Overview of DoCoMo's Present Network Operations ... - apnoms
Post on 05-Feb-2023
0 Views
Preview:
Transcript
NTT DoCoMo Inc. Confidential and Proprietary
Overview of Overview of DoCoMoDoCoMo’’s s Present Present Network Operations Network Operations
&&Introduction of Developing Network Introduction of Developing Network
Operation SystemOperation SystemSatoshi OYAMADASatoshi OYAMADA
Network Management Development DepartmentNetwork Management Development DepartmentNTT DoCoMo, Inc.NTT DoCoMo, Inc.
EE--mail: mail: oyamadasoyamadas@@nttdocomonttdocomo.co..co.jpjp
1
NTT DoCoMo Inc. Confidential and Proprietary
Outline
Topic 1) Overview of DoCoMo’s Network Operations- Progress of Mobile Communication Network
- OSS Architecture
- Network Management
- Network Provisioning
- Network Element Management
Topic 2) Introduction of Developing New System- Background & Objectives
- System Configuration
- Effects
2
NTT DoCoMo Inc. Confidential and Proprietary
Progress of Japanese Mobile Network
1G: Analog1G: Analog
2G: Digital (PDC)2G: Digital (PDC)
3G: IMT-2000 (W-CDMA)3G: IMT-2000 (W-CDMA)
Voice & data(e.g. DoPa in 1996 ,
i-mode in 1999)
Voice
Multimedia service and high speed data communications
Voice, data, images, videos etc.
1993-
2001-
1979-
PDC: Personal Digital Cellular
3
NTT DoCoMo Inc. Confidential and Proprietary
Progress of DoCoMo’s Network (1)
PDC
MDE
PSTN /ISDN / PLMN
POI
MS
BCE
P-MDE
SPE PPM
MLS
PGW
Business Information System(Accounting, Contract etc.)
VoiceVoice
PacketPacket
STM
-Before IMT-2000
-Two approaches for IMT-2000
-Constructing a new network
-Reusing the 2G network
MGS / MTS
MIS
NMSCP
ISP/ Mopera/ i-mode
4
NTT DoCoMo Inc. Confidential and Proprietary
Progress of DoCoMo’s Network (2)
IMT-2000PDC
BTS MDE
PSTN /ISDN / PLMN
POI
UEMS
BCE
P-MDE
SPE
MPS
G/T-MMS
PPM
MLS
MPE
L-MMS
RNC
PGW
STM
ISP/ Mopera/ i-mode
ATM
Business Information System(Accounting, Contract etc.)
MIS
NMSCP
MGS / MTS
5
NTT DoCoMo Inc. Confidential and Proprietary
ServiceManagement
NetworkManagement
NetworkElement
Management
Network Element
Service Front Terminal
RAN Planning
NE FileStation DataManagement
PathManagement
OSS ConfigurationManagement
QoS Monitor
Network Monitor
Network Control
Major AlertAggregation
Call Processing Alert Aggregation
Traffic DWH
RANNEM
CNNEM
TransmissionNEM
SCPNEM
Design TerminalsQuality Analysis Terminal
BTS RNCSW
SCP
Transmission SW BTSRNC
OPE (NW Monitor & Control)
OPE (Backyard)
CN Planning
ProcessManagement
RAN Design
CN Design
TransmissionDesign
Configuration Part
Overview of OSS Architecture
OPE: Operation Equipment DHW: Data Warehouse
6
NTT DoCoMo Inc. Confidential and Proprietary
Network Management Features
● Monitoring- Easy Recognition of the Network Status and its
Characteristics
● Control- Adequate Network Control Capability for Improving
Service Quality and Increasing Revenue from Traffic
7
NTT DoCoMo Inc. Confidential and Proprietary
Monitor Network Quality
Identify the cause of network fault
Recovery of QoS→ Network Control
Call Loss Rate, Actual Usage Rate,
NE Congestion NE major alertNE status
Verify the action of NE Monitor
operator
Recovery action for NE failure
Monitor NE failureNetwork MonitorNetwork Monitor
Network AnalysisNetwork Analysis
ActionAction ActionAction
OPE: Network Monitor
NE AnalysisNE Analysis
NE MonitorNE Monitor
NetworkNetwork
Individual NE
BTS RNC SW SW
BS SW
Identify the cause of NE failure
Scope of Network Control Scope of Facility Maintenance
OPE: Backyard
OPE: Network Monitor
OPE: Network Monitor OPE: Backyard
XC
Transmission
NMSCP
OPE: Backyard
Overview of Network Monitoring & Control
8
NTT DoCoMo Inc. Confidential and Proprietary
Network Provisioning Features
● Quality Management, Planning & Design- Realizing network quality control and facility design
in effective and flow-through manner
● File Upgrade- Remote controlled and one-touch file upgrade on the
network elements
10
NTT DoCoMo Inc. Confidential and Proprietary
Business Information System(Accounting, Contract etc.)
