OMEC - Architectural Challenges

Himanshu PurohitArchitect

GS Lab

Road Ahead

Vikram BarateTechnical Manager

GS Lab

OMEC architecture

2

SAEGW-C

SGW-C

PGW-C

SAEGW-U

SGW-U

PGW-U

MME

DBHSS

PCRF CDFCTF

Intel SGX secured CDR

transporteNB

(simulators NG4T,Spirents, Polaris,

il_trafficgen)Application

Servers

SGi

Sxb

S558S1u

S1u

SGi

SxaSxaSxb

S558

GxS11

S1AP/NAS

S6A

Freediameter

GTPV2U

GTPV2C

PFCP

Data

Gateways : Architectural Challenges

Gateways : Architectural challenges

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

• 3GPP standards challenges

§ Combined SGW, PGW. CUPS. § 23.401, 23.214§ Gx, Sx, S11, S5S8

• Deployment cases, readiness

• Rules handling and rules engine

• SAEGW-C/U, SGW-C/U, PGW-C/U

Gateways : Road Ahead

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

Scalability Dynamic

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

Interface vs implementation

CLIStatistics

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

In all combinations

Lawful interception

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

Framework

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

Conformance

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

5G readiness

Gateways : Road Ahead

SAEGW-C PGW-C

SxaSxb Sxa Sxb

S1u

S5S8

S5S8

S11 DNS Gx X2_a OSS Mgmt

SGW-C

SAEGW-U PGW-USGW-U

3G, 2.5G

Backward compatibility

MME : Architecture Story

OpenMME : Architectural Considerations

• Compliance challenges

Stage

UE info

Q

Network interface applications: S6A, S11, S1AP

Over IPC -UE Index IF specific infoError state

Q

MME Core

Protocol engine

Over IPC -UE infoInterface msgdetails

Interface protocol send/rcv

• Architectural considerations

• Framework completion

OMEC : 5G Migration

OMEC Components 5G Migration

• SMF - Combined SGW, PGW on control planeØ UPF selectionØ Sxa, Sxb, Sxa/SxbØ Session Management

• UPF - Combined SGW & PGW on data plane

• OpenMME/AMF – Mobility, Registration

• AUSF – Authentication

• Namf. Step by step migration.

Gateways

AMF

OMEC 5GC Migration : Proposed phase 1 - MME to AMF

UPFeNB S1U

S1-MME

Sx

SGi

On-Premise (VPC)

SMF

Namf

Namf

OpenMME

Namf

OpenMME S11

UEUE

UE Approach to end state:1. Implement Namf REST interface on top of openMME2. Keep S1-MME/S1AP,S11 unchanged 3. Next phase : implement N1/N2 - NGAP

OMEC 5GC Migration : Proposed phase 2 – Extending SBA

UPFgNB S1U

N1/N2

Sx

SGi

On-Premise (VPC)

SMF

Namf

Namf

OpenMME

Namf

OpenMME S11

UEUE

UE Approach to End State:1. Implement N1/N2 NGAP (SCTP) in openMME2. Keep S1-MME/S1AP,S11 unchanged

Thank you!

www.gslab.comhttps://github.com/omec-project

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