! nokia参数、名词、指标.xls

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1、名词解释BS_CV_MAXbvcCRCTcircuitCSW trafficDAPDynamic Abis PoolDRXDiscontinuous Reception不连续接收DTMDual Transfer ModeDTXDiscontinuous Transmission不连续发射EDAPEGPRS dynamic Abis poolEUTM Extended Uplink TBF ModeEXGENAExtended Cell for GPRSintPower Control INTervalLEVDOptimum RX Level Downlinknesipmax1900 BS Tx

2、 Pwr MaxPSEIpacket service entity identifierPSEIPacket Service Entity IdentifiersnvcMCPA Multi-Carrier Power Amplifier 多载波功率放大器作用The parameter determines how many radio block periods the countdown procedure lasts inthe end of an uplink(UL)temporary block flow(TBF).在数据上传过程中，BS_CV_MAX参数控制着上行数据块传输确认的等待

3、时间，即当MS收到BTS发过来的Packet Uplink ACK/NACK消息时，如果某块的标识为“未证实”并且该块最后一次发送的时间和MS收到ACK/NACK的时间间隔小于max(BS_CV_MAX,1)1，这也就是说这个RLC块最近刚被传输/重传，所以认为ACK/NACK中的“未证实”是无效的。PCU可以通过BS_CV_MAX参数的设置来调节资源分配。BS_CV_MAX的值设置越高，滑动窗口程序的效率越低，数据速率可能变慢；另一方面，该值越低，MS可能会在证实消息返回之前，又一次重传该RLC数据块，导致无线资源被无效占用的概率增高。目前现网中BS_CV_MAX参数设置值主要有6和9这两种

4、。设置9，ping时长短些。在packet idle模式下可以采用DRX或Non DRX方式传送立即指配命令，这也将不同的时延，这个过程由DRX_TIMER_MAX和手机侧的Non_DRX_Timer一起共同决定。DRX_TIMER_MAX 是针对(E)GPRS 功能引入的一个参数，它和手机侧的Non_DRX_Timer一起共同决定了当(E)GPRS手机从数据传输模式状态转移到数据空闲状态时，对CCCH 信道上信令的监听方式。DRX 模情况下，为了省电，手机只是在属于自己的寻呼信道到来时，才会去监听CCCH信道上的消息从而决定下一步动作；而当网络侧修改DRX_TIMER_MAX 为一个不为了零

5、的值，手机将会在从数据传输模式进入到数据空闲模式后立刻进入Non_DRX模式，这样在一段特定时间内连续监听CCCH 信道，经过这段时间，手机又进入到DRX模式。手机进入Non_DRX模式的时间由min(DRX_TIMER_MAX,Non_DRX_Timer)决定。所以当手机本身Non_DRX_Timer0时，PDP激活时延将无法通过参数DRX_TIMER_MAX修改来得到改善。DTM provides simultaneous CS voice and PS data services.MS is simultaneously indedicated mode and in packet tr

6、ansfer mode.Enables the use of data services such as filetransfer,web browsing,video sharing,and mobile netmeeting during a speech callEDAP配置注意事项：EDAP是基于BCF进行设定的，单个EDAP不能被多个BCF共享；理论上，一个EDAP 所带的载频数最大为20，但由于EDAP的时隙资源必须与TRX的Master TSL处于同一条传输内，实际最大的附带的载频数量小于20；EDAP的容量大小为1264kbps，即48个EDAP子信道；BSC的EDAP容量为4

7、70个；With Extended Uplink TBF Mode the uplink TBF may be maintained during temporary inactiveperiods,where the mobile station has no data to send.Without Extended Uplink TBF Modea new uplink TBF has to be established after every inactive period.When both the MS andthe network support Extended Uplink

8、TBF Mode,the release of the uplink TBF can bedelayed even if the MS occasionally has nothing to transmit.Right after the MS has newdata to send,the same uplink TBF can be used and data transmission can bereactivated.With Extended UL TBF Mode the UL TBF release can be delayed in order to makeit possi

9、ble to establish the following downlink TBF using Packet Associated ControlChannel(PACCH).Using PACCH enables faster TBF establishment compared to using CCCH.With this parameter you define the minimum interval between the changes in the radiofrequency power level.With this parameter you define the o

10、ptimum downlink RF signal level.The optimum levelensures that both speech and data quality are sufficient simultaneously,and that thereis no downlink interference.With this parameter you identify the maximum transmission power of the BTS as anattenuation from the peak power of the TRX.This parameter

