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Radio Access Network
Architecture
Jussi Tuominen
3GPP Release 99 Reference Architecture
Node B
RNC
Uu

UE

Node B

Iub

IuCS

SMSC
/VLR

Iur

SS7

SS7

GMSC

HLR EIR

Auc
...
UMTS Terrestial Radio Access Network
(UTRAN)
WCDMA Radio Interface Key Change from GSM
UTRAN elements are comparable to GS...
UTRAN Architecture
• Hierarchical Architecture

Node B

• Radio Network Subsystem
(RNS)

RNC
Node B
Uu

• UTRAN Elements:
...
Macro Diversity
Node B

Iu

RNC
Uu

Node B

Iub

Softer Handover

Iur

UE

•1 RNC

Node B
RNC
Uu

Node B

Iub
RNS
UTRAN

J...
Macro Diversity
Node B

Iu

RNC
Uu

Node B

Iub

Soft Handover

Iur

UE

•1 RNC (MDC)

Node B
RNC
Uu

Node B

Iub
RNS
UTRA...
Macro Diversity
Node B

Iu

SRNC
Uu

Node B

Iub

Iur

UE

DRNC
Node B

Iub
RNS
UTRAN

Jussi Tuominen 30.1.2002

• Number ...
Macro Diversity
Node B

Iu

SRNC
Uu

Node B

Iub

Iur

UE
Node B
DRNC
Uu

Node B

Iub
RNS
UTRAN

Jussi Tuominen 30.1.2002
...
Macro Diversity
Node B

Iu

RNC
Uu

Node B

Iub

SRNC Relocation

Iur

UE
Node B
SRNC
Uu

Node B

Iub
RNS
UTRAN

Jussi Tuo...
Node B
• Standardisation term (normally called as Base Station)
• Comparable to Base Tranceiver Station in GSM
• Responsib...
Radio Network Controller (RNC)
• Comparable to Base Station Controller in GSM
• Responsible for L2 processing of user data...
General Protocol model for UTRAN
Radio
Network
Layer

Control Plane

User Plane

Application
Protocol

Data
Stream(s)

Tra...
3GPP Release 99 Reference Architecture
Node B
RNC
Uu

UE

Node B

Iub

IuCS

SMSC
/VLR

Iur

SS7

SS7

GMSC

HLR EIR

PSTN...
Radio Access Network Application Part
(RANAP)
Key RANAP functions:
• Radio Access Bearer (between UE-CN)
• RAB Set-UP
• RA...
Iu-CS
Radio
Network
Layer

User Plane

RANAP

Transport
Network
Layer

Control Plane

Iu UP Protocol
Layer

Transport Netw...
Iu-PS
Radio
Network
Layer

Control Plane

User Plane

RANAP

Iu UP Protocol
Layer

Transport
Network
Layer

Transport Netw...
3GPP Release 99 Reference Architecture
Node B
RNC
Uu

UE

Node B

Iub

SMSC
/VLR

Iur

SS7

SS7

GMSC

HLR EIR

PSTN

Auc
...
Iu-BC
Radio
Network
Layer

Transport
Network
Layer

SA Broadcast Plane
SABP Protocol
Layer

Transport Network
User Plane

...
3GPP Release 99 Reference Architecture
Node B
RNC
Uu

UE

Node B

Iub

IuCS

SMSC
/VLR

Iur

SS7

SS7

GMSC

HLR EIR

PSTN...
Radio Network Subsystem Application Part (RNSAP)

Key RNSAP Functions:
•Radio Link
• Management (between SRNC and DRNC)
• ...
Iur
Radio
Network
Layer

Transport
Network
Layer

Control Plane

User Plane

RNSAP

Iur Data
Stream(s)

Transport Network
...
3GPP Release 99 Reference Architecture
Node B
RNC
Uu

UE

IuCS

SMSC
/VLR

Node B
Iub

Iur

SS7

SS7

GMSC

HLR EIR

PSTN
...
Node B Application Part (NBAP)

Key NBAP Functions:
• Cell Configuration Management
• Common Transport Channel Management
...
Iub
Radio Network
Control Plane

