GSM GSM Huawei NSS MSC V33 Functional Specification

Data Export Date: 18 Oct 2007

• 1. Change History
• 2. Document References
• 3. Outstanding Issues
• 4. Network Model
• 4.1 Network Objects
• 4.2 Reference Objects
• 5. Busy Hours
• 6. Constants
• 7. Performance Indicators
• 8. Database Schema
• 8.1 NC Tables
• 8.2 Raw Tables
• 8.3 Views
• 9. Performance Alarms
• 10. Reports
• 11. Data Availability

This section describes the network objects (logical and physical) that are referenced in this technology pack's data model.

LAC

Location/Paging Area Code; a group of cells, managed by an MSC, that a mobile station's location may be recorded against.

MSC

The Mobile Switching Centre has circuit/voice switching functions, as well as linking several BSCs to the core network and managing some of their functions (eg inter-BSC handover). It is also connected to an SS7 network for database queries.

Processor

The Processor object represents a CPU inside another network element. Some elements have more than one Processor.

Route_IF

For each logical Route Interface, there will be 2 entries - 1 for the interface at each end, as it is the interfaces that report the data. Routes may connect switches and other nodes (including BSCs) in a circuit-switched network.

Signalling_LinkSet

A set of Signalling Links between two points.

Signalling_Link

The SS7 Signalling data link is a full-duplex, digital transmission channel, usually operating at 64 kbit/s.

Signalling_Point

Represents a signalling entity that is part of a Node.

VLR

The Visitor Location Register is distributed, and one VLR is usually associated with each MSC. It caches a subset of the information from the HLR, for subscribers that connected locally, plus some other temporary information.

This section describes the reference objects that are used only as lookups for compound-keyed raw data.

Not applicable to this tech pack.

This section lists the busy hours that are defined in this technology pack, grouped by the network object to which they relate, as follows:

• MSC
• Route_IF
• Signalling_Link
• Signalling_LinkSet
• VLR

This section lists all constants that are defined in this technology pack, and which may be referenced in KPI expressions.

None.

This section lists the performance indicators (both one-to-one counter mappings, and complex KPIs) that are defined in this technology pack, grouped by the network object to which they relate, as follows:

• LAC
• MSC
• Route_IF
• Signalling_Link
• Signalling_LinkSet
• Signalling_Point
• VLR

Note that all KPIs will have total, average, minimum and maximum values calculated for daily, weekly, and monthly summaries. Individual groups of KPIs may have additional summary types (including busy hours) applied to them, and these are listed against the respective KPIs in the tables below.

• LAC.Neutral.GSM.mobility
• LAC.Neutral.GSM.page

LAC.Neutral.GSM.mobility

The results of updates from or within a Location Area (LA)

LAC.Neutral.GSM.page

The results of paging activity within a Location Area

• MSC.Neutral.GSM.call_setup
• MSC.Neutral.GSM.destination
• MSC.Neutral.GSM.handover
• MSC.Neutral.GSM.page
• MSC.Neutral.GSM.services
• MSC.Neutral.GSM.traffic.total_switched_traffic
• MSC.Neutral.GSM.traffic

MSC.Neutral.GSM.call_setup

The call setup performance for calls originating or terminating at an MS in the BSS controlled by this MSC

MSC.Neutral.GSM.destination

The calls managed by an MSC to a particular destination MSC

MSC.Neutral.GSM.handover

The results of handovers passing through this MSC, either (a) to or from a different MSC, or (b) between two BSCs controlled by this MSC

MSC.Neutral.GSM.page

The Paging activity to Mobiles in the BSS controlled by this MSC

MSC.Neutral.GSM.services

The usage of a Supplementary Service (SS) on an MSC. These are sometimes reported by the HLR, but are associated with an MSC in this data model

MSC.Neutral.GSM.traffic.total_switched_traffic

The call-switching performance of the MSC for a all switched traffic types

MSC.Neutral.GSM.traffic

The call-switching performance of the MSC for a particular traffic type

The performance data measurements for this KPI group are recorded against the combination of MSC and Traffic_Type (Traffic_Type_Id)

