176207054 pchr drop cause
TRANSCRIPT
-
8/20/2019 176207054 PCHR Drop Cause
1/29
SUMMARY
1.1 RR_ERR_RNCAP_RLC_FAILURE_SRB_RST
1.2 RR_ERR_RNCAP_RLC_ FAILURE_TRB_RST
1.3 RR_ERR_IUB_INTERFACE_PERMANENT_RL_FAILURE
1.4 RR_ERR_RNCAP_RB_WAIT_UE_RB_CFG_TIMEOUT
1.5 RR_ERR_RNCAP_CU_WAIT_UE_RSP_TIMEOUT
1.6 RR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
1.7 RR_ERR_RNCAP_RC_REL_MACD_STATUS_ERR
1.8 RR_ERR_RNCAP_DEL_OLD_CCB
1.9 RR_ERR_RNCAP_RRC_UE_RSP_TIMEOUT
1.10 RR_ERR_IU_INTERFACE_RELOC_CANCELLED
1.11 RR_ERR_IU_INTERFACE_FAIL_IN_RADIO_INTERF_PROC
1.12 RR_ERR_RNCAP_RELOC_PHY_CH_RECFG_CMP_TIMEOUT
1.13 RR_ERR_IU_INTERFACE_UNSPECIFIED_FAIL
1.14 RR_ERR_IU_INTERFACE_TIMER_RELOC_CMP_EXPIRY1.15 RR_ERR_RNCAP_RL_CAUSE_NODEB_TIMEOUT
1.16 RR_ERR_IUB_INTERFACE_CAUSE_RADIO_NW_UNSPECIFIED
1.17 RR_ERR_UU_INTERFACE_INVALID_CFG_ERR_NULL_TYPE
1.18 NBM_CRA_CELL_RR_CRM_FAIL
1.19 RR_ERR_RNCAP_RB_CU_OVERLAP_BACK
1.20 RR_ERR_RNCAP_RRC_MAIN_ABNORMAL_ERR
1.21 RR_ERR_IUB_INTERFACE_REQUESTED_CONFIGURATION_NOT_SUPPORTED
1.22 RR_ERR_RNCAP_HHO_PHYCH_RECFG_TIMEOUT
1.23 RR_ERR_UU_INTERFACE_PH_CH_FAIL_ERR_NULL_TYPE
1.24 RR_ERR_IU_INTERFACE_NO_RSRC_AVAIL
1.25 RR_ERR_RNCAP_ALCFG_IU_AAL2_FAILURE
1.26 RR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
1.27 RR_ERR_IUB_INTERFACE_TRANSP_RESOURCE_UNVAILABLE
1.28 L2ERR_FPMDC_TR_SYN_NO_RESPONSE_AFTER_MAX_RETRY
1.29 RR_ERR_UU_IRCFC_PROTCL_ERROR_ERR_BEGIN
1.30 RR_ERR_UU_IRHFC_PROTCL_ERR_BEGIN
1.31 RR_ERR_IU_INTERFACE_REL_DUE_TO_UE_GEN_SIG_CONN_REL
1.32 RR_ERR_IU_INTERFACE_OM_INTERVENTION
1.33 RR_ERR_IU_INTERFACE_REQUESTED_INFO_NOT_AVAIL
1.34 RR_ERR_IU_INTERFACE_UNKNOWN_TARGET_RNC
1.35 RR_ERR_IU_INTERFACE_RELOC_FAIL_IN_TARGET_CN_RNC_OR_TARGET_SYS
1.36 NBM_CRA_CELL_RR_FAIL
1.37 NBM_IUB_RESET1.38 RR_ERR_RNCAP_CU_CELLFACH_NOT_FIND_PROC
-
8/20/2019 176207054 PCHR Drop Cause
2/29
1.1 RR_ERR_RNCAP_RLC_FAILURE_SRB_RST
Failure error
code
RR_ERR_RNCAP_RLC_FAILURE_SRB_RST
436799455
Failure reasons
Release the bearer signaling the RLC Reset occurs, usually
because of the poor quality of empty, RLC kept retransmission
resulting reset.。
Failure flowchart
UE RNC CN
IU RELEASE REQ
(Radio Connection With UE Lost)
RRC CELL UPDATE
(signalling rlc unrecovrable err)
IU RELEASE COMMAND
Root due to the
Find method
First, you can determine the upstream or downstream
problems. May lead to downstream signaling downstream quality
problems can not be issued. May also lead to signaling
the RLC packets of ACK can not reported due to uplink quality
problems. Can by PCHR field BLER to determine whether the
uplink BLER higher. Can also check the total number of packets
dropped call signaling transport channel receiver and wrong to judge
by the number of packets the uplink that you have received the
wrong package. Also can refer to the same time period in the plot
log ISCPmeasurement value (ISCP higher system outside
interference over large lead RLC can not receive the the
uplink ACKpacket). If the UE reported downlink BLER, you can also
look at the the downlink BLER is too high then the UE is unable to
close the whole downstream signaling packets.