Q.2630.1
Q.2150.2

Transport
Layer

SSCF-UNI

SSCF-UNI

SSCOP

SSCOP

AAL Type 5

AAL Typ...
3GPP Release 99 Reference Architecture
Node B

IuCS

RNC
Uu

UE

Node B

Iub

SMSC
/VLR

Iur

SS7

SS7

GMSC

HLR EIR

PST...
3GPP Release 4 Reference Architecture
Node B

IuCS

RNC
Uu

UE

Node B

Nb

SMSC
Server

Mc

Mc
Nc

MGW
Iub

GMSC
Server

...
3GPP Release 5 Reference Architecture
Node B

MGCF
Cx

RNC
Uu

UE

Iub

Iur

Gr

MGW

MRF
Gi

SGSN
RNC
Node B

PSTN

Mr

N...
SS7 signalling in UMTS Core

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%UR...
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MTP-3 User Part

MTP-3 User Part

MTP-3 User Part

MTP-3 User Part

MTP-3

MTP-...
MTP3 User Adaptation Layer (M3UA)

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Stream Control Transmission Protocol (SCTP)
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Stream Control Transmission Protocol (SCTP)



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Stream Control Transmission Protocol (SCTP)

 %WHV 

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VWUXFWXUH RI 673

Source Port Number

 ELWV
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Lectute5 ran architecture

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Transcript of "Lectute5 ran architecture"

