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Telephone Numbers In China
Telephone numbers in the People's Republic of China are administered according to the Telecommunications Network Numbering Plan of China. The structure of telephone numbers for landlines and mobile service is different. Landline telephone numbers have area codes, whereas mobile numbers do not. In major cities, landline numbers consist of a two-digit area code followed by an eight-digit local number. In other places, landline numbers consist of a three-digit area code followed by a seven- or eight-digit local number. Mobile phone numbers consist of eleven digits. Landline calls within the same area do not require the area code. Calls to other areas require dialing the trunk prefix ''0'' and the area code. The Special administrative regions of China, special administrative regions of Hong Kong and Macau are not part of this numbering plan, and use the calling codes +852, 852 and +853, 853 respectively. Mobile phones In mainland China, mobile phone numbers have eleven digits in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Industry And Information Technology
The Ministry of Industry and Information Technology (MIIT) is the sixth-ranked executive department of the State Council of the People's Republic of China. It is responsible for regulation and development of the postal service, Internet, wireless, broadcasting, communications, production of electronic and information goods, software industry and the promotion of the national knowledge economy. History In 2004, the MIIT began the Connecting Every Village Project to promote universal access to telecommunication and internet services in rural China. The MIIT required that six state-owned companies, including the main telecommunications and internet providers China Mobile, China Unicom, and China Telecom, build the communications infrastructure and assist in financing the project. Beginning in late 2009, the program began building rural telecenters each of which had at least one telephone, computer, and internet connectivity. Approximately 90,000 rural telecenters were built by 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LTE (telecommunication)
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for cellular mobile devices and data terminals. It is considered to be a "transitional" 4G technology, and is therefore also referred to as 3.95G as a step above 3G. LTE is based on the 2G GSM/ EDGE and 3G UMTS/ HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements. LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. LTE has been succeeded by LTE Advanced, which is officially defined as a "true" 4G technology and also named "LTE+". Terminology The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. LTE is also called 3.95G and has been marketed as 4G LTE and Advanced 4G; but the original version did not meet the technical criteria of a 4G wire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CDMA2000
CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites. It is developed by 3GPP2 as a backwards-compatible successor to second-generation cdmaOne (IS-95) set of standards and used especially in North America and South Korea. CDMA2000 compares to UMTS, a competing set of 3G standards, which is developed by 3GPP and used in Europe, Japan, China, and Singapore. The name CDMA2000 denotes a family of standards that represent the successive, evolutionary stages of the underlying technology. These are: *Voice: CDMA2000 1xRTT, 1X Advanced *Data: CDMA2000 1xEV-DO ( Evolution-Data Optimized): Release 0, Revision A, Revision B, Ultra Mobile Broadband (UMB) All are approved radio interfaces for the ITU's IMT-2000. In the United States, ''CDMA2000'' is a registered trademark of the Telecommunications Industry Association (TIA-USA). 1X CDMA200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TD-SCDMA
The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators compared to previous 2G systems like GPRS and CSD. UMTS on its provides a peak theoretical data rate of 2 Mbit/s. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM. UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network ( Mobile Application Part, or MAP) and the authenticatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inmarsat
Inmarsat is a British communications satellite, satellite telecommunications company, offering global mobile services. It provides telephone and data services to users worldwide, via portable or mobile terminals which communicate with ground stations through fifteen geostationary telecommunications satellites. Inmarsat's network provides communications services to a range of governments, aid agency, aid agencies, media outlets and businesses (especially in the shipping, airline and mining industries) with a need to communicate in remote regions or where there is no reliable Earth, terrestrial network. The company was listed on the London Stock Exchange until it was acquired by Connect Bidco, a consortium consisting of Apax Partners, Warburg Pincus, the CPP Investment Board and the Ontario Teachers' Pension Plan, in December 2019. On 8 November 2021, Inmarsat's owners and Viasat (American company), Viasat announced the purchase of Inmarsat by Viasat. The acquisition was comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Phone
A satellite telephone, satellite phone or satphone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefore, they can work in most geographic locations on the Earth's surface, as long as open sky and the line-of-sight between the phone and the satellite are provided. Depending on the architecture of a particular system, coverage may include the entire Earth or only specific regions. Satellite phones provide similar functionality to terrestrial mobile telephones; voice calling, text messaging, and low-bandwidth Internet access are supported through most systems. The advantage of a satellite phone is that it can be used in such regions where local terrestrial communication infrastructures, such as landline and cellular networks, are not available. Satellite phones are popular on expeditions into remote locations where there is no reliable ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiantong (Satellite)
Tiantong (Chinese: 天通) is China's first mobile communications satellite system. The first satellite Tiantong-1-01 was launched on August 6, 2016 (UTC+8). Background The plan to develop mobile communication satellite system in China has been proposed for more than 30 years. In the early 1990s, the scientists in China put forward that the development of satellite mobile communication was an inevitable requirement for a large country with a vast territory, uneven population distribution and frequent natural disasters. When the Wenchuan earthquake occurred, all terrestrial communication systems were down, relying only on the leased foreign satellite telephone link to maintain communication with the outside world. After the Wenchuan earthquake, the state proposed to build its own mobile communication satellite. Its first task is to ensure that when China suffered from severe natural disasters they could use emergency communications, to fill the gaps in the national military and ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3 (company)
Hutchison 3G Enterprises S.A.R.L., commonly known as Hutchison 3G (acronym H3G) and trading as 3 (Three), is the owner of a brand name that operates several Mobile network, mobile phone networks and broadband Internet Service Provider, Internet providers in Hong Kong, Macau, Austria, Denmark, Indonesia, Ireland, Italy, Sweden, and the United Kingdom. The brand was officially founded on 3 March 2003 in Hong Kong. , registered Three customers worldwide numbered over 110 million. All 3-branded network Company, companies are Wholly-owned subsidiary, wholly-owned subsidiaries of CK Hutchison Holdings (formerly Hutchison Whampoa) but the ownership structure varies. CK Hutchison Holdings owns direct majority interests of six networks through 3 (company)#3 Group Europe, 3 Group Europe, including Austria, Denmark, Italy, Ireland, Sweden and the United Kingdom. Hutchison Telecommunications Hong Kong Holdings operates the networks in Hong Kong and Macau, while Hutchison Telecommunication ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CMHK
China Mobile Hong Kong Company Limited or CMHK (), is a wholly owned subsidiary of China Mobile. The company was incepted in January 1997 and was the first PCS operator to launch such services in Hong Kong. CMHK is currently the largest telecommunications operator in Hong Kong. History In June 1994, the company was first launched and established as PEOPLES Telephone Company Limited in Hong Kong and was awarded a PCS license in 1996 September. In May 2000, it was the first operator in Hong Kong to launch an open portal WAP service. On 25 February 2004, it changed its name to China Resources Peoples Telephone Company Limited (), named by its parent company at that time, China Resources. In October 2005, it acquired China Mobile and changed its name to China Mobile Peoples Telephone Company Limited () in April 2006. In March 2006, it was delisted and became a fully subsidiary of China Mobile. In December 2008, it changed its name to China Mobile Hong Kong Company Limited but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Network Card
Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth, or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio ''wireless technology'' include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called transponders. Many satellites use a standardized bus to save cost and work, the most popular of which are small CubeSats. Similar satellites can work together as groups, forming constellatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
