HSIO Power Saving Control via Dynamic Speed Switching
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Solution Overview
Problem
Conventional high-speed input/output (HSIO) systems consume excessive power regardless of data transmission speed due to fixed transmission speed modes, leading to increased power consumption even at low data transmission rates, as seen in newer generations like USB3.0, SATA 6G, and PCIe 5G, which do not dynamically adjust power usage based on actual data transmission speeds.
Innovation Solution
The HSIO system dynamically switches transmission speed modes based on actual data transmission speeds, with a main processor estimating the transmission speed and selecting the most power-efficient mode from multiple options, either prioritizing performance or power consumption, to minimize power usage by configuring the physical layer through an interface controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the HSIO system uses a fixed high transmission speed mode, then the data transmission speed is improved, but the power consumption increases significantly
Solution Approach 1:
The patent implements dynamic transmission speed mode switching, allowing the HSIO system to adaptively change between different transmission speed modes (e.g., USB 2.0 high speed, USB 3.0 super speed, or lower speed modes) based on actual data transmission requirements. This resolves the contradiction by making the transmission speed configurable rather than fixed, enabling the system to use high speed modes only when necessary and switch to lower power modes when high speed is not required.
Solution Approach 2:
The patent changes the transmission speed parameter dynamically based on actual data transmission speeds and power consumption requirements. By monitoring the actual data transmission speed and comparing it with the rated transmission speed of different modes, the system selects the most appropriate transmission mode, thereby optimizing the balance between transmission speed and power consumption.
2Speed
If the HSIO system uses a higher generation transmission mode, then the rated transmission speed is improved, but the power consumption increases disproportionately
Solution Approach 1:
The patent applies partial action by using only the necessary transmission speed capability required for the actual data transmission task. Instead of always operating at the maximum rated speed of the highest generation mode, the system selectively activates only the transmission speed level that is sufficient for the current data transmission requirements, thereby avoiding excessive power consumption while maintaining adequate performance.
3Productivity
If the HSIO system operates in high speed mode, then the transmission capability is improved, but the power consumption increases even when actual transmission speed is low
Solution Approach 1:
The patent implements a feedback mechanism that monitors the actual data transmission speed and compares it with the rated transmission speed of the current mode. Based on this feedback, the system dynamically adjusts the transmission mode to match the actual requirements. This ensures that the system does not consume high power in high speed mode when the actual transmission speed is low, as it will switch to a more appropriate lower power mode based on the monitored feedback.
Data Source
AI summary
A high speed input/output (HSIO) system and a power saving control method for the HSIO system are provided. The HSIO system has a plurality of transmission speed modes. When an external device is connected to the HSIO system and an auto-configuration link is completed, the power saving control method forcibly sets an interface controller to any desired transmission speed specification in accordance with an actual transmission speed of to-be-transmitted data. Therefore, transmission speed mode of a single physical layer can be changed to achieve a low power transmission.