Changing numreqbpc in channel group

OSS and NOC
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1

hello expert,
can someone advice in handling this error ?
RLBDC:CELL=REC1,CHGR=1,NUMREQBPC=16,NUMREQEGPRSBPC=16;
<;
NOT ACCEPTED
FAULT CODE 206
WANTED NUMBER OF CHANNELS NOT POSSIBLE TO CONFIGURE

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2

Hi, @King, you can add as many BPCs as TRXs*8, minus BCCH, SDCCH and other non TCH channels. Also NUMREQBPC >= NUMREQEGPRSBPC + NUMREQCS3CS4BPC.

1 Like
3

i have 4 TRXs

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image666Ă—177 1.1 KB

Channel group 0 and 1 have 8 NUMREQBPC each but i want to change the CHGR 1 NUMREQBPC to 24 ,
8+24=32, to match the number of TRXs but it is not working

4

Hi, are all TRXs connected to channel group ALL?

MO                CELL      CHGR    TEI      SIG      MCTRI    DCP1  SC
RXOTRX-1111-0     111111    ALL      0       SCCONC    0       178   0

MO                CELL      CHGR  BAND     ANT      MPWR
RXOTX-1111-0      111111    ALL   GSM900            43

And check the number of frequencies in channel groups RLCFP.

5

kindly find below the print out

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6

Ok, add at least 2 frequencies to channel group 1:

RLCFI:CELL=CELL1,DCHNO=11&22;

I suppose it is synthesized hopping, so you can use DCHNOs from other or neighbour cells with different MAIO and HSN.

2 Likes
7

THANKS IT WORKED.
Do u have any idea on how to resolve SD CONG in a cell ?

8

Hi, it depends on reasons: if it is a “railway station” you can add dynamical SDCCH RLACI/RLACC, in case of “high load highway” better option is to optimize a LAC borders. In other reasons maybe other solutions.

1 Like
9

okay thanks a lot for your help