核心网络

• This paper presents an access convergence router ( acr ) which directly connects users to core networks by using fiber ethernet p2p technology , well bearing the iptv operation
  摘要提出了一种大规模接入汇聚路由器，使用光以太网点对点接入技术，把用户直接接入核心网络，可完整地承载iptv业务。
• Based on ip technology , the core network of gprs can be connected to internet easily with a newly added service ggsn . thus bring the gprs system the ability to be smoothly developed to 3g network
  Gprs核心网络采用了ip技术,既可以与迅速发展的ip网络互联,又可以逐步向第三代移动通信系统演进。
• With the popularization of wlan , large numbers of correlative network products is needed . this paper designs a wireless access controller ' s system software based on ieee std . 802 . llb
  本课题正是针对在建立基于ieee802 . 11b标准的无线局域网解决方案中，所需要的一件核心网络设备?无线接入控制器( ac ) ，所设计的系统软件。
• Furthermore , the seamless combination of various wireless communication system using mobile ip is another promising of future framework of wireless network . in this thesis we study the following aspects
  此外，移动ip作为无线网络体系结构中的核心网络业务承载协议将各种无线通信系统结合起来，也是无线网络体系结构一个有前景的发展方向。
• In consideration of the quickly development of mobile phone , and the increase of internet access , the main task of new system will include voice and internet access . of course , these services are also supported by 2g
  核心网络可能是基于gsm的，提供到isdn pstn业务的接入；也可能是基于gprs ( genoralpacketradioservices )的，提供到internet或其它基于ip的分组网络的接入。
• Among such apis , parlay api which was proposed by parlay group provides new opportunities for rapid and efficient service creation by offering a standard way for the third party service provider to access and control core network resources
  其中, parlay组织提出的parlay规范,提供了向第三方接入和控制核心网络资源的标准api ,从而使得第三方业务提供商能够高效地进行电信业务开发。
• At last , we bring forward the countermeasure of the consummating for the cis from three sides : the optimizing of the core network , the supplementary network , the periphery - network , and the conclusion and academic prospect are educed too
  最后以集群创新系统的csp模型为基础，从核心网络学习环境优化、辅助网络学习环境优化和外围支持网络优化的三个方面提出完善集群创新系统的对策，并得出了本文的结论及以后研究的展望。
• Lucent technologies sold for the first time its lambdaunite multi - service switching equipment to the german telecom company . lambdaunite is lucent technologies next - generation optical transmission and switching equipment to be used as bridge of municipal area and core networks
  Lucenttechnologies将其lambdaunite多业务交换机首次卖给德国电信公司。 . lambdaunite是lucent的下一代光传送和交换产品，用作城域和核心网络的桥梁。
• The other two layers are constituted of leading and management departments of the university and the college . they direct and ensure the construction and operation of the core network . first , in the microcosmic aspect , they offer direction and service during the construction of the core network
  其作用的发挥主要体现在两个方面：一是微观指导作用，即在核心网络层的构建过程中，辅助支持层和领导协调层所给予的指导、服务与协调作用。