how to increase node b capacity?

[arisondang]

There are 4 capacity resource in Node B
1. RF Capacity --> Power and Code
2. Baseband Capacity --> CE
3. Transport Capacity --> Iub
4. for HSDPA, you have HSDPA User Number Capacity..


CE is only one capacity resource in 3G

Thanks

[_lisi4king]

There are 4 capacity resource in Node B
1. RF Capacity --> Power and Code
2. Baseband Capacity --> CE
3. Transport Capacity --> Iub
4. for HSDPA, you have HSDPA User Number Capacity..


CE is only one capacity resource in 3G

Thanks

What about power and code capacity?

[arisondang]

What about power and code capacity?

Power Capacity :
If your PA is possible to be upgraded, then increase the PA, huawei WRFU/MRFU can be up to 80 W per PA Module,
If not, splitting Cell or 2nd Carrier is the solution.

Code Capacity :
Code cannot be upgraded, you have to add more CC (Cell Carrier) with splitting Cell or 2nd Carrier.
But you have another solution instead of them :
1. If many HSDPA User compared than R99 User --> add HSDPA Code
2. If you have only 1 Carrier --> Using Dynamic Code Allocation
3. Disable some of unnecessary PS RAB (ie, disable PS 256 or 384)


Thanks

[_lisi4king]

Power Capacity :
If your PA is possible to be upgraded, then increase the PA, huawei WRFU/MRFU can be up to 80 W per PA Module,
If not, splitting Cell or 2nd Carrier is the solution.

Code Capacity :
Code cannot be upgraded, you have to add more CC (Cell Carrier) with splitting Cell or 2nd Carrier.
But you have another solution instead of them :
1. If many HSDPA User compared than R99 User --> add HSDPA Code
2. If you have only 1 Carrier --> Using Dynamic Code Allocation
3. Disable some of unnecessary PS RAB (ie, disable PS 256 or 384)


Thanks

Can you describe more detail about Disable some of unnecessary PS RAB (ie, disable PS 256 or 384)

If i disable some RAB's how i will save codes? Does system reserve codes for all RAB's, which enabled in the system?

[arisondang]

Can you describe more detail about Disable some of unnecessary PS RAB (ie, disable PS 256 or 384)

If i disable some RAB's how i will save codes? Does system reserve codes for all RAB's, which enabled in the system?

Each RAB (CS12.2/CS64/PS64/128/256/384) has code allocation in OVSF Code Tree called as Spreading Factor (SF)

CS 12.2 use SF 128
CS/PS 64 use SF 32
PS 128 use SF 16
PS 256 use SF 8
PS 384 use SF 8

1 SF8= 2xSF16=4xSF32=16xSF128
If you know about code clashes, then
1 PS 384 user occupation = 16 CS AMR users occupation,
meaning that 16 CS AMR code cannot be used due to 1 PS 384 user.

So,
If you disable PS384, you give more space for other RABs..

Thanks

[agenov]

Each RAB (CS12.2/CS64/PS64/128/256/384) has code allocation in OVSF Code Tree called as Spreading Factor (SF)
So,
If you disable PS384, you give more space for other RABs..

Thanks

Which is the command/parameter? Can u do that at cell level only?

BR

[arisondang]

Which is the command/parameter? Can u do that at cell level only?

BR

Hahaha...
i dont have any idea for this..
I am RF Planner,
let me ask my team and let u know later...

Thanks

[agenov]

Hahaha...
i dont have any idea for this..
I am RF Planner,
let me ask my team and let u know later...

Thanks

i have doubts about all this but let's see what your findings are ...

BR

[arisondang]

i have doubts about all this but let's see what your findings are ...

BR

i have found the parameter :
TYPRABBASIC in RNC Parameter

you can use LST TYPRAB,
change/delete RABINDEX which has MAXBITRATE=384000 (if you want to delete PS384)

Thanks

[_lisi4king]

Each RAB (CS12.2/CS64/PS64/128/256/384) has code allocation in OVSF Code Tree called as Spreading Factor (SF)
.
.
.
So,
If you disable PS384, you give more space for other RABs..

Thanks

It not a sollution for me. In our counrty 3 UMTS operator, and if will decrease throughput, subsrubers will move to another operator. It is better to decrease number of users (tilt, CIPICH power), but for the rest - provide good service!