nokia wcdma bts commissioning

1 © 2005 Nokia CTXX6072_5 WBTS COM.ppt/2006/02/04/RSB

Nokia WCDMA BTS Commissioning


WBTS COMMISSIONING WN3.0


Main View


Tool Bar


Text Size


Properties


Events


Equipment View


Master WAM / Active Clock Unit


Status Bar

RNC AXC CONFIGURED

DCN CHANNEL NOT CONNECTED

ELEMENT MANAGER CONNECTED


Alarm View


Alarm History


Local Cell Properties


SOFTWARE VERSIONS


SW VERSIONS (Software)

Current running software version


UPDATE SW VERSIONS (Software)



SELECT OPEN

Activate now will cause BTS to restart automatically and activate software when down is finished. If box left unchecked then new software will be stored until activated at a later date. (activation later completed by downloading software but is much faster as software is allready stored in WAM)


Commissioning Wizard


Commissioning Wizard Template Commissioning


Commissioning Wizard Planned Commissioning


XML Document

EXAMPLE OF A

SITE CONFIG FILE

Commissioning Wizard File Import


Commissioning Wizard Manual Commissioning


Commissioning Wizard Reconfiguration Commissioning


Select local time zone.

General Settings


BTS IP Address:• Master WAM Public IP address, unique for BTS.• BTS is configured to answer to the requests, that are sent to this address• AXU needs to know this, IP address sent via InvARPRNC IP Address:•RNC AA port IP address•Static route set up between AXC and RNC, AXC forwards request from RNC to Master WAM.

Site Settings

BTS Id, must match Bts Id in RNC


Select CEC or ROC

Configuration Settings

Type configuration


Noise Kit option for reducing noise is selected with Supreme and Optima Compact Outdoor cabinets too.

BTS SW is not using this.

ARIO is not a configuration concept. The information here is only for BTS Mgr internal usage.

IBBU type defines the integrated battery backup type.

Configuration Settings


Number of TRXs in LCG may not exceed 6.

When Local Cell Grouping is not in use, the default is that all LCRs and WSPs are in the same group.

Local Cell Group Settings


Also: • Summed Used• Summed and RX Used• Only TX used

Local Cell Resources Settings


RNC Settings


RNC Settings for Non Nokia RNC


RX cabling Settings


RX cabling Settings (ARIO support)


WIC is not cabled in Metrosite50 and TripleMode cabinets.

TX cabling Settings


Carrier InformationCarriers are used in in test-dedicated state and with test models.

The nominal frequencies of the RF input signal are calculated with the formula: UARFCN * 0.2 (MHz)

1900 band: with the additional channels the formula is:UARFCN * 0.2 (MHz) + 1850.1

850 band: with the additional channels (see next slide), the formula is:UARFCN * 0.2 (MHz) + 670.1


VCC = Virtual Channel ConnectionPCR = Peak Cell RateTP = Termination PointAAL2 = AAL2 Signaling peak cell rateA2EA = AAL2 End point AddressC-NBAP = Common NBAPD-NBAP = Dedicated NBAPNBAP = Node B Application Protocol

ATM Settings

True = WAM is used for trafficFalse = WAM is not used for traffic and informed to TCOM as “not-available”.


ATM Settings The format of the A2EA: is 0 to F in hexadecimal. The length of the A2EA is automatically restricted to 40 digits (20 bytes).

The A2EA values have to be different for each signalling link towards WAM

and RNC. AAL2 Endpoint Address is created in RNC COCO and in BTS

Commissioning Wizard automatically.

Structure of A2EA between WAM and AXC in RN 1.5 level:

Example:

49 +5 DIGITS FOR BTS_ID +00+WAM NUMBER . With

BTS_ID=1, WAM2:

4900001001FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

Only possible to have one path

At RAN 1 path Id 1001 (WAM NUMBER X 1000+ Path)


ATM Settings The format of the A2EA: is 0 to F in hexadecimal. The length of the A2EA is automatically restricted to 40 digits (20 bytes).

The A2EA values have to be different for each signalling link towards WAM

and RNC. AAL2 Endpoint Address is created in RNC COCO and in BTS

Commissioning Wizard automatically.

