LTE-WLAN Aggregation Terminal Power Management
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting the increasing data traffic demands with higher transmission rates, linked devices, low latency, and energy efficiency, particularly in managing data transmission and reception across licensed and unlicensed bands efficiently.
Innovation Solution
The method involves LTE-WLAN aggregation, where a terminal transmits status information to an access point to activate the wireless LAN module only when necessary, using a specific packet structure to manage data transmission and reception through both licensed and unlicensed spectra, optimizing power consumption and network data handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless LAN module is activated continuously to ensure data transmission capability, then data transmission reliability is improved, but power consumption increases
Solution Approach 1:
The base station sends a wake-up indication message to the access point before actual data transmission is needed, allowing the wireless LAN module to be activated in advance only when necessary, rather than continuously. This preliminary action ensures transmission reliability is maintained when needed while avoiding continuous power consumption.
Solution Approach 2:
The wireless LAN module transitions from a static always-on state to a dynamic state that can be activated or deactivated based on actual data transmission needs. The module is activated dynamically when the base station determines data transmission is required and deactivated when no data needs to be transmitted, optimizing the balance between reliability and power consumption.
2Loss of energy
If the wireless LAN module is deactivated to reduce power consumption, then energy efficiency is improved, but data transmission capability deteriorates
Solution Approach 1:
The base station monitors the data transmission status and provides feedback by sending wake-up indication messages to the access point when data needs to be transmitted. This feedback mechanism ensures the wireless LAN module is activated only when actually needed, maintaining data transmission capability while improving energy efficiency during idle periods.
Solution Approach 2:
The system uses the low-power receiver (always-on component) to monitor for wake-up indications and automatically trigger activation of the high-power wireless LAN module only when necessary. This self-service mechanism allows the system to maintain transmission capability on demand while minimizing energy consumption during idle states.
3Productivity
If both licensed and unlicensed bands are used simultaneously for data transmission, then network data capacity is improved, but system complexity increases
Solution Approach 1:
The patent combines licensed band (LTE) and unlicensed band (WLAN) resources into a unified LTE-WLAN aggregation system. The base station coordinates both bands through a unified control mechanism, merging their capabilities to increase overall network data capacity while managing complexity through centralized control rather than separate independent systems.
Solution Approach 2:
The base station is designed with multi-functionality to manage both licensed and unlicensed band transmissions through a single entity. It can selectively activate either band or both simultaneously based on data transmission requirements, providing universal data transmission capability across different frequency bands while avoiding the complexity of completely separate control systems.
Data Source
AI summary
Disclosed herein is a method for transmitting and receiving data using an LTE-WLAN aggregation in a wireless communication system. The method performed by a terminal comprises transmitting status information to an access point (AP), receiving a specific packet for indicating an activation of the wireless LAN module from the AP, activating the wireless LAN module based on the specific packet, transmitting a response message indicating that the wireless LAN module is activated in response to the specific packet to the AP, and receiving downlink data through an unlicensed spectrum using the LTE-WLAN aggregation from AP.