发明名称 |
Method for Negotiating Security Capability when Terminal Moves |
摘要 |
Methods of security negotiation for idle state mobility from a first network to a long term evolution (LTE) network are disclosed. In one embodiment, a service general packet radio service (GPRS) support node (SGSN) of the first network transmits an authentication vector-related key to a mobility management entity (MME). A user equipment (UE) sends its security capabilities including non-access stratum (NAS) security capabilities to the MME. The MME selects a NAS security algorithm, in accordance with the NAS security capabilities of the UE, and sends a message that indicates the selected NAS security algorithm to the UE. The MME also derives, in accordance with the selected NAS security algorithm, a NAS protection key from an authentication vector-related key so as to security communication between the UE and the LTE network. |
申请公布号 |
US2016088472(A1) |
申请公布日期 |
2016.03.24 |
申请号 |
US201514957338 |
申请日期 |
2015.12.02 |
申请人 |
HUAWEI TECHNOLOGIES CO.,LTD. |
发明人 |
HE Chengdong |
分类号 |
H04W12/04;H04L9/08;H04L29/06;H04W12/06;H04W12/10 |
主分类号 |
H04W12/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method of security negotiation for idle state mobility from a first network to a long term evolution (LTE) network, the method comprising:
transmitting an authentication vector-related key from a service general packet radio service (GPRS) support node (SGSN) of the first network to a mobility management entity (MME) included in the LTE network; receiving, by the MME, security capabilities of a user equipment (UE) including non-access stratum (NAS) security capabilities of the UE from the UE; selecting, by the MME, a NAS security algorithm supported by the NAS security capabilities of the UE; sending, by the MME, a message that indicates the selected NAS security algorithm to the UE; and deriving, by the MME, a NAS protection key with the selected NAS security algorithm from the authentication vector-related key. |
地址 |
Shenzhen CN |