Supelec lte 4G - digital terrestrial tv (DTT) coexistence update - 2013

  • 1,027 views
Uploaded on

LTE - Digital Terrestrial TV (DTT) Coexistance: Brief Update Regulatory & Industry group status

LTE - Digital Terrestrial TV (DTT) Coexistance: Brief Update Regulatory & Industry group status

More in: Technology , Education , Sports
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
1,027
On Slideshare
0
From Embeds
0
Number of Embeds
3

Actions

Shares
Downloads
26
Comments
0
Likes
1

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. LTE / DVB Coexistence finding compromise towards Internet of Everything Regulatory & Industry Alliance State-of-Art (SoA) / Status Update Q1’2013 Thierry Lestable (MS’97, Ph.D’03) Technology & Innovation Manager, Sagemcom
  • 2. Disclaimer • Besides Sagemcom SAS’, many 3rd party copyrighted material is reused within this brief tutorial under the ‘fair use’ approach, for sake of educational purpose only, and very limited edition. • As a consequence, the current slide set presentation usage is restricted, and is falling under usual copyright usage. • Thanks for your understanding! 2© Thierry Lestable, 2012
  • 3. LTE/DVB Coexistence Issues Source: Bundesnetzagentur
  • 4. User Equipment (UE) / Mobile Terminal (MT) Requirements3GPP
  • 5. 3GPP Requirements: UE Channel 1.4 3.0 5 10 15 20 bandwidth MHz MHz MHz MHz MHz MHz∆fOOB (MHz) 2.8 6 10 15 20 25 Spectrum Emission Mask (SEM) Spectrum emission limit (dBm)/ Channel bandwidth ∆fOOB 1.4 3.0 5 10 15 20 Measurement (MHz) MHz MHz MHz MHz MHz MHz bandwidth ± 0-1 -10 -13 -15 -18 -20 -21 30 kHz ± 1-2.5 -10 -10 -10 -10 -10 -10 1 MHz ± 2.5-2.8 -25 -10 -10 -10 -10 -10 1 MHz ± 2.8-5 -10 -10 -10 -10 -10 1 MHz ± 5-6 -25 -13 -13 -13 -13 1 MHz ± 6-10 -25 -13 -13 -13 1 MHz ± 10-15 -25 -13 -13 1 MHz ± 15-20 -25 -13 1 MHz ± 20-25 -25 1 MHz Source: 3GPP TS 36.101 V11.3.0 (2012-12)
  • 6. 3GPP Mobile (UE)Requirements - Example (P=23dBm) Thanks to Dr.M.Lalam for curves
  • 7. 3GPP SEM – Additional Requirements NS_03 NS_04 Spectrum emission limit (dBm)/ Channel bandwidth Spectrum emission limit (dBm)/ Channel bandwidth∆fOOB 1.4 3.0 5 10 15 20 Measurem ∆fOOB 1.4 3.0 5 10 15 20 Measurem(MHz) MH MHz MHz MHz MHz MHz ent (MHz) MHz MHz MHz MHz MHz MHz ent z bandwidth bandwidth ± 0-1 -10 -13 -15 -18 -20 -21 30 kHz ± 0-1 -10 -13 -15 -18 -20 -21 30 kHz± 1-2.5 -13 -13 -13 -13 -13 -13 1 MHz ± 1-2.5 -13 -13 -13 -13 -13 -13 1 MHz ± 2.5- -25 -13 -13 -13 -13 -13 1 MHz ± 2.5- -25 -13 -13 -13 -13 -13 1 MHz 2.8 2.8± 2.8-5 -13 -13 -13 -13 -13 1 MHz ± 2.8-5 -13 -13 -13 -13 -13 1 MHz ± 5-6 -25 -13 -13 -13 -13 1 MHz ± 5-6 -25 -25 -25 -25 -25 1 MHz ± 6-10 -25 -13 -13 -13 1 MHz ± 6-10 -25 -25 -25 -25 1 MHz± 10-15 -25 -13 -13 1 MHz ± 10-15 -25 -25 -25 1 MHz± 15-20 -25 -13 1 MHz ± 15-20 -25 -25 1 MHz± 20-25 -25 1 MHz ± 20-25 -25 1 MHz NS_06/NS_07 Spectrum emission limit (dBm)/ Channel bandwidth ∆fOOB 1.4 3.0 5 10 Measurement (MHz) MHz MHz MHz MHz bandwidth ± 0-0.1 -13 -13 -15 -18 30 kHz ± 0.1-1 -13 -13 -13 -13 100 kHz ± 1-2.5 -13 -13 -13 -13 1 MHz ± 2.5-2.8 -25 -13 -13 -13 1 MHz ± 2.8-5 -13 -13 -13 1 MHz ± 5-6 -25 -13 -13 1 MHz ± 6-10 -25 -13 1 MHz ± 10-15 -25 1 MHz
  • 8. Adjacent Channel Leakage Ratio (ACLR) ∆fOOB E-UTRA channel E-UTRAACLR1 UTRA ACLR2 UTRAACLR1 RBSpurious Emissions Frequency Range Maximum Level Measurement Bandwidth 9 kHz ≤ f < 150 kHz -36 dBm 1 kHz 150 kHz ≤ f < 30 MHz -36 dBm 10 kHz 30 MHz ≤ f < 1000 MHz -36 dBm 100 kHz 1 GHz ≤ f < 12.75 GHz -30 dBm 1 MHz
