Wireless Display Adapter Power Management via Dual Radio Link
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Solution Overview
Problem
Current information handling systems face challenges in efficiently managing power consumption during wireless data communication, particularly when displaying static content or handling low data transfer rates, leading to increased energy usage and potential delays in mobile device connectivity.
Innovation Solution
The implementation of a wireless display network that dynamically manages power by establishing and terminating wireless data communication links based on data transfer needs, using a combination of data communication radios that can be turned on or off as required, and employing a predefined setup for instant-on capabilities in mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless data communication links are maintained continuously for display connectivity, then display availability and responsiveness are improved, but power consumption increases significantly
Solution Approach 1:
The system dynamically adjusts the state of wireless data communication links between active and terminated based on display content characteristics. When static content is detected, the link is terminated to save power; when dynamic content is detected, the link is established to ensure responsiveness. This dynamic adaptation resolves the contradiction by making the system state flexible rather than fixed.
Solution Approach 2:
The system changes the operational parameter of wireless communication links from continuously active to selectively active based on data transfer rate thresholds and content type analysis. By modifying the link state parameter according to actual usage conditions, the system achieves both power savings and maintained reliability when needed.
2Loss of energy
If wireless data communication links are terminated to save power during static content display, then power consumption is reduced, but connection establishment time and latency increase
Solution Approach 1:
The system performs preliminary actions by pre-configuring display parameters and maintaining a stand-by state for the display device. When the wireless link is terminated, the display remains in a quick-start configuration rather than completely powered down, enabling rapid reactivation. This preliminary preparation reduces the effective connection establishment time after power saving mode activation.
Solution Approach 2:
The system implements periodic monitoring of display content characteristics to determine when to establish or terminate wireless links. By using periodic sampling rather than continuous monitoring, the system balances power consumption with responsive link management, avoiding excessive latency while maintaining power efficiency.
3Reliability
If multiple data communication radios are used to ensure connectivity, then connection reliability and data transfer capability are improved, but device complexity and power management difficulty increase
Solution Approach 1:
The system segments the wireless communication function into multiple independent radios, each capable of operating autonomously. By segmenting the communication path into separate radio components, the system can selectively activate only the necessary radios based on connectivity requirements, reducing overall complexity while maintaining reliability through modular design.
Solution Approach 2:
The system implements feedback mechanisms that continuously monitor data transfer rates, content characteristics, and connectivity status to automatically adjust radio activation states. This feedback loop simplifies power management by removing the need for complex manual control, allowing the system to autonomously balance reliability and power consumption through adaptive decision-making.
Data Source
AI summary
A method for managing wireless data communication links includes establishing first and second wireless data communication links between a host system and a wireless display adapter. The first wireless data communication link is associated with a high data rate of data traffic between the host system and the wireless display adapter, and the second wireless data communication link is associated with a low data rate of data traffic. The method further includes determining that information is to be transmitted between the host system and the wireless display adapter using the low data rate, turning off a first data radio associated with the first wireless data communication link, and transmitting the information over the second wireless data communication link.