side - ttu.ee · pdf fileside (irt 3930) loeng 12/2009 ... multi- media) access to people...
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Teenused 361
SIDE (IRT 3930)
Loeng 12/2009 Mobiilne lairiba Teema - teenused
Avo Ots telekommunikatsiooni õppetool,
TTÜ raadio- ja sidetehnika inst. [email protected]
Teenused 362
UMTS ootused
Arendaja
Parema kvaliteediga
teenused
- Kõrge spektriefektiivsus - Odav käigushoidmine - Lihtne võrguarendus - Tulevikuga - Globaalne standard - Suur võrgu kasutus- intensiivsus
• Suurem bitikiirus
• Q-o-S
- Paremad terminaalid
- Globaalne turg
Operaator
Tarbija
Teenused 363
WCDMA
• 5 MHz carriers
• Frequency Division Duplex, FDD
• 3.84 Mcps chip rate
• Variable spreading codes
f
t
10 ms frame
5.0 MHz
P
• Optimized packet access on common or dedicated channel
• High spectrum efficiency
Teenused 364
Ühildatavus
Access to people and information
GSM/UMTS dual-mode terminals
GSM terminals
UMTS terminals
GSM Radio Access
UMTS Radio Access
GSM/UMTS Core Network
Internet/ Intranet +
PSTN/ ISDN +
GRAN (Iu) A
Access to information and people (Data, Multi-
media)
Access to people
(Voice, Video)
Teenused 365
FDD või TDD
f
t
UL DL
Duplex gap ∆ f ∆ f f
t
UL
DL
2 ∆ f
Guard
period
Frequency division duplex (FDD) Time division duplex (TDD)
Teenused 366
Sagedusjaotus 1850 1900 1950 2000 2050 2100 2150 2200
ITU Allocations (WARC-92) IMT-2000 IMT-2000 MSS MSS
USA MSS MSS
PCS
IS-95, DAMPS, GSM1900
Uplink Downlink
Japan MSS MSS
PHS
UMTS Europe
UMTS GSM1800 DECT MSS MSS
TDD
Teenused 367
Sagedusressurss (UMTS tarvis)
20 (35) MHz for TDD
2 * 60 MHz FDD
1850
1900 1950 2000 2050 2100 2150 2200 2250
20 20 60 30 15 30
DECT
MHz
GSM 1800
60
Teenused 368
Sageduskasutus
Unlicensed EIRP
100mW
ETSI Regulation
Unlicensed EIRP 4W
US Regulation
Unlicensed EIRP 200mW
Indoor
EIRP 1W
EIRP
200mW Indoor
5.15 ... 5.35 2.4 ... 2.4835
Unlicensed EIRP 1W
5.470 ... 5.725
Unlicensed EIRP 4W
5.725 ... 5.825
Frequency Bands / GHz
Licensed PMP-Radio
2.5 ... 2.686
No FCC License
No CEPT Rec.
Licensed MMDS
No FCC License
discussions on creating a
new HEN
3.4 ... 3.6
Unlicensed
WiFi occupied
Licensed* PMP
* 2.540 ... 2.655 terminable by 2007
(European UMTS expansion)
Teenused 369
Spreading Factor
Chiprate Mchips/s
User Bitrate kbit/s
3,84
3,84
3,84
3,84
3,84
3,84
3,84
256
128
64
32
16
8
4
15
30
60
120
240
480
960
Bitikiirus kasutaja tarvis
Teenused 370
• IS-95 (1.25 MHz)
• CDMA2000 (3.75 MHz)
• WCDMA (5 MHz)
f
Code
t
MS 1 MS 2 MS 3
5 MHz
Direct Sequence - Code Division Multiple Access (DS-CDMA)
Teenused 371
CDMA vs WCDMA
1.25 MHz. 1.25 MHz.
F1 F2 F3
GUARD GUARD
СDMA2000
1X 1Х
EVDO
5 MHz.
GUARD GUARD
Wideband Carrier
WCDMA (UMTS)
Teenused 372
Hajutatud spektriga süsteem
Teenused 373
Hajutatud spekter Spread Spectrum
Teenused 374
Hajutustegur SF = 4
Teenused 375
f
Channel
Quality
f
Channel
Quality
Hajutatud spektri eelised
Teenused 376
Edasiarendus GSM-ist
RNS
RNC
RNS
RNC
UMTS Core Network
Node B Node B Node B Node B
Iu Iu
Iur
Iub Iub Iub Iub
Uu
Ch
a n n el
4s
ak
dj
fl
ö
la
dk
sf
j
as
ld
f
öa
d
öl
kd
qw
e
rr
ti
uo
d
kl
c
.
