If the total transmit power is fixed then the optimization target is to maximize the number of user the system can support .

如果系统总的发送功率固定，那么优化 目标是使 系统支持的 用户数最大化。

Firstly based on the function and business requirement of system 's target user the thesis designed and implemented two important systems of the simulation platform : the coding system and the helping system .

首先，文中根据系统 目标 用户的功能和业务需求，设计并实现了构成仿真平台的两大系统：编码 系统和帮助支持系统。

In addition to the use of pre-defined target system developers can construct a new object ( known as user objects ) to expand the system of pre-defined target the target will be a variety of organically combined to form the PowerBuilder application .

除了使用系统预先定义的 对象外，开发人员可以自行构造新的对象（称作 用户对象），扩展 系统的预定义对象，将各种对象有机地组合起来就构成了PowerBuilder应用程序。