Lectute5 ran architecture

Radio Access NetworkArchitecture

Jussi Tuominen

3GPP Release 99 Reference Architecture

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Iu-PS

Gn Gi

SS7 SS7

Iu-CS

UTRAN Core Network

Jussi Tuominen 30.1.2002

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


UTRAN Architecture

• Hierarchical Architecture

• Radio Network Subsystem(RNS)

• UTRAN Elements:

– Radio Network Controller

– Node B (Base Station)

• One RNC controls number ofNode B’s

• Node B is only connected toone RNC

• New interface Iur forMacrodiversity

Node B

Node B

Node B

Node B

RNC

RNC

Uu

Uu Iub

Iub

Iu-PS

Iu-CSIur

UTRAN

RNS


Node B

RNC

IubUu

Node B

Node B

RNC

IubUu

Node B

Iur


Macro Diversity

Iu

RNS

UTRAN

Softer Handover

•1 BS

•1 RNCUE

Node B

RNC

IubUu

Node B

Node B

RNC

IubUu

Node B

Iur


Macro Diversity

Iu

RNS

UTRAN

Soft Handover

• Number of BSs

•1 RNC (MDC)UE

Node B

DRNC

IubUu

Node B

Node B

SRNC

IubUu

Node B

Iur


Macro Diversity

Iu

RNS

UTRAN

Soft Handover

• Number of BSs

• 1 Serving RNC (MDC)

• Number of Drift RNC

UE

Node B

DRNC

IubUu

Node B

Node B

SRNC

IubUu

Node B

Iur


Macro Diversity

Iu

RNS

UTRAN

SRNC Anchoring

UE Iu

Node B

SRNC

IubUu

Node B

Node B

RNC

IubUu

Node B

Iur


Macro Diversity

Iu

RNS

UTRAN

SRNC Relocation

UE Iu

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


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 ofNode Bs


General Protocol model for UTRAN


Lähde: 3GPP TS25401-380

ApplicationProtocol

DataStream(s)

ALCAP(s)

TransportNetwork

Layer

Physical Layer

SignallingBearer(s)

TransportUser

NetworkPlane

Control Plane User Plane

TransportUser

NetworkPlane

Transport NetworkControl Plane

RadioNetwork

Layer

SignallingBearer(s)

DataBearer(s)

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Iu-PS

Gn Gi

SS7 SS7



Iu-CS

UTRAN Core Network

PSTN

PDN

Radio Access Network Application Part(RANAP)

Jussi Tuominen 30.1.2002Lähde: 3GPP TS 25410-360

Key RANAP functions:

• Radio Access Bearer (between UE-CN)

• RAB Set-UP

• RAB Modification

• Clearing RAB

• Iu Bearer Release

• SRNC Relocation

• Paging Commands

Iu-CS


Q.2150.1

Q.2630.1

RANAP Iu UP ProtocolLayer

TransportNetwork

Layer

Physical Layer

TransportUser

NetworkPlane


TransportUser

NetworkPlane


RadioNetwork

Layer

ATM

SSCOP

AAL5

SSCOP

SSCF-NNI

AAL2AAL5

MTP3bMTP3b

SCCP

SSCF-NNI

Lähde: 3GPP TS 25410-360

Iu-PS


SSCF-NNI

SSCOP

AAL5

IP

SCTP

SCCP

SSCF-NNI

MTP3-BM3UA

RANAPIu UP Protocol

Layer

TransportNetwork

Layer

Physical Layer

TransportUser

NetworkPlane


TransportUser

NetworkPlane


RadioNetwork

Layer

ATM

AAL5

IP

UDP

GTP-U

Physical Layer

ATM


Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Gn Gi

SS7 SS7



UTRAN Core Network

PSTN

PDN

CBCIu-BC

Iu-BC



Transport Network

Layer

Radio Network

Layer SABP Protocol Layer

SA Broadcast Plane

Transport User

Network Plane

AAL5

IP

TCP

Physical Layer

ATM

•Between RNC andCommon BroadcastCenter CBC

•Service AreaBroadcast Protocol(SABP)

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Iu-PS

Gn Gi

SS7 SS7



Iu-CS

UTRAN Core Network

PSTN

PDN


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

Iur


SSCF-NNI

SSCOP

MTP3-B

AAL5

IP

SCTP

SCCP

AAL5

SSCF-NNI

STC (Q.2150.1)

