차세대 이동통신 네트워크 관리기술

차세대 이동통신 네트워크 관리기술

2010. 03. 25

I. 이동통신 기술 진화

II. 무선 접속 기술 비교

III. IMT-Advanced Overview

IV. 무선 네트워크 구성도

V. 망관리 표준기술 동향

VI. 3GPP SA5 Features (Rel. 8 ~ Rel. 10)

VII. 차세대 네트워크 관리 고려사항

Contents


OFDM 기술(Orthogonal Frequency Division Multiplexing)

LTE

4G

1980

AMPS GSMCDMA GPRS

CDMA 1x

WCDMAEVDO

EVDO-rev A

EVDO-rev B

HSPA+

10

1

1,000

10,000

100

100,000

HSPA

WiMAX R 2.0

WiMAX R 1.x

Th

rou

gh

pu

t (K

bp

s)

1985 1990 1995 2000 2005 2010

▣ 3.9G 이통시장은 LTE 주도 예상 (북미, 유럽, 아시아 주요 사업자 LTE/LTE-Advanced 진화지지)

▣ LTE 상용화 2012년 예상 (상용망 2010년, 데이터카드 단말 2011년, 핸드셋 단말 2012년 예상)

▣ 4G후보기술 3GPP LTE-A 및 802.16m 표준화 진행중


▣ 북미 표준(3GPP2] UMB 포기에 따른 진화 단절주요 CDMA 사업자 LTE 진화 예상

• High Speed Internet• Streaming Video• Mobile TV• Video/Music Download

• Video Conferencing• MBMS• VoIP• Interactive Gaming

• Real Time InteractiveGaming

• HDTV...

Service Evolution

1G(Analog) 2G 3G

GPRS EDGE

2.5G

GSM HSCSD

JTACS

WCDMA(R99, R4)

HSPA(R5, R6)

IS-54 IS-136

TACS

NMT-450NMT-900

PDC PDC+

IS-95A IS-95B cdma 2000-1x(IS-95C)

1x EVDO Rev 0

EVDO Rev A

• GSM: 8~900M 대역•DCS-1800: 1.8G 대역• PCS-1900: 1.9G 대역

cdmaOne (BW: 1.25M) cdma 2000-1x (BW: 1.25MHz)

WCDMA (BW: 5MHz)

• 1996• celluar:9.6k• PCS:14.4k

•1999•64kbps

• 2000• 153.6 / 307kbps

• 2002• DL:2.4Mbps• UL:153kbps

• DL:3.1Mbps• UL:1.8Mbps

• 1991, AMPS와동일대역(Dual mode 동작 )

•1993• 9.6kbps•GMSK

•1998• 57.6kbps

북미

유럽

• 2000• 115kbps

• 1999~2003• 2Mbps(384kbps)

• DL: 14.4Mbps• UL: 5.76Mbps

• 1993• 9.6kbps• ?/4-DQPSK

• 800MHz 대역

• 1983• BW: 30kHz• FM

• 900MHz 대역

EVDORev B

HSPA+(R7)

3.5G

• 2001• DL/UL:474kbps• 3?/8-rot 8PSK

•1985 •BW: 25kHz

EnhancedEDGE

• DL:14.7Mbps• UL:4.9Mbps

UMB(EVDO RevC)

• DL>100Mbps• UL> 50Mbps• OFDM/MIMO

(BW: 5MHz) (BW: 20MHz)

GSM/GPRS (BW: 200kHz, Total 25MHz)

•CDMA BasedMIMO

• DL> 28Mbps• DL>11.5Mbps

• DL: 1.3Mbps• UL: 653kbps

~

LTE(R8/R9)

3.9G

•OFDM BasedMIMO

•DL: 173Mbps•UL: 86Mbps

Mobile WiMax Waves 1 & 2(IEEE802.16e)

Mobile WiMax(IEEE802.16m)Fixed WiMax •DL: 128Mbps

•UL: 96Mbps•DL: 23~48Mbps•UL: 4~10Mbps(for TDD 3:1, 10M BW)

(BW: flexible)

IEEE802.16a

(BW: flexible)

4G

IMT-Advance

일본

CDMATDMAFDMA

OFDMA

3GPP

3GPP2

IEEE 802.16x

AMPS

(BW: flexible)

4

HSPA HSPA+ WiMAX wave2 LTE WiMAX 802.16m

Bandwidth(MHz) 5 5 5, 7, 8.75, 10 1.4, 3, 5, 10, 15, 20 5, 7, 8.75, 10, 20, 40

Multiple Access CDMA CDMA OFDMA OFDM/SC-FDMA OFDMA

Duplex FDD FDD TDD FDD FDD, TDD

MIMO - MIMO(2x2, 4x4) MIMO(2x2, 4x4) MIMO(2x2, 4x4) MIMO(2x2,4x4,8x8)

Peak Modulation(DL/UL)& Coding

16QAM / QPSKTurbo Code/HARQ

64QAM / 16QAMTurbo Code/HARQ

64QAM/16QAMTurbo Code/HARQ

64QAM/64QAMTurbo Code/ HARQ

64QAM/64QAMTurbo Code/ HARQ

Latency (TTI ms) 2ms 2ms 5ms 1ms 5ms

DL Peak Data Rate 14.4Mbps 28Mbps40Mbps

(10MHz, 2x2 MIMO)(DL:UL = 2:1)

