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Soontai LTE Filter

Soontai LTE Filter

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Soontai LTE Filter

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  1. Soontai LTE Filter 2011.03.30 v1.0

  2. What is LTE ? How does LTE interfere with DTT ? How to filter out LTE interference ? Soontai LTE filter Contents

  3. What is LTE ? • LTE (Long Term Evolution) is a 4th generation (4G) standard for mobile communication. • Currently 17 communication companies worldwide have adopted LTE, more than 100 more are about to follow. • LTE uses - FDD (Frequency Division Duplexing) and - TDD (Time Division Duplexing) protocols • FDD : LTEbase stations and handheld devices use different bands • TDD : LTE base stations and handheld devices use the same bands

  4. Norway TeliaSonera: - 2009.12.15 - TDD 2.6GHz Sweden TeliaSonera: - 2009.12.15 - TDD 2.6GHz Finland TeliaSonera: - 2010.11.30 - TDD 2.6GHz Denmark TeliaSonera: - 2010.12.09 - TDD 2.6GHz Estonia EMT: - 2010.12.17 - TDD 2.6GHz Canada 700MHz/2.6GHz 2010 auction Germany Vodafone : - 2010.12.01 - FDD 800MHz Japan NTT DoCoMo : - 2010.12.24 - FDD 1.5GHz USA MetroPCS : - 2010.09.21 - FDD 1.4/1.7GHz Verizon : - 2010.12.05 - FDD 700MHz Brazil 2.6GHz 2013 auction Uzbekistan MTS / UCell: - 2010.07.28 - 2010.08.09 - TDD 2.6GHz Austria A1 Telekom - 2010.11.05 - TDD 2.6GHz Poland Mobyland, CenterNet - 2010.09.07 - TDD 2.6GHz

  5. Digital TV Frequency LTE Downlink Band LTE Uplink Band FDD LTE 800MHz Spectrum

  6. How does LTE interfere with DTT ? LTE-800 Transmission Interferance into DTT LTE Base Station

  7. LTE User Equipment

  8. LTE Interference to DTT • When LTE uses the 800 MHz “digital dividend” (Europe 790-864MHz) or the 700 MHz “white space” band (USA 698-806MHz) there will be interference with digital video broadcast signals (DVB-T/ATSC). DTV picture noise: How to solve this problem?

  9. LTE Interferes with DTT Soontai LTE Filter LTE signal DVB-T signal TV Antenna LTE Base Station DVB-T signal LTE signal Soontai LTE Filter DVB-T set-top box DVB-T signal LTE signal LTE User Equipememt

  10. Soontai LTE Filter LTE is the 4th generation mobile communication standard. This standard uses the frequency band next to the DVB-T band (790 - 862MHz in Europe, 698 - 806MHz in the Americas), which will lead to interferences with DVB TV or set-top-boxes. According to tests from Ofcom this interference can be eliminated with the help of a high rejection low pass filter. Our LTE Filters pass all requirements to eliminate interferences by LTE signals on digital broadcast reception. As a professional filter designer, Soontai can offer the LTE filter in a variety of packages and frequencies for various markets. Your inquiries are welcome. For more information please contact Mr. Kevin Chang E-mail : kevin.chang@soontai.com www.soontai.com

  11. Thanks