Patents by Inventor Riccardo Martinotti
Riccardo Martinotti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10218568Abstract: A method of provisioning a control plane in a multi-technology network in response to a first connection request received from a client. The method comprises receiving the first connection request at a control plane dispatcher; analysing said first connection request and selecting a control plane based on results of the analysis and characteristics of control planes at the disposal of the dispatcher in the multi-technology network. The control plane dispatcher selects on a per connection request basis what is the best technology for that request and its requirements, taking also into account the status of the network resources.Type: GrantFiled: November 12, 2013Date of Patent: February 26, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Raoul Fiorone, Daniele Ceccarelli, Andrea Corti, Riccardo Martinotti
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Patent number: 9838217Abstract: A Common Public Radio Interface (CPRI) link involves using a protocol stack having a CPRI layer and an emulation layer to emulate a point to point link, to enable the CPRI link to operate over a packet switched network. The emulation layer can be a pseudowire emulation which encapsulates multiple CPRI frames in a packet with overhead. A multiplexing layer such as Internet Protocol (IP) or Multiprotocol Label Switching (MPLS) can be used, for sending the packet over an Ethernet network. The usual need for a point to point infrastructure for the CPRI link can be avoided and the CPRI link can be implemented over more complex but usually cheaper packet networks, thus reducing costs or enabling more widespread application over existing packet networks. This applies whether the packet network is dedicated to the CPRI link, or shared with other packets. It can be useful for distributed radio base stations.Type: GrantFiled: July 23, 2012Date of Patent: December 5, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Riccardo Martinotti, Giulio Bottari, Diego Caviglia
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Patent number: 9559974Abstract: Aspects of the present disclosure relate to a method and a device for creating a data packet with discard eligible information and to a method and device for receiving a data packet with discard eligible information. Specifically, one aspect of the present disclosure provides a method for creating a data packet, containing a data payload and at least one label determining onward routing for the data packet, for onward transmission in a data communication system, a machine readable medium for implementing the method, and a corresponding device. In a first step a discard eligibility associated with the data packet is determined. In a second step, discard eligible information is encoded in a label determining onward routing for the data packet. In a third step an outgoing data packet including the label is generated.Type: GrantFiled: April 18, 2011Date of Patent: January 31, 2017Inventors: Riccardo Martinotti, Raoul Fiorone, Francesco Fondelli
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Publication number: 20160294615Abstract: A method of provisioning a control plane in a multi-technology network in response to a first connection request received from a client. The method comprises receiving the first connection request at a control plane dispatcher; analysing said first connection request and selecting a control plane based on results of the analysis and characteristics of control planes at the disposal of the dispatcher in the multi-technology network. The control plane dispatcher selects on a per connection request basis what is the best technology for that request and its requirements, taking also into account the status of the network resources.Type: ApplicationFiled: November 12, 2013Publication date: October 6, 2016Inventors: Raoul Fiorone, Daniele Ceccarelli, Andrea Corti, Riccardo Martinotti
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Patent number: 9462358Abstract: An optical network is configured to provide an optical reroute over a backup path (2139) during a failure in a signal path (2133). The network comprises a first node (B). A second node (C) is coupled to receive a signal from the first node (B) via the signal path (2133), and a backup signal via the backup path (2139). The network is adapted to transmit a signal and a corresponding backup signal from the first node to the second node even when there is no failure in the signal path (2133), wherein the backup signal is blocked at the second node (C) when there is no failure in the signal path (2133). Embodiments of the invention utilize the broadcast and blocking functionalities of a wavelength selective switch (WSS) device. Such WSS devices enable, in the case of a failure of a link, the fast switchover of optical traffic onto local detours within a reduced time.Type: GrantFiled: October 12, 2011Date of Patent: October 4, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Diego Caviglia, Giulio Bottari, Riccardo Martinotti
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Patent number: 9426062Abstract: The invention relates to a method of fault monitoring in a fault monitoring entity of a network node of a network having at least a first connection-oriented network layer, having first protection measures associated therewith, and a second connection-oriented network layer, having second protection measures associated therewith. In a first step the service condition status of the first network layer is monitored using the first protection measures. In a second step the second network layer protection measures are determined for onward transmission within the second network layer depending on the service condition status of the first network layer. Since the network node is aware of the monitored status condition of both the first and second layers the protection mechanisms for the first network layer and the second network layer can be co-ordinated and the second network layer protection measure for onward transmission may be determined for optimum network fault protection operation.Type: GrantFiled: January 15, 2010Date of Patent: August 23, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Raoul Fiorone, Riccardo Martinotti, Andrea Corti
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Patent number: 9391874Abstract: Method of re-routing traffic in a communications network (1) in the event of a fault (3) on a path across the network, the method comprising, determining whether a first node (4), located between the fault and a network ingress node (6), is capable of switching traffic to an alternative path which avoids the fault, and if the first node is determined to be not so capable, then determining whether a second node (8), located upstream of the first node, is capable of switching traffic to an alternative path which avoids the fault.Type: GrantFiled: July 8, 2008Date of Patent: July 12, 2016Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Andrea Corti, Raoul Fiorone, Riccardo Martinotti
