Uplink Data Transmission via Signaling Bearer
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Solution Overview
Problem
In the 3GPP LTE-Advanced system, the conventional method of transmitting uplink data is inefficient for small amounts of data, particularly in machine-to-machine (M2M) communication, leading to increased data transmission time and network load when multiple terminals connect simultaneously.
Innovation Solution
A method that determines if uplink data transmission is necessary only once, and if so, transmits the data using a signaling radio bearer without generating a data radio bearer, thereby reducing the data transmission time and process, and efficiently managing radio resources by including the uplink data in the RRC connection setup complete message.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal performs RRC connection setup process and DRB generation for uplink data transmission, then the data transmission can be established, but the data transmission time and network load increase significantly
Solution Approach 1:
The patent extracts the essential function of uplink data transmission by allowing terminals to use the existing SRB1 for small data packets without requiring full DRB setup. This separates the complete data transmission path (DRB) from the simplified path (SRB1), enabling fast transmission for small data while maintaining full functionality when needed.
Solution Approach 2:
The patent applies partial action by implementing a simplified transmission mechanism that uses only the necessary components (SRB1) for small data packets, rather than always establishing the complete DRB path. This partial approach suffices for small data transmission scenarios, reducing overhead while maintaining adequate performance.
2Reliability
If the terminal generates a data radio bearer for uplink data transmission, then the data transmission can be established, but the radio resource usage increases unnecessarily
Solution Approach 1:
The patent extracts the data transmission function from the DRB and allows it to operate through the SRB1 for small packets. This separates the heavy DRB resource allocation from the lightweight SRB1 usage, enabling efficient radio resource utilization by matching the resource level to the data size requirement.
Solution Approach 2:
The patent changes the parameter of data transmission path selection based on data size. For small data packets, the system switches to using SRB1 instead of DRB, effectively changing the transmission parameter to optimize resource usage. This dynamic parameter adjustment ensures efficient radio resource allocation matched to actual transmission needs.
3Adaptability or versatility
If multiple terminals perform RRC connection setup and DRB generation simultaneously, then all terminals can transmit data, but the network load increases significantly
Solution Approach 1:
The patent extracts the data transmission function from the heavy DRB setup process, allowing terminals to use the lighter SRB1 path for small data packets. This extraction reduces the network load during simultaneous terminal connections by eliminating unnecessary DRB generation overhead while maintaining terminal connection capability.
Solution Approach 2:
The patent applies partial action by implementing simplified transmission for small data packets using SRB1, rather than requiring full DRB setup for all terminals. This partial approach reduces the network load during peak usage while maintaining adequate service for the majority of small data transmission scenarios.
Data Source
AI summary
Disclosed is a method of transmitting and receiving a small amount of uplink data. A method of transmitting uplink data includes detecting uplink data to be transmitted, determining whether or not uplink data transmission is necessary only once, transmitting a service request message including information instructing that a data radio bearer not be generated when it is determined that uplink data transmission is necessary only once, starting a radio resource control (RRC) connection setup process, and performing the uplink data transmission once using a signaling radio bearer without generating the data radio bearer with reference to the information instructing that the data radio bearer not be generated, during the RRC connection setup process, when it is determined that \ uplink data transmission is necessary only once.