诺西HSPA解决方案-NSN_HSPA_Solution

CompanyConfidentialNSNHSPASolutionandRoadmapCreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide2HSPA商用进展HSPA商用进展HSPA技术与演进HSPA技术与演进诺基亚西门子公司解决方案诺基亚西门子公司解决方案CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide3WCDMA/HSDPA网络的商用情况91个国家210个WCDMA商用网络80个国家188HSDPA网络80个供应商403种HSDPA终端CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide4HSDPA技术使网络流量剧增1000GByte/network/day2000GByte/network/day3000GByte/network/day4000GByte/network/dayWekeepimprovingnetworkqualitywhiledatavolumesaregrowingCreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide5HSPA商用进展HSPA商用进展HSPA技术与演进HSPA技术与演进诺基亚西门子公司解决方案诺基亚西门子公司解决方案CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide6HSPAEvolutionRelease7¨Release83GPPR63GPPR63GPPR73GPPR7?HSUPA5.76Mbps?MBMS?Continuouspacketconnectivity?L2optimization?MIMO?64QAMHSDPA?16QAMHSUPA?HighspeedFACH?Flatarchitecture?MBMSevolution3GPPR53GPPR5?HSDPA14Mbps3GPPR83GPPR8?CSvoiceoverHSPA?HighspeedRACH?EnhancedUEDRX?UplinkL2optimization?SynchronousE-DCH?FlatarchitectureoptimizationHSDPA+HSUPAHSPAevolutionLTE¡¡CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide7HSPA功能由基站实现?HSDPA=HighSpeedDownlinkPacketAccess（高速下行分组接入）?HSUPA=HighSpeedUplinkPacketAccess（高速上行分组接入）?HSPA=HSDPA+HSUPAHSDPAHSUPA移动台基站无线网络控制器RNCHSPA业务主要在基站中进行调度和重发HSPA业务主要在基站中进行调度和重发WCDMAR99业务主要在RNC中进行调度和重发WCDMAR99业务主要在RNC中进行调度和重发WCDMAR99上行/下行CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide8ModulationModulationQPSKQPSKCodingrateCodingrate1/41/42/42/43/43/45codes5codes10codes10codes15codes15codes600kbps600kbps1.2Mbps1.2Mbps1.8Mbps1.8Mbps1.2Mbps1.2Mbps2.4Mbps2.4Mbps3.6Mbps3.6Mbps1.8Mbps1.8Mbps3.6Mbps3.6Mbps5.4Mbps5.4Mbps16QAM16QAM4/44/42.4Mbps2.4Mbps4.8Mbps4.8Mbps7.2Mbps7.2Mbps2/42/43/43/44/44/42.4Mbps2.4Mbps4.8Mbps4.8Mbps7.2Mbps7.2Mbps3.6Mbps3.6Mbps7.2Mbps7.2Mbps10.8Mbps10.8Mbps4.8Mbps4.8Mbps9.6Mbps9.6Mbps14.4Mbps14.4MbpsHSDPA原理提高频谱效率和小区吞吐量提高频谱效率和小区吞吐量HSDPA基站快速调度自适应调制与编码混合重传CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide9HSUPA技术原理技术能力增强的专用信道技术！CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide10HSDPA协议模型TNLMAC-dDCHFPDCHFPMAC-dTNLNodeBIubRNCRLCRLCMAC-hsPHYPHYTNLMAC-dMAC-hsHS-DSCHFPHS-DSCHFPMAC-dTNLUEUuNodeBIubRNCRLCRLCMAC-dflowHS-DSCHPHYPHYUEUuDCHDPCHHS-PDSCHR99R5CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide11HSDPA关键技术在时域(2ms)和码域(15个平行码)进行快速调度减少了反应时间并提高了峰值速率；自适应调制和编码(QPSK和16QAM)提供高数据速率并优化了频谱效率；混合自动重传HARQ提供更高的传输效率和纠错性能。NodeBRel.99NodeBw/HSDPADCH-ADCH-BDCH-C多个UE之间共享快速通道每个UE分配一个专用通道调度A,B,CCreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide12HSDPA关键技术:快速自适应调度该机制可用于决定哪个用户可在给定的传送时间间隔进行发送；把最好信道条件的无线资源动态分配给UE；保证以最好的信道条件服务于UE：▪NodeB吞吐率最大化▪UE高峰值速率▪有效利用信道化编码资源信道质量时间CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide13HSDPA关键技术:自适应调制?Rel¡99使用QPSK调制技术?HSDPA使用QPSK和16-QAM两种调制技术QPSK16QAMRel99:QPSKRel5:16-QAM信道比特率:480kbps(SF16)信道比特率:960kbps(SF16)CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide14HSDPA关键技术:混合自动重传(H-ARQ)?保存接收到的数据，重传时，将重传的数据和保存数据进行合并以提高增益；合并方式：Chase合并每次重传与原传输的内容一样在终端处提供最大的合并比率终端实现较简单与普通ARQ相比性能更好增量冗余每次重传包含不同的增量冗余信息在终端进行码合并提高合并增益相比chase合并性能更好终端实现较复杂CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide15HSDPA重传服务器RNCNode-BUERLC重传TCP重传MAC-hsLayer-1重传IuB流控TCP层重传.(incl.slowstarteffect)RLC重传时延~150msL1重传时延~10ms将L1重传技术引入HSDPA以减少重传的时延CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide16HSDPA关键技术:HSDPA物理信道?HighSpeedDedicatedPhysicalControlChannel?即高速专用物理控制信道?SF=256?携带H-ARQACK/NACK,信道质量信息(CQI)HighSpeedPhysicalDownlinkSharedChannel即高速物理下行共享信道数据承载:峰值速率14.4Mbit/s使用QPSK和16QAM两种调制技术SF=16Upto15HighSpeedSharedControlChannel即高速共享控制信道SF=128携带H-ARQ信息(进程号,冗余版本以及新数据指示器)和TRFI(信道化编码设置,调制计划,传输块大小)每个终端最大可有4逻辑信道DownlinkUplinkHS-PDSCHHS-PDSCHHS-PDSCHHS-PDSCHHS-SCCHHS-DPCCHHS-DPCCHHS-DPCCHHS-DPCCHCreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide17No2,41,8228800363015QPSK12No1,20,9114400363025QPSK11No14,413,981728002795211516QAM10No14,410,131728002025111516QAM9Yes9,67,211344001441111016QAM8No9,67,211152001441111016QAM7Yes4,83,656720072981516QAM6No4,83,655760072981516QAM5Yes2,41,823840072982516QAM4No2,41,822880072982516QAM3Yes1,61,222880072983516QAM2No1,61,221920072983516QAM1最大数据速率时IRHARQ可能理论最大数据率无信道编码Mbps最大数据率Mbps软信道总数bits在1个HS-DSCHTTI接收到的每传输块最大比特数bits最小TTI间的间隔接收的最大HS-DSCH码数调制方案UE目录3GPP规范中的参数HSDPA关键技术:终端（UE）CreatedwithnovaPDFPrinter().Pleaseregistertoremovethismessage.2009-2-10Slide18HSDPA小结¨下行共享信道，多个用户可共享最高14.4Mbit/s的每小区数据速率¨新技术的应用：▪HARQ;▪AMC;▪16QAM;¨固定的频因子(SF=16,HS-PDSCH)；¨固定TTI(2ms)；¨不支持软切换/更软切换；¨在NodeB中增加MAC-hs；¨增加1个传输信道：HS-DSC