WLAN Module Power Control in LTE Aggregation
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Solution Overview
Problem
The power consumption of user equipment (UE) using Long Term Evolution (LTE) and Wireless Local Area Network (WLAN) aggregation technology is high due to the need for multiple communication chips, necessitating energy-saving methods to reduce unnecessary power usage.
Innovation Solution
A method involving control instructions from base stations and access points to wake up and put the WLAN communications module of the UE into sleep mode when data transmission is not required, utilizing existing radio access technologies to manage power consumption effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication chips (LTE and WLAN) are used simultaneously to support LWA network architecture, then transmission capacity and network versatility are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic control of the WLAN communication chip by using control instructions from the base station to wake up the WLAN module only when data transmission is required, and to put it into sleep mode when transmission is not needed. This dynamic on-demand activation resolves the contradiction by making the system versatile when needed while conserving energy during idle periods.
Solution Approach 2:
The patent employs periodic wake-up and sleep cycles for the WLAN communication module based on transmission requirements. The module alternates between active and sleep states according to control instructions, achieving periodic operation that balances network versatility with power conservation.
2Productivity
If the WLAN communication module is kept active to ensure data transmission readiness, then transmission speed and reliability are improved, but unnecessary power consumption occurs
Solution Approach 1:
The base station sends control instructions in advance to wake up the WLAN communication module before data transmission begins. This preliminary action ensures the module is ready for immediate data transmission when needed, while allowing it to remain in sleep mode during idle periods, thus avoiding unnecessary power consumption.
Solution Approach 2:
The system uses feedback mechanisms where the base station monitors transmission requirements and sends control instructions to the mobile station to adjust the WLAN module's state accordingly. This feedback loop ensures the module is active only when transmission is required, optimizing both productivity and energy efficiency.
3Use of energy by moving object
If the WLAN module is frequently woken up and put to sleep to save energy, then power consumption is reduced, but system complexity and control overhead increase
Solution Approach 1:
The base station acts as an intermediary that manages the wake-up and sleep cycles of the WLAN module by sending control instructions. This centralized control simplifies the overall system architecture by having a single entity manage the power states, reducing the complexity burden on the mobile station while still achieving energy savings.
Data Source
AI summary
The present disclosure relates to a method for saving power consumption of a mobile station, and a mobile station, a base station, and an access point using the method. A method embodiment applicable to the mobile station of according to the present disclosure, including: in response to receiving a control instruction through a first radio access technology, waking up, according to the control instruction, a communications module applying a second radio access technology; and subsequently, in response to in response to receiving an indication frame through the second radio access technology, controlling the communications module to enter a sleep mode.