LTE-WLAN Data Transmission Coordination via Buffer Status Reports
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Solution Overview
Problem
The increasing demand for multimedia services in wireless communication networks contradicts the limited authorized spectrum resources, leading to challenges in ensuring both speed and continuity of network services.
Innovation Solution
A data transmission method and device that allow terminals to coordinate with base stations to distribute data transmission between LTE networks and WLANs, using buffer status reports and UL Grants to determine and manage data transmission amounts across both networks, ensuring efficient use of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission is increased to meet growing multimedia service demands, then service speed and continuity are improved, but the limited authorized spectrum resources are overwhelmed
Solution Approach 1:
The patent combines LTE and WLAN transmission channels into a unified data transmission system. The terminal device simultaneously transmits data through both LTE network (via base station) and WLAN network (via access point), merging two different communication technologies to increase overall data transmission capacity without requiring additional spectrum resources beyond what is already allocated to each network
Solution Approach 2:
The terminal device is designed to perform multiple functions by supporting both LTE and WLAN communications simultaneously. It can dynamically select and switch between different transmission paths (LTE uplink or WLAN uplink) based on network conditions, making the device adaptable to various spectrum environments and transmission requirements
2Duration of action of moving object
If data transmission amount is increased to satisfy user demands, then service continuity is improved, but resource utilization efficiency deteriorates due to lack of coordinated management
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device reports buffer status information to the base station, and the base station responds by allocating uplink resources and providing transmission power control commands. This closed-loop feedback system ensures that data transmission is continuously adjusted based on actual buffer status and network conditions, maintaining service continuity while optimizing resource utilization
Solution Approach 2:
The system dynamically adjusts transmission parameters including data transmission amount, transmission power, and selected transmission path (LTE or WLAN). The terminal device can flexibly switch between different uplink transmission modes based on real-time network conditions, buffer status, and resource allocation commands, enabling adaptive resource utilization that maintains service continuity without waste
Data Source
AI summary
A data transmission method and device are provided. The method includes: receiving a BSR sent by a terminal; receiving information about a currently accessed WLAN AP sent by the terminal; determining, according to the information about the WLAN AP, the amount of data to be transmitted by the terminal through a LTE network; and sending a UL Grant to the terminal, so that the terminal may determine, according to the U Grant, the amount of data to be transmitted via the LTE network, and the then transmit data via the LTE network and a WLAN network.