- 北境漫步
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1、3G是什么?
3G是英文3rd Generation的缩写,即第三代移动通信技术,它将无线通信与互联网等多媒体传播技术结合,同第一代移动通信的语音通话、第二代移动通信在语音之外增加短信、接受邮件等数据业务不同,3G主要是在传输声音和数据的速度上提升,能够处理图像、音乐、视频流等多种媒体形式,和网页浏览、电话会议、电子商务等多种信息服务。
在2G时代,受网络带宽、手机终端及产业链上中下游商业配置等诸多因素的影响和制约,不少人手机用户的上网仅停留在新闻浏览、图铃下载等简单的应用层面。
而3G到来之后,随着网速的大大提升,这些用户会使用更多的高级服务,如手机电视、视频通话等新业务。
2、3G的好处?
3G是一个综合性平台,有八大功能。
第一、更高质量的通话。第二、更快速的上网。如果是几个小时的浏览,可能用3G手机也不太合适,在移动的路上快速、短期浏览是很方便的。第三、可视电话。打电话的时候可以看到对方的动作。第四、可以有监测、控制功能。比如说你按一个号码就可以看到自己家里面的情况,门是否锁好了,电视机是否关了。出差以后也可以进行长距离的监测等等,现在还有一个技术叫做“全球眼”,可以通过手机进行控制,类似随身小秘书,可以很方便地处理监测和控制功能。第五、手机定位。无论走在什么地方,都可以通过手机和电子地图结合起来,找到附近哪有医院、餐厅等等,比2G更方便、更清晰。第六、手机钱包功能。你以后出门的时候可以不带钥匙、不带钱,可以通过手机进行支付。第七、年轻人比较感兴趣的视频游戏。大家互相都能够在可视情况下玩游戏,市场比较大。第八、视频社区。老同学、老同事可以形成一个社区,无论在天南海北,无论是在南半球还是北半球,大家都可以定时会晤,通过社区的活动一起开会、联欢、交流等等。细分可能还会很多,而且随着技术的发展,只有我们想不到的,没有做不到的,可以很方便地组成一些新的内容。
3、哪家网络好?
中国电信执行副总裁张继平表示,将于3月底前在100个主要城市提供3G服务,今年7月将在全国开展3G服务。
中国联通董事长常小兵在香港表示,今年上半年将在全国55个城市开展3G业务。
中移动日前也表示将于今年在3G上投资588亿元,覆盖了238个城市。
1、中国电信:7月底覆盖全国
“我们3G规模是最大的,也可以说将是第一家率先提供全国性3G服务的运营商。”中国电信综合部有关人士昨天对记者表示,公司正在对C网进行网络升级和优化,按照计划3月份公司将在共100个大中城市提供3G服务,今年7月份县级以上的城市都能正式开展3G服务。
2009年7月份中国电信将在全国绝大多数地区提供3G服务,那时也将是规模最大的3G服务商。
2、中国联通:2010年盈利
中国联通董事长常小兵在香港表示,计划于上半年在中国55个城市推出3G服务,并且计划在今年年底前将该服务的覆盖范围扩大至282个城市,并且预计3G业务将在2010年实现盈利。
4、Nokia的手机大部分支持3G,不过基本上都是支持WCDMA网络也就是中国联通的网络,而移动和电信的网络则不能使用Nokia的手机,除非Nokia研发适合移动TD-SCDMA和电信cdma2000或者evdo的手机终端。
- max笔记
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1、3G是什么?
3G是英文3rd Generation的缩写,即第三代移动通信技术,它将无线通信与互联网等多媒体传播技术结合,同第一代移动通信的语音通话、第二代移动通信在语音之外增加短信、接受邮件等数据业务不同,3G主要是在传输声音和数据的速度上提升,能够处理图像、音乐、视频流等多种媒体形式,和网页浏览、电话会议、电子商务等多种信息服务。
在2G时代,受网络带宽、手机终端及产业链上中下游商业配置等诸多因素的影响和制约,不少人手机用户的上网仅停留在新闻浏览、图铃下载等简单的应用层面。
而3G到来之后,随着网速的大大提升,这些用户会使用更多的高级服务,如手机电视、视频通话等新业务。
2、3G的好处?
