Cellular WLAN Aggregation Bearer Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current cellular/WLAN radio interworking technologies, particularly in LTE systems, face challenges in efficiently managing cellular/WLAN aggregation, leading to suboptimal control and data transmission efficiency due to differences from cellular/WLAN radio interworking technology introduced in Release 12.
Innovation Solution
A user terminal and access point system that supports efficient control for cellular/WLAN aggregation by sending and receiving configuration messages to establish data bearers, using both cellular and WLAN communications, with conditions such as connection quality, interference levels, and access point availability to determine data transmission paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cellular/WLAN aggregation is implemented to improve data transmission efficiency, then data transmission efficiency is improved, but device complexity increases due to managing multiple communication paths and configuration messages
Solution Approach 1:
The patent segments the data transmission system into two distinct bearers: a first data bearer for cellular communication and a second data bearer for WLAN communication. This segmentation allows independent management and optimization of each communication path, reducing the complexity of managing aggregated communications by treating them as separate, controllable entities rather than a monolithic system.
Solution Approach 2:
The base station acts as an intermediary that coordinates between the cellular network and WLAN network. It sends requests to WLAN nodes, receives responses, and transmits configuration messages to user terminals, thereby mediating the complex interactions between two different communication systems and simplifying the overall management architecture.
2Reliability
If configuration messages are exchanged between base station and WLAN node to optimize aggregation control, then network performance is improved, but loss of time occurs due to multiple message exchanges before establishing data bearers
Solution Approach 1:
The base station sends a request to the WLAN node to establish a data bearer before the user terminal actually needs to transmit data through the aggregated connection. This preliminary action ensures that the WLAN path is pre-configured and ready, reducing the time delay that would otherwise occur during actual data transmission when configuration is needed.
Solution Approach 2:
The WLAN node sends a response message back to the base station indicating whether the data bearer establishment was successful. This feedback mechanism allows the base station to make informed decisions about whether to proceed with configuration messages to the user terminal, optimizing the control process by avoiding unnecessary message exchanges and reducing overall setup time.
Data Source
AI summary
A communication system supporting cellular communication Wireless Local Area Network (WLAN) communication comprises a base station, a user terminal configured to establish a first data bearer between the base station and the user terminal, and a node of WLAN side. The base station sends a request of the WLAN communication to the node before establishing a second data bearer between the base station and the user terminal, the node receives the request and sends a response, the base station transmits configuration message on configuration of aggregation in which the cellular communication and the WLAN communication are used to communicate data of the user terminal to the user terminal in response to the response being an acknowledgment, the first data bearer passes through the base station without passing through the WLAN, and the second data bearer is a bearer for the aggregation and passes through the base station and the WLAN.