信息通信产业高速发展

1、信息通信产业高速发展abstract: the information communication industry in the 20th century developed rapidly. is expected at the beginning of the 21st century, the moore's law still play a role, the upcoming data more than voice, grouping more than circuit, software than hardware and move more than 4 "

2、more than" phenomenon such as fixed. the current two hot spots and the internet are bound to merge, and mobile wireless internet will have a bright futurekeyword: information communication mobile communicationinternet moore，s lawenglish abstract: infocommunicstions industry has undergone rapid

3、development in the 20 th century and now the world is changing into an infonnation society the moore s law may still work in the early part of the 21 st century. it can be predicted that the data service will exceed voice service, packet switching will replace circuit switching, the software will ge

4、t more advantages in applications than hardware, and the number of mobile telephone users will exceed that of fixed telephone subscribers, as two booming networks, now of the mobile network and the internet are destined to converge in the future, and the mobile wireless internet will have a bright f

5、utureinfocommunication mobile communication internet moore: s lawthe 20th century, wrote a glorious chapter in the history of mankind: in 1900 a group of men in the baltic sea, saved by radio call, mobile communication, for the first time proved that the value of human in the sea; at the end of 1903

6、 wright flew his flying machine into the blue sky, creating a new space for air traffic. the world，s first computer was born in 1946, ushering in a milestone in the information economy and the expansion of human brainpower in 1969 the world，s first packet-switched computer network, arpanet, set the

7、stage for the rapid development of the internet although these exciting invention has become history, on the occasion of the beg in ning of the century, we are still necessary to review yesterday, summarizes the history and to grasp today, looking forward to tomorrow.the status quo of the informatio

8、n communication industryaccording to the itu data: infocommunications (infocominunications) industry was worth $1370 billion in 1995 (see chart 1).table 1. the information communication industry in 1995telecommunications equipment computer business computer hardware software($100 ni订lion) 5, 891, 1,

9、 918, 2, 466, 2, 329, 1, 096proportion (%) 43, 14, 1& 17, 8from table 1, the communications industry is $7809 million, accounting for 57% of the tota1. the information industry was $589. 1 billion, or 43 percent over time, the latter will be more than the former the united states in 1997, driven

10、 by the internet economy income including infrastructure construction, application, the media and the internet business, a total of $301 billion, 1.2 mill ion jobs by comparison, the u.s. auto industry is $350 billion, and the industry is $270bn. as a result, the information industry has grown faste

11、r than the industry in 1997 america，s gdp grew by 2. 8% a year, while the internet economy grew by 174%there are two hot spots in the current information industry: the internet and the mobi 1 e web the combination of these two wireless internet will generate enormous energy and create new economic g

12、rowth points the fixed telephone has begun to shift to ip phone, mobile telephone exchange system is bound to be ip, has now set up 3 g ip association, mwif bbs etc to study the technology and standardsthe current situation of the international information communication industryinternet (by the end

13、of 2000):global users: 500 million households;global host number: 100 million;global email number: 70, 000 billion;global online turnover: $200 bill ion.mobile web (to the end of 2000):global users: 734 million households;gsm (gsm) is the most successful mobile communication technology in modern tim

14、es currently, the gsm global market share is 57%, with more than 140 countries and 350 operators worldwideglobal is -95 cdma network: although has the capacity big, the coverage is good, the voice quality higher quality, but the standardization degree is low, enter the market late it currently has a

15、bout 11 percent of the global market, mainly in north america, south korea, japan and other countriesthe present situation of the domestic information and communication industryinternet (by the end of 2000):national users: 2, 2.5 million, of which the line number about 3. 64 million internet users,

16、the users of the dial-up is about 1, 5. 43 million, at the same time use the special line and dial the number of users is 3.43 million;the number of hosts in the country was 8. 92 million, including 1.41 million dedicated internet computers and 7.51 million dial-up internet computersthe number of do

17、mains registered under cn: 122, 099;the number of www sites nationwide: 265, 405;the total capacity of the national international circuit is 2, 799m;in china, internet users are growing at dn annual rate of 170%.mobile web (to the end of 2000):the number of mobile phone users in china (mainly gsm) :

18、 8. 526m, of which china mobile subscribers are about 6. 82m, and china unicorn users reach $1.7 mill ion.the total capacity of the national mobile switch has reached 130 mill ion.the total number of mobile channels in china has exceeded 3 million, making it the world，s largest networkthe total numb

