Wireless Signal Transmission for Small Data in RRC Inactive State
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in performing wireless signal transmission and reception procedures, particularly in managing small data transmissions (SDT) due to suboptimal resource configurations and conditions for switching to radio resource control (RRC) inactive states.
Innovation Solution
A method and apparatus for wireless communication systems that involve receiving SDT configuration information, switching to an RRC inactive state, and triggering random access channel (RACH) based on predefined conditions, including quality of service thresholds and resource measurements, to efficiently transmit SDT data using UE-specific and SDT dedicated preambles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system uses conventional wireless signal transmission procedures, then the communication service can be provided, but the efficiency of wireless signal transmission and reception is low
Solution Approach 1:
The system performs preliminary actions by pre-configuring SDT resources and pre-establishing RACH configurations before actual data transmission is needed. This allows the UE to quickly transition to inactive state and perform efficient SDT without going through lengthy connection setup procedures, thereby improving transmission efficiency and reducing time loss.
2Productivity
If the system optimizes resource configurations for small data transmissions, then the handling of SDT is improved, but the device complexity increases
Solution Approach 1:
The system segments resource configuration into distinct components: SDT-specific resources, RACH resources, and conventional resources. This segmentation allows independent optimization of SDT handling without affecting other communication functions, improving SDT efficiency while managing complexity through modular configuration management.
Solution Approach 2:
The system applies local quality by providing specialized configurations specifically for SDT scenarios (such as SDT-specific RACH preambles and resources) rather than optimizing all resources uniformly. This targeted approach improves SDT handling efficiency while avoiding the complexity of reconfiguring the entire system.
3Device complexity
If the system uses suboptimal resource configurations, then the device complexity is reduced, but the efficiency of small data transmissions deteriorates
Solution Approach 1:
The system extracts SDT-specific resource requirements from the conventional resource configuration framework. By separating SDT resources (such as dedicated preambles, specific RACH occasions, and SDT-configured grants) from general-purpose resources, the system achieves simple yet efficient SDT handling with minimal impact on overall system complexity.
Data Source
AI summary
Various embodiments of the present disclosure relate to a next-generation wireless communication system for supporting high data transfer rates beyond the 4th generation (4G) wireless communication system. According to the various embodiments, a method of transmitting and receiving signals in a wireless communication system and apparatus for supporting the same may be provided.