Multi-Link Mode Switching for Millimeter Wave Power and Coverage

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Solution Overview

Problem

Existing millimeter wave communication technologies face challenges with high power consumption, signal attenuation, and limited coverage due to the use of single millimeter wave links, which are not effectively addressed by existing multi-link operation standards.

Innovation Solution

Implementing a method for link operation mode switching between millimeter wave and low-frequency links in multi-link devices, allowing for coordinated operation modes to manage and control data transmission efficiently, reducing power consumption and improving transmission efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If single millimeter wave links are used for communication, then transmission speed is improved, but power consumption increases and coverage is limited

Engineering Contradiction:
Improvetransmission speedVSAvoidpower consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic link operation mode switching between millimeter wave links and low-frequency links based on real-time communication needs and channel conditions. The system can transition between high-speed millimeter wave mode and power-efficient low-frequency mode, resolving the contradiction between transmission speed and power consumption by making the operating mode flexible rather than fixed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The multi-link device is designed to support multiple operation modes simultaneously - both millimeter wave links for high-speed transmission and low-frequency links for power-efficient communication. This multi-functionality allows a single device to serve multiple purposes: achieving high speed when needed while maintaining low power consumption during normal operation

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If millimeter wave links are used for communication, then transmission efficiency is improved, but signal attenuation increases and coverage is limited

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidsignal attenuation
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The low-frequency link serves as an intermediary backup communication path. When millimeter wave signals experience attenuation due to distance or obstacles, the system can switch to the low-frequency link which penetrates obstacles better and provides more reliable coverage, thus mitigating the harmful effect of signal attenuation while maintaining transmission efficiency through the millimeter wave link when conditions permit

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If multiple links are established for improved capability, then transmission reliability is improved, but device complexity increases

Engineering Contradiction:
Improvetransmission reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the communication system into distinct millimeter wave links and low-frequency links with separate operation modes. Each link type has dedicated management mechanisms, and the switching between modes is handled through standardized control procedures. This segmentation simplifies the overall system architecture by organizing complexity into manageable modules rather than requiring a monolithic complex system

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250365797A1Link operation mode switching method and apparatus, communication device, and storage medium
Publication Date: 2025.11.27 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US20250365797A1 patent drawing
  • US20250365797A1 patent drawing
  • US20250365797A1 patent drawing

AI summary

Disclosed is a method for link operation mode switching. The method is performed by a first device, and at least two links are established between the first device and a second device, the first device being an non-AP multi-link device, and the second device being an AP multi-link device. The method includes: receiving link operation mode switch information sent by the second device, where the link operation mode switch information is used for instructing at least one non-AP multi-link device to switch a link operation mode of a first link, the first link being one of the at least two links; and switching, according to the link operation mode switch information, the link operation mode of the first link between the first device and the second device in a case where the first device belongs to the at least one non-AP multi-link device.