19、er of chinese is -95 cdma internet users: 500, 000 households;for the first time, the number of mobile phone users in the country has exceeded the fixed numbercharacteristics of information communication technologythe driving force of the new technology is an important factor in the evolution of the

20、 information communication system. the emergence of a new technology often leads to a generation of new products that drive the development of the market but the new technology is alive and well, and it has to be properly marketed and tested the current field of information communication needs to ac

21、tively track and focus on the development of new technologiesthe development of new technologies for information communicationfrom the network layer, the computer network, telecommunication network, network, etc accelerate the integration of the whole, the broadband ip technology becomes the support

22、 and the junction of the three meshes; as voip matures, it will promote the convergence of mobile voice and data businesses, and more broadly support the mobile multimedia businesssince the 1990s, the far-reaching impact of the digital revolution can be summed up in three points: the rapid growth of

23、 the internet in 1994; the second is the convergence of the "three networks" of digitization. third, the system revolution of coimnunication system switching from circuit to packet exchangeone of the most important features of the internet is the separation of infrastructure and applicatio

24、ns anyone can set up a web page on the internet, and you can see it all over the world. although the early internet is narrow, non real-time data network, thanks to the internet have so prominent characteristics, people begin to try to provide voice and data communications on the internet and video

25、business the key issue is how to provide end-to-end connectivity over ip, an unconnected network, and to ensure service quality (qos) the main problem in this area has been resolved, and the beginning of everything over ip means that any kind of business can be achieved on the internet the internet

26、not only provides web-based new internet services, but also provides a variety of traditional telecom services, even video transmission and broadcasting in fact, from the development trend of the past, the concept of b - isdn in phased out, the future of the integrated network will be based on the b

27、roadband internet, it is now accepted by most of the operators and equipment manufacturersa series of global industrial restructurings over the past two years have not been built around competition for future ip marketsdue to the business content, means of transport and processing method of digital,

28、 led to an industry can do the other industry, made in the past few independent industry, telecommunications, broadcasting and computer industry appeared the trend of merging. in fact, the process is already, in the 1980 s, the telecom industry started developing narrowband integrated service digita

29、l network (isdn) n provide a comprehensive business voice, data, video, and then developing broadband integrated services digital network (isdn) - b; in the 1990s, the broadcast industry also wanted to make the entire business network (fsn) on cable networks, but these early attempts were unsuccessf

30、ul. the fundamental reason is that, although the possibility of the three nets in the fusion, but due to the three network using different transmission technology and proto col, will come up from the link layer connection between the three nets is almost impossible how can we achieve convergence wit

31、hout interconnectivity? the internet is connected on the network layer, not on the link layer the three networks accept the ip protocol, and thus provide a binding point for the integration of the three networks, a common basismodern telecommunication networks based on voice business is given priori

32、ty to optimize design, more than 100 years has been the circuit switching, need an exchange control center to establish a connection before communication. it has three features: connection-oriented, circuit switching, and time-division. and the older way of communicating - the postal service is in e

33、xchange for letters, the post office chooses the postal route, and it's not necessary to establish a connection. internet use postal exchange way, reassembled into data packet (pack), the routers on the network according to the destination address routing transmission of the packet header, is co

34、nnectionless unlike traditional telecommunication networks, the three basic features of the internet are: no connection, packet switching, and statistical reuse in the network layer, the problem is solved using only one ip protoco 1. as far as the link is technical and the media is not related, it a

35、voids the difficulty of interconnecting on the link layer this has led to an explosion of the internet for years, the internet couldn't be linked to a comprehensive business thus, ip provides a binding point for the three-mesh fusion, resulting in the institutional revolution of switching from c

36、ircuit to packet switching.from the point of the air interface, mobile data service oriented 2. 5 g transition technology is increasingly active, and mature, the gprs because of its outstanding advantages, and become the main transition of gsm to the third generation technology; mobi 1 e internet ac

37、cess business outlook, and start into the practical phase, the mobile terminal access to the internet has become the focus of attention, for the application of wap (wireless application protocol) technology, has caused widespread concern around the world software radio, high spectrum efficiency mult

38、iple access code, joint space-time processing technology, modern encoding/modulation technology (including all kinds of voice, image compressed digital technology such as turbo code and r - s code and new type of channel coding technology), multiuser detection and interference offset technology, suc

39、h as smart antenna are worthy of our attaches great importance to the key technology.2. 2 moore's law and supermoore，s lawthe development of new technology in the field of information and communication speed until the beginning of the 21st century, microelectronic device still follow moore，s law