PCHR concern I
E
Plot log corresponding slot UL ISCP value, path: district Logs -
> cell -> carrier -> timeslot -> UL ISCP
RRC release information block dropped calls before signaling
transport channel in the wrong package number, UL / DL BLER. The
path to: user log -> RRC release -> exception information -> UL / DL
BLER + the total number of packets dropped call signaling transport
channel receiver + dropped call signaling transport channel received
the wrong number of blocks.
-
8/20/2019 176207054 PCHR Drop Cause
3/29
1.2 RR_ERR_RNCAP_RLC_FAILURE_TRB_RST
Failure error
code
RR_ERR_RNCAP_RLC_FAILURE_TRB_RST
436799456
Failure reasons
Lead to the release of the bearer service RLC reset occurs, usually
because of the poor quality of empty, RLC kept retransmission
resulting reset.
Failure flowchart
UE RNC CN
IURELEASEREQ
(RadioConnectionWithUELost)
RRCCELLUPDATE
(Trafficrlcunrecovrableerr)
IURELEASECOMMAND
Root due to the
Find method
The similar reasons same
RR_ERR_RNCAP_RLC_FAILURE_SRB_RST difference in that the
object is a business of the RLC, the need to check the total number
of blocks and the wrong block number as well as uplink service
the BLER RAB information block the link release uplink received.
PCHR
CONCERN IE
The RAB information block link release uplink reception before the
total number of blocks / wrong number of blocks,
the UL business the BLER. The path to: user log ->
RABinformation -> exception information -> UL BLER the link before
release in the number of each grade range + RAB block upstream
receiving total number of blocks / wrong number of blocks.
-
8/20/2019 176207054 PCHR Drop Cause
4/29
1.3RR_ERR_IUB_INTERFACE_PERMANENT_RL_FAILURE
Failure error
code
RR_ERR_IUB_INTERFACE_PERMANENT_RL_FAILURE
436996134
Failure reasonsReceived the the NODE B reported the RL FAILURE IND, uplink
radio link synchronization fails
Failure flowchart
NODEB RNC CN
IURELEASEREQ
NBAP_RL_FAILURE_IND
IURELEASECOMMAND
WatRLrestore
tmeout
Root due to the
Find method
The cause is usually due to the decline in the quality of the airinterface link uplink radio link synchronization failure generally
occurs this error appears BLER elevated.Dropped calls can be
checked before the the PCHR plot logISCP. ISCP higher system
interference may lead; otherwise might cover problem
PCHR
CONCERN IE
Plot log corresponding slot UL ISCP value, path: district Logs -
> cell -> carrier -> timeslot -> UL ISCP
User downlink transmission code link release power T
CPvalues, the path to: user log -> RRC release -> exception
information -> DL TCP number of reports -> TCP.
-
8/20/2019 176207054 PCHR Drop Cause
5/29
1.4RR_ERR_RNCAP_RB_WAIT_UE_RB_CFG_TIMEOUT
Failure errorcode
RR_ERR_RNCAP_RB_WAIT_UE_RB_CFG_TIMEOUT
437127146
Failure reasonsDCCC, business release / build process release Ue not
returnRB Reconfiguration Complete message
Failure flowchart
RNC CN
IU RELEASE REQ
(Failure in the Radio Interface)
Radio bear reconfig/
Phy channel reconfig
UE
Uu Interface
Timeout
IU RELEASE COMMAND
IU RELEASE COMPLETE
Root due to the
Find method
This situation generally, there are two possibilities, one is a
configuration message in the UE in the old link is not receivedfull RB Another situation is that the UE back to theRB configuration
response message, but due to the problem of the quality or the
transmission of the uplink, the RNC in the new The link did not
receive a response message.
