eMBB UCI Delay for URLLC Conflict Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G communication systems, the conflict between eMBB and URLLC services during transmission leads to inefficient spectrum utilization due to the need to discard or stop eMBB service transmission when URLLC services require strict latency and reliability, resulting in reduced spectrum efficiency.
Innovation Solution
A method that determines whether eMBB service UCI conflicts with URLLC service data or UCI in transmission time, delaying eMBB service UCI transmission instead of discarding it, allowing for improved spectrum efficiency by avoiding unnecessary retransmissions of HARQ-ACK information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eMBB service UCI transmission is discarded or stopped when URLLC service arrives, then URLLC service reliability and latency requirements are met, but spectrum resource utilization deteriorates
Solution Approach 1:
The patent applies preliminary action by having the base station send downlink control information (DCI) in advance to schedule the eMBB service UCI transmission. This allows the system to prepare and coordinate transmission timing before conflicts occur, enabling the eMBB UCI to be transmitted in subsequent time slots without disrupting URLLC service while maintaining spectrum efficiency through proper scheduling.
2Speed
If eMBB service UCI transmission is delayed to URLLC service, then URLLC service latency requirements are met, but spectrum efficiency deteriorates due to unnecessary retransmissions
Solution Approach 1:
The patent applies feedback by having the base station send DCI that includes scheduling information for the eMBB service UCI transmission. This feedback mechanism allows the base station to control when the eMBB UCI should be transmitted, ensuring it occurs after the URLLC service without requiring retransmission, thus maintaining spectrum efficiency while meeting latency requirements.
3Reliability
If larger bandwidth is allocated to URLLC services, then latency and reliability requirements are met, but spectrum resource utilization deteriorates when no URLLC service arrives
Solution Approach 1:
The patent applies dynamics by implementing a flexible scheduling mechanism where the base station dynamically adjusts the transmission timing of eMBB service UCI based on URLLC service availability. When URLLC service is present, the eMBB UCI is scheduled for later time slots; when URLLC service is absent, the eMBB UCI can be transmitted in the original time slot, optimizing spectrum utilization while ensuring URLLC reliability when needed.
Data Source
AI summary
A service conflict processing method, a user terminal, and a computer-readable storage medium. The method comprises: determining whether UCI of an eMBB service currently being transmitted collides with data or UCI of an URLLC service with respect to transmission time, wherein the UCI of the eMBB service comprises HARQ-ACK information; and if the UCI of the eMBB service has collided with the data or the UCI of the URLLC service with respect to transmission time, delaying the transmission of the UCI of the eMBB service. The solution can be employed to improve spectral efficiency of the system.