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Andy Gowans & Bharat Dudhia UK Radiocommunications Agency

UK Ultra Wide Band (UWB) Compatibility Study. Andy Gowans & Bharat Dudhia UK Radiocommunications Agency. CEPT PT SE24 UWB Study

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Andy Gowans & Bharat Dudhia UK Radiocommunications Agency

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  1. UK Ultra Wide Band (UWB) Compatibility Study Andy Gowans & Bharat Dudhia UK Radiocommunications Agency Andy Gowans (UK RA)

  2. CEPT PT SE24 UWB Study To investigate the interference potential of various Pulsed UWB technology on existing and planned services Laboratory measurements and theoretical calculations. UWB Interference and victim receiver bandwidth Noise - like (Receiver BW < UWB PRF) Pulse - like (Receiver BW > UWB PRF) UWB Signal characteristics for Interference tests PRF (1/5/10 MHz) Modulation type > PPM UWB Compatibility Study CEPT PT SE24 Andy Gowans (UK RA)

  3. Victim Services Broadcast services (T-DAB / DVB-T) Radio Astronomy (Passive services) Earth Exploration Satellites (Active & Passive) GPS UMTS Galileo PCN Aeronautical services COFDM ENG/OB SRDs 5GHz HIPERLAN UWB Compatibility Study CEPT PT SE24 Andy Gowans (UK RA)

  4. RA Contribution to CEPT To assess the UWB interference into (1) DVB-T (2) TDAB (MODE 1 & 2) (3) PCN (GSM) (4) Bluetooth (5) 5GHz RLAN Objectives (1) C/I Ratios (based on UWB power falling into victim receiver's IF BW) (2) Minimum separation distances (3) Maximum permissible E.I.R.P. for UWB (4) Compare results with use of proposed CEPT and EMC/FCC limits. Compatibility Study Andy Gowans (UK RA)

  5. Proposed CEPT emissions limits for indoor and outdoor UWB communication and measurement systems. Andy Gowans (UK RA)

  6. Digital Terrestrial TV COFDM (multi carrier modulation) - 2k & 8k FFT QPSK - 16QAM - 64QAM 2/3 FEC 1/32 Guard interval 7.61 MHz BW * UK Mode (2k FFT, 64 QAM, 2/3 FEC, 1/32 Guard Interval) Conducted Measurements Objective measurements (BER tests) Failure criteria - BER of 2x10-4 (before RS decoder) UWB Interference into DVB-T (1) Andy Gowans (UK RA)

  7. C/I Results 6.5 dB(QPSK) 11.6 dB (16 QAM) 19.4 dB (64 QAM) * Protection Distances(SE24 Calculations) UWB emission levelMUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 33.31m 10.53 Proposed CEPT Mask 0.01m 0m UWB Interference into DVB-T (2) Andy Gowans (UK RA)

  8. Terrestrial Digital Audio Broadcasting Design for fixed, portable and mobile reception ETSI Standard (EN 300 401) COFDM - DQPSK 1.5 MHz BW 5/6 Near CD quality Programs per Block Receiver Sensitivity : -81dBm - (CENELEC standard) -90dBm (typical receiver performance) Frequency allocations :VHF (band 3) (217-230 MHz) L band(1.5GHz) Failure criteria - subjective listening test UWB Interference into DAB (1) Andy Gowans (UK RA)

  9. C/I Results 9.6 - 12.5 dB Protection Distances(SE24 Calculations) UWB emission levelMUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 22m7m Proposed CEPT Mask <1m <1m UWB Interference into DAB(2) Andy Gowans (UK RA)

  10. A global standard for wireless connectivity connecting mobile phones, computers, laptops, Low Power - Low Cost radio links(Voice and Data ) Technology 2400 - 2483.5 MHz ISM Band > ETS 300 328 Fast Frequency Hopping system over 79 channels - 1MHz spacing 625μs timeslot pseudo random hopping sequences frequency separation at least 6MHz Time division duplex (TDD) Failure Criteria - Voice (subjective listening), BER, file transfer time UWB Interference into Bluetooth (1) Andy Gowans (UK RA)

  11. C/I Results 17 dB (Voice) 19 dB (data-file transfer test) 20 dB (BER Tests) Protection Distances(SE24 Calculations) UWB emission levelMUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 2.6m0.8m Proposed CEPT Mask <1m <1m UWB Interference into Bluetooth(2) Andy Gowans (UK RA)

  12. 2nd Generation Pan European Cellular System GSM(800MHz) / PCN(1800 MHz) GFSK, 270kb/s, TDMA(8 user per channel) Receiver Sensitivity(-102 dBm) Conducted Measurements GSM test set C/I Measurements Failure Criteria (mobile station receive quality 4 with traffic channel BER ~ 2%) UWB Interference into PCN/GSM (1) Andy Gowans (UK RA)

  13. C/I Results 9 dB Protection Distances(SE24 Calculations) UWB emission levelMUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 41m13m Proposed CEPT Mask <1m <1m UWB Interference into GSM(2) Andy Gowans (UK RA)

  14. C/I Results 9 dB Protection Distances(SE24 Calculations) UWB emission levelMUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 21 m 6.6 m Proposed CEPT Mask <1m <1m UWB Interference into PCN(3) Andy Gowans (UK RA)

  15. C/I Results (dB) 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 54Mbps* BPSK 1/2 BPSK 3/4 QPSK 1/2 QPSK 3/4 16QAM 1/2 16QAM 3/4 64QAM 3/4 6 9 9 10 13 24 26 Protection Distances(SE24 Calculations) UWB emission levelMUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 5.67m 1.79m Proposed CEPT Mask 5.67m 1.79m Failure criteria - 10% Frame Error Rate UWB Interference 5GHZ RLAN Andy Gowans (UK RA)

  16. CEPT compatibility study in progress Pulsed UWB-PPM >> Noise like interference UWB emission level EMC/Part 15 limit(-41dBm/MHz) >>Sharing under worst case scenario may not be possible(DVB-T/PCN/TDAB/Bluetooth) Proposed CEPT (SE24) mask >> Separation distance <1m apart from 5GHz RLANs. Effect of different UWB-PRF (1/5/10 MHz)>>2-3 dB Further Measurements UWB/3G ITU-R Task Group 1/8 Summary Andy Gowans (UK RA)

  17. CEPT compatibility study in progress PT SE24 -provisional results this includes aggregate interference analysis for a no.of devices Andy Gowans (UK RA)

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