172.8Mbps(20MHz, 2x2MIMO) 326.4Mbps

(20MHz, 4x4MIMO)

160Mbps(20MHz, 2x2MIMO)


UL Peak Data Rate 5.76Mbps 11.52Mbps13Mbps

(10MHz, 1x2MIMO)(DL:UL = 2:1)

86.4Mbps(20MHz, 1x2MIMO)




Service CS & PS CS & PS PS & Voice(VoIP) PS & Voice(VoIP) PS & Voice(VoIP)

Mobility Up to 350Km Up to 350Km Up to 120Km Up to 350Km Up to 350Km

NetworkArchitecture

• MIMO : Multi Input Multi Output• FDD : Frequency Division Duplex• TDD : Tine Division Duplex

• MSV : MSC server • GGSN : General GPRS Support Node• SGSN: Serving GPRS Support Node

• ACR : Access Control Router• RAS : Radio Access Station• S-GW : Serving Gateway

• MME : Mobile Management Equipment• eNode B : Evolved Node B• RNC : Radio Network Controller

▣ LTE 사용자 데이터 속도는 HSPA(3G) 대비 ~10배 증가 (하향링크 기준)

GGSNSGSNRNC

Node BTraditional

MSV GGSNSGSN

RNCNode B

Direct Turnnel

MSV ACR

RAS

S-GWMME

eNode BCollapsed

ACR

RAS

: Signaling : Traffic

II. 무선 접속 기술 비교

Interconnection

IMT-2000

Mobility

Low

High

1 10 100 1000Peak useful data rate (Mbit/s)

EnhancedIMT-2000

Enhancement

IMT-2000

Mobility

Low

High

1 10 100 1000

Enhanced

IMT-2000

Enhancement

Digital Broadcast Systems

Nomadic / Local Area Access Systems

New Nomadic/Local

Area Wireless Access

Systems beyond IMT-2000 will encompass the capabilities of previous systems

New capabilitiesof systems

beyond IMT-2000

Dashed line indicates that the exact data rates associated with systems beyond IMT-2000 are not yet determined

New

Mobile Access

Short Range

Connectivity

Packet-Based

Core Network

Services and

Applications

IMT-2000

Cellular

2nd. Gen.

Digital

Broadcast

New Radio

Interface

Wireline

XDSL

WLAN

Type

Other

Entities

Download

Channel

Return

Channel,

e.g. cellular

Peak Data Rate

- New Mobile Access: 100Mbps

- New Nomadic/Local Area Wireless Access: 1 Gbps

Seamless future network

including a variety of interworking access systems

* Source: RECOMMENDATION ITU-R M.1645 (2003)

Capabilities of IMT-2000 and IMT-AdvancedCapabilities of IMT-2000 and IMT-Advanced Packet-Based Core NetworkPacket-Based Core Network



Rel.8 Rel.9 Rel.10

▣ 3GPP LTE-Advanced는 2009년10월까지 기술안 제출, 2010년6월까지 평가(Evaluation), 2010년10월까지 합의도

출을 거쳐서 2011년초에 최종규격화 예정임

▣ LTE-Advanced는 LTE의 evolution 형태로 ITU-R 일정에 맞추어 IMT-Advanced 요구사항을 충족시킬 예정임

관련규격 TR36.913 “Requirements for Further Advancements for E-UTRA(LTE-Advanced)”

2008 2009 2010 2011

3GPP RAN

LTE-A

ITU-R WP5D

IMT-A

Study Item for LTE-advanced Work Item for LTE-advanced

Proposal

Evaluation

Consensus

Specification

최종안제출(10월) 규격완성(2월)평가보고서(6월)

IMT-Advanced 개발일정

7


WCDMA 네트워크

발신단말

발신NodeB

SGSN

RNC RNC착신NodeB

InternetmIDC

착신단말

발신MSC착신MSC

HLR

PGS Roaming Gateway

RAN EMS

CS구간

IP구간

중계기

• MSC : Mobile Switching Center • RNC : Radio Network Controller• NodeB : Base Transceiver Station• HLR : Home Location Register• SGSN : Serving GPRS Support Node

8


WiMAX (WIBRO) 네트워크

•ACR : Access Control Router•RAS : Radio Access Station•PSS : Portable Subscriber Station

•EMS : WiBro ACR/RAS 통합 EMS•AAA : Authentication, Authorization, Accounting•HA : Home Agent

Wireless Network Core Network Application ServerAccess Network

PremiumNetwork

RAS ACR

EMSEdgeRouter

CoreRouter

L2 switch

AAA

DNS

HA

Repeater

PSS

PSS

PSSEdgeRouter

EdgeRouter

Public IP망

PSG


LTE 네트워크 (EPC Network Architecture) – Non Roaming Architecture

• MME : Mobility Management Entity• S-GW : Serving Gateway• P-GW : PDN Gateway• eNodeB : evolved NodeB

• PDN-GW : Packet Data Network Gateway• IMS : IP Multimedia Subsystem• PCRF : Policy and Charging Rule Function• EPC : Evolved Packet Core

