radio frequency exposure

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Radio Frequency Electromagnetic Exposure

WCDMA

Safety Information

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2

Ericsson AB 2009-2012. All rights reserved. No part of this document may be reproduced in any form without the written permission of the copyright owner.

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Contents

1 Introduction 4

2 Compliance Boundaries for Electromagnetic Exposure 5

References 14

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1 Introduction

This document provides information on Radio Frequency (RF) Electromagnetic Field (EMF) exposure from typical antennas connected to an RBS in the 6000 family.

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2 Compliance Boundaries for Electromagnetic Exposure

The compliance boundary defines the minimum separations that should be kept between the antenna and a person to ensure that the ICNIRP1 and FCC2, 3 RF exposure limits are not exceeded.

Ericsson has performed RF exposure assessments of typical configurations of the RBS with recommended antennas. The resulting dimensions, in meters, for a compliance boundary for both public and occupational exposure are shown in Table A1 (RBS 6102, RBS6201, RBS 6101, RBS 6202, RBS 6131) and Table A2 (RBS 6601, RBS 6301).

The compliance boundary is defined as a cylinder surrounding the antenna, see Figure 1.

Figure 1. Cylindrical Compliance Boundary

The antenna is not located at the center of the cylinder. Instead it is located almost at the edge, facing towards the center of the cylinder. The distance between the back of the antenna and the cylinder is the "Distance behind antenna". The height of the cylinder is the antenna height plus a certain, equal, distance above and below the antenna.

1 ICNIRP, "Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300GHz)", International Commission on Non-Ionizing Radiation Protection, Health Physics, vol. 74, no. 4, 1998. 2 FCC, Code of Federal Regulations CFR title 47, part 1.1310 "Radiofrequency radiation exposure limits", Federal Communications Commission (FCC), August 1997. 3 The values in Tables A1 through A3 have been determined using the ICNIRP reference levels but are applicable also for the FCC maximum permissible exposure (MPE) limits.

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Table A1 Compliance Boundary Dimensions for General Public (GP) and Occupational (O) Exposure for Typical Configurations of RBS 6102, RBS 6201, RBS 6101, RBS 6202 and RBS 6131.

Mode and configuration Dimensions of the cylindrical compliance boundary (m)

Diameter Height Distance behind antenna

Three-sector configurations GP O GP O GP O

WCDMA 17/2100

3x1, 80 W 4.0 0.7 1.6 1.4 <0.1 <0.1 3x2, 30 W 2.3 0.6 1.5 1.4 <0.1 <0.1

WCDMA 2100 3x1, 100 W 4.8 0.8 1.6 1.4 <0.1 <0.1 3x2, 30 W 2.3 0.6 1.5 1.4 <0.1 <0.1

WCDMA 1900 3x1, 100 W 4.9 0.9 1.6 1.4 <0.1 <0.1 3x2, 30 W 3.1 0.7 1.5 1.4 <0.1 <0.1

WCDMA 1800 3x1, 100 W 5.1 1.1 1.5 1.4 <0.1 <0.1 3x2, 30 W 3.5 0.7 1.5 1.4 <0.1 <0.1

WCDMA 15004 3x1, 40 W 3.4 0.7 1.6 1.4 <0.1 <0.1 3x2, 30 W 4.6 1.0 1.6 1.4 <0.1 <0.1

WCDMA 900 3x1, 100 W 5.7 2.5 1.6 1.3 <0.1 <0.1 3x2, 30 W 4.3 1.8 1.5 1.3 <0.1 <0.1

WCDMA 850 3x1, 100 W 5.7 2.6 1.6 1.4 <0.1 <0.1 3x2, 30 W 4.3 1.8 1.5 1.3 <0.1 <0.1

Expanded uncertainty (k=2) 95 % for power density calculations ± 2.3dB

Note: Table A1 shows examples for specified typical antennas. As the antenna field distributions will differ, complete calculations or measurements may be necessary to establish the compliance boundary for other configurations chosen by the customer. For further information on calculation methods, see: Radio Frequency Electromagnetic Fields, 124 46-EN/LZT 720 0399.

Note: The expanded uncertainty (k=2) is ±2.3 dB for the underlying calculations of the power density used for assessment of the compliance boundary dimensions listed in Table A1.

4 1500 MHz is not yet released for RBS 6101/6202 (only released for RBS 6102/6201).

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Table A2 Compliance Boundary Dimensions for General Public (GP) and Occupational (O) Exposure for Typical Single-Antenna Configurations of RBS 6601 and RBS 6301.

