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It is found that switching frequencies F1 (1.82 GHz), F2 (2.18 GHz), F4 (2.38 GHz), and F5 (2.44 GHz) are located in DCS1800 (1.71-1.88 GHz), UMTS (2.11-2.20 GHz), WiBro (2.3-2.4 GHz), and Bluetooth (2.4-2.48 GHz) frequency bands, respectively; and F3 (2.22 GHz) is located in the frequency band of 2.2-2.29 GHz used for space research and Earth exploration-satellite communications.
Lee, "Performance of UAV (unmanned aerial vehicle) communication system adapting WiBro with array antenna," 11th International Conference on Advanced Communication Technology (ICACT), Vol.
The company said it will raise the number of Wi-Fi Internet hotspots from the current 28,000 to 100,000 by the end of next year and expand its WiBro, or high-speed wireless broadband technology, network from 19 cities to a nationwide system by next March.
By connecting WCDMA and Wibro USB modem designed for wireless internet use of portable PCs, to the Bridge, several people can simultaneously use the Internet wireless.
Cho, "Design and Implementation of a Simulator Based on a Cross-Layer Protocol between MAC and PHY Layers in a WiBro Compatible IEEE 802.16e OFDMA System", IEEE Communications Magazine, Vol.
Through the years, ETRI has developed the "Electronic Telephone Switch(TDX)" to pave the way for the one-phone, one-household era, "4M/16M/64M DRAM" to revolutionize memory semiconductors, commercialization of "the Digital Mobile Telecommunications System(CDMA)" to lay down the foundation for Korea's emergence as a mobile phone powerhouse, "Digital Multimedia Broadcasting(terrestrial DMB) technology" to institutionalize the "TV in my hand" culture, "WiBro technology" for mobile Internet, and "NoLA technology" as the 4th-generation mobile data transfer system.
In fact, Konkuk University has already set up ubiquitous learning infrastructure with WIBRO technology for e-learning.
The RF5602 is also applicable for 2.4 GHz ISM band applications, PCS communications systems, and WiBro 2.3 GHz - 2.4 GHz applications.
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