Method of allocating upstream bandwidth
AssigneeElectronics and Telecommunications Research Institute
InventorsEun Jung Kwon, O Hyung Kwon, Soo In Lee
Life of this patent
Estimating the term…
Abstract
A cable modem termination system receives a bandwidth request message, and collects information on the basis of the bandwidth request message. Then, time bandwidth size information is generated on the basis of the bandwidth request message and the collected information, and a bandwidth allocation message is generated on the basis of the collected information and the time bandwidth size information. Accordingly, a cable modem termination system can effectively receive data transmitted from a cable modem.
Claims12
A method of allocating an upstream bandwidth to a modem of which channel combination is supported by a system, the method comprising:
- receiving a bandwidth request message that comprises bandwidth demand information and service identifier information corresponding to the modem;
- collecting channel identifier information and channel number information of a plurality of channels for the modem on the basis of the service identifier information, generating time bandwidth size information that represents the size of the time bandwidth to be allocated to each of the plurality of channels on the basis of the bandwidth demand information and the channel number information;
- and
- generating a bandwidth allocation message that allocates a part of the plurality of channels to the modem on the basis of the channel identifier information and the time bandwidth size information.
A method of allocating an upstream bandwidth to a modem of which channel combination is supported by a system, the method comprising:
- investigating a bandwidth allocation time point of each of a plurality of upstream channels allocated to the modem;
- arranging the plurality of upstream channels in an order of bandwidth allocation time points of the plurality of upstream channels;
- calculating a time difference between bandwidth allocation time points of first and second upstream channels of the plurality of upstream channels arranged in the order of the bandwidth allocation time points of the plurality of upstream channels;
- and
- allocating upstream channels except for the second upstream channel among the plurality of upstream channels to the modem if the time difference is larger than a threshold value.
Dependencies are inferred from the claim text.