Secure registration for a multicast-broadcast-multimedia system (MBMS)
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United States of America Patent
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Jan 17, 2012
Grant Date -
Jan 13, 2005
app pub date -
Jul 7, 2003
filing date -
Jul 7, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method and an apparatus for secure registration for a multicast-broadcast-multimedia system (MBMS) are disclosed. A random number is generated by a broadcast-multicast-service center (BM-SC) and broadcast to user equipment in the coverage area of a radio access network (RAN). A memory module or smart card (UICC) in the user equipment generates a radio access network key (RAK) which is a function of the random number and a key selected from the group consisting of a public land mobile network key (PK) and a broadcast access key (BAK), and then generates a temporary registration key (RGK) as a function of the RAK, a service identification number and a user identification number, for example, P-TMSI, which may be extracted by the RAN to authenticate the registration as legitimate.
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