5G下行速率偏低问题排查优化方法.docx
5G下行速率偏低问题排查优化方法案例上报省份：福建案例上报人：林凤城13506030588一、关键词:速率排查、AMBR二、案例分类1 .问题分类：网络性能类2 .手段分类：参数调整三、优化背景福建移动5G实验网进行高通商用终端束速率测试四、问题现象某站点进行峰值速率测试中，从PDN侧下行灌包IGbps,而CPE侧只测到了250MbpsO五、原因分析1、确认现场测试环境无线环境正常;现场核查以下指标：SSB-RSRP和CSI-RSRPSSB-SINR和CSITINR上下行MC±下行BLER,均无异常。如下所示，RSRP：-8ldbm,bler:0%o».V1I '>、oc Qm kVANALYSEHNR5GMAC H/AMAl VSRI g，'乂4 GMAC WANAtva5H(9hNRxiMAC H/AMAl EXShmRSGMl 1 WAMALVSB(MQSH “ANAlYaMT9ZNRSGMAC KAMAt WSA m,MR5GMC一 二'J J 'fw59BmK.rnr2.r n32.r n5gjnc.r.flMtfk.Kc6期 NOGMAC Ul IhI 1900 ms CAJD: 0 INo PUSCH 9tMtf TPUT .mtnc.< 7211 NR5OUC (H. b0 1900 rm CA.H> O INO POSCH 9r9t TPVTin(59_m»c.rncm.rMimrwry430n*'C<<t pr4ms: dr NR5GUUl mode 1 C4t.mUc (Ml reset 07»1NOGMAC ! RACH 19» nw CB RACH cm/MCeed c 0.0 CB Free RACH cnt/succeed < QQ MSGl tc cm WR ey ent O RAR oot <4 vwn Cf 751 NtSGMll MLl Ut 1900 rm CAJO 0 (Tx b*n 滋 IlTg wtkh ent (VD Av9 FTL 3513 IOPPE F -2664060 hCs RSKP: 41 dBHCut ANAiYSMJl mxe< pw½: ckwt N«02Uu le IIeMJnMiC 0d res<t 0.2k.Kc6T0 NOGMAC IUliM« 190Orral CAJt> O a PUSCH 9E TPVl .mctnc.qshc 721烟GMAC Ol lst 190C rm SiO O INO POSCH .E TPVT现MaGMAC 1 RAeH 1900 rm 8 RACH WWAIVSK-HNR5GMACMA1VSK4.NR56M11 4AIV1K1omQSH(<sjfwoke>c n9-mc.mtfk.c (n<m"m<tnc-c (n«59.m*c.mcftiM.c (nf5g-mc.m<tnc.c'<eedg QQ 1 MSGI t< 6t0hNR5GMACn¾*NR5Gi1ACqib_<wo*e.c3VavHI9»VNwGMACWYSKHNR56MU MAivasagJQSHnt59.nMCewtf*c .c (n6t,mc.m<tnc.c (nt9-m.m<tfk.c(rw5g,m»c.r.Mfk.h(CVCfcec198AULYC «432 ¼ce< pf*<ns: ckerc NfrGUUll mode 1 cat,mUc (Ml reset 0 «J0 MSGMAC I Ul UM )900 rm I CAJR 0 INO PUSCH 9r<nl TPUT721J NWGMAC I Ol tort 1900 mt I CA,K> 0 INo POKH 0四 TPVT7»J NR5GMAC RACH 1900 ms CB RACH E&x«eed g。内 CB FfM RACH EZaKCeed St 0.0 j MSGl t* CfM SR ap«y SolRAR 8t of wn 0 751 NRSGMU MU Urt 1900 E CAJO 0 (TX b««m id i T b*«m MiCh ent (W> Avg FTb 3513 10ppm g *266C8M69 hC( -ti d8MCu ANALV1B HJ3 ImMe PMam$: clM NR5Gl mode I cwm*sk 0l rrt 0 670 NR5GMAC IuI 皿 IXOrml CAJDt 0 (No PUSCH 9tst TPUT721) NWGMAC I Ot tort 1900 rm I CAJfX 0 INO POKH 伊E TPUT7» NR5GMAC RACH 1900 ms CB RACH WKCeed g 0，。 