SGSN - GPRS服务支持节点 SGSN是英文SERVICING GPRS SUPPORT NODE的缩写SGSN作为GPRSTD-SCDMA(WCDMA)核心网分组域设备重要组成部分主要完成分组数据包的路由转发移动性管理会话管理逻辑链路管理鉴权和加密话单产生和输出等功能 SGSN即GPRS服务支持节点它通过Gb接口提供与无线分组控制器PCU的连接进行移动数据的管理如用户身份识别加
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1 设计总说明 设计依据.1 本地块规划控制指标与技术规定.2相关地形图.3 国家及地方现行设计规范 项目概括.1 区位.2 设计任务及功能要求2 总平面设计3 建筑设计 设计概念 外立面 功能分布及流线 可持续性 :
IntroductionBusiness logistics is the planning process as well as the implementation of efficient and effective storage of raw materials, inventory, finished goods and services It also refers to the
IntroductionCurrent organizational structure in …Alternative organizational structure for … Application of contingency approach in …Different line staff functional and lateral relationships with in th
INTRODUCTION As far as vehicles are concerned there are different means of transport. Some travel on roads such as bicycles buses motorbikes cars taxis some on rails like trains and trams and water l
Euphemism ismon linguistic phenomenon in different cultures. From the moment it is coined it plays an important role in peoples dailymunication. Without euphemism any language would seem to be
Introduction This research reporting presents a summary of results from the time use survey. Measuring the daily activity patterns of international students in the Navitas English provides time use p
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