Item Information
Page 1 of 53
Item Information In order to realize convenient and effective performance measurement, the Performance Management System groups into a "measurement unit" for the "measurement items" with similar measurement purposes; and groups into a "measurement function set" for the "measurement units" with similar measurement purposes. The measurement function set of cBSS Performance Management System includes: z
BSC Overall Performance Measurement
z
Carrier Performance Measurement
z
Carrier Power Control Measurement
z
Carrier Channel Performance Measurement
z
A2 Interface Performance Measurement
z
MTP Signaling Link Measurement
z
PCF Call Processing Measurement
z
PCF Data Processing Measurement
z
BSC Data Processing Measurement
z
CSPU CPU Occupancy Measurement
In this part, detailed description including the meaning and measurement points will be given to the measurement item of Performance Management System according to the above classification. BSC Overall Performance Measurement BSC Overall Performance Measurement includes the following measurement units: z
Paging Success Ratio
z
Location Updates
z
Short Message Traffic
z
CS Call Setup Success Ratio
z
PS Call Setup Success Ratio
z
CS Call Drop Ratio
z
PS Call Drop Ratio
Item Information
Page 2 of 53
z
TCH Congestion Ratio
z
Traffic Amount
z
Intra-BS Soft HO Success Ratio
z
Intra-SP Hard HO (within same BS) Success Ratio
z
Inter-SP Hard HO (within same BS) Success Ratio
z
Inter-BS Outgoing Hard HO Success Ratio
z
Inter-BS Incoming Hard HO Success Ratio
z
Inter-BS Soft HO Success Ratio
z
Hard HO Decision Algorithm
Note Some measurement units included in BSC Overall Performance Measurement are the same as those in Carrier Performance Measurement. Paging Success Ratio Measurement item
Item meaning & measurement point
Meaning: Number of Paging Requests received. Paging Requests Measurement point: Paging Request sent /re-sent by the MSC is received. Meaning: Number of Paging Response messages received. Paging Responses Measurement point: BS sends Paging Response to MSC. Meaning: Paging Success Ratio = Paging Responses/Paging Paging Success Requests*100% Ratio Measurement point: Computed item. Location Updates Measurement item Location Update Requests
Item meaning & measurement point Meaning: Number of Location Update Request messages sent to MSC. Measurement point: BS sends Location Updating Request message to MSC.
Meaning: Number of Location Updates within unit time. (Unit: Location Updates Times/Minute)
Item Information
Page 3 of 53
within Unit Time Location Updates within Unit Time = Location Update Requests/Granularity Period Measurement point: Computed item. Short Message Traffic Measurement item MT/PP Short Messages
Broadcast Short Messages MO/PP Short Messages TCH Downlink Messages TCH Uplink Messages
Meaning & measurement point Meaning: Number of ADDS page messages received by BS from MSC, and mobile identity carried by this message is not "broadcast address". Measurement point: BS receives ADDS page message issued by MSC, and mobile identity carried by this message is not "broadcast address". Meaning: Number of ADDS page messages received by BS from MSC, and mobile identity carried by this message is "broadcast address". Measurement point: BS receives ADDS page message issued by MSC, and mobile identity carried by this message is "broadcast address". Meaning: Number of ADDS Transfer messages sent by BS to MSC. Measurement point: BS sends ADDS Transfer to MSC. Meaning: Number of ADDS Deliver messages received by BS. Measurement point: BS receives ADDS Deliver message. Meaning: Number of ADDS Deliver messages sent by BS to MSC. Measurement point: BS sends ADDS Deliver to MSC.
[BSC] CS Call Setup Success Ratio Measurement item
[BSC] CS Call Attempts
[BSC] CS Assignment Attempts [BSC] CS TCH Ready
Meaning & measurement point Meaning: Number of Origination or Paging Response messages received in speech service calls. Measurement points: (1) MS-originated: BS receives Origination Message. (2) MS-terminated: BS receives Page Response Message. Meaning: Number of Assignment Request messages received by BS in speech service calls. Measurement point: BS receives Assignment Request. Meaning: Number of Channel Assignment Messages or Extended Channel Assignment Messages sent by BS to MS in speech service calls. Measurement point: BS sends Channel Assignment Message or Extended Channel Assignment Message to MS.
Meaning: Number of TCH Preamble messages received by BS in speech [BSC] Successful service calls. Acquisitions of
Item Information
Reverse TCH Preambles (CS)
Page 4 of 53
Measurement point: BS receives TCH Preamble message.
Meaning: Number of Assignment Completed messages sent by BS to [BSC] Successful MSC in speech service calls. CS Call Setups Measurement point: BS sends Assignment Completed message to MSC. Meaning: Number of speech service call setup failures due to Assignment Request message not received. [BSC] CS Call Setup Failures [BSC] CS Call Setup Failures (MSC Reject) = [BSC] CS Call Attempts (MSC Reject) [BSC] CS Assignment Attempts Measurement point: Computed item. Meaning: Number of speech service call setup failures due to call resource allocation failure. [BSC] CS Call Resource [BSC] CS Call Resource Allocation Failures = [BSC] CS Assignment Allocation Attempts - [BSC] CS TCH Ready Failures Measurement point: Computed item. Meaning: Number of speech service call setup failures due to no TCH Preamble message received. [BSC] Reverse TCH Preamble [BSC] Reverse TCH Preamble Acquisition Failures (CS) = [BSC] CS Acquisition TCH Ready - [BSC] Successful Acquisitions of Reverse TCH Preambles Failures (CS) (CS) Measurement point: Computed item. Meaning: Number of speech service call setup failures which occur after TCH Preamble message is received. [BSC] CS TCH [BSC] CS TCH Signaling Exchange Failures = [BSC] Successful Signaling Exchange Failures Acquisitions of Reverse TCH Preambles (CS) - [BSC] Successful CS Call Setups Measurement point: Computed item. Meaning: [BSC] CS Call Setup Success Ratio = ([BSC] Successful CS [BSC] CS Call Call Setups/[BSC] CS Call Attempts× 100% Setup Success Ratio Measurement point: Computed item. [BSC] PS Call Setup Success Ratio Measurement item
[BSC] PS Call Attempts
Meaning & measurement point Meaning: Number of Origination or Paging Response messages (excluding the Origination messages with DRS=0) received in packet service calls. Measurement points: (1) MS-originated: BS receives Origination Message.
Item Information
Page 5 of 53
(2) MS-terminated: BS receives Page Response Message. [BSC] PS Assignment Attempts [BSC] PS TCH Ready
Meaning: Number of Assignment Request messages received by BS from the MSC in packet service calls. Measurement point: BS receives Assignment Request. Meaning: Number of Channel Assignment Messages or Extended Channel Assignment Messages sent by BS to MS in packet service calls. Measurement point: BS sends Channel Assignment Message or Extended Channel Assignment Message to MS.
[BSC] Successful Meaning: Number of TCH Preamble messages received by BS in packet Acquisitions of service calls. Reverse TCH Measurement point: BS receives TCH Preamble message. Preambles (PS) Meaning: Number of Assignment Completed messages sent by BS to [BSC] Successful MSC in packet service calls. PS Call Setups Measurement point: BS sends Assignment Completed message to MSC. Meaning: Number of call setup failures due to Assignment Request message not received. [BSC] PS Call Setup Failures [BSC] PS Call Setup Failures (MSC Reject)=[BSC] PS Call Attempts(MSC Reject) [BSC] PS Assignment Attempts
[BSC] PS Call Resource Allocation Failures
[BSC] Reverse TCH Preamble Acquisition Failures (PS)
Measurement point: Computed item. Meaning: Number of packet service call setup failures due to call resource allocation failure. [BSC] PS Call Resource Allocation Failures = [BSC] PS Assignment Attempts - [BSC] PS TCH Ready Measurement point: Computed item. Meaning: Number of packet service call setup failures due to reverse TCH preamble acquisition failure. [BSC] Reverse TCH Preamble Acquisition Failures (PS)= [BSC] PS TCH Ready - Successful Acquisitions of Reverse TCH Preambles (PS) Measurement point: Computed item. Meaning: Number of packet service call setup failures which occur after TCH Preamble message is received.
[BSC] PS TCH [BSC] PS TCH Signaling Exchange Failures = [BSC] Successful Signaling Exchange Failures Acquisitions of Reverse TCH Preambles (PS) - [BSC] Successful PS Call Setups Measurement point: Computed item. Meaning: [BSC] PS Call Setup Success Ratio = ([BSC] Successful PS [BSC] PS Call Call Setups/[BSC] PS Call Attempts× 100% Setup Success Ratio Measurement point: Computed item.
