Abstract: A scheduling and processing method and apparatus for a wireless fidelity (WiFi) station (STA), which resolve a prior-art problem that when multiple STAs are connected to WiFi by means of one access point (AP), due to bandwidth contention, once a STA sensitive to a radio frequency signal is connected to the WiFi, the STA may occupy almost all bandwidth for data exchange, causing a decrease in quality of service of data transmission of the other STAs. The method includes the following steps: acquiring network connection information, within a predetermined time, of STAs that are connected to a WiFi network by means of an AP; sorting the network connection information of the STAs in accordance with priorities according to a predetermined algorithm, to obtain a level list of the STAs; and scheduling and processing to-be-processed data of a corresponding STA according to the level list.

Abstract: A communication interference processing method includes: obtaining an access band of a wireless wide area network and a working channel of a Wi-Fi wireless local area network; and if interference exists between the access band of the wireless wide area network and the working channel of the Wi-Fi wireless local area network, and no Wi-Fi user is currently accessing the Wi-Fi wireless local area network, changing the working channel of the Wi-Fi wireless local area network so that no interference exists between the working channel of the Wi-Fi wireless local area network after the change and the access band of the wireless wide area network. In the embodiments of the present invention, the wireless router may automatically adjust the working channel of the Wi-Fi wireless local area network, thereby effectively avoiding the problem of interference between a network signal of the wireless wide area network and a Wi-Fi signal.

Abstract: A circuit for avoiding channel interference, including a Wireless Fidelity (Wi-Fi) chip and at least one first single-pole multi-throw switch, where a movable end of the first single-pole multi-throw switch is connected to a signal transmit pin of the Wi-Fi chip; one non-movable end of the first single-pole multi-throw switch is connected to a first signal transmit tributary while another is connected to a second signal transmit tributary; and when the Wi-Fi chip determines that a first channel and a second channel interfere with each other, the movable end of the first single-pole multi-throw switch is controlled to connect to the second non-movable end of the first single-pole multi-throw switch, where the first channel is a wireless local area network channel, and the second channel is different from the wireless local area network channel.

Abstract: A wireless fidelity (Wi-Fi) network connection method, a Wi-Fi controller and a Wi-Fi device. The Wi-Fi network connection method includes acquiring, by a first Wi-Fi device, at least one packet broadcasted by a second Wi-Fi device, where each packet includes channel information, determining, by the first Wi-Fi device, target channel information according to the channel information of the at least one packet, and performing, by the first Wi-Fi device according to the target channel information, Wi-Fi network access or providing a hotspot service for a user equipment.

Abstract: Embodiments of the present invention disclose a packet transmission method and system, and a station, which are used to improve, without increasing cost, data transmission efficiency by optimizing a Wi-Fi packet exchange. The method in the embodiments of the present invention includes: establishing, by a first station, a block acknowledgement connection by negotiating with a second station by using an access point; and if the block acknowledgement connection is successfully established, forwarding, to the second station by using the access point, a data packet sent by the first station.

Abstract: A network access method, device, and system. The method includes: detecting, by a mobile wireless interconnection device, whether interference exists between a first channel and a second channel, where the first channel is between the mobile wireless interconnection device and a station, and the second channel is between the mobile wireless interconnection device and a hotspot access device; if interference exists, reducing, by the mobile wireless interconnection device, its own transmit power, so that no interference exists between the first channel and the second channel, and the station accesses the Internet by using the mobile wireless fidelity device and the hotspot access device.

Abstract: An access control method for a wireless fidelity (WiFi) device and a WiFi device. The method includes: receiving, at a user layer of the WiFi device, an access request for accessing the WiFi device based on a service set identifier (SSID), where the access request includes a request for accessing a management interface web user interface (WEBUI) of the WiFi device; determining, at the user layer of the WiFi device, whether a tag of the received access request is the same as one of tags that are preset for SSIDs forbidden to access the WiFi device; if the determination result is positive, rejecting the access request; if the determination result is negative, accepting the access request. In this way, access control of a WiFi device can be implemented in a simple manner.

Abstract: A communication interference processing method includes: obtaining an access band of a wireless wide area network and a working channel of a Wi-Fi wireless local area network; and if interference exists between the access band of the wireless wide area network and the working channel of the Wi-Fi wireless local area network, and no Wi-Fi user is currently accessing the Wi-Fi wireless local area network, changing the working channel of the Wi-Fi wireless local area network so that no interference exists between the working channel of the Wi-Fi wireless local area network after the change and the access band of the wireless wide area network. In the embodiments of the present invention, the wireless router may automatically adjust the working channel of the Wi-Fi wireless local area network, thereby effectively avoiding the problem of interference between a network signal of the wireless wide area network and a Wi-Fi signal.

Abstract: An all optical network for optical signal traffic provides at least a first ring with at least a first clockwise fiber, a second counter-clockwise fiber and a plurality of network nodes. Each node has at least a WDM transponder that with a line-side transmitter and a client-side receiver in a first direction, and a line-side receiver and a client-side transmitter in an opposing second direction. The line-side receiver includes a fixed or a tunable optical wavelength filter. At least a first add and a first drop broadband couplers are positioned on each fiber. Each coupler has first and second ports for through traffic and a third port for adding or dropping local traffic. The first add and first drop broadband couplers are configured to minimize a pass-through loss in each fiber. If there are multiple WDM transponders, their wavelengths are added to the ring either in series or in parallel. All wavelengths dropped from the ring are selected by each individual WDM transponder in a parallel or serial manner.

