Computex 2008:WiMAX行不行(一)WiMAX为什么今年不MAX?
(上稿者按:由于我们Computex展时间都抓得很紧,再加上又是以产品为主,虽然会写到,但以写作型态而言,并不是很适合写WiMAX的东西,因为个人觉得WiMAX的观察,可能比实际的产品还来得重要。所以个人特别请对WiMAX有一定程度观察的写手,来写较为深度的报导,提供给读者。我是拗他写三篇,不过他只有交两篇。)
继去年10月火热登场的WiMAX Forum,结果今年的WiMAX EXPO却不如去年热闹,其实并不意外,毕竟去年WiMAX获得国际电信组织核可,正式成为3G的一员,不过WiMAX广义而言与3G并不相似,其它的3G通讯协议都有包含语音的部份,但是WiMAX却是以数据传输为主,唯一的转折点在于,由于获得认可,原本WiMAX一直未定案的频谱,终于可以与其它3G共享。也由于此缘故,去年WiMAX Forum声势大噪,各会员也将压箱宝拿出来展示。
上图是体验巴士,说真的,不是体验巴士不想玩,而是没啥好玩的。
[In depth report: Is WiMAX ready for us? (1 of 3)]
WiMAX seems to be an awesome solution to on-the-go connectivity. Since the WiMAX Forum was launched in October last year, we have covered all kinds of products and many possible applications of WiMAX. However, the WiMAX EXPO this year didn't turn out to be as popular as last year. What happened to this rising star? We will try to discuss the past, present and future of WiMAX in a series of three reports. Click on the link to read more.
所以该怎么说呢,WiMAX能干么,其实去年就展的差不多了,本来WiMAX能干么,其实说穿了也不过就是可以在
WiMAX was approved by ITU and became a member of the 3G family. However, in a broader sense, WiMAX is actually different from 3G. All the other 3G protocols include voice transmission, but WiMAX is solely based on data transmission. Nonetheless, the approval by ITU allows WiMAX to share the frequency with other 3G protocols. Therefore, WiMAX becomes the rising star of telecommunication, and the industrial partners of WiMAX Forum have unveiled all kinds of products.
So what exactly can WiMAX do? In simple terms, WiMAX is a long-range wireless network that allows you to stay connected at up to 80 km/hr. What you usually do on your computer at work or at home can now be done in your car (that is, if you have daredevil driving skills). Most of its application was already demonstrated last year, so there is really nothing new to see this year. Also, system providers will determine what to offer on the WiMAX network, and the end-user device will follow, not the other way around. As a result, the WiMAX EXPO is kind of boring this year, unless the Forum comes up with new applications. 
如果功耗问题能解决 WiMAX手持上网装置才有搞头
我稍微看了一下,今年比较特殊的应用,仅有大众与保全业者结盟的WiMAX运钞系统,那个无线提款机就算了,核心的价值在于运钞车采用WiMAX全程监视录像,这真的是WiMAX最大的卖点应用,如此一来,即便被抢劫,远程也还能保有全程的录像画面,不至于录像带被拿走。此外,WiMAX会对导航图资业者造成相当大的打击,尤其Google在美国投标

语音应用是笔者一直不得其解为什么非得用WiMAX不可的方向

偶然在EXPO看到的标语 公然宣称Wi-Fi已经过时 囧
其实WiMAX的应用中,对于其基本架构最不利的应用是室内的应用,由于WiMAX采用高频传输,遇到障碍会因为反射而衰竭,一到室内还是Wi-Fi比较实在。不过WiMAX也并非真的那么差,只不过请记得WiMAX目前的特性是:1.适合户外、.距离较长、可行动使用。2..不太省电,目前约1W,与Wi-Fi差不多。3.不是万能,请搭配Wi-Fi以及其它有线网络技术服用才能达到最佳使用效果。
下一篇(如果还有的话),小弟继续聊聊自己这半年多来对于台湾WiMAX营运商的观察。
[撰文:龚独升]










Reader Comments (Page 1 of 1)
hoohoog @ Jun 4th 2008 7:47AM
听说WiMAX和大陆的3G标准TD-SCDMA共用一个频率,所以二者无法共存,不知是不这样
Satan_L5 @ Jun 6th 2008 12:42AM
唉~™