DECT

A New Type of wireless Local Loop Constructed with the DECT Technology

利用DECT技术构成的新型无线本地环路

The DECT Communication Technology of Mobile Communication in the Future

未来移动通信中的DECT通信技术

Study on Mechanism of Mobile IP-based DECT System Accessing the Internet

基于MobileIP的DECT系统接入Internet机制的研究

Applying Packet Reservation Multiple Access Protocol in DECT Systems

分组预约多址协议在DECT系统中的应用

DECT Experimental Network in Shanghai

上海DECT试验网

DECT standard sets a cordless telecommunication framework for providing high quality voice and data services to a short distance area with high density of user .

可为高用户密度，小范围通信提供话音和数据高质量服务无绳通信的框架。

One of such technologies is introduced : Mobile IP-based DECT system , which promotes information services and the access ability to Internet over wireless communication networks .

基于MobileIP的DECT系统正是使用了这样一种技术，它可以促进无线通信网络的信息服务，提升其接入Internet能力。

This paper deals with Cordless LAN technique , based on DECT , and introduces its definition , network construction in main applicational environment , network protocol and technical advantages .

从泛欧无绳通信（DECT）标准出发，介绍了无绳局域网的概念，主要应用场合中的网络组成结构、协议及技术优势。

Now mainly there are three kinds of wireless telecommunication in the world , that is , the PHS by Japan , the DECT by Europe and the PACS by America .

目前，世界上主要有3种最有影响力的数字无线市化系统，它们是日本的PHS、欧洲的DECT、美国的PACS。

Relying on the DECT systems'adopted in the administrative headquaters , transportation companies and pump stations , the mobile communication system of the private pipeline communication network can be established to enhance work efficiency .

在管理基地、输油公司和各泵站采用DECT系统，可以形成管道通信专网的移动通信体系，提高办公效率。

From the perspectives of technologies and benefits to network operators and end users , described are the variety of Ericsson 's access products such as PON , RLL , DECT business systems and integrated access systems .

本文从技术和对运营部门及最终用户利益这两个角度，介绍了爱立信公司推出的无源光纤网、无线本地环路、DECT商用无绳电话系统和综合接入系统等各种用户接入产品。

DECT is an access technique that corresponds to the lower 3 layers of the OSI model , and has no agreement at physics construction and application layer in protocol , so a designer should design according to the customer 's demand .

DECT严格来说是一种接入技术，它对应于OSI的底三层，对于具体的物理结构和应用层方面没有在协议上作规定，所以设计者应该根据用户的需要作具体的设计。

The Time Division Duplex communication protocol scheme defined Aerial Interface , Physical layer , Medium Accessing Control layer , Data Link layer and Network layer by mainly referring to the DECT layer divide and command alternant model , and therefore is an integrated communication protocol scheme .

该通信协议方案主要参照DECT的协议模型的层次划分结构和信令交互模式，分别对空中接口、物理层、媒体访问控制层、数据链路层和网络层进行定义，形成了比较完整的通信协议方案。

Using dual-energy method , we could minimize the error due to the effect of fat . In this paper , after briefly introducing the QCT method of single and dual-energy ( SECT and DECT ), the system and random error were analysed and compared quantitatively .

对两种双能量方法定量地分析了它们的系统误差和随机误差，并与单能量方法的误差对照。

Researching the integration of DECT with the Internet is important due to the continuing phenomenal popularity of the Internet and wireless communications , and ubiquity of DECT systems , which will contribute to impulse the application and development of the wireless access technology in our country .

由于Internet与无线通信的日益流行，以及DECT系统的大量使用，对DECT与Internet的集成进行研究，就具有了重要的意义，这将有力地推进无线接入技术在我国的应用与发展。

In this paper , the analog to digital evolution process of the public cordless telephone system is reviewed and several digital cordless telephone technologies such as CT2 , DECT , PHS and PACS are analysed and compared . The cordless telephone development strategy is put forward .

本文回顾了公用无绳电话系统从模拟到数字的演变过程，分析和比较了CT2、DECT、PHS和PACS等几种数字无绳电话技术，进而提出了我国发展无绳电话的策略。

DECT can be interfaced to the Internet to provide seamless access . The interconnection of DECT to Internet is , however , inadequate to support wide-area mobility because the Internet is based on the Internet Protocol ( IP ), which does not facilitate host mobility between different subnetworks .

DECT能无缝接入Internet，但由于Internet是基于IP的，IP并不支持主机在不同子网间的移动，故这种接入的移动范围是有限的。