Wi-Fi Chip Mode Switching for Power Reduction
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Solution Overview
Problem
Wi-Fi devices experience high power consumption when operating in MIMO mode, which reduces battery life, especially when the uplink wireless network quality is poor.
Innovation Solution
A method and device that dynamically switch the Wi-Fi mode from MIMO to SISO based on the uplink wireless network's data rate and bandwidth, presetting the mode to SISO initially and switching to MIMO only when the uplink network meets certain quality thresholds, utilizing a radio frequency circuit, signal processor, and application processor to manage the Wi-Fi chip's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the Wi-Fi device operates in MIMO mode to achieve high data transmission rates, then the downlink rate is improved, but the power consumption increases significantly
Solution Approach 1:
The patent implements dynamic mode switching between MIMO and SISO based on real-time uplink network quality detection. The system transitions from a static default MIMO configuration to a dynamic adaptation mechanism that adjusts the Wi-Fi work mode according to current network conditions, thereby optimizing the balance between transmission rate and power consumption.
Solution Approach 2:
The system changes the operational parameters of the Wi-Fi chip by switching between different work modes (MIMO/SISO) based on detected uplink network parameters (data rate, bandwidth). This parameter-based decision-making allows the system to adapt its energy consumption and performance characteristics to match actual network capabilities.
2Speed
If the Wi-Fi device uses MIMO mode to match the high rate of LTE network, then the Internet surfing rate is improved, but the battery life is reduced
Solution Approach 1:
The patent implements dynamic mode switching between MIMO and SISO based on real-time uplink network quality detection. The system transitions from a static default MIMO configuration to a dynamic adaptation mechanism that adjusts the Wi-Fi work mode according to current network conditions, thereby optimizing the balance between transmission rate and power consumption.
Solution Approach 2:
The system changes the operational parameters of the Wi-Fi chip by switching between different work modes (MIMO/SISO) based on detected uplink network parameters (data rate, bandwidth). This parameter-based decision-making allows the system to adapt its energy consumption and performance characteristics to match actual network capabilities.
3Adaptability or versatility
If the Wi-Fi device is preset to MIMO mode upon startup, then the requirement of enabling multiple radio frequency paths is met, but the power consumption becomes relatively high
Solution Approach 1:
The patent applies preliminary action by presetting the Wi-Fi mode to SISO upon startup rather than MIMO. This initial configuration avoids unnecessary activation of multiple radio frequency paths until the system actually detects that the uplink network quality justifies MIMO operation, thereby preventing premature energy consumption while maintaining the capability to enable MIMO when needed.
Data Source
AI summary
An embodiment of the present invention discloses a Wi-Fi device, including a radio frequency circuit, a signal processor, an application processor, and a Wi-Fi chip. The application processor is configured to preset the work mode of the Wi-Fi chip to a single input single output SISO mode, and is further configured to acquire a value of a parameter of an uplink wireless network, and when the value of the parameter of the uplink wireless network is determined to be greater than or equal to a preset value, set the work mode of the Wi-Fi chip to a multiple-input multiple-output MIMO mode. An embodiment of the present invention further discloses a method for setting a communications mode. By applying the method for setting a communications mode and the Wi-Fi device disclosed in the embodiments of the present invention, the problem of relatively high power consumption of the device caused by enabling the MIMO mode when the quality of the uplink wireless network is poor is avoided.