1- optix rtn 900 v100r002 product description

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Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.

OptiX RTN 900 V100R002 Product

Description


About This Document

The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It can provide a solution that is integrated with the TDM microwave, Hybrid microwave, and Packet microwave based on the network requirements. RTN 900 V1R1 support pure packet microwave, and RTN 900 V1R2 support TDM microwave and Hybrid microwave.

This course introduces the evolution process of microwave products and the packet microwave features, functions, hardware features, and version matching of the RTN 900 V1R2. Through this course, you can have a general understanding about the RTN 900 V1R2.


Related Information

OptiX RTN 900 V100R002 Product

Manual — Product Description


Objectives

After learning this course, you should be familiar with:

Evolution of microwave products

Microwave features of the OptiX RTN 900 V100R002

Functions of the OptiX RTN 900 V100R002

Hardware features of the OptiX RTN 900 V100R002

Version matching of the OptiX RTN 900 V100R002


Contents

1. Development of the IP RAN and Evolution of

Microwave Transmission

2. Features of Packet Microwave

3. Features and Functions

4. Hardware

5. Version Matching


Advent of the IP Age

2G -> 3G -> 3G+ ->LTE, the backhaul of mobile base stations evolves from TDM to IP. Microwave transport networks evolve from the traditional TDM microwave network to the packet

microwave network.

BSC RNC

eNodeB eNodeB eNodeB

aGW

X2X2

NodeBNodeB NodeBBTS BTS BTS

Mobile B

ackhaul

TDM/ATM TDM/ATM/Eth. ALL IP

2000 1XDL:153.6kUL:153.6k

EV-DO(R0)DL:2.4MUL:153.6k

EV-DO(RA)DL:3.1MUL:1.8M

EV-DO(RB)DL:6.2-73.5MUL:3.6-27M

LTEDL:100MUL:50M

2 Gbit/sR99/R4DL:384kUL:384k

HSDPA(R5)DL:14.4MUL:384k

HSUPA(R6)DL:14.4MUL:5.76M

HSPA+(R7)DL:43MUL:11.5M

LTE(R8)DL:100MUL:50M

Mobile Evolution

CDMA2000

WCDMA


Packet in air

IDU

Real-timeReal-timeReal-time

Real-time

Real-timeTDM

based

TDM

IDU

Packet

based

TDM

ETH

TDM in air

Three Microwave Forms

Hybrid in air

ETH

IDUReal-time

Real-timeTDM TDM

Packet

ETH

Native

EOS

Native

Native

PW

TDM Microwave: PDH microwave is used for access; SDH microwave is used for convergence. Ethernet services are transmitted in the space through the EOS technology. It supports the fixed modulation scheme from QPSK to 128QAM, and features

small capacity.It is used in 2G and early stages of 3G networks.

Hybrid Microwave: Native TDM + Native Ethernet It supports the modulation scheme from QPSK to 256QAM and the AM function,

and features high bandwidth. It is used in scenarios where TDM and IP networks coexist at the initial stage of the

transition from 2G networks to 3G networks. At this stage, voice services are primary and data services are secondary among mobile services. Adding the packet switching capability to the original TDM microwave equipment is undoubtedly the preferred solution at the transition stage of the mobile transport network evolution. In this way, investment in original equipment can be protected and existing voice services can be transported.

Packet Radio: It is pure packet microwave. It supports the modulation scheme from QPSK to 256QAM and the AM function,

and features high bandwidth. It is used at the All-IP stage of 3G networks. The pure packet microwave is the

best choice for a carrier who needs to build a new mobile IP transport network.


Evolution of Microwave Transmission Network

When microwave transport networks evolve towards packet transport networks inevitably, it is

a most cost-effective solution for carriers to evolve microwave transport networks from

traditional TDM microwave networks to hybrid microwave networks, and then to pure packet

microwave networks. This solution combines strengths such as protecting investment in

existing networks, flexible upgrade, and compatibility. If carriers need to build new mobile IP

transport networks, the best choice is to use advanced pure packet microwave equipment to

transport future All IP services.


Huawei's Microwave SolutionsHuawei's Microwave Solutions

TDM/MSTP microwaveTDM/MSTP microwave

RTN 620RTN 620

RTN 605RTN 605

Pure Packet Pure Packet microwavemicrowave

Hybrid microwaveHybrid microwave

Networklized

High Efficiency

Future-oriented

RTN 910/950RTN 910/950

R1 R3

R1/R2R3

R1

R3R2


Contents

1. Development of IP RAN and Evolution of Microwave Transmission



4. Hardware

5. Version Matching


Radio Link Forms

The OptiX RTN 900 V1R2 provides the radio links of different forms by flexibly configuring different IF boards and ODUs to meet the requirements of different microwave application scenarios. Different radio link forms of OptiX RTN 900 V1R2 support different types of microwaves. The radio link form of the TDM microwave supports the PDH microwave and the SDH microwave. The radio link form of the Hybrid microwave support the Hybrid microwave.

