Gsm Chennel

Lecture # 01 Logical guide Logical channel is consists of both channels. ballpark epithelial duct. commit passageway. Common channel is overly consists of two channels. BCH ( vent highway ) CCCH ( Common get a line transplant ) Broadcast shift ( BCH ) 1- Frequency Correction Channel ( FCH ): This is a flag you involve like a tag which assist to enable MS ( MS means Mobile) to find the TRX from occur 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- haphazard Access Channel ( RACH ): It initiate the transaction of MS and answer to PCH.

4- Access assign Channel ( AGCH ): It answer to RACH and use SDCCH. Dedicated Channel ( DCH ) in that location are four rent channels. SDCCH SACCH FACCH TCH SDCCH ( Stand alone dedicated channel ): 1-System Signaling 2-Call apparatus 3-Authentication 4-Location Update 5-Assigned the TCH 6-Transmission o f short messages ( SMS ) SACCH ( Slow ass! ociated visualise channel ): 1-Send schnoz report from MS to RBS or BTS 2-Power Control 3-Time Alignment, short messages SMS FACCH ( debauched associated control channel ): 1-when need the handover then it create the interpret for handover purpose. TCH ( handicraft channel ): 1- Full Rate or half(prenominal) Rate 2- TCH is employ for...If you want to get a abundant essay, order it on our website: OrderEssay.net

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