V. 망관리 표준기술 동향 - TeleManagement Model

Network and Systems Management ProcessesNetwork and Systems Management Processes

Service Development and Operations ProcessesService Development and Operations Processes

Business & Customer Care ProcessesBusiness & Customer Care Processes

Marketing

Sales

Order

Handling

Service Planning/

Development

Service Configuration

Service Problem

ResolutionService Quality Management

Problem Handling

Customer QoS Management

Network Planning/

DevelopmentNetwork

ProvisioningNetwork Inventory

Management

Network Maintenance &

Restoration

Customer Interface ManagementCustomer Interface Management ProcessProcess

Invoicing/ Collections

Rating and Discounting

Network Data Management

ERPDecision

Support

Physical Network & Information Technology

Fulfillment Assurance Billing

TeleManagement Forum Business Process Framework eTOM Model

eTOM adopted by ITU-T, recommendation M.3050.x series

11

V. 망관리 표준기술 동향 - 3GPP

3GPP TSG Working Group

TSG

TSG-SA TSG-CN TSG-RANTSG-GERAN TSG-T

SA 1• Services

SA 2• Architecture

SA 3 • Security

SA 4• CODEC

SA 5• Telecom

Management

CN 1• MM/CC/SM (Iu)

CN 2• CAMEL

CN 3 • Interworking with

external networks CN 4

• MAP/GTP/ BCH/SS CN 5

• OSA

RAN 1• Radio layer 1

RAN 2• Radio layer 2/3

RAN 3 • Iur/Iub/Iu/O&M

RAN 4• Performance &

protocol• RF / BS CT

GERAN 1• Radio

GERAN 2• Protocol

GERAN 3 • BS test O&M

GERAN 4• Terminal Rad.

GERAN• Terminal Prot.

T 1• Terminal

CT T 2

• Service & capabilities

T 3 • USIM

TSG-SA 5 그룹에서 3GPP 망 관리 표준화를 담당

12

3GPP Release Roadmap

Overview

–3GPP 에서는 Release 라는 형태로 규격을 짧게는 1년, 길게는 3년 단위로 작성/배포

–1999년이후 2008년까지 6개의 Release 를 배포

– Release-9 는 당초 LTE에서 구현하고자 하였으나 기술적 복잡도 및 일정문제로 미뤄진 것으로 2010년 완성을

목표로 하고 있슴

– Release 10 에는 LTE-Advanced 를 구현하는 것이며 현재 연구 단계임

–한국에서 운용중인 WCDMA 망은 Release-5 에 기반

R99 (Dec. 1999)-CS and PS-MMS-Locations- Services etc

Rel-4 (Mar. 2001)-LCR-TDD-etc Rel-5 (Mar. 2002)

-HSDPA-IMS-AMR-WB

Rel-6 (Mar. 2005)-Enhanced Uplink- MBMS-WLAN-UTMS Interworking

Rel-7 (2006)-HSPA+

Rel-8 (2008)-LTE, SAE

Rel-9 (2010)-LTE, SAE Update Rel-10 (2011)

-LTE-Advanced


13

Solution Set Definitions (CMIP/SOAP/XML)

3GPP IRP Concept

Overview

–3GPP 에서는 기술변화에 유연하게 대처할 수 있도록 IRP를 3가지 level로분리함

–Level1 에서는 IRP 요구사항을 기술

–Level2 에서는 IRP의 추상화 된 object model 을 작성 (예: Information service)

–Level3 에서는 실제 구현에 필요한 solution set 을 기술 (예: CORBA SS의 경우 IDL . SOAP SS의 경우 WSDL)

Requirements / Use Cases

IS Definition (UML)

Interface IRP’s- Notification IRP- Alarm IRP- BulkCM IRP- BasicCM IRP-PM IRP…

NRM IRP’s- Generic NRM- CoreNW NRM

Date Def IRP’s- State Management IRP

Solution Set Definitions (CORBA)

Relative stable over long Period of time

Changes only withRespect to addition

and extensions

Changes withNew/better technologies


14

3GPP TSA-SA5 IRPs (Release 9 기준)

Specifications/Reports

TS 32.106-X Telecommunication management; Configuration Management (CM)

TS 32.111-X Telecommunication management; Fault Management : Alarm Integration Reference Point (IRP)

TS 32.12X Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP)

TS 32.15X Telecommunication management; Integration Reference Point (IRP) Concept

TS 32.17X Telecommunication management; Subscription Management (SuM) Network Resource Model (NRM)

TS 32.30X Telecommunication management; Configuration Management (CM); Notification Integration Reference Point (IRP)

TS 32.31X Telecommunication management; Generic Integration Reference Point (IRP) management

TS 32.32X Telecommunication management; Test management Integration Reference Point (IRP)

TS 32.33X Telecommunication management; Notification Log (NL) Integration Reference Point (IRP)

TS 32.34X Telecommunication management; File Transfer (FT) Integration Reference Point (IRP)

TS 32.35X Telecommunication management; Communication Surveillance (CS) Integration Reference Point (IRP)

TS 32.36X Telecommunication management; Entry Point (EP) Integration Reference Point (IRP)

TS 32.37X Telecommunication management; Security services for Integration Reference Point (IRP)

