Abstract: The present invention relates to a system and method for distributed monitoring of perturbation in Gigabit Passive Optical Network (GPON) architecture. The system based on Brillouin Optical Time Domain Analysis (BOTDA) includes a BOTDA module; where in the module includes signal source module, an optical circulator connected to a Wavelength Division Multiplexer (WDM); a wavelength reflector deployed near to an Optical Network Unit (ONU) along the optical fiber line; a photodetector connected to the optical circulator; and a signal processing module.

Abstract: An apparatus for adjusting a tilt angle of a vertically positioned antenna on a pole that includes a top mounting assembly formed by a first link and a second link, the first and second link each including a top edge and a bottom edge, the top edges of the first link and the second link are pivotally connected together by a first hinge such that the second link is rotatable about the first hinge in relation to the first link to adjust an angle between the first link and the second link.

Abstract: The present invention discloses a system for full-duplex data transmission using polarization multiplexing comprises a central station having a first means for processing downlink signals and a second means for processing uplink signals, and a remote antenna unit connected to the central station via a transmission medium, having a third means for processing downlink signals and a fourth means for processing uplink signals, characterised in that the remote antenna unit is configured to receive downlink signals from the central station, and then to split a portion of the downlink signals to be used as uplink data transmission simultaneously with transmission of the downlink.

Abstract: A method for enhancing robustness of uplink coordinated multi-point (UL CoMP) procedure in a long term evolution (LTE) communication network (100) is provided herein. The method includes selecting at least one coordinated cell (112), by a serving cell (111), for uplink (UL) monitoring of user equipment (113). The method further includes sending at least one UL activate monitoring command message, by the serving cell (111), to the at least one coordinated cell (112). The method further includes receiving an event A3 measurement report by the serving cell (111), from the at least one coordinated cell (112). The method further includes performing UL CoMP procedure, by the serving cell (111), upon receiving the event A3 measurement report.

Abstract: This disclosure describes a wavelength division multiplexing passive optical network system (100) comprising an optical line terminal (180) for controlling transmission of data that are carried by optical signals across the optical network system along an upstream or downstream path; a signal modulating loop circuit including a circulator (110) connected to the optical line terminal (180) for determining the transmission paths of the optical signals; a splitter (120) connected to the circulator (110) for splitting the optical signals into a first portion of optical signals and a second portion of optical signals according to a predetermined ratio; an amplifier (160) connected to the splitter (120) for amplifying the second portion of optical signals; and a modulator (170) connected in between the amplifier (160) and the splitter (120) for modulating the amplified second portion of optical signals to be transmitted to the circulator (110); a converter (140) connected to the splitter (130) for converting the fi

Abstract: The present invention discloses an optical line terminal that includes one or more downstream signal processing means for generating a downstream signal, and converting data of the downstream signal into a serial data; a wavelength division multiplexing means for combining the serial data of different wavelengths together and then performing transmission of the combined signals; and one or more upstream signal processing means for extracting data of an upstream signal from the wavelength division multiplexing means. The terminal includes an extender including a first optical amplifier for amplifying the upstream signal, a second optical amplifier for amplifying the downstream signal, a Raman wavelength division multiplexing module for separating and combining data signal and pump light from Raman pump unit, and a Raman pump unit coupled to the Raman wavelength division multiplexing module to provide Raman amplification to the upstream and downstream signals.

Abstract: The present invention discloses a system for full-duplex data transmission using polarization multiplexing comprises a central station having a first means for processing downlink signals and a second means for processing uplink signals, and a remote antenna unit connected to the central station via a transmission medium, having a third means for processing downlink signals and a fourth means for processing uplink signals, characterised in that the remote antenna unit is configured to receive downlink signals from the central station, and then to split a portion of the downlink signals to be used as uplink data transmission simultaneously with transmission of the downlink.

Abstract: A system and method for automatically assigning multiple tasks with multiple objectives to multiple teams (group of technician on field) is provided. This invention provides a means to minimize total operation cost and business process through the optimization consisting of the best assignment of resources to available task. In the tasks assignment and resource allocation method disclosed herein, new genetically adapted search agent (Genetic algorithm) are employed to improve the population, to provide the most optimum match matrix among jobs and teams, and calculate the best score of the fittest chromosome. The assignments generated by this method satisfy all constraints.

Abstract: There is provided a communications system (10) comprising a plurality of base stations (12), a central station (16) and a fiber optic communications network (14). Each base station (12) comprises a shelter (20) for a passenger awaiting transport, the shelter (20) having a wireless network access point (22). The central station (16) is arranged to facilitate communication between each base station (12) and a communications network (18) and the fiber optic communications network (14) is arranged to facilitate communication between each base station (12) and the central station (16).

Abstract: Processes for forming waveguides (200) using multiple co-planar layers of LTCC substrates (212, 212a, 212b) are described. Registration holes (222) on the substrates help align layering of the substrates. Arrays of circuit patterns are printed on each substrate, with each circuit being made up of conductor pattern (213) and/or via holes (224). Cavity alignment holes (226) formed around a periphery of each circuit allow alignment marks to be printed on the substrates for vision inspection. Similarly, circuit orientation holes (227) associated with each circuit allow orientation marks to be printed on the substrates to identify orientation of circuits in each finally formed waveguide. Substrate orientation holes (225) allow marks to be printed on one side of each substrate for alignment during screen printing. These in-process vision inspections and quality assurance tests allow product quality and process yields to improve.

