113260680 oau004101 umg8900 hardware and architecture principle r003 issue2!1!20050622

ISSUE

Fixed Network Curriculum

Development Section

OAU004101 UMG8900

hardware and Architecture

Principle 2.1

Confidential Information of Huawei.

No Spreading without Permission. Security Level: Internal

Objectives

Know UMG8900 Product

Orientation and Product Feature

Master Architecture and Principle

Master service and networking

application of UMG8900.

Upon completion of this course, you will be able to:



References

U-SYS™ UMG8900 Universal Media Gateway Technical

Manual



Course Contents

Brief Introduction

Architecture and Principle

Service and Networking Applications



Brief Introduction

As a large-capacity gateway device of carrier class

supports interworking between different bearer networks

provides conversion function between different traffic flow

formats:

server as trunk gateway (TG);

Act As access gateway (AG) ;

support embedded signalling gateway (SG).



Product Orientation

I. NGN Switch

II. TG Application of NGN:

III. AG Application of NGN:

IV. MGW Application of 3G Network:

V. Combined Application:



Product Structure

UMG8900 can be divided into two parts: service switching

module and user access module.

Service switching module(SSM):

performs the traffic flow format processing and switching function. Act

as TG or as a switch in NGN.

User access module(UAM):

provides integrated access function for both narrowband and

broadband users act as AG.



UMG8900 structure

SSM

UAM UAM UAM......

TDM

Connection

H.248/O&M/SIGTRAN

ASL/DSL/PRA/DDN/FE

TDM/IP/ATM

Trunk

TDM/IP/ATM

Trunk

UMG8900

SSM: Service Switching Module UAM: User access module



Service Switching Module

Service switching module (SSM) of UMG8900 is consisted of 4 parts:

Main control frame

implements management and maintenance functions of the whole device and supports

service access and process simultaneously.

Service frame

provides service bearer process function.

Central switching frame

provides multi-frame cascading function when multi-frame cascading (≥3 frames).

Extended control frame

is configured when the device is in the maximum configuration. The extended frame

does not support access and process functions of bearer services, but provides

connection management and control function.



Front view of the cabinet of service switching module

N68-22 cabinet



Front view of frames of service switching module



Frame diagram pair plugged from front and back

(1) Lintel (2) Front board

(9U)

(3)

Embedded

fan

(4) Back board (8U)

(5) Filter



The configuration of some frames adopting the N68-

22 cabinet

Service frame (12U)

#2

Main control frame (12U)

#1

Central switching frame (12U)

#0

Power distribution frame (2U)

Air deflector frame (2U)


Dummy panel (2U)

Dummy panel (1U)

Service frame (12U)

#5

Service frame (12U)

#4

Service frame (12U)

#3




Extended control frame (12U)

#8

Service frame (12U)

#7

Service frame (12U)

#6




Fiber guide (1U)

Dummy panel (2U)

Dummy panel (1U)

Fiber guide (1U)

Dummy panel (2U)

Dummy panel (1U)

Fiber guide (1U)



User access module

UAM provides broadband and narrowband user access

function.

Frame of narrowband : RSP frame and PV8 frame .



The frame types provided by user access module

Type

Maximum

supported user

boards

Cabinet Remark

UAM 9 19” cabinet Master frame

UAS 13 19” cabinet Slave frame

UAFM 10 19” and F01D200/500

cabinet

Master frame maintained

from front

UAFS 13 19” and F01D200/500

cabinet

Slave frame maintained

from front

PV8-10 11 19” cabinet Master frame

PV8-12 12 19” cabinet Master frame

RSP-6 5 ONU-160B -

RSP-10 11 19” cabinet Slave frame

RSP-12 12 19” cabinet Slave frame

RSP-14 14 19” cabinet

Slave frame, which the

power supply board can

only be configured

separately.



RSP-12 Subscriber Frame

0 1 2 3 4 5 6 7 8 9 10111213141516 17

T

S

S

A

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E1 E1

SSM UAM

E32 board



PV8-10 Main Control Frames

0 1 2 3 4 5 6 7 8 9 10111213141516 17

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0 1 2 3 4 5 6 7 8 9 10 1112131415 16 17

T

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H

W

C

A

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8

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0 1 2 3 4 5 6 7 8 9 10111213141516 17

