Wi Fi RF Test Commands for Linux
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页数：21 · 语言：英文
原始文档：Wi-Fi RF Test Commands for Linux-v03.pdf
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Version information
| Version | Date | Author |
|---|---|---|
| 0.3 | 2018/06/02 | Terence Hsieh |
| 0.1 | 2013/04/02 | Bart Lin |
Continuous Modulation/Single-Tone Tx Configuration
The following procedure describes how to analyze the 802.11a/b/g/n Tx Packet using IQview and WL commands.
Set up the IQview for Modulation/Single-Tone Tx
Step1. Execute IQview.exe and the GUI shows below.
Set up the IQview for Modulation/Single-Tone Tx
For IQMIMO (For analyze 802.11a/g/n mode) For IQsignal (For analyze 802.11a/b/g mode)
Set up Wi-Fi in your device for RF Test
If Wi-Fi driver is built a kernel module(bcmdhd.ko): 1) Pull BT_REG_ON to Low 2) insmod /system/lib/modules/bcmdhd.ko iface_name=wlan0 firmware_path=/etc/firmware/fw_bcmdhd_mfg.bin nvram_path=/etc/firmware/nvram.txt 3) ifconfig wlan0 up 4) wl ver Check firmware name and should include (WLTEST) string
If Wi-Fi driver is built in kernel 1) Pull BT_REG_ON to Low 2) echo /system/etc/firmware/fw_bcmdhd_mfg.bin > /sys/module/bcmdhd/parameters/firmware_path 3) ifconfig wlan0 up 4) wl ver Check firmware name and should include (WLTEST) string
Continuous Modulation Tx – 802.11a
| Modulation | nrate | rateset |
|---|---|---|
| BPSK | 6 | 6b |
| BPSK | 9 | 9b |
| QPSK | 12 | 12b |
| QPSK | 18 | 18b |
| 16-QAM | 24 | 24b |
| 16-QAM | 36 | 36b |
| 64-QAM | 48 | 48b |
| 64-QAM | 54 | 54b |
wl down wl band a wl mpc 0 wl nrate -r 54 wl rateset 54b wl country ALL wl up wl channel 36 wl scansuppress 1 wl txpwr1 -1 wl pkteng_start 00:11:22:33:44:55 tx 100 1000 0 wl phy_forcecal 1
| Band | channel |
|---|---|
| 5GHz Band 1(5150~5250) | 36, 40, 44, 48 |
| 5GHz Band 2(5250~5350) | 52, 56, 60, 64 |
| 5GHz Band 3(5475~5725) | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 |
| 5GHz Band 4(5725~5850) | 149, 153, 157, 161, 165 |
Continuous Modulation Tx – 802.11b
| Modulation | nrate | rateset |
|---|---|---|
| DBPSK | 1 | 1b |
| DQPSK | 2 | 2b |
| DQPSK | 5.5 | 5.5b |
| DQPSK | 11 | 11b |
wl down wl band b wl mpc 0 wl nrate -r 11 wl rateset 11b wl country ALL wl up wl channel 1 wl scansuppress 1
| Band | channel |
|---|---|
| 2.4GHz (2400~2483) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 |
wl txpwr1 -1 wl pkteng_start 00:11:22:33:44:55 tx 100 1000 0 wl phy_forcecal 1
Continuous Modulation Tx – 802.11g
| Modulation | nrate | rateset |
|---|---|---|
| BPSK | 6 | 6b |
| BPSK | 9 | 9b |
| QPSK | 12 | 12b |
| QPSK | 18 | 18b |
| 16-QAM | 24 | 24b |
| 16-QAM | 36 | 36b |
| 64-QAM | 48 | 48b |
| 64-QAM | 54 | 54b |
wl down wl band b wl mpc 0 wl nrate -r 54 wl rateset 54b wl country ALL wl up wl channel 1 wl scansuppress 1
| Band | channel |
|---|---|
| 2.4GHz (2400~2483) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 |
wl txpwr1 -1 wl pkteng_start 00:11:22:33:44:55 tx 100 1000 0 wl phy_forcecal 1
Continuous Modulation Tx – 802.11n
| Modulation | nrate (MCS) |
|---|---|
| BPSK | 0 |
| QPSK | 1 |
| QPSK | 2 |
| 16-QAM | 3 |
| 16-QAM | 4 |
| 64-QAM | 5 |
