Doc.: IEEE 802.18-03-0046-00-0000 Submission July 2003 Andy Gowans (UK RA) UK Ultra Wide Band (UWB) Compatibility Study Andy Gowans & Bharat Dudhia UK.

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Presentation transcript:

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UK Ultra Wide Band (UWB) Compatibility Study Andy Gowans & Bharat Dudhia UK Radiocommunications Agency

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Compatibility Study CEPT PT SE24 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

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Compatibility Study CEPT PT SE24 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

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) Compatibility Study 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.

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) FCC UWB emissions limits for indoor communication and measurement systems. Units with center frequencies greater than 3.1 GHz

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) FCC UWB emissions limits for outdoor communication and measurement handheld systems. Units with center frequencies greater than 3.1 GHz

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) Proposed CEPT emissions limits for indoor and outdoor UWB communication and measurement systems.

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into DVB-T (1) 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)

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into DVB-T (2) C/I Results 6.5 dB (QPSK) 11.6 dB (16 QAM) 19.4 dB (64 QAM) * Protection Distances (SE24 Calculations) UWB emission level MUSMUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz)33.31m10.53 Proposed CEPT Mask0.01m0m

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into DAB (1) Terrestrial Digital Audio Broadcasting Design for fixed, portable and mobile reception ETSI Standard (EN ) 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) ( MHz) L band (1.5GHz) Failure criteria- subjective listening test

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into DAB (2) C/I Results dB Protection Distances (SE24 Calculations) UWB emission level MUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 22 m 7 m Proposed CEPT Mask <1m <1m

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into Bluetooth (1) A global standard for wireless connectivity connecting mobile phones, computers, laptops connecting mobile phones, computers, laptops, Low Power - Low Cost radio links (Voice and Data ) Technology MHz ISM Band > ETS 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

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into Bluetooth (2) C/I Results 17 dB (Voice) 19 dB (data-file transfer test) 20 dB (BER Tests) Protection Distances (SE24 Calculations) UWB emission level MUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 2.6 m 0.8 m Proposed CEPT Mask <1m <1m

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into PCN/GSM (1) 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%)

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into GSM (2) C/I Results 9 dB Protection Distances (SE24 Calculations) UWB emission level MUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 41 m 13 m Proposed CEPT Mask <1m <1m

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference into PCN (3) C/I Results 9 dB Protection Distances (SE24 Calculations) UWB emission level MUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz) 21 m 6.6 m Proposed CEPT Mask <1m <1m

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) UWB Interference 5GHZ RLAN 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/ Protection Distances (SE24 Calculations) UWB emission level MUS MUS+10dB EMC/FCC Part 15 limit (-41dBm/MHz)5.67m1.79m Proposed CEPT Mask5.67m1.79m Failure criteria -10% Frame Error Rate

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) Summary 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

doc.: IEEE Submission July 2003 Andy Gowans (UK RA) CEPT compatibility study in progress PT SE24 - provisional results this includes aggregate interference analysis for a no.of devices