随着无线选项提高,网络是关键

这些最后几个星期看到的好的和坏的新兴无线平台和服务4.0苹果推出iPhone, Sprint给市场带来了期待已久的4 g EVO。但这些手机提供的进步,尤其是在视频中,受到担忧访问带宽。早在2008年Nemertes发表的一项研究中,“网络中断:为什么建筑限制将断裂的净。”我们指出,访问带宽限制将限制公共网络的能力来支持创新的新的应用,如视频。今天这些局限性是显而易见的。例如,iPhone 4前置摄像头能够支持视频聊天,但只有通过WiFi网络,只有当这些网络也不拥挤。(一个例子是苹果的需要强调的观众关掉自己的WiFi设备允许史蒂夫•乔布斯(Steve Jobs)的全球开发者大会演示)。Sprint EVO使用Clearwire的4 g服务,但4 g并不广泛使用虽然Clearwire积极增加新城市覆盖率地图。与此同时,美国电话电报公司(AT&T)宣布结束无限的3 g数据服务和是搬到一个分层模型。最高的最终计划包含额外的费用对于那些每月超过2 GB。 Enterprise mobility managers should understand that bandwidth limitations will impact your ability to deliver innovative new services to customers and users. We expect that access bandwidth concerns will drive interest in mobile application optimization as well as interest in protocols such as H.264 SVC to support high quality video over unreliable networks. We also expect to see service providers continue to invest in upgrading their data services as speed and availability become key differentiators in a highly competitive market.