Invention Grant
- Patent Title: Determining a path in a communication network
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Application No.: US16307415Application Date: 2016-06-06
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Publication No.: US11962486B2Publication Date: 2024-04-16
- Inventor: Gianmarco Bruno , Daniele Ceccarelli , Francesco Lazzeri , Jeroen Nijhof
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Murphy, Bilak & Homiller, PLLC
- International Application: PCT/EP2016/062800 2016.06.06
- International Announcement: WO2017/211385A 2017.12.14
- Date entered country: 2018-12-05
- Main IPC: H04L45/02
- IPC: H04L45/02 ; H04L45/12 ; H04L45/42 ; H04L45/74 ; H04L45/64

Abstract:
A method (100) of end-to-end path computation across a plurality of domains (20) in a communication network comprises receiving (101) a request for a path across the plurality of domains. The method comprises computing (110) in a network control entity (50) the end-to-end path across the plurality of domains as part of a hierarchical path computation. Computing the end-to-end path comprises determining if a stored path corresponding to at least a part of the end-to-end path matches one or more criteria of the end-to-end path, and if so, using the stored path for the end-to-end path computation. The method further comprises transmitting (120) information indicating at least part of the stored path to a domain control entity (30) configured to control a said one of the plurality of domains involved in the end-to-end path.
Information query