DOCUMENTTYPE
Janne Aitta
22.01.2006
TEST SPECIFICATION
WLAN TX Stability with own antenna
Owner (Function):
Responsible person:
Approver:
Filename:
MP / HW / NCW
Janne Aitta
WLANTXSTABILITY.doc
Change History
Version
Status
Date
Responsible person
Comments
01.
Proposal
22-Jan-2006
Janne Aitta
1 (5)
DOCUMENTTYPE
Janne Aitta
2 (5)
22.01.2006
0. Test Classification
Feature Group = NCW features
Feature = WLAN
Sub-Feature = TX
HW Test Type = Performance
Execution -Type = Manual
1. PURPOSE
Purpose of the test is to verify stability of the transmitter in mismatch condition. Transmitter is
used in various environments and conditions in normal usage and it should always stay stabile in
order to avoid communication problems.
2. ORIGINAL REQUIREMENT & REFERENCES
Spurious emissions in given frequency band shall not exceed –45dBc.
3. EQUIPMENT
Dongle Nokia PKD-1RD
Spectrum Analyser R&S FSEA
WLAN antenna GigaAnt Titanis
Temperatur chamber VT 4002
FBUS cable DAU9-T
Battery BL-4C
Metallic table
4. VARIABLE CONDITIONS AND PARAMETERS
4.1
Imported Test Director Parameters and Fields:
4.1.1 Parameters
N/A
4.1.2 Fields
<<Network>>
<<Phone_Mode>>
<<HWID>>
<<PSN>>
DOCUMENTTYPE
Janne Aitta
3 (5)
22.01.2006
<<SW Version>>
4.2
Exported Test Director Parameters and Fields
4.2.1 Parameters
N/A
4.2.2 Fields
<<Temperature>>
<<Samples>>
(recommendet temp. values)
(recommended no. of samples to test)
5. FIXED CONDITIONS AND PARAMETERS
Amount of phones
to be measured:
3
Supply Voltage:
Channels:
Power level:
Temperature:
4.3V (BL-4C battery, fully charged)
Low, mid, high (1, 7, 13)
Highest
-30 C
6. DESCRIPTION OF TEST
Test is made by rotating phone into different positions on a metal plate and observing transmitter
spectrum with spectrum analyser. Test setup is shown in figure 1.
Figure 1 Stability test setup
DOCUMENTTYPE
Janne Aitta
4 (5)
22.01.2006
Test procedure:
1) Charge a few batteries to full charge.
2) Put the phones to climatic chamber and set the temperature to –30 degrees Celsius. Don’t put
batteries in cold.
3) Setup the spectrum analyzer as described below:
-
Center frequency: according to transmitting channel
-
Span: 500MHz
-
RBW & VBW: 300kHz
-
Amplitude: according to signal strength
4) Let the temperature of the climatic chamber stabilize for 30 minutes.
5) Take one phone at a time from chamber for testing. Measure only one channel from the phone
and let it freeze again before measuring second channel.
Set WLAN TX on using Phoenix Wlan Tx Tests - control window. Use the following settings:
-
Test mode: Carrierwave Tx
-
Channel: 1, 7 or 13
-
Power loop: Calibrated
-
Power: maximum output power (f.ex. 17dBm)
6) Check that the carrier is present on the spectrum analyzer at the expected frequency.
7) Press Trace -> Max Hold on the spectrum analyzer.
8) Rotate phone in various positions, different sides of phone touching metal plate. Try also flip
closed if you have fold phone.
9) Measure the maximum peaks around carrier wave in dBc using markers in spectrum analyzer.
7. TEST AUTOMATION
None
8.
TEST LIMITS
See Section 2
9. JUSTIFICATION FOR TEST LIMITS
DOCUMENTTYPE
Janne Aitta
10.
5 (5)
22.01.2006
APPROVAL CRITERIA
The test is passed if the results are within the defined limits.
10.1
Test Case Version Info: v01.
10.2
Generic configuration information to be reported (defined test director fields):
(If test director fields exist, filling these values here is optional. Filling them to testdirector is
mandatory.)
HWID
SNR
____
____
Phone
Mode
____
Vbat
____
Network:
Band
____
SW
______