Patents Assigned to British Telecommunications
  • Patent number: 10728843
    Abstract: This disclosure provides a base station, and a method of operating a base station, in a cellular telecommunications network, the base station having normal, compensation and energy saving modes of operation.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Richard Mackenzie, Michael Fitch
  • Patent number: 10728816
    Abstract: A VoWiFi service monitor monitors the logical data path to the ePDG of a MNO as an indication of whether VoWiFi service is possible for subscribers of the MNO network. Due to the standard configuration of UEs in preferring WLAN connectivity over LTE cellular connectivity, if the VoWiFi service is unavailable the UEs will not automatically switch to VoLTE while a WLAN connection is available between the UE and a hub. When a change in the status of an ePDG is detected, the VoWiFi service monitor informs any connected hubs. The hubs receive notifications from the VoWiFi service monitor and for each notification determine whether the ePDG status change affects one or more of the VoWiFi capable UEs connected to the hub. If at least one such device is affected by the change, the hub notifies the affected UE with instructions to handover from VoWiFi to VoLTE.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Ruth Brown, Alistair Gomez
  • Patent number: 10728714
    Abstract: A base station for a mobile communications network is disclosed, in which the base station includes a plurality of transmitters, in which each transmitter is configured to provide transmit radio signals to a plurality of mobile terminals; and a plurality of receivers, in which each receiver is configured to detect receive radio signals from the plurality of mobile terminals. The base station also includes a processor configured to interrogate each of the plurality of the mobile terminals for an indication of signal quality of a signal received by the mobile terminal; and to assign each of the plurality of the mobile terminals to one of two groups based on the received indications of signal quality. The mobile terminals assigned to the first group are those that indicate relatively low signal quality and the mobile terminals assigned to the second group are those that indicate relatively high signal quality.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Zaid Al-Daher, Richard Mackenzie, Michael Fitch
  • Patent number: 10728844
    Abstract: This disclosure provides a base station, and a method of operating a base station, in a cellular telecommunications network, the method including a first base station determining to switch to energy saving mode; and the first base station sending a first message to a second base station, the first message including compensation data relating to a third base station that the first base station is acting in compensation mode for.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Richard Mackenzie, Michael Fitch
  • Patent number: 10728157
    Abstract: The present invention provides a method comprising: receiving a plurality of queries, each query specifying one or more quality-of-service (QoS) requirements for the transmission of a data flow in a network; determining a query prototype, the query prototype comprising at least one QoS component value based on the one or more QoS requirements; obtaining a plurality of items of route data, wherein each item of route data is associated with a corresponding route through the network and indicates a QoS component of the corresponding route; comparing the route data with the query prototype to identify routes which match the query prototype; and in the event that a selected number of routes match the query prototype, responding to a further query by transmitting a query response comprising a new QoS model based on the matching query prototype.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 28, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Vidhyalakshmi Karthikeyan, Detlef Nauck
  • Patent number: 10728841
    Abstract: A mobile device having a processor, a memory and a wireless network interface, the processor executing an operating system including a network communication library for providing networking services via the wireless network interface and being further arranged to: receive capability information associated with each of plurality of wireless network access points accessible to the mobile device; identify, for a set of networked applications in execution on the mobile device, one or more applications having associated a wireless network capability requirement; and select an access point from the plurality of access points to provide network communication for the mobile device, the access point being selected based on the identified one or more applications and the received capability information, wherein network communication for applications executed by the mobile device having associated a wireless network capability requirement that is incompatible with a network capability of the selected access point are pr
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: July 28, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, Ali Sajjad
  • Publication number: 20200236603
    Abstract: This disclosure relates to a method of operating a management node in a cellular telecommunications network, the cellular telecommunications network further including a User Equipment (UE), and a first and second base station, wherein the UE is connected to the first base station by a first connection and to the second base station by a second connection, and the first and second connection relate to a first and second subscription respectively, the method including detecting a first home network identifier of the first connection; detecting a first network operator identifier of the first base station; determining that a first home network identifier of the first connection is different to the first network operator identifier of the first base station; determining a preferred partner network associated with the first home network identifier; and initiating a transfer of the first connection to the preferred partner network.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 23, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Maria Cuevas Ramirez, Ruth Brown
  • Publication number: 20200236595
    Abstract: This disclosure invention relates to a method of operating a network node in a cellular telecommunications network, wherein the cellular telecommunications network further includes a first base station and a first User Equipment (UE), and the first UE is connected to the first base station by a first and second connection having resources associated with a first and second subscription respectively, the method including determining that the first connection and second connection relate to the first and second subscription respectively; determining that the first connection and second connection relate to the first UE; monitoring a first resource usage of one or both of the first and second connections with the first UE; and initiating a handover of one or both of the first and second connections based on the first resource usage.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 23, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Maria Cuevas Ramirez, Ruth Brown
  • Patent number: 10719346
    Abstract: A computer implemented method of providing whole disk encryption for a virtualized computer system including providing a software component executing in a first virtual machine for instantiation in a first hypervisor, the software component invoking a second hypervisor within the first virtual machine for instantiating a disk image of the virtualized computer system as a second virtual machine, and the software component being configured to install a software agent in the second virtual machine, the software agent being adapted to: a) encrypt the instantiated disk image; b) encrypt data written, by the second virtual machine, to the instantiated disk image at a runtime of the second virtual machine; and c) decrypt data read, by the second virtual machine, from the instantiated disk image at a runtime of the second virtual machine, wherein the software component is configured to migrate the second virtual machine at a runtime of the second virtual machine to the first hypervisor so as to provide a wholly encry
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 21, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, Theo Dimitrakos
  • Publication number: 20200220892
