《BSC相关计数器以及统计分析》由会员分享，可在线阅读，更多相关《BSC相关计数器以及统计分析（54页珍藏版）》请在金锄头文库上搜索。
1、Page 1BSC相关计数器以及统计分析Page 2主要内容: 怎样阅读理解有关的内容? 怎样定义收集和处理感兴趣的计数器统计? 怎样根据收集的数据进行相关的分析,指导网络问题的分析和优化Page 3Object types的分类: Traffic and Event Measurements in Radio Network BTS Statistics CCITT7 MTP CCITT7 SCCP SS7 MTP SS7 SCCP GSS Set of Parts GSBASE GSS Set of Parts SRS GSS Set of Parts SNT GSS Set of Par
2、ts NETSYNC GSS Set of Parts GSTS Control System怎样阅读理解有关的内容Page 42TrafficandEventMeasurementsinRadioNetwork2.10IntraCellHandoverMeasurementsperCell2.10.1DescriptionofMeasurementsThenumberofsuccessfulintracellhandovers(HOINSUC)isincrementedwhenanyoneofthecounters(HOINUQA,HOINDQAorHOINBQA)isstepped,and
3、themessageHANDOVERPERFORMEDissenttotheMSC.Message : HANDOVER PERFORMED Counter : (HOINSUC)2.10.2Objecttype=CELEVENTI(IntraCellChannelChangeperCell)Type Counter name Description PC HOINSUC Number of successful intra cell handovers. 文件的结构:怎样阅读理解有关的内容Page 5计数器类型Counter Types:1.ID: Object identifier use
4、d by some object types: 例子:BSC ID; Cell pointer;Block number;TRA pool pointer2.PC: Peg counter, shows the accumulated number of events or the accumulated value of a counter. A peg counter can only be incremented(大多数计数器属于本类型)例子:Type Counter name Description PC HOINSUC Number of successful intra cell
5、handovers. 3.ST: Status counter, shows the counter value at a specific moment (i.e snapshot). A status counter can be incremented and decremented(反映在某个时间的情况)例子:Type Counter name DescriptionST BSCMAXMS Number of ongoing MS sessions in the BSC 怎样阅读理解有关的内容Page 6Counters of Overlaid and Underlaid cell上下
6、层小区计数器的关系:Dependent:Since the relation is dependent, incrementing the overlaid subcell counter THTRALSUB will lead to incrementing the corresponding underlaid subcell counter THTRALACC at the same time.Disjoint:Since the relation is disjoint, incrementing the overlaid subcell counter TFV1TCONSUB wil
7、l not affect the corresponding underlaid subcell counter TFV1TCONGS.怎样阅读理解有关的内容Page 7 每隔5分钟或者15分钟,DB从BSC中的相关应用中获取计数器统计信息. 报告程序(Report Programs)在需要产生报告时从DB中获取相关信息 报告的产生根据报告形成时间表来进行统计子系统概述:怎样定义收集和处理感兴趣的计数器统计Page 8统计的定义和统计文件的定义输出(1):!检查统计DB的配置(Check the database configuration).IMLCT:SPG=0;SDDOP:OBJTYPE
8、=ALL,AREA=OPER;!中止数据收集SDDCE;SDDOI;!如果相应Object Type 的INCL为 No,通过以下指令把相应ObjectType在DB中激活:SDDOC:OBJTYPE=LOAS,INCL=YES,BRP=15;SDDOC:OBJTYPE=CELEVENTD,INCL=YES,BRP=15,NOBJ=480;!NOBJ可以通过相应的SAE来决定! Number of internal cells内部小区数SAAEP:SAE=298;! Number of external cells外部小区数SAAEP:SAE=299;! Number of internal
9、HO relations内部相邻关系数目SAAEP:SAE=522,BLOCK=RQCD;! Number of external HO relations外部相邻关系数目SAAEP:SAE=523,BLOCK=RQCD;!执行相应的修改SDDOE:EXEC;END;!重新开始数据的收集IMLCT:SPG=0;SDDCI;SDDTI;!检查DB的配置是否更新SDDOP:OBJTYPE=ALL,AREA=OPER;END;怎样定义收集和处理感兴趣的计数器统计Page 9统计的定义和统计文件的定义输出(2):!定义统计输出文件inmct:spg=0;INFII:FILE=BSCFILE,VOL=E
10、XCHVOLUME,RLENGTH=2048,SIZE=200,EXP=20,TYPE=SEQ,FCLASS=CMP;infip:file=BSCFILE; end;!定义报告的ID以及包含的Object Typeimlit:spg=0;sdfop:rptid=all;!选择一个空闲的IDSDFOI:RPTID=88,FILE=BSCFILE,OBJTYPE=RANDOMACC&CLSDCCH&CELLCCHDR&IDLEUTCHF&CELLCCHHO&CLTCH&CELTCHF&CELEVENTI&CELEVENTD&CELLSQI&CELLHCS&DOWNTIME&CLTCHDRF;sdf
11、op:rptid=all;end;!定义各子文件的收集时间间隔imlit:spg=0;sdfsp:file=all; SDFSC:FILE=BSCFILE,INTM=15;end;!定义MPimlit:spg=0;sdtip;!选择一个空闲的MPSDTPI:MP=88,RPTID=88,INT=1,TIME=1100,REP=1;sdtip;!把统计文件传到OSS系统infup;INFDI:DEST=TMOSAUTO,EQUIP=MTP,FILE=BSCFILE;INFCC:FILE=BSCFILE,TRANSCOND=AUTO,REMOVE=01200;!定义自动删除的条件和时间INFUP:
