초록 ▼

Cable communication systems and methods to provide voice and/or data services to subscriber premises via a cable plant that conveys upstream information over an upstream path bandwidth, and a cable modem system including one or more demodulation tuners to receive and demodulate one or more upstream

Cable communication systems and methods to provide voice and/or data services to subscriber premises via a cable plant that conveys upstream information over an upstream path bandwidth, and a cable modem system including one or more demodulation tuners to receive and demodulate one or more upstream radio frequency (RF) signals. One or more RF signals include an encoded carrier wave having a carrier frequency of between 5 MHz and 16.4 MHz that is modulated using a Time Division Multiple Access (TDMA) protocol or an Advanced Time Division Multiple Access (ATDMA) protocol and quadrature amplitude modulation (QAM) with voice and/or data information constituting at least some of the upstream information. An aggregate deployed upstream capacity of the one or more RF signals to convey the upstream information in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz is at least approximately 12 Megabits per second (Mbits/s).

대표청구항 ▼

1. A cable communication system to provide voice and/or data services to a plurality of subscriber premises, the system comprising: at least a first neighborhood node having an infrastructure comprising: a first fiber optic cable;a first node optical/RF converter coupled to the first fiber optic cab

1. A cable communication system to provide voice and/or data services to a plurality of subscriber premises, the system comprising: at least a first neighborhood node having an infrastructure comprising: a first fiber optic cable;a first node optical/RF converter coupled to the first fiber optic cable; anda cable plant, coupled to the first node optical/RF converter, to convey at least upstream information from the plurality of subscriber premises over an upstream path bandwidth assigned to the first neighborhood node and including a range of frequencies; anda headend or hub comprising: a headend optical/radio frequency (RF) converter coupled to the first fiber optic cable of the first neighborhood node; anda cable modem system coupled to the headend optical/RF converter and including a plurality of demodulation tuners to receive and demodulate a plurality of upstream radio frequency (RF) signals from the first neighborhood node, each upstream RF signal of the plurality of upstream RF signals including an encoded carrier wave having a carrier frequency in the upstream path bandwidth of the first neighborhood node and being modulated, using quadrature amplitude modulation (QAM), with voice and/or data information constituting at least some of the upstream information from at least some of the plurality of subscriber premises,wherein:the plurality of upstream RF signals includes a first upstream RF signal having a first carrier frequency of greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz;the first upstream RF signal defines a first upstream physical communication channel in the upstream path bandwidth;the first upstream RF signal is encoded with at least some of the voice and/or data information using a Time Division Multiple Access (TDMA) protocol or an Advanced Time Division Multiple Access (ATDMA) protocol;the plurality of demodulation tuners includes a first demodulation tuner configured to receive and demodulate the first upstream RF signal using the TDMA protocol or the ATDMA protocol; andan aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least approximately 12 Megabits per second (Mbits/s). 2. The system of claim 1, wherein the cable plant is an ingress-mitigated cable plant. 3. The system of claim 1, wherein at least a portion of the cable plant is underground. 4. The system of claim 1, wherein the upstream path bandwidth includes a range of frequencies from approximately 5 MHz to at least approximately 42 MHz. 5. The system of claim 1, wherein the aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 35.84 Mbits/s. 6. The system of claim 1, wherein the aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 44.8 Mbits/s. 7. The system of claim 1, wherein the aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 53.76 Mbits/s. 8. The system of claim 1, wherein the aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 62.72 Mbits/s. 9. The system of claim 1, wherein the aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 71.68 Mbits/s. 10. The system of claim 1, wherein a modulation order of the QAM for the first upstream RF signal is at least 16. 11. The system of claim 1, wherein the modulation order of the QAM for the first upstream RF signal is at least 32. 12. The system of claim 1, wherein the modulation order of the QAM for the first upstream RF signal is at least 64. 