TS 32.38X Telecommunication management; Partial Suspension of Itf-N Integration Reference Point (IRP)

TS 32.39X Telecommunication management; Delta synchronization Integration Reference Point (IRP)

TS 32.41X Telecommunication management; Performance Management (PM) Integration Reference Point (IRP)

TS 32.44X Telecommunication management; Trace Management Integration Reference Point (IRP)

TS 32.50X Telecommunication management; Self-Configuration of Network Elements Integration Reference Point (IRP)

TS 32.53X Telecommunication management; Software management Integration Reference Point (IRP)

TS 32.60X Telecommunication management; Configuration Management (CM); Basic CM Integration Reference Point (IRP)

TS 32.61X Telecommunication management; Configuration Management (CM); Bulk CM Integration Reference Point (IRP)

TS 32.62X Telecommunication management; Configuration Management (CM); Generic network resources Integration Reference Point (IRP)

TS 32.63X Telecommunication management; Configuration Management (CM); Core Network Resources Integration Reference Point (IRP)


15

3GPP TSA-SA5 IRPs (Release 9 기준) - Cont.

Specifications/Reports

TS 32.64X Telecommunication management; Configuration Management (CM); UTRAN network resources Integration Reference Point (IRP)

TS 32.65X Telecommunication management; Configuration Management (CM); GERAN network resources Integration Reference Point (IRP)

TS 32.66X Telecommunication management; Configuration Management (CM); Kernel CM Integration Reference Point (IRP);

TS 32.67X Telecommunication management; Configuration Management (CM); State Management Integration Reference Point (IRP)

TS 32.69X Telecommunication management; Inventory Management (IM) network resources Integration Reference Point (IRP)

TS 32.71X Telecommunication management; Configuration Management (CM); Transport Network (TN) Network Resource Model (NRM) Integration Reference Point (IRP);

TS 32.72X Telecommunication management; Configuration Management (CM); Repeater network resources Integration Reference Point (IRP)

TS 32.73X Telecommunication management; IP Multimedia Subsystem (IMS) Network Resource Model (NRM) Integration Reference Point (IRP)

TS 32.74X Telecommunication management; Configuration Management (CM); Signalling Transport Network (STN) interface Network Resource Model (NRM) Integration Reference Point (IRP)

TS 32.75X Telecommunication management; Evolved Packet Core (EPC) Network Resource Model (NRM) Integration Reference Point (IRP)

TS 32.76X Telecommunication management; Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Network Resource Model (NRM) Integration Reference Point (IRP);

TS 32.77X Telecommunication management; Home Node B (HNB) Subsystem (HNS) Network Resource Model (NRM) Integration Reference Point (IRP)

TS 32.78X Telecommunication management; Home enhanced Node B (HeNB) Subsystem (HeNS) Network Resource Model (NRM) Integration Reference Point (IRP)


VI. 3GPP SA5 Features (Release 8)

16

Advanced Alarming on Itf-N (AAM)

Overview

–신호망/전송로 장애와 같이 특정 alarm이 연관 alarm을 다수 유발하는 경우에 alarm이 대량 발생하여 IRP manager와

IRP agent에모두 부하를 발생하며 alarm의 root cause 분석이 어려운 문제가 있슴

– IRP agent에설정 가능한 rule 기반의 alarm filtering 과 같은 제어 operation 추가

–Rel-8 에는 CORBA SS만 추가됨

Requirement

–Define requirements and methods to improve the information content of alarms (e.g. to help identify the root cause of an alarm and the instances affected by it), thereby contributing to reduce the time-to-repair.

–Define configurable rules for advanced alarm filtering and reducing the number of alarms by applying such advanced alarm filtering.

New Dedicated Specifications/Reports

TS 32.121 Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP); Requirements

TS 32.122 Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP); Information Service (IS)

TS 32.123 Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP); Common Object Request Broker Architecture (CORBA) Solution Set (SS)


17

Alignment with eTOM and M.3060 architectural concepts

현황

–기존 Mobile Network의 ITU-T 표준은 TMN 기반의 M.3010과 초기 TMForum의 Telecom Operation Map (TOM) 에

기반하여 작성됨

–TMForum에 의해 발표된 eTOM (Extended TOM) 은 차세대통신망(NGN)을 서비스지향 아키텍쳐(SOA)로 모델링 하여

네트워크 서비스와 비즈니스 프로세스를 개선하고 운용비용을 절감하고자 하는 목적으로 제안된 것으로

기존의 TOM 모델을 대체하여 많은 통신사업자들에게 지지를 받고 있슴

–Rel-8 에서는 ITU-T eTOM 모델 및 ETSI NGN OSS 표준안에 맞추어 기존 TM high level design spec 이 변경됨

Impacted Specifications

TS32.101Telecommunication management; Principles and high level requirements (Update Telecom Operation Map references)

TS32.102 Telecommunication management; Architecture (Update of ITU-T TMN NGNM architectural concepts)


18

IRP SOAP Solution Set

Overview

–기존 SA5 IRP 규격에서는 CORBA와 CMIP 의 SS가 제안되어 있슴 ( CMIP SS는 Rel-6 이후 업데이트 중단)

