Abstract:
A device for coordinating frequency division multiplexing transmissions over a shared transmission medium may include a processor circuit configured to receive bandwidth requests from devices for transmissions over the shared transmission medium during a time period. A first bandwidth request may correspond to a point-to-multipoint transmission over the shared transmission medium. The processor circuit may be further configured to schedule bandwidth allocations on the shared transmission medium for the time period based at least in part on the bandwidth requests, where a first bandwidth allocation that corresponds to the first point-to-multipoint transmission is scheduled during the time period prior to other bandwidth allocations. The processor circuit may be further configured to transmit, over the shared transmission medium, an indication of the bandwidth allocations.
Abstract:
The present disclosure is directed to a system and method for detecting burst noise. The system and method are described in the exemplary context of a cable modem system and can be used in such a system to specifically detect upstream burst noise. Once detected, the system and method can adjust the upstream receiver that receives data corrupted by the upstream burst noise to reduce the potentially deleterious effects that the burst noise can have on, for example, the packet error rate and/or data rate of the upstream receiver.
Abstract:
A network device includes one or more memories and one or more processor circuits coupled to the one or more memories. The one or more processor circuits are configured to cause providing for transmission a request directed to a network controller to change a power state of the network device, receiving a grant from the network controller in response to the request, and changing the power state of the network device in response to receiving the grant. The power state of the network device includes a running power state and a standby power state, where the standby power state includes an active mode and an idle mode. A network controller for granting a request from the network device to change a power state of the network device is also disclosed.
Abstract:
Systems and methods for push button configuration of devices are provided. One system comprises one or more circuits configured to determine that a configuration button on the second device has been activated and determine whether a configuration button has been activated on a first device or a third device within a time interval from a time at which the button on the second device is activated. The circuits are configured to, in response to determining that the configuration button has been activated on either the first device or the third device within the time interval, allow the second device to be authenticated. The circuits are configured to, in response to determining that the configuration button has not been activated on either the first device or the third device within the time interval, prevent admission of the second device. The network may be a wired network, such as a MoCA network.
Abstract:
An example of a method of policing a flow in a home network such as a MoCA network may include calculating a policing period, calculating a first credit parameter, initializing a first usage variable at a beginning of the policing period, receiving a packet at an ingress node, calculating the first usage variable based on a first formula, determining whether the first usage variable is less than or equal to the first credit parameter, and making a reservation request when the first usage variable is less than or equal to the first credit parameter. The reservation request is different from an opportunistic reservation request. Examples of a system and a computer program product having instructions stored in a tangible computer-readable storage medium are also provided.
Abstract:
A device for power efficient networking may include a processor circuit configured to identify a time to enter a low power state. The processor circuit may be further configured to transmit, prior to the identified time, transmission parameters to a network coordinator device for a network of devices, the transmission parameters being associated with a transmission from at least one of the devices to the device. The processor circuit may be further configured to enter the low power state at the identified time. The processor circuit may be further configured to, upon exiting the low power state, receive the transmission from at least one of the devices based at least in part on the transmission parameters. The processor circuit may be further configured to receive the transmission without participating in a node admission process after exiting the low power state.
Abstract:
A method and system for generating upstream frames in an Ethernet Passive Optical Network protocol over Coax (EPoC) network is provided. Upstream frame configuration parameters are received by a CNU from a CLT in a link info broadcast a message. The CNU can recover the upstream frame configuration parameters from the link info broadcast message and generate at least in part upstream frame.
Abstract:
A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.
Abstract:
A method for assessing channel performance in a network is provided. The network includes a network controller and nodes. The method preferably includes selecting a channel for assessment and allocating a first probe operation for use with the nodes. The method may also include, in response to the allocating, sending a first probe operation report message from each of the nodes to the network controller. The method may further include using the network controller to select a node to be a channel assessment operation node. In addition, the method may include selecting at least a portion of the nodes to participate in a channel assessment operation signal exchange. The method may also include moving the selected nodes to a different channel to perform a channel assessment operation on the different channel and using the channel assessment operation node to allocate a second probe operation on each of the selected nodes.
Abstract:
Systems and methods for transmitting packets over a network of communication channels are provide. A system according to the invention may include first and second nodes in communication with a coax backbone. The first node may further include a retransmission buffer. The system may also include a network access coordinator operative to coordinate access of the nodes to the coax backbone. In a time period at least one first packet is transmitted by the first node to the second node. The first packet may include an indication that retransmission service is applied. The first packet may also include a indication of the length corresponding to the packet. If, during the first time period the packet is not received by the second node, the second node is operative to send a retransmission request to the network access coordinator.