40、: every 18 months on the chip component density double; it doubles every 18 months the cost of the chips halved every 18 months the internet is followed by supermoore，s law: doubling every six months the annual growth rate of network capacity is over 78%there may have been four more than before 2010

41、due to the new technology, there are expected to be four more than before 2010:data exceeds voice 一 information requirements in the developed world, the data business will exceed the voice business within three years, and within 10 years it will account for 90% or even 95% of the data global online

42、transactions will exceed $120 billion in 2003.group over circuit - economic deman止 the next generation of backbone faces the whole transformation,the exchange of circuits is merged with packet switching and is replaced by packet switching the data packet network will reduce the operating costs of ca

43、rriers, because they do not have to provide a special circuit for a cal 1. estimates that in 1998, 1 million - bit data transmission costs for 37 cents, and by 2002 after using packet switching technology efficiency will make cost down to 10 cents, in 2004 by a new generation network technology can

44、reduce to 4 centssoftware exceeds hardware - technical requirements software radio technology can use different software to realize the functions of different radio equipment, can be arbitrary change channel access mode or modulation mode, using different software can adapt to different standards, a

45、 multimode mobile phone and multi-functional base stations, has a high degree of openness and flexibility the emergence of software radio technology, make the development of wireless communication has experienced from fixed to mobile, from analog to digital, from hardware to software 3 times change,

46、 make the information communication equipment mainly by the hardware to hardware + software and software is given priority to.move more than fixed - individual demand the number of mobile subscribers, the amount of business and the network infrastructure will all exceed fixed communications mobile r

47、evenues now account for 40 per cent of telecoms revenues and continue to rise global mobile communication users reached 734 million in 2000, finland has become the first mobile phone penetrati on tha n fixed teleph one, china shenzhen, xiamen city, the mobile phone number has more than fixed telepho

48、ne number in 2003, the number of internet-enabled mobile phones and mobile devices will exceed the number of pcs in 2004, the number of internet users who had access to the internet using fixed-line or mob i1e methods reached 1 bill ion. in 2015, the number of mob i1e phone users will reach 2.4 bill

49、 ion. it took about 130 years for fixed users to reach 1 billion, and mobile communications took 21 years mobile communication is gradually developing into a major network of independent hosting business from a complementary and extension means of the original fixed communicationthe development tren

50、d of information communication technologythe development trend of the internet, the telecommunications internetthe world has become interconnected, and various networks have brought together people and machines from different countries and regions to join forces explosive development of the internet

51、, with web applications as representative of the rapid growth of ip data communication, and is changing people's social, cultural, economic way of life, form a new network economy. will be the next generation of the internet, broadband, can support the whole business, not a connection-oriented,

52、without complex process of hybrid network structure, manageable, dimensionality, can ensure the quality of service of telecom ip network, forming a do not rely on the wireless access network or other access to a single global ip network structureinformation society needs high-speed transmission of i

53、nformation, providing high-speed access to high-speed access, processing, processing and utilization of information. the transmission of sound, data, and images is gradually integrated -multimedia; to transfer information from one way to two and even more the separation of the existing telecommunica

54、tion network, computer network and cable television network integrated at the higher level, forming a new generation of unified information network, as an industrial, commercial, financial, education, scientific research, health, entertainment and defense, and so on information service in the field

55、of carrierin the future, if a network is running ip, the future will be a wireless network running ip. this process has led to a revolution in communications in the last five years everything over ip, the ip network will become the base networkthe development trend of mobile web 一 mobile wireless in

56、ternet mobile communication services and technologies are moving from traditional voice to data and broadband multimedia two hot spots in the current information communication field? the internet and the internet are bound to merge, and the convergence of mobile and ip communications will usher in a

57、 new era in the development of the information industry. the next generation mobile communications network will be high-speed, broadband, and multimedia,mobile wireless internet for all mobile operatingenvironments.mobile wireless internet is not a simple patchy or mobile phone technology and intern

58、et technology, it is the innovation concept under the guidance of a high technology integration, communications and computer integration of upgrade again.the fusion of mobile phones and the internet, not only realizes the two complementary advantages, but also to a great extent, changed the old comm

59、unication of ideas and the basic rules for network access it enables mobile phones to get on the internet, that is to say, the mobile terminal has communication function not only, also will have as a network terminal, the information from the internet free access to information function in the sea. mobile communication and positioning technology, combining with functions of automatic positioning mobile body, the internet will provide people with a "l