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Description: 电信研究院通信标准所3G资料第三代移动通信系统技术讲座 -WCDMA核心网子系统-Academy of Telecommunications 3G standard information the third generation mobile communication systems technology seminars - WCDMA Core Network Subsystem
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Size: 1203789 |
Author: 王振华 |
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Description: The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
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Size: 1355592 |
Author: 高飞 |
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Description: 电信研究院通信标准所3G资料第三代移动通信系统技术讲座 -WCDMA核心网子系统-Academy of Telecommunications 3G standard information the third generation mobile communication systems technology seminars- WCDMA Core Network Subsystem
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Size: 1203200 |
Author: Nick |
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Description: cdma2000空中接口技术规范-LAC层：本参考性技术文件是为适应CDMA蜂窝技术在我国的发展，保证不同厂家支持
cdma2000 的基站和手机在CDMA2000 网络内能够互通工作，并与支持IS-95A/IS-95B
的系统后向兼容，并且为了保证我国的国内开发有标准可依，为方便运营者的管理而编
写-cdma2000 air interface technology standard-LAC layer : The technical reference document for the adaptation of CDMA cellular technology in the development of our country. ensured that different manufacturers support cdma2000 base station and the CDMA2000 cell phone network to interconnection work and with the support IS-95A/IS-95B system compatibility, and in order to ensure the development of national standards to follow, in order to facilitate the operation and management of preparation
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Size: 1006592 |
Author: 胡志新 |
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Description: WCDMA中用于自适应语音编码AMR的标准C实现-WCDMA in the AMR speech coding for adaptive standard C to achieve
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Size: 296960 |
Author: huangtao |
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Description: The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
-The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
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Size: 1355776 |
Author: 高飞 |
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Description: 本文根据3GPP规范，对WCDMA的覆盖与容量规划进行了分析研究。WCDMA在接入技术上比2G有了很大改善，这也使相应的网络规划方法发生了改变。与以往2G网络规划的传统静态预测不同，设计好一个WCDMA网络关键在于如何平衡覆盖与容量的关系。
本文是按照网络规划步骤展开分析的。首先使用静态分析计算得到基站覆盖的大致距离，以确定区域的基站密度和分布，这是进行网络仿真预测的基础 然后分析单一业务时覆盖与容量的关系 最后使用MonetCarlo法仿真多业务混合时的覆盖与容量状况。文中针对仿真预
测中容易出现的问题进行了探讨，重点介绍了WCDMA传播模型的校正方法，同时使用一
种新的基于负荷估计的呼叫接入控制算法来更好地模拟用户的干扰水平，在一定程度上提高了仿真预测的准确度，为将来网络的建设提供了借鉴。
-The main body of a book GPP is standard according to 3 , the analysis having been in progress to the WCDMA coverage and capacities plans studies. WCDMA is compared to 2 G on cut-over technology have had very big improvement , this also makes the corresponding network plan method having happened change. Different from the tradition static state forecast that 2 G networks in the past plan, design that lie in the relation how to balance coverage and capacities how wonderful WCDMA network key be.
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Size: 6245376 |
Author: 周柒 |
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Description: 深圳鹏泰提供： www.letswireless.com.cn QQ:1013182577
EM770W产品描述_090417.pdf
华为3G模块WCDMA制式，能内置于笔记本中。-Shenzhen Tai-peng provide: www.letswireless.com.cn QQ: 1013182577 EM770W Product Description _090417.pdf Huawei 3G standard WCDMA module can be built into the notebook.
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Size: 1314816 |
Author: 城南 |
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Description: Description The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
The current ZIP file includes three different models: channel coding, spreading and modulation and the complete physical layer. Some of the functionalities included in the models are: channel coding and decoding, interleaving, rate matching, mapping to physical channel, spreading, modulation and Rake receiver.
To run the model, unzip the file and type wcdmademos.
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Size: 320512 |
Author: Luo Zongchao |
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Description: wcdma协议的标准文档，中文的,包括系统无线接口规范，物理层规范-wcdma protocol standard documents, in Chinese，including system radio interface technique specification, and etc.
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Size: 9579520 |
Author: aboo |
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Description: WCDMA 3GPP技术标准，学习开发WCDMA工程的人员必备参考的标准-WCDMA 3GPP technical standards, learning development of WCDMA works are an essential reference standard
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Size: 52224 |
Author: 荣慰 |
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Description: ＷＣＤＭＡ ＦＤＤ 物理层ｍａｔｌａｂ仿真-The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
The current ZIP file includes three different models: channel coding, spreading and modulation and the complete physical layer. Some of the functionalities included in the models are: channel coding and decoding, interleaving, rate matching, mapping to physical channel, spreading, modulation and Rake receiver.
To run the model, unzip the file and type wcdmademos.
