UE Throughput in LTE Huawei

[ivanbrij]

Dear Experts,

Could you share information about MO/parameters (related to transport and radio) than can be monitored or modified at eNodeB Huawei in order to improve user throughput in LTE

Thanks in advance,

Ivan

[gunpowder]

you have problem in UL or DL ?

[ivanbrij]

The problem I want to check is in DL

[mankhan]

Have you got DRX enabled on the cell ?

[ivanbrij]

Hello,

DRX switch is OFF, Short-cycle DRX switch is ON.


BR,

Ivan

[gunpowder]

i think you must enable DRX switch to activate short cycle DRX (first DRX cycle always long) //Huawei

[ivanbrij]

DRX is for uE power saving. how DRX switch ON could improve LTE DL throughput?

[giegala]

Hi Ivan,

DRX will not improve your DL throughput. What gunpowder wanted to say, is that short DRX will not work, if you do not have long DRX enabled. Based on your setting, your network is not using DRX at all.

You have to check following things to understand throughput:
1. Size of control area - PCFICH value - 1,2 or 3 symbols - smaller is better
2. amount of RB (resource blocks) being allocated for UE - if there is single user in the cell it should be close 100%
3. CQI and MCS - CQI should be close to it max value (15). MCS - the max value is 28. (MCS29-31 are used for retransmissions)
4. RI (rank indicator) - should be 2 in order to use Spatial multiplexing (dual-stream) MIMO
5. you should expect HARQ retransmission (first retransmission/intial transmission) to be about 10% - the optimum value for HARQ.

So achieved throughput on radio interface would be proportional to:
RI x MCS x #RB

it is not taking into account transport and Core Network - there might be bottlenecks heavily limiting radio interface performance

Cheers

[Handover24]

are you able to log the Ue that is having problem or just colunter are not good ?