11、 is used for frequency bandsGSM 800 and GSM 900.The total attenuation for GSM 800 and GSM 900 band TRXs is BS TXpwr max(pmax1)+BS TX pwr offset(POFF).在发射方向上把多个载波合成一路信号，通过上变频后，对宽带的模拟混合信号进行低噪音放大。因为混合信号中信号与信号的包络幅度相差很大，所以对放大器的非线性特别敏感，MCPA 采用前向反馈技术抑制不需要的互调载波，得到有效的功率利用。Discontinuous Transmission不连续发射参数全称b

12、fgPrefer BCCHFrequency GPRSbltDTX非连续发射方式FRLLower LimitFor FR TCHResourcesFRUUpper LimitFor FR TCHResourcesHoThresholdLevDLHoThresholdLevULMALISTMCAInitial MCSForAcknowledgedModeMCUInitial MCSForUnacknowledgedModeMNDLMNULpetpmrgpriqmrgSL设为-72synchronisedteotrpTRX PriorityIn TCHAllocationMBPMean BEPOf

13、fset 8PSKcodcoding Scheme No HopcodhCoding Scheme Hopt200LapDm timert200ft200sCTCCS TCHAllocationCalculationHRI TCH InHandovertfo下行质差切换门限QDR从5调整到4下行质差采样门限QDN(Nx)从3调整到2下行电平紧急切换门限LDR从-98改到-94900M小区下行电平紧急切换门限LDR从-94调整到-92PBGTPMAXRLTpopt解释With this parameter you define whether the BCCH TRX or other TRXs

14、 are preferred in GPRSchannel allocation.NOTE:MML Range:0(no prioritisation is determined between TRXs),1(GPRS channels are allocated primarily from the BCCH TRX),2(GPRS channels are allocated primarily beyond the BCCH TRX)With this parameter you define how the MS uses DTX(discontinuous transmission

15、).0：移动台可以使用DTX1：移动台必须使用DTX2：移动台不允许使用DTXWith this parameter you define the percentage of full rate TCH resources that must beavailable for traffic channel allocation.Full rate TCHs are allocated until the numberof free full rate resources is reduced below the threshold given in the parameter.Thehalf

16、rate resources are then allocated.该参数取值过大，可能导致小区长时间分配半速率信道，导致通话质量比较差，该参数取值过小，可能导致小区无法分配半速率信道，影响TCH信道接通。With this parameter you define the percentage of full rate TCH resources that must beavailable for traffic channel allocation.Full rate TCHs are again allocated when thenumber of the free full rate

17、 resources increases above the threshold given by theparameter.该参数取值过大，可能导致小区长时间分配半速率信道，导致通话质量比较差，该参数取值过小，可能导致小区无法分配半速率信道，影响TCH信道接通。With this parameter you indicate the Modulation and CodingScheme(MCS)used at thebeginning of a TBF for acknowledged mode.The parameter is used in EGPRS linkadaptation.W

18、ith this parameter you indicate the MCS used at the beginning of a TBF forunacknowledged mode.The parameter is used in EGPRS link adaptation.max number dlmax number ulWith this parameter you define whether the adjacent cell is synchronised with the cellin use.When defining adjacencies between the se

19、ctors of PrimeSite,the value ofparameter synchronised must be N(not synchronised).This is because the sectors ofPrimeSite are not synchronised with each other in a fault case,when the system has setthe sectors to minimum configuration.With this parameter you define whether the BCCH TRX or other TRXs

20、(of the regularfrequency area)are preferred in traffic channel allocation.Values:0 No prioritisation between TRXs,all TRXs are treated equally in TCH allocation.1 Traffic channel is allocated primarily from the BCCH TRX.2 Traffic channel is allocated primarily from another TRX than the BCCH TRX.3 Tr

21、affic channel is allocated primarily from the BCCH TRX for the non-AMR users and forthe AMR users primarily beyond the BCCH TRX.With this parameter you can adjust the MCS and modulation preferences.This is theoffset added to reported 8PSK mean BEP values before BEP table lookups.The valueapplies to

22、both uplink and downlink directions.The parameter is used in EGPRS linkadaptation.不同小区的GPRS参数MBP优化，MBP是BTS参数，链路自适应运算进行前，Mean_BEP_offset_8PSK 会添加一个偏移量到BEP测量报告里。决定采用什么样的解码方案是根据BEP测量值来进行运算的。所以适当的修改该参数值可以提升高编码比例。With this parameter you indicate the selection of coding Scheme in RLC(Radio LinkControl)Ack

