User Manual 1

FCC ID: J9C-EA544D2

Users Manual

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Contents

1 Introduction...................................................................................................... 1
1.1 Purpose.......................................................................................................................... 1
1.2 Scope............................................................................................................................. 1
1.3 Conventions .................................................................................................................. 1
1.4 References..................................................................................................................... 2
1.5 Technical assistance ...................................................................................................... 2
1.6 Acronyms ...................................................................................................................... 2

2 Requirements and Setup ................................................................................ 3
2.1 Requirements ................................................................................................................ 3
2.2 AP and client setup ....................................................................................................... 5
2.2.1 Qualcomm AP setup .......................................................................................... 5
2.2.2 Client (slave) setup ............................................................................................ 6
2.3 DFS test setup configuration......................................................................................... 7
2.3.1 Density configuration ........................................................................................ 8
2.3.2 Frequency/channel selection .............................................................................. 8
2.3.3 Channel bonding configuration (40 MHz mode) ............................................... 9
2.3.4 Radar probability test mode configuration ...................................................... 10
2.3.5 Radar parking control (Channel Availability Check Control) ......................... 10
2.3.6 View the DFS configuration ............................................................................ 10
2.3.7 Choosing persistency of the radar channel information .................................. 10
2.3.8 Deleting the history file ................................................................................... 11
2.4 Configuring the AP for DFS tests - Examples ............................................................ 11
2.4.1 Radar probability test ....................................................................................... 11
2.4.2 Channel move time test ................................................................................... 11
2.4.3 Channel availability test .................................................................................. 12
2.5 Avoiding false detection ............................................................................................. 12
2.6 Summary DFS related commands .............................................................................. 12

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Contents

Figures
Figure 2-1 Basic DFS test setup diagram for WCN1320 PCIe-based AP ................................................... 4
Figure 2-2 Basic DFS test setup diagram for WCN1320 Ethernet-based AP.............................................. 5
Figure 2-3 Client setup................................................................................................................................. 6

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Contents

Tables
Table 1-1 Reference documents and standards ............................................................................................ 2
Table 2-1 40 MHz channel pairs ................................................................................................................... 8
Table 2-3 DFS command summary ............................................................................................................ 12

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Revision history
Revision Date Description
A Sept 2009 Initial release

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Introduction

1 1.4 References
2 Reference documents, which may include QUALCOMM®, standards, and resource documents,
3 are listed in Table 1-1. Reference documents that are no longer applicable are deleted from this
4 table; therefore, reference numbers may not be sequential.

5 Table 1-1 Reference documents and standards

Ref. Document

Qualcomm
Q1 Application Note: Software Glossary for Customers CL93-V3077-1
6

7 1.5 Technical assistance
8 For assistance or clarification on information in this guide, submit a case to Qualcomm CDMA
9 Technologies at https://support.cdmatech.com/.
10 If you do not have access to the CDMATech Support Service website, register for access or send
11 email to support.cdmatech@qualcomm.com.

