LTE-WLAN Aggregation Path Configuration for Uplink Congestion
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Solution Overview
Problem
In LTE-WLAN aggregation systems, terminals sending uplink data only through a mobile communication link cause congestion, affecting data transmission efficiency and performance.
Innovation Solution
The access network device configures and broadcasts path information to terminals, allowing them to send uplink data through a designated path that can include both LTE and WLAN links, thereby optimizing link usage and reducing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminals send uplink data only through mobile communication link, then transmission path is simple, but link congestion occurs and data transmission efficiency deteriorates
Solution Approach 1:
The patent segments the uplink transmission path into multiple independent links (mobile communication link and WLAN link) and assigns different path identifiers to different terminals. Terminals are divided into first terminals (using mobile link) and second terminals (using WLAN link) based on path information, thereby distributing traffic load and avoiding congestion on the mobile communication link.
2Productivity
If path information is configured for each terminal individually, then transmission path optimization is improved, but system complexity increases
Solution Approach 1:
The patent applies local quality by providing different path information configurations to different terminals based on their specific conditions. First terminals receive first path information indicating mobile communication link, while second terminals receive second path information indicating WLAN link. This localized configuration optimizes each terminal's transmission path without requiring complete system reconfiguration.
Solution Approach 2:
The access network device pre-configures path information in path information sets before terminals send uplink data. The path information indicating the sending path of uplink data is prepared in advance and provided to terminals through RRC connection reconfiguration signaling, eliminating the need for real-time path negotiation and reducing system complexity during actual data transmission.
3Productivity
If multiple transmission paths are supported, then data transmission efficiency improves, but path management complexity increases
Solution Approach 1:
The access network device acts as an intermediary that manages multiple transmission paths. It maintains path information sets containing path identifiers for different terminals, and provides appropriate path information through RRC signaling. This intermediary management simplifies path selection for terminals while enabling efficient use of multiple transmission paths (mobile link and WLAN link).
Data Source
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AI summary
The present invention relates to the field of communications, and provides an information delivery method, a data sending method, apparatus and system. The information delivery method comprises: an access network device configures path information for a terminal, an RRC connection being established between the access network device and the terminal, the path information being used for indicating a sending path for uplink data, and the sending path comprises a mobile communication link or a WLAN link; the access network device delivers the path information to the terminal, the terminal being configured to determine a target sending path for the uplink data according to the path information and sends the uplink data to the access network device according to the target sending path. Embodiments of the present invention enable a terminal to send uplink data on the basis of a sending path configured by an access network device and make full use of a mobile communication link and a WLAN link for data transmission, thereby avoiding congestion caused by using a single link, and improving uplink data transmission efficiency and the performance of a mobile communication system.