Test Report for Phone Kiosk Mobile Site · PDF fileTest Report for Phone Kiosk Mobile Site...

Test Report for

Phone Kiosk Mobile Site Trial

Document Ref : LTR-001

Page 1 of 61

Test Report

for


Document Code: LTR-001

Version: 1.2

Date: 17 Oct 2016

© 2016 PCCW Limited. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of PCCW Limited. PCCW Limited may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from PCCW, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property.

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Revision History

Revision

Date

Previous

revision

date

Summary of Changes Changes marked

28 Sep 2016 First issue

14 Oct 2016 Result in table format

added to Annex 1, Test

result of #4 & #5, P. 31-34

Coverage sizes were

added to Chapter 3, P.

10-13 and Annex 1, Test

Case #1, P.19-22

Typo removed in Annex

2.2, P. 50

17Oct 2016 Copyright & Intellectual

Property Declaration on the

front cover was updated

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Executive Summary

Having the highest smartphone penetration in Asia Pacific, Hong Kong had been

continuing to see exponential growth in wireless data usage driven by smartphone,

tablet, and even machine. This does not only demand comprehensive mobile

coverage, but also mobile network capacity especially for data.

http://www.mediaresearchasia.com/view.php?type=press&id=3184

In order to cope with the public needs in wireless data access, beyond Marco and

Micro site, Hotspot type of wireless data access has been proposed to fulfill the public

needs. In this trial, small cell wireless data access was tested in public phone kiosk as

a form of – Mobile Hotspot.

In the trial, 4 phone kiosks were involved. It was observed that all 4 trial Phone Kiosk

Mobile Sites exhibited capability of delivering coverage as planned, i.e. the dominated

coverage area was able to cover the expected traffic hot spots or weak coverage area.

Three of the trial phone kiosk locations were chosen targeting to serve as Mobile

Hotspot to absorb nearby high density traffic, and hence to offload traffic originally

carried in Macro site. It was observed significant traffic was carried by the trial sites,

letting Macro-sites to have more room for other traffic with higher mobility.

One remote phone kiosk locating in a weak mobile coverage location was selected in

this trial as well, in order to verify coverage hole filling capability.

3GPP standard also considers Mobile Hotspot as a key network hierarchy along

network evolution road map. There are Mobile Hotspot related feature / mechanism

specified in the standard. Together with these features / mechanism, Mobile Hotspot

will be even more capable and powerful for enhancing call continuity, capacity,

throughput, and as well VoLTE voice quality, as a whole providing improved customer

experience under the same frequency spectrum, facilitating more efficient use of

scarce resource.

All functional tests were carried out successfully at each of the 4 live trial sites. All

result matched with the expected result for the 4 trail sites with reference to the test

plan “Test Plan for Phone Kiosk Mobile Site Live Trial Code: LTP-001 Version: 1.3”.

http://www.mediaresearchasia.com/view.php?type=press&id=3184

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As wireless equipment installed in public area (phone kiosk) may give rise to public

concern about radiofrequency (RF) non-ionizing radiation, an international reference

is taken from World Health Organization (WHO). From WHO, the exposure levels due

to wireless networks (Mobile, Wi-Fi) are generally very low, and there shows no

convincing scientific evidence that the weak RF signals from wireless networks cause

adverse health effects. For further details, they can be found in the web-site of WHO

at http://www.who.int/peh-emf/publications/facts/fs304/en/.

According to the measurements taken at these 4 trial sites, the aggregated RF

exposure levels from the mobile + Wi-Fi hotspot are well below the limits as

recommended in the International Commission on Non-Ionizing Radiation Protection

(ICNIRP) Exposure Guidelines, which has been adopted in Hong Kong for protection

of workers and the public. (Site WCCPM: 3%~11% of the limit, site CWSPD:

11%~18% of the limit, site MKHAS: 12%~49% of the limit, and site WCSYS: 9%~40%

of the limit)

According to the result of this live trial of Phone Kiosk Mobile Site, it is concluded that

all functional tests were successful, the non-ionizing radiation generated by the trial

sites were well below the limit. In addition, further improvement can be made in

terms of call continuity, capacity & throughput, and as well VoLTE voice quality with

deployment of Mobile Hotspot. It is recommended that Phone Kiosk Mobile Site can

be considered as one of the solution in Hong Kong of providing voice and mobile

broadband data connection to public mobile users.

