| 摘要 |
A communication system having a site (42) employing a plurality of communication channels. Each channel is assigned a desired received signal strength threshold. A channel is assigned to a subscriber unit (43a, 43b) based upon the strength of the signal received at the site (42) and the power control range of the subscriber unit (43a, 43b). The selection of a channel may be performed either by the site (42) or the subscriber unit (43a, 43b). In an FDMA environment (50), each separate frequency division channel may be assigned different received signal strength thresholds. In a non- overlapping time interval (TDMA) environment (70), each separate time division channel may be assigned different received signal strength thresholds. In another embodiment (80), a combination of FDMA and TDMA environments can be used. <IMAGE>
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