Beam Update Application Timing in Wireless Scheduling

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Solution Overview

Problem

Current wireless communication technologies, such as LTE and 5G, face challenges in efficiently managing beam updates within the timing constraints of scheduled transmissions, leading to potential delays in applying beam updates before the scheduled transmission time, which can impact communication quality and efficiency.

Innovation Solution

The method involves determining the application time of beam updates between Downlink Control Information (DCI) scheduling and the scheduled transmission, and deciding whether to apply the beam update based on a minimum duration requirement, which can be fixed or dependent on UE capability and subcarrier spacing, ensuring timely application of beam updates for improved communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If beam updates are applied immediately upon receiving signaling, then beam update speed is improved, but transmission reliability deteriorates due to timing conflicts with scheduled transmissions

Engineering Contradiction:

Improvebeam update speedVSAvoidtransmission reliability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system determines the application time of beam updates in advance by comparing it with the scheduled transmission time. If the application time falls before the scheduled transmission, the beam update is postponed to ensure it does not interfere with the transmission, thus maintaining transmission reliability while still applying updates timely.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If beam updates are postponed to avoid timing conflicts, then transmission reliability is improved, but beam update timeliness deteriorates

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidbeam update delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system dynamically adjusts the beam update application time based on the scheduled transmission timing. By evaluating whether the application time conflicts with scheduled transmissions, the system flexibly determines the optimal application time, applying updates as soon as possible without compromising transmission reliability.

Inventive Principle:

Principle #15Dynamics

3Productivity

If beam updates are applied without timing checks, then beam update efficiency is improved, but communication quality deteriorates due to timing conflicts

Engineering Contradiction:

Improvebeam update efficiencyVSAvoidcommunication quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system incorporates feedback mechanisms by continuously monitoring the relationship between beam update application times and scheduled transmission times. This feedback loop enables the system to make informed decisions about when to apply beam updates, ensuring that efficiency is maintained while communication quality is preserved through conflict avoidance.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11601965B2Applied beam updated before a triggered transmission time

Publication Date: 2023.03.07 QUALCOMM INC

AI summary

Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining when to apply beam updates. A method that may be performed by a user equipment (UE) includes receiving signaling indicating a beam update, determining an application time of the beam update occurs between a downlink control information (DCI) scheduling a transmission and the scheduled transmission, and deciding whether to apply the beam update to the scheduled transmission.