Patents Assigned to British Telecommunications public limited company
  • Publication number: 20200084710
    Abstract: The disclosure includes a method in a cellular communications network, and a User Equipment, basestation and network management entity for implementing the method, the method including a first basestation transmitting a first message including a Closed Subscriber Group (CSG) identifier; determining, for a User Equipment (UE) whether the CSG identifier is present on a first allowed CSG list; determining the allowed service level for the UE, the allowed service level indicating one of at least a first and second allowed service level; and connecting the UE to the first basestation if the CSG identifier is present on the first allowed CSG list, wherein the Quality of Service (QoS) for the UE is dependent on the allowed service level.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 12, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Michael FITCH, Richard MACKENZIE
  • Publication number: 20200082084
    Abstract: A computer implemented method for decrypting an encrypted data store at a target computer system, the data store being encrypted by a ransomware algorithm using a searchable encryption algorithm, the method including determining an encryption algorithm used by the ransomware algorithm; determining seed parameters used by the encryption algorithm to generate an encryption key; generating the encryption key using the seed parameters; and decrypting the encrypted data store.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 12, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: George Kallos, Fadi Ali El-Moussa
  • Publication number: 20200084080
    Abstract: A digital subscriber line transceiver for transmitting data over a twisted metallic pair using an orthogonal frequency division multiplex technique and employing a time division duplex mode of operation is operable to adopt a plurality of different framing structures including a first framing structure having a frame duration equal to a first predetermined frame duration period and including a downstream set of symbols and an upstream set of symbols, with gap after each set of symbols summing to a total gap duration of one symbol duration. The different framing structures further include a second framing structure having a frame duration equal to the first predetermined frame duration period and including first and second downstream sets of symbols, first and second upstream sets of symbols and gaps after each of these sets of symbols summing to a total gap duration of an integer number of one or more symbol durations.
    Type: Application
    Filed: March 9, 2018
    Publication date: March 12, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Ian Cooper, Ian Horsley, Leslie Humphrey
  • Publication number: 20200084236
    Abstract: A computer implemented method of identifying a ransomware algorithm, the ransomware algorithm having associated a predetermined responsive action for mitigating the effect of the ransomware algorithm in use, the method including exposing a target computer system to the ransomware algorithm, the target computer system containing a predetermined set of sample data stored therein that is encrypted by the ransomware algorithm using a searchable encryption algorithm; intercepting an index of the searchable encryption algorithm; training an autoencoder based on the index to provide a trained autoencoder adapted to identify the ransomware algorithm based on the index.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 12, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: George Kallos, Fadi Ali El-Moussa
  • Publication number: 20200073354
    Abstract: In a managed system controlled by multiple policy managers, conflicts between the policies of the managers are resolved by generating a satisfaction measure to be transmitted to policy managers together with sensor data, indicative of how closely the sensor data satisfies the policy which caused it. This satisfaction measure is used to determine whether actuators controlled by the other policy managers should be triggered by the sensor data. This allows policies to co-operate to prevent conflict between the conflicting requirements of different policies.
    Type: Application
    Filed: July 30, 2019
    Publication date: March 5, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Nicholas John Davies, Paul Francis McKee
  • Publication number: 20200065692
    Abstract: A defuzzification apparatus for defuzzification of fuzzy data representative of one or more entities or events, the fuzzy data specifying for each of the one or more entities or events, a membership level, the defuzzification apparatus including one or more processors configured to generate, using the fuzzy data, a set of computer executable instructions representative of a function of the fuzzy data, and execute, using a predetermined fuzzy membership value, the set of computer executable instructions to determine crisp data. The defuzzification apparatus may be coupled to crisp data processors configured to receive the crisp data and perform crisp data processing on the received crisp data so as to generate further crisp data. The crisp data processor may be coupled to a fuzzification apparatus including one or more processors configured to process the received further crisp data to generate therefrom further fuzzy data.
