第三代移动通信系统

然后研究了分层空时码在第三代移动通信系统中的解决方案，提出了分层空时码在话音业务中的解决方案；

Thirdly , we research the settle scheme of layered space-time code in 3Gpp . provide it 's application in voice service .

3G（Thethirdgeneration），即第三代移动通信系统，是未来移动通讯的发展方向。

3G ( the third generation ) is the future direction of mobile communications .

第三代移动通信系统采用宽带CDMA技术，其主要目标是实现任何人可以在任何时间、任何地点进行任何方式的通信。

The third generation mobile telecommunication system utilizes wide-band CDMA as its multiple access .

第三代移动通信系统与宽带CDMA技术

The Third-Generation Mobile Communication System and W-CDMA Technology

第三代移动通信系统及WCDMA容量的分析

Introduction for Third-Generation Mobile Communication System and Capacity Analysis for WCDMA

目前第三代移动通信系统（3G）逐渐成熟正在走向商用阶段。

Nowadays , the third generation mobile communication system is gradually moving towards the commercial stage .

本文主要介绍鉴权密钥AKey在第三代移动通信系统中的产生和分配机制，讨论了当前存在的几种方案，介绍了一种有效的AKey分配机制。

This paper mainly introduces the generation and distribution of the A Key in 3G . After discussing the present several mechanisms , we introduce an efficient A Key distribution method .

随着人们对终端数据速率要求的不断增高，继第三代移动通信系统之后国际上新一代的移动通信标准LTE（LongTermEvolution）应运而生。

With the growing demand of data rate , LTE ( Long Term Evolution ) comes after the third generation mobile communication system .

第三代移动通信系统TD-SCDMA信令测试软件

TD-SCDMA Signaling Testing Software of 3G Mobile Communication System

第三代移动通信系统（3G）的出现使在无线网络中提供各种视频业务成为可能。

The emerging of third generation mobile system ( 3G ) makes various video applications in wireless environment possible .

由于CDMA技术具有灵活支持多种业务的优点，因而被第三代移动通信系统所采纳。

CDMA technique is adopted by the 3rd generation mobile communication systems due to its flexibility in supporting multi-services .

这种新的编码机制与目前通信系统中普通的卷积编码方式相比，其纠错性能有了很大的提高。Turbo码已经被国际电信联盟提议用于第三代移动通信系统中。

Turbo Code , a channel coding scheme introduced in 1993 has been proposed for third generation mobile communication systems .

Turbo码的优良性能，受到了移动通信领域的广泛重视，在第三代移动通信系统中，非实时的数据通信广泛采用了Turbo码。

The performance of turbo codes is so excellent that it has been paid attention to by mobile communication field .

在市场需求和技术进步推动下，第三代移动通信系统（3G）应运而生。

For that , the third generation ( 3G ) mobile communication systems are come into being by the market demand and technology-driven .

调查研究显示码分多址（CDMA）是第三代移动通信系统的最强候选者。

Investigations show that code division multiple access ( CDMA ) is the most powerful candidate of the third generation mobile communication system .

第三代移动通信系统UMTS的概况

An Overview of the 3rd Generation Mobile Communications System UMTS

无线接入承载（RAB）重建过程是TD-SCDMA第三代移动通信系统数据传输的一个重要过程。

RAB re-establishment is an important procedure for the third generation TD_SCDMA in data transfer .

本文以第三代移动通信系统作为平台，对混合ARQ技术做了深入的探讨和研究。

On the platform of 3G communication systems , this paper studies the hybrid ARQ techniques .

自适应多速率（AMR）算法是第三代移动通信系统中语音业务所采用的语音编码标准。

AMR ( Adaptive Multi-Rate ) standard is adopted by 3G system in speech service .

基于码分多址接入（CDMA）的第三代移动通信系统将支持语音、视频、email，FTP，Web浏览等多种业务传输。

The 3G mobile communication system based on CDMA technique is expected to provide multi-services such as speech , video , email , FTP , Web browsing , etc.

在第三代移动通信系统WCDMA系统中，功率控制和系统容量是两个最重要的系统特性。

Power control and system capacity is the two most important system characteristics in the third generation mobile communication WCDMA system .

因此，在第三代移动通信系统（3G）的市场竞争中，未来采用TD-SCDMA技术和设备的移动通信运营商具有明显优势。

In the future , all these benefits will give mobile communication operators using TD-SCDMA equipment obvious advantage in the competitive 3G wireless market .

WCDMA（宽带码分多址）系统是第三代移动通信系统的实现方案之一。

WCDMA ( Wide-band code division multiple access ) system is one of schemes to realize the third generation mobile communication system .

MC-CDMA中的主要干扰与第三代移动通信系统CDMA一样，也是多径干扰和多址干扰。

As CDMA , Multi-path Interference ( MPI ) and Multi-address Interference ( MAI ) also constitute the major interference in MC-CDMA .

TD-SCDMA是由中国提出的第三代移动通信系统，能灵活的提供各种宽带多媒体业务。

TD-SCDMA is the 3rd generation mobile communication standard proposed by China , and the system can support flexible broadband multimedia services .

伪随机码（PN）具有良好的相关性和伪随机性，在第三代移动通信系统中起着重要作用。

PN ( Pseudo Noise ) code has good correlation and pseudo-randomness , which plays an important role in the third generation mobile communication system .

无可质疑，随着3G（指第三代移动通信系统）时代的到来，移动通信市场的竞争将更加日趋激烈。

There is no doubt that the competition of mobile telecommunication market will become more and more furious when 3G ( 3rd . Generation ) network service comes .

新兴的第三代移动通信系统（3G）以能提供更高的速率、更好的质量和支持更多的业务获得了广泛的关注。

The emerging third-generation mobile communication systems ( 3G ) could provide a higher speed , a better quality and support more services to obtain the widespread attention .

本文针对第三代移动通信系统WCDMA方案，提出了功率控制中的信噪比的测量算法及修正曲线；

An algorithm and a correction function for calculating SIR are introduced in WCDMA , the3 ~ ( rd ) generation mobile communication system .

高速率、大容量、全方位的第三代移动通信系统（3G）应运而生，并制定了相应的3G标准。

So the third generation mobile communication system ( 3G ) appeared with high-speed , big capacity and integrated service , and the standards for 3G have been established .