Structure of A2EA between WAM and AXC in RN 04 level:

Example:

49 +5 DIGITS FOR BTS_ID +0+ WAM physical number + 0. With BTS_ID=1, WAM2:

4900001020FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

Path Id format Example:

('BTS_ID'=1, 'WAM_ID'=2, 'PATH_ID'=1).

('BTS_ID' x 1000) + ('WAM_ID' x 10) + (PATH_ID) =1X1000 + 2x10 + 1 = 1021


ATM Settings


WIA Settings

WIA (Wideband Integrated Antenna) is defined only with Metrosite cabinet.


MHA Settings


VSWR alarm detection is set for main branch only.

BTU Settings


Defines the loss of antenna feeder cable. This includes also the Diplexer loss

The delay factor of the antenna cable.

Multiplexer is a passive RF equipment forantenna sharing purposes in BTS co-siting.

Antenna Settings


RTT delay of BTS configuration formula (for 2100 frequency band):10

* antenna cable length * 2 + BTU (1 ns) + MHA (51 ns) + duplexer (30 ns) + triplexer (25 ns) 2.988 * velocity factor

Antenna Settings


ARIO: Antenna Settings

Defines the loss of antenna feeder cable. This includes also the Diplexer loss

The delay factor of the antenna cable.

AIRO RTT delay formula when fibre cable length given: fibre cable length

+ RTT delay of BTS configuration (see previous slide) 2.998 * 0.66

TX

+R R

X

WT

R

Con

sta

nt

Del

ayWTR

WOU

WRU

MH

A

Fe

ede

r C

ab

le

MH

A

Also WOU units will be listed.

Optical Fiber Cable

WOU


Intelligent Shutdown Settings

If “In use” and a intelligent shutdown specified EAC line starts to alarm, BTSOM generates a Mains break alarm. The alarms is generated when the power feeding is interrupted.

In case 6 lines are reserved, 3 is for Mains Break Alarms and the other 3 are for extra EAC alarms.

The time after the cell is starting to shut down itself.If value is 0, the corresponding cell is shut down immediately.


Door alarm is defined only for Supreme (WCCA and WINA).

EAC Input (Alarms) Settings


EAC Output (Controls) Settings

Initial States after reset: ON = current goes throughOFF = circuit is open


Intelligent Shutdown Settings

See next slide for EAC lines


EAC lines Automatically set by selecting intelligent shutdown

EAC Input (Alarms) Settings


Save the SCF (site configuration file)


Sending the SCF

Parameters are sent to BTS in SCF file (as xml format). BTSOM saves the file into flash.


Sending the SCF


COMMISSIONING REPORT


Test


WCDMA loop test: is intended to verify the operation of the signal path from each WAM to each WTR and back.

Figure below depicts one example of the operation of the WCDMA test loop on a general level

CDMA LOOP TEST

Iub

IFUIFU

AXU

IFU

WSC

CarrierInterFace

WAFWTR

WPA

WS

P

WS

P

WS

P

WS

P

WS

P

WS

P

WAM

DSC-BUS

T-bus RT-bus

RR-bus

ST-bus SR-bus

WAFWTR

WPA

WSM WAM

R-bus

WAFWTR

WPA

WAFWTR

WPAW

SP

WS

P

WS

P

WS

P

WS

P

WS

P

WAM

DSC-BUS

WAMWSM

WAFWTR

WPA

WAF

WPA

WS

P

WS

P

WS

P

WS

P

WS

P

WS

PWAM

DSC-BUS

WAMWSM

WTR


CDMA LOOP TESTSelect the units you want to test and the test duration for the single loop then push the Start button. If e.g. WSP6 is selected for the testing the corresponding sub rack’s WAM2 must be selected!

Optimized Variation In use

The maximum number of conducted elementary tests is rather huge and running all of them could be time-consuming.

This parameter can be used to optimize the variation of units in elementary tests, so not all combinations will conduct an elementary test. The amount of required elementary tests is optimized excluding variations, which would be excessive from required test coverage viewpoint. Passing over excessive variations will significantly reduce the time necessary to complete the test, especially if all units in BS must be included in the test.


CDMA LOOP TEST

When the test is completed you can see the test resultin the test result window and save the test report.