Item Information
Page 6 of 53
[BSC] CS Call Drop Ratio Measurement item
Meaning & measurement point
Meaning: Number of speech service call drops caused by too many [BSC] CS Call Drops (Too many Erasure frames. Erasure frames) Measurement point: None. Meaning: Number of speech service call drops caused by too high [BSC] CS Call MARKOV frame error rate. Drops (Markov calls) Measurement point: None. Meaning: Number of speech service call drops due to no reverse frame [BSC] CS Call Drops (No reverse received. frame received) Measurement point: None. Meaning: Number of speech service call drops due to Abis interface [BSC] CS Call abnormal (including BTS resource fault, Abis link resource fault, FMR Drops (Abis resource fault and RPS resource fault). interface abnormal) Measurement point: None. Meaning: Number of speech service call drops due to A interface [BSC] CS Call abnormal (including abnormal release by MSC, call release due to A2 Drops (A2 interface circuit abnormal, CIE resource fault, TIE resource fault and interface LIM resource fault). abnormal) Measurement point: None. Meaning: Number of speech service call drops due to other causes [BSC] CS Call (including system internal error and OAM interruption). Drops (Other causes) Measurement point: None. Meaning: [BSC] CS Call Drop Ratio = [BSC] CS Call Drop Ratio
(([BSC] CS Call Drops (Too many Erasure frames) + [BSC] CS Call Drops (Markov calls)+ [BSC] CS Call Drops (No reverse frame received) + [BSC] CS Call Drops (Abis interface abnormal) + [BSC] CS Call Drops (A2 interface abnormal) + [BSC] CS Call Drops (Other causes)) / [BSC] Successful CS Call Setups)× 100% Measurement point: Computed item.
[BSC] PS Call Drop Ratio Measurement item
Meaning & measurement point
Meaning: Number of packet service call drops due to too many Erasure [BSC] PS Call Drops (Too many frames. Erasure frames) Measurement point: None. [BSC] PS Call
Meaning: Number of packet service call drops due to no reverse frame
Item Information
Page 7 of 53
Drops (No reverse received. frame received) Measurement point: None. Meaning: Number of packet service call drops due to Abis interface [BSC] PS Call abnormal (including BTS resource fault, Abis link resource fault, FMR Drops (Abis resource fault and RPS resource fault). interface abnormal) Measurement point: None. Meaning: Number of packet service call drops due to A interface [BSC] PS Call abnormal (including abnormal release by MSC, call release due to A2 Drops (A2 interface circuit abnormal, CIE resource fault, TIE resource fault and interface LIM resource fault). abnormal) Measurement point: None. Meaning: Number of packet service call drops due to link fault from BS [BSC] PS Call to PCF (including A8 interface fault, PPU resource fault and abnormal Drops (PCF release by PDSN). failure) Measurement point: None. Meaning: Number of packet service call drops due to other causes [BSC] PS Call (including system internal error and OAM interruption). Drops (Other causes) Measurement point: None. Meaning:
[BSC] PS Call Drop Ratio
[BSC] PS Call Drop Ratio= (([BSC] PS Call Drops (Too many Erasure frames) + [BSC] PS Call Drops (No reverse frame received) + [BSC] PS Call Drops (Abis interface abnormal) + [BSC] PS Call Drops (A2 interface abnormal) +[BSC] PS Call Drops (PCF failure)+ [BSC] PS Call Drops (Other causes)) / [BSC] Successful PS Call Setups)× 100% Measurement point: Computed item.
[BSC] TCH Congestion Ratio Measurement item
Meaning & measurement point
Meaning: Number of TCH Assignment Requests for calls, hard handoffs and soft handoffs. Measurement point: The radio resource management module receives TCH Assignment Request. Meaning: Number of successful TCH assignments for calls, hard [BSC] Successful handoffs and soft handoffs. TCH Assignments Measurement point: The radio resource management module sends TCH setup message. [BSC] TCH Meaning: Number of TCH assignment failures due to WALSH shortage. Assignment Failures (WALSH Measurement point: The radio resource management module sends TCH rejection message. shortage) [BSC] TCH Assignment Requests
[BSC] TCH
Meaning: Number of TCH assignment failures due to low forward
Item Information
Page 8 of 53
Assignment Failures (Low forward power)
power. Measurement point: The radio resource management module sends TCH rejection message.
[BSC] TCH Assignment Failures (Low reverse power)
Meaning: Number of TCH assignment failures due to low reverse power.
[BSC] TCH Assignment Failures (Channel shortage)
Meaning: Number of TCH assignment failures due to channel element (CE) shortage. Measurement point: The radio resource management module sends TCH rejection message.
[BSC] TCH Assignment Failures (Other causes)
Meaning: Number of TCH assignment failures due to other causes.
Measurement point: The radio resource management module sends TCH rejection message.
Measurement point: The radio resource management module sends TCH rejection message.
Meaning: [BSC] TCH Congestion Ratio = (1 - [BSC] Successful TCH [BSC] TCH Assignments / [BSC] TCH Assignment Requests)× 100% Congestion Ratio Measurement point: Computed item. [BSC] Traffic Amount Measurement item
Item meaning & measurement point
Meaning: Duration of CE seizure by speech service fundamental channel [BSC] CE Seizure (FCH). (Unit: Second) Duration - Speech Measurement point: The accumulated duration of CE seizure by speech FCH service FCH (including soft handoff). [BSC] CE Seizure Meaning: Duration of CE seizure by packet service FCH. (Unit: Second) Duration - Packet Measurement point: The accumulated duration of CE seizure by packet FCH service FCH (including soft handoff). Meaning: Duration of CE seizure by packet service supplementary [BSC] CE Seizure channel (SCH). (Unit: Second) Duration - SCH Measurement point: The accumulated duration of CE seizure by forward packet service SCH. Meaning: Duration of WALSH seizure by FCH. (Unit: Second) [BSC] WALSH Seizure Duration Measurement point: The accumulated duration of WALSH seizure by FCH (including soft handoff and hard handoff). Meaning: Duration of TCH Seizure (excluding HO). (Unit: Second) [BSC] TCH Seizure Duration Measurement point: The accumulated duration of FCH seizure by voice (excluding HO) service and data service (excluding handoff). Meaning: Densityof traffic borne by CE seized by speech service FCH (including soft handoff). (Unit: Erl) [BSC] CE Traffic Density - Speech [BSC] CE Traffic Density - Speech FCH = [BSC] CE Seizure Duration -
Item Information
FCH
Page 9 of 53
Speech FCH /(60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by CE seized by packet service FCH (including soft handoff). (Unit: Erl)
[BSC] CE Traffic Density - Packet [BSC] CE Traffic Density - Packet FCH = [BSC] CE Seizure Duration FCH Packet FCH /(60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by CE seized by packet service SCH. (Unit: Erl) [BSC] CE Traffic Density - Packet [BSC] CE Traffic Density - SCH = [BSC] CE Seizure Duration - SCH / SCH (60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by WALSH seized by all service FCH (including soft handoff and hard handoff). (Unit: Erl) [BSC] WALSH Traffic Density
[BSC] TCH Traffic Density (excluding HO)
[BSC] Soft HO Ratio
[BSC] WALSH Traffic Density= [BSC] WALSH Seizure Duration/ (60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by TCH excluding handoff. (Unit: Erl) [BSC] TCH Traffic Density (excluding HO)=[BSC] TCH Seizure Duration (excluding HO)/((Granularity Period)*60) Measurement point: Computed item. Meaning: FCH soft handoff ratio (excluding softer handoffs). [BSC] Soft HO Ratio = (( [BSC] CE Traffic Density - Speech FCH + [BSC] CE Traffic Density - Packet FCH - [BSC] TCH Traffic Density (excluding HO) / [BSC] TCH Traffic Density (excluding HO))× 100% Measurement point: Computed item.
[BSC] Intra-BS Soft HO Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of Intra-BS Soft HO Requests. [BSC] Intra-BS Soft HO Requests Measurement point: The radio resource management module sends the soft handoff decision. Measured by number of branches added or deleted. Meaning: Number of successful intra-BS soft handoffs. [BSC] Successful Intra-BS Soft HOs Measurement point: BS receives Handoff Complete message. Measured by number of successful handoff branches. Meaning: Number of intra-BS soft handoff failures caused by the target [BSC] Intra-BS cell radio resources request failure. Soft HO Failures
Item Information
Page 10 of 53
(Radio resources unavailable) [BSC] Intra-BS Soft HO Failures (Requested Abis resources unavailable)
Measurement point: Radio resource allocation fails in intra-BS soft handoff procedure.
[BSC] Intra-BS Soft HO Failures (Radio interface abnormal)
Meaning: The timer expires when waiting for Handoff Complete Message. Measurement point: The timer expires when BS is waiting for Handoff Complete Message. Meaning: Number of inter-BS soft handoff failures caused by MS rejection. Measurement point: BS receives Reject Order after it sends Handoff Direction Message in intra-BS soft handoff procedure. Meaning: Number of intra-BS soft handoff failures caused by other reasons. Measurement point: Inter-BS soft handoff fails due to other causes. Meaning: [BSC] Intra-BS Soft HO Success Ratio = ([BSC] Successful Intra-BS Soft HOs / [BSC] Intra-BS Soft HO Requests ×100% Measurement point: Computed item.
[BSC] Intra-BS Soft HO Failures (MS rejected) [BSC] Intra-BS Soft HO Failures (Other causes) [BSC] Intra-BS Soft HO Success Ratio
Meaning: Number of intra-BS soft handoff failures caused by the Abis resources request failure. Measurement point: Abis resource allocation fails in intra-BS soft handoff procedure.
