直放站培训教材

-----GSM/CDMA1.1.2.2.3.3.4.4.5.5.6.6.77.GSM8.1.GSM2.GSM13.GSM2CDMA31.CDMA42.CDMA53.CDMA64.CDMA75.CDMA86.CDMA97.CDMA8.CDMA900MHzGSM19.CDMACDMA2800MHzCDMA()341-----1.IP3-36dBm(NF)2.(1)---GSMCDMA---------(2)¾GSMGSM2-----GSMGSM900MHz/1800MHz¾CDMACDMACDMACDMA(CDMACDMA)()CDMACDMACDMA¾GSM/CDMA20Km3-----3.(1)(2)(3)(4)(5)4.1¾4-----1¾CDMA105/10¾10/20(2)GSMCDMA¾¾¾¾5-----¾¾()14km55m3116dBi-100dBm35km810km56km-90-95dBm30m20dB500800mL4km6km6-----3km5km32.45+20logf(MHz)+20logD(km)6dB12kmA-95dBm17kmB-97kmA300m-70dBmA25dB6dBA600m6dB1200m12dB4.8km24dBB-95-100dBm3ABAB300m25dB7-----10km5.(1)GSMCDMA510-8(2)-60-80dBm10dBAGC(3)8------3dB3dB-3dB3dBp-p-60-40dB-3dB1.66(4)GSMYD/T883-1999ETS300609CDMAYD/T1047-2000(5)CDMARhoCDMA(6)1s5s10s(7)46dB(8)1.41.5(9)9-----(10)(11)AMPSTACSCDMACDMA800MHzCDMA10MHzCDMACDMACDMA283+43dBm+3338dBm+30dBm-95dBm30m-65-70dBm-50-55dBm80dB+2530dBm80dB10-----CDMA+15dBm-95-100dBm+23dBm+23dBm25kg50mDOSMODEMRS2326.11-----(1)AGCLoutdBmLindBmGmax=Lout-LindB1LindBmLindBmLoutLout1dB0.5dBAGC=Lin-LindB2LinLout+LoutLinLout-LoutLindBmLoutmindBmG=Lout-LoutmindB3(2)37Lin-3dBLin(3)12-----¾12f1Lin10dB2f13f1......CWf1f22f1-f2/2f2-f1f1f2GSM10dBCDMALin¾GSMCDMALindBm9kHz12.75GHz(4)CDMACDMARhoGCDMALinRhoACDMARho=RhoG-RhoA4(5)¾50kHzCH2CH113-----CH2CH1(6)/(7)GSM¾Ph(mWW)PcmWWENRdBNF=ENR-10lgY-157110km4km80%14-----50%2LNM34123dB3456CDMA,21115-----CDMAGSMCDMACDMA1CDMAGSMGSMCDMAGSMGSMGSMGSM,GSM---GSM---GSM---GSM1.GSM(1)GSM2-116-----2-1GSM(2)/ALC(3):GSM(4)GSM2-217-----2-2GSM2.GSM(1)GSM2-32-3GSM(2)/18-----PLLALC3.GSM(1)GSM2-42-4GSM(2)PLLALC19-----CDMACDMACDMACDMA(CDMACDMA)()CDMACDMACDMACDMACDMACDMACDMA()CDMA3-1CDMA3-1CDMA1.CDMACDMA20-----,GPLL2.CDMA3.CDMAAC220V825-840MHz870-885MHz65-40dBm1.5dB30dB21-----50ohm26dB1.5()1.35()2s-30-505-90%4.CDMA5-2CDMA5-2CDMA5.CDMACDMA(1)10MHz870-880MHz825-835MHz1.23MHz(2)CDMA1/5/10/2010/201/2/51022-----(3)/(4)6.CDMACDMACDMA(1)(2)CDMA3(3)CDMA(4)(5)CDMA45MHz23-----(6)(7)(8)7.CDMA1CDMA2CDMA348.CDMA900MHzGSMCDMAGSMCDMAGSMCDMA880MHzGSM890MHz(1)24-----CDMAGSM/IMP3IMPCDMA890MHzGSMGSMGSMCDMAGSMCDMAGSMGSMGSM-104dBm9dBGSMCDMA80dB100dB15mRFCDMA37dBm(5WCDMA),870MHz880MHz,60dB800MHzCDMA870MHz880MHzf1.98MHz:-65dBc/30kHz1.23MHz65dB133800MHzCDMACDMA869MHz894MHz,CDMA25-----894MHz4MHzCDMACDMA870MHz880MHz870MHz880MHz,60dBCDMA890MHz(2)10dBIMP310dB1dB5dB*CDMA376528dBm/30KHz*GSM104910123dBm*CDMA890MHz286088dBm*8810lg(200/30)(123)43dBIso28.040lg10(d/)d2.4mIso2220lg10(d/)(GREPEATERTXGGSMRX)d11m890MHz909MHzCDMAGSM909MHz915MHz,CDMACDMAGSM9.CDMACDMACDMACDMA(1)26-----CDMACDMA2.1dB13CDMACDMACDMA(2)CDMACDMAEb/No=PG/(V*(N-1)*(1+Iother/Iself))N=1+PG/(V*Eb/No(1+Iother/Iself))PG=21dBCDMAV0.4IotherIselfEb/No=10dB---Iother/Iself=0N=32.5---CDMA27--------Iother/Iself=0---a.Iother/Iselfb.Iother/Iself12-62-3(3)5dB10020602130102104011.544GSM/CDMA28-----1.12GSM80dBm20,,(3),CDMA(4)GSMCDMA(5)50Km(6)(7)2.