Sgmb Bearers
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Landslide Performance Test System – Release 24.3 September 2024

Bearers BMSC

In eMBMS Node test case, as “BMSC” emulator mode is selected, the Bearers tab in SGmb interface page provides BMSC node MBMS bearer configuration (for Control plane) between BM-SC and MBMS GW, it’s based on Diameter protocol and supports MBMS Session Start/Update/Stop etc procedure.

SGmb interface tab for BMSC is only visible in “BMSC” emulator mode.

Service Areas
 

 

 

eMBMS Version (36.300)

Use the drop-down list to select the SGMB interface version to be used by the BMSC node. The applicable parameters are enabled depending on your selection.

Options: 9.4.0/Jun2010, 11.5.0/Mar2013 (default)

Tcl Parameter:  BmscSgmbVersion

Mobile Country Code

Mobile Network Code

Service ID

  

 

Configure the location and Serving Network to which the UE (mobile subscriber) is attached.

Mobile Country Code

 

Defines the mobile subscriber's country of domicile.

Range: 000 — 999 (leading zeros are retained)

Default: 000

Tcl Parameter: BmscMcc

Mobile Network Code

Defines the mobile subscriber's home PLMN (Public Land Mobile Network)

Range: 000 — 999 (leading zeros are retained)

Default: 000

Tcl Parameter: BmscMnc

Service ID

Identifies the type of service used by the UE (mobile subscriber).

Range: 1 - 16777215

Default: 1

Tcl Parameter: BmscServiceId

 

MBMS Session Duration

Indicates the estimated session duration (MBMS Service data transmission).

Range: 1 - 1641600

Default: 1

Tcl Parameter: BmscSessDuration

MBMS Session Identifier

Together with TMGI to identifies a transmission of a specific MBMS session.

Range: 1 - 255

Default: 1

Tcl Parameter: BmscSessId

Time to Data Transfer

Indicates the expected time between reception of the MBMS Session Start (RAR (Start) command) or the MBMS Session Update (RAR (Update) command) and the commencement of the MBMS Data flow.

NOTE: This parameter is not used when Content Type = WebDAV. When Content type = WebDav, data traffic is started on content server (emulated by IP App node), when to start transmitting downstream data from BMSC is determined by the configuration on IP App Node and BMSC FLUTE "Send delay".  

 

Range: 1 - 256

Default: 1

Tcl Parameter: BmscTimeToDataTransfer

MBMS Session Repetition Number

Contains the session identity repetition number of the MBMS transmission session on the SGmb interface.

Range: 0 - 255

Default: 0

Tcl Parameter: BmscSessRepNum

MBMS User Data Mode Indication

Indicates the mode that BM-SC send user plane data (Unicast or Multicast mode).

Range: Unicast or Multicast

Default: Unicast

Tcl Parameter: BmscUserDataMode

CN IP Multicast Distribution

Indicates if IP multicast distribution to UTRAN should be used for the MBMS user plane data.

Range: IP-MULTICAST  or NO- IP-MULTICAST  

Default: IP-MULTICAST

Tcl Parameter: BmscMulticastDist

MBMS Flow Identifier

Enable to enter Number of Flow and Starting Flow Identifier. Provides the ability to have a Fixed TMGI and an incrementing BMSC Flow identifier.

Tcl Parameter: BmscFlowIdEn

Number of Flow

Enter Number of Flow (from 1 to 255).

Range: 1 - 255

Default: 1

Tcl Parameter: BmscNumFlow

Starting Flow Identifier

Represents a location dependent subflow of an MBMS bearer service.

Range: 1 - 65535

Default: 1

Tcl Parameter: BmscFlowId

Called Station ID

Contains the Access Point Name (APN) for which the MBMS bearer service is defined.

Tcl Parameter: BmscCalledStationId

Multicast IP Address Type

Indicates the IP address type of Multicast & Multicast Source IP Address.

Range: IPV4, IPV6

Default: IPV4

Tcl Parameter: BmscMulticastIpType

Multicast IP Address

Indicates the IP address based on which the BM-SC deliver MBMS data to MBMS GW.