Abstract: An optical signal transmitter is disclosed that transmits an optical signal with corresponding Wavelength Division Multiplexing (WDM) channels and Time Division Multiplexing (TDM) channels. The transmitter is comprised of a laser, a dispersion system, and a modulator. The laser generates and transmits a narrow laser pulse comprised of a plurality of wavelength channels. The dispersion system broadens the narrow laser pulse into a wide laser pulse. The modulator modulates the wide laser pulse based on an electric modulation signal comprised of a plurality of time slot channels wherein the time slot channels in the electric modulation signal correspond to the wavelength channels in the wide laser pulse respectively. The modulator transfers a modulated wide laser pulse. Channels of the modulated wide laser pulse are hybrid wavelength and time slot channels. The transmitter singularly transmits a WDM optical signal comprised of multiple wavelength channels.

Abstract: A system for reducing the influence of polarization mode dispersion (PMD) in high speed fiber optical transmission channels. A signal is forward error correction (FEC) encoded according to an FEC code that defines a specified error tolerance per codeword. The invention then effectively randomizes the input polarization of the signal before transmission, in order to reduce the likelihood that PMD will distort one or more codewords beyond the allowed error tolerance. The invention will thereby increase the PMD-limited transmission distance in an optical transmission system.

Abstract: A PMD mitigation system is disclosed that is comprised of an interface coupled to a control system. The interface receives an optical signal and transfers the optical signal to the control system. The control system receives the optical signal from the interface, recovers a clock signal from the optical signal, optically reshapes the optical signal using the clock signal to generate a PMD mitigated signal, and transfers the PMD mitigated signal to the interface. The interface transmits the PMD mitigated signal. The PMD mitigation system advantageously mitigates PMD in the optical signal by optically reshaping the optical signal.

Abstract: An all-optical reference node in an optical communication network detects the power in each channel and, using an optical power monitor and a series of voltage-controlled attenuators connected in a feedback loop, adjusts the power in each channel so as to equalize the power in all channels. The optical reference node also removes amplified spontaneous emissions. Likewise, the power of each channel added at an add/drop node is equalized to the power in the channels that pass through the add/drop node. Thus the power in the respective channels is equal through the network, and amplifiers located at intervals on the network are not driven into saturation as they attempt to amplify weaker signals. According to another embodiment, a simplified optical communication network contains only passive components.

Abstract: An all optical network for optical signal traffic provides at least a first ring with at least a first clockwise fiber, a second counter-clockwise fiber and a plurality of network nodes. Each node has at least a WDM transponder that with a line-side transmitter and a client-side receiver in a first direction, and a line-side receiver and a client-side transmitter in an opposing second direction. The line-side receiver includes a fixed or a tunable optical wavelength filter. At least a first add and a first drop broadband couplers are positioned on each fiber. Each coupler has first and second ports for through traffic and a third port for adding or dropping local traffic. The first add and first drop broadband couplers are configured to minimize a pass-through loss in each fiber. If there are multiple WDM transponders, their wavelengths are added to the ring either in series or in parallel. All wavelengths dropped from the ring are selected by each individual WDM transponder in a parallel or serial manner.

Abstract: A Metropolitan Area Network (MAN) is disclosed that is comprised of a central node, an optical fiber, a first low insertion loss Optical Add-Drop Multiplexer (O-ADM), a second low insertion loss O-ADM, and a third low insertion loss O-ADM. The first, second, and third O-ADMs are coupled to the optical fiber and configured to drop wavelengths from an optical signal. The first, second, and third O-ADMs each have an insertion loss of less than approximately 1.00 dB. The low insertion loss O-ADMs create an efficient MAN that can grow much larger than current MANs in the absence of optical line amplifiers.

Abstract: An optical signal transmitter is disclosed that transmits an optical signal with corresponding Wavelength Division Multiplexing (WDM) channels and Time Division Multiplexing (TDM) channels. The transmitter is comprised of a laser, a dispersion system, and a modulator. The laser generates and transmits a narrow laser pulse comprised of a plurality of wavelength channels. The dispersion system broadens the narrow laser pulse into a wide laser pulse. The modulator modulates the wide laser pulse based oh an electric modulation signal comprised of a plurality of time slot channels wherein the time slot channels in the electric modulation signal correspond to the wavelength channels in the wide laser pulse respectively. The modulator transfers a modulated wide laser pulse. Channels of the modulated wide laser pulse are hybrid wavelength and time slot channels. The transmitter singularly transmits a WDM optical signal comprised of multiple wavelength channels.

Abstract: A fiber optic system implementing an amplification system is disclosed that provides distributed optical amplification through remote pump technology. The fiber optic system is comprised of a transmitting system, an amplification system, and a receiving system. The amplification system is comprised of a signal processing system and a laser system. The transmitting system transmits an optical signal that includes a C-band and L-band to the signal processing system. Concurrently, the laser system receives a single laser signal and transfers the single laser signal to the signal processing system. The signal processing system receives the single laser signal and the optical signal that includes the C-band and L-band, and combines the optical signal and the single laser signal to amplify the C-band and L-band of the optical signal.

Abstract: A system for reducing the influence of polarization mode dispersion (PMD) in high speed fiber optical transmission channels. A signal is forward error correction (FEC) encoded according to an FEC code that defines a specified error tolerance per codeword. The invention then effectively randomizes the input polarization of the signal before transmission, in order to reduce the likelihood that PMD will distort one or more codewords beyond the allowed error tolerance. The invention will thereby increase the PMD-limited transmission distance in an optical transmission system.