Abstract: A network management device and a method for the network management device is provided. The method for the network management device involves storing an indication of a frequency band used by a wireless backhaul network. One or more corresponding Wi-Fi channels which overlap with the frequency band are identified. A message indicating that the one or more corresponding Wi-Fi channels are not available for use is generated and transmitted to wireless network devices in a local Wi-Fi network. A network device and method for a network device are also provided. The method for the network device involves receiving the message, including the indication of the one or more corresponding Wi-Fi channels, and disabling communication with client devices over the one or more Wi-Fi channels.

Abstract: A network management device for controlling one or more networks, and a computer-implemented method for the network management device is provided. The method involves monitoring network traffic to generate device fingerprint data, the device fingerprint data including a plurality of records, each record associated with one of a plurality of records, each record associated with one or a plurality of devices in the one or more networks and including a respective MAC address and a set of one or more characteristics associated with a respective device. The method involves determining whether two or more devices are utilizing a common MAC address based at least on the device fingerprint data, and performing a predetermined action dependent on the determining whether two or more devices are utilizing the common MAC address.

Abstract: A wireless transceiver for a wireless communication network has an offset Gregorian antenna arrangement comprising a primary reflector dish, an electrically conductive reflector member comprising a secondary reflector and a conductive support wall, a planar array of antenna elements arranged as a feed for transmitting radio frequency signals to the secondary reflector and/or for receiving radio frequency signals from the secondary reflector and a conductive support block configured to support the planar array of antenna elements. The conductive support wall is connected directly to the conductive support block, and the conductive support wall is configured to be substantially perpendicular to the planar array of antenna elements.

Abstract: A subscriber module of a fixed wireless access communication system comprises an offset Gregorian antenna arrangement, an array of antenna elements arranged as a feed, a beamforming network and a processor. The processor is configured to provide, to the beamformer, a pre-determined plurality of antenna weight vectors configured to form a plurality of beams, the orientations of the plurality of beams being arranged in a grid comprising a plurality of rows, each of the pre-determined plurality of antenna weight vectors being configured to form a respective beam from the primary reflector dish of the Gregorian antenna arrangement by forming a respective feed beam from the array of antenna elements. The relationship between the azimuth and elevation direction of each feed beam and the azimuth and elevation direction of the respective beam from the primary reflector dish is a non-linear function of azimuth and elevation.

Abstract: Radio resource is allocated to a subscriber module in a fixed wireless access cellular wireless system comprising an access point and a plurality of subscriber modules at static locations, each subscriber module having a directional antenna aligned with the access point, and the area of coverage of the access point having a plurality of sectors. It is determined, at a first repetition rate, whether the subscriber module is suitable for frequency re-use based on a first criterion. If so, radio resource is allocated for communication to the subscriber module that is also allocated to adjacent sectors. Otherwise, a measure of quality of communication on a channel between the subscriber module and the access point is determined, more frequently than the first repletion rate, and radio resource is allocated for communication to the subscriber module, that is also allocated to an adjacent sector, dependent on the measure meeting a second criterion.

Abstract: Radio resource is allocated to a subscriber module in a fixed wireless access cellular wireless system comprising an access point and a plurality of subscriber modules at static locations, each subscriber module having a directional antenna aligned with the access point, and the area of coverage of the access point having a plurality of sectors, each sector being served by a respective radio transceiver of the access point. The same frequency allocation is allocated to each sector, the radio resource for each sector being allocated as a plurality of time slots each having the same frequency allocation. A suitability of the subscriber module for time slot re-use is determined based on a first criterion. If is suitable for time slot re-use based on the first criterion, time slots are allocated for communication to the subscriber module that are also allocated to an adjacent sector.

Abstract: An antenna array assembly comprises a ground plane, an array of patch radiator elements having a plurality of rows and a plurality of columns of patch radiator elements disposed in a plane parallel to a first face of the ground plane and a non-conductive cover disposed in a generally parallel relationship to the ground plane. The non-conductive cover has a first face, disposed towards the array of patch radiator elements, having an arrangement of alternating parallel ridges and grooves, in which, in a cross section in a plane perpendicular to the first face of the ground plane, the ridges extend towards the array of patch radiator elements and the grooves extend away from the array of patch radiator elements. Each row of patch radiator elements is disposed in a parallel relationship to each ridge.

Abstract: A network edge device configured to perform a method for controlling access to services in a network, the network including at least one device configured to provide a service, the service being associated with a port is provided. The method involves performing a port identification scan on the network to generate port data representing the service and the port; obtaining port vulnerability data; generating a port vulnerability score for the port based on the port data and the port vulnerability data; obtaining a threshold port vulnerability score; and controlling access to the port in dependence on a comparison of the port vulnerability score with the threshold port vulnerability score.

Abstract: An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate and a first and second elongate passive radiator each comprising a plurality of conductive parts electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. At least some of the conductive parts of a respective elongate passive radiator are disposed in an arrangement having parallel ridges and grooves, in which, in a cross section in a plane parallel to the first face of the ground plate, the ridges extend towards the linear array and the grooves extend away from the linear array.

Abstract: A first wanted signal beam is formed at a multi-element antenna array to receive a first wanted signal having a first and second sub-carrier, each having known transmitted modulation, and the subcarriers are combined using a first linear relationship determined to reduce a component of the wanted signal. A first orthogonal beam is formed that is orthogonal to the first wanted signal beam, and a first subcarrier received in the first orthogonal beam corresponding in frequency to the first subcarrier of the first wanted signal is combined, using the first linear relationship, with a second subcarrier received in the first orthogonal beam corresponding in frequency to the second subcarrier of the first wanted signal. The linear combinations are processed to generate weights, which are applied to interference received in the first orthogonal beam to produce weighted interference which is combined with the received first wanted signal to reduce interference.

