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Data transmission system and method, and apparatus thereof

專(zhuān)利號(hào)
US11997491B2
公開(kāi)日期
2024-05-28
申請(qǐng)人
Huawei Technologies Co., Ltd.(CN Shenzhen)
發(fā)明人
Longhua Guo; He Li; Jing Chen
IPC分類(lèi)
H04W12/104; H04W4/029
技術(shù)領(lǐng)域
privacy,gmlc,location,ue,udm,setting,amf,data,message,network
地域: Shenzhen

摘要

A data transmission method includes calculating, by a user equipment (UE), a first message authentication code of first location privacy setting data, sending, by the UE, the first message authentication code and the first location privacy setting data to a data management network element, receiving, by the UE, a second message authentication code from the data management network element, calculating, by the UE, a third message authentication code of the first location privacy setting data, determining, by the UE, that the first location privacy setting data is not tampered with when the second message authentication code is the same as the third message authentication code.

說(shuō)明書(shū)

According to the sixth aspect, the data management network element verifies whether the first message authentication code is the same as the second message authentication code to determine whether the first location privacy setting data is tampered with, to effectively prevent location privacy setting data from being tampered with, thereby ensuring end-to-end integrity protection of the location privacy setting data between the user terminal and the data management network element.

With reference to the sixth aspect, in a possible implementation, the data management network element may independently calculate the second message authentication code of the first location privacy setting data, for example, calculate the second message authentication code of the first location privacy setting data based on a first freshness parameter or a first random value. Alternatively, the data management network element may obtain the second message authentication code of the first location privacy setting data from an authentication service network element. For example, the data management network element notifies the authentication service network element of a first freshness parameter, and then the authentication service network element calculates the second message authentication code of the first location privacy setting data based on the first freshness parameter, and notifies the data management network element of the second message authentication code.

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