Wi-Fi Receiver Chain Switching Based on RSSI for Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power saving methods for Wi-Fi receiver chips require complex processing at upper layers and involve signal exchanges between transmitter and receiver, leading to inefficient power management.
Innovation Solution
A receiver module selectively switches Wi-Fi receiver chains between 'ON' and 'OFF' states based on signal quality parameters, primarily using RSSI levels, to conserve power without requiring additional signal exchanges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wake-up scheduling method is used to save power, then power consumption is reduced, but device complexity increases due to comprehensive processing steps at both transmitter and receiver
Solution Approach 1:
The patent segments the receiver chains into multiple independent units, each capable of being independently controlled in ON or OFF states. This allows selective activation of only necessary receiver chains based on signal quality, reducing overall power consumption while avoiding the need for complex comprehensive processing at both ends.
Solution Approach 2:
The patent implements dynamic control of receiver chain states by continuously monitoring signal quality parameters and adjusting the number of active receiver chains accordingly. This dynamic adaptation enables the system to optimize power consumption in real-time without requiring complex predetermined scheduling protocols.
2Use of energy by moving object
If SM power save mode is used to reduce power consumption, then power consumption is reduced, but device complexity increases due to additional processing requirements
Solution Approach 1:
The receiver chains are divided into separatable units that can be independently managed. This segmentation allows the system to activate only the minimum necessary number of receiver chains based on current signal conditions, reducing power consumption while simplifying processing requirements compared to SM power save mode.
Solution Approach 2:
The system performs self-assessment of signal quality and automatically adjusts the number of active receiver chains without requiring complex external coordination or additional processing steps at the transmitter side, thereby reducing power consumption while maintaining simplicity.
3Use of energy by moving object
If receiver chains are turned off to save power, then power consumption is reduced, but signal throughput may be affected
Solution Approach 1:
The system continuously monitors signal quality parameters and uses this feedback to dynamically adjust the number of active receiver chains. This feedback mechanism ensures that enough receiver chains remain active to maintain adequate signal throughput while minimizing power consumption by turning off unnecessary chains.
Solution Approach 2:
The number of active receiver chains is dynamically adjusted based on real-time signal quality assessment. When signal quality is high, fewer chains are needed and can be turned off to save power; when signal quality degrades, more chains are activated to maintain throughput, thus balancing power consumption and signal throughput.
Data Source
AI summary
A receiver module that is communicatively connected to a plurality of Wi-Fi receiver chains is disclosed. The receiver module is configured to selectively switch the states of a plurality of Wi-Fi receiver chains between an “ON” state and an “OFF” state based on a signal quality parameter measured by each of these receiver chains.