VoWiFi Call Bandwidth Allocation for Stable Quality Under Load

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Solution Overview

Problem

VoWiFi calls experience unstable call quality due to network speed and resource allocation issues, leading to interruptions and poor user experience, especially when concurrent services are running.

Innovation Solution

A method and apparatus that determine the current network environment level and allocate bandwidth accordingly, switching to another network if necessary, to maintain call quality and continuity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bandwidth is allocated to VoWiFi call during concurrent services, then call quality is improved, but network resource allocation becomes unstable and call interruptions occur

Engineering Contradiction:
Improvecall quality stabilityVSAvoidnetwork resource management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic bandwidth adjustment based on real-time network conditions. The system continuously monitors network parameters (speed, latency, packet loss) and dynamically allocates bandwidth to VoWiFi calls according to current network environment levels, allowing the system to adapt to changing network conditions and maintain stable call quality while managing concurrent services.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes network parameter thresholds and bandwidth allocation values based on current network environment levels. By establishing different bandwidth allocation strategies for different network conditions (e.g., high-speed Wi-Fi vs. low-speed cellular), the system optimizes call quality stability across varying network conditions without requiring overly complex management mechanisms.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If network speed is reduced for concurrent services, then resource allocation improves, but call continuity is interrupted

Engineering Contradiction:
Improveconcurrent service throughputVSAvoidcall continuity
Core Design Contradiction:
ProductivityVSDuration of action of moving object

Solution Approach 1:

The patent implements a feedback mechanism that continuously monitors network parameters and call quality indicators. When network conditions change or call quality deteriorates, the system receives feedback and adjusts bandwidth allocation in real-time, ensuring that call continuity is maintained even when concurrent services require network resources.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent establishes minimum bandwidth thresholds and quality of service (QoS) parameters in advance to ensure call continuity. By pre-defining critical bandwidth requirements for VoWiFi calls, the system reserves sufficient resources before resource conflicts occur, cushioning against potential call interruptions when concurrent services demand network bandwidth.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If bandwidth is dynamically adjusted based on network conditions, then call quality improves, but system complexity increases

Engineering Contradiction:
Improvecall qualityVSAvoidbandwidth management system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent simplifies bandwidth management by establishing discrete network environment levels (e.g., Level 1, Level 2, Level 3) with corresponding bandwidth allocation rules. Instead of continuous complex adjustment, the system maps network conditions to predefined levels and applies standardized bandwidth strategies for each level, reducing computational complexity while maintaining call quality.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies different bandwidth allocation strategies tailored to specific network conditions and service types. By localizing quality management to specific network environment levels and call scenarios, the system optimizes call quality for each condition without requiring a single complex unified management system, thereby reducing overall system complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12464411B2Voice call method and apparatus and electronic device
Publication Date: 2025.11.04 VIVO MOBILE COMM CO LTD
  • US12464411B2 patent drawing
  • US12464411B2 patent drawing
  • US12464411B2 patent drawing

AI summary

This application discloses a voice call method and apparatus and an electronic device, and belongs to the field of communication technologies. The voice call method includes: determining the current network environment level information of the first network of the current voice call according to the current network parameter information of the first network; and allocating the bandwidth to the current voice call according to the current network environment level information; where the current network parameter information includes current network speed information, the bandwidth is a bandwidth of the first network or a bandwidth of a second network, and the first network is different from the second network.