Frame Timing Realignment for Flexible Wireless Alignment

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Solution Overview

Problem

Current methods for establishing frame timing alignment in mobile, wireless communication networks face challenges in aligning diverse frame structures, particularly in integrated communication and sensing applications using single carrier and multi-carrier OFDM, leading to design restrictions and potential interference.

Innovation Solution

A method and apparatus that receive a timing realignment indication message to determine a timing reference point, enabling improved frame alignment and reducing interference in time division duplexing applications, while supporting diverse frame/symbol/numerology schemes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If frame timing alignment is established based on respective frames (slots/symbols) for integrated communication and sensing, then communication and sensing can operate simultaneously, but design restrictions are imposed and interference occurs

Engineering Contradiction:

Improveframe structure flexibilityVSAvoidinterference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the frame timing alignment into two independent parts: communication frame timing and sensing frame timing. Each can be aligned separately to their respective references without requiring mutual alignment, allowing flexible frame structures while avoiding interference between communication and sensing operations

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a timing realignment indication message as an intermediary mechanism that enables dynamic adjustment of timing relationships. This mediator allows the system to adapt timing alignment based on actual operational requirements while maintaining overall system coordination and preventing interference

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If timing realignment is performed dynamically, then frame alignment accuracy is improved, but synchronization procedures duration increases

Engineering Contradiction:

Improveframe alignment accuracyVSAvoidsynchronization duration

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary timing alignment configuration through the timing realignment indication message before actual data transmission begins. This preliminary action establishes the timing reference point in advance, allowing for rapid dynamic realignment without extending the overall synchronization procedure duration

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The timing realignment indication message provides feedback information about the desired timing relationship, enabling the receiving device to automatically adjust its timing without requiring lengthy synchronization procedures. The feedback mechanism allows precise alignment while maintaining efficiency

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260046801A1System and scheme for timing indication for frame timing

Publication Date: 2026.02.12 HUAWEI TECH CO LTD

AI summary

In accordance with implementations, an apparatus may receive a timing realignment indication message and use information included in the message to determine a timing reference point. By transmitting with timing based on the timing reference point, the apparatus may achieve improved frame alignment. The timing realignment indication message may be provided to the apparatus as part of communication to a plurality of such apparatus or as part of communication that is specifically directed to the apparatus.