Patents Assigned to British Telecommunications
  • Patent number: 10680843
    Abstract: A network node for use in a hybrid fiber-copper access network, wherein the node includes DSL and reverse-power feed functionality. The node has a substantially cylindrical shape such that it receives an input metallic cable at a first end, an output metallic cable at a second end and an optical fiber cable which is received at a point along the body of the node.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: June 9, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Leslie Humphrey, Ian Horsley, Ian Cooper, Trevor Linney, Trevor Morsman
  • Publication number: 20200178075
    Abstract: A computer implemented method of a network access point for secure network access by a mobile computing device, the mobile device being associated with the access point by a digitally signed record in a blockchain wherein the blockchain is accessible via a network and includes a plurality of records validated by miner computing components, the method including receiving a request from another network access point to associate the mobile device with the other access point, the request having associated identification information for the mobile device; responsive to a verification of an entitlement of the mobile device to access the network, generating a new record for storage in the blockchain, the new record associating the mobile device with the other access point and being validated by the miner components such that the other access point provides access to the network for the mobile device based on the validation of the new record.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 4, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Joshua DANIEL
  • Publication number: 20200175161
    Abstract: A computer implemented method of detecting anomalous behavior in a set of computer systems communicating via a computer network, the method including evaluating a difference in a level of activity of the computer system between a baseline time period and a runtime time period, and responsive to a determination of anomalous behavior, implementing one or more protective measures for the computer network.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 4, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Giulio Giaconi
  • Patent number: 10673869
    Abstract: A method for identifying malicious encrypted network traffic communicated via a computer network is disclosed. A malicious encrypted traffic detector is also disclosed.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: June 2, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, George Kallos, Ben Azvine
  • Publication number: 20200169997
    Abstract: The present disclosure provides a method of sending an inter-base station message between a first and second base station in a cellular telecommunications network, wherein the inter-base station message is transmitted via a relay component, the method including the relay component receiving a first inter-base station message from a first base station, wherein the first inter-base station message includes: a first address portion identifying a second and third base station, and a first content portion; the relay component transmitting a second inter-base station message to the second base station, the second inter-base station message including: a second address portion identifying the second base station, and a second content portion; and the relay component transmitting a third inter-base station message to the third base station, the third inter-base station message including: a third address portion identifying the third base station, and a third content portion, wherein the second and third content portio
    Type: Application
    Filed: June 18, 2018
    Publication date: May 28, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Salvador DIAZ SENDRA
  • Patent number: 10666697
    Abstract: Examples of the present invention provide a method of converting a multicast stream into unicast segments. In particular, sequence identifiers are generated based on a clock reference field in the transport stream packets that make up the multicast stream. Every time a new sequence identifier is calculated, a new unicast segment is generated and assigned with the new sequence identifier. Transport stream packets are placed into the new segment until a packet is processed that causes a new sequence identifier to be generated, at which point another new segment is generated and packets placed into that segment. In an improved method, random access indicators in the transports stream packets are used to further constrain when a new segment is generated, to ensure that new segments are coincident with a packet having a random access indicator. This improvement makes random access easier back and forth between and within a stream.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 26, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Stephen Appleby, Ian Crabtree, Timothy Stevens, Rory Turnbull, Ivan Roper, Michael Nilsson
  • Patent number: 10659502
    Abstract: The invention presents a method of providing feedback for receipt of a multicast video stream. The feedback mechanism allows the number of clients receiving over multicast to be determined, which can then be used to manage multicast delivery, including switching decisions between multicast and unicast. Video content is delivered over a multicast stream from a content server to a plurality of client devices. The client devices are each configured to respond at regular intervals whilst receiving the multicast video stream by transmitting an HTTP HEAD request message to the content server. The HTTP HEAD request refers to metadata relating to a manifest file associated with the video stream. The number of client devices receiving the multicast video stream is determined based on the number of HEAD requests received at the content server.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 19, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Ian Crabtree, Michael Nilsson, Rory Turnbull, Stephen Appleby