–SOAP SS가 Subscription IRP를 제외한 모든 IRP에 추가 적용됨

–Rel-8 에는 CORBA SS만 추가됨


TS 32.111-7 Alarm IRP SOAP SS

TS 32.617 Bulk CM IRP SOAP SS

TS 32.417 Performance Management (PM) IRP SOAP SS

TS 32.367 Entry Point (EP) IRP SOAP SS

TS 32.347 File Transfer (FT) IRP SOAP SS


19

IP bearer network Performance measurement definition

Overview

–All IP network 도입에 따른 RNC,SGSN,GGSN,MGW,MSC 간의 IP network의 품질측정의 중요성이 대두됨

–기존 TestIRP (TS.32.32X) 에서 IP 품질측정 counter (jitter, time delay, packet loss) 등을 추가하여 갱신함


TS 32.321 Telecommunication management; Test management Integration Reference Point (IRP); Requirements

TS 32.322 Telecommunication management; Test management Integration Reference Point (IRP); Information Service

TS 32.323 Telecommunication management; Test management Integration Reference Point (IRP); CORBA Solution Set

TS 32.325 Telecommunication management; Test management Integration Reference Point (IRP); XML definitions

HSUPA performance measurements

Overview

–HSUPA 는 상향링크 데이터 속도를 5.8Mbps로 향상한 것으로 Release-6 에서 표준화 됨

–HSUPA 도입에 따라 기존 UTRAN MAC에 MAC-es / MAC-e 등이 추가됨

–HSUPA 성능측정 counter를추가 반영하기 위해 TS32.405 가 update 됨


TS 32.405 Telecommunication management; Performance Management (PM); Performance measurements Universal Terrestrial Radio Access Network (UTRAN)


20

Key Performance Indicators (KPIs) for UMTS/GERAN

Overview

–KPI (Key Performance Index)는 operator가 network를 monitor 하는 데 매우 중요한 요소로 자리잡고 있으나

각 vendor 와 operator 별로 독자적인 기준으로 KPI를 설정하고 있는 것이 현실 (예: success ratio, drop ratio 등)

–독자적인 KPI 운용에 따라 다른 vendor / operator 간 network 품질을 측정하기가 어렵고 불공정한 문제가 발생함

–망 품질측정을 위한 KPI 들을 정의하기 위한 표준 작성 필요

–현재 3GPP 에서 정의된 성능 측정 관련 규격은 아래와 같으며 위 규격을 기반으로 KPI 표준화 작업

– TS 52.402 Performance Management (PM); Performance measurements – GSM

–TS 32.404 Performance Management (PM); Performance measurements - Definitions and template

–TS 32.405 Performance Management (PM); Performance measurements UTRAN

–TS 32.406 Performance Management (PM); Performance measurements Core Network PS domain

–TS 32.407 Performance Management (PM); Performance measurements Core Network CS domain

–TS 32.408 Performance Management (PM); Performance measurements Teleservice

–TS 32.409 Performance Management (PM); Performance measurements IP Multimedia Subsystem (IMS)


TS 32.410 Telecommunication management; Key Performance Indicators (KPI) for UMTS and GSM


21

Create missing specifications for IRP XML definitions

Overview

–Advanced Alarm Management (AAM), Communication Surveillance (CS), Self Configuration of Network Management,

Software Management IRP들에 대한 XML 정의 규격 추가 및 보완

- Release-9 에서 진행되는 “IRP SOAP Solution Sets continuation from Rel-8” 에서 SOAP SS를 완성하는 데 필요함


TS 32.150 Telecommunication management; Integration Reference Point (IRP) Concept and definitions

TS 32.153 Telecommunication management; Integration Reference Point (IRP) technology specific templates, rules and guidelines

TS 32.335 Telecommunication management; Notification Log (NL) Integration Reference Point (IRP); eXtensible Markup Language (XML) solutiondefinitions


TS 32.125 Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP); XML definitions

TS 32.355 Telecommunication management; Communication Surveillance (CS) Integration Reference Point (IRP) ; XML definitions

TS 32.505 Telecommunication management; Self-Configuration of Network Elements Integration Reference Point (IRP) ; XML definitions

TS 32.535 Telecommunication management; Software management Integration Reference Point (IRP) ; XML definitions


22

Software Management for Network Elements


TS 32.531 Telecommunication management; Software management concepts and IRP requirements

TS 32.532 Telecommunication management; Software management IRP Information Service

TS 32.533 Telecommunication management; Software management IRP; CORBA Solution Set

TS 32.537 Telecommunication management; Software management IRP; SOAP Solution Set

Overview

–지역적으로 광범위하게 위치하는 다수의 NE에 대한 Software 관리를 위한 IRP 추가 보완

–Rel-9 에서는 non-automated software management 를 제공하며 Rel-8 에서 정의된 automated software management 와

상호 보완 역할을 함

Requirement

–Define appropriate IRP requirement specifications for Software Management

–Define Information Service (IS) specifications related to Software Management

–Define Solution Set (SS) specifications for Software Management over CORBA and SOAP

Functionality

–Downloading software

–Installation of software

–Activation of software

–Backup and Restore of software

–Fallback of software

–Validation and Terminate Validation operations on software


23

Service Oriented Architecture (SOA) for IRP

Overview

–Service Oriented Architecture (SOA)는 IT 계에 호응을 얻고 있는 개념이며 SOA 개념을 추가 적용

–3GPP와 3GPP2에 의해 도입된 IRP는 2000년이후부터 mobile network 관리 표준으로서의 위치를 점유하고 있으며

SOA환경에서 적용이 될 수 있는 유연성이 있슴

- 개별 IRP 들은 아래 SOA 관련 요구사항을 수용할 수 있도록 진화될 것으로 예상

Requirement

–support of SOA infrastructure in Telecom management; Principles and high level requirements (TS 32.101)

–descriptions of a) SOA infrastructure and b) relationship between SOA infrastructure and IRP Architecture in TS 32.102 and TS 32.150


TS 32.101 Telecommunication management; Principles and high level requirements

TS 32.102 Telecommunication management; Architecture

TS 32.150 Telecommunication management; Integration Reference Point (IRP) Concept and definitions


24

IRP SOAP Solution Sets continuation from Rel-8

Overview

–Rel-8 에서 도입된 SOAP SS 에 대한 추가 완성 작업

–아래 IRP 들에 대해 SOAP SS가 추가됨

• Advanced Alarm Management IRP

• Test Management IRP

• Notification Log IRP

• Communication Surveillance IRP

• Partial Suspension of Itf-N IRP

• Delta Synchronization IRP

• Trace Management IRP


TS 32.127 Telecommunication management; Advanced Alarm Management (AAM) Integration Reference Point (IRP); SOAP solution set

TS 32.327 Telecommunication management; Test management Integration Reference Point (IRP); SOAP Solution Set (SS)

TS 32.337 Telecommunication management; Notification Log (NL) Integration Reference Point (IRP); SOAP Solution Set (SS)

TS 32.357 Telecommunication management; Communication Surveillance (CS) Integration Reference Point (IRP); SOAP Solution Set (SS)

TS 32.387 Telecommunication management; Partial Suspension of Itf-N Integration Reference Point (IRP); SOAP Solution Set (SS)

TS 32.397 Telecommunication management; Delta synchronization Integration Reference Point (IRP); SOAP Solution Set (SS)

TS 32.447 Telecommunication management; Trace Management Integration Reference Point (IRP): SOAP Solution Set (SS)


25

Enhancement of performance measurements for E-UTRAN

Overview

–Evolved UTRAN (E-UTRAN) Performance Measurement는 Rel-8 에서 define 되었으나 빠진 부분을 추가 보완

–Manual optimization (interference control, coverage, capacity) 및 SON (Self Optimization Network) 에 대한 PM 부분을 추가

–Macro eNodeB 와 Home eNodeB 에 대한 PM 도 포함


TS 32.425 Telecommunication management; Performance Management (PM); Performance measurements Evolved Universal Terrestrial Radio Access Network (E-UTRAN)

Enhancement of EPC Performance Measurements

Overview

–Evolved Packet Core (EPC) network의 Performance Measurement는 Rel-8 에서 define 되었으나 빠진 부분을 추가 보완


TS 32.426 Telecommunication management; Performance Management (PM); Performance measurements Evolved Packet Core (EPC) network


26

Enhancement of UTRAN Performance Measurements

Overview

–UE 와 UTRAN 간의 air interface 의 측정 자료 수집 및 분석이 요구됨

–TS32.405 에 정의된 MEASUREMENT REPORT 메시지를 분석 (UENodeBRNCNMS)

–측정 REPORT 데이터를 수집하기 위해 PDF (Probability Distribution Function) 이라는 수집 방법이 정의됨


TS 32.405 Telecommunication management; Performance Management (PM); Performance measurements Universal Terrestrial Radio Access Network (UTRAN)


27

Automatic Radio Network Configuration Data Preparation

Overview

–eNodeB가추가로 증설되는 경우 몇 몇 파라미터는 기존 eNodeB 파라미터와 상호 연관되므로 사전 값 설정이 불가함

–Dynamic Radio Network Configuration Data Preparation 은 추가되는 NE뿐 아니라 기존 NE의 파라미터도 자동 조정이

되어 operator 가 수동으로 parameter를 설정할 필요 없이 완전한 self establishment 가 가능하게 하는 것이 목적임

- Automatic Configuration 기능을 제공하기 위한 Information Service (IS)와 Solution Set (SS)를 제공

Requirement

• Analyzes which configuration parameter cannot be determined before-hand by the IRPAgent or by the self-configuration process and what input might be needed to generate them.

• Defines new functionality to trigger distribution of such parameters. This functionality fits to the existing self-configuration functionalities and re-uses existing IRPs, wherever possible.


