LTE-U Wi-Fi Coexistence Timing Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The coexistence of LTE-U and Wi-Fi communication protocols using the same frequency band leads to interference, causing deterioration in the performance of Wi-Fi modules due to signal noise and interference, particularly when both protocols share the same radio frequency module.
Innovation Solution
A method is implemented to adjust the timing of data packet transmission in electronic devices to avoid overlap with scheduled intervals of other communication protocols, using scheduling information from both LTE-U and Wi-Fi protocols to ensure non-interfering transmission and reception of data packets, thereby reducing in-device coexistence interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE-U and Wi-Fi modules use the same frequency band simultaneously, then communication versatility is improved, but signal interference and performance deterioration occur
Solution Approach 1:
The patent implements periodic time-division multiplexing where the Wi-Fi module transmits data packets during specific intervals (e.g., during LTE-U downlink reception periods) and the LTE-U module transmits during other intervals. This periodic scheduling allows both protocols to share the same frequency band without simultaneous transmission, thereby eliminating signal interference while maintaining communication versatility
Solution Approach 2:
The patent dynamically adjusts transmission timing based on real-time scheduling information from both Wi-Fi and LTE-U protocols. The electronic device monitors upcoming transmission intervals from both protocols and adaptively selects optimal transmission moments for each protocol, allowing flexible resource allocation that prevents interference while maximizing channel utilization
2Productivity
If data packet transmission intervals overlap between Wi-Fi and LTE-U modules, then communication efficiency is improved, but interference and reception failures occur
Solution Approach 1:
The patent obtains scheduling information from both Wi-Fi and LTE-U protocols in advance and performs preliminary analysis to identify potential transmission conflicts. By predicting future transmission intervals before they occur, the system can proactively adjust timing to prevent overlapping transmissions, ensuring both high efficiency and reliable reception without actual interference
Solution Approach 2:
The patent continuously monitors transmission and reception status of both protocols and uses this feedback to dynamically adjust future transmission timing. When interference or reception issues are detected, the system modifies subsequent transmission schedules to avoid similar conflicts, creating a self-optimizing mechanism that maintains both efficiency and reliability
Data Source
AI summary
An electronic device includes a first communication module, a second communication module, a memory, a processor configured to be electrically connected with the first communication module and the second communication module, and a memory. The processor is configured to verify a first data packet to be transmitted via the first communication module. The processor is also configured to obtain scheduling information of a second data packet received via the second communication module. The processor is also configured to adjust a time when transmission of the first data packet is started, based on the scheduling information.