http://www.who.int/peh-emf/publications/facts/fs304/en/

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Table of Content

1. The Wireless Technologies ............................................................................................................. 6

2. Traffic Hotspot Solution and Coverage Solution for Remote Area ................................................. 7

3. Observations/Study from the 4x Trial Phone Kiosk Mobile Sites ................................................... 9

4. Functional Test ............................................................................................................................. 18

Annex 1 – Functional Test Result of 4 trail sites ................................................................................... 19

Annex 2 – NIR Requirement, Measurement, and Result ...................................................................... 48

Annex 2.1 NIR Requirement & Public Health Concerns ............................................................... 48

Annex 2.2 NIR Exposure Limits .................................................................................................... 50

Annex 2.3 Measurement Methodology of NIR .............................................................................. 51

Annex 3 - Results of NIR Measurements .............................................................................................. 54

Annex 3.1 Results of NIR Measurements at 1.7m for 4 trial sites ................................................ 54

Annex 3.2 Supplementary Results of NIR Measurements at 2m height for 4 trial sites ............... 58

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1. The Wireless Technologies

WCDMA & LTE

WCDMA (at 2100 MHz) refers to the 3GPP group of standards operating in the 2.1

GHz band where LTE (at 1800 MHz) refers to the 3GPP group of standards operating

in the 1.8 GHz band. These are wireless access technology for provision of voice +

data and data access respectively, which uses radio frequencies for linking up user

equipment (e.g. tablet, mobile phone, smartphone, computers, PDA, etc) and the

mobile broadband network for Internet access.

In this Phone Kiosk Mobile Site Live Trial report, network equipment called Small Cell

is providing the WCDMA and LTE air interfaces between the mobile broadband

network and the user equipment. It is a radio transceiver itself where the user terminal

equipment should have built-in capability for communications with the Small Cells.

Wi-Fi

Since there could be Wi-Fi AP installed in a live phone kiosk in some cases, these 4

phone kiosks were selected with Wi-Fi AP already installed for the overall NIR

measurement.

Wi-Fi refers to the IEEE 802.11 group of standards operating in the 2.4 GHz and 5

GHz bands. It is a wireless access technology for provision of broadband wireless

access, which uses radio frequencies for linking up user terminal equipment (e.g.

computers, mobile phone, smartphone, etc.) and the broadband network for Internet

access.

In this Phone Kiosk Mobile Site Live Trial setup, network equipment called Wi-Fi

Access Point (AP) is providing the Wi-Fi air interface between the broadband network

and the user equipment. It is a radio transceiver itself where the user equipment

should have built-in Wi-Fi device for communications with the APs.

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2. Traffic Hotspot Solution and Coverage

Solution for Remote Area

Wi-Fi Access Points become popular nowadays to general public due to the high

demand of internet access through person mobile devices. Wi-Fi Access Point

consists of hardware devices with transmission used to provide a wireless network

service. Other than Wi-Fi Access Points provided by Telecom Carriers, there has

been an increasing trend of Private Access Points in home or office by general public

or business owner. (E.g. Wi-Fi Router, small scale Wi-Fi network with Wireless APs in

office). These Private Access Points also provide internet access to mobile devices

(such as a smartphone, tablet, Notebook) in a more private means.

In Wireless Communication, there exists another type of data access points, which we

can call it Mobile Hotspot in this report. It is a small & compact size, low power mobile

base station for broadband Internet access of mobile devices. This kind of device is

capable of installing at outdoor environment for critical weather condition wherever

applicable.

In this document, we will look into the Mobile Hotspot and see how it can help to

improve the data connections for the general public.

Capacity Solution for high density traffic spots – Mobile Hotspot

The Mobile Hotspot provides additional radio capacity for high density traffic spots in

City, public event, and so on. It can help to provide congestion free voice and data

services to general public in such dense traffic spots. In practice, there are different

ways to approach this dense traffic absorption solution, e.g. mount the compact on

lamp poles, telephone poles, phone kiosks, foot bridges, etc. In this document, we

discuss and test the approach of Mobile Hotspot at phone kiosk.

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Coverage Solution for Remote Area

Despite the use as Capacity Solution for high density traffic spots, it can serve as a

Coverage solution for some remote area. In reality, there exists locations where no

premises are available or none of the nearby premises are allowed to build base

station but general public may regularly pass this location or somehow stay at this

location. As expected, general public will experience very weak or even no mobile

coverage.