12 1.6 Acronyms
13 For definitions of terms and abbreviations, refer to [Q1].
14

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1 2 Requirements and Setup

2 This chapter enumerates the hardware and software requirements for DFS testing the setup for
3 same.

4 2.1 Requirements
5 1. LP1: Laptop with a USB 2.0 slot (IBM T43) – Acts as a client device with an installed USB
6 802.11n wireless adapter. FCC specified Video codec and player must be installed on this
7 laptop. If third party client card is used, make sure that 11h is enabled on the device.
8 2. LP2: Laptop with Ethernet port and USB slot (HP Compaq 6710b) – Ethernet connected to the
9 AP (Master) for streaming the video; serially connect to the AP via a USB to serial adapter
10 for console printing. FCC specified video file must be saved on the hard drive of this laptop.
11 This PC is an agent for the WCN1320-based AP.
12 3. WCD: Wireless adapter to use on the client side (Linksys WUSB600N).
13 4. AP: Access Point (DUT) or Master device. Qualcomm WCN1320-based 65-VN780-P2 PCIe
14 AP / Qualcomm WCN1320-based 65-VN663-P2 Ethernet AP with DFS software.
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$Requirements and Setup 1 2.3 DFS test setup configuration 2 3 Follow the steps below to confirm the WCN1320 test setup is ready to use: 4 5 1. Confirm the connections of all the devices as shown in the figures above. 6 2. Confirm that unique static IP addresses have been for LP2 (192.168.1.102). 7 3. Insure that the IP address is set for the client (192.168.1.100) on the slave device (LP1) 8 and not for any other network devices on the laptop. 9 4. Launch Tera Term Pro on LP2 and confirm messages appear when the AP is powered on. 10 5. Confirm the TeraTerm serial port configuration on LP2 for the Master device: 11 Port: COM1 12 Baud Rate: 115200 for PCIe-based AP (DUT) 13 38400 for Ethernet-base AP (DUT) 14 Data: 8bit 15 Parity: None 16 Stop: 1bit 17 Flow Control: None 18 19 1. To access the video file on LP2 from LP1: 20 a) On LP1 go to Start>Run> 21 b) In the Run box type \\192.168.1.102\DFS 22 c) When prompted for the user name and password, enter: 23 SCLWLSW for the user name and Aigonet1 for the password NOTE The video file in the DFS folder on LP2 is “TestFile.mpg”. 24 2. Start running the video file from LP1 by simply double clicking the video file or you may 25 want to choose the “open with” option to select the required media player. 26 3. Video should now be streaming from LP2 to LP1 over the air. 27 4. Restart the video whenever needed and each time the AP is rebooted. The video will be 28 stopped automatically when the AP is rebooted. NOTE The aniSdkTool –s cga command is required to be issued after any aniSdkTool –s command to have the aniSdkTool –s take effect. 80-VT830-1 Rev. A 7 Qualcomm Confidential and Proprietary MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION$

Requirements and Setup

1 5. As each test is completed, it is recommended to reboot the AP with the default
2 settings before beginning the next test by issuing the following command:
3 reboot

4 2.3.1 Density configuration
5 Data density can be modified by issuing the command below on Tera Term Pro console of LP2.
6 There are two separate commands for data density modifications, one for 40MHz bandwidth
7 mode and one for 20MHz bandwidth mode:
8 Commands for setting data density at 27 Mbps (40MHz bandwidth mode):
9 dump 188 0
10 dump 181 2 82 82 82
11 Commands for setting data density at 26 Mbps (20MHz bandwidth mode):
12 dump 188 0
13 dump 180 2 66 66 66
14 Output: The data density will be increased and the increased data density can be observed on RF
15 spectrum analyzer which is capturing the traffic activities of Qualcomm Master Device.

16 2.3.2 Frequency/channel selection
17 For conducting the FCC radar tests, the DUT must be set on certain specific frequencies. The
18 IEEE 802.11n protocol does not allow operation on all the frequencies in 40 MHz mode.
19 Only certain pairs of primary and secondary channels are allowed in 40 MHz as shown in the
20 table below. For example when the primary channel is selected at 40, the secondary channel of 44
21 cannot be selected.
22 Table 2-1 40 MHz channel pairs

Primary Secondary
36 40
40 36
44 48
48 44
52 56
56 52
60 64
64 60
100 104
104 100
108 112
112 108

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Requirements and Setup

Primary Secondary
116 120
124 128
128 124
132 136
136 132
149 153
153 149
157 161
161 157
1

2 By default, the Qualcomm Master devoce will boot up in 40 MHz mode on primary channel 100
3 and secondary channel 104. The center frequency will be at 5510 MHz.
4 The DFS commands to set the frequency are as follows:
5 aniSdkTool –s dfs 0 2 {prim}
6 aniSdkTool –s dfs 0 8 1 (force the AP to select the configured channel)
7 aniSdkTool –s cga (configure the AP to the selected channel)
8 Specify the primary {prim} channel and the secondary will be selected automatically based on
9 the combinations shown in the table above.

10 2.3.2.1 Channel to frequency/frequency to channel conversion
11 Frequency to channel: frequency: (frequency-5000)/5
12 Example: (5180-5000)/5 = channel 36 and (5600-5000)/5 = channel 120
13 Channel to frequency: ((channel*5)+5000)
14 Example: ((36*5)+5000) = frequency 5180 and ((48*5)+5000) = frequency 5240
15 If primary is 44 and secondary is 48, the central frequency would be at channel 46 in 40 MHz
16 mode (channel bonding enabled). If in 20 MHz mode, the operating frequency would be at
17 channel 44 (primary channel).
18 The command aniSdkTool –g rad shows the radio status of AP. If 40 MHz bandwidth is enabled, this
19 command will show both primary and secondary channels and if 20 MHz mode is enabled, it will show
20 only the primary channel as there is no secondary channel in this mode .

21 2.3.3 Channel bonding configuration (40 MHz mode)
22 The commands to enable channel bonding are as follows:
23 aniSdkTool –s bond 0 1
24 aniSdkTool –s cga
25 The commands to disable channel bonding (i.e. set 20 MHz mode) are as follows:

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Requirements and Setup

1 aniSdkTool –s bond 0 0
2 aniSdkTool –s cga

3 2.3.4 Radar probability test mode configuration
4

5 In radar probability test mode, the AP will not switch the channel upon detecting radar; instead
6 the AP remains on the same channel and prints a message on the console upon detecting radar
7 pulses. This allows the tester to continuously issue radar pulses without reconfiguring the AP
8 with the target frequency multiple times.
9 To enable the AP for probability test mode, the following command is used:
10 dump 19 1
11 To disable probability test mode and allow the AP to switch channels upon radar detection, the
12 following command is used:
13 dump 19 0
14 When in test mode, the output on the console of LP2 will be similar to the following:
15 halIsFalseRadarTrigger: 402: AGC_RDET_RADAR_DETECTED_REG : 7
16 Detected a genuine radar interrupt, radarPulseWidth=110, numRadarPulse=4
17 halRadar_ProcessDetectInd: 513: Radar interrupt testing in progress...

18 2.3.5 Radar parking control (Channel Availability Check Control)
19

20 When DFS selects a radar channel, it parks on that channel for 60 seconds before starting the AP
21 to insure that the channel is radar free. Sometimes this delay might be a nuisance when
22 performing DFS testing.
23 To avoid the channel availability check (i.e. disable radar parking), use the following commands:
24 aniSdkTool –s dfs 0 9 0
25 aniSdkTool –s cga
26 To enable radar parking, use the following commands:
27 aniSdkTool –s dfs 0 9 1
28 aniSdkTool –s cga

29 2.3.6 View the DFS configuration
30

31 To view the complete active DFS configuration on the AP, use the following commands:
32 aniSdkTool –g dfs 0

33 2.3.7 Choosing persistency of the radar channel information
34 During normal operation of the AP with DFS turned on, when radar is detected on the current
35 operating channel, DFS is triggered to select another channel to avoid interfering with the radar
36 signals. When selecting another channel DFS will record or “persist” the channel on which radar
37 was detected and will not allow the AP to operate in this radar affected channel for another 30
38 minutes per FCC requirements.

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Requirements and Setup

1 During DFS testing it might be required to utilize the same radar affected channel in spite
2 detected radar. Radar channel persistence can be disabled using the following commands:
3

4 Disable persisting radar channel, use the following commands:
5 aniSdkTool –s dfs 0 7 0
6 aniSdkTool –s cga
7 Enable persisting radar channel, use the following commands:
8 aniSdkTool –s dfs 0 7 1
9 aniSdkTool –s cga

10 2.3.8 Deleting the history file
11 To decrease testing time, the radar detection history file on the Qualcomm Master device may be
12 deleted so that channels where radar was detected previously, may be reused.
13 To delete the radar hisfile on the Qualcomm Master, use the following commands:
14 rm /config/wsmSavedRadarDetectList
15 reboot

16 2.4 Configuring the AP for DFS tests - Examples
17 This section describes the steps required to configure the AP for each of the FCC DFS tests.

