NR-Light UE Control Resource Set Segmentation for DCI Detection
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Solution Overview
Problem
NR-Light UEs face challenges in handling communications due to their reduced bandwidth, which affects DCI detection and SIB1 reception, leading to degraded performance compared to legacy UEs.
Innovation Solution
Introducing a new control resource set (CORESET #0A) and search space (#0A) for NR-Light UEs, configured based on existing CORESET #0 and search space #0, to ensure successful DCI detection and SIB1 reception, while maintaining compatibility with legacy UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If NR-Light UEs use reduced bandwidth to lower device complexity and power consumption, then device complexity and power consumption are reduced, but DCI detection performance and SIB1 reception reliability deteriorate
Solution Approach 1:
The patent segments the control resource set by introducing a first control resource set specifically for NR-Light UEs with reduced bandwidth, separate from the second control resource set for legacy UEs. This segmentation allows NR-Light UEs to operate with reduced bandwidth (e.g., 5 MHz or 10 MHz) while maintaining reliable DCI detection through dedicated resource allocation in the first control resource set, resolving the contradiction between reduced device complexity and maintained reliability.
2Use of energy by moving object
If NR-Light UEs use reduced bandwidth to enable lower power consumption, then power consumption is reduced, but communication performance deteriorates
Solution Approach 1:
The patent applies local quality by configuring the first control resource set with specific parameters optimized for NR-Light UEs, including reduced bandwidth, adjusted numerology, and tailored search space configurations. This localized optimization ensures that NR-Light UEs achieve adequate communication performance (DCI detection and SIB1 reception) within their reduced bandwidth and power constraints, preventing performance degradation despite lower power consumption.
3Device complexity
If a single control resource set is used for both legacy UEs and NR-Light UEs, then device complexity is reduced, but adaptability to different UE types deteriorates
Solution Approach 1:
The patent achieves universality by maintaining two control resource sets that can serve different UE types simultaneously. The first control resource set is optimized for NR-Light UEs while the second serves legacy UEs, allowing the system to adapt to different UE capabilities and requirements. This multi-functional approach enables both UE types to operate effectively without requiring complex per-UE configuration, resolving the contradiction between simplicity and adaptability.
Data Source
AI summary
The present disclosure is related to a method and apparatus for wireless communication. A method performed by a user equipment, comprising: determining a first control resource set based on configuration information associated with a second control resource set; and determining a first search space based on configuration information associated with a second search space, wherein the first control resource set is associated with the first search space and the second control resource set is associated with the second search space.