Flexi WCDMA BTS Commissioning_RAS06For public use – IPR applies
I-HSPA Commissioning
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Nokia Siemens Networks Academy
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I-HSPA Commissioning
After completing this module, the participant will be able to:
Theory:
List the generic steps when manually commissioning a Flexi WCDMA BTS
Recognize the different types of Flexi Transport sub-modules by name and functions
Theory / Practical:
List the hardware and software requirements for the Flexi WCDMA BTS Element Manager for Local/Remote usage
Configure the personal computer used for local commissioning
Configure hardware settings, transmission interfaces and synchronization settings
Configure ATM settings including Virtual Paths, Virtual Channels and ATM Traffic Descriptors
Configure IP and DCN settings for Remote Access and Management
Describe the overview of Remote Management operation/administration of the Flexi WCDMA BTS
Inspect and check BTS Iub terminations
Inspect and check IP and DCN settings for Remote Access and Management
Inspect, check and test the Flexi WCDMA BTS commissioned configuration and status using the Nokia WCDMA BTS Element Manager
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Flexi WCDMA BTS Commissioning
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Computer Settings.
192.168.255.129 (TRS)
If TRS cannot be Pinged BTS Manager will NOT Work.
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Task Selection View
Connect
Task selection view is the starting point when Element Manager is opened
Each tab contains one task
Connect
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Task Selection View
Create Commissioning File
Press Create
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Task Selection View
Create Commissioning File
BTS Site
Creates both Commissioning xml files for BTS and FTM then creates a ZIP file ready for downloading to WBTS
BTS Only
Creates Commissioning xml file for BTS ready for downloading to BTS only
TRS Only
Creates Commissioning xml file for TRS ready for downloading to TRS only (TRS is the FTM)
Commissioning File
Allows the User to use a existing Commissioning File as a template
Press Next
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Task Selection View
Create Commissioning File
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Task Selection View
Create Commissioning File
This example
Press next
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Task Selection View
Create Commissioning File
Save File to local PC when finished
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Snapshot opening
You can use a snapshot file for troubleshooting purposes.
The snapshot file contains the current status of elements and Nokia WCDMA BTS Site Manager for example :
Used HW configuration.
HW and SW version information.
For more information on saving a snapshot file, see the Nokia Flexi WDCMA Base Station Alarms and Troubleshooting document.
User must select current location of the Snapshot file (Look In User the browse button on the left hand side)
Select the correct Snapshot File to be opened (WBTS Software Versions WN4.0 and above only)
Press Open
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Snapshot opening
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Snapshot opening
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Task Selection View
Shows all BTS Site Manager versions available on Local PC
Manager Versions can be found in:
C:\Program Files\Nokia Managers\NodeManagers
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UI parts
Main view
Nokia bar
View Bar
Alarm view
Status Bar
Title bar
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Commissioning
Flexi WCDMA BTS Not Commissioned.
BTS will only be in this state when first installed from new (Commissioning file will be read from flash memory once WBTS has been commissioned).
TRS Not Commissioned.
If TRS has been recovered then TRS will be in this state (Factory settings can be imposed form FTM HTTP Server) or when first installed from new.
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Commissioning Wizard View
Manual Commissioning
If no commissioning file is available, Nokia Flexi WCDMA BTS site has to be commissioned manually.
The Flexi WCDMA BTS and/or Flexi Transport sub-module (TRS) are commissioned with the Commissioning wizard in Nokia WCDMA BTS Site Manager. Commissioning can be started when the modules are in 'Initialised' state.
The wizard features Back, Next, Cancel and Help buttons for navigating. The Next button confirms the entered parameters and brings up the following page in each commissioning line. The Back button reverses to the previous page in the wizard. The Cancel button cancels all the entered parameters and closes the wizard. The Help button displays a context sensitive help topic for each page.
Template and Planned commissioning
Planned commissioning provides an option to commission network elements by loading to the Flexi WCDMA BTS and/or Flexi Transport sub-module a commissioning file that has been specifically made for the BTS site.
