Method and system for server-side handling of a low-power client in a wide area network
First Claim
1. A method comprising:
- in a cable modem termination system (CMTS) of a Data Over Cable Service Interface Specification (DOCSIS) network;
receiving a request that a network device be permitted to enter a power-saving mode of operation;
in response to said request, entering a power-saving mode of operation which comprises transmitting a message granting said network device permission to enter said power-saving mode of operation, wherein said message granting said network device permission to enter said power-saving mode of operation is a Moving Picture Experts Group (MPEG) transport stream packet having a first program identifier (PID) that;
is uniquely associated with messages that manage power consumption in the DOCSIS network; and
is different from a second PID used for MPEG transport stream packets that carry DOCSIS messages.
5 Assignments
0 Petitions
Accused Products
Abstract
A CMTS may receive a request that a network device be permitted to enter a power-saving mode of operation. In response, the CMTS may enter a power-saving mode of operation wherein MAC management messages, transmission opportunities for the sleeping network device, and/or contention periods on one or more channels occur at independently determinable intervals. The CMTS may then transmit a message granting the network device permission to enter the power-saving mode of operation. The CMTS may start a sleep timer upon transmitting the MAC management message and may deregister the network device if no communication is received from the network device prior to expiration of the sleep timer. The CMTs may buffer traffic destined for the network device in a buffer of the CMTS while the network device is in the power-saving mode of operation, and may wake the network device upon the amount of buffered traffic reaching a threshold.
24 Citations
18 Claims
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1. A method comprising:
in a cable modem termination system (CMTS) of a Data Over Cable Service Interface Specification (DOCSIS) network; receiving a request that a network device be permitted to enter a power-saving mode of operation; in response to said request, entering a power-saving mode of operation which comprises transmitting a message granting said network device permission to enter said power-saving mode of operation, wherein said message granting said network device permission to enter said power-saving mode of operation is a Moving Picture Experts Group (MPEG) transport stream packet having a first program identifier (PID) that; is uniquely associated with messages that manage power consumption in the DOCSIS network; and is different from a second PID used for MPEG transport stream packets that carry DOCSIS messages. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
in a host device that centrally manages access of a plurality of Data Over Cable Service Interface Specification (DOCSIS) client devices to a shared medium comprising one or more coaxial cables and/or fiber optic cables; receiving, from one of said client devices via said one or more coaxial cables and/or fiber optic cables, a request that said one of said client devices be permitted to enter a power-saving mode of operation; in response to said request, entering a power-saving mode of operation which comprises transmitting a message granting said one of said client devices permission to enter said power-saving mode of operation, wherein said message granting said one of said client devices permission to enter said power-saving mode of operation is a Moving Picture Experts Group (MPEG) transport stream packet having a first program identifier (PID) that; is uniquely associated with messages that manage power consumption in the DOCSIS network; and is different from a second PID used for MPEG transport stream packets that carry DOCSIS message. - View Dependent Claims (9)
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10. A system comprising:
circuitry for use in a cable modem termination system (CMTS) of a Data Over Cable Service Interface Specification (DOCSIS) network, wherein said circuitry comprises at least one networking circuit for use in transmitting and/or receiving of signals and at least one control circuit for performing control operations based on transmitted and/or received signals, said circuitry being operable to; receive, via said at least one networking circuit, a request that a network device be permitted to enter a power-saving mode of operation; in response to said at least one control circuit processing said request, enter a power-saving mode of operation in which a message granting said network device permission to enter said power-saving mode of operation is transmitted, wherein said message granting said network device permission to enter said power-saving mode is a Moving Picture Experts Group (MPEG) transport stream packet having a first program identifier (PID) that; is uniquely associated with messages that manage power consumption in the DOCSIS network; and is different from a second PID used for MPEG transport stream packets that carry DOCSIS messages. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification