WLM200NX CE DFS Test Report 08B005S rpt

Report No.: 08B005S

DFS Test Report

Product Name ： WIRELESS-N NETWORK MINI PCI ADAPTER

Model No.

： IWAVEPORT WLM200NX

Applicant ：

Compex Systems Pte Ltd

Address ：

135 Joo Seng Road, #08-01 PM Industrial Building

Singapore 368363

Date of Receipt ： 2008/10/27

Report No.

： 08B005S

Issued Date

： 2009/1/21

Version

： V1.0

The test results relate only to the samples tested.

The test report shall not be reproduced except in full without the written approval of QuieTek Corporation.

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Report No.: 08B005S

Test Result for DFS

Issued Date : 2009/1/21

Report No.: 08B005S

Product Name : WIRELESS-N NETWORK MINI PCI ADAPTER

Applicant :

368363

Manufacturer :

Model No.

Trade Name

:

:

IWAVEPORT WLM200NX

COMPEX

Applicable Standard : ETSI EN 301 893 V1.4.1 (2007-07)

Test Result : Pass

Description for Test : None

Test Item

Dynamic Frequency Selection (DFS)

Test Result

Pass Fail

( Roy Wang / Manager ) (Rita Hsu / Engineer )

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Report No.: 08B005S

Dynamic Frequency Selection (DFS) Test

General Information

The UUT operates in the following bands:

1. 5250-5350 MHz

2. 5470-5725 MHz

The UUT is a Client Device that does not have radar detection capability, and ad-hoc

function. The highest gain antenna assembly utilized with the EUT has a maximum gain of 2 dBi in 5GHz frequency band. The 50-ohm Tx/Rx antenna port is connected to the test system to perform conducted tests. TPC is not required since the maximum EIRP is less than 500mW

(27dBm).

The UUT utilizes 802.11a/b/g/n IP based architecture. Two nominal channel bandwidth, 20 MHz and 40MHz are implemented.

The master device is a Cisco Aironet 802.11a/g/n Access Point. The DFS software installed in the master device is Cisco IOS Releases 12.3(11) JA.

The test set-up is using Set-up B which UUT is a RLAN device operating in slave mode without

Radar Interference Detection function.

The UUT is a client device without radar detection, therefore the interference threshold level is not required.

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Report No.: 08B005S

Test Equipment

Dynamic Frequency Selection (DFS) / SR-7

Instrument

Spectrum Analyzer

Manufacturer Type No. Serial No

Rohde & Schwarz FSP 100561

Vector Signal Generator Rohde & Schwarz SUM 200A 102168

Instrument Manufacturer Type No.

Splitter/Combiner (Qty: 2) Mini-Circuits

Splitter/Combiner (Qty: 2) Mini-Circuits

ZAPD-50W 4.2-6.0 GHz

ZA2PD-63-S+

ATT (Qty: 3)

Aironet Access Point

Laptop PC

RF Cable (Qty: 4)

Mini-Circuits

Cisco System

Dell

Schaffner

BW-S3W2 DC-18GHz

AP1252AG

M65

Software Manufacturer Function

IOS Releases 12.3(11) JA Cisco System DFS Software

K6 Pulse Sequencer

UTP Tool

Rohde & Schwarz Radar Signal Generation Software

UNICAST Package data generator

Cal. Date

Feb, 21, 2008

Feb, 08, 2008

Serial No

NN256400424

SN049200828

0025

FTX121090DP

28G9N1S

25494/6

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Report No.: 08B005S

Test Setup

Set-up A

Set-up A is a set-up whereby the UUT is a RLAN device operating in master mode. Radar test signals are injected into the UUT. This set-up also contains a RLAN device operating in slave mode which is associated with the UUT.

Set-up B

Set-up B is a set-up whereby the UUT is a RLAN device operating in slave mode, with or without Radar Interference Detection function. This set-up also contains a RLAN device operating in master mode. The radar test signals are injected into the master device. The

UUT (slave device) is associated with the master device.

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Report No.: 08B005S

Set-up C

The UUT is a RLAN device operating in slave mode with Radar Interference Detection function. Radar test signals are injected into the slave device. This set-up also contains a

RLAN device operating in master mode. The UUT (slave device) is associated with the master device.

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Full DFS Test Set-up Photo

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DFS Set-up Photo: Master and Spectrum Analyzer

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DFS Set-up Photo: Client and Radar Generator

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DFS technical requirements specifications

Following Table lists the DFS related essential requirements and their applicability for each of the operational modes. If the RLAN device is capable of operating in more than one operating mode then each operating mode shall be assessed separately.

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Channel Availability Check

The Channel Availability Check shall be performed during a continuous period in time

(Channel Availability Check Time) which shall not be less than the value defined in table D.1 of standard.

During the Channel Availability Check, the RLAN shall be capable of detecting any of the radar signals that fall within the range given by table D.4 of standard with a level above the

Interference Detection Threshold defined in tables D.2 and D.3 of standard.

The detection probability for a given radar signal shall be greater than the value defined in table D.4 of standard.

Available channels remain valid for a maximum period of 24 hours.

In-Service Monitoring

The In-Service Monitoring shall be used to continuously monitor an Operating Channel.

The In-Service Monitoring shall start immediately after the RLAN has started transmissions on an Operating Channel.

During the In-Service Monitoring, the RLAN shall be capable of detecting any of the radar signals that fall within the range given by table D.4 of standard with a level above the

Interference Detection Threshold defined in tables D.2 and D.3 of standard.

The detection probability for a given radar signal shall be greater than the value defined in table D.4 of standard.

Channel Shutdown

The Channel Shutdown process shall start immediately after a radar signal has been detected.

The Channel Move Time shall not exceed the limit defined in table D.1 of standard.

The Channel Closing Transmission Time shall not exceed the limit defined in table D.1 of standard.

Non-Occupancy Period

The Non-Occupancy Period shall not be less than the value defined in table D.1 of standard.

Uniform Spreading

The probability of selecting each of the usable channels shall be within 10 % of the theoretical probability. For “n” channels, the theoretical probability is 1/n.

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Report No.: 08B005S

Radar Waveform Calibration

The following equipment setup was used to calibrate the conducted radar waveform. A spectrum analyzer was used to establish the test signal level for each radar type. During this process there were no transmissions by either the master or client device. The spectrum analyzer was switched to the zero span (time domain) at the frequency of the radar waveform generator. Peak detection was utilized. The spectrum analyzer resolution bandwidth (RBW) and video bandwidth (VBW) were set to 1 MHz and 3 MHz.

The signal generator amplitude was set so that the power level measured at the spectrum analyzer was -62 dBm due to the interference threshold level is not required.

Conducted Calibration Setup

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Radar Type 1 Calibration Plot

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Test Procedure / Results

For Conducted measurement

For a UUT with antenna connector(s) and using dedicated external antenna(s), or for a UUT with integral antenna(s) but with a temporary antenna connector provided, conducted measurements shall be used.

The UUT shall be configured to operate at the highest transmitter output power setting.

If the UUT has a Radar Interference Detection function, the output power of the signal generator producing the radar test signals, shall (unless otherwise specified) provide a received signal power at the antenna connector of the UUT with a level equal to (Interference

Detection Threshold + G), see tables D.2 and D.3 of standard. Parameter G [dBi] corresponds to the gain of the antenna assembly stated by the manufacturer. If more then one antenna assembly is intended for this power setting, the gain of the antenna assembly with the lowest gain shall be used.

A channel shall be selected in accordance with clause 5.1.3 of standard. This channel is designated as Ch r

(channel occupied by radar). The UUT shall be configured to select Ch r

as the first Operating Channel.

Channel Availability Check

The clauses below define the procedure to verify the Channel Availability Check and the

Channel Availability Check Time (T ch_avail_check

) by ensuring that the UUT is capable of detecting radar pulses at the beginning and at the end of the Channel Availability Check

Time.

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Report No.: 08B005S

Tests with a radar burst at the beginning of the Channel Availability Check Time

The steps below define the procedure to verify the radar detection capability on the selected channel when a radar burst occurs at the beginning of the Channel Availability Check Time.

a) The signal generator and UUT are connected using Set-up A and the power of the UUT is switched off.

b) The UUT is powered on at T0. T1 denotes the instant when the UUT has completed its power-up sequence (T power_up

) and is ready to start the radar detection. The Channel

Availability Check is expected to commence on Ch r

at instant T1 and is expected to end no sooner than T1 and is expected to end no sooner than T1 + T ch_avail_check

unless radar is detected sooner.

NOTE: Additional verification may be needed to define T1 in case it is not exactly known or indicated by the UUT.

c) A radar burst is generated on Ch r

using radar test signal #1 defined in table D.4 of standard at a level of 10 dB above the level defined in standard. This single-burst radar test signal shall commence within 2 sec after time T1.

d) It shall be recorded if the radar test signal was detected.

e) A timing trace or description of the observed timing and behavior of the UUT shall be recorded.

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Tests with a radar burst at the end of the Channel Availability Check Time

The steps below define the procedure to verify the radar detection capability on the selected channel when a radar burst occurs at the end of the Channel Availability Check Time.

a) The signal generator and UUT are connected using Set-up A and the power of the UUT is switched of.

b) The UUT is powered up at T0.T1 denotes the instant when the UUT has completed its power-up sequence (T power_up

) and is ready to start the radar detection. The Channel

Availability Check is expected to commence on Ch r

at instant T1 and is expected to end no sooner than T1 + T ch_avail_check unless radar is detected sooner.

NOTE: Additional verification may be needed to define T1 in case it is not exactly known or indicated by the UUT.

c) A radar burst is generated on Ch r

Using radar test signal #1 defined in table D.4 at a level of 10 dB above the level defined in standard. This single-burst radar test signal shall commence towards the end of the minimum required Channel Availability Check Time but not before time T1 + T ch_avail_check

- 2 [sec].


e) A timing trace or description of the observed timing and behavior of the UUT shall be recorded.

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Report No.: 08B005S

Interference Detection Threshold (during the Channel Availability Check)

The different steps below define the procedure to verify the Interference Detection Threshold during the Channel Availability Check Time.

a) The signal generator and UUT are connected using Set-up A and the power of the UUT is switched off.

b) The UUT is powered on at T0.T1 denotes the instant when the UUT has completed its power-up sequence (T power_up

) and is ready to start the radar detection. The channel

Availability Check expected to commence on Ch r

at instant T1 and is expected to end no sooner than T1 + T ch_avail_check

unless radar is detected sooner.

Note: Additional verification may be needed to define T1 in case it is not exactly known or indicated by the UUT.

c) mA radar burst is generated on Chr using radar test signal #1 defined in table D.4 of standard. This single-burst radar signal shall commence at approximately 10 seconds after T1.


e) The step c) to d) shall be repeated at least 20 times in order to determine the detection probability for the selected radar test signal. The detection probability shall be compared with the limit specified the table D.4 of standard.

f) The steps c) to e) shall be repeated for each of the radar test signals defined in table D.4.

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Report No.: 08B005S

In-Service Monitoring

The steps below define the procedure to verify the In-Service Monitoring and the Interference

Detection Threshold during the In-Service Monitoring.

a) When the UUT is a master device, a slave device will be used that associates with the

UUT. The signal generator and the UUT are connected using Set-up A.

When the UUT is a slave device with a Radar Interference Detection function, the UUT shall associate with a master device. The signal generator and the UUT are connected using Set-up C.

b) The UUT shall transmit a test transmission sequence in accordance with clause 5.1.2.2 of standard on the selected channel Ch r

.

c) At a certain time T0, a radar burst is generated on Ch r

using radar test signal #1 defined in table D.4 of standard and at a level defined in standard T1 denotes the end of the radar burst.


e) The step b) to d) shall be repeated at least 20 times in order to determine the detection probability for the selected radar test signal. The detection probability shall be compared with the limit specified in table D.4 of standard.

f) The steps b) to e) shall be repeated for each of the radar test signals defined in table D.4 and as described in standard.

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20MHz Channel Mode

Channel Move Time for Radar Test Signal 1 at 5300MHz

Report No.: 08B005S

Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass

The results showed that after radar signal injected the channel move time was less than 10 seconds.

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Report No.: 08B005S


Channel Closing Transmission Time for Radar Test Signal 1 at 5300 MHz

Test Item Limit Results

Channel Closing Transmission 260 milliseconds over remaining 10 seconds Pass period

The results showed that after radar signal injected the transmission closing was less than 260 milliseconds.

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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Draft 802.11n Standard – 40MHz Channel Mode


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Test Item

Channel Move Time

Limit

10 Seconds

Results

Pass


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Channel Shutdown and Non-Occupancy period

The steps below define the procedure to verify the Channel Shutdown process and to determine the Channel Closing Transmission Time, the Channel Move Time and the

Non-Occupancy Period.

a) When the UUT is a master device, a slave device will be used that associates with the

UUT. The signal generator and the UUT shall be connected using Sep-up A.

When the UUT is a slave device (with or without a Radar Interference Detection function), the UUT shall associate with a master device. The signal generator and the UUT shall be connected using Set-up B.

In both cases, it is assumed that the channel selection mechanism for the Uniform

Spreading requirement is disabled in the master.

b) The UUT shall transmit a test transmission sequence in accordance with clause 5.1.2.2 of standard on the selected channel Ch r

.

c) At a certain time T0, a radar burst is generated on Ch r

using radar test signal #1 defined in table D.4 of standard and at level of 10 dB above the level defined in standard on the selected channel. T1 denotes the end of the radar burst.

d) The transmissions of the UUT following instant T1 on the selected channel shall be observed for a period greater than or equal to the Channel Move Time defined in table

D.1 of standard. The aggregate duration (Channel Closing Transmission Time) of all transmissions from the UUT during the Channel Move Time shall be compared to the limit defined in table D.1 of standard.

Note: The aggregate duration of all transmissions of the UUT does not include quiet periods in between transmissions of the UUT.

e) T2 denotes the instant when the UUT has ceased all transmissions on the channel. The time difference between T1 and T2 shall be measured. This value (Channel Move Time) shall be noted and compared with the limit defined in table D.1 of standard.

f)

When the UUT is a master device, following instant T2, the selected channel shall be observed for a period equal to the Non-Occupancy Period (T3-T2) to verify that the UUT does not resume any transmissions on this channel.

g) When the UUT is a slave device with a Radar Interference Detection function the steps b) to e) shall be repeated with the generator connected to the UUT using Set-up C. See also table D.3 of standard.

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30 Minute Non-Occupancy Period (using Type 1 Radar) at 5300 MHz

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Test Item

Non-Occupancy Period

Limit

30 Minutes

Results

Pass

No EUT transmissions were observed on the test channel during 30 minutes observation time.

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Test Item


Limit

30 Minutes

Results

Pass


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Test Item


Limit

30 Minutes

Results

Pass


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Test Item


Limit

30 Minutes

Results

Pass


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For Radiated measurement

For a UUT with integral antenna(s) and without temporary antenna connector, radiated measurements shall be used.

If the UUT has a Radar Interference Detection function, the output power of the signal generator shall (unless otherwise specified) provide a signal power at the antenna of the UUT with a level equal to Interference Detection Threshold (table D.2, table D.3 of standard).

The test set up as described in annex B of standard and applicable measurement procedures as described in annex C of standard shall be used to test the different DFS features of the UUT. The test procedure is further as described under clause 5.3.7.2.1 of standard.

Uncertainty

The measurement uncertainty is defined as ± 1.27 dB for conducted measurement

± 3.90 dB for radiated measurement

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Annex D (normative)

DFS parameters

Table D.1: DFS requirement values

Parameter Value

Channel Availability Check Time 60 s

Channel Move Time

Channel Closing Transmission Time


10 s

260 ms

30 min

Table D.2: Interference threshold values, mater

Value (see note) Maximum Transmit Power (eirp)



200 mW



200 mW

-64 dBm

-62 dBm

NOTE: This is the level at the input of the receiver assuming a 0 dBi receive antenna

Table D.3: Interference threshold values, slave

Maximum Transmit Power (eirp)



200 mW



200 mW

Value (see note)

-64 dBm

N/A

NOTE: This is the level at the input of the receiver assuming a 0 dBi receive antenna

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Signal

1 – Fixed

2 – Variable

W [



s

] (see note 5)

1

1, 2, 5

Table D.4: Parameters of DFS test signals

Pulse Repetition

Frequency PRF

[pps]

Pulses per

Burst (see note 1)

750

200, 300, 500, 800,

1000

15

10

Detection

Probability with 30%

Channel Load

Pd > 60%

Pd > 60%

3 – Variable 10, 15 200, 300, 500, 800,

1000

1, 2, 5, 10, 15 1200, 1500, 1600

15 Pd > 60%

4 – Variable

5 – Variable 1, 2, 5, 10, 15 2300, 3000, 3500,

4000

20, 30 2000, 3000, 4000

15

25

Pd > 60%

Pd > 60%

6 – Variable

Modulated (see note 6)

20 Pd > 60%

NOTE 1: This represents the number of pulses seen at the RLAN per radar scan:

N = [{antenna beam width (deg)} × {pulse repetition rate (pps)}] / [{scan rate (deg/s)}].

NOTE 2: The test signals above only contain a single burst of pulses.

NOTE 3: The number of pulses per burst given in this table simulates real radar systems and t takes into account the effects of pulse repetition rate and pulse width on the detection probability for a single burst.

NOTE 4: Pd gives the probability of detection per simulated radar burst and represents a minimum level of detection performance under defined conditions - in this case 30 % traffic load. Therefore Pd does not represent the overall detection probability for any particular radar under real life conditions. In general 5 sequential bursts are needed to achieve a real life detection rate of better that 99 % for any radar that falls within the scope of this table.

NOTE 5: The pulse width used in these tests is assumed to be representative of real radar systems with different pulse widths and different modulations. The pulse width is assumed to have an accuracy of ±5 %.

NOTE 6: The modulation to be used for the radar test signal 6 is a chirp modulation with a

±2,5MHz frequency deviation which is described below.

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WLM200NX CE DFS Test Report 08B005S rpt

DFS Test Report

Product Name ： WIRELESS-N NETWORK MINI PCI ADAPTER

Model No.

： IWAVEPORT WLM200NX

Applicant ：

Compex Systems Pte Ltd

Address ：

135 Joo Seng Road, #08-01 PM Industrial Building

Singapore 368363

Date of Receipt ： 2008/10/27

Report No.

： 08B005S

Issued Date

： 2009/1/21

Version

： V1.0

Test Result for DFS

Dynamic Frequency Selection (DFS) Test

Annex D (normative)

DFS parameters

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