  1. 1. Radio Access Network Architecture Jussi Tuominen
  2. 2. 3GPP Release 99 Reference Architecture Node B RNC Uu UE Node B Iub IuCS SMSC /VLR Iur SS7 SS7 GMSC HLR EIR Auc Node B SGSN RNC Uu Node B IuPS Iub UTRAN Jussi Tuominen 30.1.2002 GGSN Gn Gi Core Network
  3. 3. UMTS Terrestial Radio Access Network (UTRAN) WCDMA Radio Interface Key Change from GSM UTRAN elements are comparable to GSM BSC & BTS Common Interface (Iu) for both PS and CS Core Core elements do not change dramatically - 3G SMSC/VLR provides ATM based Iu-CS interface - 3G SGSN supports ATM based Iu-PS interface Jussi Tuominen 30.1.2002
  4. 4. UTRAN Architecture • Hierarchical Architecture Node B • Radio Network Subsystem (RNS) RNC Node B Uu • UTRAN Elements: Iub Iur IuCS – Radio Network Controller – Node B (Base Station) • One RNC controls number of Node B’s Node B RNC Node B Uu Iub RNS UTRAN Jussi Tuominen 30.1.2002 IuPS • Node B is only connected to one RNC • New interface Iur for Macrodiversity
  5. 5. Macro Diversity Node B Iu RNC Uu Node B Iub Softer Handover Iur UE •1 RNC Node B RNC Uu Node B Iub RNS UTRAN Jussi Tuominen 30.1.2002 •1 BS
  6. 6. Macro Diversity Node B Iu RNC Uu Node B Iub Soft Handover Iur UE •1 RNC (MDC) Node B RNC Uu Node B Iub RNS UTRAN Jussi Tuominen 30.1.2002 • Number of BSs
  7. 7. Macro Diversity Node B Iu SRNC Uu Node B Iub Iur UE DRNC Node B Iub RNS UTRAN Jussi Tuominen 30.1.2002 • Number of BSs • 1 Serving RNC (MDC) Node B Uu Soft Handover • Number of Drift RNC
  8. 8. Macro Diversity Node B Iu SRNC Uu Node B Iub Iur UE Node B DRNC Uu Node B Iub RNS UTRAN Jussi Tuominen 30.1.2002 SRNC Anchoring Iu
  9. 9. Macro Diversity Node B Iu RNC Uu Node B Iub SRNC Relocation Iur UE Node B SRNC Uu Node B Iub RNS UTRAN Jussi Tuominen 30.1.2002 Iu
  10. 10. Node B • Standardisation term (normally called as Base Station) • Comparable to Base Tranceiver Station in GSM • Responsible for Air Interface Layer 1 • Key Node B Functions: • Modulation and spreading • RF Processing • Inner-loop power control • Rate matching • Macro diversity combining/splitting inside Node B Jussi Tuominen 30.1.2002
  11. 11. Radio Network Controller (RNC) • Comparable to Base Station Controller in GSM • Responsible for L2 processing of user data • Responsible for Radio Resource Management • Key RNC Functions: • Closed loop power control • Handover control • Admission control • Code allocation • Packet scheduling • Macro diversity combining/splitting over number of Node Bs Jussi Tuominen 30.1.2002
  12. 12. General Protocol model for UTRAN Radio Network Layer Control Plane User Plane Application Protocol Data Stream(s) Transport Network Layer Transport Network User Plane Transport Network Control Plane ALCAP(s) Signalling Bearer(s) Signalling Bearer(s) Physical Layer Lähde: 3GPP TS25401-380 Jussi Tuominen 30.1.2002 Transport Network User Plane Data Bearer(s)
  13. 13. 3GPP Release 99 Reference Architecture Node B RNC Uu UE Node B Iub IuCS SMSC /VLR Iur SS7 SS7 GMSC HLR EIR PSTN Auc Node B SGSN RNC Uu Node B IuPS Iub UTRAN Jussi Tuominen 30.1.2002 GGSN Gn PDN Gi Core Network
  14. 14. Radio Access Network Application Part (RANAP) Key RANAP functions: • Radio Access Bearer (between UE-CN) • RAB Set-UP • RAB Modification • Clearing RAB • Iu Bearer Release • SRNC Relocation • Paging Commands Jussi Tuominen 30.1.2002 Lähde: 3GPP TS 25410-360
