Wireless Access Network Device PDCP Header Window Size Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless access networks, the mismatch between the allocated wireless resource and the data window size can lead to network congestion, as the amount of wireless resource allocated by the base station may differ from the data amount to be transmitted, causing variations in data transmission and reception between terminal devices and server devices.
Innovation Solution
A wireless access network device is configured with a control unit that sets a parameter indicating the data amount a receiving device can receive in the header of protocols at the transport layer or layers above it, ensuring that the data amount transmitted and received matches the allocated wireless resource, thereby preventing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the window size is configured based on buffer capacity or contents to be distributed at the gateway device or server device, then the data transmission capacity is improved, but the network congestion occurs due to mismatch between allocated wireless resource and data amount
Solution Approach 1:
The wireless base station acts as an intermediary between the gateway device/server device and the terminal device. It receives the window size parameter from the gateway or server, adjusts it according to the actual wireless resource allocation, and sets the adjusted window size in the PDCP header before transmitting to the terminal device. This intermediary action resolves the mismatch between the original window size and actual wireless capacity, preventing network congestion while maintaining high data transmission capacity.
Solution Approach 2:
The invention dynamically changes the window size parameter based on the allocated wireless resource amount. The control unit at the wireless base station modifies the window size value in the protocol header according to the actual wireless capacity available to each terminal device. This parameter adjustment ensures that the data transmission amount matches the wireless resource allocation, resolving the contradiction between maximizing transmission capacity and avoiding congestion.
2Productivity
If the wireless resource allocation is adjusted based on communication situation, then the communication efficiency is improved, but the data amount mismatch with window size causes congestion
Solution Approach 1:
The system implements a feedback mechanism where the wireless base station monitors the communication situation and wireless resource allocation, then uses this information to adjust the window size parameter. The control unit receives feedback about the allocated wireless resources and dynamically adjusts the window size in the PDCP header accordingly. This feedback loop ensures that the data transmission amount always matches the actual wireless capacity, maintaining both communication efficiency and transmission reliability.
Data Source
AI summary
A wireless access network device includes a control unit configured to set a parameter indicating a data amount that a receiving device can receive, in a header of a protocol of at least one of a transport layer and a layer superordinate to the transport layer, the protocol being utilized when a transmitting device transmits data to the receiving device, and a communication unit that communicates with a terminal device.