| 摘要 |
<p>The transfer time of mobile communication is shortened by preferentially securing a required number of time slots used for transfer. A base station (BS) which has received a packet (P1) transmits a signal Busy and an echo signal at the end of a first time slot (TS) starting at time (t4). The station (BS) recognizes that another packet (1) following the packet (P1) is present, and transmits a signal Reserve at the end of a second time slot (TS) starting at time (t5). A mobile station (MS-A) recognizes that the first time slot has been secured by detecting the signal Busy and the echo signal and that the second time slot is also secured by detecting the signal Reserve. Thus high-speed transfer is performed by continuously using the first and second time slots.</p> |