• Route_IF.Neutral.GSM.transmission.forecast
• Route_IF.Neutral.GSM.transmission

Route_IF.Neutral.GSM.transmission.forecast

The forecast performance of the Route

Route_IF.Neutral.GSM.transmission

The performance of the Route as seen from this end (Interface), reported by an MSC

• Signalling_Link.Neutral.GSM.link

Signalling_Link.Neutral.GSM.link

The performance of an individual Signalling Link

• Signalling_LinkSet.Neutral.GSM.forecast
• Signalling_LinkSet.Neutral.GSM.signalling_linkset

Signalling_LinkSet.Neutral.GSM.forecast

The forecast performance of a set of Signalling Links

Signalling_LinkSet.Neutral.GSM.signalling_linkset

The performance of a set of Signalling Links

• Signalling_Point.Neutral.GSM.signalling_point

Signalling_Point.Neutral.GSM.signalling_point

The signalling networks performance, as seen from a Signalling Point

• VLR.Neutral.GSM.mobility

VLR.Neutral.GSM.mobility

The Mobility management activity (e.g. Location Area updates) in the BSS controlled by this VLR

This section lists the hierarchy ("NC") tables that are included in this technology pack's database schema.

nc_lac

nc_msc

nc_processor

nc_route

nc_ss7_link

nc_ss7_linkset

nc_ss7_point

nc_vlr

nc_lac_sec

nc_msc_sec

nc_processor_sec

nc_route_sec

nc_ss7_link_sec

nc_ss7_linkset_sec

nc_ss7_point_sec

nc_vlr_sec

This section lists the performance tables that are included in this technology pack's database schema, grouped by the network object to which they relate, as follows:

• LAC
• MSC
• Route_IF
• Signalling_Link
• Signalling_LinkSet
• Signalling_Point
• VLR

lac_resource_access_raw

msc_call_destinations_raw

msc_call_setup_raw

msc_handover_results_raw

msc_resource_pages_raw

msc_supplementary_services_raw

msc_traffic_raw

route_interface_transmission_raw

ss7_link_availability_raw

ss7_link_performance_raw

ss7_link_utilisation_raw

ss7_linkset_2_raw

ss7_linkset_raw

ss7_point_raw

vlr_resource_mobility_raw

This section lists the views that are included in this technology pack's database schema.

nc_processor_bsc_v

SELECT nc_id,
processor_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
processor_name,
processor_type,
technology,
vendor,
processor_version
FROM nc_processor
WHERE LOWER(node_type) = "bsc";

nc_processor_ggsn_v

SELECT nc_id,
processor_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
processor_name,
processor_type,
technology,
vendor,
processor_version
FROM nc_processor
WHERE LOWER(node_type) = "ggsn";

nc_processor_hlr_v

SELECT nc_id,
processor_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
processor_name,
processor_type,
technology,
vendor,
processor_version
FROM nc_processor
WHERE LOWER(node_type) = "hlr";

nc_processor_msc_v

SELECT nc_id,
processor_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
processor_name,
processor_type,
technology,
vendor,
processor_version
FROM nc_processor
WHERE LOWER(node_type) = "msc";

nc_processor_sgsn_v

SELECT nc_id,
processor_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
processor_name,
processor_type,
technology,
vendor,
processor_version
FROM nc_processor
WHERE LOWER(node_type) = "sgsn";

nc_ss7_link_bsc_v

SELECT nc_id,
ss7_link_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
ss7_link_name,
technology
FROM nc_ss7_link
WHERE LOWER(node_type) = "bsc";

nc_ss7_link_mgw_v

SELECT nc_id,
ss7_link_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
ss7_link_name,
technology
FROM nc_ss7_link
WHERE LOWER(node_type) = "mgw";

nc_ss7_link_msc_v

SELECT nc_id,
ss7_link_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
ss7_link_name,
technology
FROM nc_ss7_link
WHERE LOWER(node_type) = "msc";

nc_ss7_linkset_bsc_v

SELECT nc_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
designed_link_failures,
ss7_linkset_name,
technology
FROM nc_ss7_linkset
WHERE LOWER(node_type) = "bsc";

nc_ss7_linkset_mgw_v

SELECT nc_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
designed_link_failures,
ss7_linkset_name,
technology
FROM nc_ss7_linkset
WHERE LOWER(node_type) = "mgw";

