Patents by Inventor Laurent Marchand
Laurent Marchand 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: 8208484Abstract: A method and a router having a plurality of blades comprising at least a first blade and a second blade. The router comprises an interconnect providing a plurality of channels, each of which being used between two of the blades. The first blade receives a packet addressed to exit the router via the second blade, segments the packets into at least two fragments and forwards each fragment to at least two different blades, each via one of the interconnect's channels. The interconnect may be an optical interconnect by which a single wavelength from one blade defines one of the plurality of channels and wherein each blade supports a plurality of wavelengths. The at least two different blades may comprise each blade of the router, except the first blade. Each of the plurality of channels may also be a dedicated channel between two of the blades.Type: GrantFiled: March 17, 2010Date of Patent: June 26, 2012Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Robert Brunner, Laurent Marchand
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Patent number: 8085793Abstract: A method and nodes are provided for localizing traffic between communication nodes receiving service from a same network. A local mobility anchor informs media access gateways providing access to two communication nodes of each other's addresses. Traffic exchanged between the two communication nodes connected to the same network via these media access gateways are routed directly between the gateways, bypassing the local mobility anchor.Type: GrantFiled: November 30, 2007Date of Patent: December 27, 2011Assignee: telefonaktiebolaget LM Ericsson (Publ)Inventors: Suresh Krishnan, Laurent Marchand
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Publication number: 20110170540Abstract: A method and a router having a plurality of blades comprising at least a first blade and a second blade. The router comprises an interconnect providing a plurality of channels, each of which being used between two of the blades. The first blade receives a packet addressed to exit the router via the second blade, segments the packets into at least two fragments and forwards each fragment to at least two different blades, each via one of the interconnect's channels. The interconnect may be an optical interconnect by which a single wavelength from one blade defines one of the plurality of channels and wherein each blade supports a plurality of wavelengths. The at least two different blades may comprise each blade of the router, except the first blade. Each of the plurality of channels may also be a dedicated channel between two of the blades.Type: ApplicationFiled: March 17, 2010Publication date: July 14, 2011Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Robert Brunner, Laurent Marchand
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Patent number: 7848280Abstract: Reduction of overhead normally caused by the addition of a second IP header in case of tunneling between a home agent and a mobile node located in a foreign network is achieved by replacing an encapsulated first IP header by a tunnel identifier. The home agent and the mobile node agree on a tunnel identifier value at the time of binding update and acknowledgement. The tunnel identifier may be used independently at the home agent and at the mobile node to reconstruct the first IP header, which identifies a correspondent node. Because the encapsulated first IP header is not terminated at either of the home agent or mobile node, overhead reduction is not impacted by eventual transmission error or loss between these two nodes.Type: GrantFiled: August 28, 2007Date of Patent: December 7, 2010Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Suresh Krishnan, Laurent Marchand
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Patent number: 7606201Abstract: A system, a method and a Mobile Node (MN) for enabling a handover of the MN from a current serving access router (PAR) to a next serving access router (NAR) in a data communications network. At least one tunnel is present between the PAR and the NAR to enable data exchange therebetween. The MN has a first address valid under the PAR and is capable of forming a second address valid under the NAR prior to completion of the handover. The MN sends a handover request to the PAR and proceeds with a connection to the NAR without discarding its first address. The MN then completes the handover towards the NAR and receives traffic sent on the first address from the NAR.Type: GrantFiled: April 25, 2006Date of Patent: October 20, 2009Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Li Jun Zhang, Laurent Marchand
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Publication number: 20090080441Abstract: A method and nodes are provided for localizing traffic between communication nodes receiving service from a same network. A local mobility anchor informs media access gateways providing access to two communication nodes of each other's addresses. Traffic exchanged between the two communication nodes connected to the same network via these media access gateways are routed directly between the gateways, bypassing the local mobility anchor.Type: ApplicationFiled: November 30, 2007Publication date: March 26, 2009Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Suresh Krishnan, Laurent Marchand
