Base Station TCP Slow Start Phase Adaptation
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Solution Overview
Problem
The existing Transmission Control Protocol (TCP) in wireless communication networks incurs long delays due to its optimization for reliable data delivery over timely delivery, which affects user experience and network performance, especially during the slow start phase of congestion control.
Innovation Solution
A method is introduced to identify the imminent end of the slow start phase in TCP congestion control, allowing for adaptive adjustments in data packet delivery characteristics, such as activating secondary base stations for dual connectivity or deactivating latency reduction techniques, to optimize latency and throughput accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TCP is optimized for reliable data delivery, then data delivery reliability is improved, but delivery latency increases
Solution Approach 1:
The patent dynamically adapts the characteristic of data packet delivery based on the TCP congestion control phase. The base station identifies whether TCP is in slow start phase or congestion avoidance phase and adjusts delivery characteristics accordingly, making the system flexible rather than static to resolve the contradiction between reliability and latency
Solution Approach 2:
The patent changes delivery parameters (such as activating/deactivating secondary base stations, adjusting latency reduction techniques) based on the identified TCP phase. By modifying system parameters dynamically according to congestion control state, the patent achieves both high reliability and reduced latency at different phases
2Loss of time
If latency reduction techniques are activated, then delivery latency is reduced, but network throughput may be compromised
Solution Approach 1:
The patent dynamically activates or deactivates latency reduction techniques based on the TCP congestion control phase identification. During slow start phase, latency reduction techniques are activated to speed up congestion window growth, while during congestion avoidance phase, normal operation resumes to maintain throughput
Solution Approach 2:
The patent prepares and activates latency reduction techniques in advance during the slow start phase when they are most needed for rapid congestion window expansion, before transitioning to congestion avoidance phase where throughput becomes the priority
3Productivity
If secondary base stations are activated for dual connectivity, then network throughput is improved, but system complexity increases
Solution Approach 1:
The patent dynamically activates secondary base stations only during specific TCP phases (slow start or upon detecting congestion), rather than maintaining them continuously. This dynamic activation reduces average system complexity while achieving throughput improvement when needed
Solution Approach 2:
The patent activates secondary base stations in advance during slow start phase to prepare for potential throughput requirements, and deactivates them when congestion is detected or phase transitions occur, managing complexity proactively
Data Source
AI summary
The present disclosure generally relates to the field of data delivery. More specifically, the present disclosure relates to a technique of supporting delivery of data packets using Transmission Control Protocol (TCP) in a wireless communication network. A method embodiment comprises identifying (S202), by a base station of the wireless communication network, an imminent end of a slow start phase of TCP congestion control. The method further comprises adapting (S204) a characteristic of the delivery of the data packets in the wireless communication network, if the imminent end of the slow start phase is identified.