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介绍全球个人通信的概念,系统所具备的优点及发展现状,网络的结构、性能和特点,提出我国发展个人通信的战略决策建议。  相似文献   

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本文在明确了个人通信的概念后。介绍了目前个人通信的主要系统制式及市场发展现状。作者还对PCS的发展前景及面临的问题谈了见解。  相似文献   

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本文谋略从尽可能通俗的语言,简要介绍有关个人通信的概念,个人通信网应具备的特点、功能及其网络结构,实现个人通信网的途径和遇到的主要难题等。  相似文献   

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个人通信与全球通信网   总被引:1,自引:0,他引:1  
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谈振辉 《世界电信》1996,9(1):20-23
本文简要介绍了无线个人通信网,主要讨论了无线个人通信网的频谱分配、移动管理、呼叫和流量控制、智能网结构、网络规划和设计等技术问题。  相似文献   

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IEEE 802.6 metropolitan area networks (MANs) providean efficient architecture for supporting wirelesspersonal communication services (PCSs) overmetropolitan areas by interconnecting wireless basestations into personal communication networks (PCNs).They also serve as peripheral gathering networks totransport PCS traffic over a wide area broadbandintegrated services digital network employingasynchronous transfer mode (ATM), enabling integrationof PCNs in different cities into a global PCN. Bycombining the various access methods and employing adynamic bandwidth integration scheme, a MAN canfunction as a powerful distributed switch forintegrating different types of local traffic.Simulation results are presented to illustrate theadvantages of the integration scheme. To provideubiquitous PCS, we also propose a simplesuffix-dialing method for integrating telephone, fax,paging and email services over the ATM/MAN-based PCNsusing a single personal telecommunication number. Withthis method, the current practice of printing a longlist of phone numbers on one's business card will nolonger be necessary.  相似文献   

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介绍个人通信网(PCN)的关键技术,如网络结构、智能网技术、接入网技术、多媒体技术、移动管理和网络控制等,论述了国内外的研究发展现状,讨论了PCN发展中的一些其它问题。  相似文献   

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A Protocol for Multimedia CDMA Personal Communication Networks   总被引:2,自引:0,他引:2  
Xie  P.  Gunawan  E.  Soong  B.H.  Soh  C.B. 《Wireless Personal Communications》2000,14(3):275-301
In this paper, a joint CDMA/TDMA protocol has been proposed for integratedvideo-phone/voice/data traffic in personal communication networks (PCN). Thevideophone service is implemented according to H.261 standard. The concept ofdynamic boundary is adopted in both code and time domains to meet thedifferent requirements for videophone, voice and data traffic.Two mathematical analysis methods are adopted to evaluate the systemperformance. One is the traditional Markov analysis (TDMA), which is used tocalculate the average videophone and voice call blocking probabilities. Theother is Transient Fluid Analysis (TFA), which is adopted to evaluate the datadelay and channel utilization performance. Results show that two dynamicboundaries can be adjusted to achieve the optimal system performance, andsuggestions of how to adjust these boundaries are also given.  相似文献   

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简述移动用户设备和个人通信系统,讨论了个人通信系统与移动用户设备集成及其未来的发展。  相似文献   

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陈玉 《江苏通信技术》2003,19(4):23-26,30
分析了现有移动通信网络存在的问题,阐述了第2代移动通信核心网向第3代移动通信核心网演进的必然性:讨论了第2代移动通信核心网向第3代移动通信核心网演进所采用的演进策略,介绍了两种可供选择的全IP核心网络的参考结构。  相似文献   

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Distributed control schemes allow base stations in personal communication systems to be placed at locations corresponding to high expected traffic. This flexible base station placement creates significant overlapping coverage areas that can be utilized to improve system performance [1]. A new technique for dynamic base station selection in systems with overlapping cells is considered and its effect on traffic performance is characterized. The technique realizes robust performance for personal communication systems in fluctuating and heavily tapered traffic. A mathematical analysis based on a state transition model is used to evaluate performance of a system that employs the proposed technique. The results indicate that improved blocking probability and carried traffic performance are obtainable. Computer simulations were undertaken confirm the analytical results.  相似文献   

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自个人通信作为第三代移动通信的创新概念提出以来,CDMA 技术以它大容量、抗衰落、软切换、低功耗的特点,在个人通信中占据越来越重要的地位。本文对 CDMA 个人通信的技术特点、系统方式、应用发展和面临的新挑战进行了讨论。  相似文献   

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The high expectations and demand for users to access the Internet from anywhere at anytime has made user mobility an important part of the design and development of the next generation mobile communications and computing. Traditionally user mobility has been divided into two areas: Terminal Mobility and Personal Mobility. In recent years terminal mobility has focused on the movement of the terminal and developed extensions to IP protocols such as Mobile IP. In contrast, personal mobility has only received limited attention, and is somewhat lagging behind. This research has either focussed on personal mobility in communications or personalisation of operating environments. As a result, to date no framework for providing true personal mobility has emerged. In this paper, we introduce a new personal mobility framework called IPMoA (Integrated Personal Mobility Architecture), which integrates both aspects of personal mobility to provide a complete personal mobility solution, and illustrate the viability of this approach through a proof-of-concept implementation.  相似文献   

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基于ATM技术的无线个人通信网   总被引:1,自引:0,他引:1  
吴晓文  吴诗其 《电信科学》1995,11(12):18-24
本文介绍一种未来的基于异步转移模式技术的无线个人通信网,对其支持的业务种类,系统设计准则,体系结构和网络构成进行了详细描述。  相似文献   

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本文简要介绍了无线个人通信网的基本概念和网络结构,讨论了实现无线个人通信的3种方案,并指出其关键技术。  相似文献   

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