Patent application number | Description | Published |
20080259957 | MAC TO PHY INTERFACE APPARATUS AND METHODS FOR TRANSMISSION OF PACKETS THROUGH A COMMUNICATIONS NETWORK - A system for serving an individual node in a shared communication network having a MAC layer and a PHY layer, the system being operative to interface between the MAC layer and the PHY layer. The system may include a first physical channel transferring at least one packet between the layers, a second physical channel transferring at least one burst parameter between the layers, and a third physical channel transferring at least one timing signal, for a burst characterized by the at least one burst parameter and comprising the at least one packet, between the layers. | 10-23-2008 |
20100031297 | SYSTEMS AND METHODS FOR PROVIDING A MoCA POWER MANAGEMENT STRATEGY - Systems and methods for performing a method for reducing power consumption in MoCA devices that are connected via a coax network are provided. One method according to the invention includes, in a home network having a plurality of network modules, one of said plurality of network modules being a network controller, each of said plurality of network modules being connected to a coax backbone, communicating over the coax backbone between the plurality of network modules. The method further includes using the master module to receive requests sent over the coax backbone from the plurality of network modules for bandwidth to transmit bursts. The master module may establish an order of transmission opportunities for the plurality of network modules to follow when transmitting bursts directly to other network modules via the coax backbone. The method may also include using the master module to toggle each of the networked modules between a running power state and a standby power state. The standby power state may include an active mode and an idle mode. In the active mode, a networked node is configured to transmit and/or receive packets of information. In the idle mode, the networked node is configured to maintain a link to the network while powering down a portion of the circuit blocks, thereby reducing power consumption of the networked node. | 02-04-2010 |
20100158013 | SYSTEMS AND METHODS FOR REDUCING LATENCY AND RESERVATION REQUEST OVERHEAD IN A COMMUNICATIONS NETWORK - Systems and methods for reducing reservation request overhead in a communications network in which devices are connected via a coax network are provided. A method for managing transmission of data over a MoCA network according to the invention may include monitoring data transmission requirements at a node on the network; generating statistics of the data transmission requirements; predicting transmission requirements from the statistics; and reserving future transmission opportunities in view of the predicted transmission requirements. | 06-24-2010 |
20100158021 | SYSTEMS AND METHODS FOR PHYSICAL LAYER ("PHY") CONCATENATION IN A MOCA NETWORK - Systems and methods for concatenating messages in MoCA devices that are connected via a coax network are provided. One embodiment of a system according to the invention includes a home network having a plurality of nodes. The network is implemented over coaxial cable. The network includes a plurality of networked nodes. A transmitter of at least one of the networked nodes is configurable to transmit a concatenated burst. The concatenated burst includes a preamble, a first payload frame and a second payload frame. The first payload frame and the second payload frame are separated by a cyclic prefix of a first symbol of the second payload frame. | 06-24-2010 |
20100158022 | SYSTEMS AND METHODS FOR PROVIDING A MoCA IMPROVED PERFORMANCE FOR SHORT BURST PACKETS - Systems and methods for reducing the latency and for increasing throughput for MoCA devices that are connected via a coax network are provided. One method according to the invention includes, in a network having a plurality of network modules, each of the plurality of network modules being connected to a coax backbone, communicating over the coax backbone between the plurality of network modules. The method further includes a requesting the use of short burst messages. The method further includes responding to the requesting by constructing a short burst message with a single channel equalization section and reducing the number of bits per hertz in the transmission constellation. The resulting messages can be received with an acceptable error rate while making more efficient use of the MoCA network. | 06-24-2010 |
20100238932 | METHOD AND APPARATUS FOR ENHANCED PACKET AGGREGATION - Systems and methods for reducing the latency and for increasing throughput for MoCA devices that are connected via a coax network are provided. One method according to the invention includes, in a network having a plurality of network modules, each of the plurality of network modules being connected to a coax backbone, communicating over the coax backbone between the plurality of network modules. The method further includes a requesting the use of aggregated messages. The method further includes aggregations of messages at the Ethernet packet layer and/or at the MAC layer. The resulting messages can be received while making more efficient use of the MoCA network. | 09-23-2010 |
20100246586 | SYSTEMS AND METHODS FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS - 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. | 09-30-2010 |
