5G NR Reference-Point Scheduling for Multi-Cell Resources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the 5G NR system, the existing design for scheduling multiple cells using one DCI fails to determine corresponding transmission or feedback resources, and high-band symbol shortening complicates processing time, leading to increased downlink signaling overheads and reduced system capacity.
Innovation Solution
A resource determining method that involves obtaining indication information of reference points through higher layer signaling, pre-defined signaling, or control signaling to determine target resources for data and feedback transmissions, ensuring sufficient processing time and reducing signaling overheads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If one DCI schedules multiple CCs to reduce downlink control signaling overheads, then signaling overhead is reduced, but transmission or feedback resource determination becomes uncertain
Solution Approach 1:
The patent introduces reference points as intermediary elements that mediate between the DCI and the target resources. These reference points serve as anchor locations that enable reliable resource determination even when multiple CCs are scheduled by a single DCI. The reference points provide a common reference framework that resolves the uncertainty in resource allocation across multiple component carriers.
2Productivity
If SCS increases to improve bandwidth utilization on high band, then spectral efficiency is improved, but symbol duration shortens reducing processing time
Solution Approach 1:
The patent resolves the time-duration constraint by introducing an additional dimensional resource (frequency domain resources or spatial resources) to compensate for the reduced time available for processing. Instead of being constrained solely by symbol duration, the system can allocate resources across multiple dimensions, allowing sufficient processing time while maintaining high spectral efficiency through increased SCS.
3Area of stationary object
If low band carriers are deployed to improve coverage, then coverage is improved, but bandwidth is insufficient and signaling overhead increases
Solution Approach 1:
The patent combines multiple CCs into a single scheduling entity (one DCI scheduling multiple CCs), which reduces the overall signaling overhead. By merging the control functions for multiple component carriers into a single DCI message, the system achieves more efficient resource utilization on low band carriers while maintaining improved coverage area.
Data Source
AI summary
A resource determining method and a device are provided. The method includes: obtaining indication information of one or more reference points of a target resource; and determining the target resource according to the indication information.