  • 9. 3GPP Mobile (UE) Requirements - Spurious emission band UE co-existence Table 6.6.3.2-1: Requirements Spurious emission E-UTRA Band Protected band Frequency range (MHz) Maximum Level MBW Note (dBm) (MHz) 20 E-UTRA Band 1, 3, 7, 8, 20, 22, FDL_low - FDL_high -50 1 33, 34, 43 E-UTRA Band 20 FDL_low - FDL_high -50 1 15 E-UTRA Band 38, 42 FDL_low - FDL_high -50 1 2NOTE 2: As exceptions, measurements with a level up to the applicable requirements defined in Table 6.6.3.1-2 are permitted for each assigned E-UTRA carrier used in the measurement due to 2nd, 3rd, 4th [or 5th] harmonic spurious emissions. An exception is allowed if there is at least one individual RB within the transmission bandwidth (see Figure 5.6-1) for which the 2nd, 3rd or 4th harmonic totally or partially overlaps the measurement bandwidth (MBW).NOTE 15: These requirements also apply for the frequency ranges that are less than ∆fOOB (MHz) in Table 6.6.3.1-1 and Table 6.6.3.1A-1 from the edge of the channel bandwidth. 3GPP TS 36.101 V11.3.0 (2012-12)
  • 10. LTE MS - BaselineRequirements – EIRP limits / DTT In-Band 23dBm OOB limits Source: CEPT report 30
  • 11. 3GPP Mobile (UE) Requirements - Band 20 Table 6.2.2-1: UE Power Class EUTRA Class 1 Tolerance Class 2 Tolerance Class 3 Tolerance Class 4 Tolerance band (dBm) (dB) (dBm) (dB) (dBm) (dB) (dBm) (dB) 20 23 ±2 2NOTE 2: 2 refers to the transmission bandwidths (Figure 5.6-1) confined within FUL_low and FUL_low + 4 MHz or FUL_high – 4 MHz and FUL_high, the maximum output power requirement is relaxed by reducing the lower tolerance limit by 1.5 dB 3GPP TS 36.101 V11.3.0 (2012-12)
  • 12. LTE BS (eNB) - BaselineRequirements – EIRP limits / DTT Source: CEPT report 30
  • 13. 3GPP Base Station (eNB) Requirements - DTT Protection Table G-1: EIRP limits for protection of broadcasting (DTT) service Case Measurement filter centre Condition on BS Maximum Level Measurement frequency maximum aggregate EIRP PEIRP,N,MAX Bandwidth / 10 MHz, PEIRP_10MHz (Note)A: for DTT N*8 + 306 MHz, PEIRP_10MHz ≥ 59 dBm 0 dBm 8 MHzfrequencies where 21 ≤ N ≤ 60broadcasting is N*8 + 306 MHz, 36 ≤ PEIRP_10MHz < 59 dBm PEIRP_10MHz – 59 dBm 8 MHzprotected 21 ≤ N ≤ 60 N*8 + 306 MHz, PEIRP_10MHz < 36 dBm -23 dBm 8 MHz 21 ≤ N ≤ 60B: for DTT N*8 + 306 MHz, PEIRP_10MHz ≥ 59 dBm 10 dBm 8 MHzfrequencies where 21 ≤ N ≤ 60broadcasting is N*8 + 306 MHz, 36 ≤ PEIRP_10MHz < 59 dBm PEIRP_10MHz – 49 dBm 8 MHzsubject to an 21 ≤ N ≤ 60intermediate level of N*8 + 306 MHz, PEIRP_10MHz < 36 dBm -13 dBm 8 MHzprotection 21 ≤ N ≤ 60C: for DTT N*8 + 306 MHz, N.A. 22 dBm 8 MHzfrequencies where 21 ≤ N ≤ 60broadcasting is notprotectedNOTE: PEIRP_10MHz (dBm) is defined by the expression PEIRP_10MHz = P10MHz + Gant + 10*log10(Nant ) 3GPP TS 36.104 V11.3.1 (2013-01)
  • 14. 3GPP Base Station (eNB) Requirements Table 6.2-1: Base Station rated output power BS class PRAT Wide Area BS - (note) Medium Range BS < + 38 dBm Local Area BS < + 24 dBm Home BS < + 20 dBm (for one transmit antenna port) < + 17 dBm (for two transmit antenna ports) < + 14dBm (for four transmit antenna ports) < + 11dBm (for eight transmit antenna ports) NOTE: There is no upper limit for the rated output power of the Wide Area Base Station. 3GPP TS 36.104 V11.3.1 (2013-01)