(Or DCCC failed before failure) signaling transport channel to
the wrong number of packets to determine whether the uplink
problem created by the the uplink BLER well RAB of PCHR
RAB establishment
failure (, or DCCC failure) RLCretransmission rate can also check to
determine whether theUE not readily receive
messages RB configuration RLCretransmission rate is too high
PCHR
CONCERN IE
RRC release block UL BLER, the SRB2 RLC retransmission rate,
the wrong number of packets received by the transmission
channel / total number of packets. Path: user log-> RRC release -
> Exceptions -> UL / DL BLER + the total number of packets
dropped call signaling transport channel receiver+ signaling
transport channel dropped calls before receiving the wrong number
of blocks + SRB2 RLC retransmission rate.
-
8/20/2019 176207054 PCHR Drop Cause
6/29
1.5 RR_ERR_RNCAP_CU_WAIT_UE_RSP_TIMEOUT
Failure error
code
RR_ERR_RNCAP_CU_WAIT_UE_RSP_TIMEOUT
437127131
Failure reasonsConfigured response timeout waiting for empty cell update
procedure RNC issued CELL UPDATE CONFIRM
Failure flowchart
RNC CN
IU RELEASE REQ
(Failure in the Radio Interface)
Cell Update Confirm(Rb
Recfg/Ph Recfg)
UE
Uu Interface
Timeout
IU RELEASE COMMAND
Cell Update
Root due to the
Find method
This situation is similar to the error 1.4. The different is that
the CELL UPDATE CONFIRM is in the common channel through
the UM mode hair. It can only check the uplink. The cell update
failed general will cause RRC release RRCrelease signaling
transport channel, you can check the wrong number of packages
and the total number of packets. If the total number of packets
to 0, then the UE no response message on the hair, is likely to be
the downlink UE does not receive configuration information leading
to.
PCHR
CONCERN IE
RRC release the block UL BLER, the total number of packets
dropped call signaling transport channel receiver / wrong number of
packages. The path to: user log -> RRC release ->exception
information -> UL / DL BLER + the total number of packets dropped
call signaling transport channel receiver +dropped call signaling
transport channel received the wrong number of blocks.
-
8/20/2019 176207054 PCHR Drop Cause
7/29
1.6 RR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
Failure error
code
RR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
436603622
Failure reasonsN ODE B initiated the IUB mouth AAL 2 release, trigger business
release
Failure flowchart
NODEB RNC CN
IURELEASEREQ
NBAP_RL_FAILURE_IND
IURELEASECOMMAND
QAAL2_RELEASE_REQ
释 释 AAL2释 释释 释 释
Root due to the
Find method
The cause is usually due to the decline in the quality of the air
interface link uplink radio link synchronization failure generally
occurs this error appears BLER elevated.Dropped calls can be
checked before the the PCHR plot logISCP. ISCP higher systeminterference may lead; otherwise might cover problem
PCHR
CONCERN IE
Corresponding slot UL ISCP value plot log path: the plot log-
> Cell -> carrier -> -> UL ISCP slot;
User downlink transmission code link release power
the TCPvalue, path: users log -> RRC release -> Exceptions -> DL
TCPnumber of reports -> TCP.
-
8/20/2019 176207054 PCHR Drop Cause
8/29
1.7 RR_ERR_RNCAP_RC_REL_MACD_STATUS_ERR
Failure error
code
RR_ERR_RNCAP_RC_REL_MACD_STATUS_ERR
436799446
Failure reasons L2 MACD reported abnormal status report led business release
Failure flowchartNo
Root due to the
Find method
The error code L2 MACD reported exception error collectively,
for specific error root causes need to see the the
original MACD returned error code to determine the specific cause.
If this type of error occurs, submitted in
the PR platform(w ww.support.td-tech.com) the RNC Technology
Consulting single details refer to Overview section.
PCHR
CONCERN IE
L2 abnormalities cause value coding. Path: user log -> RAB,
RRC release information -> exception information -> L2Abnormal
values encoded
-
8/20/2019 176207054 PCHR Drop Cause
9/29
1.8 RR_ERR_RNCAP_DEL_OLD_CCB
Failure error
code
RR_ERR_RNCAP_DEL_OLD_CCB
437127121
Failure reasons
User actually has dropped calls, but the network side resources has
not been completely emptied, the the UE again initiates a
connection leading to the user once the connection is released.
