发明名称 |
Method, System and Apparatus for Negotiating Security Capabilities During Movement of UE |
摘要 |
A method for negotiating security capabilities during movement of a User Equipment (UE) includes the following steps: a target network entity receives a Routing Area Update (RAU) Request from the UE; the entity obtains Authentication Vector (AV)-related keys deduced according to a root key, and sends the selected security algorithm to the UE; and the UE deduces the AV-related keys according to the root key of the UE. A system, SGSN, and MME for negotiating security capabilities during movement of a UE are also disclosed. The present invention is applicable to security capability negotiation between the UE and the network. |
申请公布号 |
US2017127284(A1) |
申请公布日期 |
2017.05.04 |
申请号 |
US201715408684 |
申请日期 |
2017.01.18 |
申请人 |
HUAWEI TECHNOLOGIES CO.,LTD. |
发明人 |
HE Chengdong |
分类号 |
H04W12/08;H04W8/22;H04W12/04;H04W8/02;H04L29/06;H04W12/06 |
主分类号 |
H04W12/08 |
代理机构 |
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代理人 |
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主权项 |
1. A communications system, comprising:
a mobility management entity (MME) in a LTE network; and a serving GPRS support node (SGSN) in a second generation or third generation (2G/3G) network that receives a routing area update (RAU) request from a user equipment (UE) that moves in an idle mode from a long term evolution (LTE) network to the 2G/3G network and sends a context request to the mobility management entity (MME) to request a mobility management context according to the RAU request, wherein the MME receives the context request from the SGSN, deduces authentication vector (AV)-related keys according to a root key of the MME, and sends a mobility management context to the SGSN, and wherein the mobility management context comprises the AV-related keys, and the AV-related keys comprise an integrity protection key (IK) and a ciphering key (CK). |
地址 |
Shenzhen CN |