CB Fttt RACH cM/succwd g 0.0 MSGI t* CntO RAR e>wy 0e 0 RAR <x4 of win cr 71) NR%Mll I MU IMt 1900 rm CAJo 0 (Tm bm id 1 (Ta0 b*m vwtkh E 0> Avg FTL 35B IoPaE *9 V -266OW bfCurr RSMh 41 d8mCufxqCount!9Tineacasp:201V051513!3<219.89(0xe7S5628fl67M)LIaeXOers751ClientD!76BafferXDiLevel!2Foixat:SRSGKL1MLl1sz1900SfldDI0ITxZaKld1TxRxbeanswiccnc0/01AvgFTLi3513IQPBHAvqTTLi266480"9tsCurxRSRPi-l<1BdlFXleV3inrSg.jMCjKcricqsb.cCliencXaoe:XR5GKL1Tag;PRF中h.U4198 ANALYSIS <56 KkMt pMrm: Ctenfc NRSGUlAl mode 1 Kal.iz# Odl rwfc 0 wS9aQulsq<h.cv5aQul.qth.ctv$_Qul.qth.ciw5Qul.qth.ccri2dl.h.ctC.dl.qth<rGsdl.qi.crC.dl.qh.cEQ.dLqthcEQ.dl.qth<rCadl.qh.c1172NR5GL2lLMt1900rm!PA->l2U18KbE窃*0Kbt)RLC>MAG19KbPilPM(t4170KbfHlPHY:001KbPq12bufVtfdetay:2mtAv9RlCRn2192ImTPUTIMlINR5G12UIIUa1900rmRLCMu:%AayNACKnNvIDctfo«UL3QVD.TxACVNAoySgtrfotDl:22/0QIPln1367NRSG121ASUIRBidc3RLCMtSNnolACK:15070150XRLCrt>:6699byte吨PntHCOUNT:150742Utrevdtone(FA->UpkViaCPOU/RLCSutUVGe闺：44/4113831NR5Q21SUK61ESU)%IUT>bytG344JODtuafdedPiVb)<«:MIsMDNE4。Pfxd<f>Vb><M:MTPI9网NRSGliDlIL>tf1900n¼pt为PHYl1015KbptKMAq14KgiLCUKbtWoCpI12KbptIXlPAjUKbpt9iPA12KbKHOCP12KbPi9V>A12KgiIAPTPU987)NR5GUDlLMt1fmDl4gPHY:1Kbpt49RIXM9PDCP：0KbPS4A->4DCP:12Kbpt4gP0CP“#A12Kbps49>A>AP:12KWTPVT11NRSGu(XIUa1900mtMACPad:1001KbptIUPPdrop:0KbpiSDCPdrop:0Kbpt(FC0Kbs)4gPDCPaopc0Kbpt(K0Kbpt)4tc<df¥049V,A<pbIOSyNR5GL2(XNRPDCPmnbytM:OfPDCPFCpH/bytevMPApw*dmgPHcnV¼tet:00fCtf1PDUfromLTfc10586fUfdtfSutu:0DSM1085NR5GL2(MLTEDropfolOOW：0bytrNROOW:120WTFG0byttfPAe3IP:WTPUT1128NRSGU(MStMeR8dc3RlCAtoVMH，gh：23382V23382SRLCtoUMACK<nft:ZwPDCPn>V<M1M4S1M4Sr<e<dbCAt:0UftDlKtMtyZSUtusMnfcM/46(mH40INR5GU(MSlMtRLCBUItO%M×Cnt2100tK4r<McrC»ForceMiECwd<K0TPUTTB:1313 b>U RBa笫 I AVg PHR de ¾4 A2、确认测试小区无线环境参数无异常;现场确认小区基本配置参数，无异常，主要参数有：小区RE参考功率PSS功率偏移256QAM功能上下行传输模式小区带宽等，无异常。aSMlMOO<>C上Efi由GAbdrEMBU<U(X>V121M刀用ItaDMaicSkeSMwCmwBNRCeIDUHFfwwvWM2maoWc<XSCSSceokanwCMJRmiUIAncOUtacAMM(Bw3、确认现场测试终端连接正常。4、检查基站收包是否正常。在灌包的情况下，进入dps容器，Pad管理进程，输入查询命令：bsp_show_net_rate0从查询结果倒数第三行的TX参数值可以看出，基站收包正常，可以达到1Gbps；5、怀疑核心网HSS用户签约信息AMBR参数值等设置有问题，连接DSP监控工具，从基站侧看到核心网配置的下行UE-AMBR值为256Mbps；r核心魔掌乃SMbPSstructCatcKrclIlConfxcexI1Intd«c日,ueAbr(IstructUreV<AbrItXunsignedlo%lg,cmspedUtDlLchFrestntintdec4UtDlLchLst(IIlructUrcVtDlLehLixt<x§UeRe