nc_ss7_linkset_msc_v

SELECT nc_id,
ss7_linkset_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
adjacent_node_id,
data_rate,
designed_link_failures,
ss7_linkset_name,
technology
FROM nc_ss7_linkset
WHERE LOWER(node_type) = "msc";

nc_ss7_point_bsc_v

SELECT nc_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
ss7_point_name,
adjacent_node_id,
technology
FROM nc_ss7_point
WHERE LOWER(node_type) = "bsc";

nc_ss7_point_mgw_v

SELECT nc_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
ss7_point_name,
adjacent_node_id,
technology
FROM nc_ss7_point
WHERE LOWER(node_type) = "mgw";

nc_ss7_point_msc_v

SELECT nc_id,
ss7_point_id,
node_id,
region_id,
network_id,
timestamp,
node_name,
node_type,
ss7_point_name,
adjacent_node_id,
technology
FROM nc_ss7_point
WHERE LOWER(node_type) = "msc";

This section shows details of the performance alarms that are defined in this technology pack:

None.

This section shows details of the reports that are defined in this technology pack:

Historical Route Traffic Report

This report shows key route traffic statistics for a single route over all the weeks in the forecast base range. The report shows available & defined circuits, % congestion, carried traffic, offered traffic, lost traffic, critical traffic, 3-DAV and 5-DAV traffic, % utilisation and grade of service. The report is always generated with weekly busy hour values.

Overview

Report Parameters

Report Components

Interconnect Traffic Graph

This graph shows the total traffic profile for all routes connecting an MSC to a POI (a POI route).

Overview

Report Parameters

Report Components

Inter-switch Traffic Graph

This graph shows the total traffic profile for all routes connecting an MSC to an MSC (a trunk route).

Overview

Report Parameters

Report Components

LAC Paging Graph

This shows the performance of LAC paging attempts within a Location Area

Overview

Report Parameters

Report Components

Linkset Availability Report Link KPIs

This report shows the availability of a set of linksets and failures and unavailability on the constituent links.

Overview

Report Parameters

Report Components

Linkset Availability Report Linkset KPIs

This report shows the availability of a set of linksets and failures

Overview

Report Parameters

Report Components

Linkset Utilisation Report

This report shows the utilisation of a set of linksets through the traffic carried on their constituent links.

Overview

Report Parameters

Report Components

MSC Calls Graph

This graph shows network incoming and mobile originating call statistics for the specified MSC over the selected days.

Overview

Report Parameters

Report Components

MSC Handover Graph

This graph shows the handover performance of a MSC for inter-cell intra-MSC handover and incoming and outgoing inter-MSC handover.

Overview

Report Parameters

Report Components

MSC Handover Report

This report shows handover performance at the MSC level for either all MSCs in a region or all MSCs in the network during a selected time period. The report shows intra-MSC handover attempts and failures and incoming and outgoing inter-MSC handover attempts and failures.

Overview

Report Parameters

Report Components

MSC Paging Graph

This graph shows the performance of the paging function for the MSC

Overview

Report Parameters

Report Components

MSC Switched Traffic Graph

This graph shows the key traffic performance statistics for an MSC specifically the total switched traffic and total failed calls. Total switched traffic must be calculated by summing traffic from the appropriate traffic categories.

Overview

Report Parameters

Report Components

MSC Switched Traffic Report Individual TT

This report shows key switched traffic statistics for a single MSC or all MSCs in a region or all MSCs in the network during a selected time period. The report shows attempts, calls, failures, %failures, answered, % answered and traffic for all traffic types.

Overview

Report Parameters

Report Components

MSC Switched Traffic Report Total Switched

This report shows key switched traffic statistics for a single MSC or all MSCs in a region or all MSCs in the network during a selected time period. The report shows the total switched traffic calls, failures % failures, answered, %answered and traffic.

Overview

Report Parameters

Report Components

MSC Traffic Dispersion Report

For each MSC this report shows calls, answered calls and traffic to each destination recorded by the MSC.