Failure flowchart
UE RNC CN
RrcConnReq(SameIMSI释
RelocationRequired
RelocationPreparefailure
RrcConnRel
(Redirectsignalconnreq)
CommonID(SameIMSI释
IuReleaseReq
Root due to the
Find method
Usually situation may be due to the lost contact, the UE and the
network side initiates a service, or the user to re-enable the UE to
re-initiate the RRC connection, and the RNCside is not the user
resource release. Also a small part of the reason is lead by
the DSCR, in LCR 5.0 advised to turn off the DSCR function.
23G switch (or RNC switch between) failed in the RNC the
border or 3G coverage boundary cell, RNC to the UE initiateDSCR
UE still from 3G original cell access (or the surrounding adjacent
cell access), when the RNC found access a repeat
user IMSI number, old user initiated release.
If 23G switch (or RNC switch between) success, UE and rapid
source cell from the switch will occur the IMSI conflict, initiated by
the release.
Whether in the then system dropped calls, you need to see
whether IU REL REQ message, if not is not counted as dropped
calls; IU REL REQ message, but the carrying value of the reason is
the normal release, does not count as a dropped call .
-
8/20/2019 176207054 PCHR Drop Cause
10/29
PCHR
CONCERN IE
SRB RLC Reset times. The path to: user log -> RRC release ->
RRC release head -> UL / DL the SRB RLC the Reset Views.
1.9 RR_ERR_RNCAP_RRC_UE_RSP_TIMEOUT
Failure error
code
RR_ERR_RNCAP_RRC_UE_RSP_TIMEOUT
437127122
Failure reasonsTimeout waiting for RRC CONN CMP news, RRC connection
establishment failure
Failure flowchart
RNC CN
RRCCONNSETUP
UE
UuInterface
Timeout
RRCCONNREQ
RelRrcResource
Root due to the
Find method
CELL UPDATE similar UE has not received the RRC
CONN SETUP message, also possible that the UE back to
the RRC CONN CMP message, the RNC side is not received.
The signaling transport access failure by examining the
signaling channel to receive the total number of packets and the
wrong number of packages to determine the upstream, or
downstream problems.
PCHR
CONCERN IE
The uplink SIR TARGET, the total number of packets received
signaling transport channel signaling access failure / wrong number
of packages. The path to: user log -> RRC release ->exception
information -> UL SIR + signaling transport channel receiver
dropped calls, total number of packets + dropped calls before
signaling transmission channel received the wrong block number.
-
8/20/2019 176207054 PCHR Drop Cause
11/29
1.10RR_ERR_IU_INTERFACE_RELOC_CANCELLED
Failure error
code
RR_ERR_IU_INTERFACE_RELOC_CANCELLED
437127122
Failure reasons
In the TRNC side, the core network IU REL CMD message received
in the process of waiting for Ue response, including reasons for
value CANCELL this case most SRNCBecause some exceptions
sent to the CN the RELOC CANCELLmessage
Failure flowchartno
Root due to the
Find method
Since the actual cause of the error occurred in the SRNC,the need
to by IMSI match view the log corresponding SRNC to confirm the
specific reasons.
PCHR
CONCERN IE
1.11RR_ERR_IU_INTERFACE_FAIL_IN_RADIO_INTERF_PROC
Failure error
code
RR_ERR_IU_INTERFACE_FAIL_IN_RADIO_INTERF_PROC
436930539
Failure reasonsUsually during the migration process, DRNC side response timeout
waiting empty core network notification SRNC side migration failed.
Failure flowchartno
Root due to the
Find method
SRNC side check whether the air interface signaling successfully
issued. The quality of the the DRNC side check the uplink, whether
received uplink Reconfiguration Complete message. Check method
reference 1.4 Error code processing method.
-
8/20/2019 176207054 PCHR Drop Cause
12/29
PCHR
CONCERN IE
The DRNC side UL wrong package, SRNC side RLCretransmission
rate. The path to: user log -> RRC release ->exception information -
> dropped calls SRB2 RLC downlink retransmission rate + total
number of packets dropped call signaling transport channel
receiver + dropped call signaling transport channel received the
wrong number of blocks.
1.12RR_ERR_RNCAP_RELOC_PHY_CH_RECFG_CMP_TIMEOUT
Failure error
codeRR_ERR_RNCAP_RELOC_PHY_CH_RECFG_CMP_TIMEOUT
437127139
Failure reasonsThe DRNC side of the waiting empty response timeout, notice the
release of the core network IU link
Failure flowchart no
Root due to the
Find method
SRNC side check whether the air interface signaling successfully
issued. The quality of the the DRNC side check the uplink, whether
received uplink Reconfiguration Complete message. Check methodreference 1.4 Error code processing method.
