2G Frequency Issue

[Mirzaatif]

Dears,Recently we did Frequency plan for 2G and take some channels for U900. After FP change in drive test (Idle, Dedicated) still we can see ARFCN in neighbor with good levels which already taken for U900.If we lock that ARFCN UE goes in no service mode. Kindly suggest where is mistake possibilities.

[mohsenJaz]

Which type of frequency hopping is used in your network?

[justdream]

After FP change in drive test (Idle, Dedicated) still we can see ARFCN in neighbor with good levels which already taken for U900.If we lock that ARFCN UE goes in no service mode. Kindly suggest where is mistake possibilities.Audit all 2G TRX frequencies and check do you still have U900 ARFCN assigned to GSM?

[slava121]

Hi, Mirzaatif!What is your problem, you can further explain.I made a frequency plan for GSM900 / 1800, UMTS900 / 2100.On a dedicated band to a telecom operator in the GSM900 / 1800 rangeused synthesized hopping. MAL LIST, MAIO and others were created.I can help you.
Dears,Recently we did Frequency plan for 2G and take some channels for U900. After FP change in drive test (Idle, Dedicated) still we can see ARFCN in neighbor with good levels which already taken for U900.If we lock that ARFCN UE goes in no service mode. Kindly suggest where is mistake possibilities.

[Mirzaatif]

Its set as default, Hopping Channel: Yes

[mohsenJaz]

I think your problem is this: you’re using rf hopping. You’ve changed the TRX frequencies but didn’t update the MAL lists. If it’s not your case, please let us know more details and we can help you.
Its set as default, Hopping Channel: Yes