Uplink Sidelink Transmission Priority and Power Control
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing the simultaneous transmission of uplink (UL) and sidelink (SL) communications, particularly in terms of resource allocation and power control, leading to potential interference and reduced performance.
Innovation Solution
The implementation of enhanced protocols and configurations for resource selection and power control in wireless devices and base stations, allowing for flexible bandwidth adaptation and simultaneous UL and SL transmissions, while prioritizing transmissions and adjusting power levels to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simultaneous UL and SL transmissions are enabled, then network efficiency and resource utilization are improved, but interference between transmissions increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting power levels for UL and SL transmissions based on channel conditions, buffer status, and priority configurations. The gNB configures power control parameters including P0_PUSCH, P0_PUCCH, and pathloss reference signals to optimize transmission power while minimizing interference between simultaneous UL and SL transmissions.
Solution Approach 2:
The patent implements dynamics through flexible resource allocation where the gNB can dynamically grant UL resources and configure SL resource pools based on real-time network conditions. The system adapts transmission parameters, power levels, and resource assignments dynamically to balance UL and SL transmissions while managing interference through continuous monitoring and adjustment.
2Productivity
If flexible bandwidth adaptation is implemented, then resource allocation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes through configurable bandwidth parts (BWPs) for both UL and SL transmissions. The gNB configures multiple BWPs with different bandwidths and numerologies, allowing the UE to adapt transmission bandwidth based on traffic requirements. This enables flexible resource allocation while managing device complexity through standardized configuration procedures.
Solution Approach 2:
The patent implements segmentation by dividing the available spectrum into multiple bandwidth parts (BWPs) that can be independently configured and activated. The gNB can configure separate BWPs for UL and SL transmissions, allowing selective activation based on traffic demands. This segmentation approach improves resource allocation efficiency while maintaining manageable device complexity through structured configuration.
3Reliability
If priority-based transmission scheduling is implemented, then transmission reliability is improved, but scheduling complexity increases
Solution Approach 1:
The patent applies parameter changes through priority-based resource allocation where the gNB configures priority levels for different logical channels and transmission types. The system adjusts scheduling parameters, power levels, and resource grants based on configured priorities, ensuring reliable transmission for high-priority traffic while managing scheduling complexity through standardized priority handling procedures.
Data Source
AI summary
A wireless device determines, among an uplink transmission with a first priority and a sidelink transmission with a second priority, to transmit the sidelink transmission based on the second priority being higher than the first priority. The wireless device transmits the uplink transmission based on determining to transmit the sidelink transmission and a failure of a listen-before-talk (LBT) procedure associated with the sidelink transmission.