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# Maximum Ratio Threshold of PDCHs in a ce

Viewing 14 posts - 1 through 14 (of 14 total)
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HW_JUNIOR
Guest

Dear Huawei Experts

There is one parameter in Huawei inner PCU (Maximum Ratio Threshold of PDCHs in a cell)

Its value is in percent (default=30 %)

What does this parameter mean? Is it for static or dynamic data TSs?

HW_JUNIOR
Guest

Dears any comment???

SHELDON
Guest

Hi HW_Junior,

This parameter is used to restrict the percentage of TSs that can be used as PDCHs (both static and dynamic).

Consider a typical 4TRX cell with 1BCCH and 2 SDCCHs. Then:
Total number of TSs that can be used for traffic(voice or data)=4*8 – 3 = 29.

Now, if ur ‘maximum ratio threshold of PDCHs in cell’ is 30 for this cell, then:
Maximum no. of PDCHs = 0.3*29 = 8.7. This means that a maximum of 9 TSs in this cell can be used as PDCHs.

This also means that if you have eg 2 static PDCHs, then you can have a maximum of 7 dynamic PDCHs.

Regards,
SHELDON

HW_JUNIOR
Guest

Hi Sheldon

Thanks for information.
As I know for static TS I should add PDTCH to Channel Type. If I don’t have any PDTCH TS in a cell and Maximum Ratio Threshold of PDCHs is 30 %.
What does it mean in this case?
Is there any static TS in 30% if I have not added PDTCH to TRX.

HW_JUNIOR
Guest

Dear Sheldon

Thanks for understanding

SHELDON
Guest

Hi HW_Junior,

This threshold applies to the sum of all PDCHs, whether static or dynamic.

If you don’t have any static PDCHs (PDTCH TSs) in a cell, then this threshold will only apply to the dynamic PDCHs. That is, a maximum of 30% of TCHs in that cell can be used as dynamic PDCHs.

Regards,
SHELDON

HW_JUNIOR
Guest

Thanks a lot 🙂

nitin
Guest

can anybody explain me ????
how can i improve EDAP congestion

Vinay
Guest

Hello Mr HW_Junior.

In Huawei Maximum Ratio Threshold of PDTCH in a cells we go for only 30%. And we can use this because user can use multi-slot channel when they use the data.

If we go for 30 then it comes around 1.8 that is equal to 1, so if you want to use multi-slot then go for more than 30%. And for maximum conversion we are using different parameter in Huawei.

Md.Mamunul islam
Guest

Whats the activity of this parameter? can anyone answer..

Uplink Multiplex Threshold of Dynamic Channel Conversion

newone
Guest

Hi guys,

if my mobile supports 4 timeslot in downlink and in my cell 4 pdch and if i surfing small application then every time i will get 4 pdch or its depends on application?

is there table in bsc i mean multislot class mobile list?

Omer
Guest

Sheldon is right. You can change the threshold if you want more .

krish
Guest

Hi sheldon,

according to ur example if i have 9 pdch ( which includes 2 static) then on abis level how to define ?

is it is 16 kbps or 64 kbps?

can u plz help how to define pdch on abis whether its static or dynamic?

krish
Guest

hi sheldon,

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