PCHR
CONCERN IE
The DRNC side UL wrong package, SRNC side RLCretransmission
rate. Path: user log -> RRC release ->Exceptions -> SRB2
RLC downlink retransmission rate + dropped calls dropped calls
before signaling transport channel receives the total number of
packets + dropped calls before signaling transmission channel
received the wrong number of blocks .
1.13 RR_ERR_IU_INTERFACE_UNSPECIFIED_FAIL
Failure error
code
RR_ERR_IU_INTERFACE_UNSPECIFIED_FAIL
436930640
Failure reasons
The under hair IU REL CMD message 1.CN release cause
valueUNSPECIFIED_FAIL
The migration process, DRNC to the SRNC back migration
-
8/20/2019 176207054 PCHR Drop Cause
13/29
failed because the value UNSPECIFIED_FAIL
UNSPECIFIED_FAIL
Failure flowchart no
Root due to the
Find method
1, View forward pass the message carries the release cause;
2, the DRNC migration ready error occurred, but the cause of
the error is not classified, by IMSI match the specific reason for the
failure in the view the DRNC side of thePCHR.
PCHR
CONCERN IE
1.14RR_ERR_IU_INTERFACE_TIMER_RELOC_CMP_EXPIRY
Failure error
code
RR_ERR_IU_INTERFACE_TIMER_RELOC_CMP_EXPIRY
436930529
Failure reasons
CS disparate systems switch received the news of the IU RELEASE
CMD of the core network, because the value
IU_TRELOCCOMPLETE_EXPIRY
Failure flowchartno
Root due to the
Find method
The possible core network does not receive disparate systems side
the RELOC COMPELETE message timeout after the release
of IU links. Need to see CN log, DRNC side log / BSCside of the log.
PCHR
CONCERN IE
1.15RR_ERR_RNCAP_RL_CAUSE_NODEB_TIMEOUT
Failure error RR_ERR_RNCAP_RL_CAUSE_NODEB_TIMEOUT
-
8/20/2019 176207054 PCHR Drop Cause
14/29
code 436996049
Failure reasonsThe IUB mouth waiting the RL to establish
or RLRECONFIGURATION response timeout
Failure flowchartno
Root due to the
Find method
NODE B greater probability of failure, the need to view theNODE B
the ROSA log / CHR log for further analysis.
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
15/29
1.16RR_ERR_IUB_INTERFACE_CAUSE_RADIO_NW_UNSPECIFIED
Failure error
codeRR_ERR_IUB_INTERFACE_CAUSE_RADIO_NW_UNSPECIFIED
436996065
Failure
reasons
RL establish or re-equipped, NODE B back to RL SETUP /
RECFG FAIL, because the value IUB_UNSPEC_CAUSE_RADIO_NW
Failure
flowchart
no
Root due to
the Find
method
NODE B greater probability of failure, the need to view theNODE B
the ROSA log / CHR log for further analysis.
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
16/29
1.17RR_ERR_UU_INTERFACE_INVALID_CFG_ERR_NULL_T YPE
Failure error
codeRR_ERR_UU_INTERFACE_INVALID_CFG_ERR_NULL_TYPE
437127179
Failure reasonsUE returns UU mouth configuration failure message, the reason
is INVALID CONFIGURATION
Failure flowchart
RNC
Radio Bear Setup Req
UE
UE PDP Context
Deactived
Radio Bear Setup Fail(Invalid
Configuration)
Root due to the
Find method
View the signaling process configuration empty message UEdoes
not support, may be related to the configuration state of
the UE, version information and business types. Can view
the UE and the core network of the NAS message interaction, but
also to find the terminal type of IMEI
PCHR
CONCERN IEThe IMEI terminal type
-
8/20/2019 176207054 PCHR Drop Cause
17/29
1.18 NBM_CRA_CELL_RR_CRM_FAIL
Failure error
code
NBM_CRA_CELL_RR_CRM_FAIL
420349909
Failure reasonsDistrict resource access failure or failure of IUB bandwidth
application
Failure flowchartno
Root due to the
Find method
Check the cell log (time slot and code resources) to confirm whether
the code was lack of resources
PCHR
CONCERN IE
The carrier idle RU cell log information, paths: district Logs -> cell -
> Carrier -> R4/HSPA users. And
1.19 RR_ERR_RNCAP_RB_CU_OVERLAP_BACK
Failure error
code
RR_ERR_RNCAP_RB_CU_OVERLAP_BACK
437127148
Failure reasons The RB setup or reconfigurable cell update message is receivedwhen the wait for a response
Failure flowchart
RNC CN
IURELEASEREQ
Radiobearreconfig/
Phychannelreconfig
UE
IURELEASECOMMAND
CellUpdate(rlfailure)
Root due to the
Find method
The reasons this happens with empty response timeout
similar.The Find Reference 1.4.
