Wireless Device Duplex Configuration Switching for Multi-TRP Systems

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Solution Overview

Problem

Current wireless communication systems face challenges in efficiently switching between half duplex and full duplex configurations in multi-transmission reception point (TRP) systems, particularly in vehicle-to-vehicle (V2V) and device-to-device (D2D) communications, which affects spectral efficiency and communication efficiency.

Innovation Solution

A method and apparatus that enable a wireless device to detect the duplex configuration of nearby devices and adjust its own configuration to match, allowing communication based on the detected duplex mode, thereby optimizing spectral efficiency by switching between half duplex and full duplex operations as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a wireless device operates in full duplex mode, then communication efficiency is improved, but interference to nearby half duplex devices increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidinterference to nearby devices
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic duplex mode switching where the wireless device can transition between half duplex and full duplex modes based on real-time detection of nearby devices. The device monitors the vicinity for other wireless devices and automatically adjusts its duplex configuration to prevent interference, thereby resolving the contradiction between maintaining high communication efficiency and avoiding harmful interference to nearby devices.

Inventive Principle:
Principle #15Dynamics

2Productivity

If a wireless device switches between half duplex and full duplex modes, then spectral efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvespectral efficiencyVSAvoidduplex switching complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements self-service mechanisms where the wireless device autonomously performs duplex mode detection and switching without requiring complex external control systems. The device independently monitors nearby devices, determines appropriate duplex modes, and executes configuration changes automatically. This self-service approach improves spectral efficiency while minimizing the increase in device complexity by eliminating the need for complex centralized control infrastructure.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If a wireless device detects and adapts to nearby devices' duplex configuration, then communication compatibility is improved, but detection and measurement difficulty increases

Engineering Contradiction:
Improvecommunication compatibilityVSAvoidduplex configuration detection
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements feedback mechanisms where the wireless device monitors communication signals from nearby devices to detect their duplex configurations. By analyzing received signals and feedback information, the device determines whether nearby devices operate in half duplex or full duplex mode and adjusts its own configuration accordingly. This feedback-based detection approach improves communication compatibility while managing the complexity of detection through systematic signal analysis.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11929776B2Method and system for switching between half duplex and full duplex in multi-TRP systems
Publication Date: 2024.03.12 QUALCOMM INC
  • US11929776B2 patent drawing
  • US11929776B2 patent drawing
  • US11929776B2 patent drawing

AI summary

A configuration to allow a wireless device having one or more TRPs to configure the one or more TRPs based on configurations of other wireless devices. The apparatus detects a second wireless device in a vicinity of a first wireless device. The apparatus determines a duplex configuration of the second wireless device. The apparatus enables a duplex configuration of the first wireless device to correspond with the duplex configuration of the second wireless device. The apparatus communicates with the second wireless device based on the duplex configuration.