[BSC] Intra-SP Hard HO (within same BS) Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of intra-SP hard handoff (within the same BS) requests . Measurement point: The source side sends intra-BS Hard Handoff Request message. [BSC] Successful Meaning: Number of successful intra-SP hard handoffs within the same BS. Intra-SP Hard HOs within same Measurement point: The source side receives the Clear command, the BS cause value carried by which is "Handoff successful". Meaning: Number of intra-SP hard handoffs within the same BS which [BSC] Intra-SP Hard HO (within fail due to radio resources unavailable at the target side. same BS) Failures Measurement point: The source BS receives the Handoff Failure (Radio resources message, the cause value carried by which is "Radio resources unavailable) unavailable". [BSC] Intra-SP Hard HO (within same BS) Requests
[BSC] Intra-SP Hard HO (within same BS) Failures (Requested terrestrial resources
Meaning: Number of intra-SP hard handoffs within the same BS which fail due to terrestrial resources unavailable at the target side. Measurement point: The source side receives the Handoff Failure message, the cause value carried by which is "Requested terrestrial
Item Information
Page 11 of 53
unavailable)
resources unavailable". Meaning: Number of intra-SP hard handoffs within the same BS which [BSC] Intra-SP Hard HO (within fail because MS fails to handoff to the target side, and remains at the same BS) Failures source side. (Returned to Measurement point: BS receives Candidate Frequency Search Report original channel) Message from MS after it sends Handoff Direction Message. Meaning: Number of intra-SP hard handoffs within the same BS which [BSC] Intra-SP Hard HO (within fail due to Reject Order received. same BS) Failures Measurement point: BS receives Reject Order after it sends Handoff (MS rejected) Direction Message. Meaning: Number of intra-SP hard handoffs within the same BS which [BSC] Intra-SP Hard HO (within fail due to other causes. same BS) Failures Measurement point: The timer expires when the target side waiting for (Other causes) Handoff Complete Message from MS. Meaning: Intra-SP hard handoff (within the same BS) success ratio. [BSC] Intra-SP Hard HO (within [BSC] Intra-SP Hard HO (within same BS) Success Ratio= ([BSC] same BS) Success Successful Intra-SP Hard HOs within same BS/ [BSC]Intra-SP Hard HO (within same BS) Requests) × 100% Ratio Measurement point: Computed item. [BSC] Inter-SP Hard HO (within same BS) Success Ratio Measurement item [BSC] Inter-SP Hard HO (within same BS) Requests [BSC] Successful Inter-SP Hard HOs within same BS [BSC] Inter-SP Hard HO (within same BS) Failures (Radio resources unavailable) [BSC] Inter-SP Hard HO (within same BS) Failures (Requested terrestrial resources unavailable) [BSC] Inter-SP
Meaning & measurement point Meaning: Number of inter-SP hard HO (within the same BS) requests. Measurement point: BS sends Handoff Required message to the MSC. Meaning: Number of successful inter-SP hard HOs within the same BS. Measurement point: The source BS receives Clear command, the cause value carried by which is "Handoff successful". Meaning: Number of inter-SP hard handoffs within the same BS which fail due to radio resources unavailable. Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". Meaning: Number of inter-SP hard handoffs within the same BS which fail due to terrestrial resources unavailable. Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable".
Item Information
Page 12 of 53
Hard HO (within Meaning: Number of inter-SP hard handoffs within the same BS which same BS) Failures fail because MS returns to the original channel. (Returned to Measurement point: BS receives Candidate Frequency Search Report original channel) Message from MS after it sends Handoff Direction Message. Meaning: Number of inter-SP hard handoffs within the same BS which fail because MS is rejected. Measurement point: BS receives Reject Order after it sends Handoff Direction Message. Meaning: Number of inter-SP hard handoffs within the same BS which [BSC] Inter-SP Hard HO (within fail due to other causes. same BS) Failures Measurement point: The timer expires when the target side is waiting for (Other causes) Handoff Complete Message from MS. Meaning: Inter-SP Hard HO (within same BS) Success Ratio. [BSC] Inter-SP Hard HO (within [BSC] Inter-SP Hard HO (within same BS) Success Ratio= ([BSC] same BS) Success Successful Inter-SP Hard HOs within same BS/ [BSC]Inter-SP Hard HO (within same BS) Requests) × 100% Ratio Measurement point: Computed item. [BSC] Inter-SP Hard HO (within same BS) Failures (MS rejected)
[BSC] Inter-BS Outgoing Hard HO Success Ratio Measurement item [BSC] Inter-BS Outgoing Hard HO Requests
Meaning & measurement point Meaning: Number of Inter-BS Outgoing Hard HO Requests. Measurement point: BS sends Handoff Required message to the MSC.
[BSC] Successful Meaning: Number of successful inter-BS outgoing hard handoffs. Inter-BS Outgoing Measurement point: The source BS receives Clear command, the cause Hard HOs value carried by which is "Handoff successful". [BSC] Inter-BS Meaning: Number of inter-BS outgoing hard handoff failures caused by Outgoing Hard radio resources unavailable . HO Failures (Radio resources Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". unavailable) [BSC] Inter-BS Meaning: Number of inter-BS outgoing hard handoff failures caused by Outgoing Hard requested terrestrial resources unavailable. HO Failures (Requested terrestrial Measurement point: BS receives the Handoff Reject message, the cause resources value carried by which is "Radio resources unavailable". unavailable) [BSC] Inter-BS Outgoing Hard HO Failures (Returned to
Meaning: Number of inter-BS outgoing hard handoff failures caused by the returning of MS to original channel. Measurement point: BS receives Candidate Frequency Search Report
Item Information
Page 13 of 53
original channel)
Message from MS after it sends Handoff Direction Message. Meaning: Number of inter-BS outgoing hard handoff failures caused by [BSC] Inter-BS MS rejection. Outgoing Hard HO Failures (MS Measurement point: BS receives Reject Order after it sends Handoff rejected) Direction Message. Meaning: Number of inter-BS outgoing hard handoff failures caused by [BSC] Inter-BS other reasons. Outgoing Hard HO Failures Measurement point: The timer expires when the target BS is waiting for (Other causes) Handoff Complete Message from MS. Meaning: Inter-BS outgoing hard HO success ratio. [BSC] Inter-BS [BSC] Inter-BS Outgoing Hard HO Success Ratio = ([BSC] Successful Outgoing Hard Inter-BS Outgoing Hard HOs / [BSC] Inter-BS Outgoing Hard HO HO Success Ratio Requests ×100% Measurement point: Computed item. [BSC] Inter-BS Incoming Hard HO Success Ratio Measurement item [BSC] Inter-BS Incoming Hard HO Requests [BSC] Successful Inter-BS Incoming Hard HOs [BSC] Inter-BS Incoming Hard HO Failures (Resource allocation failed)
Meaning & measurement point Meaning: Number of Inter-BS Incoming Hard HO Requests. Measurement point: Handoff Reject message is received from the MSC. Meaning: Number of successful inter-BS incoming hard handoffs. Measurement point: Handoff Complete message is sent to the MSC. Meaning: Number of inter-BS incoming hard handoff failures caused by resource allocation failure. Measurement point: The target BS receives Handoff request message but fails to get the requested call resources, and sends Handoff Failure to the MSC. Meaning: Number of inter-BS incoming hard handoff failures caused by execution failure. Measurement points:
[BSC] Inter-BS (1) Speech service call: The timer expires when BS is waiting for Incoming Hard Handoff Completion message from MS times out, and then BS sends HO Failures (Execution failed) Handoff Failure to the MSC.
[BSC] Inter-BS Incoming Hard
(2) Packet service call: The timer expires when BS is waiting for Handoff Completion message or A9-AL Connected Ack, and then BS sends Handoff Failure to the MSC. Meaning: Number of inter-BS incoming hard handoff failures because the execution is interrupted by the MSC.
Item Information
HO Failures (Interrupted by MSC) [BSC] Inter-BS Incoming Hard HO Failures (Other causes)
Page 14 of 53
Measurement point: The target BS receives Clear Command from the MSC after it receives Handoff Request and responds with Handoff Request Ack and before it sends Handoff Complete or Handoff Failure to the MSC. Meaning: Number of intra-BS incoming hard handoff failures due to other causes. Measurement point: The target BS receives the Clear message from the bottom layer. Meaning: inter-BS incoming hard HO success ratio.
[BSC] Inter-BS [BSC] Inter-BS Incoming Hard HO Success Ratio = ([BSC] Successful Incoming Hard Inter-BS Incoming Hard HOs / [BSC] Inter-BS Incoming Hard HO HO Success Ratio Requests ×100% Measurement point: Computed item. [BSC] Inter-BS Soft HO Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of Inter-BS Soft HO Requests. [BSC] Inter-BS Soft HO Requests Measurement point: BS sends A7-Handoff Request message. [BSC] Successful Meaning: Number of successful inter-BS soft handoffs. Inter-BS Soft HOs Measurement point: Handoff Complete message received by BS. Meaning: Number of inter-BS soft handoff failures caused by [BSC] Inter-BS Soft HO Failures unavailable radio resources at the target side. (Radio resources Measurement point: The source BS receives A7-Handoff Request Ack, unavailable) the cause value carried by which is "No radio resource available". [BSC] Inter-BS Meaning: Number of inter-BS soft handoff failures caused by Soft HO Failures unavailable requested Abis resources. (Requested Abis resources Measurement point: Temporarily not measured. unavailable) Meaning: Number of inter-BS soft handoff failures caused by radio [BSC] Inter-BS Soft HO Failures interface fault. (Radio interface Measurement point: The timer expires when BS is waiting for Handoff fault) Complete Message. Meaning: Number of inter-BS soft handoff failures caused by MS [BSC] Inter-BS rejection. Soft HO Failures Measurement point: BS receives Reject Order after it sends Handoff (MS rejected) Direction Message. Meaning: Number of inter-BS soft handoff failures caused by A3 link [BSC] Inter-BS Soft HO Failures setup failure. (A3 link setup Measurement point: The timer expires when BS is waiting for A3failed) Connect Ack, or A3-Connect Ack carries failure indication.