    Type: Application
    Filed: December 5, 2017
    Publication date: February 27, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Benham Azvine, Martin Trevor
  • Patent number: 10575042
    Abstract: Playing of first and second content streams delivered to respective first and second receiving devices is achieved following a seek command to one of the devices, by a synchronization controller which receives information identifying the segment in the first stream in which the start point is located, and the duration of time between the start point and the beginning of the next segment, and transmits a command to the second receiving device identifying a segment in a second stream, at which to resume play, and a time at which to start displaying, allowing the display controlled by the second receiving device to be resynchronized with the display controlled by the first receiving device after operation of the seek command on the first device.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 25, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Jonathan Rennison, Martin Trimby, Andrew Gower
  • Patent number: 10575239
    Abstract: In a WLAN with many concurrent users, a wireless access point is configured with information relating to a set of priority devices and when network utilisation exceeds a particular threshold, the wireless access point is arranged to identify a priority device connected to the WLAN, determine a policy for reconfiguring the WLAN to enable better performance to the priority device, and offer the improvements to the priority device. The changes to the WLAN are only applied if a user of the priority device opts to apply the changes thereby changing the WLAN performance in accordance with user requirements.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 25, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventor: Richard Evenden
  • Patent number: 10574381
    Abstract: A method of allocating spectrum to a signal in a wavelength division multiplex network including a plurality of nodes, wherein the spectrum comprises a grid divided into a plurality of slots, including allocating to the signal a slot immediately adjacent to a second slot occupied by a second signal, wherein the signal and the second signal are both addressed to the same destination node, and wherein the slots allocated to the signal and the second signal form a spectrum block.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 25, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Paul Wright, Andrew Lord, Michael Parker
  • Patent number: 10574292
    Abstract: A method of transmitting, using a discrete multi-tone technique, data between a first and a second transceiver over a plurality of metallic pairs connected between the first and second transceivers, providing a plurality of transmission channels, is disclosed.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 25, 2020
    Assignee: British Telecommunications Public Limited Company
    Inventors: Anas Al Rawi, Christopher Botham
  • Patent number: 10574743
    Abstract: As data processing requirements of individual client systems A to K change over time, they are allocated service from physical datacentres X, Y, Z according to the existing capabilities of the data centres requirements of the client systems, thus transferring client systems between cells controlled by individual data centres. This avoids the complex process of adapting the individual physical datacentres' capabilities to the changing requirements of the client systems to which they were originally allocated: thus the capabilities, and not the mappings, are maintained and the mappings, not the capabilities, are dynamic, so as to optimise the allocation of client systems to cells. It also minimises the number of clients having to work to more than one datacentre, which leads to delays in processing as the datacentres need to communicate with each other.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 25, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Okung Ntofon, Gilbert Owusu, Siddhartha Shakya
  • Patent number: 10574552
    Abstract: The servers in a data network are monitored (16) and classified (290) according to the data flows to and from the servers, to identify servers with low usage, and programming instructions and data relating to those servers are retrieved and stored (32, 17) so that they may subsequently be retrieved (18) to replicate the server to which they relate.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 25, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Kashaf Khan, Steve Gibbs, Detlef Nauck
  • Patent number: 10567937
    Abstract: An application deployment manager 8 associated with an associated Mobile Edge Computing server receives a notification (step 222) of a newly-attached terminal, and queries a database 60 (step 223) to identify any computing applications the terminal is associated with, and interrogates an application platform 12 and an update record 72 to determine whether the current version of each required service is currently hosted on the platform 12 (steps 225, 250). The application deployment manager 8 then retrieves any programme data not already hosted on the application management system (step 227) for installation ready for use by the terminal 2.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: February 18, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Maria Cuevas Ramirez, Jonathan Hart
  • Publication number: 20200053104
    Abstract: A method for identifying malicious encrypted network traffic associated with a malware software component communicating via a network, the method including, for the malware, a portion of network traffic including a plurality of contiguous bytes occurring at a predefined offset in a network communication of the malware; extracting the defined portion of network traffic for each of a plurality of disparate encrypted network connections for the malware; training an autoencoder based on each extracted portion of network traffic, wherein the autoencoder includes: a set of input units each for representing information from a byte of an extracted portion; output units each for storing an output of the autoencoder; and a set of hidden units smaller in number than the set of input units and each interconnecting all input and all output units with weighted interconnections, such that the autoencoder is trainable to provide an approximated reconstruction of values of the input units at the output units; selecting a set
    Type: Application
    Filed: March 26, 2018
    Publication date: February 13, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, George Kallos
  • Publication number: 20200053082
    Abstract: A computer implemented method for access control for a consumer accessing a restricted resource in a network connected computer system, the method: including receiving a continuous sequence of data records relating to use, by the consumer, of the restricted resource, the resource being accessed by the consumer over an access network; continuously comparing the data records with an access control policy for the restricted resource; in response to a determination that the behavior is non-compliant with respect to the policy, generating and communicating a shared secret to the consumer, the shared secret being communicated via a communications channel other than the access network; receiving a response to a challenge from the user via the access network; and notifying the computer system that access to the resource by the consumer should be precluded based on a comparison of the response to the challenge and the shared-secret.
