This application relates to the field of communications technologies, and discloses a Wi-Fi communication method and an electronic device. The method includes the following steps: An AP device is connected to a first device by using a target channel. The AP device supports full-duplex communication. On this basis, when the target channel is idle, the AP device sends a control message to the first device by using the target channel, where the control message includes a time period in which the AP device occupies the target channel. The first device determines, based on the time period, a time for sending a first data frame, where the sending time is in the time period. Then the first device sends the first data frame to the AP device at the sending time by using the target channel.

Disclosed are an APR protection method and device, and a computer storage medium. A preamplifier PA of each of two optical amplifier units at two ends of a transmission line is connected to a booster amplifier BA of the other amplifier unit by an optical fiber. The method comprises: when a reception state of PA of at least one of two amplifier units is a loss of signal state and a switch chip of said amplifier unit detects a link interruption signal, activating an APR protection state of said amplifier unit which is to turn off BA output of said amplifier unit; when the switch chip of at least one of two amplifier units detects a link conduction signal, deactivating the APR protection state of the present amplifier unit to restore a state of BA of said amplifier unit to a state before the APR protection state is activated.

An optical power value transmission method and system, and a related device is disclosed. The method includes: A source network device obtains optical multiplexing section link information that indicates an optical fiber connection relationship between any two adjacent network devices between the source and a target network device of an optical multiplexing section which are located in different data communication networks. The source network device determines, based on the optical multiplexing section link information, a first output port that connected to a downstream network device by using a first optical fiber, and the downstream network device is connected to the source network device and that is indicated by the optical multiplexing section link information. The source network device obtains, on the first output port, a first output power value of an optical signal and sent it to the downstream network device by using the first optical fiber.

Embodiments herein relate to a photonic integrated circuit (PIC). The PIC may include a transmit module and a receive module. An optical port of the PIC may be coupled to the transmit module or the receive module. A semiconductor optical amplifier (SOA) may be positioned in a signal pathway between the optical port and the transmit module or the receive module. Other embodiments may be described and/or claimed.

A system and method for transmitting data using an autonomous vehicle's LIDAR system. The autonomous vehicle may transmit the data by disengaging the LIDAR system's transmitters and receivers from operating to detect external objects. The autonomous vehicle may also rotate the LIDAR system to locate one of a plurality of receivers external to the autonomous vehicle. Data stored within the autonomous vehicle may then be transmitted to an external system using a light-based communication path established between at least one of the LIDAR system's transmitters and an external receiver. The LIDAR system's transmitters and receivers may then be re-engaged so as to be operable to detect external objects.

Implementations described and claimed herein provide systems and methods for a configurable optical peering fabric to dynamically create a connection between participant sites without any physical site limitations or necessity of specialized client and network provider equipment being located within such a facility. Client sites to a network may connect to a configurable switching element to be interconnected to other client sites in response to a request to connect the first client site with a second site, also connected to network, via the switching element. A request may trigger verification of the requested and, upon validation, transmission of an instruction to the switching element to enable the cross connect within the switching element. The first site and the second site may thus be interconnected via the switching element in response to the request, without the need to co-locate equipment or to manually install a jumper between client equipment.

In order to solve the problems described above, an object of the present invention is to provide an optical communication system and a control method that automatically adjust a branching ratio of an optical splitter in accordance with a connection of a new ONU. An optical communication system according to the present invention causes an operation system or a DBA (Dynamic Bandwidth Allocation) function and a determining unit of a branching ratio of an optical splitter to cooperate with each other, adjusts the branching ratio so as to enable ranging with an active ONU, and takes into consideration an initial connection sequence through which an ONU is newly connected.

A photo-electron fusion switch that can perform optical communications without any trouble, even when nodes of a communication source and a communication partner that are large in transmission capacity are connected, and makes it possible to realize a concentrated arrangement of devices having similar functions and reduce the communication processing time is connected to communication source's information processing devices and communication partner's information processing devices and information processing devices that are each different in transmission speed so as to configure an optical network system. The photo-electron fusion switch includes a network processor of an electronic circuit for controlling packet switch functions, a plurality of optical transmitter/receivers that can support coherent communications and has a photoelectric conversion function capable of transmitting and receiving optical signals different in transmission speed, an optical line switching device, and a plurality of multiplexing/separators. Each multiplexing/separator simultaneously transmits and receives respective optical signals different in transmission speed to and from the nodes via optical waveguides.

A method and apparatus that cancels or reduces DC offset in a fully-differential optical receiver. The method includes receiving differential optical signals, converting, with photodetectors, the differential optical signals to differential current signals representative of the differential optical signals, converting, using a transimpedance amplifier, the differential current signals to differential intermediate voltage signals, amplifying, using a main amplifier, the differential intermediate voltage signals to generate differential output voltage signals, and cancelling a DC component of the differential output voltage signals using a fully differential DC cancellation circuit. Output offset may also be cancelled or reduced using digital control.

Downhole telemetry systems and related methods adaptively compensate for channel non-linearity effects. To compensate for channel non-linearity, the optimum signal generation parameters are determined that produce the desired modulated pressure variation at the surface. The signal generation parameters are optimized to minimize the discrepancy between the surface detected pressure signal and the intended signal. The mud propagation channel is first estimated in light of the known modulation scheme under an ideal linear-time-invariant channel assumption. The estimated channel is used to synthesize the modulated pressure signal undergoing the mud propagation given the initial signal generation parameters. The method then varies the synthesized signal generation parameters to search for the optimal signal generation parameters. The optimal signal generation parameters are then sent over downlink channel to the downhole pulser, which is ultimately used to generate the pulse waveform.