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22/5/2013

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2G KPI

•

Rx Qual (from Huawei )

• Rx qual merepresentasikan nilai BER(Tems Investigation)

Range Quality Signal HCPT 212 Percentage HCPT Originating Percentage

0 to 3 Excellent 3677 89.68% 3505 83.25%

4 to 5 Good 312 7.61% 484 11.50%

6 to 7 Poor 111 2.71% 221 5.25%

Total 4100 100.00% 4210 100.00%

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2G KPI

•

Rx Level (Tems Investigation) Rx Level standard

More than -85 dBm (Excellent)

Between -92 dBm and -85 dBm (Good)

Between -105 dBm and -92 dBm (Fair)

Less than -105 dBm (Poor)

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2G KPI

• SQI KPI (from Huawei)

• SQI value (Tems Investigation)

Range SQI HCPT Percentage HCPT Percentage

20 to 30 Excellent 3842 93.91% 3583 88.08%

10 to 20 Good 209 5.11% 382 9.39%

0 to 10 Poor 40 0.98% 103 2.53%

4091 100.00% 4068 100.00%

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 ARFCN(Absolute Radio FrequencyChannel Number)• Merepresentasikan nilai frekuensi tertentu, dibuat untuk mempermudah dalam penyebutan kanal frekuensi pa

• 1 ARFCN terdiri dari satu pasang frekuensi UPLINK dan DOWNLINK.

• ARFCN FORMULA :

For GSM 900Uplink : ARFCN = 0 + (fMHz  – 890)/0.2Downlink : ARFCN = 0 + (fMHz  – 935)/0.2

For GSM 1800Uplink : ARFCN = 511 + (fMHz  – 1710)/0.2Downlink : ARFCN = 511 + (fMHz  – 1805)/0.2

 Example :

For 520 ARFCN, worked at frequency(fMHz)???? :

520 = 511 + (fMHz-1710)/0,2

fMHz = 1711,8 MHz