分组交换业务

WAP协议可以运行于不同的承载服务上，包括短消息、基于电路交换的数据业务、分组交换数据业务等。

WAP protocol could run on different transportation services , including SMS , CSD , GPRS and so forth .

GPRS网络提供了基于IP的分组交换数据业务，这就使得终端用户可以访问最大的分组数据网络（PDN）&Internet。

GPRS networks provide packet-switched services based on internet protocol ( IP ), which make End-user can access the external packet data network & Internet .

在通信技术中，美国Telenet通信公司提供的分组交换传输业务网。

In communications , Telenet Communication Corporation , a packet switching transmission service .

通用分组无线交换业务的发展

The Development of General Packet Radio Switching Service

现在，移动通信网络不仅需要支持传统的话音业务，从长远角度来看，对于分组交换数据业务的支持显得越来越重要。

Now , the mobile communication network needs to support not only traditional voice services , long-term perspective , the support of packet data services become more and more important .

随着数字移动通信、互联网技术的发展，无线移动通信网络在支持现有电路交换的话音和可视电话业务同时，也需要支持分组数据交换业务。

As the digital mobile communication , Internet technology development , the network supporting the existing circuit-switched voice and video-based telephone services are also needed to support packet data exchange service .

分组交换数据传输业务

Packet switched data transmission service

NGN将是基于分组交换技术的全业务IP网络，支持电话业务、数据业务和视频流媒体业务等。

NGN will be an IP network with whole services based on packet switch technology , which will support telephone service , data business and video stream media service , etc. No.

近几年，固网数据和3G业务不断发展，必然要求传输网络的IP化，利用分组交换核心实现分组业务的高效传送。

In recent years , as the continually development of the fixed-line data and 3G services , there are a lot of requirement of IP-based transmission network inevitably in order to achieve efficient packet delivery by packet-switched .

分组交换网上的增值业务

Value Added Service on the Packet Switched Data Network

与此同时由于小粒度异步分组交换所带来的业务的自相似性（突发性）也随着网络容量的升级和业务的不断拓展而愈加明显，并成为网络性能恶化的主要因素之一。

At the same time , the self-similar of the data traffic , which caused by small granularity , asynchronous packets switching and the updating of network capacity is obvious .

分组传送网是一种面向连接的、基于分组交换的多业务传送技术，能够提供高效的多业务承载能力以及具有强大的操作管理维护能力。

Packet transport network is a kind of connection-oriented and packet-based multi-service transmission technology , which has a good capability of carrying multi-service and the ability to operation , administration and maintenance .

ATM交换技术融合了电路交换与分组交换的优点，在带宽统计复用、高速分组交换和保证不同业务的QoS等方面具有突出优势。

Asynchronous Transfer Mode ( ATM ) switching technology , which integrates the advantages of the circuit-switched and packet-switched , has outstanding advantages of statistical multiplexing in bandwidth , high-speed packet switching and guaranteeing the QoS of different services .