Tcl Parameter:BmscMulticastV4Ip / BmscMulticastV6Ip

Multicast Source IP Address

Source IP Address (BMSC) for MBMS data delivery.

Tcl Parameter: BmscMulticastV4SrcIp / BmscMulticastV6SrcIp

MBMS Access Indicator

Indicates whether the MBMS bearer service will be delivered in UTRAN-only, E-UTRAN-only or both coverage areas.

Range: UTRAN-only, E-UTRAN-only or both

Default: E-UTRAN-only

Tcl Parameter: BmscAccessIndicator

MBMS GW UDP Port Indicator

Indicates that the payload related to the MBMS service is required to be delivered in the MBMS UDP Port assigned by the MBMS-GW.

Range: true or false

Default: false

Tcl Parameter: BmscUdpPortIndEn

MBMS Data Transfer Start

Indicates the time in seconds for the radio resources set up relative to 00:00:00 on 1 January 1900 (calculated as continuous time without leap seconds and traceable to a common time reference).

Tcl Parameter: BmscMbmsDataTransferStartEn / BmscMbmsDataTransferStartTime  

MBMS Data Transfer Stop

Indicates the time in seconds for the release of resources relative to 00:00:00 on 1 January 1900 (calculated as continuous time without leap seconds and traceable to a common time reference).

Tcl Parameter: BmscMbmsDataTransferStopEn  / BmscMbmsDataTransferStopTime

Service Areas

Starting Serving Area

Service Area identifies the location of the serving network to which the UE (mobile subscriber) is attached.. Starting Service Area and Number of Service Areas are combined used to configure service area list for MBMS bearers which is included in MBMS Session Start Request message. It will auto increase if multiple service areas or multiple MBMS bearers need to configure.

Range: 1 — 65535 (0 is skipped)

Default: 1

Tcl Parameter: BmscStartingServiceArea
Number of Service Areas

Identifies the number of service areas to be configured for a MBMS bearer in Session Start Request message

Range: 1 — 256

Default: 1

Tcl Parameter: BmscNumServiceArea
Bearer Update Delay   Number of New Service Areas     Starting New Service Areas  

They are not available as “eMBMS-GW” emulator mode is selected.

Bearer Update Delay: The number of seconds to wait, after a MBMS Bearer connection is established, before sending the update request.

Range: 1 — 65535

Default: 1

Tcl Parameter: BmscBearerUpdateDelayEn

Tcl Parameter: BmscBearerUpdateDelay

Starting New Service Area: Service Area indicates location of the new serving network to which the UE (mobile subscriber) attaches after Bearer Update Delay expires. Available only when you select Bearer Update Delay.Starting Service Area and Number of New Service Areas are combined used to configure updated service area list for MBMS bearers which is included in MBMS Session Update Request message. It will auto increase if multiple service areas or multiple MBMS bearers need to configure.

Range: 1 — 65535 (0 is skipped)

Default: 1

The MBMS Session Update message is sent after the time specified in the Bearer Update Delay expires.

Tcl Parameter: BmscStartingNewServiceArea

Number of New Service Areas: Identifies the number of service areas to be configured for a MBMS bearer in MBMS Session Update Request message

Range: 1 — 256

Default: 1

Tcl Parameter: BmscNumNewServiceArea
Manually Assign Service Areas to Bearer Groups

Select to enable the table below to manually enter up to 100 Bearer Groups. Starting Service Area, Number of Service Areas, Starting New Service Area and Number of New Service Areas are all Disabled.

Tcl Parameter: BmscBearerGroupsEn
Number of Bearer Groups

Enabled when Manually Assign Service Areas to Bearer Groups is selected. Enter up to 100 Bearer Groups. Remaining Bearers at the end of the pane will display the remaining bearers left to be configured.

Enter Number of Bearer Groups.

Tcl Parameter: BmscBearerGroups

They are not available when “eMBMS-GW” emulator mode is selected.

Group #

Enter Group number. Index to Table

Range: 1 — 100

# of Bearers

Defines the Number of Bearers in the Group. The total number of Bearers from all the rows must equal the "Number of MBMS Bearers" on the eMBMS Emulator Configuration - Number of MBMS Bearers.

