private mobile radio system

This paper proposed an efficient handoff algorithm for heterogeneous networks,which are constructed by wireless local area network(WLAN) and universal mobile telecommunications system(UMTS).

针对移动台在异构网络之间切换性能不理想的问题,提出基于通用移动通信系统(UMTS)和无线局域网(WLAN)构建的具有接入控制单元(ACU)的异构网络模型。

As a family member of EVIT-2000, UMTS adopts WCDMA as its radio transmission technology, thus UMTS is well-known as WCDMA communication system.

作为3G候选方案之一，通用移动通信系统(Universal Mobile Telecommunication System,UMTS)采用宽带码分多址(Wide-band Code Division Multiple Access,WCDMA)作为其无线传输技术，因此也把UMTS系统称为WCDMA通信系统。

The Study and Implement of GSM-R Integrated Communication Project on Locomotive;

铁路专用移动通信系统车载综合通信平台研究与实现

Design and Implementation of Fault Diagnosis Expert System for Mobile Network Management;

移动通信网故障诊断专家系统的设计与实现

Research on Multiuser Detection in CDMA Mobile Communication System;

CDMA移动通信系统的多用户检测研究

The Apply Study of OFDM Used in Mobile Communication System;

OFDM技术在移动通信系统中的应用研究

The Application of Mobile WIMAX in Emergency Communication System

移动Wimax在应急通信系统中的应用

Perception on the Application of SDH in GSM-R Mobile Communication System

浅谈SDH在GSM-R移动通信系统中的应用

Global System for Mobile Communication

全球移动通信系统(

Research of SSRA/ALOHA in Mobile Communication System;

移动SSRA/ALOHA通信系统研究

General specification for trunked mobile communication system

GB/T15874-1995集群移动通信系统设备通用规范

defense special secure communication system

国防专用保密通信系统

Research on Mobility Management Technology in Mobile Communication Systems;

移动通信系统中移动性管理技术研究

Implementation of Mobile Value-Added Application Platform and System

移动通信增值应用平台及应用系统的实现

Research on Key Technologies for OFDM Mobile Communication Systems;

正交频分复用（OFDM）移动通信系统关键技术的研究

Research on Multiuser Detection for Wide-band CDMA Mobile Communication System;

宽带CDMA移动通信系统多用户检测技术研究

Turbo Product Code Techniques and Their Applications in Beyond Third Generation Mobile Communication Systems;

Turbo乘积码技术及其在B3G移动通信系统中的应用

Application of the Data Warehouse in China Mobile Communication System;

数据仓库在中国移动通信系统中的应用

Application Study on the Technology of Move Agent in the CDMA Communication System;

移动代理技术在CDMA通信系统中的应用研究

The Research of Space-Time Processing in CDMA Mobile Communication System;

空时二维处理在CDMA移动通信系统中的应用研究