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1. 发明申请

WO2020187417A1 METHODS, APPARATUS AND COMPUTER PROGRAMS FOR CONFIGURING A TELECOMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2020187417A1
公开(公告)日：2020-09-24
申请号：PCT/EP2019/056990
申请日：2019-03-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FIASCHI, Giovanni , SOLDATI, Pablo , LIN, Yun
IPC分类号： H04L12/851 , H04L12/729 , H04L12/24 , H04L12/26
摘要： A method is provided for configuring a telecommunication network comprising a plurality of nodes, with pairs of nodes being connected by respective links and each link having a respective link capacity. Traffic directed over the telecommunication network is associated with one of a plurality of traffic classes, with each traffic class having a respective priority value. The method comprises: a) determining an amount of traffic associated with each traffic class flowing on a first link of the telecommunication network; b) for each traffic class, determining a traffic class link capacity, the traffic class link capacity for a particular traffic class varying as a function of a difference between the link capacity of the first link and capacity allocated to other traffic classes on the first link according to a scheduling algorithm based on the priority value of the particular traffic class and the priority values of the other traffic classes; c) for each traffic class, determining a traffic class link criticality of the first link as a function of the respective traffic class link capacity and an amount of traffic associated with the traffic class flowing on the first link; d) determining one or more overall traffic class link criticalities for the first link, the overall traffic class link criticality for a particular traffic class for the first link varying as a function of a sum of the traffic class link criticalities for one or more traffic classes for the first link, the one or more traffic classes including at least the particular traffic class and each traffic class of the plurality of traffic classes for which the traffic class link capacity varies by virtue of the scheduling algorithm and the priority value associated with the particular traffic class; e) repeating steps a) to d) for one or more second links of the telecommunication network; and f) configuring the telecommunication network based on the overall traffic class link criticalities for the first link and the one or more second links.

2. 发明申请

WO2022253437A1 METHODS, APPARATUS AND COMPUTER-READABLE MEDIA FOR PATH ROUTING AND TRAFFIC ALLOCATION IN A COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2022253437A1
公开(公告)日：2022-12-08
申请号：PCT/EP2021/064888
申请日：2021-06-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FIASCHI, Giovanni , LIN, Yun , NORDENSKY, Patrik , CECCARELLI, Daniele
IPC分类号： H04L45/121 , H04L45/12 , H04L45/64
摘要： A method is disclosed for configuring a communication network. The communication network comprises a plurality of nodes, with pairs of nodes being connected by respective links. Each link is associated with a cost metric having a first value in a first direction of traffic flow and a second value in a second, opposite direction of traffic flow. The method comprises: receiving a demand for connectivity between a first node and a second node of the plurality of nodes, the demand specifying first traffic for the demand flowing in a direction from the first node to the second node, and second traffic for the demand flowing in an opposite direction from the second node to the first node; executing a path-finding process to determine one or more calculated paths from the first node to the second node, wherein the path-finding process seeks to minimize a sum of the cost metric for each link in the calculated path in both the first and second directions; establishing the one or more calculated paths in the communication network for the first traffic, and establishing respective co-routed paths in the opposite direction for the second traffic; and allocating the first traffic for the demand to the one or more calculated paths and the second traffic for the demand to the one or more co-routed paths.

3. 发明申请

WO2021244743A1 METHODS, APPARATUS AND MACHINE-READABLE MEDIA RELATED TO ROUTING IN A COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2021244743A1
公开(公告)日：2021-12-09
申请号：PCT/EP2020/065442
申请日：2020-06-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： FIASCHI, Giovanni , LIN, Yun
IPC分类号： H04L12/707 , H04L12/851 , H04L45/22 , H04L47/2441
摘要： A method performed by a network controller for a mobile transport network comprises: obtaining traffic information for a plurality of demands for connectivity from client nodes through the mobile transport network, the traffic information for each demand identifying a client node for the demand, an egress node for the demand and an amount of traffic for the demand; calculating, for each demand, one or more paths from the client node, via an ingress node, to the egress node through the mobile transport network; mapping each path for a demand to a source port in the ingress node for the demand; providing the mapping to the ingress nodes to enable routing of traffic pertaining to the demands via the paths, based on the source port; and providing the source ports to the client nodes for inclusion in traffic pertaining to the demands.

4. 发明申请

WO2021046689A1 METHOD AND NETWORK NODE FOR LABEL SWITCHED PATH TRACEROUTE 审中-公开
公开(公告)号：WO2021046689A1
公开(公告)日：2021-03-18
申请号：PCT/CN2019/104958
申请日：2019-09-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LU, Ying
发明人： LU, Ying , LIN, Yun , YANG, Shuo , SUN, Wei , ZHAO, Jinfeng
IPC分类号： H04L12/717
摘要： The present disclosure provides a method (100) in a network node advertising a Binding Segment Identifier, BSID. The method (100) includes: receiving (110) a first echo request packet containing a first target Forwarding Equivalence Class, FEC, stack including an FEC associated with the BSID; and transmitting (120), in response to a Time To Live, TTL, expiration associated with the first echo request packet, a first echo reply packet to an initiating network node initiating the first echo request packet, the first echo reply packet containing an indicator indicating that the FEC is to be replaced by a set of FECs.

5. 发明申请

WO2020097760A1 METHODS, NETWORK ELEMENT AND COMPUTER READABLE MEDIA FOR MONITORING LSP HEALTH IN A SR ENABLED NETWORK 审中-公开
公开(公告)号：WO2020097760A1
公开(公告)日：2020-05-22
申请号：PCT/CN2018/115054
申请日：2018-11-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LIN, Yun
发明人： LIN, Yun , SUN, Wei , LU, Ying , ZHOU, Zhe , ZHAO, Jinfeng
IPC分类号： H04L12/715
摘要： The present disclosure provides methods for monitoring LSP health in a SR enabled network, and corresponding entities. A method implemented at a network element comprises monitoring a forwarding state of the network element; generating Multiprotocol Label Switch, MPLS, forwarding state information based on the forwarding state; and transmitting the forwarding state information to a network controller. The present disclosure further discloses a corresponding method implemented at a network controller which comprises receiving Multiprotocol Label Switch, MPLS, forwarding state information from a network element, wherein the MPLS forwarding state information indicates a forwarding state of the network element; and determining the forwarding state of the network element based on a type of the MPLS forwarding state information. The present disclosure further provides corresponding computer readable medium.

6. 发明公开

EP4029209A1 METHOD AND NETWORK NODE FOR LABEL SWITCHED PATH TRACEROUTE 有权
公开(公告)号：EP4029209A1
公开(公告)日：2022-07-20
申请号：EP19945274.9
申请日：2019-09-09
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： LU, Ying , LIN, Yun , YANG, Shuo , SUN, Wei , ZHAO, Jinfeng
IPC分类号： H04L12/717

7. 发明公开

EP3942756A1 METHODS, APPARATUS AND COMPUTER PROGRAMS FOR CONFIGURING A TELECOMMUNICATION NETWORK 有权
公开(公告)号：EP3942756A1
公开(公告)日：2022-01-26
申请号：EP19713409.1
申请日：2019-03-20
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： FIASCHI, Giovanni , SOLDATI, Pablo , LIN, Yun
IPC分类号： H04L12/851 , H04L12/729 , H04L12/24 , H04L12/26

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