Multi-Link Mode Switching for mmWave Power and Coverage Tradeoffs
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Solution Overview
Problem
Existing millimeter-wave communication technologies face challenges such as significant signal attenuation, susceptibility to blockage, short coverage distance, and high power consumption, which are not adequately addressed by relying solely on millimeter-wave links.
Innovation Solution
A method for link operation mode switching between multi-link devices, allowing one multi-link device to send link operation mode switching information to another to switch the operation mode of a first link, enhancing flexibility in managing links and reducing power consumption by coordinating millimeter-wave and lower-frequency links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If millimeter-wave links are used for wireless communication, then transmission speed and bandwidth are improved, but signal attenuation and power consumption increase significantly
Solution Approach 1:
The patent implements dynamic link operation mode switching between different operational modes (e.g., millimeter-wave mode, sub-6GHz mode, and legacy mode) based on real-time channel conditions, device mobility, and quality of service requirements. This allows the system to adaptively transition between high-speed millimeter-wave operation and lower-power sub-6GHz operation, resolving the contradiction between transmission speed and power consumption
Solution Approach 2:
The patent changes operational parameters by switching between different frequency bands and link operation modes. When millimeter-wave signals experience excessive attenuation or blockage, the system transitions to sub-6GHz frequencies which have better propagation characteristics and lower power consumption, while maintaining acceptable transmission speeds through parameter adjustment
2Quantity of substance
If millimeter-wave links are used for wireless communication, then bandwidth capacity is improved, but coverage distance decreases
Solution Approach 1:
The patent segments the wireless communication system into multiple link operation modes operating at different frequency bands. Millimeter-wave links are used for short-range high-capacity segments, while sub-6GHz links provide extended coverage segments. This segmentation allows the system to achieve both high bandwidth capacity and extended coverage distance by combining different operational segments
Solution Approach 2:
The patent introduces sub-6GHz frequency bands as an intermediary solution between millimeter-wave and legacy communication modes. This intermediary frequency band provides a transition layer that extends coverage distance while maintaining reasonable bandwidth capacity, bridging the gap between high-capacity millimeter-wave and long-range legacy communications
3Adaptability or versatility
If multiple link operation modes are supported, then adaptability and versatility are improved, but device complexity increases
Solution Approach 1:
The patent implements a universal link operation mode switching mechanism that can operate across multiple frequency bands and operational modes using a common framework. The switching apparatus and methodology provide multi-functionality by handling millimeter-wave, sub-6GHz, and legacy modes through unified procedures, reducing device complexity despite supporting multiple operation modes
Solution Approach 2:
The patent employs feedback mechanisms where devices exchange capability information, operational status, and channel condition data to automatically determine optimal link operation modes. This feedback-driven approach simplifies device complexity by enabling autonomous mode selection without requiring complex manual configuration or centralized control
Data Source
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AI summary
A method and apparatus for link operation mode switching, a communication device, and a storage medium relate to the field of wireless communication technology. The method is executed by a first device. At least two links are established between the first device and a second device. The first device and the second device are multi-link devices. The method includes the following. Link operation mode switching information is sent to the second device (601), where the link operation mode switching information indicates to switch a link operation mode of a first link, and the first link is one of the at least two links. The link operation mode of the first link between the first device and the second device is switched according to the link operation mode switching information (602).