    Type: Application
    Filed: March 26, 2018
    Publication date: February 13, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Joshua Daniel, Gery Ducatel
  • Publication number: 20200050760
    Abstract: A method for detecting a malware file in encrypted form including receiving multiple versions of the malware file, each version encrypted using a different initialization vector; training an autoencoder based on each version of the malware file, wherein the autoencoder includes: a set of input units each for representing information from a byte of malware file; output units each for storing an output of the autoencoder; and a set of hidden units smaller in number than the set of input units and each interconnecting all input and all output units with weighted interconnections, such that the autoencoder is trainable to provide an approximated reconstruction of values of the input units at the output units; selecting a set of one or more offsets in the malware file in encrypted form as candidate locations for storage of an initialization vector for encryption of the malware file, the selection being based on weights of interconnections in the autoencoder; and identifying the malware file based on an identificat
    Type: Application
    Filed: March 26, 2018
    Publication date: February 13, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventors: Fadi El-Moussa, George Kallos
  • Publication number: 20200044734
    Abstract: An optical network including a processing device configured to receive from photodetectors, information indicative of a time period between loss of light received through a first optical fiber and loss of light received through a second optical fiber. The first optical fiber has a first latency and the second optical fiber has a second latency. The first optical fiber and the second optical fiber extend along a common path through the optical network: a first end of the path being defined by the photodetectors and a second end of the path being defined by a second location in the optical network. The processor is configured to calculate, based on the timing information and a difference in latency between the first optical fiber and the second optical fiber, a distance along the common path from the photodetectors to an event resulting in the losses of light.
    Type: Application
    Filed: January 29, 2018
    Publication date: February 6, 2020
    Applicant: British Telecommunications Public Limited Company
    Inventor: Neil Parkin
  • Patent number: 10554578
    Abstract: Method and systems for managing QoS models for traffic flows in a network are described. In particular, the method includes storing the QoS models and analyzing at least one of the QoS models to determine whether the QoS model satisfies a suitability test. One or more QoS models are then selected based on the analysis and these selected models are offered to a client for use with a traffic flow in the network. In one embodiment, the method may be implemented based on a query from a client requesting reservation of network resources for a traffic flow. The analysis may be based on a characteristic of the or each QoS model, of the client, of a query received from the client requesting reservation of network resources for the traffic flow or of the network or an operator of the network.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 4, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Vidhyalakshmi Karthikeyan, Detlef Nauck
  • Patent number: 10554300
    Abstract: The present invention provides a method of indirectly determining the optical signal-noise ratio of an optical fibre communications link. In a test environment, the relationship between OSNR and pre-FEC BER (forward error-corrected bit error rate) is determined for a particular type of optical transponder. When a transponder of that type is connected to an optical communications link then the pre-FEC BER can be measured and the OSNR inferred from the pre-determined OSNR-BER relationship. The OSNR value can then be used to select a transponder modulation format or other transmission parameters.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: February 4, 2020
    Assignee: BRITISH TELECOMMUNICATIONS public limited company
    Inventors: Kevin Smith, Yu Zhou
  • Patent number: 10554719
    Abstract: Methods, apparatus and systems are disclosed for managing streamed communication (such as video, audio, or audio-visual communication) between client devices and remote devices via a digital data communication network in situations where the data communication network comprises one or more routers operable to receive streamed data from one or more client devices and/or from one or more other routers, and to forward such streamed data to one or more remote devices and/or to one or more other routers such as to enable the client device and potentially-varying subsets of the one or more remote devices to participate in a communication session.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 4, 2020
    Assignee: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
    Inventors: Timothy Stevens, Ian Kegel, Andrew Wills