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Patent number: 9203732Abstract: A connection-oriented network (5) has a plurality of connections terminated at a first node (N6). A recovery group (A) is configured at the first node (N6) comprising at least two of the plurality of connections (LSP1-6, LSP2-6, LSP3-6, LSP4-6). Fault detection is performed over each of the connections in the recovery group (A) and the node determines if at least one recovery group fault condition is met, based on the results of the fault detections performed over the connections in the recovery-group (A). When the at least one recovery group fault condition is met, the node causes traffic on the plurality of connections in the recovery group (A) to be transferred to backup paths. When the at least one recovery group fault condition is not met, and a fault has been detected on a connection in the recovery group (A), the node causes traffic to be transferred from that connection to a backup path.Type: GrantFiled: October 1, 2009Date of Patent: December 1, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Raoul Fiorone, Andrea Corti, Riccardo Martinotti
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Publication number: 20150249549Abstract: A Common Public Radio Interface (CPRI) link involves using a protocol stack having a CPRI layer and an emulation layer to emulate a point to point link, to enable the CPRI link to operate over a packet switched network. The emulation layer can be a pseudowire emulation which encapsulates multiple CPRI frames in a packet with overhead. A multiplexing layer such as Internet Protocol (IP) or Multiprotocol Label Switching (MPLS) can be used, for sending the packet over an Ethernet network. The usual need for a point to point infrastructure for the CPRI link can be avoided and the CPRI link can be implemented over more complex but usually cheaper packet networks, thus reducing costs or enabling more widespread application over existing packet networks. This applies whether the packet network is dedicated to the CPRI link, or shared with other packets. It can be useful for distributed radio base stations.Type: ApplicationFiled: July 23, 2012Publication date: September 3, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Riccardo Martinotti, Diego Caviglia, Giulio Bottari
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Publication number: 20140294383Abstract: An optical network is configured to provide an optical reroute over a backup path (2139) during a failure in a signal path (2133). The network comprises a first node (B). A second node (C) is coupled to receive a signal from the first node (B) via the signal path (2133), and a backup signal via the backup path (2139). The network is adapted to transmit a signal and a corresponding backup signal from the first node to the second node even when there is no failure in the signal path (2133), wherein the backup signal is blocked at the second node (C) when there is no failure in the signal path (2133). Embodiments of the invention utilize the broadcast and blocking functionalities of a wavelength selective switch (WSS) device. Such WSS devices enable, in the case of a failure of a link, the fast switchover of optical traffic onto local detours within a reduced time.Type: ApplicationFiled: October 12, 2011Publication date: October 2, 2014Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Diego Caviglia, Giulio Bottari, Riccardo Martinotti
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Patent number: 8787150Abstract: A connection oriented communications network has a plurality of nodes including a plurality of edge nodes. The network is arranged to define a primary tunnel connecting a primary one of the edge nodes to another edge node and a secondary tunnel connecting a secondary one of the edge nodes to another edge node. The network is arranged to enable switching of traffic from the primary tunnel to the secondary tunnel in the event of detection of a failure in the primary tunnel.Type: GrantFiled: October 9, 2006Date of Patent: July 22, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Raoul Fiorone, Riccardo Martinotti, Andrea Corti
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Patent number: 8750111Abstract: A method and a transport scheme for packets of traffic over a logical link made up of the aggregation of several physical links (16) connecting a transmitting side to a receiving side in which flows of incoming packets are sent to a scheduler/shaper (12) which selects therefrom packets for creating a global flow of packets falling within the bandwidth offered by the logical link on the basis of the bandwidth capability offered by the logical link. A distributor (13) distributes the global flow over the plurality of physical links (16) making up the logical link, oversees the physical links and sends to the scheduler/shaper signalling of a bandwidth decrease caused by failures of one or more physical links. The scheduler/shaper (12) is arranged to allow automatically for the logical link bandwidth variations while selecting the packets from the various incoming queues depending on the associated service class so as to cause the global flow to fall within the aggregated logical link bandwidth.Type: GrantFiled: November 23, 2006Date of Patent: June 10, 2014Assignee: Ericsson ABInventors: Riccardo Martinotti, Raoul Fiorone, Andrea Corti
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Patent number: 8730815Abstract: A node (110) for an MPLS telecommunications network has interfaces (100) for OAM information exchange relating to a path for data traffic, between first and second other nodes each operating according to different OAM state machines for OAM information exchange. An OAM state machine mapper (120) maps the states of either of the different OAM state machines of the first and second other nodes into states recognized by the other of the different OAM state machines. OAM information exchange is according to either the first or the second OAM state machine and according to states mapped from the other of the OAM state machines, to support the path for data traffic through the node. By such mapping of the different states OAM information can be exchanged across corresponding boundaries and so paths no longer need to be terminated at the boundary to enable end to end operations.Type: GrantFiled: April 27, 2011Date of Patent: May 20, 2014Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Antonella Sanguineti, Riccardo Martinotti, Raoul Fiorone