23、nowledged mode in case frequency hopping is not used.With this parameter you indicate the selection of Coding Scheme in RLC(Radio Link Control)Acknowledged mode in case frequency hopping is used.It is now possible to modify the Link Access Protocol on the Dm channel(LAPDm)t200values in the BSC to en

24、sure that the message transfer in the air interface is notstopped too early.Previously,the LAPDm t200 values were defined in the BTS SWconfiguration file,which required a new SW build.The values are modifiable for fullrate,half rate and SDCCH channels.The downloaded FACCH t200 is used for both full

25、rateand half rate,and the one downloaded SDCCH t200 value is used for both SAPI0 and SAPI3messages.The downloaded FACCH t200 is used for both full rate and half rate.downloaded SDCCH t200 value is used for both SAPI0 and SAPI3 messages0=Only CSW used RTSLs are used to calculate resources.1=CSW and P

26、SW used RTSLs are used.PSW used RTSLs are seen as occupied resource whencalculating PSW RTSLs.2=CSW used and PSW used RTSLs are used.PSW used RTSLs are seen as idle resource whencalculating resources.当计算全速率信道资源时，定义数据动态信道是否参与计算。参数取值范围：0，1，2 0-动态数据信道不考虑进入门限计算，即计算门限时，分子和分母均不考虑动态信道数。1-动态信道算参与计算且计算为全忙的TC

27、H信道，即在计算TCH空闲比例时，分母包括动态信道数，而分子不包括动态信道数。2-动态信道算参与计算且计算为全闲的TCH信道，即在计算TCH空闲比例时，分子和分母均包括动态信道数。CTC决定其占用顺序：CTC=0：先启动半速率，然后语音抢占动态信道数；CTC=1：先启动半速率，然后语音抢占动态信道数；CTC=2：决定于FRL具体设置值；1、当FRL（动态信道/(语音信道+动态信道）)，先启动半速率，然后抢占动态信道数；在此设置下可能的网络情况是，数据业务资源得到保障，性能较好，而语音业务半速率占用相对高；2、当FRL4 TBF/TSL小区数量（NOKIA、华为设备）/下行2TBF/TSL小区数

28、量（MOTOROLA设备）的数据有效小区的并集（沿用现有网管的考核指标）最坏小区分母：统计时段每线话务量大于0.1ERL的语音小区和下行数据流量100K的数据小区的并集（沿用现有网管的考核指标）合肥现网值：无线接入性99.62%，掉话率0.17%，TCH拥塞率0.01%，SD拥塞率0.01%如果出现大量的paging_delete请做适当的降功率、提升接入电平、调整RET和BMA的操作。（RET 4-2、BMA 改为4、PMAX1 0-4）2G全网运行情况：无线接入率99.56%，掉话率0.27%，话务量18833.2erl，TCH 拥塞率0.05%,SD 拥塞率0.04%，BCSU 负荷最高

29、值是合肥BSC1 的BCSU0 为27%，Paging 量最高值是合肥BSC1 为309513 次,网络运行平稳。）不懂-随机接入成功率？tch_suc无线接通率?radio_suc最坏小区分子：掉话率超过3%或接入成功率低于95%的语音有效小区（接入成功率随机接入成功率无线接通率）和GPRS（含EGPRS）的TBF拥塞率超过2%或下行4 TBF/TSL小区数量（NOKIA、华为设备）/下行2TBF/TSL小区数量（MOTOROLA设备）的数据有效小区的并集（沿用现有网管的考核指标）最坏小区分母：统计时段每线话务量大于0.1ERL的语音小区和下行数据流量100K的数据小区的并集（沿用现有网管的

30、考核指标）如果出现大量的paging_delete请做适当的降功率、提升接入电平、调整RET和BMA的操作。（RET 4-2、BMA 改为4、PMAX1 0-4）无线接入率99.56%，掉话率0.27%，话务量18833.2erl，TCH 拥塞率0.05%,SD 拥塞率0.04%，BCSU 负荷最高值是合肥BSC1 的BCSU0 为27%，Paging 量最高值是合肥BSC1 为309513 次,网络运行平稳。）最坏小区分子：掉话率超过3%或接入成功率低于95%的语音有效小区（接入成功率随机接入成功率无线接通率）和GPRS（含EGPRS）的TBF拥塞率超过2%或下行4 TBF/TSL小区数量（

