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通信网络 异频切换测试报告
在百色郊区割接的基站中有两载波的百色市火车站和Pilot Beacon基站(交警大厦),两个基站的直线距离为1.127Km(使用Mapinfo测算的距离),存在201通过PB向283的异频硬切换(包括Data & Voice)。
书籍 Radio_Frequency_Modulation_Made_Easy
By inventing the wireless transmitter or radio in 1897, the Italian physicist Tomaso
Guglielmo Marconi added a new dimension to the world of communications. This
enabled the transmission of the human voice through space without wires. For this
epoch-making invention, this illustrious scientist was h ...
书籍 VoIP+and+Unified+Communications
This book intends to prepare you to define Unified Communications (UC) for
yourself and then get it to work for you.
Each vendor pulls together from its available products a package of features
related to voice, data, messaging, and image communications. That’s UC for
one vendor, but it’s unlikely ...
书籍 Ambient Networks
One traditional view of how wireless networks evolve is of a continuous, inevitable progres-
sion to higher link speeds, combined with greater mobility over wider areas. This standpoint
certainly captures the development from first and second generation cellular systems focused
on voice support, and ...
书籍 Radio+Resource+Management+Strategies
It is more than a decade since GSM was first commercially available. After some unexpected delay, it
seems that finally UMTS is here to stay as a 3G system standardised by 3GPP, at least for another ten
years. UMTS will enable multi-service, multi-rate and flexible IP native-based mobile technologie ...
书籍 Compressive+Sensing+for+Wireless+Networks
Over the past few decades, wireless communications and networking have witnessed an
unprecedented growth, and have become pervasive much sooner than anyone could have
predicted. For example, cellular wireless networks are expected to become the dominant
and ubiquitous telecommunication means in the ...
书籍 Mobile and Wireless Communications
There are few technologies that have had a more profound effect on people’s lives
than mobile communications. As recently as twenty years ago no one had a mobile
phone, while today 1.4 billion men, women and children depend on them. This now
exceeds the number of landline users, where it took the p ...
书籍 WCDMA for UMTS HSPA Evolution and LTE
Second-generation telecommunication systems, such as the Global System for Mobile
Communications (GSM), enabled voice traffic to go wireless: the number of mobile phones
exceeds the number of landline phones and the mobile phone penetration is approaching
100% in several markets. The data-handling c ...
书籍 Foundations of MEMS
Five years have passed since the first edition of this book was published.Over the five years,the
world has witnessed a technological revolution headlined by an array of exciting consumer and
industrial products such as the Nintendo Wii, Apple iPod/iPad, sensor-rich smart phones,
phones with cameras ...
技术资料 基于软交换的媒体服务器的研究与设计
·摘要:  指出了媒体服务器在下一代网络中的位置.论述了媒体服务器涉及的关键技术,包括各种控制协议、基于硬件和基于软件的DSP(Digital Signal Processing)技术Voice eXtensible Markup Language(VoiceXML)语言等.利用逻辑视图、运行视图和部署视图对媒体服务器进行了总体设计,对于同行具有借鉴意义. ...