3DMIMO等功率配置计算工具V1.0.xlsx
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MML导频功率计算
| 说明：仅黄色框为输入框。 | |||||||||||||||
| Environment Config | Value | Units | Description | PB | 1 ant pb/pa | 2/4 ant pb/pa | |||||||||
| RB Num | 100 | RBs | Total RB number(e.g 100 for 20MHz) | 0 | 1 | 1.25 | |||||||||
| PA | -3 | dB | ρa=PA+10lg2(Transmit diversity)/ρa=PA(Other situation） | 1 | 0.8 | 1 | |||||||||
| PB | 1 | PB=ρb/ρa | 2 | 0.6 | 0.75 | ||||||||||
| 4Tx Diversity | 3DMIM默认FALSE | 4 antenna Transmit diversity or not. | 3 | 0.4 | 0.5 | ||||||||||
| CRS Port Num | 2 | 3DMIM默认2 | CRS port number | Current | |||||||||||
| ρa | dB | ρa = EA/ERS. | |||||||||||||
| ρb | dB | ρb= EB/ERS. | |||||||||||||
| RRU发射通道数 | 64 | 当前3DMIMO为64通道 | |||||||||||||
| LTE_MML配置值计算 | RRU发射总功率计算 | LTE系统带宽 | RB Num | ||||||||||||
| Tx total Power-> RS Power | Value | Units | RS Power -> Tx total Power | Value | Units | 20M | 100 | ||||||||
| 期望配置总发射功率 | 80 | W | MML配置值（Rs Power） | 31 | 0.1dBm | 15M | 75 | ||||||||
| 单通道Max Power | W | Power(symbol without RS) | W | 10M | 50 | ||||||||||
| RsPower(symbol without RS) | 0.1dBm | Power(symbol with RS) | W | 5M | 25 | ||||||||||
| RsPower(symbol with RS) | 0.1dBm | 发射总功率 | W | 3M | 15 | ||||||||||
| MML配置值 | 0.1dBm | 1.4M | 6 | ||||||||||||
| NR_MML配置值计算 | AAU发射总功率计算 | ||||||||||||||
| Tx total Power-> RS Power | Value | Units | RS Power -> Tx total Power | Value | Units | ||||||||||
| 期望配置总发射功率 | 160 | W | MML配置值（Rs Power） | 339 | 0.1dBm | ||||||||||
| MML配置值 | 0.1dBm | 发射总功率 | W | ||||||||||||
描述
| 3GPP 36.211 Figures 6.10.1.2 describes the RS signal distribution on PDSCH in One/Two/Fore antenna port situation. | |||||||||||||||
| TypeA RE: REs without RS signals on the same symbol.(e.g. i=1) | |||||||||||||||
| TypeB RE: REs with RS singals on the same symbol.(e.g. i=0) | |||||||||||||||
| RE distribution in one PDSCH RB | |||||||||||||||
| One antenna port: | |||||||||||||||
| 2 RS + 10 TypeB RE on the symbol with RS. | |||||||||||||||
| 12 TypeA RE on the symbol without RS. | |||||||||||||||
| Two/Four antenna port: | |||||||||||||||
| 2 RS + 8 TypeB RE on the symbol with RS. | |||||||||||||||
| 12 TypeA RE on the symbol without RS. | |||||||||||||||
| Defines | |||||||||||||||
| EA(mW): The RE power of TypeA RE. | |||||||||||||||
| EB(mW): The RE power of TypeB RE. | |||||||||||||||
| ERS(mW): The RE power of RS signals. | |||||||||||||||
| ERS(mW) = 10^(RS(dBm)/10) | |||||||||||||||
| 3GPP 36.213 chapter 5.2 Downlink power allocation describes the relations of EA\EB\RES. | |||||||||||||||
| As the defination: | |||||||||||||||
| ρa(mW) = EA/ERS. | |||||||||||||||
| ρb(mW) = EB/ERS. | |||||||||||||||
| So, If we know ρa ρb and ERS, we can calculate EA and EB | |||||||||||||||
| In non MUMIMO mode the is 0, so: | |||||||||||||||
| ρa(dB) = PA + 10log(2) (Transmit diversity) | |||||||||||||||
| ρa(dB) = PA (Other situations) | |||||||||||||||
| And ρb/ρa is decided by the PB and antenna port number. | |||||||||||||||
| It is defined in the table 5.2-1 of 3GPP 36.213. | |||||||||||||||
| ρb(dB) = ρa * (ρb/ρa) | |||||||||||||||
| As shown above, the EA, EB can be calculated : | Tx total power on symbol without RS signals | ||||||||||||||
| EA(mW)= 10^((RS(dBm)+ρa(dBm))/10) | Power(mW) = 10^((RS(dBm)+ρa(dB))/10)*12*RBNUM | ||||||||||||||
| EB(mW)= 10^((RS(dBm)+ρb(dBm))/10) | Tx total power on symbol with RS signals (one antenna) | ||||||||||||||
| ERS(mW) = 10^(RS(dBm)/10) | Power(mW) = (10^(RS(dBm)/10)*2+10^((RS(dBm)+ρb(dB))/10)*10)*RBNUM | ||||||||||||||
| Tx total power on symbol with RS signals (two/four antenna) |
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