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AdjacentAdjacentcell handlingcell handling

BSS S11

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Adjacent cell handlingAdjacent cell handling

After this module you will be able to:• Create and delete GSM adjacent cells with MML commands

• Create and delete WCDMA adjacent cells with MML commands

• Modify adjacent cell parameters

• Interrogate adjacent cell data

• Check adjacent cell data

Refer to S11 Documentation:

• Descriptions\ Functional Area Descriptions\ RadioNetwork Operability\ RadioNetwork Configurationmanagement\ Adjacent GSM cell handling

• Descriptions\ Functional Area Descriptions\ RadioNetwork Operability\ RadioNetwork Configurationmanagement\ Adjacent WCDMA RAN cell handling (option)

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Adjacent cellsAdjacent cells

BSC 1

BCC = 0NCC = 0

BTS = 4Name =DormagenLAC =501CI =1004BCCH freq=710

BTS =1Name =Bonn1LAC = 504CI = 20001BCCH freq=580

BSC 2

BTS = 1Name =Köln 1

LAC =500CI =10001BCCH freq=810

BTS = 3Name =Köln 3LAC =500CI =10003BCCH freq=870

SEG = 2Name =Köln 2LAC =500CI =10002BCCH freq=840

LAC =504

CI =10040SCC =44Freq =1234etc...

RNC 1

A segment can consists of several BTSs. They are necessary for combining different Frequency bands ordifferent BS hardware into one logical cell. Segments are represented by one Cell Identity.

Refer to S11 Documentation:

• Descriptions\ Feature Descriptions\ Capacity and Performance\Common BCCH Control

in BSC• Descriptions\ Feature Descriptions\ Capacity and Performance\Multi BCF Control in BSC

Commands of Adjacent cell handling in BSC

ZEA?

C: ..... CREATE ADJACENT CELL PARAMETERS

D: ..... DELETE ADJACENT CELL PARAMETERS

M: ..... MODIFY ADJACENT CELL PARAMETERS

X: ..... MODIFY C/I HANDOVER PARAMETERS

O: ..... OUTPUT ADJACENT CELL PARAMETERS

 T; ..... CHECK ADJACENT CELL DATAE: ..... CREATE WCDMA RAN ADJACENT CELL PARAMETERS

G: ..... DELETE WCDMA RAN ADJACENT CELL PARAMETERS

H: ..... MODIFY WCDMA RAN ADJACENT CELL PARAMETERS

I: ..... OUTPUT WCDMA RAN ADJACENT CELL PARAMETERS

Adjacent cells in same BSC area are given by BTS number and foreign Adjacent cells are defined withnecessary cell parameters.

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Exercise: Adjacent cellsExercise: Adjacent cells

BSC

BCC =NCC =

BTS =Name =LAC =CI =BCCH freq=

BTS =Name =LAC =CI =BCCH freq=

BSC y

BTS =Name =

LAC =CI =BCCH freq=

BTS =Name =LAC =CI =BCCH

BTS =Name =LAC =CI =BCCH freq=

LAC =504

CI =10040SCC =44Freq =1234etc...

RNC x

Exercise: Adjacent cells. Duration 20 min

Requirements: for each group 1 working BTS and a MML terminal

 You are working on BTS No______!

Find out the missing parameters of your BTS and update the drawing above.

 ____________________________________________________________________ 

 ____________________________________________________________________ 

 ____________________________________________________________________ 

Check all existing adjacencies to your BTS and delete them.

 ____________________________________________________________________ 

 ____________________________________________________________________ 

 ____________________________________________________________________ 

Choose 2 cells of your BSS and create one directional adjacencies. Present the adjacencies with arrows inthe picture above.

 ____________________________________________________________________  ____________________________________________________________________ 

 ____________________________________________________________________ 

Create an adjacency to a cell of another BSS.

 ____________________________________________________________________ 

 ____________________________________________________________________ 

Create an adjacency to a cell of a WCDMA cell.

 ____________________________________________________________________ 

 ____________________________________________________________________