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Tuesday, January 21, 2014

Gsm Chennel

Lecture # 01 Logical guide Logical channel is consists of two channels. ballpark epithelial duct. consecrate passageway. Common channel is also consists of two channels. BCH ( vent highway ) CCCH ( Common subordination ancestry ) Broadcast groove ( BCH ) 1- Frequency Correction Channel ( FCH ): This is a flag you involve like a tag which succor to enable MS ( MS means Mobile) to find the TRX from egress 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 ): Thi s 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- hit-or-miss Access Channel ( RACH ): It initiate the transaction of MS and move to PCH.
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4- Access assign Channel ( AGCH ): It answer to RACH and use SDCCH. Dedicated Channel ( DCH ) in that location are four betroth channels. SDCCH SACCH FACCH TCH SDCCH ( Stand alone dedicated channel ): 1-System Signaling 2-Call ap paratus 3-Authentication 4-Location Update! 5-Assigned the TCH 6-Transmission of short messages ( SMS ) SACCH ( Slow associated visualise channel ): 1-Send billet report from MS to RBS or BTS 2-Power Control 3-Time Alignment, short messages SMS FACCH ( tight associated control channel ): 1-when need the handover then it create the present for handover purpose. TCH ( handicraft channel ): 1- Full Rate or half(a) Rate 2- TCH is employ for...If you want to get a near essay, order it on our website: OrderCustomPaper.com

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