[求助]请高手帮我分析一下RASYS450一个终端的掉话原因？

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<p>------------------------&lt;CSL Detail&gt;------------------------<br/>VER(CSL版本): 9</p><p>CcbNo(CCB号): 1529</p><p>RelCause(呼叫释放原因值): 0xc05(SDU_TOO_MANY_ERASURE_FRAME)</p><p>MainState(CCB的主状态): 7(CS_CONNECTED,连接态)</p><p>SubState(CCB的从状态): 1(CSS_IDLE)</p><p>StateFlag(呼叫状态标志): 0x3ffc1<br/>--------------------------------<br/>&nbsp;&nbsp;&nbsp; 0: A1Connected<br/>&nbsp;&nbsp;&nbsp; 0: DschConnected<br/>&nbsp;&nbsp;&nbsp; 0: LacConnected<br/>&nbsp;&nbsp;&nbsp; 0: UmConnected<br/>&nbsp;&nbsp;&nbsp; 1: EstReqSent<br/>&nbsp;&nbsp;&nbsp; 1: RrmConnected<br/>&nbsp;&nbsp;&nbsp; 1: LcbConnected<br/>&nbsp;&nbsp;&nbsp; 1: AssgReqReceived<br/>&nbsp;&nbsp;&nbsp; 1: AssgCmpSent<br/>&nbsp;&nbsp;&nbsp; 1: A9Connected<br/>&nbsp;&nbsp;&nbsp; 1: HoCmpOrHoPerformSent<br/>&nbsp;&nbsp;&nbsp; 1: ClrCmdReceived<br/>&nbsp;&nbsp;&nbsp; 1: FirstCalledRelCallRes<br/>&nbsp;&nbsp;&nbsp; 1: IwfRelDelayTimerStart<br/>&nbsp;&nbsp;&nbsp; 1: DschIsReady<br/>&nbsp;&nbsp;&nbsp; 1: bit1QTchAllow<br/>&nbsp;&nbsp;&nbsp; 0: bit1QTchRun<br/>&nbsp;&nbsp;&nbsp; 0: bit1A9UpdA8AckReceived<br/>&nbsp;&nbsp;&nbsp; 0: bit1SrvConnMsgSent<br/>&nbsp;&nbsp;&nbsp; 0: bit1SrvConnCmpReceived<br/>&nbsp;&nbsp;&nbsp; 0: bit1MsAckOrdReceived<br/>&nbsp;&nbsp;&nbsp; 1: bit1ConnectOrdReceived</p><p>ResFlag(呼叫资源标志): 0x10<br/>--------------------------------<br/>&nbsp;&nbsp;&nbsp; 0: CieOccupied<br/>&nbsp;&nbsp;&nbsp; 1: CieHhoAlloced<br/>&nbsp;&nbsp;&nbsp; 0: PieOccupied<br/>&nbsp;&nbsp;&nbsp; 0: LieOccupied<br/>&nbsp;&nbsp;&nbsp; 0: CimReleased<br/>&nbsp;&nbsp;&nbsp; 0: bit1RpsOccupied</p><p>LCB0(Leg0的LCB号): 0xfc</p><p>LCB1(Leg1的LCB号): 0xffff</p><p>LCB2(Leg2的LCB号): 0xffff</p><p>LCB3(Leg3的LCB号): 0xffff</p><p>LCB4(Leg4的LCB号): 0xffff</p><p>LCB5(Leg5的LCB号): 0xffff</p><p>MssbNo(MSSB号): 0xf5a</p><p>CimNo(CIM的连接号): 0x4ca</p><p>Imsi(IMSI): 460067505991681</p><p>Esn(ESN): 09254abd</p><p>MobPRev(手机版本): 6</p><p>SCM(手机类标): 0x2a<br/>--------------------------------<br/>&nbsp;&nbsp;&nbsp; 0: Extended SCM Indicator,0-BandClass0;1-BandClass1<br/>&nbsp;&nbsp;&nbsp; 0: Dual Mode,0-CDMA Only;1-DualMode<br/>&nbsp;&nbsp;&nbsp; 1: Slotted Class,0-Non Slotted;1-Slotted<br/>&nbsp;&nbsp;&nbsp; 0: IS-54 Power Class,Always 0<br/>&nbsp;&nbsp;&nbsp; 1: 25 MHz Bandwidth,Always 1<br/>&nbsp;&nbsp;&nbsp; 0: Transmission,0-Continuous;1-Discontinuous<br/>&nbsp;&nbsp;&nbsp; 1: Power Class for Band Class 0 Analog Operation<br/>&nbsp;&nbsp;&nbsp; 0: 和上一个比特一起表示：00-Class I;01-Class II;10-Class III;11-Reserved</p><p>Called(主被叫): 1(Called被叫)</p><p>AccCell(接入小区): 0x4</p><p>AccSector(接入扇区): 0x0</p><p>CdmaFreq(频点): 