LTE-WLAN Shared Band Packet Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems, such as LTE-LAA and WLAN, inefficiently utilize shared frequency bands due to time-varying traffic loads and varying user numbers, leading to suboptimal performance when there is low traffic demand or fewer users.
Innovation Solution
A method and system that enable wireless communication via both LTE and WLAN communication channels in a shared frequency band, allowing a radio network access node to distribute data packets using LTE for one channel and WLAN for another, and a wireless communication device to receive and combine packets from both channels, optimizing resource usage based on traffic demand and user capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single RAT (e.g., LTE-LAA or WLAN) is used for data transmission in a shared frequency band, then the system structure is simple and ease of operation is maintained, but resource utilization efficiency deteriorates when traffic demand is low or user numbers are few
Solution Approach 1:
The patent combines multiple Radio Access Technologies (LTE-LAA and WLAN) into a single communication system that operates in the shared frequency band. The radio network access node integrates both LTE and WLAN interfaces, allowing data packets to be distributed across multiple communication channels simultaneously, thereby improving frequency band utilization efficiency while maintaining operational simplicity through unified resource management
Solution Approach 2:
The radio network access node is designed with multi-functionality to support both LTE-LAA and WLAN transmissions in the same frequency band. This universal design allows the system to adapt to varying traffic conditions by dynamically selecting and switching between different RATs, ensuring high resource utilization efficiency across different operational scenarios while preserving ease of operation through a single multi-functional device
2Productivity
If multiple RATs (LTE and WLAN) are used simultaneously for data transmission in a shared frequency band, then frequency band utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent introduces a packet distribution mechanism that acts as an intermediary between the data source and multiple communication channels. This intermediary component intelligently distributes data packets across LTE and WLAN channels based on current traffic conditions and channel availability, thereby achieving high frequency band utilization efficiency while managing device complexity through centralized intelligent control rather than distributed complexity
3Productivity
If carrier aggregation is used in LTE to combine licensed and unlicensed spectrum, then transmission capacity is improved, but the changes required for aggregation increase device complexity
Solution Approach 1:
The patent segments the transmission capacity enhancement into two independent parts: licensed spectrum (PCell) and unlicensed spectrum (SCell). Each segment operates with its own radio access technology and resource management, allowing transmission capacity to be improved through spatial and spectral separation while reducing device complexity by avoiding the need for complex aggregation mechanisms. The segmented approach enables independent optimization of each transmission path
Data Source
AI summary
A method of wireless communication via a first and a second communication channel in a frequency band shared between a first and second radio access technology comprising: a radio network access node distributing data packets for transmission via the first or the second communication channel, the radio network access node transmitting data packets via the first communication channel according to the first radio access technology in said shared frequency band, the radio network access node transmitting data packets via the second communication channel according to the second radio access technology in said shared frequency band, wherein the second radio access technology differs from the first radio access technology.