-
8/20/2019 176207054 PCHR Drop Cause
18/29
PCHR
CONCERN IE
1.20RR_ERR_RNCAP_RRC_MAIN_ABNORMAL_ERR
Failure error
code
RR_ERR_RNCAP_RRC_MAIN_ABNORMAL_ERR
436602845
Failure reasonsReceive process exception error message usually wait for
theAL establishing, leading the AL creation failed
Failure flowchart
no
Root due to the
Find method
This usually is the the L2 error code L2 instances of failure to
establish cause, you can check the record. If this type of error
occurs, submitted in the PR platform (www.support.td-tech.com) the
RNC Technology Consulting single details refer to Overview section.
PCHR
CONCERN IE
L2 causes values encoded path to: user log -> RAB or RRCrelease
information -> exception information -> L2 Abnormal values
encoded.
-
8/20/2019 176207054 PCHR Drop Cause
19/29
1.21 RR_ERR_IUB_INTERFACE_REQUESTED_CONFIGURATION_NOT_SUPPORTED
Failure error
code
RR_ERR_IUB_INTERFACE_REQUESTED_CONFIGURATION_NO
T_SUPPORTED
436996060
Failure reasonsRL establish or re-configuration process, NODE B returns the
requested configuration is not supported.
Failure flowchart
RNC CN
RadioLinkReconfigurePrepare
NODEB
RabAssignmentReq
RadioLinkReconfigurePrepareFailure
(requestedconfigurationnotsupport)
RabAssignmentRsp(fail)
Root due to the
Find methodNODE B fault and configuration errors likely View NODE
B related ROSAlog / CHR log for further analysis.
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
20/29
1.22RR_ERR_RNCAP_HHO_PHYCH_RECFG_TIMEOUT
Failure error
code
RR_ERR_RNCAP_HHO_PHYCH_RECFG_TIMEOUT
437127127
Failure reasonsSwitching process hollow mouth physical channel reconfiguration
message response timeout waiting for empty
Failure flowchart
RNC CN
Radiobearreconfig/
Phychannelreconfig
UE
UuInterface
Timeout
RrcMeasRprt
TriggerHho
Procedure
HhoProcedure
Failure
Root due to the
Find method
This situation is typical RB reconfiguration response Timeout
similar. Check the switch fails before the RLC retransmission rate, to
determine whether the downstream problems.
Check the switch failed before the target cell signaling transport
channel of the total number of packets received and the number of
error packets, judgment whether uplink.
According to the type of switch (the same frequency /different
frequency), and reported a measurement report, it is judged whether
it is due to the same frequency interference or override causes
PCHR
CONCERN IE
Switch fails before the RLC retransmission rate, the total number of
packets received before the target cell signaling transport channel
switching failure and the wrong number of
packages. Path: PCHR users log -> system and system switch -
>exception information -> the wrong number of packets received
before the failure of the SRB RLC retransmission rate and switching
signaling transport channel and the total number of packets.
-
8/20/2019 176207054 PCHR Drop Cause
21/29
1.23RR_ERR_UU_INTERFACE_PH_CH_FAIL_ERR_NULL_TYPE
Failure error
code
RR_ERR_UU_INTERFACE_PH_CH_FAIL_ERR_NULL_TYPE
437127156
Failure reasonsSwitching process hollow mouth to receive the physical channel
failure message message due to PHY_CH_FAIL.
Failure flowchart
RNC
radiobearreconfig/
phychannelreconfig
UE
RrcMeasRprt
TriggerHho
Procedure
HhoProcedure
Failure
phychannelreconfigFail(physicalchannelfailure)
Root due to the
Find method
This case Usually for UE new configuration activation in thenew cell synchronization failure, poor quality of the new cell
empty, the UE can not do uplink synchronization also likely is the
cell synchronization channel configuration problems, cell
synchronization letter Road (UpPCH can be checked / FPACH) is
configured properly. Or the ISCPinterference checking UpPTS.
Is also possible that the dedicated channel is a downlink
synchronization problems.
