| 摘要 |
<p>A time division multiplexed system (100) is disclosed in which communication messages among a wide area site (W) and a plurality of substantially scattered local sites (L1-L6) are communicated on a radio frequency channel which is divided into a plurality of time slots (550), wherein at least one of the time slots is further divided into a plurality of sub slots (510-540). Communication units (103) operating in the wide area site (W) communicate communication messages during the time slots, and the communication units (103) operating in the local sites (L1-L6) communicate communication messages during the sub-slots which are assigned to each of the local sites.</p> |