12、FILE=BSCFILE;怎样定义收集和处理感兴趣的计数器统计Page 10OSS/NWSOverviewWEBNWS-ANALYSERBusiness ObjectsSTSDATA FILEOMSDATA FILESTCP/IPX25AXE1stOpenInterfaceRawInterface2ndOpenInterfacePSALOADINGFMExternal eventsBSDCSDSDMSDM FILE X FILEExternal systemsSGwSMIAX formatSDM formatSTSY DataOMS- Parsers- Formatters怎样定义收集和处理感
13、兴趣的计数器统计Page 11SPOS and TURTLE -统计数据文件后处理软件STFIOP-files from the IOGSPOSdBase IV filesTURTLERESULTSTFIOP is a file format used in the IOG. The dbf-files can be viewed and worked with in Excel.怎样定义收集和处理感兴趣的计数器统计Page 12主要计数器分析Page 13BTS基站相关统计Managed Object Transceiver Group:MOTGManaged Object Time Slo
14、t Handler:MOTSType Counter name Description ID ID1 State identifier ID ID2 Block number PC CONERRCNT Abnormally terminated connections Incremented for TCH and SDCCH when a connection is dropped due to 1)Error indication. 2) Connection failure indication. 3) Abnormal disconnect request (due to Timing
15、 Advance larger than the value specified for the cell or number of Measurement Results received less than specified for the cell). 4) Trace failure at small restart 5) Forlopp release PC CONCNT Connection set up attempts. Incremented each time a TCH or SDCCH is seized.Digital path measurements per d
16、igital path supervision function block:DIGPATHPage 14BTS基站相关统计(DOWNTIME)Type Counter name Description PC TDWNACC Cell downtime accumulator PC TDWNSCAN Number of accumulations of Cell downtime accumulatorthe cell downtime accumulator (TDWNACC) is stepped every tenth second when the cell state is ACTI
17、VE and there are no TCHs in IDLE or BUSY state in that cell.Page 15GSS Set of Parts GSSBASEObject Type:GRPSWITCH主要统计在扫描时间内,GSS设备TSM和SPM的数目和被Block的设备的数目.GSS Set of Parts ,SRSObject Type:SNT统计信息关键词:Number of connected SRSs ; Number of blocked SRSs. Accumulated number of blocked SRSs. GSS相关统计(1)Page 16
18、GSS Set of Parts ,SNTObject Type:SNT统计信息关键词:Number of connected SNT ; Number of blocked SNT ; Accumulated number of blocked devices GSS Set of Parts NETSYNCObject Type:NETSYNC统计信息关键词:clock references type CCM ; RCM ; EXT ; Number of reference groups with clock reference of type DIP ; Number of block
19、ed references ;Distributed Group SwitchObject Type:DIGS统计信息关键词:Number of blocked DIGS units ; in plane B; in plane A; Number of accumulated blocked DIGS units ; Number of connected DIGS units ;GSS相关统计(2)Page 17控制系统相关统计(1)Central ProcessorObject Type:CP主要统计信息关键词:large restarts; small restarts ; with
20、reload;without reload; manually initiated; automatically initiated; permanent CP-faults; blocked MAU/AMU; Memory size ; forlopps aborted ; program executions terminated without any recovery action ; RPObject Type:RP主要统计信息关键词:single RPs in blocking state ; Numbers of RP-pairs where one RP is manually
21、 blocked and the other is working ; Numbers OF RP-pairs where one RP is automatically blocked and the other is working; Number of temporary faults in RP ; permanent faults in RP ;Page 18EMRP和EMObject Type: EMRP 和EM统计信息的关键词:Number of Ems(EMRP) ; Number of blocked Ems(EMRP). EMG和EMGSTATEObject Type:EM
22、G和EMGSTATE统计信息的关键词:EMG: Number of EMGs ; Number of permanent faults in EMG EMGSTATE: Number of occurrences;all control paths to EMG; A-side control path to EMG ; B-side control path to EMG ; unavailable ; due to fault in control system (STS or STR); due to fault in signalling link;控制系统相关统计(2)Page 19
23、Support ProcessorObject Type:SPSP统计信息的关键词:restarts ; reload ; small updates of FMS; Number of ordered large updates of FMS; Minimum free memory storage; Maximum memory free storage;Support Processor Hard DiskObject Type:SPHD统计信息的关键词:Number of disk read operations;Number of recoverable disk read erro
