Low-Latency Network Bandwidth Allocation for Satellite Return Links
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Solution Overview
Problem
Satellite networks with high latency face challenges in efficiently allocating return-link bandwidth due to large latency delays, leading to wasted capacity and slowed network communication, as they often overestimate bandwidth needs to account for speculative transmissions.
Innovation Solution
A method and system that utilize a low-latency network to manage return-link bandwidth allocation by receiving requests from user terminals, determining necessary bandwidth, generating schedules, and transmitting them back over the low-latency network, thereby reducing unnecessary delays and improving bandwidth allocation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite networks allocate more bandwidth to account for speculative transmissions, then reliability of bandwidth allocation is improved, but loss of energy increases due to wasted bandwidth capacity
Solution Approach 1:
The patent applies preliminary action by having the gateway allocate return-link bandwidth in advance based on forecasted traffic patterns before the actual transmission occurs. The gateway receives traffic forecasts from user terminals, calculates required bandwidth, and allocates it proactively, eliminating the need to over-allocate for speculative transmissions while ensuring sufficient capacity is available when needed.
2Adaptability or versatility
If satellite networks use high-latency channels for bandwidth allocation, then adaptability to remote areas is improved, but loss of time increases due to multiple request-response cycles
Solution Approach 1:
The system performs preliminary bandwidth allocation based on traffic forecasts before actual data transmissions occur. User terminals send traffic forecasts to the gateway, which calculates and allocates bandwidth in advance, eliminating the need for multiple real-time request-response cycles during actual transmissions and reducing overall allocation delay.
Solution Approach 2:
The patent implements feedback mechanisms where user terminals provide traffic forecasts to the gateway, which then adjusts bandwidth allocations based on this feedback. The gateway monitors actual transmission patterns and refines future allocations based on observed performance, creating a closed-loop system that optimizes bandwidth distribution over time.
3Reliability
If satellite networks allocate excessive bandwidth to ensure sufficient capacity, then reliability of communication is improved, but productivity decreases due to reduced network efficiency
Solution Approach 1:
The gateway performs preliminary bandwidth allocation based on traffic forecasts before actual transmissions occur. By calculating required bandwidth in advance using forecast data from user terminals, the system ensures sufficient capacity is allocated without over-provisioning, maintaining communication reliability while optimizing network efficiency and preventing bandwidth waste.
Data Source
AI summary
Described herein are systems, devices, and methods that improve network communication on a high-latency network by using a low-latency network to manage return-link bandwidth. Embodiments of the systems described herein include a user terminal that is communicatively coupled to a high-latency network and a low-latency network. The user terminal is configured to communicate with a gateway routing device over the low-latency network. The user terminal requests return-link bandwidth and the gateway routing device provides a transmission schedule to the user terminal over the low-latency network. The user terminal can be configured to transmit a message over the high-latency network using the scheduled return-link bandwidth.