CDMA LOOP TEST


CDMA Loop Test ReportThe content of this file reflects the results of CDMA Loop Test


CDMA Loop Test Report


EAC TEST


IUB LINK STATES


FAST TUNE BTS CLOCK


MANUAL TUNE BTS CLOCK


Appendix 1

• BTS Performance monitoring


BTS Performance Monitoring

Performance Monitoring provides possibility to view BTS's performance measurements. In the Performance Monitoring view you can see performance data for optimising and troubleshooting element. After commissioning you can also check that the element is working.

Choose the BTS Performance Monitoring command on the View menu or click the button on the Toolbar to open the Performance Monitoring view.

When the view is opened, the performance data is read from the BTS if it has not been read already. The progress dialog displays progress of transferring the performance data. The Performance Monitoring view contains two tabs: Summary and Measurements.


Click the button to read the new data from the BTS. The button is enabled if there is new data

becomes available.

Viewing the summary information

Select the Summary tab.

Select the counter group from the Counter Group list.

Select the local cell from the Local Cells list.

If you selected the CQI measurement option, select the Measurement Time. Viewing the information by counters

Select the Measurements tab.

Select the counter from the list on the left.

Select the Show By: Counter option.

If you want to view the information as a graph, select the Graph option.

If you want to view the information as a table format, select the Table option.

Viewing the information by measurement times

Select the Measurements tab.

Select the Show By: Time option.

Select the time from the Time list



Choosing the View / BTS Performance Monitoring command or clicking the button in the Toolbar opens the Performance Monitoring view, where you can view BTS's performance measurements (see Monitoring BTS Performance). The view contains two tabs: Summary (selected as default) and Measurements.

The Summary tab shows summary information for the local cells in graphical mode.

Select the counter group from the Counter Group list: MAC-hs retransmission distribution, MAC-D PDUs or CQI measurement.

Select the local cell from the Local Cells list, which displays the local cells that have performance data. The first local cell is selected by default.

If there is new performance data available in the BTS, the button is enabled and you can read new data from the BTS by clicking the button



Distribution of MAC-hs Retransmissions for Local Cell <id>

A stacked area graph shows information of six counters. The colour indicates the area for each counter:

MAC_HS_PDU_RETR_DIST_CL_0 - no retransmissions

MAC_HS_PDU_RETR_DIST_CL_1 - 1 retransmission

MAC_HS_PDU_RETR_DIST_CL_2 - 2 retransmissions



MAC_HS_PDU_RETR_DIST_CL_5 - more than 4 retransmissions

The x-axis shows the measurement time (maximum 24 times). The date is shown on the right and left sides of the x-axis. The time format is localised.

The y-axis shows the number of retransmissions.



MAC-d Transport Block Success Ratio for Local Cell <id> A bar graph shows information of two counters: MAC_D_PDU_TOT - the total number of received blocks MAC_D_PDU_DROP_BTS_OWFL - the number of discarded blocks The x-axis shows the measurement time (maximum 24 times). The date is shown on the

right and left sides of the x-axis. The time format is localised. The y-axis shows the total number of the received blocks. Inside the bar is shown the

number of the discarded blocks.

Channel Quality Indicator (CQI) Distribution for Local Cell <id> A bar graph shows information of 32 counters: CQI value 0, CQI value 1, CQI value 2, …, CQI value 30 CQI Failed. Select the Measurement Time from the list that displays 24 measurement times. The

time format is localised. By default the bar graph shows the latest measurement information.

The x-axis shows the CQI Value from 0 to 30. The last bar shows the CQI Failed. The y-axis shows the number of CQI value



A counter group contains counters that logically belong together. The counter groups are as follows:

Distribution of MAC-hs retransmissions: Indicates the number of retransmissions needed to correctly deliver the MAC-hs PDUs between UE and BTS. This measurement is essential for the operator to be able to oversee that link adaptation and various power offsets work and interact properly.

MAC-d Transport Block Success Ratio: Indicates the number of MAC-d PDUs dropped because of overflow of the priority queue buffer. Also the total number of MAC-d PDUs received via HS-DSCH data frames is displayed. These counters are sum counters.

Channel Quality Indicator (CQI) distribution: Gives a picture of the radio conditions in the cell. Thus it is useful for coverage estimations and for other network planning related tasks.



Distribution of MAC-hs retransmissions

MAC_HS_PDU_RETR_DIST_CL_0 Number of correctly delivered MAC-hs PDUs that have been done without retransmission. When one MAC-hs PDU is

correctly delivered without retransmission and the ack has been received, the counter is incremented by one.