sa
kd
jf
lö
l
ad
ks
fj
as
ld
f
öa
d
öl
kd
qw
e
rr
ti
uo
d
kl
c
.
sa
kd
jf
lö
l
ad
ks
fj
as
ld
f
öa
d
öl
kd
qw
e
rr
ti
uo
d
kl
c
.
UE
UTRAN
BSC BSC
Core Network
BTS BTS BTS BTS
A A
Abis Abis Abis Abis
Um
UE
GSM BSS
GSM
Teenused 377
3GPP (asutamine)
ETSI Members
ETSI
ARIB Members
ARIB
TTA Members
TTA
T1P1 Members
T1P1
TTC Members
TTC
Europe Japan USA Japan Korea
3GPP 3GPP
Teenused 378
GSM & UMTS
S D
Mobile Station
MSC/ VLR
Base Station Subsystem
GMSC
Network Subsystem
AUC EIR HLR
Other Networks
GGSN SGSN
BTS BSC
Node B RNC
RNS
UTRAN
SIM ME
USIM ME
+
PSTN
PLMN
Internet
Teenused 379
Kanalid ja realisatsioonid
Bearer requestBearer request Traffic ClassTraffic Class, , MaxMax. . Bit rateBit rate, , MaxMax. . DelayDelay, , Residual BER Residual BER ......
Radio Bearer NegotiationRadio Bearer Negotiation Requested Requested QoSQoS, , PriorityPriority, , MaximizingMaximizing System CapacitySystem Capacity
UTRAN realisationUTRAN realisation Coding SchemeCoding Scheme, , MAC and RLC SettingsMAC and RLC Settings, , Spreading FactorSpreading Factor, , Transport Transport
Format ParametersFormat Parameters, , Interleaving Interleaving ......
Teenused 380
Erinevad kandekanalid
TE MT UTRAN CN
CN Gateway TE
UMTS
TE/MT Local Bearer Service UMTS Bearer Service External Bearer
Service UMTS Bearer Service
Radio Access Bearer Service CN Bearer Service
Backbone Bearer Service Iu Bearer
Service Radio Bearer Service
UTRA FDD/TDD
Service Physical
Bearer Service
End-to end service
UMTS bearer service
Teenused 381
Radio Resource Control (RRC)
Medium Access Control (MAC)
Transport channels - grouped by method of transport
Physical layer
Layer 3
Logical channels - grouped by information content
- User Data - Control and signaling
Layer 2
Layer 1
Air Interface Direct RRC control of the physical layer
Physical channels Physical Channels Distinguished by: - RF Frequency - Channelization Code - Spreading Code - Modulation (I/Q) Phase (uplink) - Timeslot (TDD mode)
UTRAN OSI Model
Teenused 382
Raadiokanalid Radio Access Bearers
• RAB tagab ühendusse UTRAN-is.
