GSM Mobile Phone Test BasicsGSM Mobile Phone Test Basics Rohde & Schwarz (China) Shenzhen Representative Office Application Engineer: Su MinshengSu Minsheng, July 2006GSM Test BasicsGSM Mobile Station Test v Chapter 1 GSM Mobile Station Test Principles v Chapter 2 Six Test Items―CMU2001 Su Minsheng, July 2006GSM Test Basics Chapter 1 GSM Mobile Station Test Principles v Test Principles (Strive for a balance between two elements, overall performance): 1) Maintain high call quality in different environments. 2) Do not interfere with other users, GSM channels, and other spectrum resources. 1 Su Minsheng, July 2006 GSM Test Fundamentals Chapter 2 Six GSM Test Items v Power measurement v Modulation quality measurement v Power ramp measurement v Spectrum measurement v Receiver sensitivity measurement (BER) v MS measurement report 1 Su Minsheng, July 2006 GSM Test Fundamentals Chapter 2 Six GSM Test Items v 1. TX: Power measurement (Power vs Time, Power vs PCL) PCL: Power Control Level Test Purpose: To measure the transmit power of the mobile phone at different PCLs within the allowable range of the specification. 1 Su Minsheng, July 2006 GSM Test Basics Power Control Level (PCL) of GSM900 0-2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 Su Minsheng, July 2006 Reference Level 39 dBm 37 dBm 35 dBm 33 dBm 31 dBm 29 dBm 27 dBm 25 dBm 23 dBm 21 dBm 19 dBm 17 dBm 15 dBm 13 dBm 11 dBm 9 dBm 7 dBm 5 dBm GSM Test Basics Power Class 1 ± 2 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ± 3 dB ……
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