disconnection codes

RAN_DISCONNECTION

_CODE

RAN_DISCONNECTION

_SUBCODE

Cause Name Disconnection Cause

Code

Disconnection Cause

Sub-Code

Unspecified 0 0

Radio Connection Supervision (RCS) 1 0





Congestion 2 1

Transport 3 0

Transport 3 1

Transport 3 2

Transport 3 3

O&M 4 1

Measurement control failure 5 1




Soft Handover 6 1

Soft Handover 6 2

Soft Handover 6 3

Soft Handover 6 4

Soft Handover 6 5

Soft Handover 6 6

Soft Handover 6 0

Inter Radio Access Technology (IRAT) 7 1

Inter Radio Access Technology (IRAT) 7 2

Inter-Frequency Handover (IFHO) 8 1



Channel Switching 9 1

High Speed Hard Handover 10 1

CN Hard Handover 11 1

Iu User Plane Control 12 1

CN Hard Handover 11 2

Trigger Identity

Paramet

er

Unspecified - all cases which will result in abnormal RAB disconnection

and do not map to any of the ones described below.

-

Other Radio Link Control (RLC) unrecoverable error. -

Radio Link Control (RLC) unrecoverable error in UTRAN (maximum

number of RLC retransmissions is reached).

-

Radio Connection Supervision - expiry of timer (rcsAllRlLostTimer or

rcsCchWaitCuTimer or hsDschRcLostT)

-

Radio link failure indication leading to a release with Cause =

transport.

-

Radio link failure indication leading to a release with cause other than

transport.

-

Congestion action - release triggered by congestion. Cell Id

Transport network failure – All other CELLO_AAL2NCIFAILURE. -

Transport network failure - CELLO_AAL2NCI_TEMP_FAILURE. -

Transport network failure -

CELLO_AAL2NCI_MANAGEMENT_INDUCED.

-

Transport network failure - CELLO_AAL2NCI_OTHER_DC_IND_CAU -

Cell lock indication. Cell Id

MEASUREMENT CONTROL FAILURE that triggers a connection release -

intra-frequency.

-


inter-radio access technology.

-


inter-frequency.

-


traffic volume measurement setup.

Active Set Update complete message not received - addition. Scrambli

ng Code

of Radio

Link to

be

added.Active Set Update complete message not received - deletion. Scrambli

ng Code

of Radio

Link to

be

deleted.Active Set Update complete message not received - replacement. Scrambli

ng Code

of Radio

Link to

be

replaced.

Handover Evaluation release events - _EVENT_BUFFER_EXCEEDED. Scrambli

ng Code

of Radio

Link to

be

added/

removed.

Due to ReleaseConnOffset (for a cell not in the neighbor set). Scrambli

ng Code

of the

cell.High Speed-Downlink Shared Channel (HS-DSCH) Cell Change failure

after A-DCH removal.

-

Other Handover Evaluation failure reasons:

(_UNSPECIFIED_RELEASE_CAUSE, _BUFFER_TIME_EXCEEDED,

_CELL_SYNC_INFO_NOTAVAILABLE)

Scrambli

ng Code

of the

cell.IRAT outgoing failure - Timer T_reloc_overall expires. GSM cell

Id

Cell change outgoing failure Timer T_cellchange expires. GSM cell

Id

IFHO failure - reception of PHYSICAL CHANNEL RECONFIGURATION

FAILURE with cause other than physical channel failure received from

the UE on the source frequency.

Target

cell Id

IFHO failure - at expiry of timer Timer RRC T-PCR. Target

cell Id

IFHO failure - if ciphering is ongoing, and if RBs mapped on TM-RLC

entities have been established, and if a PHYSICAL CHANNEL

RECONFIGURATION COMPLETE message is received that does not

include one or both of the IEs COUNT-C activation time and Uplink

counter synchronization info

Target

cell Id

Transition to a DCH connection has been initiated but can not be

completed

Selection of HS-DSCH connection, including a Hard HO has been

initiated, but can not be completed

timeRelocoverall (MO: Handover) expires.

Relocation preparation procedure fails in source RNC due to either of

the following:

RELOCATION PREPARATION FAILURE received

timeRelocPrep (MO: Handover) expires

ERROR INDICATION with procedure code "Relocation Preparation"

CN Triggered Initialisation Failure

Comments

This event will have all other (not max retransmission) possible Special

purpose Processors RLC unrecoverable errors.

disconnection codes

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