In case phone kiosk is available at this location, mobile coverage will have a chance to

be enhanced there even with the limitation and difficulty encountered at such location.

With minimal & quick installation, mobile coverage can be enhanced with the

advanced, small size mobile base station unit.

As Hong Kong has becoming a more intelligent city, mobile data access plays a key

role of this evolution, and this Mobile Hotspot solution can further improve the services

to general public and cope with the pace to be a mature intelligent city. The

advantage of this solution is to make use of existing facility and have minimal

installation for a quick mobile coverage improvement. It is a highly recommended

mobile coverage solution to our city.

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3. Observations/Study from the 4x Trial Phone

Kiosk Mobile Sites

General Coverage & Capacity point of view

4 locations were chosen for Live trial where:

1x location is for coverage needs at remote area.

3x locations are for dense traffic needs

The locations are as follow:

Location 1 (Coverage):

Junction of Peak Road and Coombe Road, Wan Chai (WCCPM)

Location 2 (Dense traffic needs):

Status Square (near Prince’s Building), Central (CWSPD)


Argyle Street (near MTR Exit C), Mong Kok (MKHAS)


Junction of Sugar Street and Yee Woo Street, Causeway Bay (WCSYS)

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The expected coverage areas are as follow:

Expected Coverage - WCCPM

Actual Dominated Coverage area plot of WCCPM with highlights on the dominated

area Matched with expected coverage above (~40m (W) X 50m (L))

Please refer to Annex 1, Test Case #1 for coverage plots.

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Expected Coverage - CWSPD

Actual Dominated Coverage area plot of CWSPD with highlights on the dominated



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Expected Coverage - MKHAS

Actual Dominated Coverage area plot of MKHAS with highlights on the dominated



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Expected Coverage - WCSYS

Actual Dominated Coverage area plot of WCSYS with highlights on the dominated

area Matched with expected coverage above (~15m (W) x 30m (L))


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Conclusion:

Actual coverage of all 4 trial sites match with our design

For the 1x remote coverage enhancement site, coverage was significantly improved

at the weak area for public users.

For the 3x dense traffic sites, publics can enjoy congest free data and voice

services as mobile usages were generate in these sites dominated coverage are

rather than the surrounding Macro-sites instead.

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Further Enhancement on Customer Experience with upcoming

technology

Further Mobility Improvement for better data experience

With new feature in the new network software release, Mobile Hotspot deployment not

only able to absorb traffic in dense spot by physical means, but also able to

automatically adjusted the cell edges with Macro-sites so that handset will be smartly

led to the better cell for providing best data experience to the public.

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Further Capacity Improvement for faster data experience

With new feature in the new network software release, Mobile Hotspot can be

equipped with Carrier Aggregation technology with surrounding Macro-sites to provide

faster data throughput in its dominated coverage area.

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Uplink Quality Improvement

With new feature in the new network software release, voice uplink quality (VoLTE)

can be further improved at the coverage overlapping area between Mobile Hotspot

and Macro-cell. Not only data capacity and throughput improvement, but also voice

quality improvement will be enjoyed by the public users.

UL VOLTE quality assurance can be achieved by UL Comp solution

Conclusion:

The deployment of Mobile Hotspot will introduce further enhancement of both data

& voice experience at the related area.

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4. Functional Test

All functional tests have expected result for the 4 trail sites with reference to the test

plan “Test Plan for Phone Kiosk Mobile Site Live Trial Code: LTP-001 Version: 1.3”.

The following items were all tested successfully at each of the 4 live trail sites. The

detail result can be referred to “Annex 1 – Functional Test Result of 4 trial sites”.

1. Coverage

2. VoLTE call

3. Voice call

4. Data service test in 4G

5. Data service test in 3G

6. 4G handover to/from surrounding live cells - voice service

7. 3G handover to/from surrounding live cells - voice service

8. 4G handover to/from surrounding live cells - data service

9. 3G handover to/from surrounding live cells - data service

10. Stability

11. Durability

12. Invulnerability

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Annex 1 – Functional Test Result of 4 trail sites

Test Case #1 – Coverage

Expected Coverage - WCCPM

Actual Dominated Coverage area plot of WCCPM with highlights on the dominated

area (Test case #1) Matched with expected coverage above (~40m (W) X 50m (L))

