GSM parameter

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[sapphire2]

Hi,
I'm new in telco industry.So,can anyone help me to give brief explaination (what it means and the importance of it) on certain parameters which I think quite important to know n understand.

DTHAMR/DTHNAMR
BCCH
SDCCH
HSN
TSC
FPDCH

Long list,actually.But for the time being,better for me to know/learn bout this few parameters first.Already try to search tru internet,but then,hard to find pages that really gif the meaning and the importance of those paramaters.
Appreaciate if anyone can response on this.

Thanks in advance!!!

[kniroshansl]

>> BCCH - Broadcast Control Channel , The MS must receive some general information concerning the cell in order to start roaming, waiting for calls to arrive or making calls. The needed information is broadcast on the Broadcast Control Channel (BCCH) and includes the Location Area Identity (LAI), maximum output power allowed in the cell and the BCCH carriers for the neighboring cells on which
the MS performs measurements. BCCH is transmitted on the downlink only.

>> SDCCH - Stand alone Dedicated Control Channel,The MS as well as the BTS switches over to the assigned SDCCH. The call set-up procedure is performed on the SDCCH, as well as the textual message transmission (short message and cell broadcast) in idle mode. SDCCH is transmitted both uplink and downlink. When call set-up is performed, the MS is told to switch to a TCH.

>> HSN - Hopping Sequence Number, there are 1 to 63 combinations are exist under HSN, so accoding to the HSN value hopping the frequency amoung the TRM will be differ.

>> TSC - Telecommunication Signalling Card, provide physical connectivity to the network visit to http://docs.hp.com/en/5971-3504/apbs03.html