Overview

Report Parameters

Report Components

Processor Load Graph

This graph shows the performance of a support processor associated with a node against time

Overview

Report Parameters

Report Components

Route Congestion Graph

This graph shows the congestion on a selected route

Overview

Report Parameters

Report Components

Route Exhaustion Report

This report shows all routes that will reach exhaustion in the specified forecast. The report shows carried traffic, % congestion, % utilisation, grade of service and lost traffic in the most recent actual busy hour and then the selected dimensioning parameter, the critical traffic, the sample size, correlation coefficient, traffic growth and exhaustion date. The report is always generated with weekly busy hour values. The user defines the length of forecast in days and the design GOS as runtime parameters, and has the option to include or exclude exhausted routes.

Overview

Report Parameters

Report Components

Route Interface Offered Traffic Graph

This chart shows the trend in the principal route interface parameters: busy hour traffic, 3-DAV and 5-DAV traffic

Overview

Report Parameters

Report Components

Route Interface Traffic Forecast Graph

This chart allows the user to plot the weekly trend of either the carried or offered traffic for one of the three following dimensioning parameters: the busy hour traffic; 3-day average traffic; or, the 5-day average traffic. It also plots a regression of the selected dimensioning parameter extrapolated over a user-defined forecast period.

Overview

Report Parameters

Report Components

Route Low Utilisation Report

This report shows all routes that will remain consistently under utilised in the forecast period i.e. start off with low utilisation and finish with low utilisation. The report shows carried traffic, % congestion, % utilisation, grade of service and lost traffic in the most recent actual busy hour and then the selected dimensioning parameter, the critical traffic, the sample size, correlation coefficient and current and final utilisation. The report is always generated with weekly busy hour values. The report can be filtered on the maximum current utilisation and forecast utilisation; these parameters mandatory and default to 25%. The user defines the length of forecast in days and the design GOS as runtime parameters.

Overview

Report Parameters

Report Components

Route Required Circuits Report

This report shows the forecast circuit requirements for a set of routes for three different forecast periods. The forecast can be dimensioned using Weekly BH, 3-DAV or 5-DAV values of carried or offered traffic. For all selected routes, the report shows the sample size, the correlation coefficient of the forecast, the actual and required number of circuits and the selected dimensioning parameter in the latest busy hour and then the required circuits and forecast traffic at periods of N1, N2 and N3 days ahead where N1, N2 and N3 are configurable but default to 60, 90 and 120. The report is always generated with weekly busy hour values.

Overview

Report Parameters

Report Components

Route Traffic Graph

This graph shows the traffic profile for a selected route.

Overview

Report Parameters

Report Components

Route Traffic Report

This report shows key route traffic statistics for either all routes or all routes in a specified region or all routes from a specified MSC or all routes of a certain type during a selected time period.

Overview

Report Parameters

Report Components

Route Utilisation Graph

This graph shows the trend in utilisation of a route: traffic (offered and carried), % utilisation and calculated GOS.

Overview

Report Parameters

Report Components

Signalling Linkset Exhaustion Report

This report shows all linksets that will reach exhaustion in the specified forecast. The report is always generated with weekly busy hour values. The user has the option to set the following run-time parameters: Nominal Maximum Traffic - Default value 0.4, Maximum In-Failure Traffic - Default value 0.8, Default Links In-Failure - Default value 1.

Overview

Report Parameters

Report Components

SS7 Link Availability Graph

This graph shows the link availability for a selected SS7 link

Overview

Report Parameters

Report Components

SS7 Linkset Availability Graph Link KPIs

This graph shows the linkset availability of the constituent links for a selected SS7 linkset.

Overview

Report Parameters

Report Components

SS7 Linkset Availability Graph Linkset KPIs

This graph shows the linkset availability for a selected SS7 linkset.

Overview

Report Parameters

Report Components

SS7 Linkset Utilisation Graph

This graph shows the linkset transmission and reception utilisation for a selected SS7 link.

Overview

Report Parameters

Report Components

SS7 Linkset Utilisation Report RX

This report shows the utilisation of a set of linksets through the traffic received on their constituent links.

Overview

Report Parameters

Report Components

SS7 Linkset Utilisation Report TX

This report shows the utilisation of a set of linksets through the traffic transmitted on their constituent links.

Overview

Report Parameters

Report Components