31、NOKIA、华为设备）/下行2TBF/TSL小区数量（MOTOROLA设备）的数据有效小区的并集（沿用现有网管的考核指标）KPI groupDescriptionFormula IDava_15未分类平均PS域的时隙数ava_16aava_17ava_1aava_1cava_1dAvailability TCH availability ratio ava_1gava_2ava_21ava_3Availability Data service availability ratio ava_68blck_10ablck_11ablck_12blck_14blck_15blck_16ablck_1

32、6bblck_17blck_18blck_19blck_20未分类升级拒绝blck_22未分类PCU拥塞判据blck_32未分类多时隙申请软拥塞blck_33PDTCH congestionDownlink multislot soft blockingblck_33bblck_5AccessibilitySDCCH real blockingblck_5ablck_5ablck_7blck_8blck_8bblck_8dAccessibilityTCH call blocking,before DRblck_8iblck_9bblck_9ccnf_1cngt_1cngt_2cngt_3Acc

33、essibilitySDCCH access probability,before FCScsf_1csf_1acsf_2a未分类DAP_10abis/edap拥塞指标DAP_12未分类abis/edap拥塞指标DAP_13未分类DAP_15未分类DAP_1A未分类DAP_3Abis congestionInadequate EDAP resources indownlinkdap_7a未分类DAP_8CPCU congestionDownlink MCS selection limited by PCUdap_9RetainabilityTCH dropped conversationdcr

34、_5aRetainabilityTCH dropped conversation ratio,re-est.considereddcr_5bdis_1dis_1adis_3adlq_1QualityDL cumulative level ratio in class Xdlq_2a,x=5dr_1Traffic ShareDTM CS traffic ratiodtm_2Network usageDTM PS payload ratiodtm_3Gb congestionDownlink Gb loadfrl_8bRetainabilityTotal HO failure ratiohfr_2

35、aAccessibilityHO failure ratio due to radio interface blockinghfr_55cRetainabilityHO drop ratiohfr_68citf_1lb_10lb_13lb_7blb_9lev_1lev_2User experienceLLC throughput for 4-tsl EDGE MSSllc_3aUser experienceLLC throughput for GPRS MSS(for each QoS class)llc_4a未分类MSL_15未分类下行多时隙分配成功率MSL_16MSL_17未分类UP_MS

36、L_REQMSL_6pgn_1pgn_4pwr_1bpwr_2未分类下行的RLC BLERrlc_13rlc_74bRetainabilitySDCCH drop ratio without timer T3101 expirysdr_4sms_1sms_2sms_3未分类UL mlslot Allocation Blocking TBF_15UP_TBF_BLKTBF_15A未分类申请拒绝tbf_16PDTCH congestionDownlink multislot allocation blockingtbf_16b未分类Function Failure Ratio/UL TBF Rel

37、eases due to CS TrafficTBF_19未分类时隙被挤tbf_20未分类Retainability/TBF Success Ratio(tbf_34)TBF_34未分类TBF_34A TBF_35tbf_37b未分类TBF_37Dtbf_38b未分类TBF拥挤tbf_38cPDTCH congestionDownlink TBFs per timeslot tbf_38dNetwork usageUplink signalling TBFs usage ratiotbf_61MobilityDownlink flush per minute tbf_64Network usa

38、geShare of EDGE requeststbf_65bPDTCH qualityTBF establishment failure ratiotbf_66PDTCH qualityTBF success ratiotbf_67trf_1trf_11trf_12Traffic ShareTCH traffic share of non-AMR callstrf_120aTraffic ShareTCH traffic share of FR AMR callstrf_121Traffic ShareTCH traffic share of HR AMR callstrf_122atrf_

39、13btrf_13ctrf_13dNetwork usageUplink EGPRS erlangstrf_161iNetwork usageDownlink EGPRS erlangstrf_162gtrf_18trf_18atrf_19Traffic ShareTCH Traffic Sumtrf_1dtrf_20Network usageUplink GPRS erlangstrf_205dNetwork usageDownlink GPRS erlangstrf_208cPDTCH qualityUplink GPRS RLC throughputtrf_233cPDTCH quali

40、tyAverage effective ACK EGPRS Uplink throughput per used TSLtrf_234PDTCH qualityDownlink GPRS RLC throughputtrf_235bPDTCH qualityDownlink EGPRS RLC throughputtrf_236Network usagePS erlangstrf_237dtrf_23aNetwork usageRelative share of PS erlangstrf_242aNetwork usageUplink RLC payloadtrf_243Network us