T

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X

SSM

UAM

HW

E1



Course Contents

Brief Introduction





Hardware System Structure

OMU：main control unit

NET： data switch network

CLK： clock unit

CMU：connect management unit

SPF： signalling process unit

TNU： TDM SWITCH UNIT

E32： 32×E1

S2L： 2×155SDH

ASU： SAR Process unit

A4L： 4×155ATM

HRB：route transfer unit

E8T： 8×FE interface board

E1G： 1×GE interface board

VPU：Voice Process unit

FLU：Front Cascading Unit

BLU： Back Cascading Unit

Note：

Shadow Part is Back Board

FE

MBUS

GE

TDM

C

M

B

N

E

T

V

P

U

A

S

U

H

R

B

F

L

U

S

P

F

O

M

U

T

N

U

C

L

K

S

2

L

A

4

L

E

8

T

E

1

G

S

R

U

E

3

2

B

L

U



* E32: 32E1

T32: 32T1

S2L: 2*155M(STM-1, 63E1)

S2E: 2*155M(STM-1, 63E1)

E8T: 8*10/100M

E1G: 1*GE(1000M)

P4L: 4*155M, POS

P1H: 1*622M, POS

A4L:Voice over IP

over ATM(VoIPoATM)

4*155M, ATM

TDM interface

IP interface

C L K

OMU SPF

H R B

CMU

PSTN

FLU BLU

cascading

PV8/RSP

* VPU TNU/

TCLU

LMT or

iManager N2000

SoftX3000 M2UA

IUA

V5UA

H.248

8K

E1/T1

S2L

SDH E1

TDM IP

Relationship of UMG8900 Boards

IP

(MPU)

Voice of IP

MML

NET



System Bus

GE

FE

TDM

MBus

E

C

U

V

P

U

H

R

B

O

M

U

F

L

U

S

P

F

C

M

U

M

P

U

C

L

K

C

M

U

E

3

2

T

N

U

B

L

U

T

3

2

E

8

T

N

E

T

E

1

G

S

2

L

P

4

L

P

1

H

MBus

FE

TDM

GE

BACK

FORE

T

C

L

U

V

P

U



Hardware Logic Structure

Logic system structure with UMG8900 as NGN switch

Logic system structure with UMG8900 as TG

Logic system structure with UMG8900 as AG

Logic structure of combination application



Logic structure of combination application (TG/AG)

OMU

CMU

OMU/MPU

Mbus Lan

Switch

HRB

ME8T/E1GM E8T/E1G

GE

Switch

NET

S2LM ME32

TNU/TCLU

S2L

CLK

VPU

IP

Gatew

ay control

subsystem

TDM trunk

SPF

E32

RSP

A

S

L

D

S

L

D

S

L

POTS/BRI

A

S

L

PSTN switch / ISDN/

V5 access network S

ubscriber access

subsystem

TDM

switching &

access

subsystem

Clock

subsystem

Packet processing subsystem

Service resource processing

subsystem

O & M subsystem

MGC(SoftX3000) OMC



Hardware Fundamentals

UMG8900 hardware system can be divided into the following

subsystems:

1. Operation and maintenance subsystem

2. Gateway control subsystem

3. TDM access and switching subsystem

4. Packet processing subsystem

5. Service resource processing subsystem

6. Subscriber access subsystem

7. Signaling forwarding subsystem

8. clock subsystem

9. Cascading subsystem.



operation and maintenance subsystem

Ethernet

BAM

OMU Master

FAM

FAM

OMU Slave

BAM

FAMPPU

CMU

VPU

HRB

TNU

CLK

LAN(FE)CAN

Mbus

Mbus

FAM

FAM

FAM

FAM

FAM

Mbus

Mbus

Mbus

Mbus

Mbus

Mbus

CAN

LAN(FE)

NMS

TRACE/DEBUG

MAINTAIN

WARN

HostLMT



Gateway Control Subsystem

I. Architecture and function

II. Protcol processing module

III. Connection management module

CMU

OMU/MPU

Lan-Switch

Gateway Control

Subsystem

H.248( FE)

MGC(SoftX3000)



Service Resource Processing Subsystem

1.this subsystem performs media stream format

conversion and service bearer adaptation

2.This subsystem concerns VPU ( ECU).

VPU is responsible for voice transcoding and physical

boards is FVPB;

it is engaged in announcement playing, DTMF

generation and detection, digit collection, MFC,

audio mixing (conference) and FSK and has such

physical boards as FSRU.

ECU :

is echo cancellation board ,it is the pinch board of

VPU.



