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Member
Reputation: 18
LTE RS power boost
Hi,
Could you support to know the reel Rs power using the below config:
MaxPower=46
Pb=1
Pa=-3
BW=10M
Thanks a lot
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2017-08-17 07:26 PM
# ADS
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Member
Reputation: 172
Re: LTE RS power boost
Reference Signal Power = 18.2dBm
Originally Posted by
oucht79
Hi,
Could you support to know the reel Rs power using the below config:
MaxPower=46
Pb=1
Pa=-3
BW=10M
Thanks a lot
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Member
Reputation: 18
Re: LTE RS power boost
Ok That a lot,
Actually my MaxPower=20W and i want to increase the power from 18.2 to 21.2, is there any issue if put Pa=-6/Pb=3?
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Member
Reputation: 172
Re: LTE RS power boost
not good idea. better play with thresholds or antenna tilt etc.
Originally Posted by
oucht79
Ok That a lot,
Actually my MaxPower=20W and i want to increase the power from 18.2 to 21.2, is there any issue if put Pa=-6/Pb=3?
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Member
Reputation: 205
Re: LTE RS power boost
Originally Posted by
agenov
not good idea. better play with thresholds or antenna tilt etc.
Why is the use of RS Power Boost a bad idea?
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Junior Member
Reputation: 10
Re: LTE RS power boost
Just Change Rs Power to 212 and keep Pb=1 and Pa=-3, Max Power will increase to 40 W (46 dBm)
if you change Pb=3 and Pa=-6 with Rs=212, Max Power will remain 20W (43 dBm), coverage will increase but less power allocation for PDSCH type A
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Senior Member
Reputation: 361
Re: LTE RS power boost
btw please don't forget to consider single / dual carrier in your power calculation
Best people are those who are useful to others
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Re: LTE RS power boost
Originally Posted by
oucht79
Hi,
Could you support to know the reel Rs power using the below config:
MaxPower=46
Pb=1
Pa=-3
BW=10M
Thanks a lot
Hello,
the idea of LTE is to have same power for each RE So the RE power is 80 watts/(Number of RB *12) which in you case will be 21.25 dBm
pa is the power addition and reduction on CRS so you will have 21.25-3=18.25 dBm
pb is the power reduction.addition to Type-B RE (symbols which are including RS)
this is not a good configuration which causes lower RS power and consequently lowercoverage and SINR
if you are using MIMO, it is better consider +3dB power addition in RS power to extend the coverage and better SINR
cheers
Last edited by babak1349; 2017-08-30 at 04:53 PM
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Member
Reputation: 16
Re: LTE RS power boost
Very good explaination. Just to add pa represent those RE's which doesnt have RS symbols. pb are those RE's which contain RS RE's
Originally Posted by
babak1349
Hello,
the idea of LTE is to have same power for each RE So the RE power is 80 watts/(Number of RB *12) which in you case will be 21.25 dBm
pa is the power addition and reduction on CRS so you will have 21.25-3=18.25 dBm
pb is the power reduction.addition to Type-B RE (symbols which are including RS)
this is not a good configuration which causes lower RS power and consequently lowercoverage and SINR
if you are using MIMO, it is better consider +3dB power addition in RS power to extend the coverage and better SINR
cheers
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Re: LTE RS power boost
Originally Posted by
pathloss
Why is the use of RS Power Boost a bad idea?
Huawei CRS
1.PDSCHCfg.ReferenceSignalPwr 18.2 dBm for 20 watt===>Pb
2.PDSCH Other PDSCHCfg.Pb CellDlpcPdschPa.Pa PcOff 1 dB to -3 dB===>Pa
E******* CRS
1.calculated from[SectorEquipmentFunction]configuredOutputPower[EUtranCellFDD] crsGain 40000 to 300 (3 dB)==>Pa
2.[EUtranCellFDD] pdschTypeBgain 1 ===>(Pb)
Nokia
1.CRS power calculated from [LNCEL] pMax[LNCEL] dlRsBoost 430 (20 watt) 1000 (0 dB)===>Pa
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