Item Information
[BSC] Inter-BS Soft HO Failures (Other causes) [BSC] Inter-BS Soft HO Success Ratio
Page 15 of 53
Meaning: Number of inter-BS soft handoff failures caused by other reasons. Measurement point: Inter-BS soft handoff fails due to other causes. Meaning: Inter-BS soft handoff success ratio. [BSC] Inter-BS Soft HO Success Ratio = ([BSC] Successful Inter-BS Soft HOs / [BSC] Inter-BS Soft HO Requests ×100% Measurement point: Computed item.
[BSC] Hard HO Decision Algorithm Measurement item
Meaning & measurement point
[BSC] Hard HO Meaning: Number of pseudo pilot hard handoffs triggered by BS. Requests (Pseudo Measurement point: BS receives PSMM and triggers pseudo pilot hard Pilot) handoff. [BSC] Hard HO Meaning: Number of mobile assisted hard handoffs triggered by BS. Requests (Mobile Measurement point: BS receives PSMM and CFSRPM, and triggers assisted) mobile assisted hard handoff. [BSC] Hard HO Meaning: Number of intra-frequency hard handoffs triggered by BS. Requests (Same- Measurement point: BS receives PSMM and triggers intra-frequency frequency) hard handoff. [BSC] Hard HO Meaning: Number of handdown hard handoffs triggered by BS. Requests Measurement point: BS receives PSMM and triggers handdown hard (Handdown) handoff. [BSC] Hard HO Meaning: Number of direct hard handoffs triggered by BS. Requests (Direct) Measurement point: BS receives PSMM and triggers direct hard handoff. Carrier Performance Measurement Carrier Performance Measurement includes the following measurement units: z
CS Call Setup Success Ratio
z
PS Call Setup Success Ratio
z
CS Call Drop Ratio
z
PS Call Drop Ratio
z
TCH Congestion Ratio
z
Traffic Amount
z
Intra-BS Soft HO Success Ratio
Item Information
Page 16 of 53
z
Intra-SP Hard HO (within same BS) Success Ratio
z
Inter-SP Hard HO (within same BS) Success Ratio
z
Inter-BS Outgoing Hard HO Success Ratio
z
Inter-BS Incoming Hard HO Success Ratio
z
Inter-BS Soft HO Success Ratio
[Carrier] CS Call Setup Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of Origination or Paging Response messages received in speech service calls. [Carrier] CS Call Measurement points: Attempts (1) MS-originated: BS receives Origination Message. (2) MS-terminated: BS receives Page Response Message. Meaning: Number of Assignment Request messages received by BS in [Carrier] CS speech service calls. Assignment Attempts Measurement point: BS receives Assignment Request. Meaning: Number of Channel Assignment Messages or Extended [Carrier] CS TCH Channel Assignment Messages sent by BS to MS in speech service calls. Ready Measurement point: BS sends Channel Assignment Message or Extended Channel Assignment Message to MS. [Carrier] Meaning: Number of TCH Preamble messages received by BS in speech Successful service calls. Acquisitions of Reverse TCH Measurement point: BS receives TCH Preamble message. Preambles (CS) Meaning: Number of Assignment Completed messages sent by BS to [Carrier] MSC in speech service calls. Successful CS Call Setups Measurement point: BS sends Assignment Completed message to MSC. Meaning: Number of speech service call setup failures due to Assignment Request message not received. [Carrier] CS Call Setup Failures [Carrier] CS Call Setup Failures (MSC Reject) = [Carrier] CS Call (MSC Reject) Attempts - [Carrier] CS Assignment Attempts Measurement point: Computed item. Meaning: Number of speech service call setup failures due to call [Carrier] CS Call resource allocation failure. Resource Allocation [Carrier] CS Call Resource Allocation Failures = [Carrier] CS
Item Information
Failures
Page 17 of 53
Assignment Attempts - [Carrier] CS TCH Ready Measurement point: Computed item. Meaning: Number of speech service call setup failures due to no TCH Preamble message received.
[Carrier] Reverse TCH Preamble [Carrier] Reverse TCH Preamble Acquisition Failures (CS)= [Carrier] Acquisition CS TCH Ready - [Carrier] Successful Acquisitions of Reverse TCH Failures (CS) Preambles (CS) Measurement point: Computed item. Meaning: Number of speech service call setup failures which occur after TCH Preamble message is received. [Carrier] CS TCH [Carrier] CS TCH Signaling Exchange Failures = [Carrier] Successful Signaling Exchange Failures Acquisitions of Reverse TCH Preambles (CS) - [Carrier] Successful CS Call Setups Measurement point: Computed item. [Carrier] CS Call Meaning: [Carrier] CS Call Setup Success Ratio = ([Carrier] Successful CS Call Setups/[Carrier] CS Call Attempts× 100% Setup Success Ratio Measurement point: Computed item. [Carrier] PS Call Setup Success Ratio Measurement item
[Carrier] PS Call Attempts
Meaning & measurement point Meaning: Number of Origination or Paging Response messages (excluding the Origination messages with DRS=0) received in packet service calls. Measurement points: (1) MS-originated: BS receives Origination Message.
(2) MS-terminated: BS receives Page Response Message. Meaning: Number of Assignment Request messages received by BS [Carrier] PS from the MSC in packet service calls. Assignment Attempts Measurement point: BS receives Assignment Request. Meaning: Number of Channel Assignment Messages or Extended [Carrier] PS TCH Channel Assignment Messages sent by BS to MS in packet service calls. Ready Measurement point: BS sends Channel Assignment Message or Extended Channel Assignment Message to MS. [Carrier] Meaning: Number of TCH Preamble messages received by BS in packet Successful service calls. Acquisitions of Reverse TCH Measurement point: BS receives TCH Preamble message. Preambles (PS) [Carrier]
Meaning: Number of Assignment Completed messages sent by BS to
Item Information
Successful PS Call Setups
[Carrier] PS Call Setup Failures (MSC Reject)
[Carrier] PS Call Resource Allocation Failures
Page 18 of 53
MSC in packet service calls. Measurement point: BS sends Assignment Completed message to MSC. Meaning: Number of call setup failures due to Assignment Request message not received. [Carrier] PS Call Setup Failures (MSC Reject)=[Carrier] PS Call Attempts-[Carrier] PS Assignment Attempts Measurement point: Computed item. Meaning: Number of packet service call setup failures due to call resource allocation failure.
[Carrier] PS Call Resource Allocation Failures = [Carrier] PS Assignment Attempts - [Carrier] PS TCH Ready Measurement point: Computed item. Meaning: Number of packet service call setup failures due to reverse [Carrier] Reverse TCH preamble acquisition failure. TCH Preamble [Carrier] Reverse TCH Preamble Acquisition Failures (PS)= [Carrier] PS Acquisition TCH Ready - Successful Acquisitions of Reverse TCH Preambles (PS) Failures (PS) Measurement point: Computed item. Meaning: Number of packet service call setup failures which occur after TCH Preamble message is received. [Carrier] PS TCH [Carrier] PS TCH Signaling Exchange Failures = [Carrier] Successful Signaling Exchange Failures Acquisitions of Reverse TCH Preambles (PS) - [Carrier] Successful PS Call Setups Measurement point: Computed item. [Carrier] PS Call Meaning: [Carrier] PS Call Setup Success Ratio = ([Carrier] Successful PS Call Setups/[Carrier] PS Call Attempts× 100% Setup Success Ratio Measurement point: Computed item. [Carrier] CS Call Drop Ratio Measurement item
Meaning & measurement point
[Carrier] CS Call Meaning: Number of speech service call drops caused by too many Drops (Too many Erasure frames. Erasure frames) Measurement point: None. [Carrier] CS Call Meaning: Number of speech service call drops caused by too high MARKOV frame error rate. Drops (Markov calls) Measurement point: None. [Carrier] CS Call Meaning: Number of speech service call drops due to no reverse frame Drops (No reverse received. frame received) Measurement point: None.
