Intra-Band Carrier Aggregation Beam Prioritization for SCC Signal Quality
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Solution Overview
Problem
Applying a primary component carrier (PCC) beam configuration to secondary component carriers (SCCs) in intra-band carrier aggregation can result in suboptimal signal quality due to differing optimal beam directions and interference, leading to reduced throughput and data rates.
Innovation Solution
A user equipment (UE) receives a configuration for prioritizing measurements of component carriers based on criteria such as the quantity of narrowband chains and applies different beam directions to SCCs with varying phase offsets and frequency distances relative to the PCC, optimizing beam management for SCCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a PCC beam configuration is applied to all SCCs in intra-band carrier aggregation, then device complexity is reduced and ease of operation is improved, but signal quality deteriorates due to differing optimal beam directions and interference
Solution Approach 1:
The patent applies different beam configurations to different component carriers based on their specific characteristics. SCCs are grouped into first and second groups with different beam directions, allowing each group to use optimized beam configurations tailored to their phase offset and frequency distance properties, thereby improving signal quality while maintaining manageable complexity through systematic grouping
Solution Approach 2:
The patent segments SCCs into multiple groups (first group and second group) based on their phase offset and frequency distance relative to the PCC. This segmentation allows independent beam configuration optimization for each group, resolving the contradiction by enabling differentiated beam management that improves signal quality without requiring completely independent configuration for every single SCC
2Productivity
If different beam directions are applied to SCCs with varying phase offsets and frequency distances, then throughput is enhanced by optimizing receive beams, but device complexity increases due to multiple beam configurations
Solution Approach 1:
The patent implements local quality optimization by assigning different beam directions to different SCC groups based on their specific channel characteristics (phase offset and frequency distance). This allows throughput optimization for each group while maintaining overall system manageability through the structured grouping approach, rather than requiring completely independent beam management for each SCC
Solution Approach 2:
The patent introduces dynamic beam configuration where beam directions are adjusted based on the specific characteristics of each SCC group. The system dynamically selects appropriate beam directions for first and second groups of SCCs based on their phase offset and frequency distance properties, enabling adaptive optimization that improves throughput while keeping complexity manageable through pattern-based configuration
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for prioritizing measurements of component carriers in accordance with one or more criteria. The UE may transmit, to a network node, a measurement report in accordance with the configuration, the measurement report including results from respective beam measurements performed on each of the component carriers. Numerous other aspects are described.