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Expected Coverage - CWSPD

Actual Dominated Coverage area plot of CWSPD with highlights on the dominated


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Expected Coverage - MKHAS

Actual Dominated Coverage area plot of MKHAS with highlights on the dominated


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Expected Coverage - WCSYS

Actual Dominated Coverage area plot of WCSYS with highlights on the dominated

area (Test case #1) Matched with expected coverage above (~15m (W) x 30m (L))

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Test Case #2 - VoLTE Call

Serving Cell: WCCPM (CI 42)

Outgoing Call Incoming Call Call Drop Call setup Failure

1 N N

2 N N

3 N N

4 N N

5 N N

Volte CallTest Round

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Serving Cell: CWSPD (CI 95)


1 N N

2 N N

3 N N

4 N N

5 N N


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Serving Cell: MKHAS (CI 318)


1 N N

2 N N

3 N N

4 N N

5 N N


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Serving Cell: WCSYS (CI 484)


1 N N

2 N N

3 N N

4 N N

5 N N


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Test case #3 - Voice call result

Serving Cell: WCCPMU1


1 N N

2 N N

3 N N

4 N N

5 N N

Test RoundVoice Call

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Serving Cell: CWSPDU1


1 N N

2 N N

3 N N

4 N N

5 N N


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Serving Cell: MKHASU1


1 N N

2 N N

3 N N

4 N N

5 N N


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Serving Cell: WCSYS


1 N N

2 N N

3 N N

4 N N

5 N N


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Test Case #4 and # 5 - Measurement Results for Data service test in

4G & 3G

WCCPM – Test #5 Data Service Test in 3G WCCPM – Test #4 Data Service Test in 4G

WCCPM

3G

DL

(Mbps)

UL

(Mbps)Latency

WCCPM

3G

DL

(Mbps)

UL

(Mbps)Latency

WCCPM

4G

DL

(Mbps)

UL

(Mbps)Latency

WCCPM

4G

DL

(Mbps)

UL

(Mbps)Latency

1 15.60 4.76 36 1 16.20 5.47 36 1 139.00 31.20 23 1 138.00 29.70 24

2 15.80 5.04 46 2 16.30 5.28 43 2 141.00 33.20 22 2 140.00 31.70 23

3 15.50 4.09 45 3 16.10 5.16 40 3 138.00 32.30 22 3 140.00 30.10 23

4 15.60 4.51 45 4 15.90 4.57 38 4 135.00 30.40 22 4 138.00 30.30 23

5 15.90 4.63 43 5 15.40 4.56 29 5 138.00 32.00 22 5 139.00 31.70 23

All 5 rounds were tested successfully

DL UL Latency

1

2

3

4

5

Test RoundOFCA test

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CWSPD – Test #5 Data Service Test in 3G CWSPD – Test #4 Data Service Test in 4G

CWSPD

3G

DL

(Mbps)

UL

(Mbps)Latency

CWSPD

3G

DL

(Mbps)

UL

(Mbps)Latency

CWSPD

4G

DL

(Mbps)

UL

(Mbps)Latency

CWSPD

4G

DL

(Mbps)

UL

(Mbps)Latency

1 9.49 4.62 39 1 11.00 4.58 37 1 39.20 34.70 22 1 40.30 34.70 22

2 9.43 3.97 37 2 11.40 4.44 38 2 36.70 34.00 23 2 38.90 33.40 23

3 12.30 4.54 42 3 11.20 4.52 38 3 34.20 31.70 23 3 45.40 29.30 25

4 8.31 4.69 48 4 11.70 4.79 39 4 40.00 31.20 23 4 38.90 38.50 23

5 10.70 4.62 46 5 11.60 4.69 37 5 39.00 30.20 22 5 45.40 23.70 26


DL UL Latency

1

2

3

4

5

Test RoundOFCA test

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MKHAS – Test #5 Data Service Test in 3G MKHAS – Test #4 Data Service Test in 4G

MKHAS

3G

DL

(Mbps)

UL

(Mbps)Latency

MKHAS

3G

DL

(Mbps)

UL

(Mbps)Latency

MKHAS

4G

DL

(Mbps)

UL

(Mbps)Latency

MKHAS

4G

DL

(Mbps)

