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Statistical Analysis for Out-Of-band Emission level of IMT UE

CJK-IMT28-023 . Statistical Analysis for Out-Of-band Emission level of IMT UE. LIM, Euntaek (et.lim@samsung.com) CJK IMT 28 Xi’an ( 西安 ), China June 2 ~ 3, 2011. Interference scenario. Interference from IMT UE to DTV Receiver 5MHz Guard band: between IMT UE and ATSC Receiver

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Statistical Analysis for Out-Of-band Emission level of IMT UE

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  1. CJK-IMT28-023 Statistical Analysis for Out-Of-band Emission level of IMT UE LIM, Euntaek (et.lim@samsung.com) CJK IMT 28 Xi’an (西安), China June 2 ~ 3, 2011

  2. Interference scenario • Interference from IMT UE to DTV Receiver • 5MHz Guard band: between IMT UE and ATSC Receiver • 9MHz Guard band: between IMT UE and DVB-T Receiver • ※ FDD option of AWG harmonized frequency allocation Interference

  3. SimulationParameters • DTV and LTE UE system

  4. Simulation environment • Configuration of LTE system • Path loss model

  5. Simulation methodology • Flowchart for calculating DTV outage

  6. Simulation result (1/5) • DTV outage probability according to ACIR and ATSC Coverage

  7. Simulation result (2/5) • DTV Outage according to ACIR of LTE UE Increasing DTV Outage based on no interference from LTE UE

  8. Simulation result (3/5) • DTV Outage according to DTV Coverage with given ACIR Increasing DTV outage based on no interference

  9. Simulation result (4/5) • DTV Outage with Fixed power of LTE UE based on 3GPP Spec. • LTE UE spectrum mask: -25dBm/MHz (ACLR: 41dB) • LTE UE Coexistence emission: -50dBm/MHz (ACLR: 66dB)

  10. Simulation result (5/5) • DTV Outage for the density of LTE UE • DTV outage slightly increases when the density of LTE UE increases 5 Users/km2 to 20 User/Km2 ( DTV Coverage:97km)

  11. Summary • DTV Outage based on APT band plan • No power control • All LTE UEs emit the same signal level in DTV in band based on 3GPP LTE UE Spectrum emission mask • Power control • LTE UE emits the signal level in DTV in band based on 3GPP LTE UE ACLR

  12. Annex

  13. Comparison with measurement and calculation • DTV sensitivity level when LTE UE causes interference • Measurement result • Calculation result with LTE UE Tx ACLR (It assumes that ATSC ACS is much more than LTE UE ACLR) ※ MeasuredLTE UE ACLR

  14. SimulationParameters • Measurement result of minimum sensitivity level of DTV due to interference from LTE UE in US band plan ※ MeasuredLTE UE ACLR

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