|
WILLCOM PHS Mobile Phone Tower
Y!mobile is a Japanese mobile phone operator. Y!mobile is a brand used by SoftBank Corp., a subsidiary of Japanese telecommunications company SoftBank Group Corporation, that provides mobile telecommunications and ADSL services. The current CEO of the company is Ken Miyauchi. It was formed in 2014 through the merger of Willcom and eAccess, and uses the Y! moniker brand from Yahoo! Japan, which is partly-owned by SoftBank. On 1 April 2015, Ymobile Corporation merged into Softbank Mobile Corporation (now SoftBank Corporation), with the Y!mobile brand continuing to be used by the newly merged company. History Willcom was a PHS operator based in Tokyo, offering flat-rate wireless network data transmission and flat-rate voice calls for its subscribers. The company was founded as a planning-company in 1994, and started to offer telephony services in 1995 under the brand DDI-Pocket. Its PHS network covered almost all of Japan, and had the largest share of the Japanese PHS market. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokyo
Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.468 million residents ; the city proper has a population of 13.99 million people. Located at the head of Tokyo Bay, the prefecture forms part of the Kantō region on the central coast of Honshu, Japan's largest island. Tokyo serves as Economy of Japan, Japan's economic center and is the seat of both the Government of Japan, Japanese government and the Emperor of Japan. Originally a fishing village named Edo, the city became politically prominent in 1603, when it became the seat of the Tokugawa shogunate. By the mid-18th century, Edo was one of the most populous cities in the world with a population of over one million people. Following the Meiji Restoration of 1868, the imperial capital in Kyoto was mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power
Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively. A common misconception is that electric power is bought and sold, but actually electrical energy is bought and sold. For example, electricity is sold to consumers in kilowatt-hours (kilowatts multiplied by hours), because energy is power multiplied by time. Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is usually supplied to businesses and homes (as domestic mains electricity) by the electric power industry through an electrical grid. Electric power can be delivered over long distances by transmission lines and used for applications such as motion, light or heat with high efficien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
W-SIM
W-SIM（RX420AL） W-SIM (Willcom-SIM) is a SIM card developed by Willcom which, in addition to standard SIM functions, also has the core components of a cellular telephone ( PHS), such as the radio receiver/transmitter, built inside. It is currently used in some terminals (listed below), which do not have radio modules. The W-SIM core module is an extended version of a SIM card, containing not only user data but also all the transmission technology needed for a mobile device to work. A terminal device developer can build a customized terminal without the design and development of a radio module, and users can change to a different radio module W-SIM without changing the terminal itself. Similar to traditional handsets made by WILLCOM, W-SIM terminals can be used in Japan, including global roaming with Taiwan and Thailand. For Mainland China, China Netcom had W-SIMs available, though its PHS network is due to be phased out this year. In addition, a GSM version called the CM-G10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SoftBank Mobile
is a Japanese multinational conglomerate holding company headquartered in Minato, Tokyo which focuses on investment management. The Group primarily invests in companies operating in technology, energy, and financial sectors. It also runs the Vision Fund, the world's largest technology-focused venture capital fund, with over $100 billion in capital. Fund investors include sovereign wealth funds from countries in the Middle East. The company is known for the leadership of its controversial founder and largest shareholder Masayoshi Son. It operates in broadband, fixed-line telecommunications, e-commerce, information technology, finance, media and marketing, and other areas. SoftBank Corporation, its spun-out affiliate and former flagship business, is the third-largest wireless carrier in Japan, with 45.621 million subscribers as of March 2021. SoftBank was ranked in the 2017 Forbes Global 2000 list as the 36th largest public company in the world and the second-largest publicly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Au (mobile Phone Operator)
