在网络融合中无线接入的应用分析.docVIP

摘要：目前,全球电信运营商正面临着企业转型和网络融合(FMC),它使原本经渭分明的移动与固网的界限正在被一步步地“模糊化”,二者在多个层面的融合趋势已势不可挡。基于融合的思路来看未来的网络,无线接入技术多样化的趋势将越来越明显,无线接入网作为承载业务,直接面向用户的网络,是体现运营商的用户覆盖率和企业竞争力主要指标的关键之一,与核心网趋于融合的趋势不同,接入网层面将有众多技术百花齐放。如英国的“蓝色电话”采用DECT数字无绳电话系统对移动和固网进行无缝连接。国内“灵通无绳电话”是利用目前的小灵通无线网络直接与固网相连。而正在试验中的“家庭网络”是采用“蓝牙技术”或Wi-Fi无线技术来进行内部各终端之间的互连。还有技术先进,功能强大的WiMAX无线宽带技术应用于局域网和移动通信等领域。 关键词：无线接入；网络融合；桥梁和纽带 Abstract: At present, the global telecom operators are facing corporate restructuring and integration of the network (FMC), it was clear by Wei’s mobile and fixed boundaries are being step by step, fuzzy, both in the multi-faceted Integration trend has been unstoppable. Based on the idea of integration of view of the future network, wireless access technology to diversify the trend will become more and more apparent as the wireless access network carrying business, direct user-oriented network operator is reflected in the coverage of users and enterprise competitiveness?The爉ain one of the key indicators, the core network and the trend toward integration of different levels of access network technology will have a large number of letting a hundred flowers bloom. If Britain抯 blue phone use of DECT digital cordless telephonIne system for mobile and fixed network for seamless connectivity. Domestic well-informed cordless phone, is to use the current PHS wireless network directly connected with the fixed network. The test is the home network is a Bluetooth or Wi-Fi wireless technology to carry out internal interconnection between the terminals. There are technologically advanced and powerful WiMAX broadband wireless local area network technology and mobile communications and other fields.牋Key words: wireless access; network integration; bridge and link 无线接入是网络融合的桥梁和纽带 “蓝牙技术”,现在BluetoothSIG(蓝牙技术联盟)对蓝牙技术的定位是它可以广泛地应用于个人网络设备,如手机、电脑以及汽车免提系统。由于蓝牙技术目前专为个人网络应用而设,通过改进技术可以增加蓝牙技术在其它全新领域的应用。例如环境传感、家用电器遥控、家庭网络内部终端间的连接等。但是蓝牙技术存在着许多的不足。如:一是它的传输距离仅在十公尺左右。二是蓝牙芯片的价格仍不令人满意。三是蓝牙兼容性方面的一些问题。四是随着各种近距离无线技术的出现,它们与蓝牙技术就不可避免地要在一些应用领域存在