18 2.4.1 Radar probability test
19 Commands to configure the radar probability test in channel 120 (20MHz):
20 aniSdkTool –s bond 0 0
21 aniSdkTool –s dfs 0 2 120
22 aniSdkTool –s dfs 0 8 1
23 aniSdkTool –s cga
24

25 After the AP is fully booted with the new settings, issue the following command to put AP into
26 probability test mode:
27 dump 19 1

28 2.4.2 Channel move time test
29 Commands to configure the AP for testing channel move time:
30 aniSdkTool –s dfs 0 2 120
31 aniSdkTool –s dfs 0 8 1
32 aniSdkTool –s cga
33

34 After AP is fully booted with new settings, issue the following command to insure that the AP is
35 not in probability test mode.
36 dump 19 0

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Requirements and Setup

1 2.4.3 Channel availability test
2 Commands to configure the channel availability test on channel 120:
3 aniSdkTool –s dfs 0 2 120
4 aniSdkTool –s dfs 0 8 1
5 aniSdkTool –s cga

6 2.5 Avoiding false detection
7 When you configure the AP to start on a potential radar channel, there is a slight probability of
8 false detection caused due to the highly sensitive antenna either during channel availability check
9 or after AP is up. False detection can result in a channel switch to another channel and hence
10 slowing down the test process. To avoid the channel switch due to false detection, it is always
11 better to put the AP into probability test mode whenever we are not testing channel move time or
12 some other test where we require a channel switch.
13 To do this, issue the command dump 19 1 right after rebooting the AP.

14 2.6 Summary DFS related commands
15 The table below is a summary of DFS related commands.

16 Table 2-2 DFS command summary
# Summary Commands Details Default
Value
1. Setting aniSdkTool –s Preferred 2.4 GHz 6, 2
preferred 2.4 dfs 0 1 channels to be selected
GHz channels {prim} by DFS algorithm.
{secd} Channel spacing should
be 4 between primary
and secondary.
2. Setting aniSdkTool –s Preferred 5 GHz 36, 40
preferred 5 dfs 0 2 channels to be selected
GHz channels {prim} by DFS algorithm.
Secondary channel
would be selected
automatically.
3. Setting aniSdkTool –s UNII bands from which Low and
preferred UNII dfs 0 3 {low DFS can select High
bands 1/0} {mid channels. 1 – Enabled, 0
1/0} {high –Disable, at least one
1/0} band should be enabled.

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Requirements and Setup

# Summary Commands Details Default
Value
4. Setting aniSdkTool –s Preferred band of 5 GHz
preferred band dfs 0 4 operation for DFS when
{5GHz} the AP is configured to
operate in any band. 1 –
5GHz, 0 – DFS
selected.

5. Setting weight aniSdkTool –s Minimum percentage 20%
margin dfs 0 5 difference in weight
{percentage} between weight of the
current operating
channel and the weight
of the DFS selected
channel.
6. Setting CB aniSdkTool –s Maximum threshold 6000000
threshold dfs 0 6 weight above which
{Threshold} DFS will turn off the
channel bonding.

7. Enable/Disable aniSdkTool –s Enable or disable Enabled
Persisting dfs 0 7 {1/0} persisting the radar
radar channel channel into flash.
into flash
8. Enable/DisableaniSdkTool –s Enable or disable Disabled
force channel dfs 0 8 {1/0} forcing DFS to pick a
select preferred channel,
provided no radar
history is present in
those channels.
9. Enable/Disable aniSdkTool –s Enable or disable Enabled
radar parking dfs 0 9 {1/0} parking “channel
availability check” for
60 seconds when radar
channel is selected.
10. Setting aniSdkTool –s Setting a minimum 10
potential radar dfs 0 10 weight to be assigned to
channel weight {weight} potential radar channels
giving more priority to
non-potential radar
channels.
11. Show DFS aniSdkTool –g Get all the DFS -
parameters dfs 0 parameters.
1

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Document Created: 2009-09-23 22:00:18
Document Modified: 2009-09-23 22:00:18