金马影帝黄渤张家辉:中国移动3G出师不利 欲借4G翻身

来源:百度文库 编辑:九乡新闻网 时间:2024/05/01 22:54:16
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China Mobile Ltd. has missed out on Apple Inc.'s iPhone and other hot smartphones because China's government forced the Chinese company to build its 3G network with a homegrown technology not used elsewhere.
Now, the world's biggest carrier, with more than 611 million subscriber accounts, is looking to improve its situation as it prepares to roll out a fourth-generation network.
China's government, which owns all three of the nation's telecommunications carriers, saddled China Mobile with TD-SCDMA, a third-generation wireless technology developed in China, because Beijing thought the company's size would help promote the technology. The government let the other two, smaller, carriers employ the foreign-developed protocols that are used in other markets.
Now, the industry is moving toward a fourth generation of mobile technologies, part of a migration that allows faster, pricier data services. China Mobile has backed a standard called TD-LTE, for time-division long-term evolution. Analysts said the company has a shot at reversing the fate it suffered with 3G, largely because the company has worked to build international support for the technology.
'One of the key lessons of TD-SCDMA is that, despite the power of China Mobile, they cannot create a global ecosystem on their own,' said Tucker Grinnan, head of Asia telecom research for HSBC in Hong Kong. 'TD-LTE provides the potential for a global-scale technology with a viable global ecosystem.'
Behind the arcane alphabet soup is an important battle for technological influence and profits. Companies that obtain key patents for cellular technology, such as phone-chip maker Qualcomm Inc. or equipment vendor Telefon AB L.M. Ericsson, can make billions of dollars from royalties when other companies make products that use their intellectual property.
China's government has long aimed to reduce the country's reliance on foreign technology by backing technologies like TD-SCDMA. The world's most common 3G technology is WCDMA, while CDMA 2000 is used by a few carriers in the U.S. and countries such as South Korea.
China announced 3G mobile licenses for its three carriers in early 2009. China Unicom (Hong Kong) Ltd. was assigned to use WCDMA, while China Telecom Corp. got CDMA 2000. That meant they were able to sell the full range of 3G smartphones that manufacturers produced for global markets using those technologies. Unicom, for example, started offering the iPhone in 2009, and sold 600,000 units of the iPhone 4 model in less than two months last year.
But TD-SCDMA hasn't been used on any other major network in the world. As a result, smartphone makers have to adapt their handsets to work on China Mobile's network, which can be costly. Manufacturers need to swap out parts like chip sets and antennas and might have to re-engineer circuit boards. A handset redesigned to work on TD-SCDMA could cost the carrier 15% to 25% more than a standard version of the phone, estimated Phil Redman, an analyst at market-research firm Gartner Inc.
Handset makers like Nokia Corp. were slow to offer phones supporting China Mobile's 3G standard.
China Mobile leads the country's market in 3G subscribers, with 43% of China's 74 million 3G accounts at the end of May. But that is a far smaller share than the 70% it has of China's 822 million 2G accounts.
With 4G, most carriers so far have favored a different version than China Mobile's technology, called FDD-LTE. In the U.S., Verizon Wireless introduced 4G services using the standard last year, and AT&T Inc. will do so in some cities this summer.
But there are also major carriers interested in TD-LTE, which China Mobile is using. Bharti Airtel Ltd., India's largest telecom company by users, has said it will adopt the protocol. U.S. wireless-service provider Clearwire Corp. last year said it would run tests with both versions of LTE. And in Japan, a unit of Softbank Corp. plans to introduce a service this year that it says will be compatible with TD-LTE.
China Mobile has encouraged suppliers and other mobile carriers to support the technology. Analysts said Chinese telecom-equipment maker Huawei Technologies Co. also has been a key advocate.
Analysts said development of supporting equipment for TD-LTE has lagged behind that for FDD-LTE by more than six months. But TD-LTE has advantages: It makes more efficient use than does its cousin of wireless spectrum, a scarce resource.
In part because TD-LTE has international support, it could mean access for China Mobile to a wider range of handsets and less-expensive components, analysts said. China Mobile Chairman Wang Jianzhou in May said Apple planned to use TD-LTE on the iPhone.
Owen Fletcher
评论内容
2011.07.13 15:50:21
用中国的市场去取得标准,有时不会成功反而还得受重伤! 因为起步太晚,相关专利早就被人取得。 落后你就得比人家更多跨一步才有可能成功! 4G已经起跑,你就得开始规划5、6G而不是等到人家做的差不多之后你才作,这样 规格制定者,才有你的份!
- wantedsanzo
2011.07.13 15:24:24
花钱买个标准
- lfte11
2011.07.13 15:03:07
应该搞标准的不搞ㄛ例如中国文化(要用正体字 )ㄛ中国饮食 风水。。各样中华文化 不应搞的又去搞ㄛ例如电话无线电 中国人真的很奇怪 标准定下来ㄛ大家一起跟就会大家有帮助的 又唔见法国人唔跟美国人订的标准? 中国真的认为自己是世界的中心??  搞4 没有用的吧。。
-
2011.07.13 14:52:55
只要GFW存在,多少G都是浮云,全部都得卡回拨号时代去。
- 浮云
2011.07.13 14:31:08
我只关心全面“单向收费“和全面廉价宽带什么时候能普及。。。。。
- fdfs
2011.07.13 00:14:17
支持TD-LTE,华为和中移动终究将得到赢得的地位和利润!
- oscarpeng
2011.07.13 00:10:00
TD-SCDMA相对国外的CDMA差距很大,TD-LTE就已经是国际最先进的技术了,与FDD-LTE对比毫不逊色,并且拥有相对巨大的资然优势,国际上通用规则都是谁先进用谁的,看来TD-LTE已经成功了,将来可以建设中国无线网络高速公路,不需要电信的有线网络了,大家可以直接用手机或者电脑在任何地方上网冲浪了
- a260866648
2011.07.12 23:40:39
美国一直在各个领域阻挠来自中国的标准成为国际标准。 甚至不给参加国际会议的中国代表发签证,致使中国欲提交会议讨论的无线技术标准要推迟几个月才能得以实现。
- 用中国标准
2011.07.12 23:37:25
WIFI 上网500包月。下面一行小字最高流量限制500G
- jerry
2011.07.12 18:47:27
打个电话而已
- lshsir
2011.07.12 18:03:23
圈钱第一。
- 大熊猫
2011.07.12 16:44:23
TD-LTE的优势在于它采用的是非对称性频段,而FDD-LTE要求对称性的频段。对称性的频段在世界范围已经比较紧缺。因此,未来愿意采用TD-LTE的制式的运营商相信会很多。
- Ray
2011.07.12 16:22:44
生态系统需要大家一起构建。
TD-SCDMA就坏在最早只有国内参与制定标准的6家在玩,从手机到网络,设备根本供应不上,如何抓得住用户?到TD-LTE才变好了,一起培育一起赚。
- oakleaf
2011.07.12 16:09:06
中国还是发展中国家,太高端了,不复合人民地需求。
- szy852716
2011.07.12 15:25:33
他翻身与否和我们用户老百姓有什么关系么?消费者只喜欢物美价廉
- 020xxx
2011.07.12 15:12:01
3G搞不定,4G你还想怎样,这些国家的败家子,每天赚几个亿,什么都搞不好,看看别的国家,差不多10年前就3G了,看看移动把,收费贵,服务差,天天跟其他几个败家子在IPHONE上弄来弄去,没点出息
Owen Fletcher
(本文版权归道琼斯公司所有,未经许可不得翻译或转载。)
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