Item Information
Page 19 of 53
Meaning: Number of speech service call drops due to Abis interface abnormal (including BTS resource fault, Abis link resource fault, FMR resource fault and RPS resource fault). Measurement point: None. Meaning: Number of speech service call drops due to A interface [Carrier] CS Call abnormal (including abnormal release by MSC, call release due to A2 Drops (A2 interface circuit abnormal, CIE resource fault, TIE resource fault and interface LIM resource fault). abnormal) Measurement point: None. [Carrier] CS Call Meaning: Number of speech service call drops due to other causes (including system internal error and OAM interruption). Drops (Other causes) Measurement point: None. Meaning: [Carrier] CS Call Drops (Abis interface abnormal)
[Carrier] CS Call Drop Ratio = [Carrier] CS Call (([Carrier] CS Call Drops (Too many Erasure frames) + [Carrier] CS Call Drops (Markov calls)+ [Carrier] CS Call Drops (No reverse frame Drop Ratio received) + [Carrier] CS Call Drops (Abis interface abnormal) + [Carrier] CS Call Drops (A2 interface abnormal) + [Carrier] CS Call Drops (Other causes)) / [Carrier] Successful CS Call Setups)× 100% Measurement point: Computed item. [Carrier] PS Call Drop Ratio Measurement item
Meaning & measurement point
[Carrier] PS Call Meaning: Number of packet service call drops due to too many Erasure Drops (Too many frames. Erasure frames) Measurement point: None. [Carrier] PS Call Meaning: Number of packet service call drops due to no reverse frame Drops (No reverse received. frame received) Measurement point: None. [Carrier] PS Call Meaning: Number of packet service call drops due to Abis interface abnormal (including BTS resource fault, Abis link resource fault, FMR Drops (Abis resource fault and RPS resource fault). interface abnormal) Measurement point: None. Meaning: Number of packet service call drops due to A interface [Carrier] PS Call abnormal (including abnormal release by MSC, call release due to A2 Drops (A2 interface circuit abnormal, CIE resource fault, TIE resource fault and interface LIM resource fault). abnormal) Measurement point: None. [Carrier] PS Call Drops (PCF
Meaning: Number of packet service call drops due to link fault from BS to PCF (including A8 interface fault, PPU resource fault and abnormal
Item Information
failure) [Carrier] PS Call Drops (Other causes)
[Carrier] PS Call Drop Ratio
Page 20 of 53
release by PDSN). Measurement point: None. Meaning: Number of packet service call drops due to other causes (including system internal error and OAM interruption). Measurement point: None. Meaning: [Carrier] PS Call Drop Ratio= (([Carrier] PS Call Drops (Too many Erasure frames) + [Carrier] PS Call Drops (No reverse frame received) + [Carrier] PS Call Drops (Abis interface abnormal) + [Carrier] PS Call Drops (A2 interface abnormal) +[Carrier] PS Call Drops (PCF failure)+ [Carrier] PS Call Drops (Other causes)) / [Carrier] Successful PS Call Setups)× 100% Measurement point: Computed item.
[Carrier] TCH Congestion Ratio Measurement item [Carrier] TCH Assignment Requests [Carrier] Successful TCH Assignments
Meaning & measurement point Meaning: Number of TCH Assignment Requests for calls, hard handoffs and soft handoffs. Measurement point: The radio resource management module receives TCH Assignment Request. Meaning: Number of successful TCH assignments for calls, hard handoffs and soft handoffs. Measurement point: The radio resource management module sends TCH setup message.
[Carrier] TCH Meaning: Number of TCH assignment failures due to WALSH shortage. Assignment Failures (WALSH Measurement point: The radio resource management module sends TCH rejection message. shortage) Meaning: Number of TCH assignment failures due to low forward [Carrier] TCH power. Assignment Failures (Low Measurement point: The radio resource management module sends TCH forward power) rejection message. [Carrier] TCH Meaning: Number of TCH assignment failures due to low reverse power. Assignment Measurement point: The radio resource management module sends TCH Failures (Low rejection message. reverse power) [Carrier] TCH Assignment Failures (Channel shortage)
Meaning: Number of TCH assignment failures due to channel element (CE) shortage. Measurement point: The radio resource management module sends TCH rejection message.
[Carrier] TCH Assignment
Meaning: Number of TCH assignment failures due to other causes.
Item Information
Page 21 of 53
Failures (Other causes)
Measurement point: The radio resource management module sends TCH rejection message. Meaning: [Carrier] TCH Congestion Ratio = (1 - [Carrier] Successful [Carrier] TCH TCH Assignments / [Carrier] TCH Assignment Requests)× 100% Congestion Ratio Measurement point: Computed item. [Carrier] Traffic Amount Measurement item
Item meaning & measurement point
Meaning: Duration of CE seizure by speech service fundamental channel [Carrier] CE (FCH). (Unit: Second) Seizure Duration Measurement point: The accumulated duration of CE seizure by speech Speech FCH service FCH (including soft handoff). Meaning: Duration of CE seizure by packet service FCH. (Unit: Second) [Carrier] CE Seizure Duration - Measurement point: The accumulated duration of CE seizure by packet Packet FCH service FCH (including soft handoff). Meaning: Duration of CE seizure by packet service supplementary [Carrier] CE channel (SCH). (Unit: Second) Seizure Duration Measurement point: The accumulated duration of CE seizure by forward SCH packet service SCH. Meaning: Duration of WALSH seizure by FCH. (Unit: Second) [Carrier] WALSH Seizure Duration Measurement point: The accumulated duration of WALSH seizure by FCH (including soft handoff and hard handoff). Meaning: Density of traffic borne by CE seized by speech service FCH (including soft handoff). (Unit: Erl) [Carrier] CE Traffic Density - [Carrier] CE Traffic Density - Speech FCH = [Carrier] CE Seizure Speech FCH Duration - Speech FCH /(60×Granularity Period)
[Carrier] CE Traffic Density Packet FCH
[Carrier] CE Traffic Density Packet SCH
Measurement point: Computed item. Meaning: Density of traffic borne by CE seized by packet service FCH (including soft handoff). (Unit: Erl) [Carrier] CE Traffic Density - Packet FCH = [Carrier] CE Seizure Duration - Packet FCH / (60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by CE seized by packet service SCH. (Unit: Erl) [Carrier] CE Traffic Density - SCH = [Carrier] CE Seizure Duration SCH /(60×Granularity Period) Measurement point: Computed item. Meaning: Density of traffic borne by WALSH seized by all service FCH (including soft handoff and hard handoff). (Unit: Erl)
Item Information
Page 22 of 53
[Carrier] WALSH Traffic Density= [Carrier] WALSH Seizure Duration / [Carrier] WALSH (60×Granularity Period) Traffic Density Measurement point: Computed item. Meaning: Density of traffic borne by TCH excluding handoff. (Unit: Erl) [Carrier] TCH [Carrier] TCH Traffic Density (excluding HO)=[Carrier] TCH Seizure Traffic Density Duration (excluding HO) / ((Granularity Period)*60) (excluding HO) Measurement point: Computed item. [Carrier] Intra-BS Soft HO Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of Intra-BS Soft HO Requests. [Carrier] Intra-BS Soft HO Requests Measurement point: The radio resource management module sends the soft handoff decision. Measured by number of branches added or deleted. Meaning: Number of successful intra-BS soft handoffs. [Carrier] Successful Intra- Measurement point: BS receives Handoff Complete message. Measured BS Soft HOs by number of successful handoff branches. [Carrier] Intra-BS Meaning: Number of intra-BS soft handoff failures caused by the target Soft HO Failures cell radio resources request failure. (Radio resources Measurement point: Radio resource allocation fails in intra-BS soft unavailable) handoff procedure. [Carrier] Intra-BS Meaning: Number of intra-BS soft handoff failures caused by the Abis Soft HO Failures resources request failure. (Requested Abis Measurement point: Abis resource allocation fails in intra-BS soft resources handoff procedure. unavailable) [Carrier] Intra-BS Meaning: The timer expires when waiting for Handoff Complete Soft HO Failures Message. (Radio interface Measurement point: The timer expires when BS is waiting for Handoff abnormal) Complete Message. Meaning: Number of inter-BS soft handoff failures caused by MS [Carrier] Intra-BS rejection. Soft HO Failures Measurement point: BS receives Reject Order after it sends Handoff (MS rejected) Direction Message in intra-BS soft handoff procedure. [Carrier] Intra-BS Meaning: Number of intra-BS soft handoff failures caused by other Soft HO Failures reasons. (Other causes) Measurement point: Inter-BS soft handoff fails due to other causes. Meaning: [Carrier] Intra-BS Soft HO Success Ratio = ([Carrier] [Carrier] Intra-BS Successful Intra-BS Soft HOs / [Carrier] Intra-BS Soft HO Requests Soft HO Success ×100% Ratio Measurement point: Computed item.