20100254278 | ASSESSMENT IN AN INFORMATION NETWORK - A method for assessing channel performance in a home communication network is provided. The home communication network is operable over a plurality of channels. The home communication network includes a network controller and a plurality of nodes. Each of the network controller and the plurality of nodes is in communication over a coax backbone. The method preferably includes selecting a channel for assessment and allocating a first probe operation for use with the plurality of nodes. The method may also include, in response to the allocating, sending a first probe operation report message from each of the plurality of nodes to the network controller. In response to receiving the first probe operation report messages, 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 plurality of 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. | 10-07-2010 |
20100254402 | SYSTEM AND METHOD FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS - A system for transmitting packets over a network of communication channels, the system comprising a set of nodes comprising at least first and second nodes and a network access coordinator operative to coordinate the access of the set of nodes to a synchronous network of channels, wherein, if at least one individual packet has been transmitted from the first node to the second node which did not receive at least one packet, the second node is operative to send a retransmission request to the network access coordinator requesting retransmission of at least one individual packet. | 10-07-2010 |
20100284474 | TRANSMITTER CHANNEL THROUGHPUT IN AN INFORMATION NETWORK - Apparatus and methods for transmitting information over a home coax network. The apparatus and methods may involve a physical layer frequency domain signal preprocessor and a physical layer time domain signal transmitter. The transmitter may be configured to receive the signal from the preprocessor and transmit the signal over coax that is in radiofrequency communication with a plurality of network nodes, the transmitter having a first transmission channel and a second transmission channel. The signal may be received by a receiver on the network. The receiver may have a MAC-to-PHY interface that is configured to receive signals from single-transmission-channel transmitters. | 11-11-2010 |
20100290461 | MAC TO PHY INTERFACE APPARATUS AND METHODS FOR TRANSMISSION OF PACKETS THROUGH A COMMUNICATIONS NETWORK - A system for serving an individual node in a shared communication network having a MAC layer and a PHY layer, the system being operative to interface between the MAC layer and the PHY layer. The system may include a first physical channel transferring at least one packet between the layers, a second physical channel transferring at least one burst parameter between the layers, and a third physical channel transferring at least one timing signal, for a burst characterized by the at least one burst parameter and comprising the at least one packet, between the layers. | 11-18-2010 |
20110013633 | MoCA MULTICAST HANDLING - An apparatus and methods for transmitting information over a home coax network are provided. A method according to the invention for transmitting information over a home coax network preferably includes adding a multicast transmission mode to a system that previously only had unicast transmission mode and broadcast mode. The method preferably includes broadcasting multicast (“MC”) traffic. The MC traffic may be directed to a predetermined MC group. The MC traffic may be transmitted from an ingress node to a plurality of egress nodes. A portion of the plurality of egress nodes may belong to the MC group. Upon receipt by at least one of the egress nodes of the MC traffic, the method may further include using the at least one egress node to filter the received MC traffic to determine whether the MC traffic is directed to a group for which the egress node is a member. | 01-20-2011 |
20110080850 | SYSTEMS AND METHODS FOR PROVIDING SERVICE ("SRV") NODE SELECTION - Systems and methods for providing SRV node selection are provided. The method may include using a node in a home communications network. The communications network may include a plurality of nodes and a coaxial cable. The method may include using an entry node to submit a query message in selected fields of a Device Attribute Information Element in L2ME protocol. The entry node may require an advanced service. The entry node may not be aware which node of the plurality of nodes is the node selected for supporting the advanced service on the network. The selected fields may include vendor specific fields. The method may further include distributing the query message to the plurality of nodes. In response to the query message, the method may further include determining which of the plurality of nodes can be selected for supporting the advanced service on the network. The method may also include disseminating the information regarding which of the plurality of nodes can be selected for supporting the advanced service on the network to each of the plurality of nodes which can be selected for supporting the advanced service on the network. The method may further include determining whether there is a one the plurality of nodes which has been selected for supporting the advanced service on the network. | 04-07-2011 |
20110205891 | METHOD AND APPARATUS FOR POLICING A QoS FLOW IN A MoCA 2.0 NETWORK - Systems and methods for policing a Quality of Service (QoS) flow in a MoCA network are provided. The network may include a sending node, a receiving node and a network controller. The network controller may allocate a QoS flow between the sending node and the receiving node. The sending node may request bandwidth for the QoS flow from the network controller. QoS requests have a higher priority than some other requests and may swamp the network. The sending node therefore polices its use of the network. First, the sending node computes a policing time period Tpp. Next the sending node computes a packet and bit allocation for the use of the network during a Tpp. Last the sending node sends reservation requests to the network controller when the allocation of packet or bits has not been exceeded. If any allocation has been exceeded the sending node reserves bandwidth via opportunistic reservation requests which have a lower priority than some other requests. | 08-25-2011 |