  15. 15. Iu-CS Radio Network Layer User Plane RANAP Transport Network Layer Control Plane Iu UP Protocol Layer Transport Network User Plane Transport Network Control Plane Transport Network User Plane Q.2630.1 SCCP Q.2150.1 MTP3b MTP3b SSCF-NNI SSCF-NNI SSCOP SSCOP AAL5 AAL5 AAL2 ATM Physical Layer Jussi Tuominen 30.1.2002 Lähde: 3GPP TS 25410-360
  16. 16. Iu-PS Radio Network Layer Control Plane User Plane RANAP Iu UP Protocol Layer Transport Network Layer Transport Network User Plane Transport Network Control Plane Transport Network User Plane SCCP M3UA MTP3-B SCTP SSCF-NNI SSCF-NNI UDP IP SSCOP GTP-U AAL5 IP AAL5 ATM Physical Layer Jussi Tuominen 30.1.2002 ATM Physical Layer Lähde: 3GPP TS 25410-360
  17. 17. 3GPP Release 99 Reference Architecture Node B RNC Uu UE Node B Iub SMSC /VLR Iur SS7 SS7 GMSC HLR EIR PSTN Auc Node B SGSN RNC GGSN Gn Uu Node B Iub IuBC UTRAN Jussi Tuominen 30.1.2002 PDN Gi CBC Core Network
  18. 18. Iu-BC Radio Network Layer Transport Network Layer SA Broadcast Plane SABP Protocol Layer Transport Network User Plane •Between RNC and Common Broadcast Center CBC •Service Area Broadcast Protocol (SABP) TCP IP AAL5 ATM Physical Layer Jussi Tuominen 30.1.2002 Lähde: 3GPP TS 25410-360
  19. 19. 3GPP Release 99 Reference Architecture Node B RNC Uu UE Node B Iub IuCS SMSC /VLR Iur SS7 SS7 GMSC HLR EIR PSTN Auc Node B SGSN RNC Uu Node B IuPS Iub UTRAN Jussi Tuominen 30.1.2002 GGSN Gn PDN Gi Core Network
  20. 20. Radio Network Subsystem Application Part (RNSAP) Key RNSAP Functions: •Radio Link • Management (between SRNC and DRNC) • Reconfiguration (between SRNC and DRNC) • Supervision (reports from DRNC to SRNC) • Common Control Channel (CCCH) Signalling Transfer • Paging • Relocation Execution Jussi Tuominen 30.1.2002
  21. 21. Iur Radio Network Layer Transport Network Layer Control Plane User Plane RNSAP Iur Data Stream(s) Transport Network User Plane Transport Network Control Plane Transport Network User Plane ALCAP(Q.2630.1) STC (Q.2150.1) SCCP MTP3-B M3UA MTP3-B M3UA SSCF-NNI SSCF-NNI SCTP SSCF-NNI SSCF-NNI SCTP SSCOP IP SSCOP IP AAL5 AAL5 AAL2 ATM Physical Layer Jussi Tuominen 30.1.2002 Lähde: 3GPP TS 25420-340
  22. 22. 3GPP Release 99 Reference Architecture Node B RNC Uu UE IuCS SMSC /VLR Node B Iub Iur SS7 SS7 GMSC HLR EIR PSTN Auc Node B SGSN RNC Uu Node B IuPS Iub UTRAN Jussi Tuominen 30.1.2002 GGSN Gn PDN Gi Core Network
  23. 23. Node B Application Part (NBAP) Key NBAP Functions: • Cell Configuration Management • Common Transport Channel Management • System Information Management • Configuration Verification/Alignment • Measurements on Common Resources • Radio Link Management & Supervision Jussi Tuominen 30.1.2002
  24. 24. Iub Radio Network Control Plane Q.2630.1 Q.2150.2 Transport Layer SSCF-UNI SSCF-UNI SSCOP SSCOP AAL Type 5 AAL Type 5 AAL Type 2 ATM Physical Layer Jussi Tuominen 30.1.2002 Lähde: 3GPP TS 25420-340 CPCH FP ALCAP USCH FP DSCH FP PCH FP FACH FP RACH FP Node B Application Part (NBAP) User Plane DCH FP Radio Network Layer Transport Network Control Plane
  25. 25. 3GPP Release 99 Reference Architecture Node B IuCS RNC Uu UE Node B Iub SMSC /VLR Iur SS7 SS7 GMSC HLR EIR PSTN Auc Node B SGSN RNC Uu Node B IuPS Iub GGSN Gn PDN Gi RNS UTRAN Jussi Tuominen 30.1.2002 Core Network