All parameters needed to configure the BTS site are determined at the network planning stage. It is essential that the input values match the expected values in the network plan.
Reconfiguration commissioning
Reconfiguration commissioning provides an option to commission already commissioned network elements. The reconfiguration can be used when a new configuration can solve problems or when a new configuration can release HW resources for another site and/or make an element to function more efficiently.
During the reconfiguration, the site remains operational up until the mandatory site reset at the end of the commissioning.
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Commissioning
Boxes with yellow headers are mandatory parameters and user will not be able to proceed until all boxes have been filled.
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Commissioning – Site Properties
Address Via DHCP
Used for Dynamic Host Configuration Protocol (Optional)
To define the External Equipment IP Addresses via DHCP, select the appropriate check boxes and enter the IP addresses.
To define Other IP Addresses via DHCP, select the DHCP configuration types, and enter the identifiers and IP addresses.
Click the OK button to save the changes and return to the Commissioning - Site Properties page.
NTP_Servers
Only one NTP (Network Time Protocol) server IP address is required.
Additional NTP servers can be used to protect real-time updates, for example, if one NTP server is temporarily out of service.
Clicking the NTP Servers button opens the NTP Servers dialog box, where you can configure more NTP IP addresses.
LDAP server IP address and Port (optional)
The LDAP server is used to authenticate remote users from the LDAP server via the DCN network.
If the LDAP server address is not configured, users are authenticated using the local super user account information (user name/password) that can be defined during commissioning in the Commissioning - Authentication Settings page.
The default LDAP port is 389.
Once all mandatory parameters have been filled in Press Next
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I-HSPA SUPPORT IN WN 4.0
I-HSPA control plane IP address has to be in the site subnetwork (TRS IP & netmask)
The BTS can be commissioned to operate either in standard mode or in the I-HSPA mode.
To commission the BTS in I-HSPA mode , check the 'FHA in Use' checkbox & type in the IP Address of the FHA unit. The A2EA field will be automatically disabled.
In I-HSPA mode, NBAP, Signalling and UP termination points are not available.
It is possible to configure the transmission either over the Ethernet ports of the FHA unit (IP over Ethernet), or IP over the PDH interfaces of the FTxx units (IP over AAL5 over ATM).
’IP over AAL5 over ATM’ transmission is supported on FTXX.
For IP over Ethernet (FHA unit), the ‘ATM Iu-PS / Iur in Use’ checkbox has to be unchecked. For the IP over ATM over PDH, please check this box .
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Commissioning – Physical Layer Configuration
Physical Layer Configuration
You can select all interfaces in a unit by clicking the Select All button. Or, you can select multiple interfaces by selecting the first interface, holding down the Shift or CTRL key and selecting the other interfaces. You can then define the needed settings for the selected interfaces simultaneously.
Select the check box in the In Use column to take the interface in use.
Note that interfaces can be used according to licences. Interfaces 1 and 2 can be used without a licence but you need to have a valid licence to activate additional interfaces. For more information on licences, see the Licence Management document in the Nokia WCDMA RAN System Documentation.
If the interface type is E1, select the check box in the CRC On column if the Cyclic Redundancy Check is to be used.
If the interface type is T1, select the frame type from the list in the Frame Type column and the line build-out value from the list in the Lbo column.
Define the synchronisation timing source by selecting the Primary or Secondary option from the list in the Synchronisation column.
You can define one primary timing source and one secondary timing source. Defining the synchronisation timing source is mandatory only if interfaces are selected to be in use.
If you want to include the interface in an IMA group, select the IMA group to which the interface belongs from the list in the IMA Group column.
Inverse Multiplexing for ATM (IMA) is a technique by which ATM traffic can be distributed between several lower bandwidth PDH links and then recombined again at the far end. The IMA group has to be created at both ends of the physical link.
You need to have a valid IMA licence to activate the IMA functionality.
