APPARATUS AND METHOD FOR INCREASING UPSTREAM CAPACITY IN A BROADBAND COMMUNICATIONS SYSTEM
First Claim
1. A method of operating a gateway modem for providing a legacy service to a legacy device, the method comprising the steps of:
- receiving from a communications network a first signal in a first frequency band, the first signal providing an enhanced broadband service over the communications network using a crossover point sufficiently high that a legacy device is unable to receive a forward control carrier contained in the first signal;
downcoverting the first signal from the first frequency band to a translated first signal in a second frequency band, the first and second frequency bands being non-overlapping; and
combining the translated first signal in the second frequency band with the first signal in the first frequency band to generate combined programming material comprising the first signal in the first frequency band and the translated first signal in the second frequency band for transmission to a legacy device, wherein the first signal in the second frequency band comprises the forward control carrier and is configured for reception by the legacy device.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for providing enhanced broadband services over a communications network includes the steps of: receiving from the communications network at least first signals in a first frequency band, the first signals comprising programming material that has been converted from a second frequency band and/or material originally generated in the first frequency band to be converted to the second frequency band, the first and second frequency bands being non-overlapping; translating one or more first signals from the first frequency band to the second frequency band; and combining the one or more first signals translated to the second frequency band with the first signals in the first frequency band to generate combined programming material comprising one or more signals in the first frequency band and one or more signals in the second frequency band for reception by receiving location equipment.
22 Citations
17 Claims
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1. A method of operating a gateway modem for providing a legacy service to a legacy device, the method comprising the steps of:
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receiving from a communications network a first signal in a first frequency band, the first signal providing an enhanced broadband service over the communications network using a crossover point sufficiently high that a legacy device is unable to receive a forward control carrier contained in the first signal; downcoverting the first signal from the first frequency band to a translated first signal in a second frequency band, the first and second frequency bands being non-overlapping; and combining the translated first signal in the second frequency band with the first signal in the first frequency band to generate combined programming material comprising the first signal in the first frequency band and the translated first signal in the second frequency band for transmission to a legacy device, wherein the first signal in the second frequency band comprises the forward control carrier and is configured for reception by the legacy device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of operating a gateway modem for providing a legacy service to a legacy device, the method comprising the steps of:
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receiving from a communications network a first signal in a first frequency band, the first signal providing an enhanced broadband service over the communications network using a crossover point sufficiently high that a legacy device is unable to receive a forward control carrier contained in the first signal; downcoverting the first signal from the first frequency band to a translated first signal in a second frequency band, the first and second frequency bands being non-overlapping; combining the translated first signal in the second frequency band with the first signal in the first frequency band to generate combined programming material comprising the first signal in the first frequency band and the translated first signal in the second frequency band for transmission to a legacy device, wherein the first signal in the second frequency band comprises the forward control carrier and is configured for reception by the legacy device; receiving from the legacy device a second signal comprising upstream data in a third frequency band for transmission to the communications network, the first, second and third frequency bands being non-overlapping; combining the second signal with a third signal comprising upstream data in a fourth frequency band overlapping said second frequency band; and transmitting a combined signal comprising the second signal in the third frequency band and a third signal in the fourth frequency band to the communications network.
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Specification