Common Beam Update Timing for DCI-Scheduled Wireless Communications
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Solution Overview
Problem
Current wireless communications systems lack signaling or rules to determine when a UE should implement updates to a common beam indicated by a DCI message, leading to uncertainty and potential inefficiencies in beam management.
Innovation Solution
Configuring beam update configurations that define a timing for updating a common beam in relation to DCI messages, allowing UEs to perform beam switching procedures accordingly, either before or after scheduled communications based on processing time thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam update configurations are configured to enable efficient beam updates, then resource utilization improves, but device complexity increases due to additional configuration parameters and processing requirements
Solution Approach 1:
The patent applies parameter changes by introducing configurable beam update timing parameters (e.g., K0, K1, K2 values) that define when beam updates occur relative to DCI messages. These parameters allow the system to optimize beam update timing based on specific operational requirements, improving resource utilization while providing flexibility to manage complexity through standardized parameter sets.
Solution Approach 2:
The patent implements dynamics by making beam update configurations dynamic rather than static. The beam update timing and behavior can be adjusted based on traffic conditions, channel state, and network requirements. This allows the system to adapt beam update strategies in real-time, improving resource utilization while the standardized dynamic framework helps manage complexity through predictable adjustment patterns.
2Reliability
If beam switching procedures are performed frequently to maintain optimal beam alignment, then communication reliability improves, but processing time increases due to repeated beam switching operations
Solution Approach 1:
The patent applies periodic action by establishing regular beam update intervals through configured timing parameters. Instead of continuous or ad-hoc beam switching, the system performs beam updates at predetermined periodic intervals defined by the beam update configuration. This maintains reliable beam alignment while reducing overall processing time by eliminating unnecessary intermediate switching operations.
Solution Approach 2:
The patent implements preliminary action by performing beam updates in advance based on predicted channel conditions and configured timing parameters. The system proactively updates beams before degradation occurs, ensuring communication reliability without requiring reactive frequent switching. This advance preparation reduces processing time by preventing last-minute beam switching under time pressure.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive control signaling indicating a beam update configuration that defines a timing for updating a common beam for communications with the UE in relation to a communication and in response to a downlink control information (DCI) message that schedules the communication and indicates an update to the common beam. In some aspects, the common beam is shared across a set of channels, a set of reference signals, or both. The UE may then receive, from a base station, the DCI message that schedules the communication and indicates the update to the common beam. The UE may then perform at least one beam switching procedure to update the common beam at the UE based on receiving the DCI message and in accordance with the beam update configuration.