Autonomous Beam Switching for Low-Overhead Wireless Recovery

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Solution Overview

Problem

The conventional beam selection process in wireless communication requires multiple signaling interactions, leading to long delays and potential beam failures due to high signaling overhead and unnecessary flexibility in beam switching.

Innovation Solution

The terminal device autonomously switches to a target beam or reports beam measurement results based on predefined conditions, reducing the need for network device intervention and minimizing signaling interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If the terminal device autonomously switches beams based on predefined conditions, then beam switching delay is reduced, but control reliability may be compromised

Engineering Contradiction:

Improvebeam switching delayVSAvoidcontrol reliability

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The network device pre-configures the terminal device with multiple beam failure recovery configurations and predefined conditions before beam switching is needed. This allows the terminal to immediately execute pre-planned beam switching actions when conditions are met, reducing delay while maintaining reliability through pre-validated configurations

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The terminal device monitors beam quality metrics (such as RSRP) and compares them against predefined thresholds, creating a feedback mechanism that triggers autonomous beam switching only when necessary. This ensures reliability by basing decisions on actual channel conditions while reducing unnecessary switching delays

Inventive Principle:

Principle #23Feedback

2Reliability

If multiple signaling interactions are used for beam switching, then control reliability is improved, but signaling overhead increases

Engineering Contradiction:

Improvecontrol reliabilityVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The terminal device is empowered to autonomously determine when beam switching is needed by evaluating predefined conditions locally, eliminating the need for continuous network device intervention and multiple signaling round-trips. This reduces signaling overhead while maintaining reliability through self-contained decision-making at the terminal

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The network device pre-configures beam failure recovery parameters, thresholds, and candidate beam information in advance, allowing the terminal to make autonomous switching decisions without requiring real-time network validation. This preliminary configuration reduces ongoing signaling overhead while ensuring network-controlled reliability

Inventive Principle:

Principle #10Preliminary action

3Quantity of substance

If the terminal device autonomously determines beam switching, then signaling overhead is reduced, but device complexity increases

Engineering Contradiction:

Improvesignaling overheadVSAvoiddevice complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The terminal device implements autonomous beam switching logic only for specific beam failure recovery scenarios using pre-configured parameters, rather than implementing general-purpose beam management complexity. This localized approach reduces overall device complexity by limiting autonomous decision-making to well-defined cases with predetermined rules

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP4712543A1Wireless communication method, terminal device, and network device

Publication Date: 2026.03.18 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

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Figure 4~7

AI summary

A wireless communication method, a terminal device, and a network device. The method comprises: if a first condition is satisfied, the terminal device executes a first operation, wherein the first operation comprises one of the following: switching from a serving beam to a target beam; and sending first information to a network device, wherein the first information comprises a beam measurement result.