Simplified MIMO Features for RedCap NR User Equipment
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Solution Overview
Problem
Current 5G NR technologies face challenges in supporting Reduced Capability (RedCap) NR User Equipments (UEs) with lower complexity and power consumption, while maintaining network resource utilization, spectral efficiency, and operation efficiency.
Innovation Solution
The implementation of simplified Multiple Input Multiple Output (MIMO) features and operations for RedCap NR UEs, including reduced antenna support, streamlined transmission configuration indicators, and limited beam sweeping capabilities, to minimize device complexity and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simplified MIMO features are implemented for RedCap NR UEs, then device complexity and power consumption are reduced, but network resource utilization and spectral efficiency may be impacted
Solution Approach 1:
The patent applies parameter changes by introducing configurable MIMO parameters such as maximum MIMO layers, antenna ports, and beam sweeping configurations that can be adjusted based on UE capability. This allows the system to optimize between device complexity and network performance by selecting appropriate parameter values for different UE types, including RedCap devices.
Solution Approach 2:
The patent implements dynamics through dynamic indication mechanisms where the network can signal and adjust MIMO configuration parameters in real-time based on channel conditions, UE capability, and network load. This enables flexible adaptation of MIMO operations to balance device complexity requirements with network resource utilization needs.
2Use of energy by moving object
If simplified MIMO features are implemented for RedCap NR UEs, then power consumption is reduced, but system spectral efficiency may be impacted
Solution Approach 1:
The patent uses parameter changes to configure MIMO operations with appropriate complexity levels for RedCap UEs. By adjusting parameters like maximum MIMO layers and antenna ports based on UE power capabilities, the system reduces power consumption while maintaining acceptable spectral efficiency through optimized parameter selection.
Solution Approach 2:
The patent applies partial action by implementing simplified MIMO operations for RedCap UEs that perform a subset of full MIMO capabilities. This partial implementation reduces power consumption and device complexity while the network compensates through resource allocation strategies to maintain overall system spectral efficiency.
3Productivity
If full MIMO capabilities are supported in NR, then network performance is optimized, but device complexity and cost increase
Solution Approach 1:
The patent implements parameter changes by introducing capability indication mechanisms where UEs report their MIMO support levels, and the network configures appropriate MIMO parameters accordingly. This allows full MIMO capabilities to be utilized when available while providing simplified configurations for devices with reduced capabilities, optimizing the balance between network performance and device complexity.
Solution Approach 2:
The patent applies universality by designing a unified MIMO framework that can accommodate multiple UE capability levels. The same basic MIMO infrastructure serves both full-capability UEs and RedCap UEs, with flexible parameter configuration enabling the system to adapt to different device complexity requirements while maintaining network performance where possible.
Data Source
AI summary
Among other things, embodiments of the present disclosure are directed to the support of a new class of Reduced Capability (RedCap) New Radio (NR) user equipments (UEs), focusing on the simplification of various multiple input multiple output (MIMO) related features and operations. Other embodiments may be disclosed and/or claimed.