Lecture # 01
Logical guide
Logical channel is consists of two channels.
ballpark epithelial duct.
Dedicated passageway.
Common channel is also consists of two channels.
BCH ( vent highway )
CCCH ( Common Control Channel )
Broadcast Channel ( BCH )
1- Frequency Correction Channel ( FCH ):
This is a flag you involve like a tag which help to enable MS ( MS means Mobile) to find the TRX from number of TRXs.
2- Synchronization Channel ( SCH ):
It reduce the BSIC & TDMA frame.
3- Broadcast Control Channel ( BCCH ):
It has complete discipline of Network and Cell such as :
a)Frequencies.
b)Frequency Hopping Sequence.
c)Channel Combination.
d)Paging Group.
e)Info. of neighbors cell.
f)Careful frequency fancy needed to make BCCH TRX clean.
Common Control Channel ( CCCH )
1-Paging Channel ( PCH ):
This is Broadcast Channel and it imbue to MS until the call terminate.
It broadcast to all BTS which has different Location ( LA ).
Basic knowledge, it has the breeding of Particular MS or User.
3- Random Access Channel ( RACH ):
It initiate the transaction of MS and respond to PCH.
4- Access assign Channel ( AGCH ):
It answer to RACH and use SDCCH.
Dedicated Channel ( DCH )
in that location are four employ channels.
SDCCH
SACCH
FACCH
TCH
SDCCH ( Stand alone dedicated channel ):
1-System Signaling
2-Call Setup
3-Authentication
4-Location Update
5-Assigned the TCH
6-Transmission of short messages ( SMS )
SACCH ( Slow associated visualise channel ):
1-Send bill report from MS to RBS or BTS
2-Power Control
3-Time Alignment, short messages SMS
FACCH ( Fast associated control channel ):
1-when need the handover then it create the map for handover purpose.
TCH ( handicraft channel ):
1- Full Rate or Half Rate
2- TCH is employ for...If you want to get a full essay, order it on our website: Ordercustompaper.com
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