24、rs Support Processor Data LinkObject Type:SPHD统计信息的关键词:Total number of transmitted information frames ; Number of retransmitted information frames 控制系统相关统计(3)Page 20Adjunct Processor PlatformObject Type: APPLATFORM 统计信息关键词:Page fault rate ; Cache fault rate ; Current user CPU usage ; Available free
25、memory ; Registry quota in use ;.Adjunct Processor Hard DiskObject Type:APDISKS统计信息关键词:Average Disk Read Queue Length ; Average Disk Write Queue Length ; Disk read time ; Disk write time ;控制系统相关统计(4)Page 21Ater Interface Transmission Device Measurements in a TRC per BSCType Counter name Description
26、ID ID1 BSC pointer PC AVATERTRCDEV Available Ater interface transmission device accumulation counter PC SZATERTRCDEV Number of partly or wholly seized Ater interface transmission device accumulation counter PC SZSATERTRCDEV Number of seized Ater interface transmission subdevice accumulation counter
27、PC ALLOCATERATP Number of allocation attempts for Ater interface transmission devices PC SALLOCATERATP Total number of allocation attempts for Ater interface transmission subdevices PC ATERCONG Number of failed allocation attempts due to Ater interface transmission congestion PC BLATERTRCDEV Number
28、of blocked Ater interface transmission devices PC TRCNSCAN Number of accumulations Page 22Page 23信令相关统计(1)CCITT No.7 - CCITT7 MTP 和CCITT7 SCCPANSI No.7 - SS7 MTP 和SS7 SCCP指令Rasip可以检查BSC使用那种No.7信令:CCITT No.7或者ANSI No.7Page 24信令相关统计(2)CCITT7 SCCPSCCP PerformanceObject Type:C7SCPERF(The counters are sy
29、stem total for SCCP)统计信息关键词:Routing failure; Subsystem Failure; Unequipped user; Network Failure; Network congestion; Reason unqualified; Syntax error detected ;SCCP Quality of ServiceObject Type: C7SCQOS(The counters are system total for SCCP)统计信息关键词:UDT ; UDTS ; CR ; CREF ; ERR ; XUDT ; XUDTS ;mes
30、sages received from MTP ; messages sent to MTP ;Page 25信令相关统计(3)CCITT7 SCCPSCCP Subsystem UtilizationObject Type: C7SCSUBSYS(The counters are defined per SSN and identified by SSN)SCCP UtilizationObject Type:C7SCCPUSE(The counters are system total for SCCP.) 统计信息关键词:Total number of simultaneous SCCP
31、 buffers; 512 octet length; 1024 octet length; 2048 octet length. Total number of simultaneous connection sections; Total messages sent for connectionless; SCCP Signalling PointObject Type:C7SCSIGP (The counters are defined per signalling point and identified by the network address. )Page 26CCITT7 M
32、TPPage 27Type Counter name Description PC CBADFRAME Number of received bad frames PC CTRIFRAME Number of transmitted LAPD information frames PC CRECIFRAME Number of received LAPD information frames PC CRETRANSM Number of retransmissions PC COVERLOAD Number of link overloads PC CLINKFAIL Number of li
33、nk failures PC CPROCOLERR Number of link protocol errors LAPD Link Measurements per TRH device(LAPD)Rxmdp:mo=rxotrx-x-yPage 28Random Access随机接入(RANDOMACC)Page 29Type Counter name Description PC CNROCNT Number of accepted random accesses PC RAACCFA Failed random access PC RAEMCAL Number of random acc
34、esses, Emergency call PC RACALRE Number of random accesses, Call reestablishment PC RAANPAG Number of random accesses, Answer to paging. PC RAOSREQ Number of random accesses, Other service request. PC RAOTHER Number of random accesses, All other cases. PC RATRHFAEMCAL Number of rejected CHANNEL REQU
35、IRED in TRH with establishment cause Emergency call. PC RATRHFAOTHER Number of rejected CHANNEL REQUIRED in TRH which are not included in RATRHFAEMCAL and RATRHFAREG. PC RATRHFAREG Number of rejected CHANNEL REQUIRED in TRH with establishment cause Location Update.Random Access随机接入(RANDOMACC)Page 30
