Helping The others Realize The Advantages Of IS-856
Helping The others Realize The Advantages Of IS-856
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Radio Network Preparing and Optimisation for UMTS comprehensively points out tips on how to dimension, prepare and optimise UMTS (Common Mobile Telecommunications Process) networks. It introduces the Homes in the spread spectrum technique and delivers a normal overview on the Actual physical layer of UTRA FDD. The radio network organizing process for WCDMA is Plainly presented and in depth information on the way to dimension, system and rollout a 3G network, the two theoretically and practically is delivered.
开环功率控制 ： 开环功率控制是基于接收信号强度的预测进行的，它不需要反馈信息。在移动终端接入网络时，会根据信号的衰落特性预先设定发射功率。开环控制主要用于解决信号在传播过程中遇到的路径损耗问题。
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移动通信中，将话音信号转换为数字信号，给每组数据话音分组增加一个地址，进行扰码处理，并且将它发射到空中。
抗干扰能力 ：通过扩展信号频谱，减少了信号的能量密度，提高了信号对噪声和干扰的抵抗力。
This paper offers an overview of the basic radio interface principles for your 3G extended-phrase evolution notion, like OFDM and Sophisticated antenna Resolution, and provides efficiency benefits indicating to what extent the requirements/targets may be achieved.
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If you currently know the 3GPP specification or report amount, you will take a more direct route, by using the Specification Sequence web site or by using immediate access on the FTP server.
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Professionals: If you are a highly trained professional but new to mobile communications, it could seem challenging to compete with somebody that has a decade of knowledge while in the cellular industry. But not Everybody who performs Within this industry is usually current on the bigger picture along read more with the difficulties contemplating how speedily the industry evolves.
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预测模型的优化 ：通过机器学习等先进技术来预测无线环境的变化，实现更为智能的开环控制。