Item Information
Page 23 of 53
[Carrier] Intra-SP Hard HO (within same BS) Success Ratio Measurement item
Meaning & measurement point
Meaning: Number of intra-SP hard handoff (within the same BS) requests . Measurement point: The source side sends intra-BS Hard Handoff Request message. Meaning: Number of successful intra-SP hard handoffs within the same [Carrier] Successful Intra- BS. SP Hard HOs Measurement point: The source side receives the Clear command, the within same BS cause value carried by which is "Handoff successful". [Carrier] Intra-SP Meaning: Number of intra-SP hard handoffs within the same BS which Hard HO (within fail due to radio resources unavailable at the target side. same BS) Failures Measurement point: The source BS receives the Handoff Failure (Radio resources message, the cause value carried by which is "Radio resources unavailable) unavailable". [Carrier] Intra-SP Meaning: Number of intra-SP hard handoffs within the same BS which Hard HO (within fail due to terrestrial resources unavailable at the target side. same BS) Failures (Requested Measurement point: The source side receives the Handoff Failure terrestrial message, the cause value carried by which is "Requested terrestrial resources resources unavailable". unavailable) [Carrier] Intra-SP Meaning: Number of intra-SP hard handoffs within the same BS which Hard HO (within fail because MS fails to handoff to the target side, and remains at the same BS) Failures source side. (Returned to Measurement point: BS receives Candidate Frequency Search Report original channel) Message from MS after it sends Handoff Direction Message. [Carrier] Intra-SP Meaning: Number of intra-SP hard handoffs within the same BS which Hard HO (within fail due to Reject Order received. same BS) Failures Measurement point: BS receives Reject Order after it sends Handoff (MS rejected) Direction Message. [Carrier] Intra-SP Meaning: Number of intra-SP hard handoffs within the same BS which Hard HO (within fail due to other causes. same BS) Failures Measurement point: The timer expires when the target side waiting for (Other causes) Handoff Complete Message from MS. Meaning: Intra-SP hard handoff (within the same BS) success ratio. [Carrier] Intra-SP Hard HO (within [Carrier] Intra-SP Hard HO (within same BS) Success Ratio= ([Carrier] same BS) Success Successful Intra-SP Hard HOs within same BS/ [Carrier] Intra-SP Hard HO (within same BS) Requests) × 100% Ratio Measurement point: Computed item. [Carrier] Intra-SP Hard HO (within same BS) Requests
[Carrier] Inter-SP Hard HO (within same BS) Success Ratio
Item Information
Measurement item [Carrier] Inter-SP Hard HO (within same BS) Requests [Carrier] Successful InterSP Hard HOs within same BS [Carrier] Inter-SP Hard HO (within same BS) Failures (Radio resources unavailable) [Carrier] Inter-SP Hard HO (within same BS) Failures (Requested terrestrial resources unavailable) [Carrier] Inter-SP Hard HO (within same BS) Failures (Returned to original channel)
Page 24 of 53
Meaning & measurement point Meaning: Number of inter-SP hard HO (within the same BS) requests. Measurement point: BS sends Handoff Required message to the MSC. Meaning: Number of successful inter-SP hard HOs within the same BS. Measurement point: The source BS receives Clear command, the cause value carried by which is "Handoff successful". Meaning: Number of inter-SP hard handoffs within the same BS which fail due to radio resources unavailable. Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". Meaning: Number of inter-SP hard handoffs within the same BS which fail due to terrestrial resources unavailable. Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". Meaning: Number of inter-SP hard handoffs within the same BS which fail because MS returns to the original channel. Measurement point: BS receives Candidate Frequency Search Report Message from MS after it sends Handoff Direction Message.
Meaning: Number of inter-SP hard handoffs within the same BS which fail because MS is rejected. Measurement point: BS receives Reject Order after it sends Handoff Direction Message. [Carrier] Inter-SP Meaning: Number of inter-SP hard handoffs within the same BS which Hard HO (within fail due to other causes. same BS) Failures Measurement point: The timer expires when the target side is waiting for (Other causes) Handoff Complete Message from MS. Meaning: Inter-SP Hard HO (within same BS) Success Ratio. [Carrier] Inter-SP Hard HO (within [Carrier] Inter-SP Hard HO (within same BS) Success Ratio= ([Carrier] same BS) Success Successful Inter-SP Hard HOs within same BS/ [Carrier] Inter-SP Hard HO (within same BS) Requests) × 100% Ratio Measurement point: Computed item. [Carrier] Inter-SP Hard HO (within same BS) Failures (MS rejected)
[Carrier] Inter-BS Outgoing Hard HO Success Ratio Measurement item
Meaning & measurement point
Item Information
[Carrier] Inter-BS Outgoing Hard HO Requests [Carrier] Successful InterBS Outgoing Hard HOs [Carrier] Inter-BS Outgoing Hard HO Failures (Radio resources unavailable) [Carrier] Inter-BS Outgoing Hard HO Failures (Requested terrestrial resources unavailable) [Carrier] Inter-BS Outgoing Hard HO Failures (Returned to original channel)
Page 25 of 53
Meaning: Number of Inter-BS Outgoing Hard HO Requests. Measurement point: BS sends Handoff Required message to the MSC. Meaning: Number of successful inter-BS outgoing hard handoffs. Measurement point: The source BS receives Clear command, the cause value carried by which is "Handoff successful". Meaning: Number of inter-BS outgoing hard handoff failures caused by radio resources unavailable . Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". Meaning: Number of inter-BS outgoing hard handoff failures caused by requested terrestrial resources unavailable. Measurement point: BS receives the Handoff Reject message, the cause value carried by which is "Radio resources unavailable". Meaning: Number of inter-BS outgoing hard handoff failures caused by the returning of MS to original channel. Measurement point: BS receives Candidate Frequency Search Report Message from MS after it sends Handoff Direction Message.
Meaning: Number of inter-BS outgoing hard handoff failures caused by MS rejection. Measurement point: BS receives Reject Order after it sends Handoff Direction Message. [Carrier] Inter-BS Meaning: Number of inter-BS outgoing hard handoff failures caused by other reasons. Outgoing Hard HO Failures Measurement point: The timer expires when the target BS is waiting for (Other causes) Handoff Complete Message from MS. Meaning: Inter-BS outgoing hard HO success ratio. [Carrier] Inter-BS Outgoing Hard HO Failures (MS rejected)
[Carrier] Inter-BS [Carrier] Inter-BS Outgoing Hard HO Success Ratio = ([Carrier] Outgoing Hard Successful Inter-BS Outgoing Hard HOs / [Carrier] Inter-BS Outgoing HO Success Ratio Hard HO Requests ×100% Measurement point: Computed item. [Carrier] Inter-BS Incoming Hard HO Success Ratio Measurement Meaning & measurement point item [Carrier] Inter-BS Meaning: Number of Inter-BS Incoming Hard HO Requests. Incoming Hard Measurement point: Handoff Reject message is received from the MSC. HO Requests
Item Information
Page 26 of 53
[Carrier] Successful InterBS Incoming Hard HOs
Meaning: Number of successful inter-BS incoming hard handoffs.
[Carrier] Inter-BS Incoming Hard HO Failures (Resource allocation failed)
Meaning: Number of inter-BS incoming hard handoff failures caused by resource allocation failure. Measurement point: The target BS receives Handoff request message but fails to get the requested call resources, and sends Handoff Failure to the MSC. Meaning: Number of inter-BS incoming hard handoff failures caused by execution failure. Measurement points:
Measurement point: Handoff Complete message is sent to the MSC.
[Carrier] Inter-BS (1) Speech service call: The timer expires when BS is waiting for Incoming Hard Handoff Completion message from MS times out, and then BS sends HO Failures (Execution failed) Handoff Failure to the MSC. (2) Packet service call: The timer expires when BS is waiting for Handoff Completion message or A9-AL Connected Ack, and then BS sends Handoff Failure to the MSC. Meaning: Number of inter-BS incoming hard handoff failures because [Carrier] Inter-BS the execution is interrupted by the MSC. Incoming Hard Measurement point: The target BS receives Clear Command from the HO Failures MSC after it receives Handoff Request and responds with Handoff (Interrupted by Request Ack and before it sends Handoff Complete or Handoff Failure to MSC) the MSC. [Carrier] Inter-BS Meaning: Number of intra-BS incoming hard handoff failures due to other causes. Incoming Hard HO Failures Measurement point: The target BS receives the Clear message from the (Other causes) bottom layer. Meaning: inter-BS incoming hard HO success ratio. [Carrier] Inter-BS [Carrier] Inter-BS Incoming Hard HO Success Ratio = ([Carrier] Incoming Hard Successful Inter-BS Incoming Hard HOs / [Carrier] Inter-BS Incoming HO Success Ratio Hard HO Requests ×100% Measurement point: Computed item. [Carrier] Inter-BS Soft HO Success Ratio Measurement item
Meaning & measurement point
[Carrier] Inter-BS Meaning: Number of Inter-BS Soft HO Requests. Soft HO Requests Measurement point: BS sends A7-Handoff Request message. [Carrier] Successful Inter-
Meaning: Number of successful inter-BS soft handoffs. Measurement point: Handoff Complete message received by BS.
Item Information
Page 27 of 53
BS Soft HOs [Carrier] Inter-BS Soft HO Failures (Radio resources unavailable)
Meaning: Number of inter-BS soft handoff failures caused by unavailable radio resources at the target side. Measurement point: The source BS receives A7-Handoff Request Ack, the cause value carried by which is "No radio resource available".
[Carrier] Inter-BS Meaning: Number of inter-BS soft handoff failures caused by Soft HO Failures unavailable requested Abis resources. (Requested Abis resources Measurement point: Temporarily not measured. unavailable) [Carrier] Inter-BS Meaning: Number of inter-BS soft handoff failures caused by radio Soft HO Failures interface fault. (Radio interface Measurement point: The timer expires when BS is waiting for Handoff fault) Complete Message. Meaning: Number of inter-BS soft handoff failures caused by MS [Carrier] Inter-BS rejection. Soft HO Failures Measurement point: BS receives Reject Order after it sends Handoff (MS rejected) Direction Message. [Carrier] Inter-BS Meaning: Number of inter-BS soft handoff failures caused by A3 link Soft HO Failures setup failure. (A3 link setup Measurement point: The timer expires when BS is waiting for A3failed) Connect Ack, or A3-Connect Ack carries failure indication. [Carrier] Inter-BS Meaning: Number of inter-BS soft handoff failures caused by other Soft HO Failures reasons. (Other causes) Measurement point: Inter-BS soft handoff fails due to other causes. Meaning: Inter-BS soft handoff success ratio. [Carrier] Inter-BS Soft HO Success [Carrier] Inter-BS Soft HO Success Ratio = ([Carrier] Successful InterBS Soft HOs / [Carrier] Inter-BS Soft HO Requests ×100% Ratio Measurement point: Computed item. Carrier Power Control Measurement Carrier Power Control Measurement provides statistic and measurement data for such item parameters as average carrier transmitting power, Eb/Nt, RSSI and FER. Measurement items are calculated upon the CSPU board, from which the BAM then acquires statistic data. It only includes one measurement unit. z
Link Information Measurement
Link Information Measurement Measurement item
Meaning & measurement point Meaning: Average Eb/Nt of the reverse link. (Unit: dB)
Item Information
Page 28 of 53
Calculation formula: 21 + (x - 255)×0.25 = dB
Average Eb/Nt
For example: If the reported value is 199, the result is 21+(199-255) ×0.25 = 21 - 14 = 7dB.