UL

(Mbps)Latency

1 5.71 4.23 47 1 7.52 4.10 36 1 51.90 31.60 29 1 36.40 29.90 29

2 7.68 4.60 41 2 6.66 4.56 44 2 53.30 29.70 28 2 36.70 31.10 31

3 6.57 4.62 44 3 9.37 4.61 41 3 39.20 30.30 31 3 54.20 29.80 31

4 7.78 2.50 69 4 10.40 4.23 27 4 45.50 30.50 30 4 46.80 31.40 29

5 5.72 4.61 46 5 8.99 4.58 47 5 48.30 34.70 29 5 36.00 32.90 30


DL UL Latency

1

2

3

4

5

Test RoundOFCA test

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WCSYS – Test #5 Data Service Test in 3G WCSYS– Test #4 Data Service Test in 4G

WCSYS

3G

DL

(Mbps)

UL

(Mbps)Latency

WCSYS

3G

DL

(Mbps)

UL

(Mbps)Latency

WCSYS

4G

DL

(Mbps)

UL

(Mbps)Latency

WCSYS

4G

DL

(Mbps)

UL

(Mbps)Latency

1 21.00 5.40 36 1 27.80 4.57 37 1 77.90 35.60 24 1 118.00 33.60 25

2 18.90 4.83 40 2 27.60 4.68 40 2 76.70 34.80 28 2 126.00 34.80 24

3 18.30 5.11 43 3 25.10 4.57 51 3 95.10 33.30 31 3 104.00 35.80 33

4 20.30 5.07 40 4 26.60 4.63 37 4 80.90 30.60 28 4 102.00 35.60 24

5 18.70 4.81 38 5 27.40 4.63 33 5 70.00 35.50 23 5 101.00 24.50 27


DL UL Latency

1

2

3

4

5

Test RoundOFCA test

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WCCPM – Test #5 Data Service Test in 3G WCCPM – Test #4 Data Service Test in 4G

Send Received

1

2

3

4

5

Test RoundWhatsApp

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CWSPD – Test #5 Data Service Test in 3G CWSPD – Test #4 Data Service Test in 4G

Send Received

1

2

3

4

5

Test RoundWhatsApp

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MKHAS – Test #5 Data Service Test in 3G MKHAS – Test #4 Data Service Test in 4G

Send Received

1

2

3

4

5

Test RoundWhatsApp

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WCSYS – Test #5 Data Service Test in 3G WCSYS– Test #4 Data Service Test in 4G

Send Received

1

2

3

4

5

Test RoundWhatsApp

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Test case #6 and #7 - Measurement Results for 3G & 4G handover

to/from surrounding live cells - voice service

Serving Cell: WCCPM (CI 78) Serving Cell: WCCPM(CI 42)

Test

Round

Volte HO Voice HO

Outgoing

Call

Incoming

Call

Outgoing

Call Incoming Call

1

2

3

4

5

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Serving Cell: CWSPD (CI 163) Serving Cell: CWSPD (CI 95)

Test

Round

Volte HO Voice HO

Outgoing

Call

Incoming

Call

Outgoing

Call Incoming Call

1

2

3

4

5

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Serving Cell: MKHAS (CI 306) Serving Cell: MKHAS (CI 318)

Test

Round

Volte HO Voice HO

Outgoing

Call

Incoming

Call

Outgoing

Call Incoming Call

1

2

3

4

5

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Serving Cell: WCSYS (CI 288) Serving Cell: WCSYS (CI 484)

Test

Round

Volte HO Voice HO

Outgoing

Call

Incoming

Call

Outgoing

Call Incoming Call

1

2

3

4

5

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Test #8 and #9 - Measurement Results for 3G & 4G handover to/from

surrounding live cells - data service

Serving Cell: WCCPM(CI 78) Serving Cell: WCCPM(CI 42)

Test Round3G Data HO 4G Data HO

Outgoing Call Incoming Call Outgoing Call Incoming Call

1

2

3

4

5

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Serving Cell: CWSPD (CI 163) Serving Cell: CWSPD (CI 95)



1

2

3

4

5

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Serving Cell: MKHAS (CI 306) Serving Cell: MKHAS (CI 318)



1

2

3

4

5

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Serving Cell: WCSYS (CI 288) Serving Cell: WCSYS (CI 484)



1

2

3

4

5

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Test #10 –Stability

No any critical equipment alarms for all 4 trial sites as follow:

WCCPM

CWSPD

MKHAS

WCSYS

Test #11 –Durability

No severe service outages found in the trial period for all 4 trial sites as follow:

