APPARATUS AND METHOD FOR DETECTING PRACH STORM ATTACKS

A method for PRACH attack detection may comprise detecting by a base station a plurality of preambles sent by devices through a physical random access channel, PRACH; launching by the base station a Random Access, RA, procedure for at least one device for which a preamble has been detected; decoding...

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Hauptverfasser: SANTORO, Renaud, KRIAA, Siwar, PAPILLON, Serge, SAIDI, Taofik, FEKI, Afef
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for PRACH attack detection may comprise detecting by a base station a plurality of preambles sent by devices through a physical random access channel, PRACH; launching by the base station a Random Access, RA, procedure for at least one device for which a preamble has been detected; decoding by the base station at least one Radio Resource Control, RRC, connection request received in the context of a launched RA procedure; determining by the base station a first metric and a second metric, wherein the first metric is the number of RRC connection request successfully decoded over a period of time, wherein the second metric is the number of preambles detected over the same period of time and for which a RA procedure has been launched; determining whether there is a suspicion of storm attack over the PRACH based on a result of a comparison of the first metric with the second metric.