Adaptive UE Beam Measurement Resource Allocation
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Solution Overview
Problem
Current UE beam measurement capabilities in NR are static and do not adapt to configuration changes, leading to increased complexity and power consumption, especially in multi-carrier and multi-connectivity scenarios, necessitating a more efficient approach to manage beam measurements.
Innovation Solution
Implementing adaptive beam measurement capabilities by identifying the type of serving carrier and allocating resources accordingly, allowing the UE to adjust its beam measurement capacity based on its configuration, such as the number of carriers, coverage level, and activity level, thereby optimizing complexity, power consumption, and processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static beam measurement capabilities are used in NR, then measurement consistency is maintained, but device complexity and power consumption increase in multi-carrier scenarios
Solution Approach 1:
The patent implements dynamic beam measurement capability where the UE adapts its measurement behavior based on current configuration. The network configures beam measurement parameters adaptively according to the number of carriers and UE capability, allowing the system to transition from static to dynamic operation. This resolves the contradiction by enabling measurement consistency through controlled adaptation rather than rigid static rules.
Solution Approach 2:
The patent changes key parameters such as the number of beams to measure, measurement frequency, and resource allocation based on the number of configured carriers and UE capability. When fewer carriers are configured, the UE measures fewer beams and reduces measurement frequency, directly adapting parameters to system conditions. This parameter adaptation resolves the contradiction between maintaining measurement quality and reducing complexity.
2Device complexity
If adaptive beam measurement capability is implemented, then device complexity is reduced, but measurement precision may deteriorate
Solution Approach 1:
The patent applies different measurement configurations to different carriers based on their specific requirements. Each carrier can have customized beam measurement parameters including number of beams, measurement frequency, and resource allocation. This local optimization ensures that measurement precision is maintained for each carrier while avoiding unnecessary complexity in the overall system.
Solution Approach 2:
The patent implements partial beam measurement where the UE measures a subset of available beams rather than all beams. The number of beams to measure is configured based on UE capability and network requirements. This partial action approach maintains sufficient measurement precision for network operation while significantly reducing device complexity and power consumption.
3Loss of information
If beam measurements are performed on all configured carriers, then measurement completeness is improved, but power consumption increases
Solution Approach 1:
The patent extracts and prioritizes the most critical beam measurements from the full set of available measurements. Based on carrier importance, traffic conditions, and UE capability, the system selects essential beams to measure on each carrier. This extraction approach maintains measurement completeness for critical carriers while eliminating redundant measurements on less important carriers, thereby reducing power consumption.
Solution Approach 2:
The patent implements periodic beam measurement where the UE performs measurements at configured intervals rather than continuously. The measurement period and frequency are adapted based on carrier type, traffic conditions, and mobility state. This periodic action ensures measurement completeness when needed while reducing power consumption during stable conditions, resolving the contradiction between completeness and energy usage.
Data Source
AI summary
A method by a wireless device is provided for controlling adaptive beam measurement capability. The method includes identifying a type of serving carrier of a serving cell and allocating at least one resource for beam measurement based on the type that was identified.