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Mode and configuration

Dimensions of the cylindrical compliance boundary (m)

Diameter Height Distance behind antenna

Three-sector configurations GP O GP O GP O

WCDMA 850

3x1, 20 W 3.3 1.2 1.4 1.3 <0.1 <0.1 3x1, 40 W 4.8 2.0 1.5 1.3 <0.1 <0.1 3x1, 60 W 5.9 2.6 1.6 1.4 <0.1 <0.1 3x1, 80 W 6.8 3.1 1.7 1.4 <0.1 <0.1 3x2, 40 W 6.7 3.0 1.7 1.4 <0.1 <0.1 3x2, 60 W 8.2 3.7 1.9 1.4 <0.1 <0.1 3x1, 20 W, pol.div. 3.3 1.2 1.4 1.3 <0.1 <0.1 3x1, 40 W, pol.div. 4.8 2.0 1.5 1.3 <0.1 <0.1 3x1, 60 W, pol.div. 5.9 2.6 1.6 1.4 <0.1 <0.1 3x2, 40 W, pol.div. 6.7 3.0 1.7 1.4 <0.1 <0.1 3x2, 60 W, pol.div. 8.2 3.7 1.9 1.4 <0.1 <0.1

WCDMA 900 3x1, 20 W 3.3 1.0 1.4 1.3 <0.1 <0.1 3x1, 60 W 5.9 3.0 1.6 1.4 <0.1 <0.1 3x1, 80 W 6.7 3.0 1.7 1.3 <0.1 <0.1

WCDMA 1800 3x1, 20 W 3.3 1.0 1.4 1.3 <0.1 <0.1 3x1, 60 W 5.9 3.0 1.6 1.4 <0.1 <0.1 3x1, 80 W 6.2 1.6 1.6 1.4 <0.1 <0.1

WCDMA 1900

3x1, 20 W 1.7 0.3 1.4 1.4 <0.1 <0.1 3x1, 40 W 3.7 0.6 1.5 1.4 <0.1 <0.1 3x1, 60 W 5.1 0.9 1.6 1.4 <0.1 <0.1 3x1, 80 W 6.1 1.3 1.6 1.4 <0.1 <0.1 3x2, 40 W 6.0 1.2 1.6 1.4 <0.1 <0.1 3x2, 60 W 7.6 1.9 1.6 1.4 <0.1 <0.1 3x1, 20 W, pol.div. 1.7 0.3 1.4 1.4 <0.1 <0.1 3x1, 40 W, pol.div. 3.7 0.6 1.5 1.4 <0.1 <0.1 3x1, 60 W, pol.div. 5.1 0.9 1.6 1.4 <0.1 <0.1 3x2, 40 W, pol.div. 6.0 1.2 1.6 1.4 <0.1 <0.1 3x2, 60 W, pol.div. 7.6 1.9 1.6 1.4 <0.1 <0.1

WCDMA 17/2100

3x1, 20 W 1.5 0.4 1.4 1.4 <0.1 <0.1 3x1, 60 W 5.1 0.9 1.6 1.4 <0.1 <0.1

3x1, 80 W 6.1 1.3 1.6 1.4 <0.1 <0.1

WCDMA 2100

3x1, 20 W 1.5 0.4 1.4 1.4 <0.1 <0.1 3x1, 40 W 3.4 0.6 1.5 1.4 <0.1 <0.1 3x1, 60 W 5.1 0.9 1.6 1.4 <0.1 <0.1

3x1, 80 W 6.1 1.3 1.6 1.4 <0.1 <0.1 3x2, 40 W 6.1 1.3 1.6 1.4 <0.1 <0.1 3x2, 60 W 7.8 2.0 1.7 1.4 <0.1 <0.1 3x1, 20 W, pol.div. 1.5 0.4 1.4 1.4 <0.1 <0.1 3x1, 40 W, pol.div. 3.4 0.6 1.5 1.4 <0.1 <0.1 3x1, 60 W, pol.div. 5.1 0.9 1.6 1.4 <0.1 <0.1 3x2, 40 W, pol.div. 6.1 1.3 1.6 1.4 <0.1 <0.1 3x2, 60 W, pol.div. 7.8 2.0 1.7 1.4 <0.1 <0.1

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Note: Table A2 shows examples for specified typical antennas. As the antenna field distributions will differ, complete calculations or measurements may be necessary to establish the compliance boundary for other configurations chosen by the customer. For further information on calculation methods, see: Radio Frequency Electromagnetic Fields, 124 46-EN/LZT 720 0399.

Note: The expanded uncertainty (k=2) is ±2.3 dB for the underlying calculations of the power density used for assessment of the compliance boundary dimensions listed in Table A2.

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Characteristics of the antennas recommended for typical RBS 6102, RBS 6201, RBS 6101, RBS 6202 and RBS 6131 configurations are listed in Table A4.

Table A4 Characteristics for the Typical Antennas (band I and band IV, band XI5, band V and band VIII) of RBS 6102, RBS 6201, RBS 6101, RBS 6202, and RBS 6131.

Characteristics of the antennas recommended for typical RBS 6601 and RBS 6301 configurations are listed in Table A5.

Table A5 Characteristics for the Typical Antennas of RBS 6601 and RBS 6301.

5 1500 MHz (band XI) is not yet released for RBS 6101/6202 (only released for RBS 6102/6201).