36、IfNECI=0:Answer to paging (RAANPAG). The counter will be stepped for cause value 100x xxxx. Emergency call (RAEMCAL). The counter will be stepped for cause value 101x xxxx. Call reestablishment (RACALRE). The counter will be stepped for cause value 110x xxxx, Call reestablishment, TCH/F is needed, o
37、r originating call and NECI bit not set to 1, or procedures that can be completed with an SDCCH and NECI bit not set to 1. Other service request (RAOSREQ). The counter will be stepped for cause value 111x xxxx, Originating call and TCH/F is needed, or originating call and the network does not set NE
38、CI bit to 1. All other cases (RAOTHER). The counter will be stepped for cause value 000x xxxx, Location updating (SDCCH needed). IfNECI=1:(现网设置现网设置)Answer to paging (RAANPAG). The counter will be stepped for cause value 100x xxxx, Answer to paging. Emergency call (RAEMCAL). The counter will be stepp
39、ed for cause value 101x xxxx, Emergency call. Call reestablishment (RACALRE). The counter will be stepped for cause value 110x xxxx, Call reestablishment, TCH/F was in use, or TCH/H was in use but the network does not set NECI bit to 1. Other service request (RAOSREQ). The counter will be stepped fo
40、r cause value 111x xxxx, Originating call and TCH/F is needed, or originating call and NECI bit not set to 1, or procedures that can be completed with an SDCCH and NECI bit not set to 1. All other cases (RAOTHER). The counter will be stepped for cause value 0000 xxxx, Location updating (SDCCH needed
41、).Random Access随机接入(RANDOMACC)Page 31Random Access随机接入(RANDOMACC)Page 32Random Access随机接入(RANDOMACC)Page 33Type Counter name Description PC DP CCALLS Call attempt counter PC DJ CCONGS Congestion counter PC DJ CTCONGS SDCCH congestion time PC DP CTRALACC Traffic level accumulator PC CNSCAN Number of
42、accumulations of SDCCH traffic level counter. PC CNDROP Dropped connections due to failure. ST DP CNUCHCNT Number of defined channels PC DP CAVAACC Available channels accumulator PC CAVASCAN Number of accumulations of available channels counter. PC DP CMSESTAB Successful MS channel establishment on
43、SDCCHs. PC DP CNRELCONG Number of SDCCHs released due to radio resource congestion. Traffic Measurement for SDCCH per CellCLSDCCHPage 34Traffic Measurement for SDCCH per CellCLSDCCHPage 35Traffic Measurement for SDCCH per CellCLSDCCHPage 36Type Counter name Description PC CDISQA Dropped connections
44、at bad quality down or up link per cell PC CDISSS1 Dropped connections for power class 1 MSs, at low signal strength down or up link. PC CDISSS2 Dropped connections for power class 2 MSs, at low signal strength down or up link. PC CDISSS3 Dropped connections for power class 3 MSs, at low signal stre
45、ngth down or up link. PC CDISSS4 Dropped connections for power class 4 MSs, at low signal strength down or up link. PC CDISSS5 Dropped connections for power class 5 MSs, at low signal strength down or up link. PC CDISTA Dropped connections at excessive TA PC CDISQASUB Dropped connections at bad qual
46、ity down or up link per overlaid subcell PC CDISSS Dropped connections at low signal strength down or up link per cell. PC CDISSSSUB Dropped connections at low signal strength down or up link per overlaid subcell. Measurements For Dropped Connections on SDCCH per CellSDCCH 掉话统计CELLCCHDRPage 37Measur