RNSAP Iur DataStream(s)

TransportNetwork

Layer

Physical Layer

TransportUser

NetworkPlane


TransportUser

NetworkPlane


RadioNetwork

Layer

ATM

ALCAP(Q.2630.1)

AAL2

SSCF-NNI

SSCOP

MTP3-B

IP

SCTPSSCF-NNI

M3UA M3UA


Node B

RNC

IubUu

UENode B

Node B

RNC

Uu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Iu-PS

Gn Gi

SS7 SS7



Iu-CS

UTRAN Core Network

PSTN

PDN

Iub


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

Iub


Node BApplication Part

(NBAP)

AAL Type 2

ALCAP

TransportLayer

Physical Layer

RadioNetworkLayer

Radio NetworkControl Plane

TransportNetwork

Control Plane

DC

H F

P

RA

CH

FP

ATM

DSC

H FP

AAL Type 5

User Plane

SSCF-UNI

SSCOP

AAL Type 5

SSCF-UNI

SSCOP

Q.2630.1

Q.2150.2

FAC

H FP

PCH

FP

USC

H FP

CPC

H F

P

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC /VLR

GGSN

GMSC

HLR EIR Auc

Iu-PS

Gn Gi

SS7 SS7



Iu-CS

RNS

UTRAN Core Network

PSTN

PDN

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

SMSC Server

GGSN

GMSC Server

HLR EIR Auc

Iu-PS

Gn Gi

Nb

SS7



Iu-CS

RNS

UTRAN Core Network

PSTN

PDN

MGW MGWNc

Mc Mc

Node B

RNC

IubUu

UENode B

Node B

RNC

IubUu

Node B

Iur

SGSN

CSCF

GGSN

MGCF

HSS

Iu-PS

Gn Gi



RNS

UTRAN Core Network

PSTN

PDN

MGWCx

Gr

Mm

NOTE: Standardisation on-going!

MRF

SGW

Gi

Mr

Mg Mc

SS7 signalling in UMTS Core


IP

SCTP

M3UA

MTP-3 User Part

��

ATM

AAL5

SCCOP

SSCF

MTP-3 B

MTP-3 User Part

G.804

AAL5

SCCOP

SSCF

MTP-3 B

MTP-3 User Part

�� ! �� !

�� "��#��

MTP-1

MTP-2

MTP-3

MTP-3 User Part

�� $��%��&��

MTP3 User Adaptation Layer (M3UA)


IP

SCTP

M3UA

MTP-3 User Part

'�()��)��"��$��"��&��*��+��$��""��"��

'�,�-��$��&��"��$��.��/��*��/)�*�()�*��)�*��)��

0��"��"��"��$�&��"��*��*��()��+��&��/)�1

Stream Control Transmission Protocol (SCTP)


IP

SCTP

M3UA

MTP-3 User Part

2�$��&��"�$��3 ��*��"��

��$��&��&��$��$��&��

4

��""��+�� +��&��"��

/

��"��&�� ""��&��"��$��5��

(

��$��&��-��6��"��*��$��&�� *��70��

8



IP

SCTP

M3UA

MTP-3 User Part2��3

�� *��5&��5�"��"�� 5��$��&��4

��+��$��&��"��*��"��&��5�&5��$��&��

/

9"��$*��"��6��"��

(

0�� &��$�""��5��8

��&��&��+��

:



IP

SCTP

M3UA

MTP-3 User Part2��

��&��3Source Port Number Destination Port Number

Verification Tag

Checksum

Chunk Type Chunk Flags Chunk Length

Chunk Value field( information to be transferred in the chunk)

��!��

��$��*��()��

8�#$��;�(/��

4

/�<

(�<

8�<

0�<

��

=��

IPv4 (20 bytes), IPv6 (40 bytes)

MAP

Gbe,AT M, etc.

B ICC

S CT P (16+Bytes)H.248

S CCPR ANAPB S S AP

T CP(20)R T P

T CAPINAP

M3UAIS UP

CAP

UDP (8)

Date post:	10-Jun-2015
Category:	Lifestyle
Upload:	hans-zuberbuhler
View:	318 times
Download:	2 times

Lectute5 ran architecture

Lifestyle