Inactive State Data Transmission Priority Handling
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Solution Overview
Problem
In wireless communication systems, user equipment (UE) operating in an inactive state faces challenges in determining the appropriate procedure for transmitting pending data across multiple channels with different configurations, as existing methods do not clearly specify how to manage data transmission when priorities and channel configurations vary.
Innovation Solution
The UE receives configurations from the base station indicating priorities and transmission procedures for each channel, allowing it to select the appropriate procedure based on channel priorities and availability of configured grants (CGs) or random access resources, enabling efficient data transmission without transitioning to a connected state for lower-priority channels using small data transmission (SDT) techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE transmits pending data for multiple channels with different configurations, then data transmission completeness is improved, but procedure selection complexity increases
Solution Approach 1:
The patent applies parameter changes by utilizing channel priority values as a key parameter to resolve the procedure selection dilemma. When multiple channels have pending data, the UE compares their priority parameters and selects the transmission procedure based on the highest priority channel, thereby simplifying the decision-making process while ensuring complete data transmission across all channels.
2Reliability
If the UE transitions to connected state for data transmission, then data transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating transmission procedures based on channel priority. For high-priority channels, the UE transitions to connected state to ensure reliable transmission. For lower-priority channels, the UE uses inactive state procedures, thereby optimizing power consumption while maintaining necessary reliability for critical data.
Solution Approach 2:
The patent applies dynamics by making the transmission procedure adaptive rather than static. The UE dynamically selects between connected state and inactive state procedures based on real-time channel priority assessments, allowing the system to flexibly adjust power consumption levels according to the actual importance of the data being transmitted.
3Use of energy by moving object
If the UE uses inactive state procedures for all channels, then power consumption is reduced, but data transmission priority handling deteriorates
Solution Approach 1:
The patent resolves this contradiction by introducing channel priority as a decisive parameter. The UE compares priority parameters of different channels and selectively applies connected state procedures for high-priority channels while using inactive state procedures for lower-priority channels, thus maintaining both power efficiency and proper priority handling.
Data Source
AI summary
A method in a UE for communicating with a base station when the UE operates (702) in an inactive state associated with a protocol for controlling radio resources is disclosed. The UE is configured (i) to transmit data for a first channel using a first procedure that causes the UE to transition to a connected state associated with the protocol and (ii) to transmit data for a second channel using a second procedure that does not cause the UE to transition to the connected state. The method includes detecting (704) pending data addressed to the base station, the pending data including first data for the first channel and second data for the second channel. The method further includes selecting (706) the first procedure or the second procedure based on comparing a priority of the first channel to a priority of the second channel and transmitting (708) at least a portion of the pending data using the selected procedure.