Description: NOKIA《WCDMA技术与系统设计》第三版(中文)机械工业出版社出版。内容包括：UMTS 业务和应用、WCDMA 导论、WCDMA 的产生背景及标准化、无线接入网体系结构、物理层等。是一本不可多得的关于WCDMA技术的经典书籍。-NOKIA " WCDMA technology and system design," third edition (English) Mechanical Industry Publishing House. Include: UMTS services and applications, WCDMA Introduction, WCDMA and standardization of background, the wireless access network architecture, physical layer and so on. Is a rare classic on the WCDMA technology books. Platform: |
Size: 9165824 |
Author:yuan |
Hits:
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 Platform: |
Size: 27729920 |
Author:李东 |
Hits:
Description: this the matlab code by using the direct AOA algorithm for finding the direction of arrival of the smart antennas-this is the matlab code by using the direct AOA algorithm for finding the direction of arrival of the smart antennas Platform: |
Size: 2048 |
Author:raki |
Hits:
Description: 6本关于3G,WCDMA的经典书籍，英文版，pdf格式，包括：WCDMA for UMTS Adaptive WCDMA W-CDMA Mobile Communications System W-CDMA and cdma2000 for 3G Mobile Networks Broadband Wireless Access 3G Handset and Network Design -6 classical English books on 3G and WCDMA,including ：WCDMA for UMTS Adaptive WCDMA W-CDMA Mobile Communications System W-CDMA and cdma2000 for 3G Mobile Networks Broadband Wireless Access 3G Handset and Network Design Platform: |
Size: 51823616 |
Author:foxqx |
Hits:
Description: THE recent progress in radio communications today provides
several network access technologies for wireless
connectivity, e.g., IEEE 802.11, WiMAX and UMTS. At
the same time, advances in microelectronics allow all these
technologies to be exploited within a single mobile device
equipped with multiple radio interfaces. As a consequence
of these facts, many new challenges have arisen for the
telecommunication research community. Platform: |
Size: 320512 |
Author:raghaw |
Hits:
Description: The voice channel in mobile communication systems have high priority and are
almost always available. By using the voice channel also for data transmissions it
is possible to get the same availability as for voice calls. But due to speech codecs
in the voice channel, regular modems can not be used and special techniques are
needed to transmit data.
This thesis presents methods to transmit data over the voice channel in a GSM,
UMTS or TETRA network. The focus has been on robust data transmission rather
than high data bit rates. Approaches are introduced which improve the reliability
for transmissions even for systems with low rate speech codecs and channels with
some distortion.
The results of the thesis are suggestions of symbol patterns and ways to create
and adapt symbols for specific application and channel conditions to achieve the
desired goal for the application Platform: |
Size: 688128 |
Author:阿铁 |
Hits:
Description:
W-CDMA stands for Wideband Code Division Multiple Access
Its an air interface standard found in 3G mobile telecommunications networks designed for “always-on” packet-based wireless service, so that computers entertainment devices and telephones may all share the same wireless network and be connected to the internet, anytime anywhere.
It was adopted as a standard by the ITU under the name "IMT-2000 direct spread."
It is the technology used in the Universal Mobile Telecommunications System (UMTS) and is also known as UMTS-FDD.
It utilizes the DS-CDMA channel access method and the FDD duplexing method to achieve higher speeds and support more users compared to most time division multiple access (TDMA) schemes used today.
Platform: |
Size: 1129472 |
Author:Aanandha Saravanan |
Hits:
Description: Radio Network Planning and Optimisation for UMTS 2nd ed.一书的源码-Radio Network Planning and Optimisation for UMTS-NOkia Platform: |
Size: 314368 |
Author:徐青 |
Hits:
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.
Platform: |
Size: 5510144 |
Author:zl |
Hits:
Description: The Universal Mobile Telecommunication System (UMTS) offers a consistent set of services to mobile computer and phone users and numerous different radio access technologies will co-exist within the UMTS system’s core network – security is, therefore, of the utmost importance.
UMTS Security focuses on the standardized security features of UMTS and brings together material previously only available in specifications, design documents and presentations in one concise form. In addition, this unique volume also covers non-standard implementation specific features that allow differentiation between operators and manufacturers.
Describes the security solutions specified for UMTS-The Universal Mobile Telecommunication System (UMTS) offers a consistent set of services to mobile computer and phone users and numerous different radio access technologies will co-exist within the UMTS system’s core network – security is, therefore, of the utmost importance.
UMTS Security focuses on the standardized security features of UMTS and brings together material previously only available in specifications, design documents and presentations in one concise form. In addition, this unique volume also covers non-standard implementation specific features that allow differentiation between operators and manufacturers.
Describes the security solutions specified for UMTS Platform: |
Size: 1835008 |
Author:Globalcitizen |
Hits:
Description: UMTS 网络的切换技术文档，对于研究网络切换技术的人来说，可以用它来进行比较分析-Technical documentation of the UMTS network switch for network switching technology, people can use it to carry out a comparative analysis Platform: |
Size: 1625088 |
Author:胡雯萱 |
Hits:
Description: Technological and security enhancements in third generation (3G) architecture led to the development of the fourth
generation (4G) technology. 4G is developed and standardized by the 3GPP which is a fully IP based topology and also referred
to as the future communication technology. 3GPP provided LTE (Long Term Evolution) usually referred to as the standard for
fourth generation telecommunications. This paper reviews the core architecture of the 4G network and also reviews the
Authentication and key agreement (AKA) protocol as the access mechanism to a 4G network which shows the strong security
aspects of the fourth generation technology. Platform: |
Size: 259072 |
Author:aliaskari
|
Hits:
Description: In this paper, The authors will discuss the proceeding of this device and the necessary
conditions in detail (see Chapter 4). Chapters 2 and 3 will obtain the background
knowledge of the network standards GSM and UMTS, which we will need for
comprehension. The conclusion is given in Chapter 5. Platform: |
Size: 410624 |
Author:aliaskari
|
Hits:
Search - network for UMTS