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In the 5G era, real-time communication is still an indispensable basic business capability. Since the development of 5G, it has entered a period of accelerated development from the period of infrastructure construction, so what does 5G voice look like now?

Under the 5G SA architecture, the 5G voice scheme consists of three phases:

EPS Fallback voice scheme

VoNR voice scheme

VoNR + voice scheme

01. After the construction of EPS Fallback voice solution 5G has been developed to SA architecture, 5GC has been deployed. When NR hotspots are covered, in order to avoid frequent switching of 4G / 5G, EPS Fallback voice scheme is recommended.

IMS software upgrade supports NR access. NR triggers when a media stream is created, and voice falls back to VoLTE.

EPS Fallback is a voice transition scheme covered by base station hotspots at the initial stage of 5G deployment to avoid voice interruption caused by frequent handover and affect the user experience.

02. VoNR voice scheme gradually expands to continuous coverage with 5G NR coverage, voice is carried on NR, and VoNR voice scheme is adopted.

NR supports audio and video. Media streams are created directly under NR coverage, and the edges are switched to VoLTE continuous calls.

VoNR is used after deployment on a 5G scale, with short call setup time, good user experience, easy to understand and use, economical and other advantages.

Compared with VoLTE voice based on 4G network, VoNR has lower call delay and better timbre picture quality, which can significantly improve the user experience.

VoNR does not need to add friends in advance, but can dial directly through the mobile phone number for video calls, even if the elderly, children and other groups are easy to understand and use, which is conducive to the rapid development of business.

Reasonable VoNR package setting can also effectively reduce the traffic consumption of video calls, which is economical and affordable.

03. VoNR + voice scheme has entered an acceleration period with the global 5G development, and 5G NR has gradually achieved wide area coverage. All voice is carried on NR, and VoNR + voice scheme is adopted.

VoNR+ includes two phases: VoNR+ based on video enhancement and VoNR+ based on IMS DC.

VoNR+ based on video enhancement VoNR+ based on video enhancement is based on VoNR and VoLTE video calls, enhance the intelligent processing of audio and video AI through the network, promote the integration of traditional audio and video capabilities and other media forms, and provide new call services.

Maximize the video call capability of terminals and networks. VoNR + business processes based on video enhancement mainly focus on video customer service, video simultaneous interpretation, video interesting calls, and so on.

Through VoLTE / VoNR terminals, VoNR + allows you to push interesting videos or vivid and intuitive business information to peer users through "one-way" or "two-way" video.

For enterprise users, it can improve service quality and work efficiency; for individual users, they can enjoy all kinds of convenience brought by strong video ability to work, life and so on.

VoNR+ based on IMS data channel VoNR+ based on IMS data channel is equipped with a new IMS data channel on the basis of VoNR audio and video channel, which not only provides high-definition real-time audio and video service, but also provides full-media data interaction service, bringing users a new interactive and immersive business experience.

On the basis of VoNR calls, using IMS data channel architecture, users experience a variety of interactive and immersive new interactive services through data channel interactive menu, text, expression, location and other multimedia information.

It can provide new services such as smart business card, intelligent customer service, remote guidance, simultaneous interpretation, screen sharing, electronic whiteboard and content sharing. Users only need to use the VoNR + terminal that supports IMS data channel to send and receive a variety of interactive multimedia messages through the data channel "two-way" while making audio and video calls normally.

It can be widely used in ToC, ToB, ToH and other occasions to bring users a variety of "more fun, easier to use, more efficient" interactive new call services.

Business function 5G Voice further enhances voice service experience and enriches business content on the basis of 4G VoLTE, providing users with high-definition audio and video calls, interactive and immersive calls, as well as open application platforms.

The HD audio and video call 5G network supports HD voice (EVS, IVAS), HD video (720p / 1080p / 2K / 4K) and any media (picture, audio, video, menu, emoji, location, AR / VR) that carry more information. Typical business functions such as HD family calls, HD visual access control, HD video customer service, etc.

Interactive and immersive calls with the intelligence and large screen of mobile terminals, the demand of users for real-time communication is also gradually increasing. The 5G network supports interactive and immersive real-time communication, and the user's sensory experience extends from "listening and seeing" to "touch" and remote operation. Typical business functions such as AR social networking, remote mentoring, etc.

Open application ToC application: provide "more fun" and "easier to use" business experience, so that users have the opportunity to feel physically and mentally happy and show their personality. Typical business functions such as interesting calls, simultaneous interpretation, etc.

ToB application: provide "more economical" and "more efficient" business experience, so that enterprise users can get greater economic and social benefits. Typical business functions such as intelligent customer service, calling business cards, etc.

ToH application: provide "more intimate" and "smarter" business experience, so that users can enjoy the convenient life of modern smart families. Typical business functions such as smart door lock, smart home and so on.

05. at the end, the further development of 5G voice has broken through the shackles of the traditional communication mode, and it is a truly veritable multimedia communication.

5G speech breaks the space limitation of hearing and vision, makes the communication between people achieve sensory extension, breaks the original limitation of communication between people, and opens a new era of all-media real-time communication between people, people and things.

This article comes from the official account of Wechat: ZTE documents (ID:ztedoc)

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