The invention relates in particular to a method executed by a control device, for a mesh communication network, allowing selection of an optimum frequency band, the method comprising the steps of determining network quality information, if the quality information is below a first threshold, then: sending, to each device in the network, a message comprising an instruction to perform a frequency band quality test, collecting, at the end of the quality test, for each device, quality data for each frequency band, determining, for each frequency band, a quality indicator, and selecting a so-called optimum frequency band as being the frequency band associated with the best indicator, when the so-called optimum frequency band is different from the frequency band used, then sending, to each device, an instruction to use the so-called optimum frequency band.

Disclosed are a method and apparatus for implementing security of broadband bus architecture in industrial internet field. The security of the access process can be guaranteed by encrypting data transmitted between the bus terminal and the bus controller; the operation of the entire system can be prevented from threat of abnormal data by performing security detection on the acquired data; it can be easy to treat abnormal conditions of the transport rule by the bus controller by monitoring and reporting the transport rule of the data flow over the bus by a bus terminal; and the reliability of the transmission process may be improved by interleaving the to-be-sent data at the bus controller and the bus terminal; the time delay of the data transmission resulting from the addition of the interleaving processes can also be reduced to have high transmission rate.

The vehicle condition monitoring and diagnosis method includes the steps of preparing a wired communication path between a gateway and the charger of a vehicle, initiating first communication to charge a battery supplying power to a driving motor between the gateway and the charger through the wired communication path, initiating charging according to a result of the first communication, receiving, by the gateway, a vehicle condition monitoring and diagnosis request from the charger through the first communication, and connecting the gateway to the charger through second communication to transmit vehicle condition monitoring and diagnostic information separately from the charging through the wired communication path, if the gateway is capable of performing vehicle condition monitoring and diagnosis according to the vehicle condition monitoring and diagnosis request.

An algorithm for the promotion of terminal nodes to switch nodes in a PLC network reduces overall network overhead and collisions, while ensuring the appropriate selection of a switch node and minimizing the number of levels in a PLC network. It also ensures that the terminal nodes with appropriate signal-to-noise ratios (SNRs) are promoted. It is desirable to have a network with fewer levels. The disclosed approach favors the nodes that are closer to the DC to promote them as switch nodes. This is achieved by waiting for a smaller number of PNPDUs for a node that is closer to the DC in comparison to a node that is farther away from the DC.

In accordance with one or more embodiments, an access point includes a first communication interface having: a first coupler configured to receive, via a first transmission medium, first guided electromagnetic waves from a first waveguide system of a distributed antenna system, wherein the first guided electromagnetic waves propagate along the first transmission medium without requiring an electrical return path; and also a first receiver configured to receive first data from the first guided electromagnetic waves. A data switch is configured to select first selected portions of the first data for transmission to at least one communication device in proximity to the access point.

The present application provides a Bluetooth receiving apparatus, a Bluetooth positioning system and a Bluetooth positioning method. The Bluetooth receiving apparatus includes: a Bluetooth receiver configured to receive a positioning signal from a Bluetooth terminal and determine a signal strength value of the received positioning signal; and a power carrier modulator configured to modulate the received signal strength value onto a power carrier signal to transmit the modulated power carrier signal through a power line.

A coexistence communication method for broadband power line communication that allocates a resource of another heterogeneous system to a blank resource in data where a plurality of heterogeneous systems are allocated to time division multiplex units (TDMUs) in a distribution scheme and a system therefor are provided. The method includes detecting a blank resource according to a heterogeneous system which does not share a power line among a plurality of heterogeneous systems, from data in which the plurality of heterogeneous systems which share the power line to perform power line communication are allocated to a plurality of TDMUs and in which each TDMU is allocated to a plurality of time division multiplex slots (TDMSs) sorted over time in a distribution scheme and allocating added another heterogeneous system to the blank resource.

Aspects of the subject disclosure may include, for example, a device that facilitates transmitting electromagnetic waves along a surface of a physical transmission medium without requiring an electrical return path that facilitates delivery of electric energy to devices, and sensing a condition that is adverse to the electromagnetic waves propagating along the surface of the physical transmission medium. Other embodiments are disclosed.

A microelectronic assembly may include a first microelectronic device, a second microelectronic device, a first signal link, a second signal link, and a first power connection. The first microelectronic device may include a first interface powered at a first voltage. The second microelectronic device may include a second interface powered at a second voltage. The first signal link may supply a first signal at the first voltage from the first interface to the second interface. The second signal link may supply a second signal at the second voltage from the second interface to the first interface. The first power connection may supply a first reference signal at the first voltage from the first interface to the second interface.

This application relates generally to the field of network communications and, more particularly, to transmitting data over power lines.