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Description: 本文从 VoIP 技术的发展现状开始，分析了 VoIP 的发展方向，引入了软
交换和下一代网络的架构，讨论了软交换和下一代网络的功能、主要协议、
组网用途、和演进策略，介绍了软交换架构在下一代移动通讯网 UMTS 中的
应用。然后本文讨论了 H.323 协议的体系结构和它在软交换中应用的必要性
和可行性。之后，介绍了 SIP 网络与 H.323 网络地址解析体系的不同与互通
问题，研究分析了他们之间的互通寻址定位方案。 -paper from the VoIP technology development, the analysis of the VoIP development direction, introduction of the next generation soft switch and the network structure, discussed the next generation soft switch and network functions, the main agreement, Network use, and evolution strategy, introduced the soft structure of the exchange in the next generation UMTS mobile communications network applications. It then discussed the H.323 architecture and its application of soft switching the necessity and feasibility. , Introduced a SIP network with H.323 network address system of different analytical and communication problems Analysis of the exchange between them Addressable positioning program.
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Size: 693012 |
Author: 周东 |
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Description: 本文从 VoIP 技术的发展现状开始，分析了 VoIP 的发展方向，引入了软
交换和下一代网络的架构，讨论了软交换和下一代网络的功能、主要协议、
组网用途、和演进策略，介绍了软交换架构在下一代移动通讯网 UMTS 中的
应用。然后本文讨论了 H.323 协议的体系结构和它在软交换中应用的必要性
和可行性。之后，介绍了 SIP 网络与 H.323 网络地址解析体系的不同与互通
问题，研究分析了他们之间的互通寻址定位方案。 -paper from the VoIP technology development, the analysis of the VoIP development direction, introduction of the next generation soft switch and the network structure, discussed the next generation soft switch and network functions, the main agreement, Network use, and evolution strategy, introduced the soft structure of the exchange in the next generation UMTS mobile communications network applications. It then discussed the H.323 architecture and its application of soft switching the necessity and feasibility. , Introduced a SIP network with H.323 network address system of different analytical and communication problems Analysis of the exchange between them Addressable positioning program.
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Size: 693248 |
Author: 周东 |
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Description: NS2中要用到的TCL语言，详细讲解语法和结构。-NS2 in the use of the TCL language, explain in detail the syntax and structure.
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Size: 777216 |
Author: 朱云 |
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Description: UMTS系统无线网络结构和协议的长期演进,中国移动专家关于UMTS网络结构和协议与LTE的关系演讲资料。-UMTS system, the wireless network structure and the long-term evolution of the agreement, China Mobile experts on the UMTS network architecture and protocols and the relationship between LTE speech information.
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Size: 162816 |
Author: kyhao |
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Description: 通信技术发展要求蜂窝运营商必须能够支持新的3G技术，在一个充满竞争的市场机制下以合理的价格提供基于多媒体业务的无线Internet能力，本书以此为蓝图主要从3部分进行阐述：
·集中阐述了GSM系统如何完全无缝演化为支持UMTS业务的GERAN。部分内容还包括演化过程中涉及的功能、结构组成、系统统一以及3G网络提出的各种UMTS QoS要求等。
·从仿真和实际系统测试的角度阐述各种先进技术的性能。本部分全面讨论了GSM、GPRS、EDGE、AMR和支持3G业务的GERAN等系统工技术的特征和性能。同时也介绍了无线接入网络的自动规划、优化和运营方法和技术。阐述了跳频技术的自动规划和无线资源管理各参数的优化等，另外对系统出现故障或者崩溃的各种原因进行了分析。
·讨论了各种不同的3G无线技术，同时说明了GERAN在这些技术中所处的地位。分析了各种演化策略，描绘了3G多无线接入网络的场景，阐述了内在的GSM和WCDMA系统无缝融合技术。 -Communication technology requirements of the development of cellular operators must be able to support the new 3G technology, in a competitive market mechanism to provide a reasonable price of wireless multimedia services based on Internet capabilities, this book as a blueprint for the major part of from 3:
Focused on how the system completely seamless GSM Evolution UMTS business to support GERAN. Part of the contents of the course also includes the evolution of function, structure, systems, and unification of the various 3G networks UMTS QoS requirements.
Simulation and from the perspective of the actual system testing on the performance of various advanced technologies. A comprehensive discussion of this part of the GSM, GPRS, EDGE, AMR and support for 3G systems such as GERAN business techniques and performance characteristics. At the same time, also introduced an automatic wireless access network planning, optimization and operation of methods and techniques. On the automatic fre
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Size: 27729920 |
Author: 李东 |
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Description: UMTS中一种新的RAN结构及其接入控制技术的研究 论文重点研究了这种架构下的关键技术之一一呼叫接入控制技术。文章在分析未来移动通信系统特点的基础上，认为HCS(分层小区结构)是未来移动通信的主要覆盖模式。那么在HCS覆盖模式
下的IP．RAN中的呼叫接入控制策略可以分解为：无线资源部分的层选择技术、接入控制技术和切换技术和IP．RAN网络部分的接入控制技术、切换技术。-This paper focuses on the key technology of the framework of a call access control skills
Art. Based on the analysis on the future of mobile communication system, based on the characteristics of HCS (that stratified
District structure) is the main cover for future mobile communication mode. So in HCS coverage model
The IP. Under the call access control strategy RAN can be decomposed to the layer: wireless resources section
Select technology, access control technology and switching technology and IP. RAN the access control network part
Technology, switching technology.
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Size: 5510144 |
Author: zl |
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