13. The system of claim 1, wherein the modulation order of the QAM for the first upstream RF signal is at least 128. 14. The system of claim 1, wherein the modulation order of the QAM for the first upstream RF signal is at least 256. 15. The system of claim 1, wherein: the plurality of upstream RF signals defines a corresponding plurality of upstream physical communication channels in the upstream path bandwidth; andat least one of the plurality of upstream physical communication channels has a channel bandwidth of at least 3.2 MHz. 16. The system of claim 15, wherein the first upstream physical communication channel has a channel bandwidth of at least 3.2 MHz. 17. The system of claim 15, wherein one of the plurality of upstream physical communication channels has a channel bandwidth of 6.4 MHz. 18. The system of claim 17, wherein the first upstream physical communication channel has a channel bandwidth of 6.4 MHz. 19. The system of claim 1, wherein: each upstream RF signal of the plurality of upstream RF signals has a carrier frequency greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz;each upstream RF signal defines a corresponding upstream physical communication channel in the upstream path bandwidth;each upstream RF signal is encoded with at least some of the voice and/or data information using the TDMA protocol or the ATDMA protocol; andeach of the plurality of demodulation tuners is configured to receive and demodulate one of the plurality of upstream RF signals using the TDMA protocol or the ATDMA protocol. 20. The system of claim 1, wherein: the plurality of upstream RF signal includes a second upstream RF signal having a second carrier frequency of greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz;the second upstream RF signal defines a second upstream physical communication channel in the upstream path bandwidth;the second upstream RF signal is encoded with at least some of the voice and/or data information using a Synchronous Code Division Multiple Access (S-CMDA) protocol; andthe plurality of demodulation tuners includes a second demodulation tuner configured to receive and demodulate the second upstream RF signal using the S-CDMA protocol. 21. The system of claim 1, wherein: the cable plant passes at least 200 premises;the plurality of subscriber premises in the first neighborhood node includes at least 75 subscriber premises;the cable plant includes at least 20 amplifiers;a node mileage of the first neighborhood node is at least three miles; anda cascade for the cable plant is at least five (NODE+5). 22. In a cable communication system to provide voice and/or data services to a plurality of subscriber premises, the system comprising: at least a first neighborhood node having an infrastructure comprising: a first fiber optic cable;a first node optical/RF converter coupled to the first fiber optic cable; anda cable plant, coupled to the first node optical/RF converter, to convey at least upstream information from the plurality of subscriber premises over an upstream path bandwidth assigned to the first neighborhood node and including a range of frequencies from approximately 5 MHz to at least approximately 42 MHz; anda headend or hub comprising: a headend optical/radio frequency (RF) converter coupled to the first fiber optic cable of the first neighborhood node; anda cable modem system coupled to the headend optical/RF converter and including a plurality of demodulation tuners to receive and demodulate a plurality of upstream radio frequency (RF) signals from the first neighborhood node, each upstream RF signal of the plurality of upstream RF signals including an encoded carrier wave having a carrier frequency in the upstream path bandwidth of the first neighborhood node and being modulated, using quadrature amplitude modulation (QAM), with voice and/or data information constituting at least some of the upstream information from at least some of the plurality of subscriber premises,a method of transmitting the at least some of the upstream information from the plurality of subscriber premises to the cable modem system, the method comprising:transmitting from the at least some of the plurality of subscriber premises the plurality of upstream RF signals including a first upstream RF signal having a first carrier frequency greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz,wherein:the first upstream RF signal defines a first upstream physical communication channel in the upstream path bandwidth;the first upstream RF signal is encoded with at least some of the voice and/or data information using a Time Division Multiple Access (TDMA) protocol or an Advanced Time Division Multiple Access (ATDMA) protocol;the plurality of demodulation tuners includes a first demodulation tuner configured to receive and demodulate the first upstream RF signal using the TDMA protocol or the ATDMA protocol; andan aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 12.8 Megabits per second (Mbits/s). 