Wireless DOCSIS modem
First Claim
1. A user-device for wirelessly communicating with a network, comprising:
- a means for modulating and demodulating communication signals, said means having an input and an output;
a means for upconverting an upstream communication signal received from the output of the modulating/demodulating means, said upconverting means having a signal input, a oscillator input and an output, the signal input being coupled to the output of the modulating/demodulating means; and
an oscillator means for producing a periodic signal at a predetermined frequency at an output, said output being coupled to the oscillator input of the upconverter means.
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Accused Products
Abstract
A user-device combines a DOCSIS modem and an upconverter radio circuit to convert upstream traffic signals from the modem output from the 5-42 MHz range to the Lower 700 MHz Band. This upconverted signal is amplified and transmitted from an antenna, which may be located external to the device, or inside the device. A local oscillator provides the upconverter radio circuit with a periodic signal having a frequency that is sufficiently different from the combined signal from the upconverter so that filtering the periodic signal from the combined signal does not require as precise tuning as if the carrier frequencies of the periodic signal and the combined signal were closer in frequency. A diplex filter, with the antenna electrically on one side and the upconverter radio circuit and a downstream amplifier on the other, separates upstream and downstream traffic from a single antenna connection.
45 Citations
22 Claims
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1. A user-device for wirelessly communicating with a network, comprising:
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a means for modulating and demodulating communication signals, said means having an input and an output;
a means for upconverting an upstream communication signal received from the output of the modulating/demodulating means, said upconverting means having a signal input, a oscillator input and an output, the signal input being coupled to the output of the modulating/demodulating means; and
an oscillator means for producing a periodic signal at a predetermined frequency at an output, said output being coupled to the oscillator input of the upconverter means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A user-device for wirelessly communicating with a network, comprising:
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a DOCSIS modem for modulating and demodulating communication signals, said DOCSIS modem having an input and an output;
a means for upconverting an upstream communication signal received from the output of the modulating/demodulating means, said upconverting means having a signal input, a oscillator input and an output, the signal input being coupled to the output of the modulating/demodulating means; and
an oscillator means for producing a periodic signal at a predetermined frequency at an output, said output being coupled to the oscillator input of the upconverter means. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for wirelessly communicating with a network with a user-device, comprising:
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receiving an upstream communication signal having a first carrier frequency from a DOCSIS modem that is part of the device;
upconverting the upstream communication signal first carrier frequency to a second carrier frequency using an upconverter that is a component of the device;
and emitting the upconverted communication signal from an antenna that is a component of the device. - View Dependent Claims (17, 18, 19, 20, 21)
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22. The method of method 16 wherein the device further comprises an antenna for wirelessly receiving downstream signals and for emitting a signal received from the output of the upconverter means, wherein the upconverted signal is provided to the antenna for wireless transmission to a remote location.
Specification