Abstract: A processor receives health signals from sensors in a wireless transceiver that represent measured values of operating condition parameters. The signals are sent from the processor to and combined with RF session data as either out-of-band digital signals or in-band RF signals as a composite signal to a user device such as a cable modem at an RF signaling interface of the transceiver. Decoder circuitry at the user device extracts information contained in the received health signals and converts them into format, such as MIB variable values, recognizable by the modem's processor. The MIBs are then used by the cable modem's monitoring and alarm feature set to notify the user or technician on the operating conditions at the wireless transceiver.

Abstract: A direct broadcast satellite system delivers video content to a subscriber and a CATV network is used to simultaneously provide data services to the same subscriber. Since the CATV system is not used to deliver video/television programming channels, these same channels can be used to transport downstream and upstream data signals. To provide upstream performance and immunity to noise, upstream data traffic signals are upconverted at a subscriber's cable modem for transmission by channels having center frequencies higher than 54 MHz. Cable modem circuitry combines the conventional output signal with the output of a local oscillator to raise the carrier frequency of upstream traffic before it is introduced to the CATV network. Thus, upstream traffic can be carried by channels higher than 54 MHz. This upstream signal is received by a block converter that lowers the carrier frequency back to a conventional channel frequency before processing by a standard CMTS.