3G Concepts Final RevD

60
3G CONCEPTS

description

dsdsdsdddfdf

Transcript of 3G Concepts Final RevD

3G CONCEPTSARE WE LIVING IN THE SEA ????ARE WE LIVING IN THE SEA ????Neurons are surrounded by a fluid with a chemical composition identical to the sea waterEvolution of Mobile Technologies 1ST GENERATION MOBILE TELECOM SYSTEMS 1st Generation mobile communications started in the late 70s Advanced Mobile Phone Service (AMPS in !he "S Nordic Mobile Tele#hon$ (NMT in Nor!hern E%ro#e To!al Acce&& 'o((%nica!ion S$&!e( (TA'S in )ri!ain ba&ed on AMPSThese systems experienced great successDifferent systems were adopted in different countriesCharacteried primarily by analogue data and control and !re"uency Di#ision $ultiple %ccess &!D$%'Problems started to appear with 1st generation systems as the number of subscribers grew 1st generation systems were not very scalable security was very poorProblems started to appear with 1st generation systems as the number of subscribers grew 1st generation systems were not very scalable security was very poor1ST GENERATION (CONT..) Celltel launch 1st mobile operation in (ri )an*a using T%C( and later +T%C( system, -ad reasonable %nalog co#erage with ./( commissioned at mountain tops with maximum co#erage and (witch at *oti*awatta 2ND GENERATION MOBILE TELECOM SYSTEMSGlobal (ystem for $obile Communications &G($' T*MA+ba&ed ini!ia!ed b$ 'on,erence on E%ro#ean Po&! and Teleco( ('EPT in -./0 and la!er !a1en over b$ E%ro#ean Teleco( S!andard& In&!i!%!e (ETSI in -./. !he 2oal 3a& !o crea!e a co((on E%ro#ean di2i!al &!andard ,ir&! la%nched in -..- (ainl$ in .44 MH5 band b%! al&o o!her&6 e727 P'S (Per&onal 'o((%nica!ion& Service band in !he "S a! -.44 MH5-)and3id!h 0441H5 0(123 CD$% &Code Di#ision $ultiple %ccess' &!andardi5ed in -..8 in !he "S ,or !he /44 MH5 band6 driven e&&en!iall$ b$ 9%alco(( de#lo$ed (ainl$ in !he "S and :orea #o&i!ioned a& (ore &ec%re6 ea&ier !o #lan and (ore e,,icien! !han T*MA;MH5 channel ,ro( 8G and 2ive i! !o 0G AB 0> GSM carrier& AB 044 ne3 channel&G &ol%!ion& a& a &!e# !o3ard& 8G 8rd generation > referred to as ?$T( 9CD$% &9ideband CD$%' is the main 8rd generation air interface in the worldUniversal Mobile Telecommunications SystemUniversal Mobile Telecommunications System3RD GENERATION MOBILE TELECOM SYSTEMS (CONT) 9or* for 8rd generation started in 1224 when the 9%.C &9orld %dministrati#e .adio Conference' of the 0T? &0nternational Telecommunication ?nion' identified fre"uencies around 4 G- for 8G 9ithin the 0T?@ 8G was named 0$T4000 &0nternational $obile Telephony14000' 0$T14000 o#erall goals Global6 3i!h 3orld3ide co((on ,re?%enc$ band& and roa(in26 i(#roved ec!r%( e,,icienc$ e!c M%l!i(edia &%##or! 3i!h hi2h ?%ali!