Terminal Beam Reporting in RRC Inactive Small Data Transmission
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Solution Overview
Problem
Current communication systems face limitations in supporting efficient beam reporting during small data transmissions, particularly in idle or inactive states, leading to power consumption and signaling overhead issues due to the lack of effective beam management in RRC_INACTIVE states.
Innovation Solution
A communication method and device that enable beam information reporting by terminal devices under specific conditions, such as timer expiration or changes in beam quality, using contention-based random access procedures and indication information from network devices to optimize beam reporting and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam reporting is performed during small data transmission in idle or inactive states, then communication reliability is improved, but power consumption and signaling overhead increase
Solution Approach 1:
The patent implements dynamic beam reporting by triggering beam information transmission only when specific conditions are met (beam quality changes, timer expiration, or network device requests), rather than continuous reporting. This dynamic approach maintains communication reliability while significantly reducing power consumption during idle and inactive states.
Solution Approach 2:
The patent changes the reporting parameter from continuous to event-triggered based on beam quality thresholds and timer configurations. By monitoring beam quality parameters and comparing against thresholds, the system only initiates reporting when necessary, optimizing the trade-off between reliability and power consumption.
2Reliability
If beam reporting is performed during small data transmission in idle or inactive states, then communication reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent implements dynamic beam reporting by triggering beam information transmission only when specific conditions are met (beam quality changes, timer expiration, or network device requests), rather than continuous reporting. This dynamic approach maintains communication reliability while significantly reducing power consumption during idle and inactive states.
Solution Approach 2:
The patent applies partial action by reporting beam information only when necessary (event-triggered) rather than continuously. The system performs beam reporting partially based on specific conditions such as beam quality degradation, timer expiration, or network requests, thereby reducing overall signaling overhead while maintaining essential communication reliability.
3Reliability
If beam management is implemented in RRC_INACTIVE states, then beam adjustment timeliness is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring beam reporting parameters, thresholds, and timer values while the device is in connected state before transitioning to inactive state. This preliminary configuration enables the device to autonomously perform beam management in inactive state without real-time network control, improving beam adjustment timeliness while avoiding the complexity of real-time signaling.
Solution Approach 2:
The patent enables self-service beam management where the terminal device autonomously monitors beam quality, compares against pre-configured thresholds, and triggers reporting when conditions are met. This self-service mechanism allows beam management in RRC_INACTIVE state without requiring continuous network device involvement, thereby improving timeliness while minimizing device complexity.
Data Source
AI summary
A communication method includes: reporting, by a terminal device, beam information in a case that a first condition is met, in SDT.