Last updated
Wibro Egg sold by KT, produced by Interbro
Korean name
Revised Romanization waibeuro
McCune–Reischauer waibŭro
wibro modem KWD-B2800(strong egg sold by kt, produced by modacom) Wibro modem(kwd-b2800) for korea(kt).jpg
wibro modem KWD-B2800(strong egg sold by kt, produced by modacom)

WiBro (wireless broadband) is a wireless broadband Internet technology developed by the South Korean telecoms industry. WiBro is the South Korean service name for IEEE 802.16e (mobile WiMAX) international standard. By the end of 2012, the Korean Communications Commission intends to increase WiBro broadband connection speeds to 10Mbit/s, around ten times the 2009 speed, which will complement their 1Gbit/sec fibre-optic network. [1] The WiBro networks were shut down at the end of 2018. [2] [3]

Wireless broadband

Wireless broadband is telecommunications technology that provides high-speed wireless Internet access or computer networking access over a wide area. The term comprises both fixed and mobile broadband.

Internet Global system of connected computer networks

The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies. The Internet carries a vast range of information resources and services, such as the inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing.

South Korea Republic in East Asia

South Korea is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. The name Korea is derived from Goguryeo which was one of the great powers in East Asia during its time, ruling most of the Korean Peninsula, Manchuria, parts of the Russian Far East and Inner Mongolia under Gwanggaeto the Great. Its capital, Seoul, is a major global city and half of South Korea's over 51 million people live in the Seoul Capital Area, the fourth largest metropolitan economy in the world.


WiBro adopts TDD for duplexing, OFDMA for multiple access and 8.75/10.00 MHz as a channel bandwidth. WiBro was devised to overcome the data rate limitation of mobile phones (for example CDMA 1x) and to add mobility to broadband Internet access (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). Two South Korean telecom companies (KT, SKT) launched commercial service in June 2006, and the tariff is around US$30.

A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions. Duplex systems are employed in many communications networks, either to allow for simultaneous communication in both directions between two connected parties or to provide a reverse path for the monitoring and remote adjustment of equipment in the field. There are two types of duplex communication systems: full-duplex (FDX) and half-duplex (HDX).


CDMA2000 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.

Wireless LAN wireless computer network that links devices using wireless communication within a limited area

A wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, office building etc. This gives users the ability to move around within the area and yet still be connected to the network. Through a gateway, a WLAN can also provide a connection to the wider Internet.

WiBro base stations offer an aggregate data throughput of 30 to 50 Mbit/s per carrier and cover a radius of 1–5 km allowing for the use of portable internet usage. In detail, it provides mobility for moving devices up to 120 km/h (74.5 mi/h) compared to Wireless LAN having mobility up to walking speed and mobile phone technologies having mobility up to 250 km/h. 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 were trying to commercialize this Mobile WiMAX (or WiBro). For example, TI (Italy), TVA (Brazil), Omnivision (Venezuela), PORTUS (Croatia), and Arialink (Michigan) provided commercial service at some stage. While WiBro is quite precise 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.

Base station

Base station is – according to the International Telecommunication Union's (ITU) Radio Regulations (RR) – a "land station in the land mobile service."

Busan Metropolitan City in Yeongnam, South Korea

Busan, formerly Romanized as Pusan and now officially Busan Metropolitan City, is South Korea's second most-populous city after Seoul, with a population of over 3.5 million inhabitants. It is the economic, cultural and educational center of southeastern Korea, with its port—Korea's busiest and the fifth-busiest in the world —only about 120 miles (190 km) from the Japanese islands of Kyushu and Honshu. The surrounding "Southeast Economic Zone" is South Korea's largest industrial area.

WiMAX wireless broadband standard

WiMAX is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide multiple physical layer (PHY) and Media Access Control (MAC) options.

WiBro has a Peak Download speed of 128 Mbit/s and a Peak Upload speed of 56 Mbit/s.