97</p><p>N0(附加导频PN0): 65535</p><p>N1(附加导频PN1): 65535</p><p>N2(附加导频PN2): 65535</p><p>N3(附加导频PN3): 65535</p><p>N4(附加导频PN4): 65535</p><p>ActivePilotStrength(接入时激活导频强度(-0.5dB)): 9</p><p>AddtPN0Strength(第0个附加导频强度(-0.5dB)): 0</p><p>AddtPN1Strength(第1个附加导频强度(-0.5dB)): 0</p><p>AddtPN2Strength(第2个附加导频强度(-0.5dB)): 0</p><p>AddtPN3Strength(第3个附加导频强度(-0.5dB)): 0</p><p>AddtPN4Strength(第4个附加导频强度(-0.5dB)): 0</p><p>AccHoFlag(无线环境字段的相关标志): 0x80<br/>--------------------------------<br/>&nbsp;&nbsp;&nbsp; 1: FirstIsActive<br/>&nbsp;&nbsp;&nbsp; 0: FirstIsPta<br/>&nbsp;&nbsp;&nbsp; 0: Reserved<br/>&nbsp;&nbsp;&nbsp; 0: AddtPN4AccHoEn<br/>&nbsp;&nbsp;&nbsp; 0: AddtPN3AccHoEn<br/>&nbsp;&nbsp;&nbsp; 0: AddtPN2AccHoEn<br/>&nbsp;&nbsp;&nbsp; 0: AddtPN1AccHoEn<br/>&nbsp;&nbsp;&nbsp; 0: AddtPN0AccHoEn</p><p>DropCell(掉话小区): 0x4</p><p>DropSector(掉话扇区): 0x0</p><p>SO(业务选项): 0x3(CCM_SO_EVRC)</p><p>FMR(FMR_CPU):F3S3</p><p>CIC(CIC号): 0xffff</p><p>EvcIfIndex(EVC的AAL2标识IfIndex): 0</p><p>EvcCid(EVC的AAL2标识Cid): 205</p><p>EvcVpi(EVC的AAL2标识VPI): 6</p><p>EvcVci(EVC的AAL2标识VCI): 84</p><p>PPU IP(PPU的IP地址): 0x0</p><p>CallNotProcCnt(未处理呼叫次数): 0</p><p>AphoCnt(接入探测切换次数): 0</p><p>PgRspTime(从发送GPM到收到PRM的时间(tick)): 150</p><p>TransToDchTime(从发送CAM（ECAM）到收到PREAMBLE的时间(tick)): 53</p><p>CallSetUpTime(从收到ORM或PRM到收到SCCM的时间(tick)): 302</p><p>CalledTick(呼叫持续时长(tick)): 1526</p><p>No.(被(主)叫号码): </p><p>ActivePnNum(激活导频个数): 1</p><p>PN1.Cell(导频1小区): 4</p><p>PN1.Sector(导频1扇区): 0</p><p>PN1.Strength(导频1强度(-0.5dB)): 9</p><p>PN1.Delay(导频1传输延迟(Chip(s))): 50</p><p>PN2.Cell(导频2小区): 0</p><p>PN2.Sector(导频2扇区): 0</p><p>PN2.Strength(导频2强度(-0.5dB)): 0</p><p>PN2.Delay(导频2传输延迟(Chip(s))): 0</p><p>PN3.Cell(导频3小区): 0</p><p>PN3.Sector(导频3扇区): 0</p><p>PN3.Strength(导频3强度(-0.5dB)): 0</p><p>PN3.Delay(导频3传输延迟(Chip(s))): 0</p><p>95_FPC(95前向功率(dB)): -15.5</p><p>RevEbNt(反向EbNt): 96</p><p>FwdFER(前向FER): 4</p><p>RevFER(反向FER): 1000</p><p>HhoCause(硬切换原因值): 0</p><p>RefCell(硬切换时参考小区): </p><p>RefSector(硬切换时参考扇区): _</p><p>RefStrength(硬切换时参考导频强度(-0.5dB)): _</p><p>RefDelay(硬切换时参考导频传输延迟(Chip(s))): _</p><p>TargetARFCN(硬切换目标频点): _</p><p>TargetPnNum(硬切换目标导频个数): _</p><p>Target1.Cell(目标1小区号): _</p><p>Target1.Sector(目标1扇区号): _</p><p>Target1.Strength(目标1导频强度(-0.5dB)): _</p><p>Target1.Delay(目标1传输延迟(Chip(s))): _</p><p>Target2.Cell(目标2小区号): _</p><p>Target2.Sector(目标2扇区号): _</p><p>Target2.Strength(目标2导频强度(-0.5dB)): _</p><p>Target2.Delay(目标2传输延迟(Chip(s))): _</p><p>Target3.Cell(目标3小区号): _</p><p>Target3.Sector(目标3扇区号): _</p><p>Target3.Strength(目标3导频强度(-0.5dB)): _</p><p>Target3.Delay(目标3传输延迟(Chip(s))): _</p><p>Time(Time): 2007-09-15 09:27:59<br/>-------------------------------------------------------------<br/></p>