3G是一个综合性平台,有八大功能。
第一、更高质量的通话。第二、更快速的上网。如果是几个小时的浏览,可能用3G手机也不太合适,在移动的路上快速、短期浏览是很方便的。第三、可视电话。打电话的时候可以看到对方的动作。第四、可以有监测、控制功能。比如说你按一个号码就可以看到自己家里面的情况,门是否锁好了,电视机是否关了。出差以后也可以进行长距离的监测等等,现在还有一个技术叫做“全球眼”,可以通过手机进行控制,类似随身小秘书,可以很方便地处理监测和控制功能。第五、手机定位。无论走在什么地方,都可以通过手机和电子地图结合起来,找到附近哪有医院、餐厅等等,比2G更方便、更清晰。第六、手机钱包功能。你以后出门的时候可以不带钥匙、不带钱,可以通过手机进行支付。第七、年轻人比较感兴趣的视频游戏。大家互相都能够在可视情况下玩游戏,市场比较大。第八、视频社区。老同学、老同事可以形成一个社区,无论在天南海北,无论是在南半球还是北半球,大家都可以定时会晤,通过社区的活动一起开会、联欢、交流等等。细分可能还会很多,而且随着技术的发展,只有我们想不到的,没有做不到的,可以很方便地组成一些新的内容。
3、哪家网络好?
中国电信执行副总裁张继平表示,将于3月底前在100个主要城市提供3G服务,今年7月将在全国开展3G服务。
中国联通董事长常小兵在香港表示,今年上半年将在全国55个城市开展3G业务。
中移动日前也表示将于今年在3G上投资588亿元,覆盖了238个城市。
1、中国电信:7月底覆盖全国
“我们3G规模是最大的,也可以说将是第一家率先提供全国性3G服务的运营商。”中国电信综合部有关人士昨天对记者表示,公司正在对C网进行网络升级和优化,按照计划3月份公司将在共100个大中城市提供3G服务,今年7月份县级以上的城市都能正式开展3G服务。
2009年7月份中国电信将在全国绝大多数地区提供3G服务,那时也将是规模最大的3G服务商。
2、中国联通:2010年盈利
中国联通董事长常小兵在香港表示,计划于上半年在中国55个城市推出3G服务,并且计划在今年年底前将该服务的覆盖范围扩大至282个城市,并且预计3G业务将在2010年实现盈利。
4、Nokia的手机大部分支持3G,不过基本上都是支持WCDMA网络也就是中国联通的网络,而移动和电信的网络则不能使用Nokia的手机,除非Nokia研发适合移动TD-SCDMA和电信cdma2000或者evdo的手机终端。
What is 3 G?
3G is the 3rd Generation of the abbreviation in English, that is, the third generation mobile communication technology, it will, such as wireless communications and the Internet multi-media dissemination of technology, with the first generation of mobile communications for voice calls, the second generation of mobile communications in addition to voice messages, receive e-mail data services, such as different, 3G is voice and data transmission speed of the upgrade, able to handle images, music, video streaming and other forms of media, and web browsing, conference calls, e-commerce and other information services.
In the 2G era, by the network bandwidth, mobile terminals and the industrial chain, and many middle and lower reaches of the commercial allocation of factors and constraints, many people are mobile phone users access to the Internet only to stay in the news browser, download the application simple.
And after the arrival of 3G, with the greatly increased speed, these users will use more advanced services such as mobile TV, video calls and other new business.
The benefits of 2,3 G?
3G is a comprehensive platform, there are eight functions.
First, higher-quality calls. Second, the Internet more quickly. If it is a few hours of browsing, 3G mobile phones may be used is not appropriate, rapid way in the mobile, short-term visit is very convenient. Third, the video phone. When the call can see each other"s movements. Fourth, there are monitoring, control functions. For example, according to a number you can see inside their homes, the doors are locked, the TV is switched off. After a business trip can be long-distance monitoring and so on, as there is still a technology called "Global Eye", can be controlled via cell phone, similar to carry small secretary, it is easy to deal with monitoring and control functions. Fifth, the mobile phone positioning. No matter where go, to pass through the cell phone and e-map combined how to find nearby hospitals, restaurants, etc., than the 2G more convenient and more clearly. Sixth, the mobile wallet functionality. After the time you can go out without the key, not money, you can pay via cell phone. Seventh, the relatively young people interested in video games. Everyone will be able to play in the video game case, a large market. Eighth, the video community. Old students, old colleagues can form a community, both in far apart, whether it is in the southern hemisphere or northern hemisphere, we can all meet from time to time, through the activities of the community to attend meetings, get-together, exchange and so on. May be broken down a lot, but as technology advances, only if we did not expect and did not do, and can be easily composed of a number of new content.