(1)29-----(2)1.3m1.55m(3)3.4-1(RF)RF4-14-230-----4-2(935MHz-960MHz)1.55&1.31m(1.31m)1.31m1.55m1.55m(935MHz-960MHz)(890MHz-915MHz)4.---31-----G.6521.55mG.6521.3m/1.55m3dBm(1.3m)0dBm(1.55m)PinAPC/FC,PC/FC---800MHz-1000MHz-20dBm-20dBm--60dBm50SMA---24dBCH81624324048dBm-30-28.5-27.6-27-26.5-26.1AGC20dB10dB890MHz-960MHz0.5dB800MHz-890MHz0.5dB-20dBm-20dBm--60dBm-38dBc5dB-126dBm/CH501.55.4-332-----4-36.()SM=SG-SL(1)SG=Pt+Gt+Gr-Pmin(2)SL=La+Lt+Lr(3)Pmin=Pr+d(4)SM(dB)SG(dB)SL(dB)Pt(dBW)Gt(dB)Gr:(dB)33-----dPmin(dBm)La(dB)Lt:(dB)Lr(dB)Pr25---Lbs32.45+20lpD(km)+20lgf(MHz)(5)---LttLbs+Am(f,d)-Hb(hb,d)-Hm(hm,f)(6)Am(f,d)Hb(hb,d)Hm(hm,f)An(f,d)Hb(hb,d)Hm(hm,f)34-----850km(5km)20m30mSDY-50-22(0.05dBm)40m,5km501W(0dBW)10dB(A)-110dBm(0.7V)50SM0(1)SGSL(7)PrA-101gR-126(8)Pt1W0dBWGt10dBGr2dBA0.7VLt1.56dBLr0.5dBd6dB((2))R50(2)-(4)(7)(8)SGPt+Gt+Gr-Pmin152dBW(9)(9)(3)LaSL-Lt-Lr149.94dB(10)335-----Am(fd)Am(900MHz5km)26.5dB(11)5Hb(hbd)Hb(50m5km)-10.5dB(12)4Hm(hmf)Hm(2m900MHz)-2dB(13)(5)(6)(11)(12)(13)LttLbs+Am(900MHz5km)-Hb(50m5km)-Hm(2m900MHz)32.45+20lgD+20lg900+3971.45+20lgD+20lg900(14)LaLtt(10)(14)D9.3km9.3km507.(1)GSMTDMA88MSBTSGSMMS0233S70GSM835km2/31.5S20km1.55m0dBm;-26dBm;(AGC)20dB10dB0.35dBkm0.1dB0.3dB7dB(36-----)50km:L=++=0.3550+0.12+0.3218.3db=--OdB-18.3dB-(-26)dB7.7dB7dB50km(2)GSMa.N10Lg[KTB]KTBNfbts2dBNpbtsNpbts=10Lg[KTB]Nfbts=-121dBm/Hz2dB119dBmb.Np'repNNfrepGrep,Np'rep=10Lg[KTB]NfrepGrep,Lp37-----NprepNprep=Np'rep-Lp=10Lg[KTB]NfrepGrep-Lp=-121NfrepGrep-Lp(1)(NP)totalNbtsNrep(NP)total=10Lg[10Npbts+10Nprep]=NPbts+10Lg[1+10Nfrep-Nfbts+Grep-Lp]10Lg[1+10Nfrep-Nfbts+Grep-Lp]=Nbts(2)(NP)total=Npbts+NbtsNbts2Nfrep-Nfbts+Grep-Lp0Nbts3dBNfrep-Nfbts+Grep-LpNbts0.97dB0.97dBNfbts2dB(1)Nprep125dBmNfbts2dBNfrep4dBGrepLp8dB1dBLp8dB0dBm40dB30dBNPtotal=10lg[10NPBTS+?0(Nprep)]NprepinNbtsdB38-----Nbtsnp'rep125dBmp'rep-125-10LgnnG'repGrep10LgnG'repn1dBc.PoNfPmNfmPm33dBm6dB4dBPoPo=33+6-4=35dBm8.12(1)39-----a.90dBmb.11321(2)78352010dBmGSMGSM140-----OkumuraOkumraLm=69.55+26.16lgf-13.82log(hb)-a(hm)+[449.9-6.51log(hb)]log(d)f=870MHzLm=146.4-13.8log(hb)-a(hm)+[44.9-6.5log(hb)log(d)]:a(hm)a(hm)=2.53hm-3.8;a(hm)=3.2[lg(11.75km)]12-4.97hmhm=1.5m,a(hm)=0Lm2-85dBm-95dBm-75dBm-85dBm41-----