20110206042 | SYSTEMS AND METHODS FOR IMPLEMENTING A HIGH THROUGHPUT MODE FOR A MOCA DEVICE - Systems and methods for providing a high throughput mode for a MoCA device are provided. An electronic device configured for use as a node in a home network is provided. The electronic device may include a preamble generator block. The preamble generator block may include a time domain preamble generator. The time domain preamble generator may be configured to generate a periodic preamble for a MoCA signal. The preamble generator block may also include a doubling circuit configured to double the periodic preamble. Such doubling may preferably obtain an increased maximum periodic preamble. | 08-25-2011 |
20110310907 | SYSTEMS AND METHODS FOR IMPLEMENTING A CONTROL PLANE IN A DISTRIBUTED NETWORK - Systems and methods for emulating the bridging of control packets of a first network through a second network. Control packets may be Ethernet control packets instantiating a stream through the emulated bridge. One such protocol is the Institute for Electrical and Electronics Engineers (IEEE) 802.1Q protocol. One second network may be a MoCA 2.0 network or a Power Line Communication (PLC) network or any other suitable network. Control packets may be encapsulated as unicast packets according the second network and sent to a control plane node. The encapsulated unicast packets may be indentified and decapsulated by the control plane node. The control plane node may verify access to resources required by the control packet of the emulated bridge. The control plane may send encapsulated packets to the egress nodes of the second network that have sufficient resources to satisfy the control packet requirements. Each egress nodes receiving the encapsulated packets may decapsulate the control packet and sent it to a first network device. | 12-22-2011 |
20120174197 | PUSH BUTTON CONFIGURATION OF MULTIMEDIA OVER COAX ALLIANCE (MOCA) DEVICES - A first device coupled to a multimedia over coax alliance (MoCA) network may receive, from a second device, an indication that a configuration button on the second device has been pushed. The first device may receive, from a third device, an indication that a configuration button on the third device has been pushed. The first device may allow the second device to be authenticated on the MoCA network if the configuration buttons of the second and third devices were both pushed within a determined amount of time. The first device may prevent the second device from being authenticated on the MoCA network if the configuration button of the second device and the configuration button of the third device were not pushed within a determined amount of time. The indication from the third device may comprise a layer 2 management entity (L2ME) message or a Protocol Information element. | 07-05-2012 |
20120269090 | SYSTEMS AND METHODS FOR REDUCING RESERVATION REQUEST OVERHEAD IN A COMMUNICATIONS NETWORK - Systems and methods for reducing reservation request overhead in a communications network in which devices are connected via a coax network are provided. A method for managing transmission of data over a MoCA network according to the invention may include monitoring data transmission requirements at a node on the network; generating statistics of the data transmission requirements; predicting transmission requirements from the statistics; and reserving future transmission opportunities in view of the predicted transmission requirements. | 10-25-2012 |
20120307831 | SYSTEMS AND METHODS FOR PROVIDING A MoCA IMPROVED PERFORMANCE FOR SHORT BURST PACKETS - Systems and methods for reducing the latency and for increasing throughput for MoCA devices that are connected via a coax network are provided. One method according to the invention includes, in a network having a plurality of network modules, each of the plurality of network modules being connected to a coax backbone, communicating over the coax backbone between the plurality of network modules. The method further includes a requesting the use of short burst messages. The method further includes responding to the requesting by constructing a short burst message with a single channel equalization section and reducing the number of bits per hertz in the transmission constellation. The resulting messages can be received with an acceptable error rate while making more efficient use of the MoCA network. | 12-06-2012 |
20120320922 | SYSTEMS AND METHODS FOR PHYSICAL LAYER ("PHY") CONCATENATION IN A MULTIMEDIA OVER COAX ALLIANCE NETWORK - Systems and methods for concatenating messages in MoCA devices that are connected via a coax network are provided. One embodiment of a system according to the invention includes a home network having a plurality of nodes. The network is implemented over coaxial cable. The network includes a plurality of networked nodes. A transmitter of at least one of the networked nodes is configurable to transmit a concatenated burst. The concatenated burst includes a preamble, a first payload frame and a second payload frame. The first payload frame and the second payload frame are separated by a cyclic prefix of a first symbol of the second payload frame. | 12-20-2012 |
20130039186 | APPARATUS AND METHODS FOR REDUCTION OF TRANSMISSION DELAY IN A COMMUNICATION NETWORK - Apparatus and methods for reducing latency in coordinated networks are provided. The apparatus and methods relate to a protocol that may be referred to as the Persistent Reservation Request (“p-RR”), which may be viewed as a type of RR (reservation request). p-RR's may reduce latency, on average, to one MAP cycle or less. A p-RR may be used to facilitate Ethernet audiovisual bridging. Apparatus and methods of the invention may be used in connection with coaxial cable based networks that serve as a backbone for a managed network, which may interface with a package switched network. | 02-14-2013 |