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Publication number: 20080310344Abstract: Reduction of overhead normally caused by the addition of a second IP header in case of tunneling between a home agent and a mobile node located in a foreign network is achieved by replacing an encapsulated first IP header by a tunnel identifier. The home agent and the mobile node agree on a tunnel identifier value at the time of binding update and acknowledgement. The tunnel identifier may be used independently at the home agent and at the mobile node to reconstruct the first IP header, which identifies a correspondent node. Because the encapsulated first IP header is not terminated at either of the home agent or mobile node, overhead reduction is not impacted by eventual transmission error or loss between these two nodes.Type: ApplicationFiled: August 28, 2007Publication date: December 18, 2008Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Suresh Krishnan, Laurent Marchand
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Patent number: 7292575Abstract: A method and packet switched cellular telecommunication system wherein data flows from a terminal are aggregated into one or more Multi Protocol Label Switching (MPLS) Label Switched Path (LSP) based on at least one criterion. In a first embodiment, the data flows are aggregated into LSP(s) based on a Quality of Service (QoS) class of each such data flows, by a Network Node, such as a Radio network Controller (RNC) or a Serving GPRS Support Node (SGSN). In a second embodiment, the data flows or LSPs are aggregated into another LSP(s) based on the destination routing area. The LSP aggregation is performed by an Edge Node of the routing area, such as a Gateway GPRS Support Node (GGSN). In a first variant of the 2nd embodiment, the aggregation is used for macro-mobility, while in yet another variant the same aggregation is used for defining a virtual private network.Type: GrantFiled: July 24, 2002Date of Patent: November 6, 2007Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Yves Lemieux, Laurent Marchand
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Publication number: 20060251101Abstract: A method and a node for establishing a tunnel with a set of minimal characteristics with a second node in a network. The node comprises a tunneling protocol module that determines a first set of desired characteristics and comprising a sub-option indicating a need for an authentication characteristic. The tunneling protocol module sends a tunnel request message comprising the first set of characteristics and sends a shared secret key with an index value thereof. The tunneling protocol module receives a tunnel reply message comprising a second set of desired characteristics determined by the second node and verifies if the second set of characteristics is at least equal to the set of minimal characteristics. If so, the tunneling protocol module sends a tunnel acknowledgment message. The shared secret is used to encrypt data and the index value indicates that the shared secret is used to encrypt the data.Type: ApplicationFiled: April 25, 2006Publication date: November 9, 2006Inventors: Li Zhang, Laurent Marchand
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Publication number: 20060251022Abstract: A system, a method and a Mobile Node (MN) for enabling a handover of the MN from a current serving access router (PAR) to a next serving access router (NAR) in a data communications network. At least one tunnel is present between the PAR and the NAR to enable data exchange therebetween. The MN has a first address valid under the PAR and is capable of forming a second address valid under the NAR prior to completion of the handover. The MN sends a handover request to the PAR and proceeds with a connection to the NAR without discarding its first address. The MN then completes the handover towards the NAR and receives traffic sent on the first address from the NAR.Type: ApplicationFiled: April 25, 2006Publication date: November 9, 2006Inventors: Li Zhang, Laurent Marchand
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Patent number: 6714515Abstract: A Radio Network Server (RNS) is modified to function as a policy server providing radio network resource allocation rules in an integrated third generation wireless IP network. The RNS determines a level of availability of radio network resources, and determines whether the level is sufficient to satisfy requests for resources in accordance with policy rules. The RNS informs a Bandwidth Broker (BB) whether the radio network resources are available. The BB functions as a Policy Decision Point (PDP) for its domain, and either allows or denies requests from users for network resources based on the input from the RNS. A plurality of edge routers in each domain interface with the BB utilizing the Common Open Policy Service (COPS) protocol interface. The edge routers function as Policy Enforcement Points (PEPs) for their domain to enforce policy decisions made by the BB. The BB may interface with BBs in other domains for calls that span multiple domains.Type: GrantFiled: May 16, 2000Date of Patent: March 30, 2004Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Laurent Marchand
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Publication number: 20040017796Abstract: A method and packet switched cellular telecommunication system wherein data flows from a terminal are aggregated into one or more Multi Protocol Label Switching (MPLS) Label Switched Path (LSP) based on at least one criterion. In a first embodiment, the data flows are aggregated into LSP(s) based on a Quality of Service (QoS) class of each such data flows, by a Network Node, such as a Radio network Controller (RNC) or a Serving GPRS Support Node (SGSN). In a second embodiment, the data flows or LSPs are aggregated into another LSP(s) based on the destination routing area. The LSP aggregation is performed by an Edge Node of the routing area, such as a Gateway GPRS Support Node (GGSN). In a first variant of the 2nd embodiment, the aggregation is used for macro-mobility, while in yet another variant the same aggregation is used for defining a virtual private network.Type: ApplicationFiled: July 24, 2002Publication date: January 29, 2004Applicant: Telefonaktiebolaget L M EricssonInventors: Yves Lemieux, Laurent Marchand