新通信专业英语 中国通信学会普及与教育工作委员会推荐教材 教学课件 王雨连 孙青华 杨廷广 Unit 3 work Optimization.ppt

在线教务辅导网:
教材其余课件及动画素材请查阅在线教务辅导网
QQ:349134187 或者直接输入下面地址:
http://shop106150152.
Unit3
work Optimization
Communication English
Contents
WCDMA/UMTS Optimization Methodology
1
Wireless/Radio-Frequency
Enginnering Services
2
Exercises
3
UNIT 3 work Optimization
4
WCDMA/UMTS
Optimization Methodology
Reading 1
UNIT 3 work Optimization
5
Contents
Text
I
Difficult Sentences
II
New Words and Phrases
III
WCDMA/UMTS Optimization Methodology
Network optimization can initially be seen as a very involving task as a large number of variable are available for tuning impacting different aspect of work performance. To simplify this process a step by step approach is proposed in Figure 6 [3]. This approach divides the optimization in simpler steps, each step focusing on a limited set of parameters:
6
首先网络优化可以看作是一项复杂的任务,因为协调网络各方面性能涉及许多变量。图1提出了简化这一程序的步骤。这一方法把优化分为简单几步,每一步关注有限的一组参数。
WCDMA/UMTS Optimization Methodology
·RF optimization will focus mainly on RF configuration and in a lesser extend on reselection parameters.
·Voice optimization will focus on improving the call setup (Mobile Originated and Mobile Terminated) and call reliability thus focusing mainly on access and handover parameters.
7
·无线优化主要关注射频配置,其次是重选参数。
·语音优化关注改进通话建立(移动起呼和终呼)以及通话可靠性,因此主要关注接入和切换参数。
WCDMA/UMTS Optimization Methodology
·Advance services optimization will rely extensively on the effort conducted for voice. The initial part of the call setup are similar for all type of services and vendor have not at this point defined different set of handover parameters for different services. Consequently, optimizing these services will focus on a limited set of parameters, typically power assignment, quality target, and Radio Link Control (RLC) parameters.
8
·增值业务优化是基于对语音业务的优化。对于各种服务来说通话建立的起呼方都是相似的,供应商在这一点上还没有为不同的业务定义不同的切换参数。因此,优化这些服务就要关注有限的一组参数,主要是功率分配,质量目标以及无线链路控制参数。
WCDMA/UMTS Optimization Methodology
·Inter-system (also known as inter-RAT) change (both reselection and handover)