TDM Access and Switching Subsystem

OMU/MPU

FVPUFVPU

VPU

E32/T32/

S2L

TDM access and

switching subsystem

TNU/

TCLU

3*TDM

Packet processing

subsystem



Packet Processing Subsystem

FASUFA4LA4L

FRPUHRB

E8TF/

FE1GE8T/E1G

OMU/MPU

FVPUFVPU

VPU

HRB

Packet processing subsystem

NET

CLK/GE/FE

IPATM



Clock Subsystem



Signaling Forwarding Subsystem

GE

FE

TDM

Mbus

TNU/

TCLU SPF VPU

CMU OMU/

MPU NET CMU

Signaling

FE

E32/T32



Cascading Subsystem

F

B

L

U

FMPU/FNET/FTNU

Central switching frame

3xTDM+2xGE+2xFE

F

F

L

U

F

B

L

U

F

F

L

U

FMPU/FNET/TCLU

Service frame 1

F

V

P

U

F

S

2

L

F

H

R

U

F

A

4

L

FMPU/FNET/TCLU

Servie frame 6

F

V

P

U

F

E

L

C

F

H

R

U

F

G

1

O



MPU/NET/TNU

F

L

U

B

L

U

F

L

U

B

L

U

MPU/NET/TCLU

A

S

U

T

C

U

C

M

U

P

P

U

R

P

U

MPU/NET/TCLU

A

S

U

T

C

U

C

M

U

P

P

U

R

P

U

OMU/NET/TCLU

A

S

U

T

C

U

C

M

U

P

P

U

R

P

U

MPU/NET/TCLU

P

P

U

P

P

U

C

M

U

C

M

U

P

P

U

C

M

U

1*TDM+!*GE

(back plane)2*TDM+!*FE

(back plane)

3*TDM+2*GE+1*FE1*TDM+2*GE

(back plane) 3*TDM+2*GE+1*FE

3*TDM+2*GE+1*FE 1*FE

main control frame expansion control frame

centralswitchframe

service frame（frame NO.2-7）

back plane back plane

back plane

bak plane

back plane



Cascading Subsystem

Packet plane cascading module

TDM plane cascading module

Control plane cascading module



Introduction to Boards

The involved boards can be divided into seven categories according to

their functions:

Equipment and resource management unit (FOMU, FMPU , FCMF

and FCMB)

Service and protocol processing unit (FHRU and FSPF)

Switching and subtending unit (FNET, FTNU, TCLU, FFLU and

FBLU)

Interface board (FP1H, FG1O, FS2L, FS2E, FP4L, FE8T, FE32/FT32)

and backup interface board (FBGE, FBFE and FBAP)

Media resource processing board (FVPU, FECU)

Clock board and clock drive board (FCLK)

Subscriber access module (PV8, RSP, TSS, ASL, ESC, PWX and

HWC)



Software System

The software system is divided into two parts by their different

functions and applications: host software and LMT system.

The host software is further divided into lower-layer base

software, service application software and maintenance and

management software.

UMG8900 is managed and maintained by the BAM module in

a hard disk built in the UMG8900 host.



Software architecture of UMG8900

Host software

BAM LMT

LMT affords the following functions • Configuration management

• Fault management

• Performance management

• Security management



Host software architecture

Hardware platform

Signaling

processing

Lower-layer base software (RTOS)

Gateway control

Midware (VRP/DOPRA)

TDM bearer

resource

processing

Service resource processing

Operation & maintenance

Packet bearer

resource

processing



Networking of LMT

BAM

FAMUMG89001

MOMU

BAM

FAMUMG8900n

MOMU

......

LMT Alarm box

Internal FEinterface

Internal FEinterface

LAN

MML & private protocol

MMLTCP/IP

MML

SNMP SNMP

MMLSNMP

Serialport

Privateprotocol

MML & private protocol

Server

Client end

iManager

N2000Server

Client end

iManager

M2000

Externalinvoke

Externalinvoke

UMC/

Mobile

phone

Serial

port

Modem

Serial port

Phone



Maintenance window



Control Flow Processing

The control plane is responsible for the processing of service

bearer control messages and the adaptation of channel

associated signalling and subscriber signalling.

