2023-06-09-中国广电-5G新通话白皮书（2023年版）_27页_1mb

5G New Calling: Redefining Real-Time Communication

Chapter 1: 5G New Calling - Redefining Real-Time Communication

Introduction

5G new calling technology integrates advanced multimedia real-time communication capabilities, building on VoNR services. It introduces new data transmission channels to offer users seamless fusion of high-definition video, audio, and data application services, enhancing traditional communication with immersive experiences.

Driven by national policies, 5G infrastructure expansion, and diverse user needs, 5G new calling serves as a critical tool for social services like emergency response and accessibility features for the elderly and disabled, marking a shift from basic voice/video calls to intelligent real-time interaction platforms.

Collaborative efforts among operators, device manufacturers, and technology providers are essential for developing ecosystem standards and APIs to support this evolving service.

Chapter 2: 5G New Calling Technology

Network Architecture

The architecture leverages IMS (IP Multimedia Subsystem) and incorporates 3GPP Rel-18-defined Data Channel (IMS Data Channel) to integrate signaling and media functionality via service-based interfaces (SBI). This enables real-time interaction between users and applications while maintaining compatibility with existing voice services.

Deployment Plans

Deployment involves upgrading existing network elements and integrating new platforms for media processing and application repositories. The target rollout includes standardized APIs for third-party applications and new device requirements supporting DC functionality.

Chapter 3: Terminal Requirements

Device Specifications

Terminals must support IMS Data Channel capabilities, enhancing call features like visual effects, AI features, and interactive applications. Key requirements include:

• Support for SIP/SDP protocols for DC negotiation.
• Native integration of new calling features with Web-based applications.
• Compatibility with JavaScript-based apps for rich media interaction.

Chapter 4: Business Scenarios

Consumer Applications

Personal calling experiences are enhanced via features like augmented reality effects, video sharing, real-time translation support, and AI-powered assistants. These tools are designed to meet entertainment, education, and convenience needs.

Enterprise Services

New calling supports customer service interactions via video screenshare and text-to-speech capabilities. It facilitates service delivery and problem resolution.

Social Services

Emergency response improvements via location and real-time video sharing. Accessibility features for the hearing impaired utilize text rendering and high-definition video capabilities.

B2C Innovations

5G new calling enables seamless integration for merchants seeking direct customer access via mobile networks instead of relying solely on third-party apps.

Chapter 5: Ecosystem Development

Collaboration among operators, device makers, and platform providers is needed to standardize APIs, accelerate deployments, and drive down costs. Ecosystem partners are encouraged to innovate and create compelling applications.