科技部为“新一代宽带无线移动通信网络”举行了特别新闻发布会。(2)

我先说这个，谢谢大家！

陈传宏：

问题会议从下面开始。提出问题时，请通知您的新闻机构。

人民通事故。如果我们的高速公路以每小时200公里的速度行驶，我们如何通过移动通信快速做出响应，以实现车辆与道路之间的通信？ ，这需要1毫秒的延迟，而当前的4G延迟为10毫秒，这意味着该延迟应减少90％。有了这样的经验，它不仅可以用于车辆互联网和高度可靠的高铁，而且现在更时尚的VR，AR，虚拟现实和增强现实不仅需要带宽，而且还需要更少的延迟。为什么？戴头盔观看内部预装的无法满足您的AR和VR需求。您必须实时连接到云。连接到云需要大带宽和低延迟。 AR和VR需要您做出回应。说这边有反应，那边没有。

因此，低延迟和高可靠性也是不错的应用。一般来说，AR和VR人们会想到游戏。实际上，发达国家将AR和VR视为工业应用，例如如何通过虚拟现实模拟我们要开发的设备，以及如何培训我们的工人通过VR掌握维护方法。这里有许多可以在工业中使用的应用程序。第三种应用场景是低功耗和大连接。 5G的目标是每平方公里有100万个传感器，物联网节点可以连接到高密度的Internet。在节点上，面对物联网的原因是要适应现在提出的需要传感器的工业4.0、工业互联网和智能城市。而且，当前的物联网一般不连接到公共互联网，零散地，零散地连接。未来，智慧城市将需要大型电影，大型企业需要连接在一起。 5G正朝着这个方向发展。这些是5G设计的应用场景和目标。当然，工业应用和消费者以外的应用可能不会等到5G。现在我们的国家正在推动“互联网+”和“中国制造2025”，并且还在尝试将4G应用于该行业。现在，通常将手机用作电子商务。在阿里巴巴，超过70％和80％是由移动终端发起的。将来，随着移动终端具有更强大的功能和带宽，并将连接到云，它可以做更多的事情。我认为将来更重要的应用应该是工业应用，这也是将来运营商的业务增长点。

当然，人们可能会更加关注其他一些问题，例如北京的交通问题，是否可以使用移动通信来帮助交通。现在道路上有很多，每个交叉路口的汽车状况都是已知的。驾驶手机的人和带着手机走路的人都知道从这个十字路口步行到那个十字路口需要多长时间，并且知道这条路没有塞满。当然，这只是为了获取您的信息。换句话说，我国目前还没有这样做。一些发达国家已经做到了。所有摄像机拍摄的视频不只是用作电视屏幕，而是放置在特定的交通控制中心。您可以在城市中看到成千上万的摄像机。过来？更改它需要几秒钟。一些国家/地区通过大数据技术将城市中成千上万个摄像机拍摄的视频整合到实时动态交通地图中。该交通图是动态的，实时的，有拥塞和事故发生。它被实时发送到每个驾驶员和每个行人的手机，您可以选择通过哪种方式。将来，移动通信将具有非常好的应用。包括个人医疗和健康在内的医疗保健，已经有很多东西，包括现在的烟雾弥漫，每个人都还认为移动通信是否可以解决这一问题，也可以发挥作用。您可以实时了解每个不同点的雾霾情况。未来，手机将具有强大的功能，甚至手机都可以随时随地替换PM2.5测试仪。现在有人在研究是否可以通过某些手机的功能发射特殊的电磁波，并将PM2.5聚集到PM250中，而人们却无法使用它。我认为在产品开发之前没有考虑过很多应用，许多应用程序是在产品开发之后进行的。在4G，3G和3G出现之前，我们是否知道存在微信？否。所有这些稍后出现。因此，我认为借助这种能力，大多数用户将产生更多的应用程序创新。

《中国科学报》记者：

请问吴和权院士，在4G突破期间遇到了哪些主要技术瓶颈？我们是如何突破的？这些技术突破如何从根本上改变了行业的发展？

吴鹤泉：

我们每个用户都使用宽带。实际上，整个系统的带宽非常宽，因此在现有的低频段很难开发4G。现在4G使用2.6GHz，5G使用更高的频率，高频设备，高频开发软件和高频仪器是我们面临的一大挑战。 At that time, we wanted to promote the development of instruments, antennas, and chips simultaneously. We laid out these issues at the same time to support the development of high frequencies and improve our high frequency capabilities. In addition, there is another problem with 4G. 4G has much more base stations than 3G. The base stations themselves are also energy-consuming, and there is a characteristic of mobile communication. It may be used at peak times and no one will use it in the middle of the night. In some areas, it may be used less during the day, because everyone goes to work and uses more at night. Therefore, mobile communication has obvious "tidal effect" and the base station itself has uneven load. How do you use network technology to reduce power consumption when there are no users and when the traffic is low? This is a big challenge for greening. 4G and 5G, in the future, we must adapt to not only human communication, but also the Internet of Things. The Internet of Things is low-speed, low-power, and low-sensitivity. It is different from human terminals. How to meet different terminal requirements?可以结合。 This is also the challenge of "ubiquity". Of course, there are security challenges and low-cost challenges. For all developments, we realized that we can't just pursue a single index when we first set up the project. We must take into account power consumption, cost, reliability and other factors. So it is not a single technology drive, but a requirement of multiple indicators. In these aspects, we cannot say that we have done a good job at present. There are many tasks that need to be improved in the continuous industrialization process.

Reporter from China Industry News:

Excuse me, Director Wenku, what kind of strategic support will the implementation of major projects play in advancing the construction of a manufacturing power and a network power?

The library:

Just now I said that the network powers, our special project should be said to be a very important part of the network powers. As you all know, if our network didn't exist in the beginning, it would be impossible to imagine that 80% of Internet users now use their mobile phones. Many friends come into contact with the Internet every day, but not every friend has access to a computer. Most of them use mobile phones to access the Internet. Even looking at documents, purchasing products, and viewing information in the work unit are all done through mobile phones. It should be said that it is an important infrastructure of a network power. This infrastructure is like a highway. When it does not, we find it very difficult, and sometimes we think it should be. In order to build a network power, we must continuously lay down our infrastructure.

There are actually two network powers. One is the adjective "strong" in common use. Your network itself must be strong. The second is strong verbs, and strong networks can boost the strength of other industries. Our Ministry of Industry and Information Technology has put forward very high demands on the industrial development of network powers. For example, it is proposed now that industry needs to be digitalized, networked, and intelligent. After digitization, the most important point is networking. The more important thing in networking is the network infrastructure. Many of our networks were narrowband in the beginning, and then gradually broadband, and now they are very smooth broadband. After we are networked, it will also play a great role in boosting the network power, industrial automation and industrial intelligence.

Chen Chuanhong:

This concludes today's press conference. I would like to thank Academician Wu Hequan, Director Wenku, and all journalists from the press.

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