CIoT Terminal Core Network Attachment Procedure
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Solution Overview
Problem
The existing technologies lack a clear method for connecting CIoT terminals to core networks and optimizing data transmission and reception procedures, which is essential for efficient power management and low data rate communication in IoT applications.
Innovation Solution
The proposed solution defines a communication procedure for CIoT terminals that includes multiple transmission methods, involving a User Equipment, Mobility Management Entity, and specific methods for attaching and detaching from core networks, optimized for user data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a CIoT terminal connects to a core network using existing attachment procedures, then connectivity is established, but power consumption increases and battery life decreases
Solution Approach 1:
The patent modifies the attachment procedure parameters by introducing a data bearer establishment request during the attachment process itself, eliminating the need for a separate data bearer setup. This parameter change in the procedure flow reduces the number of signaling exchanges and maintains connectivity while optimizing power consumption for CIoT terminals.
2Productivity
If multiple transmission methods are provided for CIoT terminals, then communication efficiency improves, but device complexity increases
Solution Approach 1:
The patent implements a universal attachment procedure that serves multiple functions: establishing connectivity, setting up data bearers, and optimizing power consumption all in one process. This multi-functional approach eliminates the need for separate procedures for each transmission method, thereby improving communication efficiency without increasing device complexity.
Solution Approach 2:
The patent merges the attachment procedure and data bearer establishment procedure into a single integrated process. By combining these two previously separate procedures, the system achieves multiple transmission methods (including optimized power consumption mode) without requiring the terminal to manage complex separate procedures, thus improving productivity while controlling device complexity.
3Use of energy by moving object
If optimized data transmission procedures are implemented for CIoT terminals, then power efficiency improves, but compatibility with existing core networks deteriorates
Solution Approach 1:
The patent introduces a dynamic attachment procedure that can adapt to different network types (existing core networks and CIoT-optimized networks). The procedure dynamically adjusts its behavior based on network capabilities, allowing CIoT terminals to achieve optimized power efficiency when supported while maintaining backward compatibility with existing networks through the same standardized procedure.
4Ease of operation
If a standardized communication procedure is defined for CIoT terminals, then ease of operation improves, but implementation complexity in existing networks increases
Solution Approach 1:
The patent performs preliminary actions by establishing the data bearer during the attachment procedure itself, before any separate data transmission is needed. This preliminary setup simplifies the operation for CIoT terminals as they only need to perform the standard attachment procedure, while the network side handles the additional bearer setup logic as part of the standardized flow, balancing ease of operation with manageable implementation complexity.
Data Source
AI summary
To provide a communication procedure for data transmission and/or reception suitable to a CIoT terminal. In a communication control method by a terminal apparatus according to the present invention, a first data transmission and/or reception method is a method for transmitting and/or receiving user data by use of a Signalling Radio Bearer (SRB), a second data transmission and/or reception method is a method for transmitting and/or receiving user data by use of a Data Radio Bearer (DRB), and the communication control method includes a step of changing the user data transmission and/or reception method from the first data transmission and/or reception method into the second data transmission and/or reception method, and a step of transmitting and/or receiving the user data to/from a core network by the second data transmission and/or reception method.