  • 15. 3GPP Base Station (eNB) Requirements - Transmitter RF SpectrumWide Area BS - Category B (Option 1) - Band 20Table 6.6.3.2.1-3: General operating band unwanted emission limits for 5, 10, 15 and 20 MHz channel bandwidth (E-UTRA bands <1GHz) for Category B Frequency offset of Frequency offset of Minimum requirement (Note 1) Measurement measurement measurement filter centre bandwidth (Note filter -3dB point, ∆f frequency, f_offset 4) 0 MHz ≤ ∆f < 5 MHz 0.05 MHz ≤ f_offset < 5.05 MHz 100 kHz 7  f _ offset  − 7 dBm − ⋅  − 0.05  dB 5  MHz  5 MHz ≤ ∆f < 5.05 MHz ≤ f_offset < -14 dBm 100 kHz min(10 MHz, ∆fmax) min(10.05 MHz, f_offsetmax) 10 MHz ≤ ∆f ≤ ∆fmax 10.05 MHz ≤ f_offset < -16 dBm (Note 6) 100 kHz f_offsetmax NOTE 1:For a BS supporting non-contiguous spectrum operation the minimum requirement within sub-block gaps is calculated as a cumulative sum of adjacent sub blocks on each side of the sub block gap. Exception is Df ≥ 10MHz from both adjacent sub blocks on each side of the sub-block gap, where the minimum requirement within sub-block gaps shall be -16dBm/100kHz. 3GPP TS 36.104 V11.3.1 (2013-01)
  • 16. 3GPP Base Station (eNB)Requirements - Example (P=43dBm) Thanks to Dr.M.Lalam for curves
  • 17. Dynamics / Influence of LTE UE’s Mode of operationOFCOM
  • 18. LTE Power Spectral Density variations Source: Real Wireless for Ofcom (Feb.2012)
  • 19. Measurement Example from LTE UE in BlockC(UK)/D(France) – 850MHz Source: Ofcom (August 2012)
  • 20. LTE UE – Measurements Pmax: 23dBm BW: 10MHz 50 RBs Block C (UK) @857MHz 16QAM Source: Ofcom (August 2012)
  • 21. LTE UE - Differences between Block B & CSource: Ofcom (August 2012)
  • 22. LTE UE – near / Far influence onto OOB Source: Ofcom (August 2012)
  • 23. LTE UE – direct influence ofRequired Throughput (RB usage) onto OOB Source: Ofcom (August 2012)
  • 24. LTE UE – Influence of RB(Throughput) onto Emission mask Source: Ofcom (August 2012)
  • 25. Estimation of Separation distance between LTE UE and DTTdeviceOFCOM
  • 26. LTE Uplink interference towards DTT Rx – Use casesFixed Roof-top DTT reception Set-Top DTT reception Source:Ofcom (Feb.2012)
  • 27. Protection Ratio (PR) –Interference – Example/Link budget ITU-R 419-3 Source:Ofcom / Real Wireless (Feb.2012)
  • 28. Protection Ratio (PR) –Interference – Example/Link budget Source:Ofcom (Feb.2012)
  • 29. Minium Separation distance (m): DTT @786MHz100% LTE Interference Activity 10% LTE Interference Activity Source:Ofcom (Feb.2012)
  • 30. Minium Separation distance(m): DTT @786MHz, 100% LTE Source:Ofcom (Feb.2012)
  • 31. Estimation of Separation distance between LTE UE and DTTdeviceEN 55020
  • 32. CENELEC - EN 55020/2007 Source: EN 55020 - 2007
  • 33. CENELEC - EN 55020/A11 Source: Amendment A11, July 2012
  • 34. LTE Protection Ratios for DVB-T & DVB-T2ITU-R
  • 35. ITU-R – Protection Ratio for DVB-T2 / LTE UE (1/2) Un-corrected Source: ITU-R (Nov.2012) WP6A
  • 36. ITU-R – Protection Ratio &overload for DVB-T2 / LTE UE (2/2) Source: ITU-R (Nov.2012) WP6A
  • 37. ITU-R – Correction Factors tobe applied Vs DVB-T2 variants Source: ITU-R (Nov.2012) WP6A
  • 38. ITU-R: RECOMMENDED Protection Ratio (PR) & Overload Threshold (Oth) To be used for sharing studies (Mix of different tuners categories) Source: ITU-R (Nov.2012) WP6A
  • 39. ITU-R Tuners types / Categories
  • 40. Identification of issues & solutions proposalsDIGITAL EUROPE
  • 41. DTT – Categories of Radiated & conducted interferences (1/2) Source: Digital Europe, Dec.2012 Low-Pass Filter AGC
  • 42. DTT – Categories of Radiated & conducted interferences (2/2)
  • 43. Joint Working Group (JWG) on Digital Dividend (DD) - ProposalsETSI/CENELEC
  • 44. CENELEC – ETSI 2011: JointWorking Group (JWG) on Digital Dividend http://docbox.etsi.org/Etsi_Cenelec/PUBLI C%20FOLDER%20on%20DD/ Source: CENELEC/ETSI