Schedule/Process Management
RAN NEData
RAN NEs CN NEsTransmission
NEsNetwork
Planning & Design
Planning Data
NE Data Management, Distribution
QoS Analysis Terminal
RAN NEM CN NEMTraffic Information
Unified Management
Traffic DWH
Unified Management
CN NEData
TransmissionNE Data
Network Quality Management
Transmission NEM
RAN Design
CN Design
TransmissionDesign
Planning
Network Management, Planning & Design
11
NTT DoCoMo Inc. Confidential and Proprietary
ServiceManagement
NetworkManagement
Elementmanagement
Network Element
Service Front Terminal RAN
planning
RANdesign
CN design
NE FileStation datamanagement
OSS configurationmanagement
QoSMonitor
NetworkMonitor
NetworkControl
Traffic DWH
RANNEM
AssociatedOSS
CNNEM
SCPNEM
Station data
Operation data
BS RNCSW
SCP
transmission SWBSRNC
Planning & Design
OPE
OPE Backyard
Traffic(real- time)
Quality Analysis
Traffic (batch)
Design information
CN planning
Network Monitor &
Control
Data Flow-through
12
NTT DoCoMo Inc. Confidential and Proprietary
□□□
Consistency Check,upgrade commands
…
Autonomous messages
Status query
Switch 00
Switch 49
Station 00
Station 49
Operation Center
Conventional Operation System
□□□
□□□
File transfer,File upgrade
Same operation
Monitoring task only
File Transfer and File upgrade Operation for multiple Switches from one single
window
Monitors multiple switches from one single window
Reducing labor
FOCUS
Saving $1Ma year
Consistency Check,upgrade commands
…
Switch 49
Switch 00 Consistency Check,upgrade commands
…
Consistency Check,upgrade commands
…
□□□
□□□
ParallelOperation for50 switches
Zero fieldengineers
Same operation50 fieldengineers
Operation Center
Parallel File Upgrade Function
13
NTT DoCoMo Inc. Confidential and Proprietary
Network Element Management Features
● Network Element Management- Remote and concentrated network monitoring
and control
- Quick fault analysis and recovery through user
friendly graphical interface
14
NTT DoCoMo Inc. Confidential and Proprietary
IMT�RNC選��面
全ノ�ド 回復未確認 MJ装置 MJ運� MN�生 規制MJ
5 6 7 8 9 10規制MN
11
MJ������ MN������ 規制������23 24 25
消去2
十�MMS0003 0003 十�3RNC01 01 十�3RNC08 08 十�3RNC30 30
�浜山下MM0020 0020 �浜山下20RN10 10
�浜山下20RN20 20 �浜山下20RN30 30
RNC19
20 21
22
十� 十�MMS0001 0001 十�MMS0003 0003 十�MMS0005 0005 十�MMS0007 0007
�浜山下
�浜山下MM0020 0020 �浜山下MM0030 0030
MMS15
16 17
18
23�23�外神奈川
千葉埼玉群馬山梨
茨城栃木
長野
エリア12
13
14
中央
中央
地域選�3
4
1 IMT�BTS選��面
全ノ�ド 回復未確認 MJ装置 MJ運� MN�生 規制MJ5 6 7 8 9 10
規制MN11
MJ������ MN������ 規制������28 29 30
消去2
十�3RNC08 08 BTS03M8R02 02 BTS03M8R07 07 BTS03M8R12 12 BTS03M8R27 27
�浜山下20RN30 30 BTS20M30R5 05 BTS20M30R9 09
BTS23
24 25
26
十�MMS0003 0003 十�3RNC01 01 十�3RNC08 08 十�3RNC30 30
�浜山下MM0020 0020 �浜山下20RN10 10 �浜山下20RN20 20 �浜山下20RN30 30
RNC19
20 21
22
十� 十�MMS0001 0001 十�MMS0003 0003 十�MMS0005 0005 十�MMS0007 0007
�浜山下 �浜山下MM0020 0020 �浜山下MM0030 0030
MMS15
16 17
18
23�23�外神奈川
千葉埼玉
群馬
山梨
茨城栃木
長野
エリア12
13
SMSセクタ BTS RNC MPE MMS ARE ASCP � 索モ�ドOPS施 設 補 助
IMT�MMS選��面
23 �
23 �外
エリア
▲
▼
ビル
千葉
埼玉
群馬
山梨
茨城
栃木
長野
▲
▼
▲
▼
MMS
監視機能 ▼
消 去
MJ 監視全ノ�ド
神奈川
新潟
地域選�
中央 地域
� 行
23 �
唐ヶ崎
ビルA
ビルB
ビルD
ビルE
ビルF
ビルG
ビルH
十�
�領
ビルC
十�
十� LS(F)-A
十� LS(N)-C
局建工事中
備考
十� LS(N)-D
十� LS(N)-B
十� LS(F)-E
中央
十� LS(F)-F
OMCE 通信中�
MMS 監視制御
重要作業�態�制解除
OCSE-CN 運�監視
消 去
中央� 23 ��十� LS(F)-A
装置�態表示�面 ( ID:1406XX)
SEF99A
履 �詳細診�ACHOUS
�連 OUS障害ACTH-SBY�設中保守
ガイダンス表示部
INS
PR
ES
MSCS
CSP CLP TSWC RMP OMP EATMS CEXTSCLKS
LICS
SGCS
LTS
B-DTS
A-DTS
SDHS
IPUS
OPSS
TRKS
CMPS
ATIS
SIGS
ACIS
PSUS
STIS AIFS
CRSWS
Element Management: Sample
15
NTT DoCoMo Inc. Confidential and Proprietary
