MTC Data Transmission via Control Plane Signaling
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Solution Overview
Problem
Machine Type Communication (MTC) devices face inefficiencies in signaling and power consumption due to the need for full connection cycles and data transmission procedures, which are not optimized for low data usage scenarios, leading to increased signal overhead and power consumption.
Innovation Solution
The proposed solution involves transmitting MTC data over control planes and appending it to control plane messages, allowing WTRUs to autonomously release connections without network intervention, and providing mechanisms for WTRUs to determine network MTC capabilities, thereby reducing signaling load and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full connection procedures are used for MTC data transmission, then reliable data transmission is achieved, but signaling overhead and power consumption increase
Solution Approach 1:
The patent applies partial action by allowing MTC devices to transmit data using simplified procedures (e.g., uplink data transmission without scheduling request or random access procedure) when data size is below a threshold. This partial approach avoids the complete connection establishment process, reducing power consumption while maintaining sufficient reliability for small data transmissions.
Solution Approach 2:
The patent changes the parameter of connection procedure complexity based on data transmission requirements. By introducing data size thresholds and corresponding transmission modes, the system adapts the connection establishment process - using full procedures only when necessary and simplified procedures for small data, thereby optimizing the balance between reliability and power consumption.
2Reliability
If full connection procedures are used for MTC data transmission, then reliable data transmission is achieved, but signaling overhead increases
Solution Approach 1:
The patent implements partial action by enabling MTC devices to use abbreviated transmission procedures for small data packets. By allowing data transmission without completing the full connection setup (e.g., skipping scheduling request or random access), the signaling overhead is significantly reduced while maintaining acceptable reliability for low-volume MTC traffic.
Solution Approach 2:
The patent modifies the connection procedure parameters based on data characteristics. By introducing data size as a decision parameter, the system dynamically selects between full and simplified procedures, changing the signaling complexity parameter to match the actual transmission needs, thereby reducing unnecessary signaling overhead.
3Loss of energy
If MTC devices autonomously release connections, then power consumption is reduced, but connection management complexity increases
Solution Approach 1:
The patent applies self-service by enabling MTC devices to autonomously release radio resources and disconnect from the network after data transmission without waiting for network-initiated release. This self-service mechanism allows devices to independently manage their own connections, reducing power consumption by quickly returning to idle state while the standardized procedures keep implementation complexity manageable.
4Loss of energy
If optimized transmission procedures are used, then power consumption is reduced, but compatibility with existing networks decreases
Solution Approach 1:
The patent introduces dynamic adaptability by allowing MTC devices to select between different transmission procedures based on network conditions and device capabilities. The system dynamically adjusts the transmission mode - using optimized procedures when supported and falling back to standard procedures when necessary - thereby maintaining both power efficiency and broad network compatibility.
Solution Approach 2:
The patent achieves universality by designing a multi-functional transmission framework that supports both traditional and optimized procedures. The MTC device capability indication mechanism allows the network to understand and support multiple transmission modes, making the system universally compatible across different network configurations while enabling power-efficient operations when conditions permit.
Data Source
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AI summary
Disclosed herein are embodiments for Machine Type Communication (MTC). The techniques disclosed may reduce signaling by transmitting MTC data over planes and avoiding a full cycle of connection procedures typically required for transmission. MTC data may be directly appended to a control plane message, in addition, in order to reduce the signaling load, a WTRU may autonomously release the connection without being told, by the network. Techniques may be used to indicate a network provider's machine type communication (MTC) capability. The MTC services or capabilities may be provided by a respective network operator may be communicated to a WTRU.