DOCUMENTTYPE Janne Aitta 22.01.2006 TEST SPECIFICATION WLAN TX CPK DSSS/CCK modulation schemes Owner (Function): Responsible person: Approver: Filename: MP / HW / NCW Janne Aitta WLAN_TX_CPK_DSSS_CCK.doc Change History Version Status Date Responsible person Comments 0. Test Classification 01. Proposal 22-Jan-2006 Janne Aitta 1 (8) DOCUMENTTYPE Janne Aitta 22.01.2006 Feature Group = NCW features Feature = WLAN Sub-Feature = TX HW Test Type = Performance Execution -Type = ATE 1. PURPOSE Purpose of WLAN Cpk test is to get statistically significant amount of data to 1) evaluate the performance of the transceiver conform to requirements 2) find out design parameters that may cause problem in mass production. Conformance is required for WLAN qualification of the product. The following parameters are to be measured: Transmit output power Transmit spectrum mask Transmit center frequency tolerance Transmit power-on and power-down ramp Transmit modulation accuracy, EVM Maximum spectral power density Frequency range 6dB bandwidth 2 (8) DOCUMENTTYPE Janne Aitta 3 (8) 22.01.2006 2. ORIGINAL REQUIREMENT & REFERENCES 2.1 Transmit output power The typical conducted transmit output power requirement for different data rates is shown in table 2.1. Datarate [Mb/s] Power [dBm] Tolerance [dB] 1, 2, 5.5, 11 17 +/-1 Table 2.1 Transmit output power for different datarates Note: The equivalent isotropic radiated power shall be equal to or less than 20dBm (100 mW) e.i.r.p. The e.i.r.p. shall be calculated as follows: P=A+G Where P = equivalent isotropic radiated power A = measured conducted output power G = measured antenna gain (given by the manufacturer) 2.2 Transmit spectrum mask The transmitted spectral products shall be less than –30 dBr (dB relative to the SINx/x peak) for fc – 22 MHz < f < fc –11 MHz; and fc + 11 MHz < f < fc + 22 MHz; and shall be less than –50 dBr for f < fc – 22 MHz; and f > fc + 22 MHz. where fc is the channel center frequency. The transmit spectral mask is shown in Figure 2-1. The measurements shall be made using a 100 kHz resolution bandwidth and a 100 kHz video bandwidth. DOCUMENTTYPE Janne Aitta 4 (8) 22.01.2006 Figure 2-1 Transmit spectrum mask 2.3 Transmit center frequency tolerance The transmitted center frequency tolerance shall be ±25 ppm maximum. It is determined by measuring symbol clock frequency error. 2.4 Transmit power-on and power-down ramp The transmit power-on ramp for 10% to 90% of maximum power shall be no greater than 2 us. The transmit power-on ramp is shown in Figure 2-2. The transmit power-down ramp for 90% to 10% maximum power shall be no greater than 2 us. The transmit power-down ramp is shown in Figure 2-3. DOCUMENTTYPE Janne Aitta 5 (8) 22.01.2006 Figure 2-2 Transmit power-on ramp Figure 2-3 Transmit power-down ramp 2.5 Transmit modulation accuracy, EVM The transmit error vector magnitude shall be less than 35%. 2.6 Maximum spectral power density The maximum spectral power density is defined as the highest level of power in Watts per Hertz generated by the transmitter within the power envelope. The maximum spectrum power density is limited to 10dBm (10 mW) per MHz e.i.r.p DOCUMENTTYPE Janne Aitta 6 (8) 22.01.2006 The e.i.r.p. shall be calculated as follows: PD = A + G Where PD = the maximum spectral power density e.i.r.p. A = measured conducted maximum spectral power density G = measured antenna gain (given by the manufacturer) 2.7 Frequency range The frequency range of the equipment is determined by the lowest and highest frequencies occupied by the power envelope. fH is the highest frequency of the power envelope: it is the frequency furthest above the frequency of maximum power where the output power drops below the level of -80 dBm/Hz e.i.r.p. spectral power density (-30 dBm if measured in a 100 kHz bandwidth). fL is the lowest frequency of the power envelope; it is the frequency furthest below the frequency of maximum power where the output power drops below the level equivalent to -80 dBm/Hz e.i.r.p. spectral power density (or -30 dBm if measured in a 100 kHz bandwidth). The frequency range is determined by the lowest value of fL and the highest value of fH resulting from the adjustment of the equipment to the lowest and highest operating frequencies. The frequency range shall lie within the band 2,4 GHz to 2,4835 GHz (fL > 2,4 GHz and fH < 2,4835 GHz). 2.8 6dB bandwidth The minimum 6 dB bandwidth shall be at least 500 kHz. 3. EQUIPMENT Dongle Nokia PKD-1RD Power supply for Mobile (0 - 500V; 3A) Agilent E36xx or RS NGMO2 WLAN test equipment Agilent N4010A Temperatur chamber VT 4002 Shielded Box MSE Box V3 , Manufacturer: Delta FBUS cable DAU9-T Battery dummy (JIG) DOCUMENTTYPE Janne Aitta 7 (8) 22.01.2006 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>> <<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: Depending on build. >10 if Cpk calculation will be made. Supply Voltage: Channels: Power levels: Temperatures: 3.3V, 3.8V, 4.3V Low, mid, high (1, 7, 13) As defined in test cases -10, +25, +55 6. DESCRIPTION OF TEST Test procedure depends on the test system implementation. See next chapter. 7. TEST AUTOMATION Test automation is recommended. The actual test system to be used is not specified here while not harmonized in Nokia. Therefore it is only presumed the test is performed by means of some kind of automated test system. Cpk value calculation is not mandatory. 8. TEST LIMITS See Section 2 DOCUMENTTYPE Janne Aitta 8 (8) 22.01.2006 9. JUSTIFICATION FOR TEST LIMITS Limits are taken from the current WLAN specification (IEEE802.11b-1999), ETSI specification (EN 300 328 V1.6.1) and FCC specification (FCC 15.247). 10. APPROVAL CRITERIA The test is passed if the results are within the defined limits fulfilling specified distribution model. 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 ______ 10.3 Other configuration information to be reported (test case specific): 10.4 Data to be stored: Example results for Cpk measurement data is represented in the excel sheet below: WLAN_TX_Cpk_data _DSSS_CCK.xls Example results for Cpk value table is represented in the excel sheet below: WLAN_TX_Cpk_valu e_DSSS_CCK.xls