Uplink Beam Failure Reporting Across Multiple Component Carriers
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently reporting and managing uplink beam failures across multiple component carriers (CCs), particularly in 5G networks, which can lead to increased signaling overhead and latency.
Innovation Solution
The proposed solution involves a method for a user equipment (UE) to detect a failed uplink beam on one CC and report it to the network entity, allowing for the application of new uplink beams across multiple CCs, thereby reducing signaling overhead and latency by utilizing a single report for beam failure across all CCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual beam failure reports are sent for each component carrier, then beam failure detection accuracy is maintained, but signaling overhead increases and processing time increases
Solution Approach 1:
The patent merges beam failure reports from multiple component carriers into a single unified report structure. The UE includes a list of affected CCs and their respective beam failure information in one report, allowing the network to process beam failures across multiple carriers simultaneously without requiring separate report procedures for each carrier.
Solution Approach 2:
The beam failure report mechanism is designed to handle multiple component carriers universally. The report structure includes fields for indicating multiple affected CCs and applying beam reset procedures across all CCs, making the reporting mechanism applicable to any number of component carriers without requiring carrier-specific handling.
2Reliability
If individual beam reset procedures are executed for each component carrier, then beam recovery reliability is maintained, but processing time increases
Solution Approach 1:
The patent combines beam reset procedures into a single coordinated operation that applies to all affected component carriers simultaneously. The network entity receives the unified beam failure report and executes beam reset procedures across all listed CCs in one processing cycle, rather than handling each carrier sequentially.
Solution Approach 2:
The network entity prepares beam reset configurations in advance based on the unified report before executing the actual beam reset. The report includes pre-identified affected CCs and beam information, allowing the network to prepare reset parameters beforehand and then apply them efficiently across all carriers without delay.
Data Source
AI summary
Certain aspects of the present disclosure relate to methods and apparatus for updating beam information across a plurality of component carriers (CCs) via downlink control information (DCI).