Method for detecting timing references affected by a change in path delay asymmetry between nodes in a communication network

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United States of America Patent

PATENT NO 9813175
APP PUB NO 20160211936A1
SERIAL NO

14913143

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for detecting a timing reference affected by a change in path delay asymmetry in a communications network comprising a master node having a master clock and a plurality of slave nodes each having a respective slave clock is provided. The method comprises: determining that a first timing reference received by a first slave node indicates a time correction to its slave clock greater than a time correction threshold; determining whether one or more other slave nodes have received a timing reference indicating a time correction to their slave clock greater than a time correction threshold; and determining whether the first timing reference is affected by a change in path delay asymmetry based on the determining of whether one or more other slave nodes have received a timing reference indicating a time correction to their slave clock greater than a time correction threshold. Apparatus and a computer program for detecting a timing reference affected by a change in path delay asymmetry in a communications network are also provided.

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Patent Owner(s)

  • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bottari, Giulio Pisa, IT 73 506
Ruffini, Stefano Pisa, IT 72 727

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