TS 32.501 Telecommunication management; Self-Configuration of Network Elements; Concepts and Integration Reference Point (IRP) Requirements

TS 32.502 Telecommunication management; Self-Configuration of Network Elements Integration Reference Point (IRP); Information Service (IS)

TS 32.503 Telecommunication management; Self-Configuration of Network Elements Integration Reference Point (IRP); Common Object Request Broker Architecture (CORBA) Solution Set (SS)


28

Subscription Management (SuM) evolution

Overview

–3GPP SuM 규격은 service management layer 의 제한된 부분을 정의 ( 주로 resource layer management 에 초점 )

–아직은 Customer / user / subscriber domain 과의 연계성 부족

- 3GPP SuM 규격을 진화시켜 service 관리 기능을 향상시키는 것이 목적임


TS 32.140 Telecommunication management; Subscription Management (SuM) requirements

TS 32.141 Telecommunication management; Subscription Management (SuM) architecture

TS 32.152 Telecommunication management; Integration Reference Point (IRP) Information Service (IS) Unified Modelling Language (UML) repertoire

TS 32.172 Telecommunication management; Subscription Management (SuM) Network Resource Model (NRM) Integration Reference Point (IRP): Information Service (IS)

TS 32.175 Telecommunication management; Subscription Management (SuM) Network Resource Model (NRM) Integration Reference Point (IRP): eXtensible Markup Language (XML) definition


29

SON self-optimization management

Overview

–SON 은 operator의개입을 최소화 하여 NE가 자체적으로 network 를 self optimization 하는 것을 목적으로 함

–Home NodeB 와 같이 operator 관리가 어렵거나 장비 대수가 많아 network planning 이 어려운 상황에 유용

–SON 의 scope 는 아래와 같다.

• Load balancing

• Handover Parameter optimization

• Interference control

• Capacity and coverage optimization

• RACH optimization

Requirement

• collect and document self-optimization OAM requirements for SON.

• define (in cooperation with RAN WGs) inputs to and outputs from the self-optimization Entity, its location in the management architecture, and the degree of standardization of the associated algorithms.

• identify and document required self-optimization related additions to the affected specifications.

• ensure that the OAM specifications support load balancing, HandOver (HO) parameter optimization, interference control, capacity and coverage optimization and RACH optimization.


TS 32.425 Telecommunication management; Performance Management (PM); Performance measurements Evolved Universal Terrestrial Radio Access Network (E-UTRAN)


TS 32.521 Telecommunication management; Self-Organizing Networks (SON); Self-optimization; Concepts and requirements

TS 32.522 Telecommunication management; Self-Organizing Networks (SON); Self-optimization; Stage 2

TS 32.523 Telecommunication management; Self-Organizing Networks (SON); Self-optimization; Stage 3


30

Study on Telecommunication Management; Energy Savings Management (ESM)

Overview

–Global Warming 에 의한 탄소 배출 절감 및 전력소비 절감 요구사항이 각 기업체에 요구됨

- LTE 와 같은 RAN 에서 네트워크의 사용량 측정에 따라 유연하게 Tx Power 조절하거나 cell 을 on/off 할 수 있는 자동화된

전력관리 기능을 연구 중

Requirement

–Retrieval of energy consumption measurements

–Retrieval of traffic load measurements

–Adjust Network Resources capabilities

Study on Integration of Device Management Information with Itf-N

Overview

–DMS (Device Management Server)에서사용자단말(UE) 의 품질측정 및 로그 분석 등을 위한 Itf-N 정의 필요

- Broadband Forum에서는 TR-069 규격을 이용한 Itf-N 작업 중이나 아직 완료되지 않은 상태

Requirement

– UE subscriber profile configuration over Itf-N. Includes protocol definition and data model;

– Collection of UE measurements over Itf-N. Includes protocol definition over Itf-N and study of appropriate UE measurements defined in RAN WGs;

– Retrieval of UE logs over Itf-N. Includes file format definition over Itf-N and study of appropriate solutions for log retrieval over Itf-N;


31

Study on Alignment of 3GPP Generic NRM IRP and TMF Shared Information Data (SID) model

Overview

–3GPP에서는 mobile network 관리를 위한 Network Resource Models (NRMs)를 개발 및 규격화 함

- TMForum에서는 fixed network 관리를 위해 Shared Information Data Model (SID)를 만들어 발전시킴

- 두 기관의 NRM과 SID를 각각 발전시켜 mobile 과 fixed network의 통합되고 일관된 관리모델의 진화방안을 연구함

Study on Harmonization of 3GPP Alarm IRP and TMF Interface Program (TIP) Fault Management

Overview

–3GPP에서는 alarm 관리를 위해 Alarm IRP를 규격화 하여 제공

–TMF에서는 alarm 관리를 위해 MTOSI와 OSSJ를 제공하며 TMF TIP으로 통합 예정

–3GPP와 TMF에서 alarm 관리를 위한 통합되고 일관된 관리방법을 제공하는 것을 연구함


32

차세대 OSS 고려사항

기존 네트워크 차세대 네트워크

Alarm / 성능데이터획득및표현에초점 장애 및 품질저하의 원인을 빨리 파악할 수 있도록 지능화

Network 에따라개별적 NMS 구축및운용 유무선 통합 추세에 따른 일원화된 OSS 구축

Network 의장애신속탐지및복구중시 트래픽을 분석하여 가입자의 사용 패턴 및 서비스를 파악(서비스 품질 분석 및 감시가 점차 중요해 짐)

사업자가설정한독자기준에따른 KPI 관리 국제 표준에 의해 정의된 KPI 적용

네트워크조기구축 / 품질유지에초점 OPEX 최소화에 초점 (SON 등 운용자 개입 최소화)

NE 에서제공하는통계활용분석 Probing Solution을 통한 가입자 단위의 체감 품질 분석(단말에서의 end-to-end 품질)