  26. 26. 3GPP Release 4 Reference Architecture Node B IuCS RNC Uu UE Node B Nb SMSC Server Mc Mc Nc MGW Iub GMSC Server Iur SS7 MGW HLR EIR PSTN Auc Node B SGSN RNC Uu Node B IuPS Iub GGSN Gn PDN Gi RNS UTRAN Jussi Tuominen 30.1.2002 Core Network
  27. 27. 3GPP Release 5 Reference Architecture Node B MGCF Cx RNC Uu UE Iub Iur Gr MGW MRF Gi SGSN RNC Node B PSTN Mr Node B Uu Mc CSCF HSS Node B Mg SGW IuPS Iub Mm PDN GGSN Gn Gi RNS UTRAN Jussi Tuominen 30.1.2002 Core Network NOTE: Standardisation on-going!
  28. 28. SS7 signalling in UMTS Core 7KH RULJLQDO 073 VWDFN RPPRQO XVHG LQ *60 RUH LQWHUIDFHV 7KH $70 EDVHG 66 VWDFN SURYLGHV %URDGEDQG 66 DUFKLWHFWXUH 7KH ,3 EDVHG VWDFN XVHV 6WUHDP RQWURO 7UDQVPLVVLRQ 3URWRFRO 673
  29. 29. WR GHOLYHU 66 VLJQDOOLQJ RYHU ,3 QHWZRUNV MTP-3 User Part MTP-3 User Part MTP-3 User Part MTP-3 User Part MTP-3 MTP-3 B MTP-3 B M3UA MTP-2 SSCF SSCF SCTP MTP-1 SCCOP SCCOP IP AAL5 AAL5 ATM G.804 $70 RYHU 6'+ Jussi Tuominen 30.1.2002 $70 RYHU 3'+ Lähde: 3GPP TS 25420-340
  30. 30. MTP3 User Adaptation Layer (M3UA) ‡08$ LV DQ 8VHU DGDSWDWLRQ VXEODHU WKDW SURYLGHV IXQFWLRQV UHTXLUHG E VLJQDOLQJ DSSOLFDWLRQ SURWRFROV ‡,(7) LV FXUUHQWO VWDQGDUGLVLQJ ILYH DGDSWDWLRQ VXEODHUV 03$ 08$ 08$ 68$ DQG ,8$ 1RWH WKDW HDFK SURWRFRO FDQ EH LPSOHPHQWHG VHSDUDWHO IURP RWKHU SURWRFROV HJ 08$ GR QRW UHTXLUH VHUYLFHV IURP 08$ Jussi Tuominen 30.1.2002 MTP-3 User Part M3UA SCTP IP
  31. 31. Stream Control Transmission Protocol (SCTP) :K XVH 673 LQVWHDG RI VLPSO XWLOVLQJ 73 73 DSSOLFDWLRQV KDYH DQ LQFRQYHQLHQFH UHTXLUHPHQW WR PDQDJH DQG PDUN WKH VHTXHQFH QXPEHUV RI HDFK SDFNHW 7KH OLPLWHG VFRSH RI 73 VRFNHWV GRHV QRW VXSSRUW WKH GDWD WUDQVIHU FDSDELOLW XVLQJ PXOWLKRPHG KRVWV Jussi Tuominen 30.1.2002 $OWKRXJK WKH 73 SURYLGHV UHOLDEOH GHOLYHU RI GDWD LW RIWHQ DGGV XQQHFHVVDU VLJQDOOLQJ DQG WKXV FDXVHV XQZDQWHG GHOD RI VHUYLFH 6HFXULW RI 73 LV OLPLWHG )RU H[DPSOH WKH 73 LV UHODWLYHO YXOQHUDEOH WR GHQLDO RI VHUYLFH DWWDFNV VXFK DV 61 DWWDFNV MTP-3 User Part M3UA SCTP IP
  32. 32. Stream Control Transmission Protocol (SCTP) $FNQRZOHGJHG HUURUIUHH DQG QRQ GXSOLFDWHG SDFNHWRULHQWHG GHOLYHU RI VLJQDOOLQJ PHVVDJHV :KDW GRHV 673 GR MTP-3 User Part ,Q VHTXHQFH GHOLYHU RI XVHU PHVVDJHV ZLWKLQ PXOWLSOH VWUHDPV ZLWK DQ RSWLRQ IRU RUGHURIDUULYDO GHOLYHU RI LQGLYLGXDO PHVVDJHV M3UA SCTP IP Jussi Tuominen 30.1.2002 2SWLRQDOO PXOWLSOH[LQJ PXOWLSOH XVHU PHVVDJHV LQWR D VLQJOH 673 GDWDJUDP 1HWZRUN OHYHO IDXOW WROHUDQFH E VXSSRUWLQJ PXOWLKRPLQJ $GYDQFHG FRQJHVWLRQ PHFKDQLVPV IRU UHVLVWDQFH WR IORRGLQJ DQG PDVTXDUDGH DWWDFNV
  33. 33. Stream Control Transmission Protocol (SCTP) %WHV :KDW LV WKH VWUXFWXUH RI 673 Source Port Number ELWV
  34. 34. Destination Port Number 5RZ MTP-3 User Part Verification Tag M3UA Checksum Chunk Type ´ ´ SCTP Chunk Flags Chunk Length Chunk Value field ( information to be transferred in the chunk) ´ 1´ 673 +HDGHU 673 3DORDG HJ 08$ PHVVDJH
  35. 35. Jussi Tuominen 30.1.2002 IP
  36. 36. MAP CAP T CAP INAP B S S AP R ANAP B ICC S CCP M3UA S CT P (16+B ytes ) IP v4 (20 bytes ), IP v6 (40 bytes ) Gbe,AT M, etc. IS UP H.248 RT P UDP (8) T CP (20)
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