CSI Report Prioritization for URLLC and eMBB Resource Collisions
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Solution Overview
Problem
CSI reports in wireless communications systems often collide, leading to inefficiencies due to overlapping resource usage, particularly when ultra-reliable low latency communication (URLLC) services are interspersed with enhanced mobile broadband (eMBB) services.
Innovation Solution
The UE determines a priority ranking for CSI reports based on reliability and latency parameters, prioritizing URLLC services over eMBB services by using explicit or implicit signaling from the network or internal configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CSI reports are transmitted without priority differentiation, then all CSI reports are treated equally, but resource collisions occur and URLLC service requirements are not met
Solution Approach 1:
The patent applies local quality by differentiating the treatment of CSI reports based on their associated service type. URLLC-related CSI reports are given higher priority and transmitted with higher reliability, while eMBB-related CSI reports use standard transmission procedures. This selective differentiation resolves the contradiction by ensuring URLLC reliability without wasting resources on equally important reports.
Solution Approach 2:
The patent changes the priority parameter of CSI reports based on service type associations. By modifying the priority level parameter according to whether the report is linked to URLLC or eMBB services, the system achieves both high reliability for critical URLLC reports and efficient resource utilization by not over-prioritizing all reports uniformly.
2Reliability
If priority-based CSI report selection is implemented, then URLLC service reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the UE to autonomously determine priority rankings based on pre-configured service type associations. The UE automatically identifies which CSI reports correspond to URLLC services and applies higher priority without requiring complex external control or manual configuration, thus improving reliability while limiting complexity growth.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the UE with service type associations and priority rules before actual CSI report transmission occurs. This advance setup allows the UE to automatically handle priority differentiation during operation without requiring complex real-time decision-making, thereby improving URLLC reliability while keeping device complexity manageable.
3Ease of manufacture
If all CSI reports use the same transmission resources, then resource allocation is simple, but time loss occurs due to collisions and retransmissions
Solution Approach 1:
The patent segments the CSI report transmission process into different priority classes. By dividing reports into high-priority (URLLC) and standard-priority (eMBB) categories, the system enables simpler resource allocation for critical reports while reducing time loss through prioritized transmission, avoiding collisions and retransmissions of URLLC reports.
4Reliability
If URLLC CSI reports are always prioritized, then service reliability is improved, but eMBB service performance deteriorates
Solution Approach 1:
The patent applies partial action by prioritizing only the subset of CSI reports associated with URLLC services, rather than all CSI reports uniformly. This selective prioritization ensures URLLC reliability is improved while eMBB services maintain adequate resource allocation and performance, avoiding excessive action that would harm overall system productivity.
Data Source
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AI summary
Techniques are described herein for determining a priority ranking for channel state information (CSI) reports based at least in part on a reliability parameter, a latency parameter, or both of resources allocated to a user equipment (UE). In some wireless communications systems, ultra reliable low latency communication (URLLC) services may be interspersed with enhanced mobile broadband (eMBB) services. The UE may perform a CSI report prioritization procedure to account for reliability parameters, latency parameters or both. In some cases, CSI reporting for resources associated URLLC services may receive higher priority than CSI reporting for eMBB services. The UE may be configured to determine reliability parameters and/or latency parameters based on signaling received from the network or from determining changes to one or more configurations of the UE. In some cases, the priority ranking of the CSI report may be based at least in part on a slot set identifier.