A method for a system includes broadcasting with a first transceiver of a transit terminal to a smart device, a first identifier, receiving with the first transceiver from the smart device, an ephemeral ID not permanently associated with a user of the smart device, providing with the first transceiver to the smart device, a second identifier and a unique data packet, receiving with the first transceiver from the smart device a token determined by an authentication server in response to the second identifier and the unique data packet and wherein the token comprises a payload portion, determining with a processor of the transit terminal whether the token is valid, and directing with the processor a peripheral device to perform a user-perceptible action for the user, authorizing the user to enter or exit a transit system associated with the transit terminal in response to determining the token to be valid.

A system to communicate via modulated optical signals of the Li-Fi signal type to transmit data to and from a plurality of defined privileged spaces. The communicating system includes a plurality of first light sources, each first light source emitting, in the infrared, a first modulated optical signal. A plurality of optical fibers, each optical fiber guiding the first modulated optical signal from a single first light source in the direction of an optical interface. The optical interface transmitting the first modulated optical signal into a defined privileged space. Each optical fiber also transporting a second modulated optical signal from the associated defined privileged space in the direction of a device configured to acquire the second modulated optical signal.

In optical wireless communication networks (e.g. LiFi networks), comprised of multiple access points (201, 202), APs, a mechanism is provided for seamless handover between two overlapped neighboring APs, wherein a sectorized endpoint (209) is configured to exploit knowledge of channel turnaround to detect the presence of neighboring AP(s) in an efficient manner and select a relevant segment (PD1, PD2, PD3, PD4) for handover.

Systems and methods for a portable electronic device to provide healthcare to a subject at a remote location. In embodiments, the portable electronic device may include: a housing operable to encase one or more components of the portable electronic device, a power source, a plurality of light emitting diodes, a communication portal electrically coupled to the power source, a distribution module electrically coupled to the power source and operatively connected to the plurality of light emitting diodes and the communication portal, and an input device.

A method by a WiFi AP for setting-up a WiFi connection with a wireless device, includes sending WiFi service credentials to a Light Fidelity (Li-Fi) AP for transmission through Li-Fi signaling that is broadcast for reception by wireless devices. The method receives and authenticates an authentication request that is received via a RF transceiver of the WiFi AP from the wireless device, which is responding to the WiFi service credentials that were broadcast through the Li-Fi signaling. The method then establishes a WiFi RF connection with the wireless device responsive to the authentication.

An optical wireless communication (OWC) unit for transmitting and/or receiving data installable in a further device comprises at least one transmitter device for transmitting modulated light comprising an OWC signal of said data and/or at least one receiver device for receiving modulated light comprising an OWC signal representative of said data, wherein the at least one receiver device comprises at least one detector. The OWC unit further comprises analogue electronic circuitry for processing electronic signals and at least one power connection and/or at least one data connection for connection to a power source and/or processing resource of the further device. The OWC unit is operable to provide OWC communication under control of said further device and/or so as to transmit data from/provide data to said further device. The OWC unit is for use in an OWC system having an analogue bandwidth greater than or equal to 80 MHz.

A wireless communication system comprises a base station and one or more relay docks and transmits directional wave signals between components using high frequency waves, such as millimeter waves. A beam forming decision engine utilizes position information collected from one or more position or motion sensors of a user device to determine a direction in which to form a directional wave signal being transmitted between components of the wireless communication system.

In a wireless optical network with multiple coordinators or other access points, the coverage area of coordinators may overlap. Interference in the communication between coordinators and devices may occur in these overlapping coverage areas. Various embodiments propose an automatic allocation of reserved time slots to coordinators. These time slots support the coordinators to advertise their presence without interference and enable device to detect the presence of a neighbour coordinator in a single MAC cycle. Fast detection allows fast re-scheduling of time slots in the wireless optical network in order to prevent interference when a device that enters the overlapping coverage area of two coordinators.

An optical wireless communication (OWC) transceiver apparatus comprises: at least one light transmitter configured to transmit light of a first wavelength or first range of wavelengths; driver circuitry configured to receive a data signal and to process the data signal to produce a driving signal to drive the at least one light transmitter such that the at least one light transmitter produces a modulated optical signal representative of said data signal; at least one photodetector configured to receive light of a second wavelength or second range of wavelengths and to produce a detection signal in response to the received light; receiver circuitry configured to receive and process the detection signal to produce a receiver signal; demodulation circuitry configured to perform a decoding and/or demodulation process in accordance with an OWC protocol thereby to extract data from the receiver signal; wherein the transceiver apparatus further comprises: a motion sensor configured to sense motion of at least one object in a region about the transceiver apparatus and to produce motion sensor output based on said sensed motion, and a controller configured to move the transceiver apparatus from a lower power configuration to an intermediate power configuration in response to the motion sensor sensing motion, wherein in the intermediate power configuration the controller is configured to monitor output from at least the at least one photodetector and/or the receiver circuitry and move the transceiver apparatus from the intermediate power configuration to a higher power configuration in response to the monitored output being indicative that the at least one photodetector has received light representative of an optical wireless communication signal.

The present application is applied for the field of optical networking technologies, and provides an optical networking method, an optical communication device and an optical networking system, which can use natural light to realize optical networking communication between optical communication devices and can effectively prevent interference from electromagnetic signals.