  • 45. NorDig v2.0 – immunity UHF Source: CENELEC/ETSI
  • 46. EN 55020 – Analog Immunity RF Voltage Source: CENELEC/ETSI
  • 47. EN 55020 – DVB-T immunity RF Voltage Source: CENELEC/ETSI
  • 48. D-Book – immunity UHF Source: CENELEC/ETSI
  • 49. D-Book 7, v1 – 2011 / v2 - 2012DTG-UK
  • 50. D-Book 7 (DTG) (1/4) •“The exact mechanism for this is not yet understood, but•Digital Book 7, part A it is thought that it may be caused by disturbances to the receivers automatic gain control (AGC) circuitry • Section 9.14.2.1 resulting from the time-varying LTE signal. Equally, it has been seen that some well-designed receivers are ‘Interference from LTE virtually immune to the differences between the constant power signals and the time-varying signals. Signals’ •To minimise the risk of disturbance to television reception, it is very important therefore that receiver designers ensure that their implementations are unaffected by such time-varying LTE signals. The rest of this section first describes the interference environment, and then some preliminary tests. •Note that these tests are considered preliminary at this stage, so it may be considered necessary to change them in the near future. For the avoidance of doubt, these LTE protection ratios are the values that will be used for testing new receivers, but it should be remembered that some older receivers already deployed may have significantly worse performance in this respect.”V1, March 2011 / V2, March 2012
  • 51. D-Book 7 (DTG) (2/4) LTE interference test conditions •Worst cases for interferences: -Low activity (BS/UE) - Time-varying signal enveloppePreliminary LTE interference test tolerances -DTT receiver architecture - CAN tuner (super- heterodyne): band C worst - Si Tuner: Band A worst
  • 52. D-Book 7 (DTG): DVB-T/T2Modulation Modes (3/4)DVB-T DVB-T2
  • 53. D-Book 7 (DTG): LTE Testsarrangements (4/4) BS (eNodeB) UE/Terminal
  • 54. Unified NorDig v2.4, 2013NORDIG
  • 55. NorDig v2.4 Orange FR DD frequencies NorDigrequirementsare the most demanding! Even harder than DTG (UK)January 2013 Table 3.17, p.51
  • 56. Special Focus in FranceLTE AUCTIONS
  • 57. France @2,6GHz @800MHz Trials in 2012 Lille Marseille Lyon Mass Commercial Launch in 2013N.B1: deployment @800MHz expected to be slow due to frequency plan from ANFR + potential issues with Digital TVN.B2: @2.6GHz, still issues with some geographical locationsN.B3: @1800 MHz, Waiting for Official Answer from ARCEP to allow Bouygues Telecom to refarm its 1800MHz with LTE
  • 58. France – Digital Dividend LTE allocation Orange FR DD frequencies (Ofcom & DTG-UK) Mapping
  • 59. CONCLUSIONS & WAY-FORWARD
  • 60. NXP Tuners Released Report 148 Nov.2012 D-Book 7, v1 D-Book 7, v2 Jun.2010 Jan.2013TDA 18218 TDA 18212* Mar.2011 Mar.2012 TDA 18214 08/07/2009 26/08/2010 11/02/2013 Jul.2012 Strong Immunity to LTE & WLANS EN 55020/A11 Claimed by NXP Feb.2011 Dec.2012 JWG DD *SW upgrade feasible to reach DTG & NorDig Requirements
  • 61. Open Discussions w.r.t Standard & Certification Strategy •Strategy/approach•EN 55020 i)EMC Directivesi)Amendment to cover all Types of ii)Voluntary & applied CertificationDVB receivers, not only cable? System (e.g. NorDig, D-Book, …)ii)CISPR 35 proposal: prEN55035 i) 3V/m to be relaxed to 1V/m? ii) Whole band [470-862] instead of [790-862]?
  • 62. Thanks for your attention… Any Question, any interest in Internship and/or Job application: Thierry.lestable@sagemcom.com