- This topic has 8 replies, 1 voice, and was last updated 10 years, 3 months ago by sameer.
23rd February 2005 at 07:12 #40684TarunGuest
As the Gs interface between SGSN and MSC in a optional interface, but if we want to connect it then how can we do it. what are the steps for it?1st March 2005 at 15:26 #40685ScotGuest
It is nice to see your query on this important GPRS Things.
GS implemented using SS7.
Rgds14th March 2005 at 16:47 #40686OliverGuest
To implement Gb interface you have to do:
Defining subsystems 192 (bssgs) in both elements.
Defining GT analysis in both N.E. to exchange signalling messages
Defining which LAC belong to which MSC in SGSN. This is mandatory for processing combined GPRS-GSM messages.
BR14th March 2005 at 17:21 #40687ScotGuest
What s purpose of Gb and what protocal is used ?
And same for Gs Also ?
Rgds15th March 2005 at 14:16 #40688OliverGuest
Gb is used to connect BSC to SGSN. Its purpose is to get acces to the GPRS network.16th March 2005 at 06:58 #40689ScotGuest
Between BSC and SGSN I beleive PCU will be there.
Is this PCU is transparent like TRAU ?
Gb-Which Protocal is used ?
Rgds12th April 2005 at 00:22 #40690amberishGuest
In gprs ,there is only two thing is mandotary to workout..
1. gb link betwenn bsc and SGSN
2. Gs link between msc and SGSN
in gb link there is also Gd link we have to define which is for data part and there is one link which is for signalling between bsc and SGSN it is Gd link with Lapd protcol.and anothere thing is that for every bsc u have to give DLCI which is same at both end bsc and SGSN…and most important is on which timeslot u r defining gb link must be same at SGSN side.
if more query then ask.15th April 2005 at 05:00 #40691ASAD MAHMOOD KHANGuest
Hi u all,
Gs importance is for location update basically it was totally optional.But to avoid double location update by mobile every time to the GPRS and MSC side Gs interface came in picture and now only one location update is sufficient and SGSN/GGSN and MSC take care about each other related related to update.
Best Wishes3rd February 2011 at 18:40 #40692sameerGuest
can sme 1 tell us the complete overview how gb link is established bet bsc nd sgsn