Link Control Node for MPTCP Sublink Management
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Solution Overview
Problem
The Multipath Transmission Control Protocol (MPTCP) lacks centralized management and control, leading to suboptimal radio resource allocation and performance in wireless networks, as the status of MPTCP links cannot be adjusted to meet system requirements, and existing performance algorithms do not achieve the best optimization in wireless networks.
Innovation Solution
A link control node and method that identifies and adjusts MPTCP sublinks based on radio resource and link quality status, sending indication messages to communication parties to perform adjustments such as stopping, deleting, or prioritizing sublinks according to preset conditions and operator management policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MPTCP protocol is used for end-to-end multilink communication, then network bandwidth is increased through resource sharing, but centralized management and control of MPTCP connections is lacking
Solution Approach 1:
The patent introduces a network controller as an intermediary device that centrally manages and controls MPTCP connections between user equipment and destination nodes. The network controller receives MPTCP connection information from communication parties, determines link adjustment policies based on network status, and sends adjustment commands to modify MPTCP sublink configurations. This intermediary resolves the contradiction by providing the missing centralized management capability while preserving the bandwidth benefits of MPTCP.
2Productivity
If MPTCP protocol optimizes communication party performance, then end-to-end communication efficiency is improved, but radio resources cannot be appropriately allocated
Solution Approach 1:
The patent implements a feedback mechanism where the network controller continuously monitors network status information including radio resource conditions and link quality metrics. Based on this feedback, the controller dynamically adjusts MPTCP link configurations by selecting sublinks to activate, deactivate, or modify. This feedback loop enables appropriate radio resource allocation while maintaining the communication efficiency benefits of MPTCP.
3Productivity
If performance algorithm in MPTCP protocol is used, then communication performance is optimized, but best optimization in wireless network cannot be achieved
Solution Approach 1:
The patent extends the optimization from the end-to-end communication dimension to include the network infrastructure dimension. While MPTCP protocol optimizes performance at the application layer between communication parties, the network controller operates at the network layer to optimize radio resource allocation, link selection, and subflow management. This multi-dimensional approach achieves comprehensive optimization that neither protocol layer alone can accomplish.
Data Source
AI summary
A link control node and method, and a system are provided. An MPTCP sublink is identified; and from the MPTCP sublink, a first MPTCP sublink on which link control needs to be performed is determined, and an adjustment manner applicable to the first MPTCP sublink is determined. By adding centralized management and control measures on MPTCP connections, a data transmission process on each MPTCP sublink can be performed on an expected communication link, which adapts to running requirements of a system. Therefore, radio resources can be appropriately allocated, and system performance can be improved.