47、ements For Dropped Connections on SDCCH per CellSDCCH 掉话统计CELLCCHDRPage 38Measurements For Dropped Connections on SDCCH per CellSDCCH 掉话统计Page 39SDCCHHandover(SDCCH切换切换)CELLCCHHOType Counter name Description ID ID1 Global cell pointer to the serving cell PC CCHHOCNT SDCCH handover attempts PC CCHHOS
48、UC Successful SDCCH handover attempts. PC CCHHOTOCH SDCCH handover attempts return to old channel. Page 40TCH相关统计Page 41Traffic Measurement for TCH per Cell(CLTCH)Type Counter name Description ST DP TNUCHCNT Number of defined channels ST DP TNUCHSUB Number of defined channels in overlaid subcell PC
49、DP TAVAACC Available BPCs for traffic channels accumulator PC TAVASCAN Number of accumulations of available BPCs for traffic channels counter PC DP TAVASUB Available BPCs for traffic channels accumulator for overlaid subcell PC TAVASCANSUB Number of accumulations of available BPCs for traffic channe
50、ls counter for overlaid subcell PC TASSALL Assignment attempts for all MS power classes. Successful attempts are counted in the target cell and failed attempts are counted in the serving cell. PC NONAVFCH Number of attempts to allocate channels of TCH/F type when no channels of that type are defined
51、. PC NONAVHCH Number of attempts to allocate channels of TCH/H type when no channels of that type are defined. PC TASSATT Number of assignment attempts on TCH Incremented always in the target cell. PC TCHSIG Number of TCH connections for signalling Page 42Traffic Measurement for TCH per Cell(CLTCH)T
52、CHSIGPage 43Type Counter name Description PC DJ TFNDROP Dropped connections due to failure. PC DJ TFCASSALL Assignment complete for all MS power classes PC DP TFMSESTB Successful MS channel establishment on TCHs PC DP TFMSESTBSUB Successful MS channel establishment on TCHs for overlaid subcell PC DP
53、 TFCALLS Call attempt counter PC DP TFCALLSSUB Call attempt counter for overlaid subcell PC DJ TFTCONGS TCH congestion time PC DJ TFTCONSUB TCH congestion time for overlaid subcell PC DP TFTRALACC Traffic level accumulator PC TFNSCAN Number of accumulations of traffic level counter PC DP TFTRALSUB T
54、CH traffic level accumulated in overlaid subcell. PC DJ TFNDROPSUB Dropped connections in overlaid subcell due to failure. PC DJ TFCASSALLSUB Assignment complete in overlaid subcell for all MS power classes. PC DJ TFCONGSAS Number of congestion at assignment PC DJ TFCONGSASSUB Number of congestion a
55、t assignment in overlaid subcell PC DJ TFCONGSHO Number of congestion at handover PC DJ TFCONGSHOSUB Number of congestion at handover in overlaid subcell PC DJ TFNRELCONG Number of released TCH due to radio resource congestion. PC DJ TFNRELCONGSUB Number of released TCH due to radio resource congest
56、ion in overlaid subcell. PC DJ TFTHARDCONGS Counts the time when all radio resources are occupied (hard congestion) PC DJ TFTHARDCONGSSUB Counts the time when all radio resources are occupied (hard congestion) in the overlaid subcell Measurements for Traffic Channels for Full Rate and hale Rate Conn
57、ections Per Cell(CELTCHF)Page 44Measurements for Traffic Channels for Full Rate and hale Rate Connections Per Cell(CELTCHF)Page 45Measurements for Dropped Connections on TCH per Cell(CLTCHDRH)Type Counter name Description PC TFDISTA Dropped connections at excessive TA PC TFDISSS1 Dropped connections
58、 for classmark 1 MSs, at low signal strength downlink or uplink PC TFDISSS2 Dropped connections for classmark 2 MSs, at low signal strength downlink or uplink PC TFDISSS3 Dropped connections for classmark 3 MSs, at low signal strength downlink or uplink PC TFDISSS4 Dropped connections for classmark
