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公开(公告)号：US20220337504A1
公开(公告)日：2022-10-20
申请号：US17676145
申请日：2022-02-19
发明人： Alan DAVEY , Jonathan CUMMING
摘要： A network node has a graceful restart mode in which the node: sends a graceful restart notification to one or more neighbouring nodes; attempts to re-establish an adjacency with the neighbouring node(s); receives link state data from at least one of the neighbouring node(s), the received data being sent in response to said attempt; derives pre-restart link data from the received data, the derived data identifying formerly active links, including the node, for routing traffic before the restart; routes network traffic in accordance with routing information stored in the router; detects one or more links, of the formerly active links, which are currently inactive; continues with graceful restart after said detection; determines one or more links, of the formerly active links, which are currently active; and exits the graceful restart mode in response to successful re-establishment of adjacencies with a respective neighbouring node for each of the currently active link(s).
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公开(公告)号：US11218517B2
公开(公告)日：2022-01-04
申请号：US16859187
申请日：2020-04-27
IPC分类号： H04L29/06 , H04L12/813
摘要： A media gateway and method with a media session manager function, a media processor function, and a media session state datastore function. The functions are provided by one or more instantiations which allow for independent scalability of the functions in the media gateway.
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公开(公告)号：US20210400464A1
公开(公告)日：2021-12-23
申请号：US16905526
申请日：2020-06-18
发明人： Jorge CAÑAS
摘要： The disclosures relates to a method of provisioning a subscriber profile into a subscriber data store of an IP Multimedia System (IMS) capable telecommunications network, the subscriber profile being for a subscriber which is a visiting subscriber with respect to the IMS-capable telecommunications network, the subscriber data store being for use in IP Multimedia System (IMS) call processing, the method comprising: receiving a request to allocate an IMS Access Point Name (APN); and in response to receiving the request to allocate the IMS APN, triggering a provisioning of the subscriber profile into the subscriber data store.
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公开(公告)号：US11129212B2
公开(公告)日：2021-09-21
申请号：US16784573
申请日：2020-02-07
发明人： Leland Douglas Benson , David Reekie , Benjamin Thomas Wright , Matthew Ian Ronald Williams , Richard Hewitt
摘要： In one aspect, a control plane Interworking Function (IWF-C) is used to establish a Packet Data Unit (PDU) session in a data communications network. A create session request is received, for example from a Mobile Management Entity (MME). A create session management context request is generated by the IWF-C and transmitted to a Session Management Function (SMF). A create session management context request response is received from the SMF. A create session request response is generated by the IWF-C and sent, for example to the MME. In other aspects, control plane policy interworking and user plane interworking is provided between components of 4G and 5G networks.
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公开(公告)号：US10999101B2
公开(公告)日：2021-05-04
申请号：US15970827
申请日：2018-05-03
发明人： Robert Brockbank , Alex Pollitt , Michael Curtis , Shaun Crampton
IPC分类号： H04L12/64 , H04L12/851 , H04L12/721 , H04L12/24
摘要： A controller node receives a list of a first plurality of flows programmed on a network switch. The controller node extracts a flow cookie value from a flow cookie data field of each flow in the first plurality of flows on the received list and calculates a session identifier on the basis of the extracted cookie values. At least one add flow command is transmitted from the controller node to the network switch to program a second plurality of flows on the network switch. The at least one add flow command comprises flow cookie values in the flow cookie data fields of each of the flows in the second plurality of flows which are set equal to the calculated session identifier. At least one delete flow command is transmitted from the controller node to the network switch to delete programming of the first plurality of flows on the network switch.
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公开(公告)号：US20210120072A1
公开(公告)日：2021-04-22
申请号：US16913338
申请日：2020-06-26
摘要： A computer file is processed at a first network entity (NE). At least part of the file is received from a second NE. Data relating to the received at least part of the file is transmitted to a third NE and: (i) comprises a file name of the file, the file name being transmitted to the third NE before the first NE received at least one other part of the file; and/or (ii) indicates that the first NE is processing the at least part of the file; and/or (iii) indicates that the first NE is in the process of receiving the file. Confirmation data is received from the third NE, confirming that the third NE has received the transmitted data. A file transfer acknowledgment is transmitted to the second NE on the conditions that the first NE (i) has successfully received the file and (ii) has received the confirmation data.
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公开(公告)号：US20210111926A1
公开(公告)日：2021-04-15
申请号：US16831457
申请日：2020-03-26
IPC分类号： H04L12/46
摘要： Traffic is processed in a virtualised environment comprising: (i) a physical underlay network; (ii) a first overlay network (an overlay of the physical underlay network and associated with a first set of network addresses, IP1); (iii) a second overlay network (an overlay of the first overlay network and associated with a second set of network addresses, IP2); and (iv) virtualised applications each having an execution environment and being associated with at least one network address in each of the first and second sets of network addresses, IP1 and IP2. In the execution environment of a first virtualised application: (i) traffic communicated from the first virtualised application to the first overlay network is encapsulated; and/or (ii) traffic communicated from the first overlay network to the first virtualised application is decapsulated. Tenant separation processing is performed outside the execution environments of the virtualised applications.
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公开(公告)号：US10958738B2
公开(公告)日：2021-03-23
申请号：US16275151
申请日：2019-02-13
摘要： Measures for providing timer services in a network including a cluster of nodes responsible for providing timer services to clients. At a given node in the cluster, a request to provide a timer is received from a client. Configuration of a primary replica of the requested timer on a first node in the cluster to pop after a first time has elapsed is initiated. A first timer replication message is transmitted to a second node in the cluster, the first timer replication message indicating that the second node should configure a first backup replica of the requested timer. A second timer replication message is transmitted to a third node in the cluster, the second timer replication message indicating that the third node should configure a second backup replica of the requested timer. Popping of the primary, first backup or second backup timer replicas includes initiating callback of a given client.
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公开(公告)号：US10855850B2
公开(公告)日：2020-12-01
申请号：US16440845
申请日：2019-06-13
发明人： Daniel Ian Jackson , Matthew John Russell , Josephine Julie Adkin , Matthew Williams , Andrew Munro Caldwell , David Graeme Robertson
IPC分类号： H04M15/00
摘要： Data is processed in a telecommunications network. First and second notifications are received, via an input interface, from first and second Charging Trigger Functions, CTFs, in the telecommunications network. The first and second notifications relate to network resource usage in the telecommunications network. A scalable transformation function is used to transform data derived from the first and second notifications into a first usage detail report in a first detail report format and a second usage detail report in a second, different detail report format. The first and second usage detail reports are output, via an output interface, to at least one recipient system.
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公开(公告)号：US20200344305A1
公开(公告)日：2020-10-29
申请号：US16850874
申请日：2020-04-16
发明人： Andrew LEE , David HOTHAM , Joe POWELL , Philip DAVIES , Michael DUPPRE , Jamie PARSONS , Steve ORBELL
摘要： Certain aspects provide a method of commissioning a virtualized network function (VNF), including: at a commissioning virtual machine instantiated in a virtualized environment of a customer network, configuring a remote access connection facility for accessing the commissioning virtual machine remotely from outside of the customer network, wherein the commissioning virtual machine has access to a virtual infrastructure manager (VIM) component of the virtualized environment; causing, via the remote access connection facility, configuration of a VNF manager component within the commissioning virtual machine; and causing, via the remote access connection facility, the configured VNF manager component to instruct the VIM component to instantiate one or more virtual machines in the virtualized environment, the one or more virtual machines being operable to perform at least a part of the VNF.
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