Contents Preface xi Acknowledgements xiii Abbreviations xv 1 Introduction 1 Harri Holma and Antti Toskala 1.1 WCDMA technology and deployment status 1 1.2 HSPA standardization and deployment schedule 4 1.3 Radio capability evolution with HSPA 6 2 HS
Foreword ............................... xvii Preface ................................xix Acknowledgments ..........................xxi Part I—Introduction to Game Development Chapter 1 What Does This Book Cover? ............3 How to Make a Game....
实时传送协议(Real-time Transport Protocol或简写RTP,也可以写成RTTP)是一个网络传输协议,它是由IETF的多媒体传输工作小组1996年在RFC 1889中公布的。 RTP协议详细说明了在互联网上传递音频和视频的标准数据包格式。它一开始被设计为一个多播协议,但后来被用在很多单播应用中。RTP协议常用于流媒体系统(配合RTCP协议),视频会议和一键通(Push to Talk)系统(配合H.323或SIP),使它成为IP电话产业的技术基础。RTP协议和RTP控
集群是用于调度指挥的移动通信系统。PTT功能(Push To Talk,一键呼叫到目标,被叫不摘机接听)是专用调度指挥通信中最重要的功能。集群系统是专网专用,能有效防止外界干扰的特点,是调度指挥选择集群系统的主要原因。 集群工作方式:信道集中控制,用户共用数量相对有限的信道资源,与电话交换系统、GSM网络的信道分配方式相同,此外,集群的阻塞率(呼损)明显低于常规。而且,集群终端所具备的IIC级(最高级)防爆功能,更使得石化行业对集群通信系统更加青睐有加。例如,中海壳牌,集群防爆对讲机是唯一允许
Docker-in-Action.pdf In 2011, I started working at Amazon.com. In that first week my life was changed as I learned how to use their internal build, dependency modeling, and deployment tool- ing. This was the kind of automated management I had always
XMPP Powers a wIde range of aPPlIcatIons including instant messaging, multi-user chat, voice and video conferencing, collaborative spaces, real-time gaming, data synchronization, and even search. Although XMPP started its life as an open, standardiz
博世 VSS7390 / VS7390 系列 4 路输入彩色切换台系统 用户使用说明书pdf,博世 VSS7390 / VS7390 系列 4 路输入彩色切换台系统 用户使用说明书VSS7390/01T Switcher Operating Instructions Chapter 1
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罗克韦尔 光伏自动化解决方案pdf,罗克韦尔 光伏自动化解决方案A safety system using machine guarding helps protect
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广州德亨信息技术有限公司成立于2005年,是一家专注于北斗/GPS /GIS 全球公网定位系统研究,poc(push to talk over celluler)语音技术的公网集群通信系统开发,无线电通讯及数字化采集系统的软、硬件产品研发、生产、销售及服务为一体的高新技术企业。截至目前,公司已服务客户1000多家、在线终端用户达20多万。