  • Publication number: 20200151011
    Abstract: A computer implemented method of executing a plurality of discrete software modules each including a machine learning algorithm as an executable software component configurable to approximate a function relating a domain data set to a range data set; a data store; and a message handler as an executable software component arranged to receive input data and communicate output data for the module, wherein the message handler is adapted to determine domain parameters for the algorithm based on the input data and to generate the output data based on a result generated by the algorithm, each module having associated a metric of resource utilization by the module, the method including receiving a request for a machine learning task; and selecting a module from the plurality of modules for the task based on the metric associated with the module.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 14, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Robert GHANEA-HERCOCK
  • Publication number: 20200153847
    Abstract: A computer implemented method to detect a data breach in a network-connected computing system including generating, at a trusted secure computing device, a copy of data distributed across a network; the computing device accessing sensitive information for the network-connected computer system and searching for at least part of the sensitive information in the copy of the data; in response to an identification of sensitive information in the copy of the data identifying the sensitive information as compromised sensitive information.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 14, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Fadi El-Moussa
  • Patent number: 10645016
    Abstract: The invention relates to a method of controlling packets in a data packet network, the method comprising the steps of: a source node sending a first set of packets to a receiver node over the data packet network via an intermediate node, wherein the first set of packets are marked as being of a class of service preventing them from being forwarded to the receiver node if a packet queue exists at an intermediate node; the source node receiving an acknowledgement of a received packet of the first set of packets from the receiver node; and the source node sending a second set of packets to the receiver node over the data packet network.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 5, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Robert Briscoe, Philip Eardley
  • Patent number: 10645632
    Abstract: A method and device are provided for allocating a Physical Cell ID, PCI, to a cell, the 5 cell being one of a plurality of cells (e.g. femtocells) within a coverage area of a larger cell's (e.g. macrocell) base station, comprising defining a plurality of bands for the larger cell based on signal strength data from the plurality of cells within the coverage area, wherein each band has a predetermined signal strength range, and allocating a PCI to a cell based on a strength of signal from the larger cell's base station and its 10 corresponding band of the plurality of bands.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: May 5, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Richard Mackenzie, Michael Fitch
  • Publication number: 20200136740
    Abstract: A spread spectrum system is used for transmitting data to devices in a distributed system. Each device has a respective spread spectrum code, and has a corresponding encoder in a central control system operating the same spread spectrum codes, the encoded data relating to the devices being aggregated over a shared channel. An additional broadcast spread spectrum coding sequence is allocated to a broadcast channel readable by a plurality of the devices using a command extraction function and used to transmit general commands for operation by the plurality of devices. Individual actuators may be arranged to respond in different ways to such a broadcast command, for example switching some on and switching others off. The broadcast may also be used to change the coding sequences allocated to individual devices, for example to cause devices to switch between idle, duplex, transmit-only and receive-only modes, allowing flexible use of the available spread-spectrum coding sequences.
    Type: Application
    Filed: January 30, 2018
    Publication date: April 30, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Hamid GHARIB, Mohammad ZOUALFAGHARI
  • Publication number: 20200136741
    Abstract: A spread spectrum system is used for transmitting data to and from devices operable as sensors and actuators in a distributed system. Communication is made through a series of aggregation nodes in a branched hierarchical network. Each device and aggregation node has a respective spread spectrum code, and has a corresponding encoder/decoder in a central control system operating the same spread spectrum codes, the encoded data relating to the devices being aggregated over a shared channel. At each level in the hierarchy the aggregated signals to/from the next level are recoded. This allows the same codes to be re-used at different levels, and in different sub-branches in the same level, increasing the number of devices that can be served on one channel.