59、4 MSs, at low signal strength downlink or uplink PC TFDISSS5 Dropped connections for classmark 5 MSs, at low signal strength downlink or uplink PC DJ TFSUDLOS Suddenly lost connections PC DJ TFSUDLOSSUB Suddenly lost connections in overlaid subcell PC DJ TFDISSDL Dropped connections at low signal st
60、rength downlink PC DJ TFDISSDLSUB Dropped connections at low signal strength downlink in overlaid subcell PC DJ TFDISSUL Dropped connections at low signal strength uplink PC DJ TFDISSULSUB Dropped connections at low signal strength uplink in overlaid subcell PC DJ TFDISSBL Dropped connections at low
61、 signal strength bothlink PC DJ TFDISSBLSUB Dropped connections at low signal strength bothlink in overlaid subcell PC DJ TFDISQADL Dropped connections at bad quality downlink PC DJ TFDISQADLSUB Dropped connections at bad quality downlink in overlaid subcell PC DJ TFDISQAUL Dropped connections at ba
62、d quality uplink PC DJ TFDISQAULSUB Dropped connections at bad quality uplink in overlaid subcell PC DJ TFDISQABL Dropped connections at bad quality bothlink PC DJ TFDISQABLSUB Dropped connections at bad quality bothlink in overlaid subcell Page 46Measurements for Dropped Connections on TCH per Cell
63、(CLTCHDRH)Page 47CNROCNT(3E) RAOSREQ(43) CCALLS(A4) CMSESTAB(35) TFCALLS(B0) TFMSESTB(25)TASSALL(47) TASSATT(118) TFCASSALL(4A)正常呼叫相关计数器:CNROCNT(3E) RAOSREQ(43) CCALLS(A4) CMSESTAB(35)TFCALLS(B0) TFCONGSAS(AE) TFCALLS(B0) TFCONGSAS(AE) TCH拥塞时相关计数器变化:Page 48Handover切换统计Page 49Handover to Neighbouring
64、 Internal Cell( NICELHO)Handover to Neighbouring External Cell( NECELHO)Type Counter-name Description PC HOTOLCL Number of handovers to better L-cell PC HOTOKCL Number of handovers to better K-cell PC HOUPLQA Number of handovers at bad uplink quality with or without bad downlink quality PC HODWNQA N
65、umber of handovers at bad downlink quality PC HOEXCTA Number of handovers due to exceeded time alignment PC HODUPFT Number of successful handover back to old channel within a predefined time PC HOTOHCS Number of handover attempts to a HCS prioritised neighbour. Page 50Handover to Neighbouring Intern
66、al Cell( NCELLREL)Handover to Neighbouring External Cell( NECELLREL)Type Counter name Description PC HOVERCNT Number of handover commands sent to the neighbouring cell PC HOVERSUC Number of successful handovers to the neighbouring cell PC HORTTOCH Number of handover attempts where MS returns to the
67、old channel. Page 51Assignment Handovers to Neighbouring External Cell(NECELASS)Assignment Handovers to Neighbouring Internal Cell(NICELASS)Type Counter name Description PC HOASBCL Number of assignment handovers to better cell PC HOASWCL Number of assignment handovers to worse cell PC HOSUCBCL Numbe
68、r of successful assignment handovers to better cell PC HOSUCWCL Number of successful assignment handovers to worse cell Page 52Intra Cell Handover Measurements per Cell(CELEVENTI)Type Counter name Description ID ID1 Global cell pointer to the serving cell PC HOINUQA Number of intra cell handover att
69、empts at bad uplink quality. PC HOINDQA Number of intra cell handover attempts at bad downlink quality. PC HOINBQA Number of intra cell handover attempts at bad quality in both links. PC HOINSUC Number of successful intra cell handovers. PC HOINBOCH Number of unsuccessful intra cell handover attempts, MS back on old channel. Page 53正常切换相应计数器变化:HOTOKCL(1B:8F) TFCALLS(B0)HOVERCNT(95) TFMSESTB(25)HOVERSUC(1B:97)切换目标小区拥塞时相应计数器变化:Page 54请参阅: 怎样阅读理解有关的内容? 怎样定义收集和处理感兴趣的计数器统计? 怎样根据收集的数据进行相关的分析,指导网络问题的分析和优化