When the IMA group is created, its properties are set to the default values. If you want to manage IMA groups, click the Advanced IMA Settings button. The Advanced IMA Settings dialog box opens.
Advanced IMA Settings
Selected Links
In Use
The IMA Group ID is generated automatically when a new group is created.
Click the OK button to save the changes and return to the Commissioning - Physical Layer Configuration page.
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Ethernet Interface Settings
1. Click Configuration → TRS Configuration → Physical Interfaces.
2. Check the In Use box to select the Ethernet Interface.
6. Click Send to save changes.
3. Select Accepted frame type as Plain or VLAN.
4. Enter a valid VLAN ID for VLAN frame type.
5. Configure the required Ethernet BW.
Ethernet interface properties:
- In Use State
- Accepted Frame type
In Use State
Presently only one Ethernet interface can be activated for usage, even if two or three Ethernet interfaces are physically present.
By default all Ethernet interfaces are inactive.
Accepted Frame Type
Plain & VLAN frame types are supported. This parameter sets the frame type for the send and received frames. Default frame type is plain
VLAN ID
VLAN ID configuration is only required if VLAN is enabled. Supported VLAN value range is 2 to 4094. Reserved values (1 and 4095) and VLAN ID 0 is not supported.
Ethernet BW
This is the egress shaping function on each of the Ethernet network interfaces. Configurable from 0.5Mbps to maximum bandwidth in steps of 0.5Mbps. Default value is 100Mbps.
Max Capacity (Show Parameter)
Max achievable data rates on Fast Ethernet and Gigabit Ethernet interfaces are 100Mbps and 1000Mbps respectively.
RX power in dBm (Show Parameter)
It displays the measured value of received optical power (applicable only for the optical interface).
Ethernet Interface Propeties Modification: The below ethernet parameters can be modified once they are configured.
-Ethernet interfaces.
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Commissioning – Traffic Descriptors
Traffic Descriptors page you can create traffic descriptors that specify capacities and types for ATM based connections between the BTS and RNC.
This page is not available if the Flexi HSPA Adapter (I-HSPA Adapter) is selected to be in use but the ATM Iu-PS/Iur is not in use
If the I-HSPA Adapter is not in use, you need to define at least four traffic descriptors:
one for the BTS capacity on the VP level,
one for the IUB signalling terminations,
one for the AAL2 user path and one for the DCN interface.
If the I-HSPA Adapter is in use and the ATM Iu-PS/Iur is in use, you need to define at least five traffic descriptors:
one traffic descriptor for each Iu-PS/Iur termination (Iu-PS Control Plane, Iu-PS User Plane, Iur Control Plane, and Iur User Plane),
one for the DCN interface.
In total, you can create 32 traffic descriptors: a maximum of 16 CBR traffic descriptors and a maximum of 16 UBR/UBR+ traffic descriptors.
If you want to enable the UBR+ feature, select the UBR+ Service Category check box.
Note
You need to have a valid licence before the UBR+ feature can be activated. For more information on licences, see the Licence Management document in the Nokia WCDMA RAN System Document and the New Features document in the BTS SW release documentation.
Click the New Traffic Descriptor button.
Enter the name of the traffic descriptor in the Name field.
Select the conformance definition of the ATM service category from the Conformance Definition list.
Enter the peak cell rate in the Peak Cell Rate (PCR) field.
If the UBR+ is enabled, enter the minimum desired cell rate in the Min. Desired Cell Rate field and the UBR share in the UBR Share field.
Click the New Traffic Descriptor button to save the changes and create another traffic descriptor.
Repeat the procedure for all needed traffic descriptors.
If you want to delete an existing traffic descriptor or cancel the creation of a new traffic descriptor, click the Delete Traffic Descriptor button.
