4.12 Circuit switched inter-RAT handover

32.4053GPPPerformance Management (PM)Performance measurementsRelease 17Telecommunication managementTSUniversal Terrestrial Radio Access Network (UTRAN)

4.12.1 Relocation preparation for outgoing circuit switched inter-RAT handovers

4.12.1.0 Introduction

The three measurement types defined in the subclause 4.12.1.n for relocation preparation for outgoing circuit switched inter-RAT handovers are subject to the "2 out of 3 approach".

4.12.1.1 Attempted relocation preparation for outgoing circuit switched inter-RAT handovers

  1. This measurement provides the number of attempted relocation preparations for outgoing circuit switched inter-RAT handovers per neighbour cell.
  2. CC
  3. Transmission of a RANAP message RELOCATION REQUIRED from the serving RNC to the CN, indicating an attempted relocation preparation of an outgoing inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.AttRelocPrepOutCS.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.1.2 Successful relocation preparation for outgoing circuit switched inter-RAT handovers

  1. This measurement provides the number of successful relocation preparations for outgoing circuit switched inter-RAT handovers per neighbour cell.
  2. CC
  3. Receipt of a RANAP message RELOCATION COMMAND sent from the CN to the serving RNC, indicating a successful relocation preparation of an inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.SuccRelocPrepOutCS.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.1.3 Failed relocation preparation for outgoing circuit switched inter-RAT handovers

  1. This measurement provides number of failed relocation preparations for outgoing circuit switched inter-RAT handovers per neighbour cell per cause.
  2. CC
  3. Receipt of a RANAP message RELOCATION PREPARATION FAILURE sent from the CN to the serving RNC, indicating a failed relocation preparation for outgoing inter-RAT handovers. Failure causes are defined within TS 25.413 [5].
    The sum of all supported per cause measurements shall equal the total number of failed events. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first.
  4. Each measurement is an integer value. The number of measurements is equal to the number of causes supported plus a possible sum value identified by the .sum suffix.
  5. The measurement name has the form IRATHO.FailRelocPrepOutCS.Cause
    where Cause identifies the failure cause.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.2 Outgoing circuit switched inter-RAT handovers

4.12.2.0 Introduction

The three measurement types defined in the subclause 4.12.2.n for outgoing circuit switched inter-RAT handovers are subject to the "2 out of 3 approach".

4.12.2.1 Attempted outgoing circuit switched inter-RAT handovers

  1. This measurement provides the number of attempted outgoing circuit switched inter-RAT handovers per neighbour cell from UEs point of view.
  2. CC
  3. Transmission of a RRC-message HANDOVER FROM UTRAN COMMAND from serving RNC to the UE, indicating an attempted outgoing inter-RAT handover (see TS 25.331 [4]).
  4. A single integer value
  5. IRATHO.AttOutCS.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.2.2 Successful outgoing circuit switched inter-RAT handovers

  1. This measurement provides the number of successful outgoing circuit switched inter-RAT handovers per neighbour cell from UEs point of view.
  2. CC
  3. Receipt of a RANAP message IU RELEASE COMMAND sent from the CN to the serving RNC, indicating a successful inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.SuccOutCS.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.2.3 Failed outgoing circuit switched inter-RAT handovers

  1. This measurement provides the number of failed outgoing circuit switched inter-RAT handovers per neighbour cell per cause from UEs point of view, where the UE returned to the original physical channel configuration.
  2. CC
  3. Receipt of a RRC message HANDOVER FROM UTRAN FAILURE sent from the UE to the serving RNC, indicating a failed inter-RAT handover. Failure causes are defined within TS 25.331 [4].
    The sum of all supported per cause measurements shall equal the total number of failed events. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first.
  4. Each measurement is an integer value. The number of measurements is equal to the number of causes supported plus a possible sum value identified by the .sum suffix.
  5. The measurement name has the form IRATHO.FailOutCS.Cause
    where Cause identifies the failure cause.
  6. GsmRelation.
  7. Valid for circuit switched traffic
  8. UMTS

4.12.3 Incoming circuit switched inter-RAT handovers

4.12.3.0 Introduction

The three measurement types defined in the subclause 4.12.3.n for incoming circuit switched inter-RAT handovers are subject to the "2 out of 3 approach".

