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China Telephone Numbering Plan
Telephone numbers in China are organized according to the Chinese Telephone Code Plan. The numerical formats of landlines and mobile phones are different: landlines have area codes, whereas mobile phones do not. In major cities, landline numbers consist of a two-digit area code followed by an eight-digit inner number. In other places, landline numbers consist of a three-digit area code followed by a seven- or eight-digit internal number. The numbers of mobile phones consist of eleven digits. When one landline is used to dial another landline within the same area, it is not necessary to specify the area code. The target number must be prepended between different regions with the trunk prefix, which is 0. Calling a mobile phone from a landline requires the addition of the "0" in front of the mobile phone number if they are not in the same area. Mobile to landline calls requires the "0" and the area code if the landline is not within the same place. Mobile to mobile calls does not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Industry And Information Technology Of The People's Republic Of China
The Ministry of Industry and Information Technology of the Chinese government, established in March 2008, is the state agency of the People's Republic of China 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. The MIIT was also responsible for the nation's tobacco control, but this task will be assigned to a new health commission to be established as part of a broad governmental reshuffle. The Ministry of Industry and Information Technology is not responsible for the regulation of content for the media industry. This is administered by the State Administration of Radio, Film and Television. The responsibility for regulating the non-electronic communications industry in China falls on the General Administration of Press and Publication. History The state council announced during the 2008 Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5G NR
5G NR (New Radio) is a new radio access technology (RAT) developed by 3GPP for the 5G (fifth generation) mobile network. It was designed to be the global standard for the air interface of 5G networks. As with 4G (LTE), it is based on OFDM. The 3GPP specification 38 series provides the technical details behind 5G NR, the successor of LTE. The study of NR within 3GPP started in 2015, and the first specification was made available by the end of 2017. While the 3GPP standardization process was ongoing, the industry had already begun efforts to implement infrastructure compliant with the draft standard, with the first large-scale commercial launch of 5G NR having occurred in the end of 2018. Since 2019, many operators have deployed 5G NR networks and handset manufacturers have developed 5G NR enabled handsets. Frequency bands 5G NR uses frequency bands in two frequency ranges: # Frequency Range 1 (FR1), for bands within 410 MHz – 7125 MHz # Frequency Range 2 (FR2), for bands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beijing
} Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 million residents. It has an administrative area of , the third in the country after Guangzhou and Shanghai. It is located in Northern China, and is governed as a municipality under the direct administration of the State Council with 16 urban, suburban, and rural districts.Figures based on 2006 statistics published in 2007 National Statistical Yearbook of China and available online at archive. Retrieved 21 April 2009. Beijing is mostly surrounded by Hebei Province with the exception of neighboring Tianjin to the southeast; together, the three divisions form the Jingjinji megalopolis and the national capital region of China. Beijing is a global city and one of the world's leading centres for culture, diplomacy, politics, finance, busi ... [...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 through orbiting satellites instead of terrestrial cell sites, as cellphones do. The advantage of a satphone is that its use is not limited to areas covered by cell towers; it can be used in most or all geographic locations on the Earth's surface. The mobile equipment, also known as a terminal, varies widely. Early satellite phone handsets had a size and weight comparable to that of a late-1980s or early-1990s mobile phone, but usually with a large retractable antenna. More recent satellite phones are similar in size to a regular mobile phone while some prototype satellite phones have no distinguishable difference from an ordinary smartphone. Satphones are popular on expeditions into remote areas where terrestrial cellular service is unavailable. A fixed installation, such as one used aboard a ship, may include large, rugged, rack-mounte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Industry And Information Technology
The Ministry of Industry and Information Technology of the Chinese government, established in March 2008, is the state agency of the People's Republic of China 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. The MIIT was also responsible for the nation's tobacco control, but this task will be assigned to a new health commission to be established as part of a broad governmental reshuffle. The Ministry of Industry and Information Technology is not responsible for the regulation of content for the media industry. This is administered by the State Administration of Radio, Film and Television. The responsibility for regulating the non-electronic communications industry in China falls on the General Administration of Press and Publication. History The state council announced during the 2008 Nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3 (company)
3 or Three is a global brand name owned by Hutchison 3G Enterprises S.A.R.L., under which several UMTS-based mobile phone networks and broadband internet providers operate in Hong Kong, Macau, Austria, Denmark, Indonesia, Ireland, Sweden, and the United Kingdom. The brand was founded in 2002 in Hong Kong. , registered ''Three'' customers worldwide numbered over 110 million. All 3-branded network companies are wholly owned subsidiaries of CK Hutchison Holdings but the ownership structure varies. CK Hutchison Holdings (formerly Hutchison Whampoa) owns direct majority interests of six networks through ''3 Group Europe'', including Austria, Denmark, Italy (Wind Tre), Ireland, Sweden and the United Kingdom. Hutchison Telecommunications Hong Kong Holdings operates the networks in Hong Kong and Macau, while Indosat Ooredoo Hutchison operates the network in Indonesia. All 3-branded networks provide 4G ( LTE) and 3G (WCDMA) services; some also run 2G networks and 5G services. CK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Mobile Hong Kong
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 was acquired by China Mobile and renamed 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 was renamed to China Mobile Hong Kong Company Limited but kept i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Network Card
A wireless network interface controller (WNIC) is a network interface controller which connects to a wireless network, such as Wi-Fi or Bluetooth, rather than a wired network, such as a Token Ring or Ethernet. A WNIC, just like other NICs, works on the layers 1 and 2 of the OSI model and uses an antenna to communicate via radio waves. A wireless network interface controller may be implemented as an expansion card and connected using PCI bus or PCIe bus, or connected via USB, PC Card, ExpressCard, Mini PCIe or M.2. The low cost and ubiquity of the Wi-Fi standard means that many newer mobile computers have a wireless network interface built into the motherboard. The term is usually applied to IEEE 802.11 adapters; it may also apply to a NIC using protocols other than 802.11, such as one implementing Bluetooth connections. Modes of operation An 802.11 WNIC can operate in two modes known as ''infrastructure mode'' and ''ad hoc mode'': ; Infrastructure mode : In an infrastru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite
A satellite or artificial satellite is an object intentionally placed into orbit in outer space. 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 Transponder (satellite communications), transponders. Many satellites use a Satellite bus, standardized bus to save cost and work, the most popular of which is small CubeSats. Similar satellites can work together as a group, forming Satellite constellation, constellations. Because of the high launch cost to space, satellites are designed to be as lightweight and robust as possible. Most communication satellites are radio Broadcast relay station, relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Satellites are placed from the surface to orbit by launch vehicles, high enough to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinasat
ChinaSat () is the brand name of communications satellites operated by China Satellite Communications. History In 2007, a joint venture China Direct Broadcast Satellite was formed to run the brand ChinaSat. It was a joint venture of state-owned companies China Satellite Communications, China Orient Telecommunications Satellite and Sino Satellite Communications. The latter was controlled by China Aerospace Science and Technology Corporation (CASC). However, China Satellite Communications was changed from a direct subsidiary of the State-owned Assets Supervision and Administration Commission of the State Council (SASAC) to a direct subsidiary of CASC in 2009, the joint venture was dissolved and Sino Satellite Communications became a subsidiary of China Satellite Communications. The brand ChinaSat was previously operated by China Telecommunications Broadcast Satellite Corporation, which was owned by China's Ministry of Posts and Telecommunications. China Telecommunications B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TD-SCDMA
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. 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. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators. 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 authentication of users via SIM (subscriber identity module) cards. The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM. Unlike EDGE (IMT Single-Carrier, based on GSM) and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