41、ageDownlink RLC payloadtrf_244trf_24ctrf_25trf_28trf_29trf_2btrf_3trf_30trf_3btrf_4trf_5trf_6Network usageUplink signalling TBFs usage ratio trf_61trf_74atrf_77atrf_7ctrf_83trf_9ulq_2Quality UL cumulative level ratio in class X ulq_2a,x=5解释问题指向Average CS territory,S9(ava_15)Average PS territory,S9PS

42、(ava_16a)优化EGPRS无线时隙资源，对于那些平均PS域的时隙数大于现网CDEF设置时隙数的，将取CDEF 值为该小区实际平均PS域的时隙数，这样可以减少不必要的(E)GPRS Upgrade次数Average available dedicated GPRS channels,S9PS(ava_17)TCH availability%,S4(ava_1a)TCH availability%,S9(ava_1c)TCH availability%,S9(ava_1d)Average available TCH,S1(ava_2)Number of timeslots available

43、 for CS traffic,S9(ava_21)Average available SDCCH,S1(ava_3)Blocked TCH HOs,S2(blck_10a)TCH HO blocking,S2(blck_11a)Blocked incoming and internal HO,S2(blck_12)FCS blocking,S5(blck_14)Blocked SDCCH seizure attempts,S5(blck_15)HO blocking%(blck_16a)Handover blocking%(blck_16b)Abis link blocking(blck_1

44、7)Blocked FACCH call setup TCH requests(blck_18)Handover blocking to target cell(blck_19)Handover blocking from target cell(blck_20)突发EGPRS话务很多，造成很多GPRS用户速率限制。(20%)无拥塞(0)未成功分配的信道总数和信道请求总数，申请更多的时隙，不能满足（20%,5%）Indicates the ratio of unserved timeslots requests to all requests in downlink.Recommended t

45、o be used with S12 when High Multislot Class(HMC)feature has been activated in network.Old formula(blck_33)can be used with S12 if HMC is not activated.However,the old formula cannot distinguish soft blocking of MSS which have higher multislot class than network can support.SDCCH blocking%,S1(blck_5

46、)SDCCH real blocking%,S1(blck_5a)TCH raw blocking%on regular TRXs,S4(blck_7)TCH call blocking,before DR,S2(blck_8)TCH call blocking%,DR compensated,S2(blck_8b)TCH call blocking%,DR and DAC compensated,EFR excluded,S5(blck_8d)Blocked calls,S5(blck_9b)Blocked calls,S5(blck_9c)Reuse pattern(cnf_1)频率复用度

47、TCH congestion time,S1(cngt_1)SDCCH congestion time,S1(cngt_2)FTCH time congestion%(cngt_3)SDCCH access probability(csf_1a)SDCCH success ratio(csf_2a)下行上行优秀值是 75 min/GByte，大于150 min/GB为超标下行MCS编码受限因为PCU资源不足的原因,优秀值是30min/GByte.Average MS-BS distance(dis_1)Average MS-BS distance(dis_1a)MS-BS distance c

48、lass upper range(dis_3a)DL BER,S1(dlq_1)下行质量DR,outgoing attempts,S3(dr_1)UL interference,BTS level,S1(itf_1)Average DL signal strength,S2(lb_10)Average link imbalance,S2(lb_13)Average MS power,S2(lb_7b)Average UL signal strength,S2(lb_9)Average DL signal strength,S2(lev_1)Average UL signal strength,

49、S2(lev_2)1-blk33，无线信道充足率Number of paging messages sent,S2(pgn_1)Paging success ratio,S1(pgn_4)Average MS power,S2(pwr_1b)Average BS power,S2(pwr_2)NOKIA OMC数据中也有RLC重传公式。从分子的触发条件来看，重传的RLC块必须是手机在上报的DLAck/Nack中标记为NACKED的块，也就是真实的因为某些原因，手机接收丢失的RLC块，即下行的RLCBLER(rlc_13)，路测中的RLC BLER应该直接对应这一公式。Cs2编码块重传率数据流量

50、SMS establishment failure%(sms_1)SMS TCH establishment failure%(sms_2)SMS SDCCH establishment failure%(sms_3)上行无可用的无线信道分配于(E)GPRS与(E)GPRS信道请求的百分比下行无可用的无线信道分配于(E)GPRS与(E)GPRS信道请求的百分比，无线下行资源不足 EGPRS接入上的硬拥塞（1%,0.5%）上行cs对ps业务的抢占In GPRS the CS takes priority over the radio interface resources outside the