Multi-RAT Wireless Device Power Management via Secondary Module Offloading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The coexistence of multiple radio access technologies (RATs) in wireless communication systems leads to varying power consumption levels in radio nodes, and the combined use of multiple RATs can significantly impact power efficiency, necessitating a solution to optimize power usage without compromising performance.
Innovation Solution
A wireless communication device is designed with multiple RAT modules, where one module can perform a subset of functions on behalf of another, allowing for low-power operation and reducing overall power consumption by dynamically coordinating which module handles specific tasks based on defined conditions, such as battery level or communication activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple RAT modules are actively used simultaneously, then communication coverage and service quality are improved, but power consumption increases dramatically
Solution Approach 1:
The patent segments the functionality of RAT modules by dividing them into primary RAT modules and secondary RAT modules. Each RAT module handles specific functions independently, allowing the system to activate only the necessary modules for current communication needs, thereby reducing overall power consumption while maintaining service quality.
Solution Approach 2:
The patent implements cross-RAT functionality where a secondary RAT module can perform functions of a primary RAT module and vice versa. This multi-functionality allows the system to use a single active RAT module for multiple communication tasks, reducing the need to keep multiple RAT modules simultaneously active and thus lowering power consumption.
2Use of energy by moving object
If a single RAT module is used to reduce power consumption, then power efficiency is improved, but communication coverage and service quality may be compromised
Solution Approach 1:
The patent implements dynamic RAT module activation where the system can switch between using a single RAT module for power saving and activating multiple RAT modules when coverage or service quality requirements demand it. The activation state of RAT modules is dynamically adjusted based on current communication conditions, battery status, and service requirements.
Solution Approach 2:
The patent introduces a RAT module manager that acts as an intermediary to coordinate between primary and secondary RAT modules. This manager determines when to activate additional RAT modules to ensure adequate coverage and service quality while minimizing power consumption, effectively mediating between power efficiency requirements and communication reliability needs.
3Speed
If RAT modules are kept in active mode for quick response, then response time is improved, but power consumption increases
Solution Approach 1:
The patent implements preliminary setup where secondary RAT modules are pre-configured with necessary functionality and can be quickly activated when needed. This pre-preparation allows the system to switch from power-saving mode to active mode rapidly without requiring full initialization, thus maintaining fast response time while reducing idle power consumption.
Solution Approach 2:
The patent employs periodic monitoring and activation of RAT modules based on communication activity patterns. Instead of keeping modules continuously active, the system periodically assesses the need for additional RAT functionality and activates modules only during periods when their services are required, thereby reducing overall power consumption while maintaining responsiveness.
Data Source
AI summary
A wireless communication device (12) is configured for use in a wireless communication system (10). The wireless communication device (12) comprises a first radio access technology, RAT, module (18-1) configured to perform functions relating to a first RAT. The wireless communication device (12) also comprises a second RAT module (18-2) configured to perform functions relating to a second RAT and perform a subset (22-1S) of the functions relating to the first RAT on behalf of the first RAT module (18-1). In some embodiments, the first RAT module (18-1) is configured to operate in a low-power mode, a sleep mode, or a disabled mode when the second RAT module (18-2) handles performance of the subset (22-1S) of the functions relating to the first RAT on behalf of the first RAT module (18-1).