[BSS]

dear
I have question about RX level Access min and RACH Access min which one has bigger effect to reduce SDCCH drop

[peyo]

Hi BSS,

Sorry for not being usefull on that case but what are you’re minimum level for both parameters?

[BSS]

peyo
dear RACH min access level is -105 and RX level Access min is -100

[andri]

basically, both can reduce SDCCH Drop. Higher value will get better SDCCH drop. Based on my experience, RACH Threshold should be less than Rx LevAmi…

[pix]

RACH threshold is the minimum rxlev below which a RACH burst is not decoded

RXLEV Access Min is the minimum rxlev below which a RACH burst is decoded and contains a Request for a Call (Normal or Emergency), but is rejected.

Increasing the RLAM is usually enough to increase the SDCCH success… fyi, in alcatel, the RACH Threshold is not changeable.

[andri]

yeah, that’s why we cant set RACH Threshold > Rx Level Minimum.

[ilyasse]

Hi!
what can i do about this parameters for to reduce SDCCH congestion rate:
Random access error threshold
RACCH access threshold

THANKS

[Author]

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