Abstract: A far field radiation pattern is determined for a multi-element antenna array comprising a plurality of antenna elements in a first plane using test apparatus comprising a support member for holding the array and a movable probe having an aperture configured to move in a second plane parallel to the first. A distance between the first and second plane is less than a quarter of a wavelength at an operating frequency of the antenna array. The movable probe radiates electromagnetic energy from the aperture and is moved in a determined trajectory in the second plane. A respective measurement of amplitude and phase of electromagnetic energy received by the antenna array is taken at a plurality of positions on the determined trajectory. The far field radiation pattern is determined from the respective measurements and from a pre-determined radiation pattern for at least one antenna element of the plurality of antenna elements.

Abstract: A method for a network device is provided, the method comprising obtaining device fingerprint data representing a first set of characteristics of a device connected to the network and an associated confidence score representative of a confidence in the first set of characteristics, obtaining a threshold confidence score, receiving a service advertisement message from the device, the service advertisement message including an indication of a second set of characteristics of the device. The method then involves determining whether the first set of characteristics are inconsistent with the second set of characteristics and performing a predetermined action in dependence on an outcome of this determining and on a comparison of the confidence score with the threshold confidence score. A network device configured to perform the method, and a non-transitory computer-readable storage medium comprising instructions for executing the method are also provided.

Abstract: A wireless network comprises a plurality of wireless clients and an access point. Broadcast of at least a first SSID service set identifier from the access point is inhibited. A first probe message from a first wireless client is received at the access point carrying a first SSID. A first request message is sent from the access point to a server of the access point requesting a wireless local area network profile associated with the first SSID. A message carrying a first wireless local area network profile for the first SSID is received at the access point from the server and a first BSSID basic service set identifier is used to establish an association between the first wireless client and the access point to provide access to a wireless local area network according to the first wireless local area network profile.

Abstract: Wireless communication is established between a first station and a second station in a wireless communication system, the first station having a beamforming network configured to form a succession of beams using antenna weight vectors selected from a pre-determined plurality of antenna weight vectors. The orientations of the beams are arranged in a grid comprising a plurality of rows. The beams of each row are spaced in angular position such that at least one beam in a respective row is positioned mid-way between the positions of two beams on an adjacent row. A succession of beams is formed to send first messages using a selected first sub-set of the antenna weight vectors. If a first message in a first beam is received at the second station, a further succession of beams is formed using a second sub-set of the antenna weight vectors selected to form beams adjacent to the first beam.

Abstract: A respective preferred installation height above ground level is determined for each of a plurality of locations for a subscriber module for receiving a radio link from an access point in a wireless network, the access point having a given height above ground level and a specified location, and the subscriber module being situated within a given geographical area including the location of the access point. The method comprises accessing elevation data for the given geographical area, processing the elevation data to generate a preferred height data file representing a preferred height for a subscriber module to be wirelessly visible by the access point at each of the plurality of locations and processing the required height data file to provide output data indicating the preferred height of the subscriber module as a function of location.

Abstract: Data is transmitted from a first wireless station comprising first and second transmitters to a second wireless station comprising first and second receivers. In the absence of radio link failure detection, first data is transmitted via a first radio link from the first transmitter to the first receiver using a first subset of first radio resource blocks and transmitting second data via a second radio link from the second transmitter to the second receiver using second subset of the first radio resource blocks. The first and second radio links are monitored for a failure. If first radio link failure is detected, the second radio link is operated using a combination of the first and second subsets of the first radio resource blocks. If second radio link failure is detected, the first radio link is operated using a combination of the first and second subsets of the first radio resource blocks.

Abstract: An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate, and a first, second, third and fourth elongate passive radiator, each comprising one or more substantially planar conductive parts which are electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. The third and fourth elongate passive radiators are disposed further from the linear array than are the first and second elongate passive radiators. Each of the third and fourth elongate passive radiators is narrower than and projects further from the ground plate than does each of the first and second elongate passive radiators.

Abstract: Packets are routed in a data network comprising a wireless mesh network and a controller providing IPv6 management traffic to nodes of the wireless network. A monitor function and a route table manager are used to generate a route table relating IPv6 addresses to each of the nodes via a respective one of a plurality of POP nodes, by accessing a pre-configured topology file, determining the reachability of each of the plurality of POP nodes from the controller by periodically sending test messages from the monitor function to each POP and detecting acknowledgement of the test messages. If a POP node is not reachable, the route table is updated to relate the IPv6 subnet of the POP that is not reachable to the address of a POP node that is reachable. A Layer 2 network is used to direct the IPv6 management traffic according to the amended route table.

Abstract: A wireless transceiver for a wireless communication network has an offset Gregorian antenna arrangement comprising a primary reflector dish, an electrically conductive reflector member comprising a secondary reflector and a conductive support wall, a planar array of antenna elements arranged as a feed for transmitting radio frequency signals to the secondary reflector and/or for receiving radio frequency signals from the secondary reflector and a conductive support block configured to support the planar array of antenna elements. The conductive support wall is connected directly to the conductive support block, and the conductive support wall is configured to be substantially perpendicular to the planar array of antenna elements.

Abstract: Wireless communication is established between a first station and a second station in a wireless communication system, the first station having a beamforming network configured to form a succession of beams using antenna weight vectors selected from a pre-determined plurality of antenna weight vectors. The orientations of the beams are arranged in a grid comprising a plurality of rows. The beams of each row are spaced in angular position such that at least one beam in a respective row is positioned mid-way between the positions of two beams on an adjacent row. A succession of beams is formed to send first messages using a selected first sub-set of the antenna weight vectors. If a first message in a first beam is received at the second station, a further succession of beams is formed using a second sub-set of the antenna weight vectors selected to form beams adjacent to the first beam.