Selective TCP Packet Compression for Network Bandwidth Efficiency
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Solution Overview
Problem
Service providers face challenges in maintaining consumer satisfaction due to increasing bandwidth demands and limited network capacity, often resulting in data processing inefficiencies such as negative compression ratios and congestion, especially when handling already compressed content.
Innovation Solution
An apparatus and method that identify TCP connections in communication networks, determine if they involve HTTP transactions, and selectively compress only packets eligible for compression, while maintaining other packets in their original form to avoid negative compression ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If networking devices perform data compression on all content, then bandwidth efficiency improves, but processing time increases and negative compression ratio occurs for already compressed content
Solution Approach 1:
The patent applies preliminary action by examining the content type before compression is performed. The system identifies whether content is already compressed (such as audio, video, or image files) using file type detection and header analysis, then selectively applies compression only to uncompressed content types like HTML, XML, and JavaScript. This preliminary identification prevents unnecessary processing time from being spent on already compressed content.
Solution Approach 2:
The patent implements local quality by applying different compression treatments to different parts of the data stream based on content type. Instead of uniformly compressing all data, the system applies compression selectively to specific content types that benefit from it (text-based protocols like HTTP, SMTP, POP3) while leaving already compressed content (audio, video, images) uncompressed. This localized approach optimizes both bandwidth efficiency and processing time.
2Quantity of substance
If networking devices compress all data packets, then bandwidth requirements decrease, but network congestion increases due to processing delays
Solution Approach 1:
The patent applies partial action by compressing only the portion of data traffic that is eligible for compression (uncompressed content types) rather than attempting to compress all data packets. The system identifies compression-eligible content using protocol detection and content-type headers, then applies compression only to those specific packets. This partial approach reduces bandwidth requirements for eligible content without incurring the processing delays that would result from attempting to compress all traffic, thereby maintaining network throughput.
3Quantity of substance
If infrastructure bandwidth is increased to meet consumer demand, then consumer satisfaction improves, but deployment costs increase
Solution Approach 1:
The patent applies parameter changes by modifying the data representation parameters through compression of eligible content types. By compressing text-based protocols and uncompressed content, the system effectively increases the amount of usable bandwidth available on the existing infrastructure without requiring physical expansion. This parameter-based optimization allows the network to handle increased consumer demand while avoiding the high deployment costs associated with expanding physical infrastructure.
Data Source
AI summary
An apparatus and method for avoiding negative compression in communication networks. A TCP connection is identified from traffic data being received across the communication network. TCP connections which facilitate HTTP transactions are examined to determine whether compression eligible information is being transmitted. All packets associated with the TCP connection are compressed, if the transaction includes compression eligible information. All packets associated with the TCP connection are output in compressed form. All other packets are output in their originally received form.