Uplink Transmission Prioritization in Wireless Devices
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Solution Overview
Problem
Current wireless communication systems face challenges in enhancing uplink transmission, particularly for ultra-reliable low-latency communications and in unlicensed control environments, where existing technologies struggle to optimize performance and efficiency.
Innovation Solution
The implementation of advanced protocols and configurations within the wireless device and base station, including bandwidth part adaptation, beam management, and logical channel prioritization, to enhance uplink transmission efficiency and reliability in 5G NR and LTE technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing wireless communication technologies are used for uplink transmission, then basic communication functionality is maintained, but transmission reliability and efficiency are insufficient for ultra-reliable low-latency communications and unlicensed control environments
Solution Approach 1:
The patent implements dynamic bandwidth part adaptation where the wireless device adjusts the bandwidth part configuration based on channel conditions and transmission requirements. This dynamic adjustment allows the system to optimize between reliability and efficiency by selecting appropriate bandwidth parts for different transmission scenarios, thereby resolving the contradiction between maintaining high reliability and achieving high transmission efficiency.
Solution Approach 2:
The patent changes key transmission parameters including bandwidth part configuration, logical channel prioritization weights, and beam management parameters. By dynamically adjusting these parameters based on channel conditions and service requirements, the system can shift between reliability-optimized and efficiency-optimized modes, resolving the technical contradiction between uplink transmission reliability and efficiency.
2Productivity
If bandwidth is increased to improve transmission efficiency, then data rate increases, but system complexity and resource management difficulty increase
Solution Approach 1:
The patent segments the available bandwidth into multiple bandwidth parts (BWPs), each with specific characteristics optimized for different transmission scenarios. This segmentation allows the system to manage complexity by handling smaller, well-defined bandwidth segments rather than managing the entire wide bandwidth at once, while still achieving high transmission efficiency when needed by activating multiple BWPs or using wideband BWPs.
Solution Approach 2:
The patent implements dynamic bandwidth part adaptation where the wireless device and base station coordinate to adjust active bandwidth parts based on channel conditions and transmission requirements. This dynamic approach simplifies resource management by activating only the necessary bandwidth parts for current transmission needs, reducing management complexity while maintaining high transmission efficiency when required.
3Reliability
If multiple logical channels are prioritized to improve reliability, then transmission reliability increases, but processing complexity and resource allocation difficulty increase
Solution Approach 1:
The patent applies different prioritization weights and resource allocation strategies to different logical channels based on their specific requirements. Instead of uniform handling, each logical channel receives customized prioritization treatment appropriate to its service type and reliability needs. This local quality approach improves overall reliability while managing complexity by handling each channel according to its specific characteristics rather than implementing a complex unified management system.
Data Source
AI summary
A wireless device may determine to deprioritize an initial transmission and retransmission(s) of a SR. In response to an overlap between a scheduled initial transmission of a TB and a scheduled retransmission of the SR, the wireless device may determine whether to prioritize the scheduled initial transmission of the TB or the scheduled retransmission of the SR based on a total number of the initial transmission and the retransmission(s) of the SR and may perform an uplink transmission based on the determination.