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Data transmission system and method, and apparatus thereof

專利號(hào)
US11997491B2
公開日期
2024-05-28
申請人
Huawei Technologies Co., Ltd.（CN Shenzhen）
發(fā)明人
Longhua Guo; He Li; Jing Chen
IPC分類
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.

說明書

An example in which this embodiment of this application is applied to the schematic diagram of the network architecture shown in FIG. 4 is used. FIG. 5A and FIG. 5B are a schematic flowchart of a data transmission method according to Embodiment 1 of this application. In this embodiment, UE calculates a message authentication code of location privacy setting data, to effectively prevent the location privacy setting data from being tampered with, thereby ensuring end-to-end integrity protection of location privacy setting data between the UE and a UDM. The embodiment shown in FIG. 5A and FIG. 5B may include but are not limited to the following steps.

Step S101: UE calculates a first message authentication code of first location privacy setting data.

The first location privacy setting data is location privacy setting data entered or updated by a user on the UE. The UE may save the first location privacy setting data, so that the UE may report the first location privacy setting data to a UDM.

The UE may calculate the first message authentication code of the first location privacy setting data based on an input key and a first input parameter. Further, the UE derives a key used to calculate a message authentication code of location privacy setting data, and uses the key as the input key. The UE calculates a hash value for the first location privacy setting data by using the input key and the first input parameter, and the hash value is the first message authentication code.

權(quán)利要求

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