4.12.3.1 Attempted incoming circuit switched inter-RAT handovers

  1. This measurement provides the number of attempted incoming circuit switched inter-RAT handovers for each cell.
  2. CC
  3. Receipt of a RANAP RELOCATION REQUEST message sent from the CN to the target RNC, indicating the attempt of an inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.AttIncCS.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcrValid for circuit switched traffic
  7. UMTS

4.12.3.2 Successful incoming circuit switched inter-RAT handovers

  1. This measurement provides the number of successful incoming circuit switched interRAT handovers for each cell.
  2. CC
  3. Receipt of a RRC HANDOVER TO UTRAN COMPLETE message sent from the UE to the target RNC, indicating a successful interRAT handover (see TS 25.331 [4]).
  4. A single integer value
  5. IRATHO.SuccIncCS.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcrValid for circuit switched traffic
  7. UMTS

4.12.3.3 Failed incoming circuit switched inter-RAT handovers

  1. This measurement provides the number of failed incoming circuit switched interRAT handovers per cell per cause.
  2. CC
  3. Transmission of a RANAP message RELOCATION FAILURE from the target RNC to the CN, indicating a failed inter-RAT handovers. Failure causes are defined within TS 25.413 [5].
    The sum of all supported per cause measurements shall equal the total number of failed events. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first.
  4. Each measurement is an integer value. The number of measurements is equal to the number of causes supported plus a possible sum value identified by the .sum suffix.
  5. The measurement name has the form IRATHO.FailIncCS.Cause
    where Cause identifies the failure cause.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcrValid for circuit switched traffic
  7. UMTS

4.13 Packet switched inter-RAT handover

4.13.1 Outgoing packet switched inter-RAT handovers, UTRAN controlled

4.13.1.0 Introduction

The three measurement types defined in the subclause 4.13.1.n for outgoing packet switched inter-RAT handovers, UTRAN controlled are subject to the "2 out of 3 approach".

4.13.1.1 Attempted outgoing packet switched inter-RAT handovers, UTRAN controlled

  1. This measurement provides the number of attempted outgoing, UTRAN controlled, Packet Switched interRAT handovers per cell.
  2. CC
  3. Transmission of a RRC-message, CELL CHANGE ORDER FROM UTRAN, from source RNC to the UE, indicating an attempted outgoing Packet Switched inter-RAT handover (see TS 25.331 [4]).
  4. A single integer value
  5. IRATHO.AttOutPSUTRAN.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcr
  7. Valid for packet switched traffic.
  8. UMTS

4.13.1.2 Successful outgoing packet switched inter-RAT handovers, UTRAN controlled

  1. This measurement provides the number of successful outgoing, UTRAN controlled, Packet Switched interRAT handovers per cell.
  2. CC
  3. Receipt of a RANAP message, IU RELEASE COMMAND, sent from the PS CN to the source RNC, indicating a successful outgoing Packet Switched inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.SuccOutPSUTRAN.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcr
  7. Valid for packet switched traffic.
  8. UMTS

4.13.1.3 Failed outgoing packet switched inter-RAT handovers UTRAN controlled

  1. This measurement provides the number of failed outgoing, UTRAN controlled, Packet Switched interRAT handovers per cause, where the UE resumes the connection to UTRAN using the same resources used before receiving the cell change order. This is measured per cell.
  2. CC
  3. Receipt of an RRC message, CELL CHANGE ORDER FROM UTRAN FAILURE, sent from the UE to the source RNC, indicating a failed inter-RAT handover. Failure causes are defined within TS 25.331 [4].
    The sum of all supported per cause measurements shall equal the total number of failed events. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first.
  4. Each measurement is an integer value. The number of measurements is equal to the number of causes supported plus a possible sum value identified by the .sum suffix.
  5. The measurement name has the form IRATHO.FailOutPSUTRAN.Cause
    where Cause identifies the failure cause.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcr
  7. Valid for packet switched traffic.
  8. UMTS

4.13.2 Outgoing packet switched inter-RAT handovers, UE controlled

4.13.2.1 Successful outgoing packet switched inter-RAT handovers, UE controlled

  1. This measurement provides the number of successful outgoing, UE controlled, Packet Switched inter-RAT handovers per cell.
  2. CC
  3. Receipt of an RANAP message, SRNS CONTEXT REQUEST, sent from the PS CN to the serving RNC, indicating a successful outgoing UE controlled Packet Switched inter-RAT handover (see TS 25.413 [5]).
  4. A single integer value
  5. IRATHO.SuccOutPSUE.
  6. UtranCellFDD
    UtranCellTDDLcr
    UtranCellTDDHcr
  7. Valid for packet switched traffic.
  8. UMTS