Measurement point: The radio resource management module acquires Eb/Nt information from link status report. Then it calculates the average value in 5 minutes. Meaning: Average received signal strength of carrier. (Unit: dB) Measurement point: The radio resource management module acquires Average RSSI RSSI information from common measurement report. Then it calculates the average value in 5 minutes. Meaning: Frame error rate on the reverse channels. (Unit: %) Reverse Link Average FER of Measurement point: The radio resource management module acquires FER information from link status report. Then it calculates the average Carrier value in 5 minutes. Meaning: The average transmit power of carrier (including control channel and traffic channel). (Unit: dBm) Average Transmit Power of Carrier Measurement point: The radio resource management module acquires the transmit power information of carrier from common measurement report. Then it calculates the average value in 5 minutes. Carrier Channel Performance Measurement Carrier Channel Performance Measurement provides statistic and measurement data for the number of control channels, channel load, channel available ratio, etc. It includes the following measurement units: z
Channel Load Measurement
z
Control Channels
z
TCH Available Ratio
Channel Load Measurement Measurement item Forward Load of Carrier
Reverse Load of Carrier Control Channels
Meaning & measurement point Meaning: Forward load of current carrier. The forward load is the ratio of current transmitting power to max. transmitting ratio of carrier. Measurement point: The radio resource management module updates carrier forward load according to BT report content, upon receipt of common measurement report. Meaning: Temporarily set to 0. Measurement point: None.
Item Information
Page 29 of 53
Measurement item
Meaning & measurement point Meaning: Number of forward common channels of sector carrier. Measurement points:
Control Channels (1) The number of control channels is measured when carrier status (management status, operating status) changes. (2) The result is set to 0 when the carrier is unavailable. TCH Available Ratio Measurement item
Meaning & measurement point
Meaning: Number of traffic channels configured in the sector carrier. Configured TCHs Measurement point: As a fixed number of traffic channels are configured in every carrier, the value of this measurement shall be provided by every correctly configured carrier. Meaning: Number of available traffic channels in the sector carrier. Measurement points:
Available TCHs
(1) The number of available traffic channels is updated when carrier status (management status, operating status) changes. (2) The result is set to 0 when the carrier is unavailable. (3) When the carrier becomes available, the result is the number configured.
A2 Interface Performance Measurement A2 Interface Performance Measurement provides statistic and measurement data for such item parameters as the number of E1 faults, the number of MSC resetting circuits and the number of failures in assigning QCELP 13K, QCELP 8K or EVRC. It only includes one measurement unit. z
A2 Interface Measurement
A2 Interface Measurement Measurement item Calls Disconnected due to MSC Resetting Circuits Calls
Meaning & measurement point Meaning: Number of calls which are disconnected because the MSC sends "Reset CIC". Measurement point: BS receives a Reset CIC message sent by the MSC and there is a call ongoing in this circuit. Meaning: Number of calls which are disconnected due to E1 failures.
Item Information
Page 30 of 53
Disconnected due Measurement point: E1 status fault occurs and there is call ongoing in the to Circuit Failures circuit of the E1. Counted once for every voice circuit. Circuit Resets due Meaning: Number of Reset CIC messages sent by the BS due to broken SCCP link. to SCCP Link Interruption Measurement point: BS sends Reset CIC message. Meaning: Number of times that the service option is configured as QCELP 13K QCELP 13K. Assignments Measurement point: None. Meaning: Number of times that the service option is configured as QCELP 8K QCELP 8K. Assignments Measurement point: None. Meaning: Number of times that the service option is configured as EVRC EVRC. Assignments Measurement point: None. Meaning: Number of failures in configuring the service option as QCELP QCELP 13K 13K. Assignment Failures Measurement point: None. Meaning: Number of failures in configuring the service option as QCELP QCELP 8K 8K. Assignment Failures Measurement point: None. EVRC Meaning: Number of failures in configuring the service option as EVRC. Assignment Measurement point: None. Failures Meaning: QCELP 13K assignment success ratio. QCELP 13K Assignment Success Ratio
QCELP13K Assignment Success Ratio=
QCELP 8K Assignment Success Ratio
QCELP8K Assignment Success Ratio=
EVRC Assignment Success Ratio
EVRC Assignment Success Ratio=
100*(1-QCELP13K Assignment Failures/QCELP13K Assignments) Measurement point: Computed item. Meaning: QCELP 8K assignment success ratio.
100*(1-QCELP 8K Assignment Failures/QCELP 8K Assignments) Measurement point: Computed item. Meaning: EVRC assignment success ratio.
100*(1-EVRC Assignment Failures/EVRC Assignments) Measurement point: Computed item.
MTP Signaling Link Measurement
Item Information
Page 31 of 53
MTP signaling link measurement provides various parameter measurements when the signaling link is in normal, faulty, or congested status and the measurement for signaling link to receive and send messages. It only includes one measurement unit. z
Signaling Link
Signaling Link Measurement item
Meaning & measurement point Meaning: Duration for the signaling link in available status. The available status indicates that the transmission service is available. In a similar way, the unavailable status indicates the transmission service is unavailable. Measurement point: The start time is when the signaling link becomes available and the end time is when the signaling link becomes unavailable.
Duration of Link in Service
The unavailable status of signaling link includes the following conditions: (1) Signaling link failure (2) Processor failure (3) Management inhibited
(4) Receive remote handoff command. Meaning: Duration for the signaling link in unavailable status. Duration of Signaling Link Measurement point: The start time is when the signaling link becomes Unavailable (Any unavailable and the end time is when the signaling link becomes cause) available. Meaning: Number of signaling link failures within a certain period. The signaling link failure indicates that signaling link at MTP-2 layer is Signaling Link interrupted. Failures (All causes) Measurement point: MTP-2 layer reports the interruption of signaling link. Meaning: Duration for the signaling link in faulty status. Duration of Measurement point: The start time is when the MTP-2 layer reports the Signaling Link interruption of signaling link and the end time is when it reports the Failure activation of signaling link service. Meaning: Number of signaling link management inhibits within a certain Local period. Management Measurement point: The BS inhibits signaling link management and Inhibitings receives management inhibit allowed message of peer BS. Meaning: Duration for the signaling link in local management inhibited
Item Information
Page 32 of 53
status. Duration of Local Measurement point: The start time is when local management of Management signaling link is successfully inhibited and the end time is when it is Inhibiting uninhibited. Meaning: Number of times that signaling link is inhibited by remote management within a certain period. Remote Management Measurement point: The local end receives the command of remote Inhibitings signaling link management inhibited and considers that the management can be inhibited, i.e., remote management is inhibited. Meaning: Duration for the signaling link in remote management inhibited Duration of status. Remote Management Measurement point: The start time is when remote management of Inhibiting signaling link is inhibited and the end time is when it is uninhibited. Meaning: Number of remote processor failures for signaling link within a Remote Processor certain period. Failures Measurement point: The signaling link receives remote processor failure message when it is not in the status of remote processor failure. Meaning: Duration for the signaling link in remote processor failure status. Duration of Measurement point: The start time is when the signaling link, not in the Remote Processor remote processor failure status, receives remote processor failure Failure message, and the end time is when the signaling link, in the status of remote processor failure, receives the handoff command from remote end, and FISU/MSU, or local signaling link failure message. Meaning: Number of local signaling link handoffs within a certain Local Automatic period. Switchovers Measurement point: The BS hands off signaling link to other links. Message Signal Meaning: Number of MSUs sent by the BS within a certain period. Units Sent Measure point: The BS sends a message to the peer BS. Meaning: Number of SIF and SIO octets sent by the BSwithin a certain SIF and SIO period. Octets Sent Measurement point: The BS sends the message to the remote end. Message Signal Meaning: Number of MSUs received within a certain period. Units Received Measure point: The BS receives a message from the remote end. Meaning: Number of SIF and SIO octets received within a certain period. SIF and SIO Octets Received Measurement point: The BS receives the message from the remote end. Meaning: Number of signaling link congestions within a certain period. Signaling Link Congestions Measurement points: Congestion occurs to the BS. Meaning: Duration of local signaling link congestion. Duration of Measurement point: The start time is when BS signaling link is Signaling Link congested and the end time is when BS signaling link congestion is Congestion removed.
Item Information
Page 33 of 53
MSUs Discarded Meaning: Number of MSUs discarded due to BS signaling link due to Signaling congestion. Link Congestion Measurement point: Signaling link congestion occurs to the BS. Meaning: The average sending load of signaling link within a certain period. Signaling Link Transmitting Ratio
Signaling Link Transmitting Ratio=
Signaling Link Receiving Ratio
Signaling Link Receiving Ratio=
100*(SIF and SIO Octets Sent+6*Message Signal Units (MSUs) Sent)/ (491520*(Granularity Period)) Measurement point: Computed item. Meaning: The average receiving load of signaling link within a certain period.