$ Hi2h+#ac1e! da!a ra!e& 5ac*et data rates 1 targets 0 Mb#& ,or ,i@ed 3irele&& 8/D :b#& ,or #ede&!rian -DD :b#& ,or vehic%lar !ra,,ic3.5G HSPA TECHNOLOGY-igher data rates achie#ed by increasing %ir interface $odulation schemes, 8G 9PS: 87>G -E9AM5ac*et data rates 1 targets Hi2h S#eed *o3nlin1 Pac1e! Acce&& &HS*PA -D7DM)#& Hi2h S#eed "#lin1 Pac1e! Acce&& &HS"PA >7/M)#&-igh (peed 5ac*et %ccess 1 -(5% ::: HS*PA F HS"PA 8,73G +#ol#ed -igh (peed 5ac*et %ccess &-(5%A'-ED 9AM-*a!a ra!e& %# !o 0- Mbi!;& in !he do3nlin1 and >7/ Mbi!;& in !he %#lin1 (#er >MH5 carrier Dual Carrier -igh (peed 5ac*et %ccess &-(5%A'-*a!a ra!e& %# !o D0 Mbi!;& in !he do3nlin1 and -- Mbi!;& in !he %#lin1 (>F> MH5 carrierWHAT WILL BE NEXT0nfrastructure for BG will be only pac*et1based &all105'$ain Technologies in Bth generation-8G55 )ong Term +#olution &)T+' -$obile 9i$ax (also known as WiBro in South Korea)%ir interface $odulation scheme further increase to ha#e higher data rates, 8G 9PS: 87>G -E9AM BG > 6BC%$Nominal data rates of 100$/ps$ost 8,3G systems a#ailable in the mar*et are )T+ ready,SERVICES FOR 3RD GENERATION?$T( defines B ser#ice classes@ with rates of up to 4 $bpsCon#ersational (er#ices low tolerance for delay@ =itter and errors 2enerall$ &$((e!rical !$#icall$ voice6 b%! al&o #ideo con,erencin20nteracti#e (er#ices ,or re?%e&!;reon&e !$#e o, a##lica!ion& low error6 b%! no !o%2h re?%ire(en!& on dela$ or Ci!!er(treaming (er#ices !$#icall$ ,or one+3a$ &ervice&6 e727 streaming audio and #ideo lo3 error6 b%! &ince %&er a##lica!ion b%,,er& da!a received6 nei!her Ci!!er nor dela$re?%ire(en!& are &!rin2en!/ac*ground (er#ices e727 ,or e(ail and SMS &ervice& !ha! can r%n in !he bac12ro%nd and donG! re?%ire direc! %&er involve(en! lo3 error b%! no #ar!ic%lar re?%ire(en!& on dela$8G 'once#!&APPLICATIONS AND SERVICES IN 3G8G contains excellent broadcast facilities for asymmetric control applications e727 e(bedded 8G da!a a##lica!ion& ,or re(o!e con!rol o, vehicle&6 re,ri2era!or&6 hi2h+end a##liance&$essaging 1e$ a##lica!ion &e2(en!6 3i!h 8G a be!!er in!e2ra!ion 3i!h e(ail can be achieved-igh speed 0nternet access)ocation1based applications !hi& i& al&o envi&a2ed a& a 1e$ &e2(en!6 e727 !o 2e! local in,or(a!ion abo%! re&!a%ran!& or ,riend& in !he nei2hborhood& or a& &%##or! in %&in2 8G !er(inal a& a navi2a!ion deviceGames@ but adapted to the smaller screen+lectronic payment get a better chance of succeeding with increased security and multimedia facilities9CD$% !undamentals ?$T( Terrestrial .adio %ccess Networ* &?T.%N' Cuestions,,:: 9hat are the type of access methods: T%C(D+T%C( G($ 0(123!D$% &43*-'!D$%ATD$% &400*- A ET('CD$% &1,43$-'!D$% &43*-'!D$%ATD$% &400*- A ET('CD$% &1,43$-'CDMA RADIO ACCESS TECHNOLOGYUsers are separated by codes (code channels), not by frequency or time Single Frequency is used in whole coverage area.Signals of other users are seen as noise-like interferenceCDMA system is an interference limited system which averages the interference (ref. to GSM which is a frequency limited system)ANALOGYUsers, like people send and received signal in the same frequency, But in diferent LanguageUsers, like people send and received signal in the same frequency, But in diferent LanguageFor a table, conversation of neighbors are noise.For UE, its same principle, neighbor conversations are interference For a table, conversation of neighbors are noise.For UE, its same principle, neighbor conversations are interference WCDMA USE IN 3G.!DD &