Default: 1

Tcl Parameter: BmscNumBearers_1

Range

Identifies the range of the Bearer Group.

Service Area(s)

Service Area identifies the location of the serving network to which the UE (mobile subscriber) is attached.

Range: Enter a single integer or comma separated , 1 — 65535 (0 is skipped)

Default: 1

Tcl Parameter: BmscServiceAreas_1

New Service Area (s)

New Service Area is required when Bearer Update Delay (s) is selected. Indicates location of the new serving network to which the UE (mobile subscriber) attaches after Bearer Update Delay expires,

Range:  Enter a single integer or comma separated , 1 — 65535  (0 is skipped)

Default: 2,3,4

Tcl Parameter: BmscNewServiceAreas_1

 

 

 

Bearer Quality of Service

QoS measurements applies to eMBMS session loads and user service bandwidths to control network quality-of-service for sessions of multicast and broadcast MBMS bearer services.

Summary/Individual

For eMBMS, Individual selection is not available. You can define one QOS for all bearers. Select Summary to use the same QOS configuration for all bearers in the Default tab

Class Identifier

The Class ID in the Bearer QOS applies to the Uplink (UL) and Downlink (DL) IP flows. LTE test cases provide you with the ability to configure various QCI.

You can choose to use the same QoS Class ID for all IP contexts or you can define different Class IDs for each context.

Range: 0 — 255

TIP: To ensure that the value in the Class Identifier takes effect, either press the Tab key or click on another field.

Tcl Parameter: BmscQosClassId_1

 

ARP Priority Level

Use the ARP (Priority of Allocation and Retention) to determine the relative priority level during admission and congestion processes.

The primary purpose of ARP is to decide whether a bearer establishment/modification request is accepted or needs to be rejected in case of resource limitations (typically available radio capacity in case of GBR bearers). In addition, the ARP is also used (e.g. by the eNodeB) to decide which bearer(s) to drop during exceptional resource limitations (e.g. at handover). Once successfully established, a bearer's ARP does not have any impact on the bearer level packet forwarding treatment (e.g. scheduling and rate control).

 

Range: 1 - 15

Default: 1

Tcl Parameter: BmscQosArpValue_1

 

Set Bit Rates

The Set Bit Rates checkbox is available only when Class Identifier value is 0 or between 10 and 255.

Range : 0 to 255

Select Set Bit Rates to enter the Maximum Bit Rates and Guaranteed Bit Rates values for UL and DL traffic.

Tcl Parameter: BmscQosBrEn_1

 

Pre-emption Capability

Selecting this checkbox indicates that the bearer may preempt other bearers with a lower ARP value when resource limitations are reached.

Tcl Parameter: BmscQosArpPreemptCapEn_1

NOTE: The Pre-emption Capability and Vulnerability are available regardless of GTPv2 version.

Pre-emption Vulnerability

Selecting indicates that a bearer is vulnerable to being dropped when resource limitations have been reached and there is a bearer with a higher ARP value in service.

Tcl Parameter: BmscQosArpPreemptVulnEn_1

 

Maximum Bit Rates (bits/sec) and

Guaranteed Bit Rates (bits/sec)

Define the IP flow Maximum Bit Rates (bits/sec) and Guaranteed Bit Rates (bits/sec) for UL and DL traffic.

Range: 0 - 10000000000

Default: 1

NOTES:

  • when Class Identifier is 5,6,7,8 and 9, the Maximum Bit Rates and Guaranteed Bit Rates parameters for UL and DL are not available

  • When Class Identifier is 1, 2, 3, or 4 the Maximum Bit Rates and Guaranteed Bit Rates parameters for UL and DL are available.

  • When Class identifier is 0, or between 10 and 255, the Maximum Bit Rates and Guaranteed Bit Rates parameters for UL and DL are available only when you select the Set Bit Rate checkbox.

 

Tcl Parameters:

BmscQosMaxUplink_1 BmscQosGuarUplink_1
BmscQosMaxDownlink_1 BmscQosGuarDownlink_1

 

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