    Abstract: A computer implemented method of identifying anomalous behavior of a computer system in a set of intercommunicating computer systems, each computer system in the set being uniquely identifiable, the method including monitoring communication between computer systems in the set for a predetermined baseline time period to generate a baseline vector representation of each of the systems; monitoring communication between computer systems in the set for a subsequent predetermined time period to generate a subsequent vector representation of each of the systems; comparing baseline and subsequent vector representations corresponding to a target computer system using a vector similarity function to identify anomalous behavior of the target system in the subsequent time period compared to the baseline time period, wherein a vector representation of the target system for a time period is generated based on a deterministic walk of a graph representation of communications between the computer systems in which nodes of the
    Type: Application
    Filed: January 9, 2020
    Publication date: July 9, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Michael GIBSON
  • Publication number: 20200220714
    Abstract: A computer implemented method of protecting data in a message for communication from a sender to a receiver, the sender and receiver sharing a secret, the method including splitting the message into a plurality of ordered message blocks, the order being a proper order such that an aggregation of the blocks in the proper order constitutes the message; generating a hash value for each message block, each hash value being generated on the basis of at least a content of the block and the secret; generating, for each block, an encoded indication of a position of the block in the proper order of blocks, the encoding being reversible and based on at least the hash value for the block and a position of the block in the proper order; communicating the blocks to the receiver in an order different to the proper order so as to obfuscate the message; and communicating the encoded indications to the receiver such that the blocks can be reassembled by the receiver in the proper order on the basis of the shared secret.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 9, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, Fabio Giubilo
  • Publication number: 20200221352
    Abstract: A user entity (UE) such as a smartphone is configured to connect to both WiFi 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 WiFi (VoWiFi). When the UE is connected to VoWiFi and roaming from a first WiFi access point to a second WiFi 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 WiFi access point.
    Type: Application
    Filed: June 6, 2018
    Publication date: July 9, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Francisco FAUS GREGORI, Alistair GOMEZ
  • Publication number: 20200210782
    Abstract: A method of anomaly detection for network traffic communicated by devices via a computer network, the method including clustering a set of time series, each time series including a plurality of time windows of data corresponding to network communication characteristics for a device; training an autoencoder for each cluster based on time series in the cluster; generating a set of reconstruction errors for each autoencoder based on testing the autoencoder with data from time windows of at least a subset of the time series; generating a probabilistic model of reconstruction errors for each autoencoder; and generating an aggregation of the probabilistic models for, in use, detecting reconstruction errors for a time series of data corresponding to network communication characteristics for a device as anomalous.
    Type: Application
    Filed: June 8, 2018
    Publication date: July 2, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Maximilien SERVAJEAN, Yipeng CHENG
  • Publication number: 20200209106
    Abstract: An optical fiber including a plurality of embedded optical reflectors distributed periodically along the length of the fiber and a method of quantifying loss associated with an optical connector that is connected to optical fiber comprising a plurality of embedded optical reflectors distributed periodically along the length of the fiber. The method includes inserting an optical signal into the fiber through the optical connector; measuring a component of the optical signal reflected by at least one of the plurality of embedded optical reflectors, in which the component is received through the optical connector; calculating the difference in power level between the inserted and reflected signals; and quantifying, based on the calculated power level difference and the reflectivity of the embedded optical reflector, the loss associated with the optical connector.
    Type: Application
    Filed: July 18, 2018
    Publication date: July 2, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Neil PARKIN, Malcolm CAMPBELL
  • Patent number: 10701205
    Abstract: A method of classifying unwanted robot calls on the basis of the duration of a plurality of calls made from a single telephone number. If analysis of the distribution of call duration indicates that the calls are robot calls then the single telephone number is flagged such that subsequent calls from that number are not connected to the called party.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: June 30, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventor: Robert Claxton
  • Patent number: 10700962
    Abstract: A method of operating a communications network, in which a primary learning process periodically determines which routes communications sessions are assigned to in order that the session can be carried with a requested QoS. A secondary learning process is used, in between instances of the primary learning process to check that the QoS constraints are still satisfied. If not, action is taken, for example using a load balancer to transmit the session over one or more further network routes.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: June 30, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Vidhyalakshmi Karthikeyan, Detlef Nauck
  • Publication number: 20200205000
    Abstract: A computer implemented method of a first network access point to provide network access for a mobile device, the mobile device associated with a second network 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, wherein the mobile device has associated a quantity of cryptocurrency by a digitally signed record in the blockchain, the method including receiving a request from the mobile device to access the network; generating a first new record for storage in the blockchain to transfer a predetermined quantity of cryptocurrency associated with the requester to be associated with the first access point, the first new record being validated by the miner components; responsive to the validation of the first new record, notifying the second access point of the request of the mobile device to access the network; responsive to a validation of a second new record in the blockchain, the
    Type: Application
    Filed: June 8, 2018
    Publication date: June 25, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Joshua DANIEL
  • Publication number: 20200204999
    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, wherein the network access point provides access to a local network inacces
    Type: Application
    Filed: June 8, 2018
    Publication date: June 25, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Joshua DANIEL, Paul KEARNEY
  • Patent number: 10693555
    Abstract: An optical network node capable of being powered, comprising—a reflector arranged to reflect an optical signal, and—a switch arranged to direct the optical signal to the reflector in dependence on whether the optical network node is powered.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 23, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Neil Parkin, Anas Mohsin
  • Publication number: 20200196172
    Abstract: Network addresses which are frequently accessed by user terminals are monitored by a network access point to which the terminals are connected, and the network access point then makes attempts to access the network addresses from time to time and makes reports to a network management system of any such network addresses that fail to respond. This increases the likelihood of detection and reporting of failures of active addresses before the user has need of them.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 18, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Dalia Abouelmaati