Presentation on theme: "1 Teletronik LTE Filter. 2 What is LTE ? What is LTE ? How does LTE interfere with DTT ? How does LTE interfere with DTT ? How to filter out LTE interference."— Presentation transcript:
1 Teletronik LTE Filter
2 What is LTE ? What is LTE ? How does LTE interfere with DTT ? How does LTE interfere with DTT ? How to filter out LTE interference ? How to filter out LTE interference ? Soontai LTE filter Soontai LTE filter Contents
3 What is LTE ? LTE (Long Term Evolution) is a 4 th 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 : LTE base stations and handheld devices use different bands TDD : LTE base stations and handheld devices use the same bands
5 FDD LTE 800MHz Spectrum Digital TV FrequencyLTE Downlink BandLTE Uplink Band
6 LTE-800 Transmission Interferance into DTT LTE Base Station How does LTE interfere with DTT ?
7 LTE User Equipment
8 LTE Interference to DTT When LTE uses the 800 MHz digital dividend (Europe MHz) or the 700 MHz white space band (USA MHz) there will be interference with digital video broadcast signals (DVB-T/ATSC). DTV picture noise: How to solve this problem?
9 DVB-T signal LTE signal LTE Interferes with DTT DVB-T set-top box TV Antenna LTE signal LTE Base Station LTE User Equipememt DVB-T signal LTE Filter DVB-T signal LTE signal
10 Teletronik LTE Filter LTE is the 4th generation mobile communication standard. This standard uses the frequency band next to the DVB-T band ( MHz in Europe, MHz 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, teletronik can offer the LTE filter in a variety of packages and frequencies for various markets. Your inquiries are welcome.