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Publication number: 20140043976Abstract: Aspects of the present disclosure relates to a method and a device for creating a data packet with discard eligible information and to a method and device for receiving a data packet with discard eligible information. Specifically, one aspect of the present disclosure provides a method for creating a data packet, containing a data payload and at least one label determining onward routing for the data packet, for onward transmission in a data communication system, a machine readable medium for implementing the method, and a corresponding device. In a first step a discard eligibility associated with the data packet is determined. In a second step, discard eligible information is encoded in a label determining onward routing for the data packet. In a third step an outgoing data packet including the label is generated.Type: ApplicationFiled: April 18, 2011Publication date: February 13, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Riccardo Martinotti, Raoul Fiorone, Francesco Fondelli
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Patent number: 8619632Abstract: A node for a communications network, the node comprising a plurality of ports and a processor. The processor configured to determine that a first status change signal, indicative of a topology status change in the network, has been received, and the processor configured to decide from at least an origin of the first status change signal to output a second status change signal to only a subset of possible destination nodes.Type: GrantFiled: December 11, 2008Date of Patent: December 31, 2013Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventor: Riccardo Martinotti
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Publication number: 20130021918Abstract: The invention relates to a method of fault monitoring in a fault monitoring entity of a network node of a network having at least a first connection-oriented network layer, having first protection measures associated therewith, and a second connection-oriented network layer, having second protection measures associated therewith. In a first step the service condition status of the first network layer is monitored using the first protection measures. In a second step the second network layer protection measures are determined for onward transmission within the second network layer depending on the service condition status of the first network layer. Since the network node is aware of the monitored status condition of both the first and second layers the protection mechanisms for the first network layer and the second network layer can be co-ordinated and the second network layer protection measure for onward transmission may be determined for optimum network fault protection operation.Type: ApplicationFiled: January 15, 2010Publication date: January 24, 2013Inventors: Raoul Fiorone, Riccardo Martinotti, Andrea Corti
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Publication number: 20120287818Abstract: A multipoint-to-multipoint service is provided between a set of edge nodes of a communications network. The network comprises at least two sub-networks and an intermediate node at a boundary between sub-networks. For each pair of edge nodes comprising an edge node in a first of the sub-networks and an edge node in a second of the sub-networks, a multi-segment pseudowire connection is configured between the pair of edge nodes. The pseudowire connection passing via at least one intermediate node. At the intermediate node forwarding data is configured which specifies a forwarding relationship between pseudowire segments corresponding to the multi-segment pseudowire connections. A topology of Label Switched Paths carry the multi-segment pseudowires. Edge nodes within a sub-network can be connected with a mesh topology or a hub-and-spoke topology.Type: ApplicationFiled: October 20, 2009Publication date: November 15, 2012Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Andrea Corti, Raoul Fiorone, Riccardo Martinotti
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Patent number: 8264977Abstract: A method of deriving an indicator of the signal quality in an in-service packet-based network at least having means to detect errors in packets and means to determine the overall amount of network traffic received. The method comprises the steps of: obtaining a value of the number of packets received having errors therein; obtaining a value of the overall amount of the network traffic received; calculating the indicator of signal quality (eBER) using the ratio of the number of packets received having errors therein to the overall amount of network traffic received.Type: GrantFiled: October 6, 2006Date of Patent: September 11, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Antonella Sanguineti, Riccardo Martinotti
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Publication number: 20120188867Abstract: A connection-oriented network (5) has a plurality of connections terminated at a first node (N6). A recovery group (A) is configured at the first node (N6) comprising at least two of the plurality of connections (LSP1-6, LSP2-6, LSP3-6, LSP4-6). Fault detection is performed over each of the connections in the recovery group (A) and the node determines if at least one recovery group fault condition is met, based on the results of the fault detections performed over the connections in the recovery-group (A). When the at least one recovery group fault condition is met, the node causes traffic on the plurality of connections in the recovery group (A) to be transferred to backup paths. When the at least one recovery group fault condition is not met, and a fault has been detected on a connection in the recovery group (A), the node causes traffic to be transferred from that connection to a backup path.Type: ApplicationFiled: October 1, 2009Publication date: July 26, 2012Inventors: Raoul Fiorone, Andrea Corti, Riccardo Martinotti
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Publication number: 20120155283Abstract: A node (110) for an MPLS telecommunications network has interfaces (100) for OAM information exchange relating to a path for data traffic, between first and second other nodes each operating according to different OAM state machines for OAM information exchange. An OAM state machine mapper (120) maps the states of either of the different OAM state machines of the first and second other nodes into states recognised by the other of the different OAM state machines. OAM information exchange is according to either the first or the second OAM state machine and according to states mapped from the other of the OAM state machines, to support the path for data traffic through the node. By such mapping of the different states OAM information can be exchanged across corresponding boundaries and so paths no longer need to be terminated at the boundary to enable end to end operations.Type: ApplicationFiled: April 27, 2011Publication date: June 21, 2012Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)Inventors: Antonella SANGUINETI, Riccardo Martinotti, Raoul Fiorone