- This topic has 115 replies, 1 voice, and was last updated 5 years, 11 months ago by
Surajit Saha.
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JAGDISH
GuestWHAT IS THE REASON OF HIGH VALUE OF SDCCH TIME CONGESTION UL % IN BSC NODE.
m
GuestLeon,
im sorry u need to sincerely blush your GSM basics
JM
GuestHow can I improved SDCCH Setup Success?
Aadi
Guesthi,i have a problem,i am working on TEMS,how can i improve the speed of gprs,if i get the rx level of -65db.
Asanka
Guestgive me data rate calculations for gsm voice traffic. origination of FR and HFR
RPE-LPTSanjeet Ghosh
GuestHi to all, I am an RF Optimizer in ITI working for BSNL in MP.
Can anyone tell me “What is out going SDCCH handover?”
Pix
GuestHello,
When a MS is performing a SDCCH transfer (call setup, SMS, loc. upd.) and suffering low Rxlev, poor RxQual, or better neighbour, then the BSC will command the MS to perform aHO to a neighbour cell. The MS will resume the SDCCH transfer on a SDCCH subchannel of the target cell.
That’s a SDCCH HO.
in the first cell: outgoing ho
in the target cell : incoming hoSanjeet Ghosh
GuestThanks Pix…..
Would u kindly tell me…
1> What is 1×1, 1×3,1×4 frequency planning?
2> The values of RLT & it’s unit?Pix
Guest1/ it’s SFH techniques, a kind of frequency hopping based on a wide number of hopping channels.
2/ Radio Link Time out, def value is 18 SACCH (= 0.48s). It’s the time before a drop is detected because no SACCH can be decoded in either direction. (18 SACCH, that’s about 9 seconds)
dkumar
Guesthi
please tell me about signalling transaction in terms of MSU.
in alcatel gsm switch one sig=4 MSU how?
no of bytes per second supported by i ss7 link 64 Kbps=8000. How?
pl explain it.GINA
Guestplease tell me about the gsm key perfomance indicators
dkumar
Guestgsm key indicator
signalling capacity for roamers international and national
how the roamers are associated with signalling capacity.please tell me about signalling transaction in terms of MSU.
in alcatel gsm switch one sig=4 MSU how?
no of bytes per second supported by i ss7 link 64 Kbps=8000. How?
pl explain it.Bindas
GuestCan anyone plz tell that how can i change the background color of cells in TEMS Investigation Route Analysis ??
rachit
Guestdo we require SDCCH also on case of handover attempt?? or we check only for tch availability
Rex
GuestHi rachit,
as I know, in case of handover attempt there is no need for sdcch, BSC checks if any TCH available on target cell; if yes, HO proceeds, if no, the call will continue on the source cell (ROC – Reversed to Old Channel).
Regards,
Rex -
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