PSCallSetup

For internal use1 © Nokia Siemens Networks 20090119

PS Call SetupPS Call Setup

20092009--0101--1919


PS Call Setup• Attach And Detach

• PDP Context Activation

• Iu-CS VS Iu-PS

• Encryption


PMM and SM State

Detached

Connect

Idle

Inactive

Active

SM StatePMM State

ONAttach

OFFDetach

“Iu Release”Command

Message

PDP Context

Activation

PDP Context

Deactivation


GPRS Attach

UEATTACH REQUEST ( )

(Identification Procedure)

Authentication and Ciphering Procedure

ATTACH ACCEPT ( )

e.g. new TMSIor P-TMSI

ATTACH COMPLETE ( )

3G-SGSN


Radio Bearer Setup

UE Initiated PDP Context Activation

UE

3G-SGSN

GGSNACTIVATE PDP CONTEXT REQUEST ( )

ACTIVATE PDP CONTEXT ACCEPT ( )

CREATE PDP CONTEXT REQUEST

CREATE PDP CONTEXT RESPONSE

UPDATE PDP CONTEXT REQUEST

UPDATE PDP CONTEXT RESPONSE


PDP Context Activation

Protocol discriminator

Requested QoS

Requested LLC SAPI

Transaction indicator

Activate PDP contextrequest message ID

Requested PDP address

Access Point Name OP

Requested NSAPI

Protocol configurationoptions

01000001: Activate PDP context request

OP

1010: GPRS session management messages

• Delay class• Reliability class• Precedence class• Mean and peak throughput class• Maximum UL/DL bit rate• Transfer delay• Guaranteed UL/DL bit rate• Residual BER• Delivery order• etc.

UE 3G-SGSN

ACTIVATE PDP CONTEXT REQUEST ( )



Protocol discriminator

Negotiated QoS

Negotiated LLC SAPI

Transaction indicatorActivate PDP contextrequest message ID

PDP address

Packet Flow Identifier

OPProtocol configuration

options

OP

Radio priority

Spare half octet

OP

1010: GPRS session management messages

01000010: Activate PDP context accept

Not required in UMTS, but transmitted tosupport UMTS – GPRS cell reselection

UE 3G-SGSN

ACTIVATE PDP CONTEXT ACCEPT ( )


Iu-CS VS Iu-PS Call Setup

RRC

ServiceReq

Security Mode Command


RAB Establishment Iu-CS VS Iu-PS

For non-real time services, the radio access bearer is created without immediately reserving radio resources

RAB

Iu-CS Iu-PS



RAB Assignment Iu-CS VS Iu-PSIu-PS RAB-ASSIGNMENT REQUEST

RANAP-PDUinitiatingMessage

- procedureCode: 0- criticality: reject

initiatingMessageRAB-AssignmentRequestprotocolIEs

- id: 54- criticality: ignore

RAB-SetupOrModifyList- id: 53- firstCriticality: reject

firstValue- rAB-ID: '00000101'BrAB-Parameters

- trafficClass: background- rAB-AsymmetryIndicator: symmetric-bidirectional

maxBitrate- MaxBitrate: 128000

- deliveryOrder: delivery-order-not-requested- maxSDU-Size: 12016

sDU-ParametersresidualBitErrorRatio

- mantissa: 1- exponent: 5

Iu-CS RAB-ASSIGNMENT REQUEST

RANAP-PDUinitiatingMessage

- procedureCode: 0- criticality: reject

initiatingMessageRAB-AssignmentRequest

protocolIEs- id: 54- criticality: ignore

RAB-SetupOrModifyList- id: 53- firstCriticality: reject

firstValue- rAB-ID: '00000001'BrAB-Parameters

- trafficClass: conversational- rAB-AsymmetryIndicator: symmetric-bidirectional

maxBitrate- MaxBitrate: 12200

guaranteedBitRate- GuaranteedBitrate: 4750

- deliveryOrder: delivery-order-requested- maxSDU-Size: 244

sDU-ParameterssDU-ErrorRatio


Bit rate


RAB Assignment Iu-CS VS Iu-PSIu-PS residualBitErrorRatio


- deliveryOfErroneousSDU: no-error-detection-considerationallocationOrRetentionPriority

- priorityLevel: 2- pre-emptionCapability: shall-not-trigger-pre-emption- pre-emptionVulnerability: pre-emptable- queuingAllowed: queueing-not-allowed

- relocationRequirement: none

Iu-CS residualBitErrorRatio


- deliveryOfErroneousSDU: yessDU-FormatInformationParameters

- subflowSDU-Size: 81: :

residualBitErrorRatio- mantissa: 1- exponent: 3

- deliveryOfErroneousSDU: no-error-detection-considerationsDU-FormatInformationParameters


residualBitErrorRatio- mantissa: 5- exponent: 3

- deliveryOfErroneousSDU: no-error-detection-considerationsDU-FormatInformationParameters


- transferDelay: 80- sourceStatisticsDescriptor: speech


RAB Assignment Iu-CS VS Iu-PSIu-PS

userPlaneInformation- userPlaneMode: transparent-mode- uP-ModeVersions: '0000000000000001'B

transportLayerInformation- transportLayerAddress: '00001010001110100001010100000101'B

- -extension range: 0

- length (in bits): 00011111 - padding: 00000 - contents: 0A 3A 52 0C

iuTransportAssociation- gTP-TEI: '3C000000'H

- service-Handover: handover-to-GSM-should-not-be-performed- secondCriticality: ignore

secondValuepDP-TypeInformation

- PDP-Type: ipv4- PDP-Type: ipv4

- dataVolumeReportingIndication: do-not-report

Iu-CS

userPlaneInformation- userPlaneMode: support-mode-for-predefined-SDU-sizes- uP-ModeVersions: '0000000000000001'B

transportLayerInformation- transportLayerAddress:

'01000101000000000000000000000110011000011000000110010000000100010001111100000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000 0'B

- extension range: 0 - length (in bits): 10011111 - padding: 000000 - contents

45 00 00 06 61 81 90 11 1F 00 00 00 00 00 00 00 00 00 00 00

iuTransportAssociation- bindingID: '01025550'H

- secondCriticality: ignoresecondValue

Tunnel Unit (TU) of SGSNi.e. 10.58.82.12

Tunnel EndpointMGW A2EA


Encryption off and Encryption on

Encryption setting in 3G SGSN


Encryption off Encryption on

User Data can not be decoded


Encryption off Encryption on


Iu-PS Attach (1/2)UE RNC

RRC Connection Setup

GMM : Identity RequestRANAPRANAP

Identity Request (GMM)RRC RRC

SGSN Node-B

Initial Direct Transfer

Attach Request GMMRRC RRC

Initial UE Message

Attach Request GMMRANAPRANAP

Identity Response (GMM)RRC RRC

RANAPRANAPGMM: Identity Response


Iu-PS Attach (2/2)UE RNC

RRC Connection Setup

GMM: Authentication & Ciphering Request RANAPRANAP

GMM: Authentication & Ciphering RequestRRC RRC

SGSN Node-B

RRC RRC

RANAPRANAP

GMM: Authentication & Ciphering Response

GMM: Authentication & Ciphering Response

GMM: Attach Accept RANAPRANAP

GMM: Attach AcceptRRC RRC

RRC RRC

RANAPRANAP

GMM: Attach Complete

GMM: Attach Complete

Security Mode Command

Common IDRANAPRANAP


THANKS!

Documents

PSCallSetup