3, which the network good?
China Telecom Executive Vice President Zhang Jiping said that before the end of March will be 100 major cities in the provision of 3G services in July this year will launch 3G services in the country.
China Unicom Chairman Chang Xiaobing said in Hong Kong first half of this year will be 55 cities nationwide 3G business.
China Mobile will be a few days ago that this year"s 58.8 billion to invest 3G, covering 238 cities.
1, China Telecom: covering the whole country by the end of July
"We are the largest scale of 3G, it can be said that the first will be the first to provide nationwide 3G service operators." Integrated Ministry of China Telecom, told reporters yesterday that the company is on the C network upgrades and network optimization, in accordance with the plan March will be a total of 100 large and medium-sized cities to provide 3G services in July this year, or above the county level city official launch of 3G services can be.
In July 2009 in the country of China Telecom will provide 3G services to the vast majority of that time will be the largest provider of 3G services.
2, China Unicom: earnings in 2010
China Unicom Chairman Chang Xiaobing said in Hong Kong, which is scheduled for the first half of 55 cities in China to launch 3G services, and plan the end of this year to expand coverage to 282 cities, and the 3G business will be expected by 2010 profit.
4, Nokia cell phone most of the support 3G, but are basically in support of WCDMA network of China Unicom"s network, and mobile and telecommunications network can not use Nokia cell phone, unless Nokia R & D for the mobile TD-SCDMA and cdma2000 or telecommunications evdo the cell phone terminal.
- 苏萦
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目前的3G有三种,TD-SCDMA(中国移动)WCDMA(中国联通)和CDMA2000(中国电信),我就介绍一下中国移动的TD-SCDMA。
1:最主要的多了个视频通话(打电话时可以互相看到对方),还有手机上网速度也有很大的提升。
2:已经开通了,中国移动在全国8个省市已经开通 了TD-SCDMA(中国自主知识产权的3G标准)。不久全国就会陆续开通3G。现在在深圳这边3G的费用和2G的基本相同。或者说比3G还要便宜。比如深圳的全球通的资费是98元包300分钟本地主叫和省己主被叫。广东省内接听免费。而3G的资费也是:98元包300分钟本地主叫和省己主被叫。广东省内接听免费,另外还送150MB的T网流量。这样算下比普通2G的资费还便宜。
- ardim
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3G, called the 3rd Generation, in Chinese refers to the meaning of the third generation of digital communications. Advent in 1995 of first-generation analog mobile phone system (1G) for voice calls only; 1996-1997 years the second generation of GSM, TDMA digital mobile phone standard (2G) will increase the function of receiving data, such as receiving e-mail or page; the third generation of the previous two generations is the main difference between voice and data transmission speed of the upgrade, it can be better at the global level to achieve seamless roaming, and to deal with images, music, video streaming and other forms of media ,
Including web browsing, conference calls, e-commerce and other information services, taking into account also the second-generation system and has good compatibility. In order to provide such services, the wireless network must be able to support different data transfer rate, that is to say in the indoor, outdoor and vehicular environments, respectively, can support at least 2Mbps (megabits / second), 384kbps (kilobits / second) as well as the transmission speed of 144kbps. (This value will be in accordance with changes in network environment).
A relatively standard first-generation analogue phones (1G) and second-generation GSM, TDMA digital mobile phones (2G), 3G communications in the name of diversity, the ITU as "IMT-2000" (International Mobile Telephone 2000) standards, the European telecommunications They said the giant as "UMTS" Universal Mobile Telecommunications System.
3G standards, the International Telecommunication Union (ITU) is currently a total of four to determine the global 3G standards, which are WCDMA, CDMA2000 and TD-SCDMA and WiMAX.
January 7, 2009 2:30 pm, the Ministry of industry and information technology in-house licenses held a small ceremony, 3G license officially issued. China Mobile, China Telecom and China Unicom respectively TD-SCDMA, CDMA2000 and WCDMA license.