PCHRCONCERN IE
The cell log UPPCHR ISCP values path is: plot log -> cell ->
UPPCH ISCP.
-
8/20/2019 176207054 PCHR Drop Cause
22/29
1.24 RR_ERR_IU_INTERFACE_NO_RSRC_AVAIL
Failure error
code
RR_ERR_IU_INTERFACE_NO_RSRC_AVAIL
436930639
Failure reasons
SRNC initiated migration prepare failure message is received after
the migration of the core network ready, because the the DRNC side
does not have the resources.Possible reasons: no
available license; unable to obtain theCCB table.
Failure flowchartno
Root due to the
Find method
Check the the DRNC side PCHR log, see if the user is denied due to
the code resource issues or the number of users limit migration into.
PCHR
CONCERN IE
The DRNC side corresponding to user error. The path to: user log ->
the RAB information / RRC release -> exception error code.
1.25 RR_ERR_RNCAP_ALCFG_IU_AAL2_FAILURE
Failure error
codeRR_ERR_RNCAP_ALCFG_IU_AAL2_FAILURE
Failure reasonsIu interface ATM configuration, the Iu interface board
instructions AL carrying abnormal release since Rab release
Failure flowchartno
Root due to the
Find method
Check the the RNC alarm information, to see if abnormal
alarm Iu interface board.
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
23/29
1.26 RR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
Failure error
codeRR_ERR_RNCAP_ALCFG_IUB_AAL2_FAILURE
Failure reasonsIub mouth ATM configuration, As the Iub interface board
instructions AL carrying abnormal cause Rab release
Failure flowchartno
Root due to the
Find method
Check the RNC alarm information, to see if there are abnormal
alarm Iub interface board
PCHR
CONCERN IE
1.27 RR_ERR_IUB_INTERFACE_TRANSP_RESOURCE_UNVAILABLE
Failure error
codeRR_ERR_IUB_INTERFACE_TRANSP_RESOURCE_UNVAILABLE
436996111
Failure
reasons
Business establishment process, the establishment of the Iubmouth
the AL bearing failure, because Iub transport resources available
Failure
flowchart
no
Root due to
the Find
method
The users check specify Iub mouth, carrying configuration(AAL2PATH
(ATM configuration) IPPATH (IP configuration)), see if available
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
24/29
1.28 L2ERR_FPMDC_TR_SYN_NO_RESPONSE_AFTER_MAX_RETRY
Failure errorcode L2ERR_FPMDC_TR_SYN_NO_RESPONSE_AFTER_MAX_RETRY
Failure
reasons
Failed the Iub port synchronous transmission channel, why is not
received NodeB response
Failure
flowchart
no
Root due to
the Find
method
NODE B received transmission synchronization request will back the
response, such failures are out in the transmission itself. RNC and
NodeB transmission channel on both sides need to check thesynchronization-related settings.
PCHR
CONCERN
IE
1.29 RR_ERR_UU_IRCFC_PROTCL_ERROR_ERR_B
EGINFailure error
code
RR_ERR_UU_IRCFC_PROTCL_ERROR_ERR_BEGIN~RR_ERR_UU_IR
CFC_PROTCL_ERROR_ERR_END
Failure
reasons
PS domain inter-system handover failure because the UE sends
HANDOVER FROM UTRAN FAILURE, the reasons value is one of the
following:
Configuration unacceptable,
physical channel failure,
protocol error,
unspecified
Failure
flowchart
无
Root due to
the Find
method
If the reason the majority of the "physical channel failure", are generally
in 23G edge, empty of poor quality, or 2G cell congestion and other
reasons;
For other reasons, you can view the protocol version supported by the UE,
-
8/20/2019 176207054 PCHR Drop Cause
25/29
UE whether to support inter-system handover. Contact terminal
manufacturers to solve.
PCHR
CONCERN IE
1.30 RR_ERR_UU_IRHFC_PROTCL_ERR_BEGIN
Failure error
code
RR_ERR_UU_IRCFC_PROTCL_ERROR_ERR_BEGIN
~RR_ERR_UU_IRCFC_PROTCL_ERROR_ERR_END
Failure reasons
PS domain inter-system handover failure because the UE sends
HANDOVER FROM UTRAN FAILURE, the reasons value is one of
the following:
Configuration unacceptable,
physical channel failure,
protocol error,
unspecified
Failure flowchartno
Root due to the
Find method
If the reason the majority of the "physical channel failure", are
generally in 23G edge, empty of poor quality, or 2G cell congestion
and other reasons;
For other reasons, you can view the protocol version supported by
the UE, UE whether to support inter-system handover. Contact
terminal manufacturers to solve.
