66
1

Microsoft PowerPoint - MY_GSM_2 [Compatibility Mode]

Embed Size (px)

DESCRIPTION

GSM introduction part 2

Citation preview

123456789101112bits I 0G . \ . C: 7EM @= = ,< .. 0 ^ 3 L Interleaving . H3 =H>. @\ \2: 0=H F=G . H3 =>G K L.. .O I I2 ? HC K L 57 bit . 5 \ @ 1 8 blocks F=G 456 bit T KFL.8 F=G 456 bit T K a1 H5` 6 . L A=,> I>_ F=G H71 @68 HB blocks: blocks1314151617181920212223 msc psc pts(site)24***** Bts BSIC SCH bts , BSIC paging25Sms signal*** users sdcchDedicated 26 BTS ,, cell edge 272829303132333435363738394041424344454647 : Rician fading MS BTS Line Of Side MS BTS power : Rayleigh Fading MS BTS No Line Of Side .. 0 .4849Fe mnatek askniaa 3alyet kasafa > increase the fading margin > increase power( receiver senstivity) min levelta7tredh mrdh 2a2dar ast2beel 5051525354 Power fading 55 cells cell cell sectorization power BTS MS 56 cluster cells .... cell .... band pase filter Ms Idle cell .. ... .. ....57 cell cell Channel Management58 Power .. Power BTS .. . ... BTSs Power Power Power ...59 .. bit bit Delay Equalizer bits bits Training Sequance60616263646566