Satellite Bandwidth Allocation for Jitter-Free Real-Time Sessions
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Solution Overview
Problem
Satellite-based communication networks face challenges in providing sufficient and jitter-free bandwidth for real-time content, such as voice and video streams, which can lead to content degradation or loss if not guaranteed throughout the session duration.
Innovation Solution
A method involving a satellite-based network with remote terminals and a central hub using reservation techniques like DVB-RCS, employing an allocation algorithm to ensure jitter-free bandwidth allocation, admission control during session setup and modification, and resource reallocation to maintain quality of service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If bandwidth is allocated for real-time content in satellite networks using reservation techniques, then sufficient capacity is provided, but jitter-free transmission cannot be guaranteed due to dynamic channel conditions
Solution Approach 1:
The patent applies preliminary action by performing admission control during session setup to pre-allocate and reserve bandwidth resources before real-time content transmission begins. The system calculates required bandwidth based on content characteristics (video, audio, teleconference) and reserves sufficient capacity in advance, ensuring both quantity and quality (jitter-free transmission) are guaranteed for the session duration.
2Reliability
If admission control is applied during session setup to guarantee bandwidth, then quality of service is ensured, but session establishment may be refused when resources are insufficient
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting admission control decisions based on multiple factors including available bandwidth, content type requirements, and current network load. The system evaluates whether to admit or refuse sessions by analyzing these parameters, allowing flexible resource allocation that maintains quality of service while maximizing session establishment success rate under varying resource conditions.
3Reliability
If bandwidth is reserved for existing sessions, then jitter-free transmission is maintained, but network resources cannot be reallocated when conditions change
Solution Approach 1:
The patent applies dynamics by implementing a hybrid resource management approach where bandwidth is partially reserved to guarantee minimum quality of service while allowing dynamic reallocation of remaining resources. The system monitors channel conditions and can reallocate non-reserved bandwidth dynamically, maintaining jitter-free transmission for reserved portions while adapting to changing network conditions and maximizing overall resource utilization.
4Reliability
If sufficient bandwidth is guaranteed for real-time content, then content quality is maintained, but network resource waste occurs when bandwidth is allocated but not fully utilized
Solution Approach 1:
The patent applies local quality by allocating bandwidth according to specific content requirements rather than uniform allocation. The system analyzes content characteristics (video streaming, audio conferencing, teleconference) and assigns appropriate bandwidth levels locally to each session based on its specific quality needs, ensuring content quality is maintained while minimizing overall network resource waste through optimized, non-uniform resource distribution.
Data Source
AI summary
A collection of methods, which when combined together provide suitable bandwidth resources for real-time content exchange over a satellite-based network, wherein the network employs a reservation-based access scheme, such as but not limited to DVB-RCS. Furthermore, the methods provide suitable bandwidth wherein transmission conditions deteriorate while real-time content is being exchanged and the already allocated resources can no longer be used.