Abstract: In a network of data devices having routing functions, a controller within the network core is arranged to monitor the status and capabalities of each data device and to check for the availability of network functions which alter the capabilities of the data devices. The controller changes the configuration of the data devices to gain the new functionality, or alters the routing behavior so that certain control data packets are forwarded to a function processor which performs processing on behalf of the data devices in a proxy manner. The function processor provides virtual functions to the data devices.

Abstract: A wireless communications device has network interfaces for accessing cellular data networks and Wi-Fi wireless local area networks. Wi-Fi offload allows data traffic to be moved away from the cellular network to the Wi-Fi network. To avoid any existing data sessions being broken during offload, Proxy Mobile IP (PMIP) must be supported by a Wi-Fi access point and associated Mobile Access Gateway. Before Wi-Fi association and authentication, the wireless communication device scans the surrounding area for access points and determines which of the access points supports PMIP before selecting one for association.

Abstract: The disclosure relates to a dual network access point capable of establishing a home wireless network and a further secondary wireless network for a number of wireless devices. The first wireless network is a private home WLAN while the second wireless network is a guest network or a hotspot network. To prevent secondary network users impacting the performance of the first network, the access point monitors the devices connected to the first network and adjusts the advertised minimum supportable rate on the second network.

Abstract: In a Proxy Mobile IPv6 (PMIP) network, a mobile node can roam between different access networks while maintaining a consistent IP address for session continuity. To provide access to a user's home LAN resources, even when the user's mobile node is not directly attached to the home LAN, a local mobility anchor and mobility access gateway are configured to authenticate the mobile node credentials and if authorized, to provide access to the user's LAN resources by via data tunnels and routing table reconfigurations.

Abstract: In a hotspot Wi-Fi network, users can access the Internet from a variety of access points. The users' credentials are centrally authenticated within the network core to ensure they are allowed on the hotspot network. To improve security and provide selective access, a further authenticator function in the network manages access to private and/or restricted network resources.

Abstract: Embodiments provide a traffic control system for WLAN access points. The traffic control system works in dependence on a first input-user priority (supplied by an authentication server). This allows different service levels to be provided to different classes of customer. In addition, the traffic control system polices and/or shapes traffic based on a second input—a modulation rate detector, which measures the modulation rate at which each connected client is sending its traffic, and uses it to indirectly cause fairer use of the available air interface capacity (e.g. by causing TCP streams to back off when they detect packet loss). Finally, for some embodiments where public Wi-Fi is being delivered through private Wi-Fi access points, the traffic control system is to manage the air interface utilization split between public and private WiFi users, to ensure that private users do not have their Wi-Fi air interface network capacity unduly impaired by public users.

Abstract: A public wireless access point network includes authorized access points sharing the same SSID and connected to a network core which implements centralized authentication so that wireless client devices can roam between authorized access points. Each authorized access point is adapted to detect the presence of unauthorized rogue access points posing as authorized access points. The authorized access points inspect data packets received from wireless client devices which have roamed into range and from the addressing information in the MAC layer and IP layer can determine whether the wireless device has previously connected to a rogue access point. If such a determination is made, the user of the device is alerted that their confidential information may have been compromised.

Abstract: The disclosure relates to a dual network access point capable of establishing a home wireless network and a further secondary wireless network for a number of wireless devices. The first wireless network is a private home WLAN while the second wireless network is a guest network or a hotspot network. To prevent secondary network users impacting the performance of the first network, the access point monitors the devices connected to the first network and adjusts the advertised minimum supportable rate on the second network.

Abstract: A wireless access point (100) which comprises a private device list (140), a private BSS and a public BSS. When a mobile terminal (400) connects to the private BSS (120) a unique identifier (such as a MAC address) is stored in the private device list. Any device whose unique identifier is stored in the private device list is prevented from subsequently connecting to the public BSS (130).

Abstract: In a network of data devices having routing functions, a controller within the network core is arranged to monitor the status and capabalities of each data device and to check for the availability of network functions which alter the capabilities of the data devices. The controller changes the configuration of the data devices to gain the new functionality, or alters the routing behavior so that certain control data packets are forwarded to a function processor which performs processing on behalf of the data devices in a proxy manner. The function processor provides virtual functions to the data devices.