| 64-QAM | 6 |
| 64-QAM | 7 |
wl down wl band b Set band: a = 5G, b = 2.4G wl mpc 0 wl nrate -m 7 wl rateset 54b wl country ALL wl up wl channel 1 wl scansuppress 1 wl txpwr1 -1 wl pkteng_start 00:11:22:33:44:55 tx 100 1000 0
| Band | channel |
|---|---|
| 2.4GHz (2400~2483) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 |
| 5GHz Band 1(5150~5250) | 36, 40, 44, 48 |
| 5GHz Band 2(5250~5350) | 52, 56, 60, 64 |
| 5GHz Band 3(5475~5725) | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 |
| 5GHz Band 4(5725~5850) | 149, 153, 157, 161, 165 |
wl phy_forcecal 1
Continuous Single-Tone Tx
Set band: a = 5G, b = 2.4G wl band b wl out wl fqacurcy 1
| Band | fqacurcy |
|---|---|
| 2.4GHz (2400~2483) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 |
| 5GHz Band 1(5150~5250) | 36, 40, 44, 48 |
| 5GHz Band 2(5250~5350) | 52, 56, 60, 64 |
| 5GHz Band 3(5475~5725) | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 |
| 5GHz Band 4(5725~5850) | 149, 153, 157, 161, 165 |
Continuous Modulation/Single-Tone Tx
Select desired channel
Path loss Click Start to analyze packets Output power
EVM
Symbol clock Freq. Tolerance
Continuous Rx Configuration
The following procedure shows the setup for OFDM 54 Mbps signal sequence with a 1000 packet count and describes how to calculate the RX Packet Error Rate using IQview and WL commands.
Set up the IQview VSG function for Continuous Rx
Step1. Execute IQview.exe and the GUI shows below.
Step2. From the GUI, select Tools and then click Vector Signal Generator.
Set up the IQview VSG function for Continuous Rx
Step3. The Vector Signal Generator GUI shows below.
Step4. Select File and click Open Generator File to load the wave-form.
Set up the IQview VSG function for Continuous Rx
Step5. From the Open Signal File, select the desired wave-form file and click Open.
For test 802.11b(11M), please select CCK_11.mod 802.11a/g(54M), please select OFDM_54.mod 802.11n(mcs7), please select mcs7_HT20.mod (IQ MIMO)
Set up the IQview VSG function for Continuous Rx
Click Start to sent packets Select desired channel
Set the number of data packets=1000
Set the desired output power
Continuous Rx
wl down wl band auto wl mpc 0 wl country ALL wl scansuppress 1 wl channel 7 wl bi 65535
| Band | fqacurcy |
|---|---|
| 2.4GHz (2400~2483) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 |
| 5GHz Band 1(5150~5250) | 36, 40, 44, 48 |
| 5GHz Band 2(5250~5350) | 52, 56, 60, 64 |
| 5GHz Band 3(5475~5725) | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 |
| 5GHz Band 4(5725~5850) | 149, 153, 157, 161, 165 |
wl up wl counters
Continuous Rx
Step2. Enter the ./wl counters command and note the number following the rxdfrmocast (9957).
Continuous Rx
Step3. Click the Start button and then enter the ./wl counters command .
Step4. After enter the ./wl counters command and note the number following the rxdfrmocast (10905).
Continuous Rx
Step5. The RX PER
= (Total lost packets at receiver / Total sent packets from the VSG)*100%
In this example:
Total packets received = 10905-9957=948.
So, the Total lost packets at receiver = 1000-948 = 52.
Thus, the RX PER = 52/1000 = 5.2% for -70dBm, OFDM 54Mbps