Call Latency Reduction via Segmented Packet Relay
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Solution Overview
Problem
Monitoring telephone calls in packet switched networks leads to increased latency due to the process of tromboning or hairpinning, which involves multiple compressions and decompressions of data packets, resulting in delays during voice conversations.
Innovation Solution
A service management platform with a monitoring component that directly relays data packets between input/output legs of a call, generating and forwarding copies for command detection, thereby eliminating the need for decompression and recompression, reducing latency by using a bidirectional link for direct relaying and a unidirectional link for monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data packets are collected in a buffer, decompressed, decoded, processed by monitoring equipment, encoded, recompressed, and retransmitted, then command detection capability is improved, but call latency increases
Solution Approach 1:
The patent segments the data packet handling into two separate paths: a monitoring path that extracts and analyzes packet data for command detection, and a transmission path that directly forwards packets without processing. This segmentation allows command detection to occur on copies or extracted data while the original packets maintain their direct transmission route, eliminating latency.
Solution Approach 2:
The patent creates copies of packet data for monitoring purposes while the original packets continue through the transmission path unchanged. The monitoring equipment processes these copies to detect commands, while the main data flow experiences no processing delay, thus maintaining real-time transmission quality.
2Ease of operation
If multiple compressions and decompressions are performed on data packets, then monitoring and processing capability is improved, but voice conversation quality deteriorates
Solution Approach 1:
The patent divides packet handling into monitoring and transmission functions. Monitoring is performed on extracted data or copies through buffer, decode, and analyze operations, while transmission packets bypass these processing stages entirely, maintaining their original quality without compression artifacts.
Solution Approach 2:
Instead of processing original transmission packets through compression/decompression cycles, the system creates monitoring copies that can be processed without affecting the quality of the original voice data being transmitted.
3Measurement precision
If data packets are routed through a monitoring component with buffer and processing, then command detection accuracy is improved, but real-time transmission performance deteriorates
Solution Approach 1:
The patent implements a segmented architecture where packet data is split into monitoring extracts and transmission originals. The monitoring segment undergoes buffer, decode, and analyze processing for accurate command detection, while the transmission segment flows directly through the network without processing delays, maintaining real-time speed.
Solution Approach 2:
The patent introduces an intermediary monitoring component that extracts and processes packet data separately from the main transmission path. This intermediary handles the processing workload for command detection while the primary transmission path remains unobstructed, ensuring real-time performance is maintained.
Data Source
AI summary
A service management platform for processing packet switched communications is provided. The service management platform has a component for handling voice calls. The component for handling voice calls comprises a first input/output for sending and receiving data packets associated with a first leg of a call, a second input/output for sending and receiving data packets associated with a second leg of the call, a monitoring component for monitoring copies of the data packets for commands contained within a payload of the data packets, and a relay component for directly relaying the data packets between the first input/output and the second input/output and for generating and forwarding copies of the data packets to the monitoring component.