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Tecnologia Wimax & Sperimentazione Ericsson-FUB. Benevento 11/05/2007. Contents What is WiMAX ? Ericsson-FUB Test results. Ing. Francesco Vallone Network Infrastruction Area Responsible CU Enterprise. What is WiMAX?. Acces radio System in 3,5 GHz band IEEE 802.16d (2004)

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Presentation Transcript
slide2

Contents

  • What is WiMAX ?
  • Ericsson-FUB
  • Test results

Ing. Francesco Vallone

Network Infrastruction

Area Responsible

CU Enterprise

what is wimax
What is WiMAX?
  • Acces radio System in 3,5 GHz band
  • IEEE 802.16d (2004)
    • No mobility
    • QOS
  • IEEE 802.16e
    • Mobility
    • Handover
  • Rural / Suburban environment
  • Suburban / Urban environment
wimax transmission elements
Wimax transmission elements

CPE

Outdoor

CPE

Indoor

BTS

rural deployment scenario 1
Rural Deployment Scenario [1]
  • Low Density 3.5GHz Rural Wireless Broadband Network Deployment using self-install Indoor CPE + Professional install Outdoor CPE
    • Basestation serving remote users

All ranges for non-LOS

BTS to Indoor CPE = 2.5km

BTS to Outdoor CPE = >10km

rural deployment scenario 2
Rural Deployment Scenario [2]
  • Low Density 3.5GHz Rural Wireless Broadband Network Deployment using Indoor & Outdoor CPE
    • Low Sited (15m) Basestations serving remote users

MicroMAX Low Site

Outdoor CPE: 6km

All cell diameters are for non-LOS

Indoor CPE: 1.2km

sperimentazione fub ericsson della tecnologia wimax 2005 2006

Sperimentazione FUB-Ericsson della Tecnologia WiMAX 2005-2006

Benevento,11 maggio 2007

test scenario
Test Scenario

Rome Ericsson Campus

  • BTS situated at the Ericsson Campus, Via Anagnina 203, Rome
  • Rural and suburban environment, very heterogeneous
  • CPE location indoor and outdoor
  • GSM/UMTS co-siting, antennas near various sources of potential interference
  • Measurements made in LOS e NLOS
  • Measurements made up to a distance of 3,8 Km
  • Measurements made at numerous and variuos locations – based on preliminary radio coverage measurements
  • 60° Sectors
instruments customized van

Test Scenario

Instruments: Customized VAN
  • Rohde&Schwarz Receiver up to 7 GHz
  • Software Platform to measure RF and QoS georeferenced
  • Sampling of the signal according to “LEE Criterion” in time and space
instruments agilent vector analyzer

Test Scenario

Instruments: Agilent Vector Analyzer
  • Vector Signal Analyser Agilent E4443A 3Hz- 6,7 Ghz
  • Wimax Signal Analyser Tool for IEEE 802.16-2004

Principal Functions:

    • OFDM Specific Measurements
    • Bandwith
    • EVM
    • Burst Power
    • Digital Modulation Costellation
transmission chain
Transmission Chain

Schematic RF Setup

Ericsson Rome Campus

EiRP=36dBm

V Pol

Azi. 0°

V Pol

Azi. 90°

X Pol

Option

Antenna Gain = 16dBi

Power at the Antenna Connector = 20dBm

43m 7/8 Feeder Loss = 5dB

25 dBm

transmission chain1
Transmission Chain

RF Principal Values

  • Antenna Height 23m
  • Antenna Type European Antenna Modello Vector; Telsa
  • Gain 16 dBi
  • Band 3400-3572 MHz
  • Polarization Verticale; +- 45°
  • Horizontal Plane 60°
  • Vertical Plane 10°
  • Electrical Down Tilt 2° (Vector); 0°(Telsa)
  • Mechanical Down Tilt from 0° to 6°
  • Azimuth Cell 1 0°
  • Azimuth Cell 2 90°
  • Feeder Loss including jumpers 5 dB
  • Feeder Length 43m Tipo 7/8 RFS Cell Flex LCF 7850JA

EIRP= 36dBm

slide14

90°

Test Results

DriveTest with Van

slide15

250

300

150

140

360

370

240

220

260

130

70

100

10

100

210

Test Results

All tests were performed at 0° azimuth

slide16

865

324

400

490

500

1100

1200

1000

3800

2300

Test Results

slide17

Test Results

Distance 324 m

Environment Outdoor NLOS

Weather Sunny

Modulation DL 16 QAM 1/2

Modulation UL QPSK 3/4

Signal strength DL - 86,3 dBm

Signal strength UL - 86 dBm

CPE Tx Power 23 dBm

SNR DL 16 dB

SNR UL 12 dB

Throughput DL 2 Mbit/s

Throughput UL 455 Kbit/s

90°

14

15

CPE not synchronized – 500m

slide18

Test Results

Distance 865m

Environment Outdoor NLOS

Weather Sunny

Modulation DL QPSK 3/4

Modulation UL BPSK 1/2

Signal strength DL - 87 dBm

Signal strength UL - 89 dBm

CPE Tx Power 24 dBm

SNR DL 13,4 dB

SNR UL 10 dB

Throughput DL 1 Mbit/s

Throughput UL 290 Kbit/s

Distance 1000 m

Environment Outdoor LOS

Weather Sunny

Modulation DL 64 QAM 3/4

Modulation UL 64 QAM 3/4

Signal strength DL - 57 dBm

Signal strength UL - 74,5 dBm

CPE Tx Power -1 dBm

SNR DL 30 dB

SNR UL 25 dB

Throughput DL 9,13 Mbit/s

Throughput UL 4,15 Mbit/s

18

20

90°

slide19

Test Results

Distance 1200 m

Environment Outdoor LOS

Weather Sunny

Modulation DL 64 QAM 3/4

Modulation UL 64 QAM 3/4

Signal strength DL - 65 dBm

Signal strength UL - 75 dBm

CPE Tx Power 6,5 dBm

SNR DL 27,5 dB

SNR UL 25 dB

Throughput DL 6,85 Mbit/s

Throughput UL 2,89 Mbit/s

23

90°

bs angera

SS

BS Angera

7,5Km

6,4Km - Fosseno

5,6Km

3Km