초록 ▼

A plurality of secondary stations (10.sub.a through 10.sub.n) are coupled to a primary station (8) by way of a shared communication medium (15, 16). The secondary stations (10.sub.a through 10.sub.n) sends information to the primary channel on the upstream channel. The primary station sending inform

A plurality of secondary stations (10.sub.a through 10.sub.n) are coupled to a primary station (8) by way of a shared communication medium (15, 16). The secondary stations (10.sub.a through 10.sub.n) sends information to the primary channel on the upstream channel. The primary station sending information to the secondary stations (10.sub.a through 10.sub.n) on a downstream channel. The power level of a secondary station (10.sub.n) is set at the power level stored in secondary station memory (55). The secondary station (10.sub.n) transmits a message to the primary station on the upstream channel. The primary station (8) receives the message, determines the power level of the received message, and sets the power level of the secondary device to the nominal power level.

대표청구항 ▼

[ We claim:] [1.] A method for setting a transmit power level by a secondary station in a communication system, the secondary station coupled to a primary station by way of a shared channel, the transmit power level falling between a predetermined minimum transmit power level and a predetermined max

[ We claim:] [1.] A method for setting a transmit power level by a secondary station in a communication system, the secondary station coupled to a primary station by way of a shared channel, the transmit power level falling between a predetermined minimum transmit power level and a predetermined maximum transmit power level, inclusive, the method comprising the steps of:receiving a first invitation for several of the secondary stations including the secondary station to contend for access to the shared channel;transmitting a first response at a first transmit power level;receiving a second invitation for the secondary station to contend for access to the shared channel;determining whether the second invitation indicates that a first invalid message was received on the shared channel;transmitting second response at the first transmit power level if the second invitation indicates that the first invalid message was received on the shared channel;receiving a third invitation for the secondary station to contend for access to the shared channel;determining whether the third invitation indicates that a second invalid message was received on the shared channel; andif the third invitation indicates that the second invalid message was received on the shared channel, transmitting a third response at a second transmit power level different from the first transmit power level.