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  3. 【In the forthcoming years，Beyond一3G(B3G)environments will undoubtedly be deployed in most parts around the globe，permitting a wo

【In the forthcoming years，Beyond一3G(B3G)environments will undoubtedly be deployed in most parts around the globe，permitting a wo

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问题 【In the forthcoming years，Beyond一3G(B3G)environments will undoubtedly be deployed in most parts around the globe，permitting a world class solution for network interconnection．AB3G context enables the efficient cooperation of existing wireless technologies，including cellular-based(e．g．2G／3G)，broadcast—oriented(e．g．DVB)一in specific DVB—H，and Internet—based(WLAN／WMAN)networks，all relying on enhanced IP as the unifying layer．Hence，in this particular and yet to be deployed environment，mobile systems and platforms will permit to provide enhanced services to all applications across heterogeneous access networks．This will effectively enlarge the scope of service deployment，availability and accessibility to the users．】
Based on the paragraph above，it is shown that(98)will be used as the higher layer protocol to unify cellular networks，broadcast networks and(99) networks，which is enabled by the context of(100)．
(100)
选项 A、IP network
B、B3G
C、Internet
D、deployed environment
答案B
解析 本题考查无线通信方面的基础知识。
毋庸置疑的是，在接下来的这些年内，全球大部分地方将部署超3G(B3G)网络，从而为网络互连提供全球范围内的解决方案。超3G环境依赖统一的增强型IP，能够联合蜂窝网(如2G／3G)、广播类网络(如DVB)或特定的DVB—H、基于因特网(WLAN／WMAN)等各种现有无线技术一起高效运作。因此，在这种部分发展或尚未发展的环境中，移动系统平台将为所有的应用通过多种网络接入方式提供增强服务。对用户来讲，它能够有效扩大业务的部署范围，提高有效性和可接入性。】
上面这段文章中显示增强型IP在超3G环境中将被用做统一蜂窝网、广播网、互联网等的高层协议。
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