MAC_HS_PDU_RETR_DIST_CL_1 Number of MAC-hs PDUs retransmitted once. When one MAC-hs PDU is retransmitted once and the ack has been

received, the counter is incremented by one. MAC_HS_PDU_RETR_DIST_CL_2 Number of MAC-hs PDUs retransmitted twice. When one MAC-hs PDU is retransmitted twice and the ack has been

received, the counter is incremented by one.

MAC_HS_PDU_RETR_DIST_CL_3 Number of MAC-hs PDUs retransmitted three times. When one MAC-hs PDU is retransmitted three times and the ack

has been received, the counter is incremented by one. MAC_HS_PDU_RETR_DIST_CL_4 Number of MAC-hs PDUs retransmitted four times. When one MAC-hs PDU is retransmitted four times and the ack has

been received, the counter is incremented by one. MAC_HS_PDU_RETR_DIST_CL_5 Number of MAC-hs PDUs retransmitted more than four times. When one MAC-hs PDU is retransmitted more than four

times and the ack has been received, the counter is incremented by one.



MAC-d Transport Block Success Ratio

MAC_D_PDU_TOT Total number of received MAC-d PDUs.

MAC_D_PDU_DROP_BTS_OWFL Number of dropped MAC-d PDUs due to BTS buffer overflow.

Channel Quality Indicator (CQI) distribution

CQI Value 0 Number of reported CQI Value 0. The BTS increments the counter by one when CQI value 0 is received on HS-DPCCH. CQI Value 1 Number of reported CQI Value 1. The BTS increments the counter by one when CQI value 1 is received on HS-DPCCH. CQI Value 2 Number of reported CQI Value 2. The BTS increments the counter by one when CQI value 2 is received on HS-DPCCH. CQI Value 3 Number of reported CQI Value 3. The BTS increments the counter by one when CQI value 3 is received on HS-DPCCH. .. CQI Value 30 Number of reported CQI Value 30. The BTS increments the counter by one when CQI value 30 is received on HS-DPCCH. CQI Failed Number of CQI decode failure. The BTS increments the counter when the failed CQI decoding occurs



Choosing the View | BTS Performance Monitoring command or clicking the button in the Toolbar opens the Performance Monitoring view, where you can view BTS's performance measurements (see Monitoring BTS Performance). The view contains two tabs: Summary (selected as default) and Measurements.

The Measurements tab shows counter specific information. When the Measurement tab is selected, the list on the left displays the local cells, counter groups and counters as a tree view.

If there is new performance data available in the BTS, the button is enabled and you can read new data

from the BTS by clicking the button.

Select the counter from the list. Selecting the counter enables the Show By options, and you can select how the information is shown: by Counter (default) or by Time.

Show by Counter If you selected the Show By: Counter option, you can select the Presentation option: Table (default) or

Graph.

If you selected the Table option, the measurement times and values of the selected counter are displayed as a table format. The counter value is shown also in a graphical format inside the value field.

If you selected the Graph option, the values of the selected counter are displayed as a line graph. The x-axis shows the measurement time (maximum 24 times). The date is shown on the right and left sides of the x-axis. The time format is localised. The y-axis shows the counter values.

Show By Time If you selected the Show By: Time option, the local cells and measurement times are shown in the list on

the left. The time format is localised. Select the time to see all the counters and their values in the selected time.



Appendix 2

• CDMA Loop Test


The following different success/failure indications are distinguished: • Ok – There were no failures regarding to testing this connection. Initially, this indication is assigned to each connection.• WAM Not Responding – WAM unit of this connection did not respond.• WAM State Inconsistent – Test-dedicated state was required to execute the test (RNC was not connected), but WAM unit of this connection failed to

enter the state. WAM is potentially in inconsistent state and requires a reset.• Interrupted – The test was interrupted by the test requester, leaving this connection not tested.• WTR Not Responding – WTR unit of this connection did not respond• Signal-Path Not Closed – WTR unit of this connection refused to close signal path for testing this connection• Signal-Path Not Open – WTR unit of this connection refused to open signal path after testing this connection• RNC Not Connected – WAM unit of this connection refused to start elementary test, because it is in operational state while RNC is not connected. • NOTE: The failure above should not occur, because all scheduled WAMs are automatically forced into test-dedicated state if RNC is not connected during

batch test started. Elementary tests through WAMs, which failed to enter test-dedicated state, are preventively unscheduled with Connection Success appropriately evaluated. Furthermore, changes in RNC connection during the test cannot affect elementary test results, because the batch scheduler will force elementary tests to assume the status detected in the beginning of the batch test (to optimize its overall duration) i.e. the detection is skipped in elementary tests.