WCCPM

CWSPD

MKHAS

WCSYS

Test #12 –Invulnerability

No breakdown / destruction / disruption of the installed equipment / setup by third

parties for all trial sites as follow:

WCCPM

CWSPD

MKHAS

WCSYS

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Annex 2 – NIR Requirement, Measurement, and

Result

Annex 2.1 NIR Requirement & Public Health Concerns

Public Health Concerns

Unlike the high energy ionizing radiation (e.g. X-rays, Gamma rays), the

electromagnetic radiation generated by RF transmitters, (e.g. Wi-Fi, Mobile equipment)

is classified as non-ionization radiation (NIR). The energy of NIR is much lower, and it

is associated with all sorts of objects in our daily life (such as computers and cordless

phones). See charts below for classification of (EM) electromagnetic radiation reference from OFCA

and United States Department of Labor.

According to the World Health Organization’s (WHO) studies over the past 15 years,

there have shown no evidence that RF exposure from the transmitters increases the

risk of cancer. From the studies, the exposure levels due to wireless networks

(including Wi-Fi, mobile) are generally very low, and there is no convincing scientific

evidence that the weak RF signals from wireless networks cause adverse health

effects. Relevant information can be found in the web-site of WHO at:

http://www.who.int/mediacentre/factsheets/fs304/en/index.html

Source: TUCAC Paper No. 03/2013, Radiation Safety of Mobile Phone Radio Base Stations, Office of

http://www.who.int/mediacentre/factsheets/fs304/en/index.html

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the Communications Authority:

http://www.ofca.gov.hk/filemanager/ofca/en/content_761/tucac_paper2013-03.pdf

Source: Occupational Safety & Health Administration, United States Department of Labor:

https://www.osha.gov/SLTC/radiation/

NIR Limits

As a safety precaution for the workers and public health, PCCW-HKT has well been

following the Code of Practice issued by OFCA in 2000 - “Code of Practice for the

Protection of Workers and Members of Public Against Non-Ionizing Radiation Hazards

from Radio Transmitting Equipment”. In this CoP, the International Commission on

Non-Ionzing Radiation Protection Guidelines (the “ICNIRP guidelines”) published in

1998 is adopted.

http://tel_archives.ofca.gov.hk/en/code/practice/cop-radiation-hazards.pdf

Please refer to Annex 2.2 for NIR limits.

http://www.ofca.gov.hk/filemanager/ofca/en/content_751/ssac_paper_8_2012.pdf



https://www.osha.gov/SLTC/radiation/


http://www.ofca.gov.hk/filemanager/ofca/en/content_751/ssac_paper_8_2012.pdf


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Annex 2.2 NIR Exposure Limits

Regarding Non-Ionizing Radiation, HKT has well been following the Code of Practice

issued by OFCA in 2000 - “Code of Practice for the Protection of Workers and

Members of Public Against Non-Ionizing Radiation Hazards from Radio Transmitting

Equipment”. In this CoP, the International Commission on Non-Ionizing Radiation

Protection Guidelines (the “ICNIRP guidelines”) published in 1998 is adopted.


In this report, the maximum NIR levels for the involved frequency ranges are:

Reference levels for general public exposure in the frequency range 0.4-2GHz to

time varying electric and magnetic fields (unperturbed rms values).

Calculated for the LTE frequency applied (PCCW-HKT: 1870MHz):

Class of

Personnel

E-field strength

(V/m)

H-field strength

(A/m)

Equivalent plan

wave power

density Seq

(W/m2)

General public 59.5 0.16 9

Reference levels for general public exposure in the frequency range 2-300GHz to

time varying electric and magnetic fields (unperturbed rms values)

Both WCDMA 2100 & Wi-Fi 2.4G apply:

Class of

Personnel

E-field strength

(V/m)

H-field strength

(A/m)

Equivalent plan

wave power

density Seq (W/m2)

General public 61 0.16 10

In this report, the lower value 59.5 V/m are used for the aggregated NIR limit.


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Annex 2.3 Measurement Methodology of NIR

Measurement Equipment

NIR levels from both Mobile & Wi-Fi equipment are measured using a professional

radiation meter. The type of test equipment is capable of taking precise measurement

of aggregated NIR levels contributed from different radio transmitters.

