Information security – Access control or authentication – Network
Reexamination Certificate
2011-06-07
2011-06-07
Chai, Longbit (Department: 2431)
Information security
Access control or authentication
Network
C380S278000, C380S279000, C713S168000, C713S169000, C713S170000, C713S171000, C726S003000, C726S005000, C726S006000, C726S007000
Reexamination Certificate
active
07958542
ABSTRACT:
For the transmission of an MBMS content to a plurality of user equipment units, the use of a p2m channel may only be beneficial if the number of joined user equipment units exceeds a threshold. However, counting is made difficult due to the fact that idle mode UE, also a non joined UE, may reply to the notification, and hence pretend a higher number of UEs which are ready and able to receive the MBMS content. According to the present invention, when joining the MBMS service, a number which is only known to the user equipment unit, as well as to those RNCs which will deliver the MBMS service for which the UE has joined, is provided to the UE. Whenever the UE replies to a service notification, it uses this number. The RNC determines a corresponding number and in case the number received from the UE matches the number determined by the RNC, the UE is counted. Advantageously, an integrity protection may be provided for the notification reply for joined UEs which are still in the idle mode.
REFERENCES:
patent: 5396543 (1995-03-01), Beeson et al.
patent: 6275695 (2001-08-01), Obhan
patent: 2002051006 (2002-02-01), None
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3GPP TS 25.346 V1.20 (Jan. 2001) 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Introduction of the Multimedia Broadcast Multicast Service (MBMS) in the Radio Access Network: Global System for Mobile Communication pp. 1-16.
3GPP TR 23.846 6.1.0 (Dec. 2002) 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description (Release 6) GSM: Global System for Mobile Communication pp. 1-114.
Chai Longbit
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
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