VoLTE网络结构最新标准

VoLTE网络结构最新标准

VoLTE（Voice

over

LongTerm

Evolution）是一种在LTE网络上实现高质量语音通话的技术。它基于IP多媒体子系统（IMS）网络，将语音服务的控制和媒体层面作为数据流在LTE数据承载网络中传输。以下是关于VoLTE网络结构的最新标准的相关信息。

1.VoLTE网络技术要求

VoLTE业务的网络技术要求是根据3GPP的相关规范制定的。最新的标准包括统一IMS网络（第二阶段）支持VoLTE的网络技术要求和业务技术要求。这些标准是由中国电信集团有限公司、中国联合网络通信集团有限公司、中国信息通信研究院等多家单位共同起草的。

2.VoLTE业务流程

VoLTE业务流程是另一项重要的标准，它详细描述了用户注册、鉴权、呼叫流程等各个环节的操作。这份标准可以帮助网络运营商和设备制造商确保他们的系统能够正确处理VoLTE业务。

3.VoLTE规范清单

There

are

84

VoLTE

specifications

defined

by

the

3GPP,

which

cover

various

aspects

of

the

technology,

including

EPC

attachment流程,

NAS消息构成,

S6a

interface及消息构成,

GTPv2

interface及消息构成,

Gx接口及消息构成,

and

more.

4.VoLTE网络架构

The

VoLTE

network

architecture

includes

multiple

network

entities

that

work

together

to

provide

the

service.These

entities

are

responsible

for

functions

such

as

media

service,

eSRVCC

switching,

interconnection

with

other

IMS

and

traditional

voice

networks,

and

more.

5.VoLTE支持的业务功能

VoLTE

supports

a

range

of

basic

and

supplementary

voice

and

data

services,

including

multimedia

phone

calls,

speech

conferences,

video

conferences,

and

short

message互通功能

between

the

IMS

domain

and

the

CS

domain。

6.VoLTE

QoS保障

VoLTE

uses

Quality

of

Service

(QoS)

mechani***s

to

ensure

that

voice

calls

are

prioritized

and

have

sufficient

resources

to

maintain

a

high

level

of

quality.This

includes

the

use

of

different

QoS

classes

for

different

types

of

traffic,

such

as

default

bearer,