3G Vision: Integrated, Ubiquitous, Efficient High QOS

1 JW/AT 3/14/00Draft-wang-mobileip-umip-00.txt

PCN / PCS vision: “To enable anyone to communicate instantly with anyoneelse anywhere”

UMTS vision: “Providing communication services from any person to anyperson at any place and at any time without any form of delay throughany medium using one pocket-sized unit at minimum cost withacceptable quality and security through using a personaltelecommunications reference number”

IMT-2000: “provide telecommunication services to mobile and fixed usersvia a wireless link, covering a wide range of user sectors, radiotechnologies and coverage (cellular, satellite, cordless, etc.) andaccommodating a wide range of user equipment”

Motorola CE vision: “Creating integrated solutions to customers’ problems” NSS Vision: “To be the global leader of end-to-end wireless network solutions to

operators and service providers worldwide for all their telecom needs”

3G Vision: Integrated, Ubiquitous,Efficient High QOS Personal Service


2G Reality

WiredWiredWirelessWirelessIP NetworkIS-95

MIP SIP DNS

CableADSL

IP

HLRHLR VLRVLR

MSCMSC PSDNPSDN

GSM

HLRHLR VLRVLR

MSCMSCGGSNGGSN

SGSNSGSN FAFA HAHA FAFA HAHA

HAHA FAFA FAFA HAHA

MAPIS-41

Issues: Not compatibleNot integratedNot efficient


3G Needs Integrated Solution

WiredWiredWirelessWirelessAll IP SolutionIS-95

CableADSL

HLRHLR VLRVLR

MSCMSC PSDNPSDN

IS-41

Requirements Integrated User MobilityUbiquitous High QOSEfficient

GSM

HLRHLR

MSCMSC

MAPVLRVLR

GGSNGGSN

SGSNSGSN

Service Service ProvisionProvision

BillingBilling

IS-95 GSM 3G

SecuritySecurity

MobilityMobility


Existing IP Solution for User Mobility

IPFAFA

HAHA

DNSDNSAAAAAA

RequestRequest

Negative impacts•Time delay, jitters•Network efficiency•QOS•Cost

DNSDNSDNSDNS


3G Needs more Efficient Solution

Home MSC408-296

001-408-296-0303

001-861-6524-xxxx

The bottom line is cost and quality of serviceGlobal roamingMass commercial servicesReal-time application on IP network

It is a great concern for carriers [2][3]: “Routing of signaling and transport need to be optimized. Tromboning of the user’s voice of data communication session back to their home environment should not be used to provide the user with services when roaming outside their home network” (AWS)


Universal Mobile IP (UMIP)

LR-1

LR-3

LR-N

..

..

LR-2

..

LR-1

Environment. RAN independent. Multi-mode MN. Multi-layer overlapped coverageareas of heterogeneous RAN systems. Features

. Layered HA+FA structure

. Regional location updating + routingImprovements. No triangle routing in signaling + bearer . Homogeneous system architecture. Minimum MN involvement. Offers User mobility

Home Foreignb

b

b

b


Minimal MN involvement

Trigger: change of Zone IDNo knowledge on CN architecture details Not involved in location info update

Benefits for MNSimplifiedLow costLong battery life


UMIP Architecture

LR-111

LR-1

LR-11

LR-112 LR-121

LR-12

LR-122 LR-211

LR-2

LR-21

LR-212 LR-221

LR-22

LR-222

Zone ID:1113

ID:1113-5678

Zone ID2213

RAN

CN(IP)

L1

L2

L3

L4

Network Entity Identity: (e.g. NAI)[email protected] 576 [email protected]


UMIP Location Chain Setup Process

LR-111

LR-1

LR-11

LR-112 LR-121

LR-12

LR-122 LR-211

LR-2

LR-21

LR-212 LR-221

LR-22

LR-222

Zone ID2213

L1

L2

L3

L4

Zone ID:1113

ID:1113-5678

8

9

7

65

4

3

2

1

10

13

14

12

11

15UMIP L2 (L1) maintains

Security dataUser profileBilling information

UMIP RR distributes


UMIP LR Table

Key Index Pointer Status Lifetime Replay Protection

Key Index: UID (NAI)Pointer: Next hop LR IP address

(care of address)Status:

PendingActiveForwarding

Lifetime: (Time in seconds) Replay Protection

Backward compatible

Other InformationUser profileSecurity dataBilling information

There is a Location Entry only forForeignerNative roamerNative traveler


UMIP Location Chain Update Process

LR-111

LR-1

LR-11

LR-112 LR-121

LR-12

LR-122 LR-211

LR-2

LR-21

LR-212 LR-221

LR-22

LR-222

Zone ID2223

L1

L2

L3

L4

Zone ID:1113

ID:1113-5678

3

2

1 6

4

5

7

8


UMIP Location Chain Optimization

LR-111

LR-1

LR-11

LR-112 LR-121

LR-12

LR-122 LR-211

LR-2

LR-21

LR-212 LR-221

LR-22

LR-222

L1

L2

L3

L4

ID:1113-5678Zone ID:

1113Zone ID

2223


Well Recognized Technology

UMTS applications– Performance evaluation and architecture optimization [5]– DDB architecture, process and functional specifications,

consistency, reliability, integrity and security considerations,etc. [6]

ATM network applications– Multi-tree PNNI (Private Network-Network Interface)

structure [7]– Performance evaluation, architecture optimization [7]


Well Supported Technology

Architecture optimization– V. Anantharam, et.al., DB location selection, Bellcore (1994)– N. Tabbane, et. al., structure, ESPTT, TUNISIA, (1996)

Performance improvement– R. Jain., chain, caching strategy, Bellcore (1996-1999)– J. Ho, et, al. Chain references, NorTel (1997)

Error detection and recovery– K. Asdal, et. al., Aalborg University, Denmark (1995)

Fault-Tolerant Location Management– K. Ratnam, et. al., Northeastern University (1996)


Summary

Fully distributed solution: minimal triangle routing in signaling and bearer trafficSupporting user mobility (UID: e.g. NAI)Integrated UID mapping, MM, AAA, user profile to support real-time applicationIntegrated service for heterogeneous access networksIntegrated Macro / Micro Mobility managementMinimum MN involvementMinimum LR routing table (orders less than host based routing tables [4])Scaleable and software re-configurableCompatible with VHE, Dynamic DNS, Dynamic Home Agent assignment,

RTM[1], and RO[8]

UMIP is an enabling technology for 3G real-time commercialapplications with high QOS, low cost and global coverage


References

[1] E. Gustafsson, et.al. Mobile IP Regional Tunnel Management, draft-ietf-mobileip-reg-tunnel-01.txt

[2] 3GPP, TSG Services and System Aspects; Architecture for an All IP network, 3GPP TR23.xyzV0.1.4 (1999-9)

[3] Proposed Baseline Document for 3GT.IP Call Control and Roaming Models,3G.IP/99.08.17.XX

[4] J. Wang, The Tracing Strategy for Universal Personal Communication Systems, August 1993,IEEE JSAC

[5] C. Eynard et. al. “A Methodology for the Performance Evaluation of Data Query Strategies inUMTS”, IEEE JSAC, VOL 13 NO 5

[6] RACE, MONET, UMTS System Structure Document (Revised), R2066/BT/PM2/DS/P/113/b1[7] M. Veeraraghavan et. al., “Mobile Location Management in ATM Networks”, IEEE JSAC,

VOL 15, NO 8, 10/97[8] C. Perkins, et.al., Route Optimization in Mobile IP, draft-ietf-mobileip-optim-08.txt

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3G Vision: Integrated, Ubiquitous, Efficient High QOS