WiBro

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WiBro (Wireless Broadband, Korean: 와이브로) is a wireless broadband Internet technology being developed by the Korean telecoms industry. It adapts TDD for duplexing, OFDMA for multiple access and 8.75MHz as a channel bandwidth. WiBro was devised to overcome the speed limitation of mobile phone (for example CDMA 1x) and to add mobility to broadband Internet (for example ADSL or Wireless LAN). In February 2002, the Korean government allocated 100 MHz of electromagnetic spectrum in the 2.3 - 2.4 GHz band, and in late 2004 WiBro Phase 1 was standardized by the TTA of Korea and in late 2005 ITU reflected WiBro as IEEE 802.16e (mobile WiMAX). WiBro is the service name for mobile WiMAX in Korea. Two Korean Telco (KT, SKT) launched commercial service in June 2006, and the tariff is around 30 US$.


WiBro base stations will offer an aggregate data throughput of 30 to 50 Mbit/s and cover a radius of 1-5 km allowing for the use of portable internet usage. In detail, it will provide mobility for moving devices up to 120km/hr compared to Wireless LAN having mobility up to walking speed and Mobile Phone having mobility up to 250km/hr. From testing during the APEC Summit in Busan in late 2005, the actual range and bandwidth were quite a bit lower than these numbers. The technology will also offer Quality of Service. The inclusion of QoS allows for WiBro to stream video content and other loss-sensitive data in a reliable manner. These all appear to be (and may be) the stronger advantages over the fixed WiMAX standard (802.16a). Some Telcos in many countries are trying to commercialize this Mobile WiMAX (or WiBro). For example, TI (Italia), TVA (Brazil), Omnivision (Venezuela), PORTUS (Croatia), and Arialink (Michigan) will provide commercial service after test service around 2006-2007. While WiBro is quite exacting in its requirements from spectrum use to equipment design, WiMAX leaves much of this up to the equipment provider while providing enough detail to ensure interoperability between designs.

Contents

[edit] Network deployment

SK Telecom and Hanaro Telecom have announced a partnership [1] to roll out WiBro nationwide in Korea, excluding Seoul and six provincial cities, where independent networks will be rolled out.

In November 2004, Intel and LG Electronics executives agreed to ensure compatibility between WiBro and WiMAX technology [2].

In September 2005, Samsung Electronics signed a deal with Sprint Nextel Corporation to provide equipment for a WiBro trial[3] [4].

In November 2005, KT Corporation(aka Korea Telecom) showed off WiBro trial services during the Asia-Pacific Economic Cooperation (APEC) summit in Busan [5].

February 10th 2006: Telecom Italia, the dominant telephony and internet service provider in Italy, together with Korean Samsung Electronics, has demonstrated to the public a WiBro network service on the occasion of the Winter Olympic Games 2006, held in Turin, with downspeed of 10 Mbit/s and upspeed of some hundreds of kbit/s even in movement up to 120 km/h [6].

In the same event Samsung tlc div. president Kitae Lee assured a future of 20-30 Mbit/s by the end of this year (2006) and 100+ Mbit/s down / 1+ Mbit/s up in 2008 [7].

KT Corporation will launch commercial WiBro service in mid-2006 [8].

Sprint (US), BT (UK), KDDI (JP), and TVA (BR) have or are trialing WiBro.

KT Corporation and SK Telecom launched WiBro around Seoul on June 30, 2006. More about the KT launch [9].

[edit] Device deployment

In December 2005, Samsung presented their PDA-type WiBro phones SPH-H1000 [10] and SPH-M8000 [11] at the 2nd International ComBCon (Communication and Broadcasting Convergence Exhibition & Conference).

[edit] See also

[edit] External links

v • d • e
Internet access methods
Wired: Dial-up, ISDN, DSL, Cable, Fiber Optic, Power-line internet
Wireless: Wi-Fi, WiBro, WiMAX, UMTS-TDD, HSDPA, Satellite
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