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VCC Bundle and AAL2 CAC in the uplink
With the introduction of the AAL2 CAC in VCC bundle mode, Flexi WCDMA BTS allows the overbooking of individual ATM VCCs in a controlled manner, especially for NRT DCH traffic in UBR+ VCCs. If the user sets the MDCR of the UBR+ connections to zero and the sum of RTDCH CBR VCC to the physical bandwidth, the network elements even allow to share the entire physical capacity of the ATM interface (minus some bandwidth reservation for control and management plane traffic).
With the introduction of this feature, Flexi WCDMA BTS provides two modes of AAL2 CAC:
VCC mode: AAL2 CAC takes into account the capacity provided by individual ATM VCC (depending on CBR/UBR+ service category).
VCC bundle mode: AAL2 CAC takes the capacity provided by several ATM VCCs on the same ATM IF into account, i.e. the CAC function uses the physical layer bandwidth minus the amount of guaranteed bandwidth reserved for the control and management plane connections. Control and management plane connections are those dedicated to the transport of the AAL2 signaling, the NBAP control protocol and the DNC management channels.
Create a traffic descriptor with the name VCC_BUNDLE from Configuration -> TRS Configuration -> Traffic Descriptors
Notes
The exact spelling of the traffic descriptor name must be VCC_BUNDLE. It is case-sensitive.
With the presence of TRDE with the name VCC_BUNDLE, Flexi WCDMA BTS operates in the VCC Bundle CAC mode, otherwise it operates in the normal VCC CAC mode. It is not necessary to use this special traffic descriptor VCC_BUNDLE in any termination. At any point in time, the entire FTM unit operates in only one of the AAL2 uplink CAC modes.
This VCC bundle feature brings changes only to the AAL2 CAC functionality of Flexi WCDMA BTS. It does not bring any changes to the ATM Traffic scheduling and shaping.
It is advised to reset Flexi WCDMA BTS whenever there is an AAL2 CAC mode transition between the VCC Mode and VCC Bundle Mode.
To make use of the VCC Bundle mode, it is advised to configure Iub Terminations with UBR+ (rather than with UBR) with a valid licence.
Disable the feature: delete string “VCC_BUNDLE” in TRDE user label
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RAN1095 UBR+ for Iub User Plane
UBR+ VCC is defined by its Minimum Defined Cell Rate (MDCR) and Peak Cell Rate (PCR). User traffic is able to utilize the free capacity up to the PCR value, and a guarantee of MDCR is given in order to support a minimum throughput in case of high Iub load.
With Path Selection, one UBR+ VCC can be used for NRT-DCH traffic, and another UBR+ VCC can be used for HSDPA traffic. It is recommended to keep the real time traffic in CBR VCC to maintain the QoS. In this kind of configuration, UBR+ VCCs can share the free capacity up to the defined PCR. Capacity of MDCR is guaranteed also in case of high Iub load.
Since the NRT traffic carried over the DCH has more stringent Iub delay requirements than HSPA, priorities need to be defined so that it is delivered with lower delay and delay variation. This is supported with UBR+ parameters that are operator configurable:
- MDCR value for NRT-DCH should be set high enough for the guaranteed throughput.
- Among multiple UBR+ VCCs, priority can be assigned by parameters settings. Division of excess bandwidth between NRT-DCH VCC and HSDPA VCC should be set so that NRT-DCH gets higher priority over HSDPA.
“SHARE” – parameter in Commissioning settings:
UBR+ Traffic Descriptor has also parameter share (0…1000). With this parameter you can define the percentage of traffic load share between UBR+ connections. I.e. priority of VC connections in case of congestion.
Example:
VC AAL2UP (NRT) TRDE-1: PCR 10 000, MDCR 5000, SHARE 200
VC AAL2UP (HSPA) TRDE-2: PCR 10 000, MDCR 5000, SHARE 100
SUM (SHARE) = 300
-> in case of congestion, AAL2UP for NRT
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RAN1095 UBR+ for Iub User Plane
Example:
VC AAL2UP (NRT) TRDE-1: PCR 10 000, MDCR 5000, SHARE 200
VC AAL2UP (HSPA) TRDE-2: PCR 10 000,…