• RAB ühendusel on olenevalt teenustest erinevad parameetrid
RNC Core Network
Node B UE
Radio Access Bearer
UTRAN
Teenused 383
Soft Handover (Add/Drop)
ADD RP DR pilot
Teenused 384
Soft HandoverSoft Handover
UE
•UE (mobiil) ühendub mitme samal sagedusel töötava tugijaamaga •Vajame mitmekiirelist vastuvõtjat => RAKE
Teenused 385
Koodmultipleksimisega ühispöördus
“CDMA” = SSMA + Orthogonal Coding
(IS-95, cdma2000, WCDMA) Spread Spectrum Multiple Access (SSMA) Allows multiple CDMA transmitters Pseudo Noise (PN) codes to share the same Radio Frequency
Orthogonal Coding Channelization codes : Allows multiple data channels to co-exist within each CDMA transmission
Teenused 386
Kanalimoodustamise koodid Channelization codes
CC1 & CC2 CC3,CC4 & CC5
Allalülis kasutatakse kanalikoode kanalite eristamiseks samas tugijaamas. In the Downlink Orthogonal Codes are used to distinguish
between data channels from the same Base Station
CC1,CC2,CC3 CC1 & CC2
Üleslülis kasutatakse kanalikoode kanalite eristamiseks samas mobiilis. In the Uplink Orthogonal Codes are used to distinguish between data channels from the same mobile
Teenused 387
PN code 1
PN code 3
PN code 1
PN code 4
BS 1 transmits on PN code 1
PN code 2
PN code 5
PN code 2
PN code 6
BS 2 transmits on PN code 2
Pseudojuhuslikud koodid Pseudo Noise (PN) codes
Teenused 388
Kanalid ja teenused
2 data channels (voice, control)
PN3 + OC1 + OC2
2 data channels (14 kbps data, control)
PN4 + OC1 + OC2
3 data channels (voice, video, control)
PN2 + OC1 + OC2 + OC3
3 data channels (voice, video, control)
PN5 + OC1 + OC2
4 data channels (384 kbps data, voice, video, control)
PN6 + OC1 + OC2 + OC3 + OC4
4 data channels (384 kbps data, voice, video, control)
PN2 + OC4 + OC5 + OC6 + OC7
2 data channels (voice, control)
PN1 + OC1 + OC2
1 data channels (control)
PN1 + OC3
Voice Conversation Uplink
Packet Data
Video conference
Video conference with Data
Pilot, Broadcast PN1 + OCP + OCB
Pilot, Broadcast PN2 + OCP + OCB
Teenused 389
Interferents (vastastikused häired)
Teenused 390
Sagedusalad ( ... aga)
Teenused 391
Asjatundmine
�Protocol test suite �Contribs to air interface base specs �Define regulatory requirements
�Marketing and promotion �Certification �Network interface specs
�Air interface base specs �Mobility extension �Management specs
Teenused 392
Traadita lairiba standardid
IEEE 802.15 Bluetooth
WAN
MAN
LAN
PAN
IEEE 802.11 WirelessLAN
HiperLAN/2 RLAN
IEEE 802.16 WirelessMAN
HiperMAN & HiperAccess
UMTS, EDGE (GSM)
ETSI BRAN
IEEE 802 ETSI
WiFi*
WiMAX*
Teenused 393
WCDMA (3G) ja WiMAX
Teenused 394
Terminalide (UE) multipleks
Teenused 395
MAN ja WAN
1900, 2100 MHz
450
MHz 900, 1800
MHz 2 – 6
GHz
allpool 11
GHz Sagedus-ala
tavaliselt
1,6 - 5 km
tavaliselt
1,6 - 8 km
tavaliselt
1,6 - 8 km
tavaliselt
1,6 - 5 km
tavaliselt
6 - 10 km Ulatus
kuni 2 Mbit/s (kuni 10 Mbit/s
kasutades HSDPA)
kuni 2,4 Mbit/s
(tavaliselt 300 – 600 Kbit/s)
kuni 384 Kbit/s
kuni 30 Mbit/s
(10 MHz riba)
kuni 75 Mbit/s
(20 MHz riba)
Läbilaske-võime
WWAN WWAN WWAN WMAN Mobiilne
WMAN Statsionaarne
Kasutus
3G (3G) 2,5G 802.16e
(2005) 802.16-2004 Standard
WCDMA/
UMTS
CDMA2000/
1 x EV-DO EDGE WiMax WiMax
Teenused 396
Lõpulingid (12) http://www.3gpp.org/ http://en.wikipedia.org/wiki/WCDMA http://en.wikipedia.org/wiki/Universal_Mobile_Tele
communications_System http://www.umts.de./
http://en.wikipedia.org/wiki/3G