MPLS Label Decapsulation for Satellite Spectral Efficiency
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Solution Overview
Problem
Current satellite communication systems face inefficiencies due to limited radiocommunication resources, particularly with multimedia streams requiring high bit rate consistency and low latency, and the overhead generated by MPLS protocol suite labels affects system performance.
Innovation Solution
A method for optimizing spectral resources by establishing an initial connection to record and manage intermediate level labels, allowing for decapsulation and reconstruction of data packets, and updating labels as needed, reducing redundant label transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the MPLS protocol suite is used for data packet routing in satellite communication systems, then routing flexibility and traffic engineering capabilities are improved, but spectral efficiency deteriorates due to overhead generated by switching labels
Solution Approach 1:
The patent extracts and removes MPLS switching labels from data packets during transmission over the satellite radio link. The labels are stripped at the ingress gateway before transmission, eliminating the overhead that reduces spectral efficiency while maintaining MPLS routing capabilities within the terrestrial network segments.
Solution Approach 2:
The patent segments the communication system into distinct functional zones: terrestrial MPLS network segments where labels are maintained for routing flexibility, and satellite radio link segments where labels are removed to optimize spectral efficiency. This segmentation allows each segment to operate with optimal characteristics for its specific requirements.
2Loss of energy
If protocol header compression mechanisms like RoHC are used to reduce header size, then spectral efficiency is improved, but implementation complexity and initial connection requirements increase
Solution Approach 1:
Instead of implementing complex compression algorithms like RoHC that require state management and initial connection phases, the patent uses a simpler approach of completely removing the MPLS label headers. This disposable approach eliminates the need for complex compression/decompression mechanisms while achieving spectral efficiency gains.
3Reliability
If MPLS labels are transmitted with each data packet, then routing information is maintained, but bandwidth utilization deteriorates due to redundant overhead
Solution Approach 1:
The patent performs preliminary action by pre-establishing MPLS label switching paths and configuring routing information before data transmission begins. The ingress gateway is pre-configured with label mappings and routing tables, allowing labels to be stripped from packets without losing routing information, as the routing decisions have already been determined.
Data Source
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AI summary
A method for transmitting data between a first communication device (EC1) and a second communication device (EC2), the first communication device (EC1) being configured to receive data from a router connected to the first communication device (LSR-EC1) in the form of packets comprising at least one intermediate level label, characterized in that the method comprises at least: a) An initial connection establishment step, comprising at least: - a1) A substep for transmitting the intermediate level label; - a2) A substep for recording the intermediate level label; b) A data packet transmission step, comprising: - b1) A substep for removing the intermediate level label transmitted by the router connected to the first communication device (LSR-EC1) from the data packet;- b2) A sub-step of transmitting the decapsulated data packet, in order to be reconstructed after its transmission.;