The model of the NIR meter for the measurements as presented in this report is

EMR-300 from narda Safety Test Solutions® . It provides direct readout of the required

6-minute average NIR levels as required by the ICNIRP Guidelines

Measurement Arrangement

The NIR measurement is carried out with the following procedures:

a. At the phone kiosk equipped with mobile & Wi-Fi equipment, the NIR meter is

moved around in the local area to locate the maximum receivable signal

strength. The first measurement will be taken at that position.

b. The NIR meter is then fixed on a tripod at a height of 1.7m (corresponds to

the head position of an average adult) for 6-minute continuous

measurement.

c. For measurement points 1-8, the probe should be located at 0.2m from the

vertical surface of the phone kiosk. For measurement point 9, the probe

should be located inside and in the middle of the phone kiosk

d. The NIR level averaged in the 6-minute interval directly read out from the

meter is recorded.

e. Further readings are measured around the phone kiosk & inside the phone

kiosk. Eight more sampling points will be taken by repeating the step (b) to

(d).

f. The NIR levels for the different measurements in (e) will be presented in a

summary (see in Annex 3.1).

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Supplementary measurement arrangement

In order to further clear the doubts of general public, supplementary measurements

were also carried out around the phone kiosk at a height of 2.0m which corresponds

to the height of the phone kiosk. This height is at the same height as the

transmitting equipment and it is generally unreachable by general public. Again,

measurement results were derived on the basis of a continued sampling of the RF

signals for 6 minutes in duration.

The NIR measurement is carried out with the following procedures:

a. At the phone kiosk equipped with mobile & Wi-Fi equipment, the NIR meter is

moved around in the local area to locate the maximum receivable signal

strength. The first measurement will be taken at that position.

b. The NIR meter is then fixed on a tripod at a height of 2.0m (corresponds to

the height of the phone kiosk which is generally unreachable by general

public) for 6-minute continuous measurement.

c. For measurement points 1-8, the probe should be located at 0.2m from the

vertical surface of the phone kiosk. For measurement point 9, the probe

should be located inside and in the middle of the phone kiosk

Entr

anc

e

Test Report for



Page 53 of 61

d. The NIR level averaged in the 6-minute interval directly read out from the

meter is recorded.

e. Further readings are measured around the phone kiosk and inside the kiosk.

Eight more sampling points will be taken by repeating the step (b) to (d)

above.

f. The NIR levels for the different measurements in (e) will be presented in a

summary (see in Annex 3.2).

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Page 54 of 61

Annex 3 - Results of NIR Measurements

Annex 3.1 Results of NIR Measurements at 1.7m for 4 trial

sites

Result of NIR Measurement for WCCPM

NIR measured at 1.7m height:

Test point # (1.7m height) NIR Level (V/m)

1 3.25

2 6.51

3 3.75

4 4.25

5 5.78

6 3.13

7 2.23

8 1.87

9 5.89

Note:

The NIR levels in the table(s) above are not coverage performance of the mobile & Wi-Fi coverage

because the measurements were made in proximity to the transmitting AP & antennas.

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Results of NIR Measurements for CWSPD



1 8.5

2 10.88

3 7

4 6

5 6.3

6 8

7 11

8 8.4

9 9

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Results of NIR Measurements for MKHAS



1 29.7

2 20.6

3 19.3

4 10.7

5 8.8

6 7.2

7 9.8

8 10.7

9 10.6

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Results of NIR Measurements for WCSYS



1 5.5

2 13

3 24

4 19

5 14.5

6 12

7 9

8 10

9 11

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Annex 3.2 Supplementary Results of NIR Measurements at

2m height for 4 trial sites

Results of NIR Measurements for WCCPM

NIR measured at 2m height:

Test point # (2m height) NIR Level (V/m)

1 7.48

2 24.09

3 8.63

4 9.78

5 21.39

6 7.20

7 5.13

8 4.30

9 21.79

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Results of NIR Measurements for CWSPD



1 17.85

2 38.25

3 14.7

4 12.6

5 13.23

6 18.4

7 36.7

8 17.64

9 18.9

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Results of NIR Measurements for MKHAS



1 42.31

2 38.38

3 31.39

4 24.61

5 20.24

6 16.56

7 22.54

8 24.61

9 24.38

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Result fo NIR Measurements for WCSYS



1 12.65

2 29.9

3 42.2

4 40.7

5 30.35

6 27.6

7 20.7

8 23

9 25.3

Date post:	31-Jan-2018
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