Packet-Switched Voice Connection Latency Reduction

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Solution Overview

Problem

Existing communication technologies experience delays during voice calls, leading to unnatural conversations and potential issues with voice activity detection.

Innovation Solution

A method that establishes a packet-switched connection between devices and allocates a frequency resource for real-time voice communication, maintaining resource allocation during intervals with and without voice activity to reduce processing delays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If frequency resource allocation is released during intervals without voice activity, then resource efficiency is improved, but processing delays increase when voice activity resumes

Engineering Contradiction:
Improveresource efficiencyVSAvoidprocessing delay
Core Design Contradiction:
Loss of energyVSLoss of time

Solution Approach 1:

The patent applies preliminary action by maintaining frequency resource allocation during silent intervals before voice activity resumes. This ensures that when voice packets need to be transmitted again, the frequency resources are already allocated and ready, eliminating the delay that would occur if resources had to be reallocated. The system proactively keeps resources reserved during the second interval of time (silent period) so that the third interval (voice activity) can begin immediately without waiting for resource allocation procedures.

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If frequency resources are continuously allocated during packet-switched connections, then processing delays are reduced, but resource waste increases during voice inactivity

Engineering Contradiction:
Improveprocessing delayVSAvoidresource waste
Core Design Contradiction:
Loss of timeVSLoss of energy

Solution Approach 1:

The patent applies dynamics by making the frequency resource allocation state changeable based on voice activity detection. During voice activity intervals, resources are allocated and actively used for transmitting voice packets. During silent intervals, the allocation is maintained but no transmission occurs, preserving the ability to resume immediately. This dynamic approach allows the system to adapt between active transmission and standby states, optimizing the balance between delay reduction and resource efficiency.

Inventive Principle:
Principle #15Dynamics

3Loss of energy

If voice activity detection is used to control packet transmission, then resource efficiency is improved, but conversation naturalness deteriorates due to delays

Engineering Contradiction:
Improveresource efficiencyVSAvoidconversation naturalness
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The patent resolves this contradiction by applying preliminary action through maintaining frequency resource allocation during silent periods between voice activities. This preliminary maintenance of resource allocation ensures that when the next voice activity occurs, transmission can begin immediately without the delays associated with reallocation procedures. The system prepares the transmission path in advance during the second interval, so the third interval can start without interruption, preserving conversation naturalness while still allowing resource efficiency improvements during actual voice transmission periods.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12205615B2Systems/methods of reducing a delay/latency measure of communications
Publication Date: 2025.01.21 ENK WIRELESS INC
  • US12205615B2 patent drawing
  • US12205615B2 patent drawing
  • US12205615B2 patent drawing

AI summary

A method including establishing a packet-switched connection between a first device and a second device is provided. The method includes transmitting a first plurality of packets that include first real-time voice information over the packet-switched connection using an allocated frequency resource. The method includes maintaining allocation of the frequency resource to the packet-switched connection during an interval of time that is devoid of voice activity detected by either the first device or the second device. The method includes transmitting a second plurality of packets that include real-time voice information over the packet-switched connection using the frequency resource.