帮我翻译一段摘要，翻译成英文。尽快

来源：百度知道 编辑：UC知道 时间：2024/05/21 10:08:05
目前移动通信技术正处于一个变革的时代，GPRS是这个转变过程中至关重要的一步，它是在GSM网基础发展起来的一种数据分组交换和传送技术革新。本文主要阐述了GPRS的技术特点及其它的体系结构，并指出了它存在的一些问题和对策。GPRS网络在传统的GSM网络中引入了3个新的组件：PCU（Packet Control Unit：分组控制单元），SGSN（Serving GPRS Support Node：GPRS服务支持节点）和GGSN（Gateway GPRS Support Node：GPRS网关支持节点）。SGSN和GGSN相当于移动数据路由器，它们既可以被组合在同一个物理结点中，也可以处在不同的物理结点中，两者之间通过一个IP骨干网络互联。GPRS是一种新的GSM数据业务，它可以给移动用户提供无线分组数据接入股务。GPRS主要是在移动用户和远端的数据网络（如支持TCP／IP、X.25等网络）之间提供一种连接，从而给移动用户提供高速无线IP和无线X.25业务。
GPRS；移动数据路由器；PCU 翻译成英文

At present the mobile communication technology is being in a transformation the time, GPRS is in this transformation very important one step, it is one kind of data grouping which develops in the GSM net foundation exchanges and transmits the technological innovation. This article mainly elaborated the GPRS technical characteristic and other architecture, and had pointed out it exists some questions and countermeasure. The GPRS network has introduced 3 new modules in the traditional GSM network: PCU (Packet Control Unit: Packet control unit), SGSN (Serving GPRS Support Node:GPRS service support node) and GGSN (Gateway GPRS Support Node:GPRS gateway support node). SGSN and GGSN are equal to the motion data router, they already may combine in the identical physical point, also may occupy in the different physical point, between both through a IP backbone network interconnection. GPRS is one kind of new GSM data service, it may give the mobile subscriber to provide the wireless integra