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1. (WO2018182482) A NETWORK NODE, A COMMUNICATIONS DEVICE AND METHODS THEREIN FOR SECURE PAGING

Pub. No.:    WO/2018/182482    International Application No.:    PCT/SE2018/050267
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 20 00:59:59 CET 2018
IPC: H04W 12/10
H04L 9/32
H04W 68/00
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: JOHANSSON, Nicklas
TORVINEN, Vesa
HÖGLUND, Andreas
DIACHINA, John Walter
Title: A NETWORK NODE, A COMMUNICATIONS DEVICE AND METHODS THEREIN FOR SECURE PAGING
Abstract:
A network node (504,506) and a method for enabling secure paging of a communications device (508). The network node (504,506) and the communications device 508 operate in a wireless communications network (500). The network node (504,506) obtains a sequence number that is unique to each communications device specific paging occasion that occurs within a period of time, and generates a Message Authentication Code (MAC) for a paging message to be transmitted in a specific paging occasion using the sequence number. Further, the network node (504,506) transmits the paging message comprising the generated MAC, whereby secure paging of the communications device (508) is enabled.