Congestion Control in 5G IoT Mobile Networks
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Solution Overview
Problem
Current congestion control methods in mobile communication systems either randomly discard packets, leading to retransmission issues, or rely on delayed indicator reporting, which is inefficient in managing network congestion.
Innovation Solution
A method and apparatus that determine congestion occurrence, support congestion control based on downlink packets, identify relevant uplink packets, and update congestion-related fields in packet headers to efficiently manage congestion by reporting it to both receivers and transmitters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If packets are randomly discarded when congestion occurs, then buffer capacity is managed, but retransmission traffic causes congestion to recur
Solution Approach 1:
The patent implements feedback mechanisms where network apparatuses send congestion indicators to transmitters and receivers. The transmitter receives congestion notification and adjusts its transmission rate accordingly, creating a closed-loop control system that prevents congestion recurrence rather than merely managing buffer capacity through random packet discarding.
2Reliability
If congestion indicators are reported using traditional methods, then transmitters and receivers are notified, but transmission delay increases in congested networks
Solution Approach 1:
The patent embeds congestion indicators directly into packet headers during packet generation and forwarding, rather than adding separate indicator messages after congestion occurs. This preliminary embedding of control information allows immediate notification to transmitters and receivers without additional transmission delays, as the congestion information travels with the data packets themselves.
3Quantity of substance
If network apparatuses use up to buffer capacity limit, then packet storage is maximized, but congestion control responsiveness is reduced
Solution Approach 1:
The patent sends congestion indicators proactively when congestion is detected, before the buffer reaches its capacity limit. This preliminary notification allows the transmitter to reduce its transmission rate in advance, preventing buffer overflow and maintaining responsive congestion control while still utilizing available buffer capacity effectively.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention relates to a method and an apparatus for efficiently performing congestion control in a mobile communication system network.