100*(SIF and SIO Octets Received+6*Message Signal Units Received)/ (491520*(Granularity Period)) Measurement point: Computed item. PCF Call Processing Measurement PCF Call Processing Measurement provides measurement of packet call activation, SDB transmission, and inter-PCF handoffs. It includes the following measurement units: z z z
Packet Call Activation SDB Transmission Inter-PCF Handoffs
Packet Call Activation Measurement item MS Reactivate Attempts Successful MS Reactivations PCF Reactivate Attempts Successful PCF Reactivations
Meaning & measurement point Meaning: Number of call activation requests originated by the MS. Measurement point: PCF receives A9-Setup-A8 message in dormant status. Meaning: Number of successful call activations originated by the MS. Measurement point: PCF returns A9-Connect-A8 message to the BS after successfully processing A9-Setup-A8 in dormant status. Meaning: Number of call activation requests originated by the PCF. Measurement point: PCF sends A9-BS-Service-Request message to the BS in dormant status. Meaning: Number of successful call activations originated by the PCF. Measurement point: PCF returns A9-Connect-A8 message to the BS after successfully processing A9-Setup-A8 from the BS in dormant
Item Information
Page 34 of 53
status. SDB Transmission Measurement item MS Sends SDB
PCF Sends SDB
Meaning & measurement point Meaning: Number of times that MS Sends SDB. Measurement point: PCF sends Data-Burst message to the BS in dormant status. Meaning: Number of times that PCF Sends SDB. Measurement point: PCF sends A9-Short-Data-Delivery message to the BS in dormant status.
Inter-PCF Handoffs Measurement item
Meaning & measurement point
Incoming HOs to Meaning: Number of incoming HOs to this PCF with MS active. this PCF with MS Measurement point: When the destination PCF receives A9-Setup-A8 Active message, the data, which is ready, indicates that DRS is 1 (HO is 1, too). Outgoing HOs Meaning: Number of outgoing HOs to this PCF with MS active. from this PCF Measurement point: PCF receives A9-AL Disconnected in active status. with MS active Incoming HOs to Meaning: Number of incoming HOs to this PCF with MS dormant. this PCF with MS Measurement point: When the destination PCF receives A9-Setup-A8 Dormant message, the data, which is ready, indicates that DRS is 0 (HO is 0, too). PCF Data Processing Measurement PCF Data Processing Measurement provides measurement of PCF data flow, buffer area load, and packets discarded. It includes the following measurement units: z z z
PCF Data Flow PCF Buffer Area Load Measurement Packets Discarded by PCF
PCF data flow measurement is the measurement of the data sent to the MS by PDSN; PCF buffer area load measurement is the measurement of PCF buffer area overflows; PCF packet discarded measurement is the measurement of the packet discarding ratio of BPU. PCF Data Flow Measurement
Item Information
item PCF Downlink Packets PCF Downlink Bytes
Average Size of PCF Downlink Packets
Page 35 of 53
Meaning & measurement point Meaning: Number of downlink data packets received by PCF. Measurement point: The GRE packet is received from PDSN. Meaning: Number of downlink data bytes received by PCF. (Unit: KB) Measurement point: The GRE packet is received from PDSN. Meaning: Average size of downlink data packets received by PCF (Unit: byte/packet) Average Size of Downlink Data Packets= PCF Downlink Bytes/PCF Downlink Packets*1024 Measurement point: Computed item. Meaning: Average flow of PCF downlink data (Unit: Kbit/s)
Average Flow of PCF Downlink Data
Average Flow of PCF Downlink Data= 8*PCF Downlink Bytes/(60*(Granularity Period)) Measurement point: Computed item.
PCF Buffer Area Load Measurement Measurement item PCF Buffer Area Overflows
Meaning & measurement point Meaning: Number of PCF buffer area overflows. Measurement point: The occupancy of PCF buffer area exceeds the max.
Packets Discarded by PCF Measurement item
Meaning & measurement point
Packets Discarded Meaning: Number of packets discarded due to buffer area overflow. due to Buffer Measurement point: The buffer for the GRE packet newly received from Area Overflow PDSN is unavailable due to full buffer area. Packets Discarded Meaning: Number of packets discarded due to sequencing error due to Sequencing Measurement point: The GRE packet SN newly arrived is less than what Error is anticipated. BSC Data Processing Measurement BSC Data Processing Measurement provides measurement of BSC uplink/downlink data flow and packets discarded by the BSC. It includes the following measurement units: z z
BSC Uplink Packet Data Flow BSC Downlink Packet Data Flow
Item Information
z z
Page 36 of 53
Buffer Area Load Measurement Packets Discarded by BSC
BSC Uplink Packet Data Flow Measurement item
Meaning & measurement point
Meaning: Number of uplink data packets received by BSC. Uplink Packets Received by BSC Measurement point: The data packet is received from RLP. Meaning: Number of uplink bytes received by BSC. Uplink Bytes Received by BSC Measurement point: The data packet is received from RLP. Meaning: Average size of uplink data packets. (Unit: byte/packet) Average Size of Average Size of Uplink Data Packets Received by BSC= Uplink Data Packets Received (Uplink Bytes Received by BSC/Uplink Packets Received by BSC) by BSC *1024 Measurement point: Computed item. Meaning: Average flow of uplink data. (Unit: Kbit/s) Average Flow of Average Flow of BSC Uplink Data= BSC Uplink Data 8*Uplink Bytes Received by BSC/(60*(Granularity Period)) Measurement point: Computed item. BSC Downlink Packet Data Flow Measurement item
Meaning & measurement point
Downlink Packets Meaning: Number of uplink data packets received by BSC. Received by BSC Measurement point: The GRE packet is received from PCF. Downlink Bytes Meaning: Number of downlink data bytes received by BSC. Received by BSC Measurement point: The GRE packet is received from PCF. Meaning: Average size of downlink data packet. (Unit: byte/packet) Average Size of Average Size of Downlink Data Packets Received by BSC= Downlink Data Packets Received (Downlink Bytes Received by BSC/Downlink Packets Received by by BSC BSC) *1024 Measurement point: Computed item. Average Flow of BSC Downlink Data
Meaning: Average flow of uplink data. (Unit: Kbit/s) Average Flow of BSC Downlink Data=
Item Information
Page 37 of 53
8*Downlink Bytes Received by BSC/(60*(Granularity Period)) Measurement point: Computed item. Buffer Area Load Measurement Measurement item BSC Downlink Buffer Area Overflows
Meaning & measurement point Meaning: Number of BSC downlink buffer area overflows. Measurement point: The occupancy of CPPU buffer area exceeds the max.
Packets Discarded by BSC Measurement item
Meaning & measurement point
Packets Discarded due to Downlink Buffer Area Overflow
Meaning: Number of packets discarded due to downlink buffer area overflow. Measurement point: The buffer for the GRE packet newly received from PCF becomes unavailable due to full buffer area.
CSPU CPU Occupancy Measurement CSPU CPU Occupancy Measurement provides measurement of CSPU occupancy. It includes only one measurement unit: z
CSPU CPU Occupancy
CSPU CPU Occupancy Measurement item CSPU CPU Occupancy
Meaning & measurement point Measurement: CSPU CPU occupancy. Measurement point: The measurement is performed by VOS, the setting is completed in the foreground, and the average value is obtained from the BAM.
Flow Chart The flow charts referred to in the description of measurement items. ¡¡ Figure 01 MTC Flow (CS)
Item Information
Figure 02 MTC Flow (PS)
Page 38 of 53
Item Information
Figure 03 MOC Flow (CS)
Page 39 of 53
Item Information
Figure 04 MOC Flow (PS)
Page 40 of 53
Item Information
Figure 05 MS Location Update Flow (CREF Mode)
Page 41 of 53
Item Information
Figure 06 MS Location Update Flow (DT1 Mode)
Figure 07 MT/PP Short Message (1)
Figure 08 MT/PP Short Message (2)
Page 42 of 53
Item Information
Figure 09 MO/PP Short Message
Figure 10 Broadcast Short Message
Page 43 of 53
Item Information
Figure 11 TCH Downlink Short Message
Figure 12 TCH Uplink Short Message
Figure 13 Intra-BS Soft HO Flow
Page 44 of 53
Item Information
Figure 14 Inter-BS Soft HO Adding Branch Flow
Page 45 of 53
Item Information
Figure 15 Inter-BS Soft HO Branch Deleting Flow
Page 46 of 53
Item Information
Figure 16 Intra-SP Hard HO (Within Same BS) Flow
Page 47 of 53
Item Information
Figure 17 Inter-SP Hard HO (Within Same BS) & Inter-BS Hard HO Flow
Page 48 of 53
Item Information
Figure 18 Link Information Measurement Point
Figure 19 Carrier Load Measurement Point
Page 49 of 53
Item Information
Figure 20 MS Sends SDB
Figure 21 PCF Sends SDB
Page 50 of 53
Item Information
Figure 22 Inter-PCF ACTIVE Handoff
Page 51 of 53
Item Information
Figure 23 Inter-PCF DORMANT Handoff
Page 52 of 53
Item Information
Page 53 of 53
