发明名称 |
METHODS AND SYSTEMS FOR HFN HANDLING AT INTER-BASE STATION HANDOVER IN MOBILE COMMUNICATION NETWORKS |
摘要 |
Systems and methods for addressing the de-synchronization of the cryptsync between the network and the mobile stations (eNB) that can occur at mobility are addressed. De-synchronization is resolved by forwarding HFN and PDCP Sequence Number(s) from the source eNB to the target eNB. In order to avoid re-use of a crytosync for a given key, a backward offset from the initial COUNT value is used by the target eNB. These approaches do not require an over-the-air signaling and the COUNT value handling in the network is transparent to the mobile station.
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申请公布号 |
CA2702259(A1) |
申请公布日期 |
2009.05.07 |
申请号 |
CA20082702259 |
申请日期 |
2008.10.29 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
KITAZOE, MASATO;HO, SAI YIU DUNCAN |
分类号 |
H04W36/02 |
主分类号 |
H04W36/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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