource at the time of resending the data block to each remote unit involved in the collision.</p> |
