Wireless Forwarding Node Timing Adjustment for Multi-Hop Synchronization

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Solution Overview

Problem

Current wireless communication systems face challenges in maintaining synchronization and reducing interference across multi-hop networks, particularly in extending coverage and enabling communication between nodes that are outside of standard wireless communication range.

Innovation Solution

A wireless forwarding node is configured to operate with multiple timing reference configurations, allowing it to adjust and fine-tune transmit and receive timing references autonomously or based on commands from a control node, thereby enhancing synchronization and reducing interference across the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wireless forwarding nodes use fixed timing reference configurations, then network synchronization is maintained, but the number of supported hops and coverage extension are limited

Engineering Contradiction:
Improvenetwork synchronizationVSAvoidnumber of supported hops
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic timing reference configurations that allow wireless forwarding nodes to adjust their timing references based on the number of hops and network conditions. Each forwarding node can determine its own timing reference configuration autonomously or receive adjustments from control nodes, enabling the network to support multiple hops while maintaining synchronization through adaptive rather than fixed timing parameters.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If timing references are adjusted to extend coverage, then the number of hops increases, but timing synchronization accuracy deteriorates

Engineering Contradiction:
Improvecoverage extensionVSAvoidtiming synchronization accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent segments the timing reference adjustment process into hierarchical levels: control nodes determine coarse timing adjustments for forwarding nodes, while forwarding nodes autonomously refine their own timing references. This segmentation allows coverage extension through multiple hops while maintaining synchronization accuracy at each level through distributed timing management rather than a single centralized adjustment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements feedback mechanisms where control nodes monitor timing synchronization status and send adjustment commands to forwarding nodes when necessary. Forwarding nodes also autonomously monitor and adjust their own timing references based on received signals, creating a feedback loop that maintains timing synchronization accuracy even as the network extends coverage through additional hops.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If autonomous timing adjustment is enabled at forwarding nodes, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improvetiming adjustment flexibilityVSAvoidforwarding node complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent enables forwarding nodes to autonomously determine their own timing reference configurations by processing received signals and calculating appropriate timing adjustments. This self-service capability allows forwarding nodes to adapt to network conditions without requiring constant control node intervention, improving flexibility while the modular autonomous function keeps the complexity increase manageable through standardized procedures.

Inventive Principle:
Principle #25Self-service

4Object-affected harmful factors

If multiple timing reference configurations are used, then interference is reduced, but device complexity increases

Engineering Contradiction:
Improveinterference reductionVSAvoidtiming configuration complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent assigns different timing reference configurations to different wireless forwarding nodes based on their specific network positions and interference conditions. Each node uses a timing reference optimized for its local environment rather than a universal configuration, reducing interference through localized optimization while the standardized timing reference framework keeps overall system complexity manageable.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12028823B2Timing adjustment for wireless remote units
Publication Date: 2024.07.02 QUALCOMM INC
  • US12028823B2 patent drawing
  • US12028823B2 patent drawing
  • US12028823B2 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless forwarding node may determine a first timing reference configuration for communicating with a first wireless node. The wireless forwarding node may determine a second timing reference configuration for communicating with a second wireless node. The wireless forwarding node may forward communications between the first wireless node and the second wireless node based at least in part on the first timing reference configuration and the second timing reference configuration. Numerous other aspects are provided.