Portable Terminal Wi-Fi P2P Power Saving NoA Adjustment
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Solution Overview
Problem
Portable terminals in Wi-Fi Peer-to-Peer (P2P) mode face challenges in optimizing data transmission performance during power saving modes, as the existing methods for setting sleep duration and interval of Notice of Absence (NoA) information are not well-defined, leading to suboptimal power consumption and data transmission efficiency.
Innovation Solution
An apparatus and method that include a power management unit to calculate the minimum time for data transmission, determine the data transmission section, and adjust the sleep duration of NoA information based on packet transmission rates and speeds, allowing for dynamic adjustment of the sleep duration to enhance data transmission performance and power saving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the sleep mode time is increased to save power, then power consumption is reduced, but data transmission performance deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of the NoA period based on actual data transmission needs. The system transitions from a fixed sleep schedule to a flexible mechanism where the NoA period is extended or shortened according to whether data transmission is required, allowing the terminal to adapt between power saving and performance modes in real-time
Solution Approach 2:
The patent changes the parameter of NoA period from a static value to a dynamic variable that can be adjusted based on transmission requirements. By modifying the NoA period parameter according to actual data traffic conditions, the system optimizes the balance between power consumption and data transmission performance
2Loss of energy
If the sleep duration is extended to save more power, then energy efficiency improves, but the data transmission time is reduced
Solution Approach 1:
The patent implements a feedback mechanism where the system monitors data transmission requirements and adjusts the NoA period accordingly. When data transmission is needed, the NoA period is shortened to ensure sufficient transmission time; when no transmission is needed, the period is extended to maximize power saving, creating a closed-loop control system
Solution Approach 2:
The patent uses the opportunity period to pre-transmit data before the terminal enters sleep mode. By anticipating the need for data transmission and completing it during the wake period, the system ensures that data is delivered before the terminal goes to sleep, avoiding transmission delays while maintaining power savings
Data Source
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AI summary
A portable terminal for providing a Wi-Fi Peer-to-Peer (P2P) function is provided. An apparatus and a method of a portable terminal for enhancing a data transmission performance by adjusting a Notice of Absence (NoA) duration in a NoA-based power saving mode are provided. The apparatus includes a communication unit for receiving Notice of Absence (NoA) information for a power saving mode, a control unit for controlling a client of a group to enter the power saving mode based on the NoA information, and a power management unit for generating the NoA information for the power saving mode.