eRAN8.1_VoLTE解决方案特性培训文档课件.ppt

* Any one: Industry highest 400 HD voice users simultaneously per cell. Most powerful baseband processor, supports 400 HD voice users with 10MHz. Powered by unique combination of SPS (Semi-Persistent Scheduling) DDS (Delay based Dynamic Scheduling) features Persistent scheduling: Resource activation/de-activation via RRC signaling. No PDCCH overhead required per 20ms for resource allocation in uplink; modem usage saving for both downlink and uplink. Dynamic scheduling: PDCCH overhead required each TTI for resource allocation Delay based Dynamic scheduling: By aggregate multiple packets together, save both PDCCH overhead and PDSCH resource. SID: SID is injected by UE for simulating background noise, it is part of the voice codec and used when user is not talking. * * If the IBLER is larger than IBLER target, then eNodeB send TPC to make UE decrease the transmit power. Otherwise, it send command to make UE increase the transmit power. TPC will be used in calculate the f(i). * * * Voice packets transmit every 20ms. Shutdown power supply of smart phone RF chipset between short transmission inactivity periods to save battery. DRX on network and shallow sleeping on terminal chipset can save 30% * * * * * * * * * * * * * * * * * * * * * * 语音特征感知调度部署 指标名称 指标描述 L.ChMeas.CCE.ULUsed.VoIP 上行VoIP业务使用的PDCCH CCE个数 L.Thrp.Time.UL.QCI.1 小区QCI为1的业务在PDCP层所接收到的上行数据时长 L.Voice.VQI.UL.Excellent.Times 上行语音质量为Excellent所发生的次数 L.Voice.VQI.UL.Good.Times 上行语音质量为Good所发生的次数 L.Voice.VQI.UL.Accept.Times 上行语音质量为Accept所发生的次数 L.Voice.VQI.UL.Poor.Times 上行语音质量为Poor所发生的次数 L.Voice.VQI.UL.Bad.Times 上行语音质量为Bad所发生的次数 语音特定AMC部署 依赖性 无。 激活方法 观测方法 在U2000上查看的性能指标，通过如下公式计算出的上行语音用户(QCI1)的UL IBLER收敛于配置的值，则说明该特性生效。 参数ID 参数名 描述 激活方法 SinrAdjTargetIblerforVoLTE 语音用户SINR校正算法IBLER目标值 上行语音用户IBLER目标值 MOD CellUlSchAlgo LST CellUlSchAlgo 语音特定AMC部署 指标名称 指标描述 L.Traffic.UL.SCH.QPSK.ErrTB.Ibler .QCI.1 UL SCH信道QCI为1业务初传失败的TB数（QPSK） L.Traffic.UL.SCH.16QAM.ErrTB.Ibler .QCI.1 UL SCH信道QCI为1业务初传失败的TB数（16QAM） L.Traff