Beam Failure Recovery Resource Allocation Orthogonality
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in beam failure recovery procedures, leading to increased resource requirements and computational complexity, which can result in higher power consumption and reduced system performance.
Innovation Solution
The implementation of a beam failure recovery (BFR) medium access control control element (MAC CE) that allocates specific resources for beam failure recovery, allowing for orthogonality in resource allocation and reducing the number of unique BFR resources needed, thereby minimizing computational complexity and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure recovery procedures are performed without resource allocation orthogonality, then beam failure recovery can be initiated, but resource allocation conflicts increase computational complexity and power consumption
Solution Approach 1:
The patent segments the beam failure recovery resources into orthogonal sets assigned to different cells. Each cell is assigned a dedicated set of resources (time-frequency resources, preambles, or physical random access channels) that do not overlap with other cells. This segmentation eliminates resource allocation conflicts and reduces computational complexity by allowing independent resource management in each cell.
2Adaptability or versatility
If more unique BFR resources are allocated to support more cells, then resource allocation coverage increases, but power consumption and computational complexity increase
Solution Approach 1:
The patent implements a universal resource allocation mechanism where a single BFR MAC CE can assign resources to multiple cells using orthogonal resource sets. The same resource allocation framework serves multiple cells simultaneously through orthogonal division, eliminating the need for separate resource allocation procedures for each cell and thereby reducing overall power consumption and computational complexity.
3Adaptability or versatility
If beam failure recovery resources are not uniquely assigned to cells, then resource utilization flexibility improves, but resource allocation conflicts occur reducing system efficiency
Solution Approach 1:
The patent introduces an orthogonal dimension to resource allocation by assigning resources across multiple dimensions (time, frequency, code space) in a way that ensures orthogonality between cells. Resources are allocated not just in a single dimension but across multiple orthogonal dimensions, allowing flexible resource utilization while preventing conflicts through the orthogonality constraint.
Data Source
AI summary
Wireless communications are described. A wireless device and/or a base station may provide improved resource management. A base station may configure and/or transmit a beam failure recovery medium access control control element (BFR MAC CE) to a wireless device to activate one or more beam failure reference signal resources for beam failure of a downlink bandwidth part (BWP) of a cell. The wireless device may assess, based on receiving the BFR MAC CE, a radio link quality of one or more reference signals for beam failure detection of the downlink BWP of the cell.