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Authentication method, device, and system

專利號
US11503467B2
公開日期
2022-11-15
申請人
HUAWEI TECHNOLOGIES CO., LTD.（CN Shenzhen）
發(fā)明人
Hua Li; Chengdong He; Bo Zhang
IPC分類
H04W12/06; H04W8/02; H04W12/63; H04L12/28
技術領域
network,rg,gateway,element,ng,virtual,udm,key,in,3gpp
地域： Guangdong

摘要

Example authentication methods, devices, and systems are provided, where those example can be used to verify validity of access location information of a next generation-residential gateway (NG-RG) in a fixed-mobile convergence architecture. One example method includes a network device receiving first link information that is used to represent an access location of a residential gateway, and the network device obtaining second link information of the residential gateway. When the first link information matches partial or all information of the second link information, or when the first link information matches partial or all information of one link information of the second link information, the network device verifies validity of the access location of the residential gateway.

說明書

Correspondingly, the NG-RG receives the NAS SMC request message from the 5G-AGF network element.

S513: Optionally, if the NAS SMC request message in step S512 includes the first virtual interface information, the NG-RG verifies whether the first virtual interface information is modified on an air interface.

For example, if the first virtual interface information included in the NAS SMC request message is the same as the first virtual interface information stored on the NG-RG, it may be determined that the first virtual interface information is not modified on the air interface; or, if the first virtual interface information included in the NAS SMC request message is different from the first virtual interface information stored on the NG-RG, it may be determined that the first virtual interface information is modified on the air interface.

Further, if the NG-RG verifies that the first virtual interface information is not modified on the air interface, the authentication method provided in the embodiment of this application further includes the following step.

S514: The NG-RG sends a NAS SMC complete message to the 5G-AGF network element.

Correspondingly, the 5G-AGF network element receives the NAS SMC complete message from the NG-RG.

S515: The 5G-AGF network element sends the NAS SMC complete message to the AMF network element.

Correspondingly, the AMF network element receives the NAS SMC complete message from the 5G-AGF network element.

S516: The AMF network element determines a second key based on a first key.

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