Abstract: A screen printing system with positional alignment for aligning a substrate with a screen mask. The substrate and the screen mask have two registration holes for facilitating the positional alignment. The positional alignment method includes calculating alignment values for correcting the position of the substrate based on the determined offsets between the registration holes of the substrate and the screen mask. The position of the substrate is corrected based on the calculated alignment values so that registration holes of the substrate are vertically aligned with the registration holes of the screen mask.

Abstract: The present invention relates to a system for interoperating a full-duplex radio-over-fiber (RoF) network in a fiber-to-the-home (FTTH) network and to a method associated with the system. The system comprises, at the central station (100), a laser diode (105a), a first optical circulator (105b), an optical carrier generating unit (105c), and a second optical circulator (105d). The system comprises, at a base station (101), a third optical circulator (101a) a band pass filter (101b) coupled to the third optical circulator (101a) and configured to select only the optical signal having a corresponding pass band in which is used for converting an uplink signal as a remote local oscillator signal. The unselected optical signal is transmitted as downlink data.

Abstract: The present invention relates to a method of dynamic channel switching in a wireless mesh network that is in conformance with an IEEE 802.11s standard. The method comprises the steps of transmitting a request frame to a node for scanning a channel associated with the node; determining a link quality of the channel; receiving a response frame from the node; and switching to the channel if the switching metric is larger than a switching threshold, wherein if otherwise, remain unswitched. The switching metric integrates the interference, transmission frame size, latency of channel switching and data rate of the node on the channel.

Abstract: An apparatus and method for dual re-configurable logic devices for MIMO-OFDM communication systems. The apparatus includes two FPGA devices, wherein the FPGA 1 has a centralized processing unit that manages the data flow between both MIMO OFDM modem. The apparatus and method support transmitting and receiving via a plurality of dual-polarized antennas. The modulated transmitted from FPGA 1 uses antenna 1 horizontal polarization to antenna N/2 horizontal polarization and the modulated transmitted from FPGA 2 uses antenna N/2+1 vertical polarization to antenna N vertical polarization.

Abstract: A method of analyzing network traffic comprising the steps of providing reference network traffic information associated with a remote access server and obtaining current network traffic information associated with the remote access server. Current network traffic information is analyzed using statistical analysis to determine whether values of the current network traffic information are within or outside a statistical range associated with the reference network traffic information. If a value of the current network traffic information is outside the statistical range, the value of the current network traffic information is an outlier which is included in an outlier information table, and an alert is generated. If a value of the current network traffic information is within the statistical range, a similarity value between the value of the current traffic information and outliers is determined. An action is then performed.

Abstract: A tunable coil antenna (2) is disclosed, in which the tunable coil antenna (2) comprises a first antenna terminal (12), and a series of two or more incomplete turns (4), each incomplete turn (4) comprising a first end (8) and a second end (10), the first end (8a) of the first incomplete turn (4a) being electrically connected to the first antenna terminal (12), the first end (8) of each subsequent incomplete turn (4) arranged to be electrically connected to the second end (10) of a preceding incomplete turn (4) in the series, the second end (10) of each incomplete turn (4) arranged to either be electrically connected to the first end (8) of a subsequent incomplete turn (4) in the series or to provide a second antenna terminal.

Abstract: A system for supplying energy is provided. The system comprises a shelter for users of an outdoor recreational area. The shelter has a roof portion and photovoltaic cells disposed on the roof portion, the photovoltaic cells being arranged to convert solar energy into electrical energy. The system also comprises an energy distribution system arranged to receive converted electrical energy from the photovoltaic cells, and to receive grid electrical energy from a power distribution network. The energy distribution system is arranged to provide converted electrical energy to an electrically powered component of the system at times when there is sufficient converted electrical energy to power the component, and to provide grid electrical energy to the component at times when there is insufficient converted electrical energy to power the component.

Abstract: A system within a single access point comprises a network management module, a virtual access point creation module and a data traffic handling module. The virtual access point creation module creates multiple virtual access points each represented by a unique service set identifier (SSID). The network management module provides at least one tunnel to accommodate the multiple virtual access points. The data traffic handling module receives and redirects data from the multiple virtual access points to and from the at least one tunnel.

Abstract: A system (10) for supplying energy is provided. The system (10) comprises a shelter (12) for a passenger awaiting transport. The shelter (12) has a roof portion (14) and photovoltaic cells (16) disposed on the roof portion (14). The photovoltaic cells (16) are arranged to convert solar energy into electrical energy. The system (10) also comprises an energy distribution system (18) arranged to receive electrical energy from the photovoltaic cells (16) and to provide the electrical energy to at least one electrically powered component (20, 22, 24, 26, 28, 30, 32, 34) of the system (10).

Abstract: An apparatus and method for dual re-configurable logic devices for MIMO-OFDM communication systems. The apparatus includes two FPGA devices, wherein the FPGA 1 has a centralized processing unit that manages the data flow between both MIMO OFDM modem. The apparatus and method support transmitting and receiving via a plurality of dual-polarized antennas. The modulated transmitted from FPGA 1 uses antenna 1 horizontal polarization to antenna N/2 horizontal polarization and the modulated transmitted from FPGA 2 uses antenna N/2+1 vertical polarization to antenna N vertical polarization.