•1)Processing of service bearer control messages

•2)Processing of channel associated signalling

•3)Processing of subscriber signalling



Control Flows (MGW controll )

Fully distributed service model

FE

TDM

O

M

U

V

P

U

C

M

F

C

M

B

C

M

B

T

N

U

N

E

T

FE

TDM BACK

FORE

MGC

E

C

U

H

R

B



Control Flows (CCS)


FE

TDM

O

M

U

S

P

F

C

M

F

C

M

B

E

3

2

T

N

U

N

E

T

FE

TDM

BACK

FORE

BSC/LE/V5AN MGC



Control Flows (R2&China No.1)


T

N

U

FE

TDM

O

M

U

V

P

U

C

M

U

C

M

U

C

M

U

E

3

2

N

E

T

FE

TDM

BACK

FORE

LE MGC



Control Flows (No.5)


T

N

U

FE

TDM

O

M

U

V

P

U

C

M

U

C

M

U

C

M

U

E

S

C

N

E

T

FE

TDM

BACK

FORE

LE MGC



Service Processing Flow (TDM↔IP )

GE

TDM

V

P

U

H

R

B

E

3

2

T

N

U

E

8

T

N

E

T

TDM

GE FORE

TDM IP




Announcement Playing

Playing of asynchronous announcements/busy tones/howler tones

E8T/E1G

D

S

L

RSP

E32/T32/

S2L

TNU/

TCLU

CMU CMU

E32/ VPU

FE control bus

MGC(SoftX3000)

Asynchronous

announcement

H.248 messages

TDM

bus

A

S

L

HRB

GE bus

Asynchronous announcement

Asynchronous announcement



Processing Flow (HRB centralized upstream model)

HRB centralized upstream model

CMU CMU OMU/

MPU

OMU/

MPU

TNU/

TCLU HRB

VPU

Other MGW / MGC/LMT

Main control part

pairs of CMU

(1+1 backup)

E1/T1/SDH

1*GE/8*FE/

4*155M POS

CMU CMU

E32/T32/

S2L

S

P

F



Clock Signal Path



Clock distribution path



Loading Path

LMT

F

CLK

F

TNU

F

NET

F

NET

F

TNU

F

A4L

F

P4L

F

S2L

F

E32

FVP

U

FVP

U

FOM

U

FOM

U

FHR

B

F

E8T

F

E1G

FTP service Hyper terminal

Master

Slave

FE crossovernetwork cable

RS232 cable

FE crossover

network cable

FE control bus

Loading path of

UMG8900



Loading Path

Manually OMU Loading Path:

FTP server → OMU

Software Loading Path for Service Boards:

I. Loading from FLASH

II. Loading from BAM

BAM embedded OMU→ internal FE bus→ service boards

III. Loading from external server

The loading from external server is performed via the device

maintenance interface OMC. The loading path for service boards is

the same as loading from BAM.



Alarm Path

F

O

M

U

F

O

M

U

F

N

E

T

F

N

E

T

F

T

N

U

F

T

N

U

F

C

L

K

F

A

4

L

F

V

P

U

F

P

4

L

F

S

2

L

F

E

3

2

F

V

P

U

F

H

R

B

Service

board

F

Master

Slave Master

Slave

FE bus

MBUS

Service

board

LMT

Crossover network cable

Note: when LMT is

connected with the host through LanSwitch, the

straight-thru cable is used



Signaling Adaptation

The embedded SG of UMG8900 supports the adaptation of

multiple types of CCS and CAS.

common channel signaling (CCS) as SS7, DSS1 and V5 are

adapted based on SIGTRAN protocol.

channel associated signaling (CAS) such as R2 and No.5

and R2 multi-national adaptation are supported.

UMG8900 achieves R2 adaptation mainly by means of H.248

extended packets.



SS7 & PRA &V5 signaling adaptation

EP UMG8900MGC

SoftX3000

Q.931 Q.931

Q.921

L1 L1

Q.921IUA

SCTP

IP

IUA

SCTP

IP

MAC MAC

PRA IP

TDM IP

IUA-NIF

SEP UMG8900MGC

SoftX3000

S7UP

MTP3

S7UP

MTP3

MTP2

MTP1 MTP1

MTP2M2UA

SCTP

IP

M2UA

SCTP

IP

MAC MAC

SS7 IP

M2UA-NIF

TDM IP

AN UMG8900MGC

SoftX3000

V5 V5

LAPV5

L1 L1

LAPV5V5UA

SCTP

IP

V5UA

SCTP

IP

MAC MAC

V5.X IP

V5UA-NIF

IPTDM



Protocol stack for common channel signaling

adaptation

M3UA M2UA IUA V5UA

SCTP

IP

MAC

M3UA: MTP3 User Adaptation M2UA: MTP-2 User Adaptation

V5UA: V5 User Adaptation SCTP: Stream Control Transmission

Protocol

MAC: Media Access Control IP: Internet Protocol

IUA: ISDN Q.921 User Adaptation



Typical signaling network in NGN

SG: Signal Gateway LE: Local Exchange

LMT: Local Maintenance Terminal

PSTN

SS7 signaling

network

iManager/LMT

Independent SG

UMG8900

SoftX3000

LE

Embedded SG

Semi-permanent

connection



Course Contents

Brief Introduction





Networking Applications

UMG8900 serves as TG or AG in NGN or as the traditional PSTN

switch and the next-generation switch:

1.In NGN, UMG8900 is applied in the gateway exchange and toll exchange as

large-capacity TG.

