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US 8,045,578 B2Granted
Method for controlling event and reporting status of cable modem and apparatus thereof
AssigneeElectronics and Telecommunications Research Institute
InventorsHye-Ju Oh, O Hyung Kwon, Soo In Lee
Life of this patent
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Abstract
Provided is a method and apparatus for controlling an event of a cable modem and reporting a status of the cable modem, the method including: determining whether to periodically allocate a transmission bandwidth of a CM-STATUS message with respect to an event occurrence of the cable modem; setting an event control encoding that includes information regarding whether to periodically allocate the transmission bandwidth; and generating a MAC Domain Descriptor (MDD) message containing the event control encoding to transmit the generated MDD message.
Claims14
A method of controlling an event of a cable modem at a cable modem termination system (CMTS), the method comprising:
- determining whether to periodically allocate a transmission bandwidth of a CM-STATUS message with respect to an event occurrence of the cable modem;
- setting an event control encoding that includes information regarding whether to periodically allocate the transmission bandwidth,
- setting a bandwidth allocation bit to a first value that is a polling mode, when it is determined to periodically allocate the transmission bandwidth, wherein the bandwidth allocation bit indicates whether to periodically allocate the transmission bandwidth;
- and
- setting the bandwidth allocation bit to a second value that is a contention mode, when it is determined to not periodically allocate the transmission bandwidth, wherein the bandwidth allocation bit indicates whether to periodically allocate the transmission bandwidth;
- and
- generating a MAC Domain Descriptor (MDD) message containing the event control encoding to transmit the generated MDD message.
4 more elements
A method of controlling an event of a cable modem, the method comprising:
- receiving an MDD message from a CMTS;
- extracting an event control encoding of the cable modem from the MDD message;
- determining whether to periodically allocate a transmission bandwidth of a CM-STATUS message, based on the extracted event control encoding,
- determining a transmission bandwidth allocation mode as the polling mode to periodically allocate the transmission bandwidth, when a bandwidth allocation bit included in the event control encoding is set to a first value;
- and
- determining the transmission bandwidth allocation mode as the contention mode to not periodically allocate the transmission bandwidth, when the bandwidth allocation bit included in the event control encoding is set to a second value;
- and
- transmitting the CM-STATUS message to the CMTS via the transmission bandwidth that is allocated using a polling mode or a contention mode depending on a decision result, when the event of the cable modem occurs.
5 more elements
A CMTS comprising:
- a transmission bandwidth allocation mode decision unit to determine whether to periodically allocate a transmission bandwidth of a CM-STATUS message with respect to an event occurrence of a cable modem;
- a message generation unit to set an event control encoding that includes information regarding whether to periodically allocate the transmission bandwidth, and to generate an MDD message containing the event control encoding, and
- when it is determined to periodically allocate the transmission bandwidth, the message generation unit sets a bandwidth allocation bit to a first value that is a polling mode, and the bandwidth allocation bit indicates whether to periodically allocate the transmission bandwidth, and
- when it is determined to not periodically allocate the transmission bandwidth, the message generation unit sets the bandwidth allocation bit to a second value that is a contention mode, and the bandwidth allocation bit indicates whether to periodically allocate the transmission bandwidth.
1 more element
A cable modem comprising:
- an event control encoding extraction unit to receive an MDD message from a CMTS, and to extract an event control encoding of the cable modem from the MDD message;
- a transmission bandwidth mode decision unit to determine whether to periodically allocate a transmission bandwidth of a CM-STATUS message, based on the extracted event control encoding;
- and
- an event transmitter to transmit the CM-STATUS message to the CMTS via the transmission bandwidth that is allocated using a polling mode or a contention mode depending on a decision result, when the event of the cable modem occurs, and
- when a bandwidth allocation bit included in the event control encoding is set to a first value, the transmission bandwidth mode decision unit determines a transmission bandwidth allocation mode as the polling mode to periodically allocate the transmission bandwidth, and
- when the bandwidth allocation bit included in the event control encoding is set to a second value, the transmission bandwidth mode decision unit determines the transmission bandwidth allocation mode as the contention mode to not periodically allocate the transmission bandwidth.
3 more elements
Dependencies are inferred from the claim text.