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