2.UMG8900 can provide next-generation TDM switch application.

3.UMG8900 can act as tandem exchange/toll office/gateway exchange/C5

networking application of PSTN .

4.Provides AG function of large capacity via RSP/PV8 user frame of UMG8900

accesses user directly.



C5/AG/PBX networking application of NGN



C4/TG/TDM Networking application of NGN

SoftX3000

UMG8900

H.248/

SIGTRAN

AppServerRoute/Policy

Service

SNMPPARLAY

/SIPINAP

Switch

H.248/

SIGTRAN

NMS

SoftX3000

UMG8900

SIP-T/BICC

IN

LDAP/

TRIP

Packet/TDM

bearer netwrk

Switch

SS7/PRI/R2 SS7/PRI/R2

PSTN PSTN



Dual homing application

PSTN UMG8900

MGC(SoftX3000 Master) MGC(SoftX3000 slave)

IP Core

Network

UMG8900



Service Resources

UMG8900 provides services by cooperating with MGC,

network transmission equipments and other terminal

equipments. UMG8900 mainly contains the following

functions::

1) Voice transcoding

2) Echo cancellation

3) Announcement play

4) Digit collection

5) Multi-party conference



Voice transcoding

CODEC TYPE RATE （ kbit/s ） PACKAGE TIME

（ms）

G.711 64 5、10、20、30

G.723.1 5.3/6.3 30

G.729/ G.729A 8 10

G.726 16/24/32/40

G.728 16



Service Processing Parameters-Pure TDM Switch

Function Item Index

Number of ports E1 interface: 8000 trunk (single frame), 56000 trunk

(maximum)

SDH interface: 32000 trunk (single frame), 360,000

trunk at most

Call processing

capability ≥2000 times/s

Call loss <0.1%

BHCA 16,000,000 (trunk office), 8000K (end office)

Traffic 260,000 Erl (trunk office), 130K Erl (end office)



Service Processing Parameters- TG Feature

Function Item Index

Number of supported ports

E1 interface: 6000 channels (single frame),

54000 channels (maximum)

SDH interface: 10000 channels (single frame),

70000 channels (maximum)

Call processing capability

(CAPS) ≥1250 times/s

Dynamic switchover time

of voice transcoding <60ms

Delay and time delay

variation

When G.723.1 algorithm is adopted, single frame is sent, the sum of

processing delay at both gateway sides should be within 100ms.

When G.729a algorithm is adopted, single frame is sent, the sum of


When G.711 algorithm is adopted, duration of packing is 10ms, the sum of




Service Processing Parameters- TG Feature

Function Item Index

Jitter time of gateway

device <10 ms

Encoding rate

The encoding rate of G.729a is 8k bit/s.

The encoding rate of G.723.1 is 5.3k bit/s and 6.3k bit/s.

The encoding rate of G.711 is 64k bit/s

the encoding rate of G.726 is 16k bit/s, 24k bit/s, 32k bit/s

and 40k bit/s.

Voice quality

If network is in good condition, MOS>4.0, PSQM mean

value<1.5

Otherwise (Packet loss rate =1%, network jitter=20ms,

network time delay=100 ms), MOS>3.5, PSQM mean

value<1.8.

Quality of Fax service

The establishment time of fax call T<20s (the establishment

time of fax call means the interval from the time after dialing

the last number to the time of starting sending fax)

Fax speed The fastest speed reaches14.4 kbit/s



Service Processing Parameters- SG &AG

SG Function

Item Index

M2UA link

quantity

Each board has 64 pieces of 64 kbps signaling links. The

maximum signaling processing capacity of each link is

154MSU/S or 2 2M signaling links.

IUA link

quantity Each board has 128 pieces of 64 kbit/s signaling links

V5UA link

quantity Each board has 64 pieces of 64 kbit/s signaling links

AG Function

Item Index

Number of

supported

users

V5 user: 70000 users at most

PRA user: 56K B channel user

POTS user: 224000 users at most

BRI user: 112000 users at most

113260680 oau004101 umg8900 hardware and architecture principle r003 issue2!1!20050622

Documents

internal service

security level

module service

service access

service frame

principle service

cabinet of service

internal objectives