Method and system for root cause analysis across multiple network systems

US11516071B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Athanasios Karapantelakis · Solna, SE
• Rafia Inam · Västerås, SE
• Yifei Jin · Solna, SE
• Ioannis Fikouras · Alsdorf, DE
• Qiang Li · Beijing, CN
• Konstantinos Vandikas · Solna, SE
• Michael Eric Buisman · Kildare, IE

Key dates

• Filing date: Mar 12, 2019
• Grant date: Nov 29, 2022
• Expiry date: Mar 12, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L43/50
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Method and system for Root Cause Analysis (RCA) across multiple network systems. Update information of a first local root cause analysis mechanism is received. An RCA controller generates, based on the update information, a new node to be added to a global root cause decision tree, where the global root cause decision tree is to be shared by at least two of the plurality of network operators. The RCA controller requests storage of the new node in a distributed ledger that is shared by network operators. The RCA controller participates in a verification operation of the new node. In response to determining that the verification operation is successful, the RCA controller adds an entry including the new node to the distributed ledger as part of the global root cause decision tree. Alternatively, when the verification operation is not successful, the new node is not added to the distributed ledger.