Introduction of New Operation System
● System’s NameNetwork Operation Knowledge System
(or simply Knowledge System)
● Timetable
Dec. 2003: File Provisioning for Knowledge System
Early Spring in 2004: Service In
16
NTT DoCoMo Inc. Confidential and Proprietary
Background of System Development
BS
(1)Problem with Work Intervened by Maintenance Personnel
Node NE Maintenance
Personnel
Link NE Maintenance
Personnel
Access NE Maintenance
Personnel
Workstation
Workstation
Workstation
Workstation
Workstation
Workstation
SWRNCTransmission
SW
Status Communicated
Status Communicated
Status Communicated
Fault !
NEs
Fault Messages
Fault Messages
Fault Messages
Fault Messages Fault
Messages
Spend much time to identify failed point
17
NTT DoCoMo Inc. Confidential and Proprietary
Workstation
Workstation
Green Maintenance Person
Maintenance Manuals
System Developer
(2)Problem with Different Levels of Skill among Maintenance Persons
??
SW
Fault !
Fault Messages
- Inaccurate Operation- Late Response
18
Background of System Development
NTT DoCoMo Inc. Confidential and Proprietary
Objectives of Knowledge System
Based on the previously identified problems with the current operation work, we have started developing our Network Operation Knowledge System, with the following objectives:
1)Reduction in Maintenance Workload
2)Reduction in Time to Recover from Severe
Faults
19
NTT DoCoMo Inc. Confidential and Proprietary
Schematic Overview of Knowledge System
BS SW BS RNC
NEs for PDC (2nd Generation)
NEs for IMT-2000(3rd Generation)
SW
NEs for Future Implementation(4th Generation)
NEs
OSSs for NE Management
OSSs for Network Control
Information TransferNetwork
Network Operation Knowledge System
NE-FS
CASE
FOCUS
OSSsfor Provisioning
□□□ □□□
□□□ □□□
□□□
□□□
Fault Messages
Control Control Reference
Fault Messages
TCSTCS
20
NTT DoCoMo Inc. Confidential and Proprietary
Configuration of Knowledge System
Network Operation Knowledge System
OSSAdapter
System Management Server
Data ManagementServer
Work ExecutionControl Server
System ManagementTerminal
Work ExecutionControl Terminal
NE-OSSs
NC-OSSs
Environment to GenerateFault Recovery
Action Scenarios
Node NE-OSS
Access NE-OSSs
Link NE-OSSs
Workstation
Workstation
Workstation
Workstation
Workstation
Workstation
● Main Features - Multi-module Configuration to Ensure Expandability - Creation of Scenarios for Fault Recovery Work Processes
21
NTT DoCoMo Inc. Confidential and Proprietary
Effects (1)
22
●Workload Reduction- Effect in workload reduction is expectable because
Knowledge System executes monitoring
& troubleshooting instead of maintenance persons.
Monitor ing35%
CompilingData29%
Troubleshooting
15%Installat ion9%
Other9%Train ing
3% Effects in workload reduction are expectable in portions shown in yellow (Monitoring and Troubleshooting).
[Example] Workloads at DoCoMo’s Network Operation CenterNode System Access/Link Systems
Monitor ing24%
Troubleshoot ing
20%
CompilingData43%
Installat ion4%
Other5%
Train ing4%
NTT DoCoMo Inc. Confidential and Proprietary
Effects (2)
● Shorter Downtime- Effect in shortening recovery time is expectable
because Knowledge System performs message
analysis automatically.
Work flow after system introduction
Process B
Effect 1: Reducedtroubleshooting
time
Access mainte-nance division
Node mainte-nance division
Standard work flowProcess A Process C Process D
Process E
Process X Process Y
Access mainte-nance division
Node mainte-nance division
Effect 2: Reducedoperation through
automation
23
top related