MTC-IWF Control Plane Signaling for Small Data Transmission
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Solution Overview
Problem
Current machine type communication (MTC) systems waste network resources by requiring the establishment of control plane and user plane bearers for exchanging small data volumes between MTC terminals, even when only control plane signaling is necessary.
Innovation Solution
A data transmission method where an MTC-IWF entity receives control plane signaling, determines route information to direct the data packet to the target UE without establishing a user plane bearer, using mobility management entities or other MTC-IWF entities within the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control plane and user plane bearers are established for data exchange between MTC terminals, then data transmission capability is improved, but network resource consumption increases
Solution Approach 1:
The patent extracts the user plane bearer establishment step from the traditional data transmission process. By using only control plane signaling to carry user data, the solution removes the need for separate user plane bearer setup, thereby reducing network resource consumption while maintaining data transmission capability between MTC terminals
Solution Approach 2:
The control plane signaling is made multi-functional by enabling it to carry both control information and user data. This allows the control plane to serve dual purposes, eliminating the need for dedicated user plane bearers and reducing overall network resource usage
2Reliability
If user plane bearer is established for small data volume transmission, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent removes the user plane bearer establishment process from the data transmission procedure. By relying solely on control plane signaling for small data volumes, the solution simplifies the transmission path and reduces the complexity of bearer management while maintaining adequate transmission reliability through existing control plane mechanisms
Data Source
AI summary
A data transmission method and a data transmission entity are disclosed. Embodiments include receiving, by a first MTC-IWF entity, first control plane signaling from a first mobility management entity, where the first control plane signaling carries a data packet that is from first UE, and wherein a target UE of the data packet is a second UE, determining, first route information, where the first route information is used for indicating a second network side device that serves second UE and sending, by the first MTC-IWF entity to the second network side device according to the first route information, second control plane signaling carrying the data packet so that the second network side device sends the data packet to the second UE.