• RNC Detection Failure – Batch test scheduler could not start elementary test because it failed to detect status of RNC connection. As the scheduler will run on the same WAM where database resides, the detection cannot fail unless OAM SW is malfunctioning.

• NOTE: This failure should be equal for all elementary tests, because batch scheduler detects RNC status itself (once in the beginning of the test) and skips the detection in all elementary tests (in order to optimize the overall duration of the batch test).

• No Test Report – WAM unit of this connection did not send the test report regarding to this connection• Telecom Not Responding – WAM unit of this connection could not perform the test of this connection because Telecom did not respond• Resources Not Reserved – WAM unit of this connection could not perform the test of this connection because Telecom refused to reserve resources

for this connection• Resources Not Released – Telecom refused to release resources reserved for testing this connection• WSP Not Allocated – WAM unit of this connection could not perform the test of this connection because appropriate WSP is allocated to other WAM in

this sub rack• ATM Not Responding – ATM unit of this connection did not respond• Test-Signal Not Started – ATM unit of this connection refused to generate test signal for testing this connection• Test-Signal Not Stopped – ATM unit of this connection refused to stop the test signal after testing this connection• Unexpected Internal Error – WAM unit of the connection indicated an error, which refers to some malfunctioning in the master or slave parts of the

Test Subsystem or in communication paths between them. • Skipped – The test was excluded by the optimization procedure.• Cell Overload – Current transmission power at WTR of this connection was too high to start a new loop test (see Cell Load Limit parameter of Start

CDMA Loop Test)• Loop Level Unfounded – It was not possible to find suitable loop level in proportion with currently received/transmitted power at WTR of this

connection (even with the help of adjustable attenuator inside the WTR)• Cell power level should be set between 29dB and 41dB (Primary CPICH level from RNC parameters)



Connection BER• This item reflects the BER value measured during the test for this connection. The value of BER is expressed as a ratio of incorrect bits to

correct bits. The parameter is evaluated only if it was possible to capture this value during the test. Either the parameter is evaluated or not is indicated by the BER Success/Failure parameter.

Connection BER Success/Failure• This item indicates if BER/BLER were successfully evaluated for this connection. If the values are not valid, the failure reason is indicated. • The following different success/failure indications are distinguished: • Ok – The results were successfully evaluated• Not Passed – The results were successfully evaluated, but did not pass the test• Void – Testing this connection is not (yet) done or the test procedure failed before the results could be captured• ATM Not Responding – ATM unit did not respond• Analyzer Not Synchronized – BER analyzer could not synchronize at all or did synchronize for less than 30% of required data amount• Internal Error – OAM or ATM SW is malfunctioningConnection SIR• This item reflects signal-to-interference-ratio (SIR) of uplink DPCH, measured in the BTS receiver while testing this connection. SIR

measurement implementation in BS will provide SIR value ranging from -11dB to 20dB in 0.5dB steps. The parameter is evaluated only if it was possible to capture this value during the test. Either the value is evaluated or not is indicated by the Connection SIR Success/Failure parameter.

Connection SIR Success/Failure• This item indicates if SIR was successfully evaluated or not. If the value is not valid, the failure reason is indicated. The following different success/failure indications are distinguished: • Ok – The result was successfully evaluated• Not Passed – The results were successfully evaluated, but did not pass the test• Void – Testing this connection is not (yet) done or the test procedure failed before it was possible to capture the value• Telecom Not Responding – Telecom did not respond• Telecom Rejecting – Telecom could not send SIR value. Known cause is that Telecom could not get its value from DSP (RAKE)• SIR value is ranging from -11dB to 20dB in 0.5dB steps• Minimum required SIR is 2.0dB• If measured SIR is below minimum, Connection SIR Success/Failure in report shows "Not Passed"


nokia wcdma bts commissioning

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