SDCCH DROP FAQ

[electron]

Hi All,

1.High SDCCH definition on a cell can cause high SDCCH drop rate on that cell?

2.What 's the exact difference between definition SDCCH on CHGR 0 and CHGR 1?


BR//
Reza

[kais]

1.High SDCCH definition on a cell can cause high SDCCH drop rate on that cell? ------> NO!

[hassen]

Hi
as example
RLCCC:CELL=BS1,CHGR=0,SDCCH=1,CBCH=NO,TN=1;
RLCHC:CELL=BS1,CHGR=0,HOP=OFF,HSN=0;
note hop=off it mean chgr=0 for bcch frequency
if you need more sdcch block defined on second TRX wich
frequency belong chgr=1 and ofcourse Tn is used as logical channel sdcch in the case of congestion
and as TCH for traffic
what makes the difference between chgr0 and 1.
br hassen

[plannerguy]

hi

I am working with seimens enviroment and i face a similar type issue,

we have a high SD Block in site near by railway line as they pass through LAC borders.

So we added SDs But then also blocking was not reduced , So know i am trying for Dynamic SD allocation.But heard that in siemens SD allocation as dynamic may prevent GPRS usage etc.

Experts please help me on same...........

Regards
Plannerguy

[kais]

u can define dynamic SD over non BCH TRX and there wil not be any effect on GPRS

hi

I am working with seimens enviroment and i face a similar type issue,

we have a high SD Block in site near by railway line as they pass through LAC borders.

So we added SDs But then also blocking was not reduced , So know i am trying for Dynamic SD allocation.But heard that in siemens SD allocation as dynamic may prevent GPRS usage etc.

Experts please help me on same...........

Regards
Plannerguy

[hassen]

hi electron

please see attached file and say thank you

br hassen