Abstract: Embodiments provide a traffic control system for WLAN access points. The traffic control system works in dependence on a first input-user priority (supplied by an authentication server). This allows different service levels to be provided to different classes of customer. In addition, the traffic control system polices and/or shapes traffic based on a second input—a modulation rate detector, which measures the modulation rate at which each connected client is sending its traffic, and uses it to indirectly cause fairer use of the available air interface capacity (e.g. by causing TCP streams to back off when they detect packet loss). Finally, for some embodiments where public Wi-Fi is being delivered through private Wi-Fi access points, the traffic control system is to manage the air interface utilization split between public and private WiFi users, to ensure that private users do not have their Wi-Fi air interface network capacity unduly impaired by public users.

Abstract: In a hotspot Wi-Fi network, users can access the Internet from a variety of access points. The users' credentials are centrally authenticated within the network core to ensure they are allowed on the hotspot network. To improve security and provide selective access, a further authenticator function in the network manages access to private and/or restricted network resources.

Abstract: A wireless access point (100) which comprises a private device list (140), a private BSS and a public BSS. When a mobile terminal (400) connects to the private BSS (120) a unique identifier (such as a MAC address) is stored in the private device list. Any device whose unique identifier is stored in the private device list is prevented from subsequently connecting to the public BSS (130).

Abstract: A wireless communications device has network interfaces for accessing cellular data networks and Wi-Fi wireless local area networks. Wi-Fi offload allows data traffic to be moved away from the cellular network to the Wi-Fi network. To avoid any existing data sessions being broken during offload, Proxy Mobile IP (PMIP) must be supported by a Wi-Fi access point and associated Mobile Access Gateway. After Wi-Fi association and authentication, the wireless communication device probes the access point and MAG to determine whether PMIP is supported.

Abstract: A wireless communications device has network interfaces for accessing cellular data networks and Wi-Fi wireless local area networks. Wi-Fi offload allows data traffic to be moved away from the cellular network to the Wi-Fi network. To avoid any existing data sessions being broken during offload, Proxy Mobile IP (PMIP) must be supported by a Wi-Fi access point and associated Mobile Access Gateway. Before Wi-Fi association and authentication, the wireless communication device scans the surrounding area for access points and determines which of the access points supports PMIP before selecting one for association.

Abstract: A public wireless access point network includes authorised access points sharing the same SSID and connected to a network core which implements centralised authentication so that wireless client devices can roam between authorised access points. Each authorised access point is adapted to detect the presence of unauthorised rogue access points posing as authorised access points. The authorised access points inspect data packets received from wireless client devices which have roamed into range and from the addressing information in the MAC layer and IP layer can determine whether the wireless device has previously connected to a rogue access point. If such a determination is made, the user of the device is alerted that their confidential information may have been compromised.

Abstract: In a Proxy Mobile IPv6 (PMIP) network, a mobile node can roam between different access networks while maintaining a consistent IP address for session continuity. To provide access to a user's home LAN resources, even when the user's mobile node is not directly attached to the home LAN, a local mobility anchor and mobility access gateway are configured to authenticate the mobile node credentials and if authorised, to provide access to the user's LAN resources by via data tunnels and routing table reconfigurations.

Abstract: A recognizer is provided with a priori probability values (e.g., from some previous recognition) indicating how likely the various words of the recognizer's vocabulary are to occur in the particular context, and recognition "scores" are weighted by these values before a result (or results) is chosen. The recognizer also employs "pruning" whereby low-scoring partial results are discarded, so as to speed the recognition process. To avoid premature pruning of the more likely words, probability values are applied before the pruning decisions are made. A method of applying these probability values is described.

Abstract: A recognition system includes a speech recognition processing unit for processing input speech signals to indicate similarity to predetermined patterns to be recognized. The recognition processing unit is arranged to repeatedly partition the input speech signal into a pattern-containing portion and, preceding and following the pattern-containing portions, noise or silence portions, and to identify a pattern corresponding to the pattern containing portion. An output supplies a recognition signal indicating recognition of one of the patterns. A pause detector detects the noise or silence portion which follows the pattern-containing portion. In response to its detection, a signal identifying the pattern currently corresponding to the pattern portion is supplied to the output. Also provided are similarly operating rejection portions.