Aspects of the subject disclosure may include, a communication system that facilitates monitoring communications associated with a second particular device, where a group of devices operate in a premises, where a first subset of the group of devices communicate directly with a monitoring device located at the premises via a local area network of the premises, where a second subset of the group of devices do not communicate directly with the monitoring device, where the first subset of the group of devices includes the first particular device, and where the second subset of the group of devices includes the second particular device. The communications can be analyzed to detect an anomaly associated with the second particular device. A plurality of messages can be transmitted, via the local area network, to the monitoring device over a time period indicating the anomaly. Other embodiments are disclosed.

A power amplifier with supply switching is provided. The power amplifier detects a magnitude of an outgoing broadband communication signal and determines whether the magnitude exceeds a predetermined voltage threshold. The power amplifier applies a first gain to the outgoing broadband communication signal using a first voltage supply rail when it is determined that the magnitude exceeds the predetermined voltage threshold and a second gain using a second voltage supply rail that is smaller than the first voltage supply rail when it is determined that the magnitude does not exceed the predetermined voltage threshold. The power amplifier produces an output signal from the outgoing broadband communication signal with the applied first gain or the applied second gain, wherein a current of the outgoing broadband communication signal is switched between the first voltage supply rail and the second voltage supply rail in response to the magnitude being detected.

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.

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.

Systems and methods for setting a carrier-sensing mechanism in a PLC node are disclosed. In a PLC standard, coexistence is achieved by having the nodes detect a common preamble and backing off by a Coexistence InterFrame Space (cEIFS) time period to help the node to avoid interfering with the other technologies. In one embodiment, a PHY primitive is sent from the PHY to the MAC know that there has been a preamble detection. A two-level indication may be usedone indication after receiving the preamble and other indication after decoding the entire frame. The MAC sets the carrier-sensing mechanism based on the preamble detection.

Aspects of the subject disclosure may include, a system for initiating, at a first start time, transmissions of first electromagnetic waves, ceasing transmission of the first electromagnetic waves after a first duration period that is less than a one-way travel time for signals to propagate between the first waveguide system and a second waveguide system via a physical transmission medium, and initiating, after the ceasing, reception of second electromagnetic waves from the second waveguide system that are initiated at a second start time and transmitted for a second duration period that is less than the one-way travel time. Other embodiments are disclosed.

A vehicle and a method for controlling the same are disclosed. The vehicle may include a plurality of charging ports electrically coupled to a first connector and a second connector, each of the first and second connectors configured to receive power from at least one charger; and a controller configured to receive a charging start command and, upon receiving the charging start command, to control operation of the vehicle to be sequentially paired with the first connector and the second connector when the first connector and the second connector are electrically coupled to the plurality of charging ports.

In accordance with one or more embodiments, a directional coupler includes a first dielectric cable is configured to receive a first electromagnetic wave from the first port and to generate a second electromagnetic wave that propagates along a transmission medium in a first direction without requiring an electrical return path. A second dielectric cable is configured to couple a first portion of the second electromagnetic wave to a second port, wherein a second portion of the second electromagnetic wave continues to propagate in the first direction along the transmission medium. A third dielectric cable is configured to couple the second portion of the second electromagnetic wave to a third port and to isolate the third port from a third electromagnetic wave propagating along the transmission medium in a second direction that is opposite to the first direction.

In accordance with one or more embodiments, a splitter includes a first port, a second port and a third port. A first dielectric cable is configured to receive a first electromagnetic wave from the first port and to generate, in response to the first electromagnetic wave, a second electromagnetic wave that propagates in a first direction along a transmission medium without requiring an electrical return path, wherein the transmission medium is a bare or insulated wire. A second dielectric cable in proximity to a first side of the transmission medium is configured to couple a first portion of the second electromagnetic wave to the second port. A third dielectric cable in proximity to a second side of the transmission medium configured to couple a second portion of the second electromagnetic wave to the third port.

A communication apparatus is connected to another communication apparatus via a power source line, a signal line, and a shared line. The communication apparatus includes a detector and a communicator. The detector detects the phase of an alternating-current voltage applied between a first terminal for connecting to the power source line and a second terminal for connecting to the shared line. The communicator communicates with the other communication apparatus by executing at least one of transmission or reception of an electric current signal generated by opening and closing a circuit including the signal line and the shared line except when the phase detected by the detector is within a specific range. The specific range is defined as a range in which an induced electric current flowing through the signal line due to the alternating-current voltage is greater than a reference value.