الثلاثاء، 7 مارس 2017

Broadcast Channels (BCH) 

  From Single BTS to all the mobiles in the area 
  • Frequency Correction Control Channel (FCCH)                                                                           *  Pure signal is transmitted to help the MS to lock on the frequency on the BTS
  • Synchronization Channel (SCH) 
                  *  Carries 2 important pieces of information
                            <1> TDMA frame number (max = 2715684 ) 
                            <2> Base station identity Code (BSIC) 
  • Broadcast Control Channel (BCCH) 

            *  Broadcasts some general cell information such as: 
                <1> Location Area Identity (LAI), 
                <2> maximum output power allowed in the cell  
                <3> The identity of BCCH carriers for neighboring cells. 
                <4> Cell parameters (Power , idle mode parameters)

0 التعليقات:

إرسال تعليق