WLAN Bearer Control via Base Station Traffic Steering
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Solution Overview
Problem
Current wireless communication technologies face challenges in selecting and controlling Wireless Local Area Network (WLAN) nodes for offloading user equipment (UE) data, leading to issues such as small WLAN coverage, re-association difficulties, high workload in managing WLAN networks, unknown WLAN nodes, and unclear Quality of Service (QoS) control.
Innovation Solution
A method and apparatus for controlling a WLAN bearer, where a base station receives and processes information about WLAN nodes, UE capabilities, and aggregation conditions to instruct UE for traffic steering between an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) and WLAN, reducing manual configuration workloads and maintaining data continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual configuration methods are used for WLAN node selection and control, then system complexity is reduced, but productivity and ease of operation deteriorate due to high workload
Solution Approach 1:
The base station automatically discovers WLAN nodes and performs self-configuration without manual intervention. The system obtains WLAN information through automatic discovery mechanisms, selects appropriate WLAN nodes based on predefined criteria, and configures bearers autonomously, eliminating the need for manual configuration while reducing workload.
Solution Approach 2:
The base station pre-obtains WLAN information including identifiers, capabilities, and QoS parameters before actual data transmission begins. This preliminary gathering and processing of WLAN node information enables rapid automated decision-making and configuration when needed, improving both ease of operation and productivity.
2Productivity
If automated WLAN node discovery and selection is implemented, then productivity and ease of operation improve, but device complexity increases
Solution Approach 1:
The automated WLAN control function is segmented into distinct modular components: WLAN information acquisition module, WLAN node selection module, and bearer configuration module. Each module performs a specific function independently, making the overall complex system manageable through functional decomposition and reducing implementation complexity.
Solution Approach 2:
The base station acts as an intermediary that manages the complexity of WLAN node discovery and selection, shielding higher-level applications from these complexities. The base station automatically handles WLAN information gathering, node evaluation, and bearer setup, presenting a simplified interface to users while managing system complexity internally.
3Productivity
If WLAN aggregation is used to increase throughput, then productivity improves, but device complexity and loss of information increase due to multiple WLAN nodes
Solution Approach 1:
Multiple WLAN nodes are merged into a unified aggregation bearer managed by the base station. The base station combines resources from multiple WLAN nodes to create a single logical data transmission path, increasing throughput while managing complexity through unified control. Data can be transmitted through multiple physical nodes but appears as a single aggregated connection to the UE.
Solution Approach 2:
The system implements feedback mechanisms where the base station continuously monitors WLAN node performance, bearer status, and data transmission quality. Based on this feedback, the base station dynamically adjusts aggregation parameters, selects optimal WLAN nodes, and reconfigures bearers to maintain high throughput while managing complexity through adaptive control.
4Adaptability or versatility
If traffic steering between E-UTRAN and WLAN is implemented, then adaptability improves, but device complexity and loss of information increase due to dual network management
Solution Approach 1:
The system implements dynamic traffic steering where the base station continuously evaluates network conditions, UE capabilities, and service requirements to automatically switch traffic between E-UTRAN and WLAN. This dynamic adaptation provides versatility in network selection while managing complexity through automated decision-making algorithms that adjust routing in real-time based on current conditions.
Data Source
AI summary
A method for controlling a wireless local area network (WLAN) bearer is provided. The method includes a base station receives information including at least one of WLAN information of a WLAN node, WLAN aggregation response information, WLAN aggregation update response information, WLAN aggregation update information and a WLAN capability of UE. According to the received information, the base station instructs the UE to perform traffic steering between an E-UTRAN and the WLAN, or instructs the UE to perform control processing for the EUTRAN and WLAN aggregation. By using the present disclosure, efficiency of WLAN bearer control is improved.