The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Oct. 09, 2013
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Fabio Ubaldi, Pisa, IT;
Paola Iovanna, Pisa, IT;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A multi-domain network () has a Hierarchical Path Computation Element, H-PCE, architecture comprising a Parent Path Computation Element, P-PCE () and a Child Path Computation Element, C-PCE, (-) at each of the domains (-). A C-PCE (-) determines summarised domain topology information about the domain (-). The summarized domain topology information comprises at least one of: an indication of whether the domain (-) is capable of supporting Point-to-Multi-Point services; an indication of whether a node of the summarised domain topology is capable of supporting a branch point for Point-to-Multi-Point services. The summarised domain topology information is sent to a P-PCE () via a communication interface (). The P-PCE () computes an end-to-end Point-to-Multi-Point tree using a topology based on summarised domain topology information () received from the Child Path Computation Elements. The P-PCE () requests each C-PCE (-) of a domain in the computed end-to-end Point-to-Multi-Point tree to compute an intra-domain path.