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
26/29
1.31 RR_ERR_IU_INTERFACE_REL_DUE_TO_UE_GEN_SIG_CONN_REL
Failure error
code
RR_ERR_IU_INTERFACE_REL_DUE_TO_UE_GEN_SIG_CONN_
REL
436930565
Failure reasonsDue to the small amount of data of the UE in a period of time
caused by the IU port release
Failure flowchart
no
Root due to the
Find method
View UE whether there is still pass.
PCHR
CONCERN IE
1.32 RR_ERR_IU_INTERFACE_OM_INTERVENTION
Failure error
code
RR_ERR_IU_INTERFACE_OM_INTERVENTION
436930638
Failure reasons OM干预造成的IU口释放
Failure flowchartno
Root due to the
Find method
OM intervention caused the IU mouth release
PCHR
CONCERN IE
-
8/20/2019 176207054 PCHR Drop Cause
27/29
1.33 RR_ERR_IU_INTERFACE_REQUESTED_INFO_ NOT_AVAIL
Failure errorcode
RR_ERR_IU_INTERFACE_REQUESTED_INFO_NOT_AVAIL
436930567
Failure reasons
Migrated out ready to fail, the reason for the failure occurred when
applying for district resources: NBM_CRA_CELL_RR_FAIL/
NBM_CRA_CELL_CONGEST/ NBM_CRA_CELL_UNAVAIL
Failure flowchartno
Root due to the
Find method
The specific reason for the failure of the target RNC / target system
side
PCHR
CONCERN IE
1.34 RR_ERR_IU_INTERFACE_UNKNOWN_TARGET _RNC
Failure error
code
RR_ERR_IU_INTERFACE_UNKNOWN_TARGET_RNC
436930534
Failure reasons
RNC RELOCATION REQUIRED message is sent to the CN, CN
returned RELOCATION PREPARATION FAILURE message, the
message with the cause value: unknown target RNC
Failure flowchartno
Root due to the
Find method
See RNC RELOCATION REQUIRED message with information of
the target RNC is sent to the CN is correct
PCHR
CONCERN IE
1.35 RR_ERR_IU_INTERFACE_RELOC_FAIL_IN_TARGET_CN_RNC_OR_TARGET_SYS
Failure error RR_ERR_IU_INTERFACE_RELOC_FAIL_IN_TARGET_CN_RNC_
-
8/20/2019 176207054 PCHR Drop Cause
28/29
code OR_TARGET_SYS
436930554
Failure reasons
Side of the target RNC or target system UNSPECIFIED causes of
migration failures, IU mouth because the value of fill forRR_ERR_IU_INTERFACE_RELOC_FAIL_IN_TARGET_CN_RNC_
OR_TARGET_SYS
Failure flowchartno
Root due to the
Find method
View the specific cause of the target RNC or target system side
PCHR
CONCERN IE
1.36 NBM_CRA_CELL_RR_FAIL
Failure error
code
NBM_CRA_CELL_RR_FAIL
420382676
Failure reasons UE requests access code resource allocation module returns afailure, the RNC internal might again try to access.
Failure flowchartno
Root due to the
Find method
Appear this error code may have the following reasons: 1
parameter error, null pointer process anomalies; 2 carrier frequency
code division failed.
PCHR
CONCERN IE
1.37 NBM_IUB_RESET
Failure error
code
NBM_IUB_RESET
420579281
-
8/20/2019 176207054 PCHR Drop Cause
29/29
Failure reasons The IUB interface reset occurred.
Failure flowchart no
Root due to the
Find method
If NBM_IUB_RESET, then the reasons: 1 Delete port; 2 NODE B
has reset release users; the IUB link may flash.
PCHR
CONCERN IE
1.38 RR_ERR_RNCAP_CU_CELLFACH_NOT_FIND_
PROC
Failure error
codeRR_ERR_RNCAP_CU_CELLFACH_NOT_FIND_PROC
Failure reasonsFACH state received cell update can not handle cell update is
discarded waiting for UE redo cell update.
Failure flowchartno
Root due to the
Find method
Need to troubleshoot access cell status is normal, the the access
cell load condition is serious and may cause serious lack of code
resources to the reasons for the failure.
PCHR
CONCERN IE