20130128898 | SYSTEM AND METHOD FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS - System and methods for transmitting packets over a network are provided. A system includes a network access coordinator (NAC) configured to communicate with first and second nodes via a network backbone. The NAC is configured to coordinate access of the first and second nodes to the network backbone. The NAC is configured to receive, from the first node in a first time period, a first reservation request to transmit a first packet to the second node. The NAC is configured to allocate, in response to the first reservation request, a first slot in a second time period for the first node to transmit the first packet to the second node. The NAC is configured to allocate a second slot for the second node to transmit, to the first node, a first reply that includes an indicator of whether the second node received the first packet. | 05-23-2013 |
20130287042 | Dual Channel Mode of Operation for Bonded Channels - A dual channel mode of operation (DCM) for a home entertainment network that can provide aggregate throughput associated with channel bonding without requiring that every device in the network be capable of channel bonding. | 10-31-2013 |
20130301655 | SYSTEMS AND METHODS FOR INCREASING PREAMBLES - Systems and methods for increasing preambles are provided. In some aspects, an electronic device configured for use as a node in a home network is provided. The electronic device includes a preamble generator configured to generate an outbound preamble for a data signal. The electronic device also includes a preamble increasing circuit configured to increase a size of the outbound preamble based on a switching signal. | 11-14-2013 |
20130347043 | SYSTEMS AND METHODS FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS - 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. | 12-26-2013 |
20140056138 | METHOD AND APPARATUS FOR POLICING A FLOW IN A NETWORK - 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. | 02-27-2014 |
20140079102 | Physical Layer (PHY) Link Signaling for Cable Networks - Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modem without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSiS and EPoC standards. | 03-20-2014 |
20140079399 | Time to Time-Frequency Mapping and Demapping for Ethernet Passive Optical Network over Coax (EPoC) - Embodiments include, but are not limited to, systems and methods for enabling Orthogonal Frequency Division Multiple Access (OFDMA) in the upstream in an Ethernet Passive Optical Network over Coax (EPoC) network. Embodiments include systems and methods for translating Ethernet Passive Optical Network (EPON) upstream time grants to OFDMA resources represented by individual subcarriers of an upstream OFDMA frame. In an embodiment, the translation of EPON upstream time grants to OFDMA resources ensures that Coaxial Network Units (CNUs) sharing an OFDMA frame do not use overlapping subcarriers within the frame. Embodiments further include systems and methods for timing upstream transmissions by the CNUs in order for the transmissions to be received within the same upstream OFDMA frame at a Fiber Coax Unit (FCU). Embodiments further include systems and methods for re-generating a data burst from OFDMA resources for transmission from the FCU to an Optical Line Terminal (OLT). | 03-20-2014 |
20140126345 | Simplified multi-modulation coding set (MCS) or multiple profile transmission (MPT) scheme for communications - A communication device includes a media access control (MAC) and a physical layer (PHY) processor and supports multi-profile communications with one or more other communication devices. The PHY processor selects a profile based on one or more characteristics of a communication pathway between the device and the one or more other communication devices. A profile may include operational parameters such as modulation coding set (MCS), forward error correction (FEC) and/or error correction code (ECC), a number of bits per symbol per sub-carrier and/or sub-carrier mapping (e.g., such as based on orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA)), cyclic prefix, channel(s) used in transmission, bit-filling and shortening, unicast and/or multicast transmission, and/or other operational parameters. The PHY processor also may be configured to operate within at least two different operational modes including a first mode of packet aggregation and a second mode of bit-filling and shortening. | 05-08-2014 |
20140146698 | CHANNEL ASSESSMENT IN AN INFORMATION NETWORK - 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. | 05-29-2014 |
20150033314 | PUSH BUTTON CONFIGURATION OF DEVICES - 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. | 01-29-2015 |
20150063484 | Frequency interleave within communication systems - A communication device includes a communication interface and a processor. In one example, the processor generates an orthogonal frequency division multiplexing (OFDM) symbol that includes information modulated within sub-carriers and then interleaves the sub-carriers of the OFDM symbol to generate an interleaved OFDM symbol. This interleaving of the sub-carriers operates to write the plurality of sub-carriers to rows of a two dimensional (2D) array and read the plurality of sub-carriers from columns of the 2D array. This interleaving also operates to read a column of the columns using a bit-reversed address of the column when the bit-reversed address is less than a number of the columns and using the address of the column when the bit-reversed address is greater than or equal to the number of the columns. The processor transmits, via the communication interface, the interleaved OFDM symbol to another communication device. | 03-05-2015 |