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Size: 1679360 |
Author: hao |
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Description: WB-AMR VMR-WB 是新型可变速率多模式宽带语音编解码器，专为无线 CDMA 2000标准而设计，目的在于在 50 至 7000 HZ 的频带上进行语音编码，采样率为 16 KHZ。VMR-WB 基于 3GPP AMR-WB (G722.2) 编解码器，在每秒速率12.65 Kbit 上可实现互操作。 VMR-WB 工作模式有四种，具体选择哪种应视网络的流量情况而定。前三种模式专门针对 CDMA 系统，而第四种模式为 AMR-WB 互操作性模式。 VMR-WB 与 AMR-WB 的互操作性允许 GSM/WCDMA 与 CDMA2000 系统无须进行自动解码即可通信，这就不至于增加额外的延迟以及引起语音质量下降-WB-AMR VMR-WB is a new variable-rate multimode wideband speech codec designed for wireless CDMA 2000 standard design, aimed at 50 to 7000 HZ frequency band for voice coding, sampling rate of 16 KHZ. VMR-WB based on the 3GPP AMR-WB (G722.2) codec rate of 12.65 Kbit per second can be interoperable. VMR-WB mode four, the specific choice of which network traffic should be as the case may be. The first three models specifically for the CDMA system, while the fourth mode of AMR-WB interoperable mode. VMR-WB and AMR-WB allows the interoperability of GSM/WCDMA and CDMA2000 systems can not automatically decode the communication, which without increasing the delay and the additional decline in voice quality caused by
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Size: 189440 |
Author: 观光客 |
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Description: This document describes standard and proprietary AT commands
available for Sierra Wireless UMTS AirCard® mobile broadband
devices and AirPrime intelligent embedded modules.
Standard 3GPP AT commands for UMTS devices are described in
the following 3GPP (3rd Generation Partnership Project) standards
documents:
• TS 27.007 AT command set for User Equipment (UE)
• TS 27.005 Use of Data Terminal Equipment -- Data Circuit terminating
Equipment (DTE-DCE) interface for Short Message
Service (SMS) and Cell Broadcast Service (BSE)
Some standard 3GPP commands are NOT supported, or are partially
supported. These commands are identified in Supported GSM/
WCDMA AT Commands on page 15-This document describes standard and proprietary AT commands
available for Sierra Wireless UMTS AirCard® mobile broadband
devices and AirPrime intelligent embedded modules.
Standard 3GPP AT commands for UMTS devices are described in
the following 3GPP (3rd Generation Partnership Project) standards
documents:
• TS 27.007 AT command set for User Equipment (UE)
• TS 27.005 Use of Data Terminal Equipment -- Data Circuit terminating
Equipment (DTE-DCE) interface for Short Message
Service (SMS) and Cell Broadcast Service (BSE)
Some standard 3GPP commands are NOT supported, or are partially
supported. These commands are identified in Supported GSM/
WCDMA AT Commands on page 15
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Size: 400384 |
Author: xxmaxx74 |
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Description: Code division multiple access (CDMA) is a channel access method used by various radio communication technologies. It should not be confused with the mobile phone standards called cdmaOne, CDMA2000 (the 3G evolution of cdmaOne) and WCDMA (the 3G standard used by GSM carriers), which are often referred to as simply CDMA, and use CDMA as an underlying channel access method.
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Size: 15360 |
Author: vishnu |
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Description: 3G标准之一，目前技术最成熟的WCDMA，详细讲解，通信计算机人才必备-One of the 3G standard, currently the most mature technology, WCDMA, explain in detail the communication computer personnel necessary
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Size: 10238976 |
Author: 刘嘉宇 |
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Description: Symulink based LTE simulator. An antenna system simulator based on Simulink has been developed by the Chase and Charmant research centers at Chalmers, followed by the implementation of a WCDMA system as a standard in 3G. LTE (Long Term Evolution), as an important technique of 4G, is naturally the task of the next stage.
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Size: 996352 |
Author: Edfard |
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Description: Long-Term Evolution (LTE) is a new standard speci ed by 3GPP for fourth generation (4G)
wireless communications. LTE provides high spectral eciency, high peak data rates, short
round trip time, and frequency
exibility. It relies on the following technologies Orthog-
onal Frequency Division Multiplexing (OFDM) and Multiple-Input and Multiple- Output
(MIMO), robust channel coding, scheduling and link adaptation [1]. LTE is interoperable
with widely used technologies such as GPRS, WCDMA and HSPA, and this enables mobile
operators deploying LTE to provide a seamless service and multimode devices for customers.
Some companies have already launched commercial LTE networks, e.g., Verizon Wireless in
the United States and Vodafone in Europe.
Here,the throughput of LTE physical layer in downlink transmissions is carried out. The various steps like CRC,turbo coding, code block segmentation,scrambling, modulation and precoding are also carried out.-Long-Term Evolution (LTE) is a new standard speci ed by 3GPP for fourth generation (4G)
wireless communications. LTE provides high spectral eciency, high peak data rates, short
round trip time, and frequency
exibility. It relies on the following technologies Orthog-
onal Frequency Division Multiplexing (OFDM) and Multiple-Input and Multiple- Output
(MIMO), robust channel coding, scheduling and link adaptation [1]. LTE is interoperable
with widely used technologies such as GPRS, WCDMA and HSPA, and this enables mobile
operators deploying LTE to provide a seamless service and multimode devices for customers.
Some companies have already launched commercial LTE networks, e.g., Verizon Wireless in
the United States and Vodafone in Europe.
Here,the throughput of LTE physical layer in downlink transmissions is carried out. The various steps like CRC,turbo coding, code block segmentation,scrambling, modulation and precoding are also carried out.
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Size: 4096 |
Author: anju |
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Description: WCDMA FDD Simulink Models-The WCDMA Physical Layer Demo consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).
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Size: 1357824 |
Author: 曹一 |
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