Antenna specifications

X-pol macro RBS directional antenna (KRE 101 1985/1)

X-pol macro RBS directional antenna


Antenna dimensions Height: 1.3 m Height: 1.36 m Height: 1.30 m

Half-power beam width 64 degrees 67 degrees 67, 65 degrees

Antenna gain 18 dBi 18 dBi 14.7, 15 dBi

Down tilt 0 degrees 0 degrees 0 degrees

Antenna specifications X-pol macro RBS directional antenna (KRE 101 2021/1)




Antenna dimensions Height: 1.3 m Height: 2.3 m Height: 1.3 m Height: 1.3 m

Half-power beam width 67 degrees 33 degrees 64 degrees 33 degrees

Antenna gain 15 dBi 20 dBi 18 dBi 21 dBi

Down tilt 0 degrees 0 degrees 0 degrees 0 degrees

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The total power fed to the antenna (including tolerances and transmission loss) for the RBS 6102, RBS 6201, RBS 6101, RBS 6202 and RBS 6131 is given in Table A6.

Table A6 Total Power to the Antenna for Typical RBS 6102, RBS 6201, RBS 6101, RBS 6202 and RBS 6131 configurations.

Mode RBS configuration Nominal output power per carrier or per 20 MHz (dBm)

Nominal output power per sector (dBm)

Total power delivered to antenna6 (dBm/W)

WCDMA 850

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 100 W 50 50 47.6 / 57.5

WCDMA 900

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 100 W 50 50 47.6 / 57.5

WCDMA 15007

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 40 W 46.0 46.0 43.6 / 22.9

WCDMA 1800

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 100 W 50 50 47.6 / 57.5

WCDMA 1900

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 100 W 50 50 47.6 / 57.5

WCDMA 2100

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 100 W 50 50 47.6 / 57.5

WCDMA 17/2100

3x2, 30 W 44.8 47.8 45.4 / 34.7

3x1, 80 W 49 49 46.6 / 45.7

6 The total power delivered to the antenna includes a tolerance level of 0.6 dB and transmission losses of 3 dB. 7 1500 MHz is not yet released for RBS 6101/6202 (only released for RBS 6102/6201).

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The total power fed to the antenna (including tolerances and transmission loss) for the RBS 6601 and RBS 6301, is given in Table A7.

Table A7 Total Power to the Antenna for Typical RBS 6601 and RBS 6301 configurations.

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Mode RBS configuration Nominal output power per carrier (dBm)

Nominal output power per sector (dBm)

Total power delivered to antenna8,9 (dBm/W)

WCDMA 850

3x1, 20 W 43.0 43.0 43.1 / 20.4 3x1, 40 W 46.0 46.0 46.1 / 40.7 3x1, 60 W 47.8 47.8 47.9 / 61.7 3x1, 80 W 49.0 49.0 49.1 / 81.3 3x2, 40 W 46.0 49.0 49.1 / 81.3 3x2, 60 W 47.8 50.8 50.9 / 123.0 3x1, 20 W, pol.div. 43.0 43.0 43.1 / 20.4 3x1, 40 W, pol.div. 46.0 46.0 46.1 / 40.7 3x1, 60 W, pol.div. 47.8 47.8 47.9 / 61.7 3x2, 40 W, pol.div. 46.0 49.0 49.1 / 81.3 3x2, 60 W, pol.div. 47.8 50.8 50.9 / 123.0

WCDMA 900

3x1, 20 W 43.0 43.0 43.1 / 20.4 3x1, 60 W 47.8 47.8 47.9 / 61. 7 3x1, 80 W 49.0 49.0 49.1 / 81.3

WCDMA 1800

3x1, 20 W 43.0 43.0 43.1 / 20.4 3x1, 60 W 47.8 47.8 47.9 / 61.7 3x1, 80 W 49.0 49.0 49.1 / 81.3

WCDMA 1900


WCDMA 2100


8 The total power delivered to the antenna includes a tolerance level of 0.6 dB, and transmission losses of 0.5 dB. 9 For the configurations with polarization diversity, each polarization receives half the specified power.

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References

[1.] EAB-08:042419 Uen, EMF Test Report: RBS 6102 RBS 6201 RBS 6131

[2.] EAB-10:012617 Uen, EMF Test Report: RBS 6101 RBS 6202

[3.] EAB-10:022038 Uen, EMF Test Report: RBS 6601 RBS 6301

[4.] ICNIRP, “Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)”, International Commission on Non-Ionizing Radiation Protection (ICNIRP), Health Physics, vol. 74, pp 494-522, April 1998.

[5.] FCC, Code of Federal Regulations CFR title 47, part 1.1310 “Radiofrequency radiation exposure limits”, Federal Communications Commission (FCC), August 1997.

[6.] Radio Frequency Electromagnetic Fields, 124 46-EN/LZT 720 0399

radio frequency exposure

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