Mobility management entity, mobile terminal, controlled parameter transmission system and controlled parameter transmission method

Abstract

The invention provides a mobility management entity, a mobile terminal, a controlled parameter transmission system and a controlled parameter transmission method. The method includes the following steps: a transmission message is generated and transmitted to the mobile terminal, and a controlled parameter, a verification parameter and a first authentication parameter are carried by the transmission message; a response message fed back by the mobile terminal is received; after the response message is received, an acknowledgement message is fed back to the mobile terminal. By implementing the invention, the MME (mobility management entity) adds the controlled parameter, the verification parameter and the first authentication parameter into the same transmission message, and transmits the transmission message to the UE (user equipment), the UE feeds back the response message to the MME after verifying the transmission message, the MME transmits the acknowledgement message to the UE after receiving the response message, and thereby the transmission of the controlled parameter is complete by means of three times of information interaction; compared with the conventional controlled parameter transmission method, the flow is simplified.

Description

technical field [0001] The present invention relates to the application field of machine type communication, and in particular to a mobile management device, a mobile terminal, a control parameter transmission system and a method for completing the transmission of controlled parameters required by machine type communication. Background technique [0002] Machine-to-machine (M2M, Machine to Machine) communication refers to a series of technologies or technology combinations that use technologies such as automatic control and network communication to realize autonomous data communication and information interaction between machines without human intervention. 3GPP The protocol defines M2M communication using a cellular network for data transmission as Machine Type Communication (MTC, Machine Type Communication). [0003] MTC has the "Time Controlled" feature, which means that the mobile terminal (UE, User Equipment) only sends and receives data within a predefined time period,...

AI Technical Summary

Problems solved by technology

Time-controlled MTC specifically includes the following requirements: network operators can only allow UE access within a defined period of time; network operators can adjust UE access based on their defined criteria (such as daily traffic load) Time period; the network operator can notify the UE and the MTC server of the adjusted access time. The accessible time includes time slots (time interval) and time windows (time window). If the network side sends the time slot and time window to the UE The information is not protected, and the attacker can tamper with the information to shorten or increase the time slot and time window. After the time slot and time window are shortened, the UE does not have enough time to complete the scheduled work; otherwise, the UE may be forced to repeat the execution its work, resulting in increased energy consumption and network congestion

[0004] In order to protect the integrity of the time-controlled parameters (that is, the value of the slot and time window) sent to the UE by the Mobility Management Entity (MME, Mobility Management Entity) on the network side, such as figure 1 As shown, the transmission method of the existing controlled parameters first executes the NAS SMC (NAS, Non-Access Stratum, non-access stratum; SMC, Security Mode Command, security mode command) process, and then uses the security mechanism established by the NAS SMC to Protect the controlled parameters sent by the MME on the network side; figure 1 In the transmission method of the controlled parameters shown, the MME and the UE need to exchange information four times to complete the transmission of the controlled parameters, and two verifications are required on the UE side, which is relatively complicated

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