A gateway device is disclosed for use in an internet-of-things environment. The gateway device comprises a sensor interface for interfacing with a plurality of sensors. A first memory unit is provided for storing sensed data received from the sensors. A second memory unit is provided for storing template data associated with the sensors which is generated by the sensor interface. A processing module is configured for generating encoded messages associated with the respective sensors containing the sensed data and the template data. A communication module is operable for communicating the encoded messages to a central server for decoding.

Gateway device and a gateway system for an internet-of-things environment

Embodiments of methods, apparatuses, and systems for preprocessing a transmit signal of a transceiver are disclosed. One method includes estimating parameters of a communication link between the transceiver and a link partner transceiver, estimating cross-talk coupling of the transceiver to at least one other transceiver, and adjusting at least one of a transmit power or a transmit signal waveform based on the estimated parameters and estimated cross-talk. One apparatus includes a transceiver that is operative to obtain parameters of a communication link between the transceiver and a link partner transceiver, and to obtain a representation of cross-talk coupling of the transceiver to at least one other transceiver. Further, a controller of the transceiver is operative to adjust at least one of a transmit power level or a transmit signal waveform based on the estimated parameters and estimated cross-talk.

Transceiver Spectrum Control for Cross-Talk Mitigation

Aspects of a method and system for implementing energy efficient Ethernet techniques in a MACSec enabled PHY are provided. In this regard, an Ethernet PHY comprising memory may be operable to perform packet processing functions comprising MACSec protocol processing and energy efficient Ethernet (EEE) processing. In this regard, the memory may be utilized for implementing the MACSec protocol processing and energy efficient Ethernet (EEE) processing. The Ethernet packet processing functions may comprise packet inspection, packet generation, and packet modification. The energy efficient Ethernet (EEE) processing may comprise generating and/or inspecting messages for controlling when to transition into and out-of an energy-saving mode. The Ethernet PHY may be operable to monitor signals and/or conditions within the Ethernet PHY and control transitions into and out-of an energy-saving mode based on the monitored signals and/or conditions. The energy saving mode may comprise a low power idle mode and/or a subset PHY mode.

Method and system for implementing energy efficient ethernet techniques in a MACSec enabled PHY

An ethernet transceiver integrated circuit chip is disclosed including a plurality of transceivers for coupling to a corresponding plurality of physical channels. A channel switcher is coupled to the plurality of transceivers. During a first mode of operation, the channel switcher activates all of the plurality of transceivers to transceive data in accordance with a first aggregate data transfer rate. During a second mode of operation, the channel switcher activates less than all of the plurality of transceivers to transceive data in accordance with a second aggregate data rate that is less than the first aggregate data transfer rate.

Energy efficient ethernet (EEE) with 10GBASE-T structures

Methods and apparatus for transmitting Ethernet data along an Ethernet link with a BASE-T transceiver are disclosed. One exemplary BASE-T Ethernet transceiver includes an Ethernet data framing module having an input interface to receive Ethernet block data bits at a first data rate. Logic associates the Ethernet block data bits with an auxiliary bit and a number of zero bits. An error encoder is coupled to the logic to encode all of the data bits, auxiliary bit and zero bits into an error encoded transport frame having plural error check bits. A symbol mapper receives the error encoded transport frame and transforms the error encoded transport frame into multiple symbols. A transmitter coupled to the symbol mapper transmits the multiple symbols over an Ethernet link at one of a selection of symbol rates. The data rate of data transmitted over the Ethernet link is based on the number of zero bits.

Flexible data transmission scheme adaptive to communication channel quality

A physical-layer device (PHY) having corresponding methods comprises: a data rate module to select a data rate divisor N, where N is at least one of a positive integer, or a real number greater than, or equal to, 1; and a PHY core comprising a PHY transmit module to transmit first signals a data rate of M/N Gbps, and a PHY receive module to receive second signals at the data rate of M/N Gbps; wherein the first and second signals conform to at least one of 1000BASE-T, wherein M = 1, and 10GBASE-T, wherein M = 10.

Long-reach ethernet for 1000base-t and 10gbase-t

A network interface module includes a physical layer module and a data rate module The physical layer module is configured to transmit first signals to a network device via a cable at a first data rate while conforming to Ethernet baseband characteristics for the first data rate, and at least one of determine a characteristic of the cable, or perform an autonegotiation process with the network device The data rate module is configured to select a second data rate based on at least one of the characteristic of the cable, or results of the autonegotiation process The second data rate is slower than the first data rate The physical layer module is configured to transmit second signals to the network device at the second data rate while conforming to the Ethernet baseband characteristics for the first data rate

Bishara Nafea

Papers

Long-reach ethernet for 1000base-t and 10gbase-t

Physical layer device and method for data communication