VoMPLS Header Compression for Bandwidth Efficiency
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Solution Overview
Problem
Traditional VoIP solutions experience high overhead and inefficient link usage due to the accumulated size of protocol headers, which limits bandwidth compression efficiency.
Innovation Solution
Implementing Real-Time Transport Protocol (RTP) header compression and multiplexing, along with Voice over Multiprotocol Label Switching (VoMPLS) that eliminates IP/UDP/RTP headers by using a session header, reducing overhead and enhancing network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional stacked header approach is used for VoIP, then protocol compatibility is maintained, but header overhead increases and bandwidth efficiency decreases
Solution Approach 1:
The patent extracts and removes the IP/UDP/RTP header stack from traditional VoIP packets, retaining only the essential MPLS header and session information. This extraction eliminates redundant header overhead while maintaining necessary packet identification and routing functions through alternative mechanisms.
Solution Approach 2:
The MPLS header in the patent serves multiple functions simultaneously: it provides routing information, quality of service (QoS) marking, packet identification, and session management. This multi-functionality replaces what would traditionally require separate IP, UDP, and RTP headers, reducing overall overhead.
2Loss of energy
If header compression is applied at every network component, then bandwidth efficiency improves, but processing delay increases
Solution Approach 1:
The patent performs header compression at the originating network component (ingress LER) before packets enter the MPLS network. By pre-compressing headers at the source rather than at every intermediate node, the system achieves bandwidth efficiency without introducing cumulative processing delays across multiple network components.
Solution Approach 2:
The patent introduces an intermediary compression mechanism that operates at the edge devices (ingress and egress LERs) rather than requiring every network component to perform compression. This intermediary approach at the boundaries reduces overhead while minimizing processing impact across the network.
3Productivity
If MPLS is used for voice traffic, then QoS control and network efficiency improve, but compatibility with traditional IP networks decreases
Solution Approach 1:
The patent embeds session information and QoS parameters within the MPLS header structure itself, nesting multiple functional elements into a single header. This nested structure allows MPLS packets to carry comprehensive voice traffic information while maintaining a compact format that integrates with existing network infrastructure.
Solution Approach 2:
The patent modifies key parameters within the MPLS header, such as using the Traffic Class field for QoS marking and the Label Field for packet identification and routing. By reinterpreting and utilizing existing MPLS header parameters for voice-specific functions, the system achieves compatibility with traditional IP networks while providing enhanced QoS control.
Data Source
AI summary
A method, system, and computer-readable medium for transmitting voice over multiprotocol label switching is provided. A packet that includes layer 3 and layer 4 headers is received. A label that identifies a label switched path in the packet is inserted, and a stream identifier is generated. The stream identifier is associated with at least a portion of content of the layer 3 and layer 4 headers. The layer 3 and layer 4 headers are removed from the packet, and the stream identifier is inserted into the packet. Additionally, methods, systems, and a computer-readable medium for processing a voice over multiprotocol label switching frame that excludes layer 3 and layer 4 headers are provided.