Overlapping SL and UL Transmission Priority by Signal Type
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, UEs face challenges in determining which transmission to prioritize between overlapping sidelink (SL) and uplink (UL) transmissions, particularly when both are scheduled for the same time slot, especially in scenarios involving random-access procedures or reference signal transmissions.
Innovation Solution
A method is provided for prioritizing UL or SL transmissions based on their type, where UL transmissions like random-access procedures are prioritized by dropping or reducing the power of SL transmissions, and SL transmissions are prioritized by dropping or reducing the power of reference signal transmissions during overlaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE transmits both SL and UL transmissions in the same time slot, then communication productivity is improved, but transmission reliability deteriorates due to potential overlap and interference
Solution Approach 1:
The patent segments the transmission time slots to prevent overlap between SL and UL transmissions. By dividing the time domain into distinct slots for different transmission types, the system maintains high productivity while ensuring reliability through proper time separation.
Solution Approach 2:
The patent implements dynamic transmission slot allocation where the UE can flexibly adjust which slots are used for SL or UL transmissions based on real-time conditions. This dynamic approach allows the system to optimize both productivity and reliability by adapting to varying communication needs and network conditions.
2Reliability
If UL transmission is prioritized over SL transmission during overlap, then uplink communication reliability is improved, but sidelink communication productivity deteriorates
Solution Approach 1:
The patent implements dynamic prioritization where the UE can adjust transmission priorities based on real-time conditions. When UL transmission is prioritized, the system dynamically reallocates time slots to maintain uplink reliability while compensating for any sidelink productivity loss through flexible scheduling.
Solution Approach 2:
The patent changes transmission parameters such as time slot allocation and power levels dynamically. By adjusting these parameters based on the prioritization decision, the system can ensure uplink reliability while minimizing the impact on sidelink communication productivity through parameter optimization.
3Productivity
If SL transmission is prioritized over UL transmission during overlap, then sidelink communication productivity is improved, but uplink communication reliability deteriorates
Solution Approach 1:
The patent implements dynamic prioritization mechanisms that allow the system to switch between SL and UL transmission priorities based on real-time conditions. When SL transmission is prioritized to maximize productivity, the system dynamically adjusts scheduling to minimize uplink reliability impact.
Solution Approach 2:
The patent optimizes transmission parameters including time slot allocation and power levels dynamically. By changing these parameters based on prioritization decisions, the system can enhance sidelink productivity while maintaining uplink communication reliability through parameter optimization and real-time adjustment.
4Power
If transmission power is reduced for lower priority transmission during overlap, then power constraints are satisfied, but transmission quality deteriorates
Solution Approach 1:
The patent segments the transmission power allocation based on transmission priority. By dividing the total available power into distinct allocations for high-priority and low-priority transmissions, the system complies with power constraints while maintaining transmission quality for critical communications.
Solution Approach 2:
The patent dynamically changes transmission power parameters based on prioritization decisions. When one transmission type is prioritized, the system adjusts power levels accordingly, allocating more power to high-priority transmissions and reducing power for low-priority transmissions while maintaining quality through optimized power management.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for determining which transmission to prioritize between overlapping SL and UL transmissions. One apparatus includes a processor and a transceiver operable on an uplink channel and on a sidelink channel. The processor identifies a sidelink transmission and an uplink transmission planned for an overlapping time and determines a transmission type of the sidelink transmission and of the overlapping uplink transmission. The processor prioritizes the uplink transmission over the sidelink transmission in response to the transmission type of the uplink transmission being a random-access procedure message for a primary cell. The processor prioritizes the sidelink transmission over the uplink transmission in response to the transmission type of the uplink transmission being a reference signal transmission.