au, or au by KDDI, is a Japanese mobile phone operator. au is a brand marketed by KDDI in the main islands of Japan and by Okinawa Cellular in Okinawa for their mobile cellular services. au is the second-largest wireless carrier in Japan, with 60.398 million subscribers as of March 2021. Naming According to the brand creator, the name 'au' is based on the Japanese verbs for 'meet' (会う) and 'unite' (合う) (both pronounced 'au'). However, KDDI explains that au comes from two letters which stand for few words. 'A' is for access, always and amenity, and 'U' is for unique, universal and user. There is also a phrase, 'access to u(you)' that goes along the brand name. History The network that would eventually become Au was originally set up as two networks: DDI and IDO. IDO's network was based upon the NTT Hi-cap analog cellular system, and began operations in December 1988 in the Kanto and Tokai regions. DDI's network was run by independent phone companies, and began service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DC-HSPA+
Evolved High Speed Packet Access, HSPA+, HSPA (Plus) or HSPAP, is a technical standard for wireless broadband telecommunication. It is the second phase of HSPA which has been introduced in 3GPP release 7 and being further improved in later 3GPP releases. HSPA+ can achieve data rates of up to 42.2 Mbit/s. It introduces antenna array technologies such as beamforming and multiple-input multiple-output communications (MIMO). Beam forming focuses the transmitted power of an antenna in a beam towards the user's direction. MIMO uses multiple antennas at the sending and receiving side. Further releases of the standard have introduced dual carrier operation, i.e. the simultaneous use of two 5 MHz carriers. HSPA+ is an evolution of HSPA that upgrades the existing 3G network and provides a method for telecom operators to migrate towards 4G speeds that are more comparable to the initially available speeds of newer LTE networks without deploying a new radio interface. HSPA+ should n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASAHI Net
ASAHI Net is a major Internet service provider based in Japan and which is operated by , a public company founded on April 2, 1990. Asahi Net, Inc. has been listed on the First Section of the Tokyo Stock Exchange since December 2007. It offers low-price ADSL, fiber and mobile broadband Internet connection services across Japan as well as related services. ASAHI Net also operates cloud services for educational institutions and corporations. ASAHI Net was ranked as No. 1 FTTH Internet service provider in customer satisfaction in 2010 in a customer satisfaction survey by J.D. Power. There are about 537,000 ASAHI Net Internet service subscribers as of September 2013. Internet service provider Asahi PC Net was developed in 1988 as a service for PC communications based on the ideals of “communication” and “creation”. Functionality such as forums, virtual conference rooms and chats where users were identified by their real names were among the distinguishing features of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3GPP Long Term Evolution
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and 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. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported. 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 it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. The requirements were set forth by the ITU-R organisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DC-HSDPA
Evolved High Speed Packet Access, HSPA+, HSPA (Plus) or HSPAP, is a technical standard for wireless broadband telecommunication. It is the second phase of HSPA which has been introduced in 3GPP release 7 and being further improved in later 3GPP releases. HSPA+ can achieve data rates of up to 42.2 Mbit/s. It introduces antenna array technologies such as beamforming and multiple-input multiple-output communications (MIMO). Beam forming focuses the transmitted power of an antenna in a beam towards the user's direction. MIMO uses multiple antennas at the sending and receiving side. Further releases of the standard have introduced dual carrier operation, i.e. the simultaneous use of two 5 MHz carriers. HSPA+ is an evolution of HSPA that upgrades the existing 3G network and provides a method for telecom operators to migrate towards 4G speeds that are more comparable to the initially available speeds of newer LTE networks without deploying a new radio interface. HSPA+ should n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolved HSPA
Evolved High Speed Packet Access, HSPA+, HSPA (Plus) or HSPAP, is a technical standard for wireless broadband telecommunication. It is the second phase of HSPA which has been introduced in 3GPP release 7 and being further improved in later 3GPP releases. HSPA+ can achieve data rates of up to 42.2 Mbit/s. It introduces antenna array technologies such as beamforming and multiple-input multiple-output communications (MIMO). Beam forming focuses the transmitted power of an antenna in a beam towards the user's direction. MIMO uses multiple antennas at the sending and receiving side. Further releases of the standard have introduced dual carrier operation, i.e. the simultaneous use of two 5 MHz carriers. HSPA+ is an evolution of HSPA that upgrades the existing 3G network and provides a method for telecom operators to migrate towards 4G speeds that are more comparable to the initially available speeds of newer LTE networks without deploying a new radio interface. HSPA+ should ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