    Type: Application
    Filed: January 30, 2018
    Publication date: April 30, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Hamid GHARIB, Mohammad ZOUALFAGHARI
  • Patent number: 10637601
    Abstract: A fixed communication network is disclosed in which a plurality of transmitters feed signals via tributary transmission lines of different lengths onto a shared network component. A timing reference signal is distributed to the transmitters. The shared network component in some embodiments takes the form of a transmission line. In order to enable the sharing of the capacity of the shared network component, each of the plurality of transmitters codes data for transmission in accordance with a code division multiple access scheme. The efficiency of usage of the shared network component is improved by synchronizing the arrival of the encoded bits at the shared network component. This is achieved by populating a store within each transmitter with a pre-set timing offset, and timing the transmission of data in accordance with the timing reference signal received by the transmitters and the pre-set timing offset.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventor: Mohammad Zoualfaghari
  • Patent number: 10635719
    Abstract: A computer implemented method for generating a pattern matching machine for identifying matches of a plurality of symbol patterns in a sequence of input symbols, the method comprising: providing a state machine of states and directed transitions between states corresponding to the plurality of patterns; applying an Aho-Corasick approach to identify one or more mappings between states in the event of a failure, of the state machine in a state and for an input symbol, to transition to a subsequent state based on the directed transitions of the state machine, characterised in that one of the symbol patterns includes a wildcard symbol, and a mapping for a state representing pattern symbols including the wildcard symbol is provided in a hash table referenced based on a key, the key being based on a unique identifier of the state and the input symbol to be received, by the pattern matching machine in use, to constitute the wildcard symbol.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: April 28, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PLC
    Inventor: James Mistry
  • Patent number: 10637847
    Abstract: Methods and systems are disclosed for enabling sensor data to be collected from sensor devices (1), the sensor devices being configured to sense a condition and to send sensor messages according to a wireless communication protocol to a wireless access point (6) of a local network (10), the sensor messages comprising sensor data indicative of said condition, said sensor messages also comprising a destination indication indicative of a predetermined network location outside the local network (10).
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: April 28, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Ian Neild, Mohammad Zoualfaghari, Tim Stevens, Richard Gedge, Paul Putland
  • Patent number: 10637767
    Abstract: Methods and apparatus for determining and using link performance measures (DL, CL) in respect of communication links (125) in a cata communication network (100) are disclosed, where the network comprises a plurality of data-forwarding nodes (120) each capable of forwarding data along a plurality of communication links (125). Link performance measures (DL, CL) are determined in dependence on end-to-end path performance measures (Es,u) received in respect of a plurality of end-to-end paths having at least one link in common, and on the basis of route information (Rs,u) identifying the links of which those end-to-end paths are comprised. Methods are disclosed for using link performance measures in relation to decisions regarding the routing and/or re-routing of data in a network, and in relation to determining measures indicative of expected quality of experience in respect of data traversing end-to-end paths across a network.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 28, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Detlef Nauck, Vidhyalakshmi Karthikeyan
  • Publication number: 20200128449
    Abstract: A user entity (UE) such as a smartphone is configured to connect to both Wi-Fi and a Long Term Evolution (LTE) cellular network for voice and data services. For voice, the UE supports both Voice over LTE (VoLTE) and Voice over Wi-Fi (VoWiFi). When the UE is connected to VoWiFi and roaming from a first Wi-Fi access point to a second Wi-Fi access point, the UE and Mobility Management Entity in the cellular network carry out a preparatory handover to VoLTE to prevent service loss in the event of an unsuccessful VoWiFi connection from the second Wi-Fi access point.
    Type: Application
    Filed: June 6, 2018
    Publication date: April 23, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Francisco FAUS GREGORI, Alistair GOMEZ
  • Publication number: 20200125048
    Abstract: A system of interacting sensors and operational equipment is configured to control the operational equipment in response to trigger events detected by the sensors, according to a set of management control policy sets. In response to one or more identified special trigger events, the set of management control policies is replaced with a predetermined policy prioritizing control of the behavior of the system according to a predetermined set of control parameters.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 23, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Paul Francis McKee, Michael Fisher
  • Patent number: 10623280
    Abstract: Methods and apparatus are disclosed for diagnostic testing, and in particular to methods and apparatus for obtaining diagnostic test results in respect of network-reliant applications used by one or more devices (1, 1?) in a local user network (3), the one or more user-devices (1, 1?) being operable to communicate with a digital communications access network (5, 6, 8) via a network gateway device (2) having a control module associated therewith, and being operable to communicate with remote networked devices (7, 9) involved in said network-reliant applications via the access network. Preferred embodiments relate to methods and apparatus for triggering diagnostic testing procedures and obtaining test results indicative of the actual Quality of Experience (QoE) of one or more users of the applications being run on the user-devices (1, 1?) in the user network (3).
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 14, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Alan Smith, Trevor Burbridge