METHOD AND APPARATUS FOR ALLOCATING UPSTREAM CHANNEL RESOURCE IN HYBRID FIBER COAXIAL NETWORK
First Claim
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1. A method of allocating upstream channel resources by using a cable modem termination system (CMTS) in a hybrid fiber coaxial (HFC) network, the method comprising:
- defining a plurality of burst profiles based on an upstream channel status;
transmitting the defined plurality of burst profiles to each of a plurality of cable modems (CMs);
monitoring the upstream channel status of each CM; and
allocating resources to each CM by using burst profiles corresponding to the upstream channel status from among the plurality of burst profiles.
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Abstract
A method and apparatus for allocating upstream channel resources in a hybrid fiber coaxial (HFC) network are provided. A cable modem termination system (CMTS) previously provides cable modems (CMs) with a plurality of burst profiles through an extended interval usage code (IUC) of an upstream channel descriptor (UCD) message, and allocates resources to CMs by using an optimized burst profile according to an upstream channel status, thereby increasing transmission efficiency of an upstream channel.
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Citations
23 Claims
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1. A method of allocating upstream channel resources by using a cable modem termination system (CMTS) in a hybrid fiber coaxial (HFC) network, the method comprising:
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defining a plurality of burst profiles based on an upstream channel status; transmitting the defined plurality of burst profiles to each of a plurality of cable modems (CMs); monitoring the upstream channel status of each CM; and allocating resources to each CM by using burst profiles corresponding to the upstream channel status from among the plurality of burst profiles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of receiving upstream channel resources in a CM in a HFC network, the method comprising:
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receiving a plurality of burst profiles defined based on an upstream channel status from a CMTS; informing the CMTS of whether the CM supports all the plurality of burst profiles; transmitting a resource request message to the CMTS; and receiving resources from the CMTS by using the plurality of burst profiles determined according to whether the CM supports all the plurality of burst profiles and defined based on the upstream channel status. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus for allocating upstream channel resources in a HFC network, the apparatus comprising:
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a burst profile establishing unit defining a plurality of burst profiles based on an upstream channel status, and transmitting the defined plurality of burst profiles to each of a plurality of CMs; a monitoring unit monitoring the upstream channel status of each CM; and a resource allocating unit allocating resources to each CM by using burst profiles corresponding to the upstream channel status from among the plurality of burst profiles. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification