Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for scheduling a network device for communication in communication networks is disclosed. The method includes determining, based at least in part on a first schedule, a first collision interval indicating when the network device is available for communication over the communication networks that include a first communication network and a second communication network. The method includes determining communication behavior of the network device for communicating over the first communication network and the second communication network during the first collision interval.

Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for using a network device to communicate over multiple networks is disclosed. The method includes receiving a packet from a combined communication interface and determining that the packet is formatted according to a first communication protocol. In response to determining that the packet is formatted according to the first communication protocol, the method includes enabling a first component in a first digital signal processor (DSP) block of the network device to process the packet according to the first communication protocol, and disabling a second component of the first DSP block, wherein the second component is configured to process the packet according to a second communication protocol.

Abstract: Described herein is datagram segmentation and acknowledgment in a network. A communication node in the network may determine a length of a datagram is greater than a maximum protocol data unit (PDU) length of a protocol of the network and create a segmented message comprising the datagram and a payload length field indicating the length of the datagram. The node may then segment the segmented message into segments and create a PDU comprising one or more of the segments and a segment number least significant bits (LSB) field comprising least significant bits of a segment number associated with the one or more segments. The PDUs may be acknowledged using selective acknowledgment (SACK) messages. The SACK message may comprise a SACK type indicator, a segment number most significant bits (SN_MSB) indicator, and a payload comprising one or more least significant bits (LSBs) of a segment of the segmented message.

Abstract: A method for determining transmission properties of a multiple-input multiple-output (MIMO) channel. In one embodiment, a MIMO receiver receives a non-beamformed, spatial-multiplexed (SM) sounding signal over multiple signal paths of the MIMO channel. The receiver determines beamforming information including beamforming coefficients and beamforming Eigenvalues for the MIMO channel based, at least in part, on frequency responses of the signal paths. The receiver determines a first signal-to-noise ratio (SNR) estimate for one or more SM data streams of the SM sounding signal based, at least in part, on the determined beamforming information.

Abstract: Described herein is an apparatus for communicating information via a communication channel from a first device to a second device. An apparatus may comprise an I/O module, and a processor coupled to the I/O module. The processor is configured to: determine a weak carrier associated with the communication channel; determine a strong carrier for pooling with the weak carrier and associated with the communication channel; determine information being transmitted on the strong carrier; and transmit the information on the weak carrier.

Abstract: Described herein are apparatuses and methods for providing communication in multiple frequencies in a multiband Ethernet over Coax (EoC) system. An exemplary apparatus comprises a transceiver for transmitting or receiving a first data packet on a first channel associated with a first frequency, and a transmitter for transmitting a second data packet on at least one second channel associated with at least one second frequency.

Abstract: Described herein are apparatuses for receiving preamble information via a channel between a first device and a second device. An apparatus is configured to scan a band of multiple carriers associated with the channel, determine a first carrier associated with the channel from the band of multiple carriers, wherein a first channel quality metric associated with the first carrier is greater than a threshold channel quality metric, receive, on the first carrier, the preamble information from the first device, determine a second carrier associated with the channel from the band of multiple carriers, wherein a second channel quality metric associated with the second carrier is greater than the threshold channel quality metric, receive, on the second carrier, the preamble information from the first device, and determine, based on receipt of the preamble information from the first device, a start of a data packet transmission from the first device.

Abstract: Described herein are apparatuses, methods, and computer readable media for communicating an acknowledgment for a data payload on a network. An exemplary apparatus comprises an I/O module, and a processor coupled to the I/O module. The processor is configured to: determine a first channel for communicating the data payload, determine a second channel for communicating the acknowledgment, wherein the second channel is different from the first channel, communicate the data payload on the first channel, and communicate the acknowledgment on the second channel.

Abstract: A first powerline communication device, associated with a first powerline communication network, determines a plurality of time intervals in a beacon period of the first powerline communication network based, at least in part, on variations in levels of interference from a second powerline communication network which shares a powerline communication medium with the first powerline communication network. The first powerline communication device determines at least one channel adaptation parameter for each of the plurality of time intervals in the beacon period to compensate for effects of the variations in the levels of interference from the second powerline communication network. The first powerline communication device applies the at least one channel adaptation parameter corresponding to one or more of the plurality of time intervals in the beacon period when transmitting data via the powerline communication medium.

Abstract: Network devices can be configured to implement adaptive power control functionality in a communication network. A power control requestor of a local communication network can calculate a link margin between a neighbor network device of a neighbor communication network and a local network device associated with a least preferred performance measurement. The power control requestor can transmit a power control message including the link margin to request the neighbor network device to vary the transmit power of the neighbor network device. In response to receiving a power control message, a power control responder can use a link margin indicated in the power control message to evaluate the feasibility of reducing the transmit power of the power control responder. The power control responder can transmit a power control response indicating whether it will vary the transmit power.

Abstract: A first client may establish a power charging association with one of a plurality of service agents over a network. The first client transmits a first signal via a first attachment point of a powerline network, the first signal associated with requesting the power charging association. The first client broadcasts a sounding message via the first attachment point after transmitting the first signal, wherein the sounding message is receivable by one or more service agents including at least a first service agent of the powerline network. The first service agent received the sounding message with a lowest attenuation of the one or more service agents that received the sounding message. The power charging association is established between the first client and the first service agent.

Abstract: A Response Interframe Space (RIFS) time period may be adapted in a communication system. The RIFS time period may be based, at least in part, on channel conditions (e.g., data rate) between a first device and a second device. The RIFS may be optimized in consideration of channel conditions for a particular communications channel and/or characteristics of a particular physical layer transmission. In one embodiment, the RIFS may be dependent on characteristics of a final modulation symbol in a physical layer transmission. The final modulation symbol may include more than one PHY blocks (PBs) or portions of PBs. The RIFS may depend on a number of PBs that end in the final modulation symbol.

Abstract: A method includes determining that a first station has been allocated a first time period to transmit over a shared medium in a network. The method includes transmitting, from the first station to a second station over the shared medium during the first time period, wherein stations other than the first station and the second station refrain from transmitting over the shared medium during the first time period. The method includes receiving, from the second station, a request message to allow the second station to transmit during the first time period and a requested amount of time to transmit. The method includes, in response to allowing the second station to transmit during the first time period, determining an authorized amount of time for the second station to transmit during the first time period, and transmitting an authorization message for the second station to transmit and the authorized amount of time.

Abstract: A method includes determining, at a first transmitter, whether to permit reuse of a first transmit opportunity (TXOP) associated with a message. The method further includes sending a portion of the message from the first transmitter to a first receiver. The portion of the message indicates whether reuse, by a reuse transmitter, of the first TXOP is permitted. When reuse of the first TXOP is permitted, the reuse transmitter is permitted to send a second message while the first transmitter sends a second portion of the message to the first receiver during the first TXOP.

Abstract: Systems and methods for allocating network bandwidth between a plurality of networks. Requests for bandwidth allocation from other networks can be received. A coexistence frame requesting an allocation of bandwidth for a local network can be generated based upon the bandwidth allocation requests received from other networks. The coexistence frame can be transmitted, and utilization of the requested allocation can be delayed by a reservation period.

Abstract: A waveform communicated from a first station to a second station over a shared medium may include at least the first symbol comprising a first set of frequency components at predetermined carrier frequencies modulated with preamble information and a second set of frequency components at predetermined carrier frequencies modulated with frame control information. The first symbol may comprise a single symbol delimiter.

Abstract: A slotted message access protocol can be implemented for transmitting messages in a communication network. A beacon period may be divided into multiple communication slots. A master network device may register a first client network device and provide registration information to the first client network device. The registration information may include one or more encryption keys to allow the first client network device to securely transmit messages in the communication network. The client network device may use an encryption key associated with a second client network device to decrypt messages received from the second client network device. Furthermore, the first client network device may use a contention-based communication slot to request allocation of contention-free communication slots for subsequent transmissions. The master network device may temporarily allocate contention-free communication slots to the client network device for a specified duration.

Abstract: A slotted message access protocol can be implemented for transmitting messages in a communication network. A beacon period may be divided into multiple communication slots. A master device may register a client device and provide registration information to allow the client device to operate in the communication network. The registration information may be determined based, at least in part, on a location of the client device in the communication network. As part of the registration information, contention-free communication slots may be assigned for use by the client device. Contention-based communication slots may also be assigned to a group of client devices. Messages may also be segmented depending on whether the message is transmitted in a contention-free or a contention-based communication slot. Furthermore, a relay device may be designated to retransmit a message (received from an original transmitting device) during a communication slot assigned to the original transmitting device.

Abstract: Channel reuse permits more than one station to communicate concurrently via a communication medium. A first station may transmit a first transmission to a second station. A third station may detect the first transmission and determine a channel a channel reuse time period for a second transmission transmitted from the third station to a fourth station via the communication medium at least partially concurrently with the first transmission. The channel reuse time period may be based at least in part on estimated time to a next priority resolution slot (PRS) of the communication medium as determined from information in a start of frame (SOF) delimiter of the first transmission. The channel reuse time period may take into account a media access control (MAC) protocol data unit (MPDU) burst, and/or time periods associated with acknowledgement messages.

Abstract: A network device may be configured to adapt beamforming parameters for a communication region of a powerline cycle in response to variations in communication channel conditions. A first network device can estimate initial beamforming parameters for each communication region based on sounding messages received from a second network device. The first network device can determine coarse beamforming parameters for each communication region based on data packets received from the second network device using the initial beamforming parameters. The first network device can determine a difference parameter for the first communication region based, at least in part, on a first initial beamforming parameter associated with the first communication region and a first coarse beamforming parameter associated with the first communication region.