23. A cable communication system to provide voice and/or data services to a plurality of subscriber premises, the system comprising: at least a first neighborhood node having an infrastructure comprising: a first fiber optic cable;a first node optical/RF converter coupled to the first fiber optic cable; andan ingress-mitigated cable plant, coupled to the first node optical/RF converter, to convey at least upstream information from the plurality of subscriber premises over an upstream path bandwidth assigned to the first neighborhood node and including a range of frequencies; anda headend or hub comprising: a headend optical/radio frequency (RF) converter coupled to the first fiber optic cable of the first neighborhood node; anda cable modem system coupled to the headend optical/RF converter and including a plurality of demodulation tuners to receive and demodulate a plurality of upstream radio frequency (RF) signals from the first neighborhood node, each upstream RF signal of the plurality of upstream RF signals including an encoded carrier wave having a carrier frequency in the upstream path bandwidth of the first neighborhood node and being modulated, using quadrature amplitude modulation (QAM), with voice and/or data information constituting at least some of the upstream information from at least some of the plurality of subscriber premises,wherein:the plurality of upstream RF signals includes a first upstream RF signal having a first carrier frequency of greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz;the first upstream RF signal defines a first upstream physical communication channel in the upstream path bandwidth;the first upstream RF signal is encoded with at least some of the voice and/or data information using a Time Division Multiple Access (TDMA) protocol or an Advanced Time Division Multiple Access (ATDMA) protocol;the plurality of demodulation tuners includes a first demodulation tuner configured to receive and demodulate the first upstream RF signal using the TDMA protocol or the ATDMA protocol; andan aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 53.76 Megabits per second (Mbits/s). 24. A cable communication system to provide voice and/or data services to a plurality of subscriber premises, the system comprising: at least a first neighborhood node having an infrastructure comprising: a first fiber optic cable;a first node optical/RF converter coupled to the first fiber optic cable; anda cable plant, coupled to the first node optical/RF converter, to convey at least upstream information from the plurality of subscriber premises over an upstream path bandwidth assigned to the first neighborhood node and including a range of frequencies, wherein: the cable plant passes at least 200 premises;the plurality of subscriber premises in the first neighborhood node includes at least 75 subscriber premises;the cable plant includes at least 20 amplifiers;a node mileage of the first neighborhood node is at least three miles; anda cascade for the cable plant is at least five (NODE+5); anda headend or hub comprising: a headend optical/radio frequency (RF) converter coupled to the first fiber optic cable of the first neighborhood node; anda cable modem system coupled to the headend optical/RF converter and including a plurality of demodulation tuners to receive and demodulate a plurality of upstream radio frequency (RF) signals from the first neighborhood node, each upstream RF signal of the plurality of upstream RF signals including an encoded carrier wave having a carrier frequency in the upstream path bandwidth of the first neighborhood node and being modulated, using quadrature amplitude modulation (QAM), with voice and/or data information constituting at least some of the upstream information from at least some of the plurality of subscriber premises,wherein:the plurality of upstream RF signals includes a first upstream RF signal having a first carrier frequency of greater than or equal to approximately 5 MHz, and less than or equal to approximately 16.4 MHz;the first upstream RF signal defines a first upstream physical communication channel in the upstream path bandwidth;the first upstream RF signal is encoded with at least some of the voice and/or data information using a Time Division Multiple Access (TDMA) protocol or an Advanced Time Division Multiple Access (ATDMA) protocol;the plurality of demodulation tuners includes a first demodulation tuner configured to receive and demodulate the first upstream RF signal using the TDMA protocol or the ATDMA protocol; andan aggregate deployed upstream capacity of the plurality of upstream RF signals to convey, in a portion of the upstream path bandwidth between 5 MHz and 16.4 MHz, the at least some of the upstream information from the at least some of the plurality of subscriber premises in the first neighborhood node is at least 53.76 Megabits per second (Mbits/s).