Current service

In Korea, KT (Korea Telecom) offers Wave 2 (18.4 Mbit/s, 4 Mbit/s) for 10000 KRW/mo (around $11 or €6.50) with 10 GB data usage to 40000 KRW/mo with 50 GB data usage plus free access to their own WiFi hotspots, ollehWiFi. The service coverage is advertised as nationwide, but actual coverage is restricted to every city, some railroad station, airports, and major highways. SK Telecom also offers Wave 2 WiBro Service for $18.87 a month with 30 GB data usage. Actual service coverage is limited mostly to major cities and highways.

SK Telecom South Korean telecommunications company

SK Telecom Co., Ltd. is a South Korean wireless telecommunications operator; it is part of the SK Group, one of the country's largest chaebols.

For short term visitors, KT rents WiBro modem and bridge at KT Roaming Center in Incheon International Airport. As of October 2012, WiBro-only USB modem costs 5,000 KRW per day plus 100,000 KRW deposit, WiBro-HSPA USB modem and WiBro Egg cost 8,000 KRW per day plus 150,000 KRW deposit. One-day rent is free at KT Roaming Center, and requires credit card and passport.

Incheon International Airport International airport in South Korea

Incheon International Airport (IIA) is the largest airport in South Korea, the primary airport serving the Seoul Capital Area, and one of the largest and busiest airports in the world. Since 2005, it has been rated the best airport worldwide by Airports Council International every year. It is also rated as the world's cleanest airport and the world's best international transit airport by Skytrax.

In India, Tikona Digital Networks (Independent services provider) offers WiBro service for up to 2 Mbit/s and 4 Mbit/s in many cities. The 2 MBit/s unlimited monthly plan costs Rs. 999.00 (roughly $21).


As of January 2013, KT covers all 80+ cities while SK covers Seoul and a few other major cities in South Korea.

Wibro Manufactures

Network deployment

In November 2004, Intel and Samsung Electronics executives agreed to ensure compatibility between WiBro and Mobile WiMAX technology. [4]

KT Corporation, SK Telecom and Hanaro Telecom (acquired by SK Telecom and renamed SK Broadband) had been selected as Wibro operators in January, 2005. However, Hanaro Telecom cancelled its plan for the WiBro and returned WiBro licence in April 2005.

In September 2005, Samsung Electronics signed a deal with Sprint Nextel Corporation to provide equipment for a WiBro trial. [5]

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

February 10, 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 2006 Winter Olympics, held in Turin, with downlink speed of 10 Mbit/s and uplink speed 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. [6]

KT Corporation launched commercial WiBro service on June 2006. [7]

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.

On April 3, 2007, KT launched WiBro coverage for all areas of Seoul including all subway lines.

In January 2011, KT's mobile network SHOW and home network QOOK merged. Since then, KT has been changed to olleh.

In March, 2011, olleh's WiBro coverage was expanded nationwide covering 85% of Koreans.

As of October 2012, olleh's Wibro covers 88% of the South Korean population.

See also

Related Research Articles

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  1. Malik, Om (February 1, 2009). "By 2012 Koreans Will Get 1Gbps Broadband Connections". Archived from the original on October 19, 2016.
  2. "Adieu Korean Tech, Wibro". KoreaTechToday. January 2, 2019.
  3. Cho, Mu-Hyun (December 7, 2018). "KT and SK Telecom to end WiBro service within the year". ZDNet.
  4. Park, Cony (2004-11-15). "WiBro, WiMax get closer". iBiztoday.com. Archived from the original on January 10, 2005.
  5. "Sprint, Samsung to Explore Wireless Broadband" (Press release). Sprint. September 16, 2005. Archived from the original on 2006-07-24. Retrieved 2008-09-11.
  6. 1 2 "Telecom Speed" . Retrieved 16 July 2018.
  7. "South Korea launches WiBro service". EE Times. 2006-06-30. Retrieved 2010-06-23.