NOC 및교환실에서의사용환경에초점 SMART PHONE 등을 이용한 Mobile OSS 환경 지원

Network Element Management Device Management System 이 강조됨(가입자 댁내 장치 및 단말 원격 감시 및 제어)

Circuit Switching Network 와 Packet Switching Network 가혼재되어있음 All IP 네트워크로 transport layer와 서비스 layer 가계층적으로 구분됨 (예: LTE vs. IMS)

통신사업자가제공하는서비스 (Telco dependent service)-음성/영상호, SMS, MMS, WIPI, WAP, Ring back tone

가입자 지향 서비스 (Customer oriented service)- twitter, micro blogging, appstore, mobile web browsing


33

3GPP 규격 준용 시 고려사항

Overview

–Global Network Equipment vendor 의 EMS에서는 Itf-N 으로 3GPP IRP를 제공함

- IT 기술의 발전에 따라 3GPP Release 배포 시 신규 정합 Interface 가 추가되거나 제외되기도 함

예) CMIP 퇴출 및 SOAP/HTTP 추가

- 실제적으로 vendor에서 3GPP release 에 규정된 모든 IRP를 제공하지는 않으며 NMS에 연동에 필수적인 IRP를 주로 제공

- 현재 기준으로는 CORBA 를 주로 지원하며 SOAP 지원도 점진적으로 증가 추세임

관리 기능 관련 3GPP 규격 설명

장애관리 (FM) TS 32.111 Alarm Integration Reference Point (IRP) 장애 정보를 실시간 수집 가능 (CORBA, SOAP)

구성관리 (CM) TS 32.61X Bulk CM Integration Reference Point (IRP) EMS 가 제공하는 구성 정보 전체를 bulk get

성능관리 (PM) TS 32.41X Performance Management (PM) Integration Reference Point (IRP)

성능 통계 데이터 수집 (XML)

기본적인 FCAPS 구현 시 주로 참조되는 주요 규격


34

3GPP 와 Mobile WiMAX 네트워크 관리 규격 비교

Overview

–3GPP 에서는 네트워크 관리를 위한 별도 working group (TSG-SA5) 를 운영하여 관련 규격 들이 상대적으로

상세히 정의되어 있슴

- Mobile WiMAX 는 네트워크 관리에 대한 표준화 활동이 상대적으로 미약

구분 3GPP Mobile WiMAX

표준화 주관단체 3GPP (http://www.3gpp.org) WiMax Forum (http://www.wimaxforum.org)

OSS연동규격정의

Requirement, Object Modeling, Interface 규격 등을 상세하게정의및 규격화

Requirement 만 도출되어 있으며 명확히 규격화 하지않음

연동규격 CORBA, SOAP, CMIP, XML SOAP, CORBA, XML


35

Operation

Data

Source

Operation

Data

Collector

OSS

Infra

User

OSS

Service Service

Element

Service

Element

Monitoring Services

Real time Data Processing Infra

Infra

Element

Infra

Element

Service

Element

Service

Element

Infra

Element

Infra

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Infra

Element

Infra

Element

Infra

Element

Infra

Element

Infra

Element

Infra

Element

Operation Process Services

Business Process Processing Infra

Statistics & Analysis Services

Mass Data Processing Infra

Integrated UIIntegrated UI

Monitoring System Operation System Analysis System

Strategy plannerNetwork Quality Manager Network OperatorBusiness planner NOC Maintenance

Cooperator

Inter-systems Communication InfraI/F

Module

I/F

Module

Data Collection System

Wireless Circuit SignalTransport

IntelligentValue Added

Packet IPRepeater

Service

Nodes

BSC

RNC

BTS

NodeB

PCX

MSC

IMX

PGS

IPGS

SSP

PDSN

SGSN

GGSN

IWF

IAGW

STPHLR

AAA

CDA

IWF

IPAS

IPLS

...

SCP

SMS

DSCP

MPC

IP

DCS

MUX

SMSC

LMSC

CBMC

NPS

VMS

CCS

...

Repeater

ICR

IER

Router

Switch

Hub

TerminalOperator

OSSProbe

Terminal CP

Data

Ware

Housing

CRM Billing …. …

CCS / BSS

OSS NetworkOSS NetworkIT NetworkIT Network

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Infra

Element

Infra

Element

Infra

Element

Infra

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Service

Element

Infra

Element

Infra

Element

Infra

Element

Infra

Element

I/F

Module

I/F

Module

I/F

Module

I/F

Module

I/F

Module

I/F

Module

Integration Model

Appendix . Terminology

36

IRP : Interface Reference Point

IS : Information Service

SS : Solution Set

Itf-N : Interface N or Northbound Interface

NRM : Network Resource Model

IMS : IP Multimedia Subsystem

MGW : Media Gateway

MSC : Mobile Switching Center

HNB : Home NodeB

EPC : Evolved Packer Core

EUTRAN : Evolved UMTS Terrestrial Radio Network

GERAN : GSM/EDGE Radio Access Network

SON : Self Organizing Network

ITU : International Telecommunication Union

TMForum : Telecommunication Management Forum

ETSI : European Telecommunication Standard Institute

LTE : Long Term Evolution

TSG : Technical Specification Group

차세대 이동통신 네트워크 관리기술

Documents