1. The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services). During the transmission, the PDH microwave does not change the features of the PDH services.

2. The SDH microwave refers to the microwave that transmits SDH services. During the transmission, the SDH microwave does not change the features of the SDH services.

3. The Hybrid microwave refers to the microwave that transmits native E1 services and native Ethernet services in hybrid mode. The Hybrid microwave supports the AM function. During the transmission, the Hybrid microwave does not change the features of the E1 services and Ethernet services.


TDM Microwave

The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services). During the transmission, the PDH microwave does not change the features of the PDH services. Unlike the conventional PDH microwave equipment, the RTN 900 V1R2 has a built-in MADM. The MADM grooms the E1 services to the microwave port for further transmission. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.

The SDH microwave refers to the microwave that transmits SDH services. During the transmission, the SDH microwave does not change the features of the SDH services.

Unlike the conventional SDH microwave equipment, the RTN 900 V1R2 has a built-in MADM. The MADM grooms services to the microwave port through cross-connections, maps the services into the STM-1-based microwave frames, and then transmits the STM-1-based microwave frames. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.


The Capacity of TDM Microwave

Channel Spacing (MHz) Modulation Mode Service Capacity (Mbit/s)

7 QPSK 4xE1

3.5 16QAM 4xE1

14 (13.75) QPSK 8xE1

7 16QAM 8xE1

28 (27.5) QPSK 16xE1

14 (13.75) 16QAM 16xE1

14 (13.75) 32QAM 22xE1

14 (13.75) 64QAM 26xE1

28 (27.5) 16QAM 35xE1


The Capacity of TDM Microwave (Cont.)

Channel Spacing (MHz) Modulation Mode Service Capacity (Mbit/s)

28 (27.5) 32QAM 44xE1

28 (27.5) 64QAM 53xE1

28 (27.5) 128QAM 1xSTM-1

28 (27.5) QPSK 1xE3

14 (13.75) 16QAM 1xE3

If the radio link form is the SDH/PDH microwave, the maximum capacity of each

channel of microwave is STM-1.


Hybrid Microwave

The Hybrid microwave refers to the microwave that transmits native E1 services and native Ethernet services in hybrid mode. The Hybrid microwave supports the AM function. During the transmission, the Hybrid microwave does not change the features of the E1 services and Ethernet services.

The RTN 900 V1R2 has a built-in MADM and a packet processing platform. The MADM transmits E1 services that are accessed locally or extracted from the SDH to the microwave port. After processing the accessed Ethernet services in the unified manner, the packet processing platform transmits the Ethernet services to the microwave port. The microwave port maps the E1 services and the Ethernet services into Hybrid microwave frames and then transmits the Hybrid microwave frames.


Service Transmission Mode The Hybrid microwave defines different types of Hybrid microwave frames for different working

modes. The accessed E1 services and Ethernet services are multiplexed into the same Hybrid microwave frame, and then transmitted to the ODU through the IF interface after IF coding and modulation. The E1 services and the Ethernet services are transmitted to the remote end through the microwave after the up-conversion.

The features of the Hybrid microwave frame are as follows:① The frames with a fixed period are used for transmission. ② In the specific modulation mode or channel spacing, the length of Hybrid microwave frames

remains unchanged. ③ The E1 services in Hybrid microwave frames occupy a fixed bandwidth (when N E1 services are

transmitted, the bandwidth of N E1 services is occupied). Thus, the Hybrid microwave does not change the features of the E1 services during transmission.

④ In Hybrid microwave frames, the Ethernet services occupy the remaining bandwidth of the E1 services. The encapsulation adaptation processing of the Ethernet frames is performed, so the Hybrid microwave does not change the features of the Ethernet services during transmission.

The hybrid transmission of native E1 services and native Ethernet services in the Hybrid microwave is supported.


Capacity of the Hybrid Microwave Service

Channel Spacing (MHz)

Modulation Mode

Service Capacity (Mbit/s)

Maximum Number of E1s

in Services

Port Throughput (Mbit/s)

7 QPSK 10 5 9~11

7 16QAM 20 10 19~23

7 32QAM 25 12 24~29

7 64QAM 32 15 31~37

7 128QAM 38 18 39~44

7 256QAM 44 21 43~51

14 (13.75) QPSK 20 10 20~23

14 (13.75) 16QAM 42 20 41~48

14 (13.75) 32QAM 51 24 50~59


Capacity of the Hybrid Microwave Service (Cont.)


Modulation Mode


Maximum Number of E1s

in Services


14 (13.75) 64QAM 66 31 65~76

14 (13.75) 128QAM 78 37 77~90

14 (13.75) 256QAM 90 43 90~104

28 (27.5) QPSK 42 20 41~48

28 (27.5) 16QAM 84 40 84~97

28 (27.5) 32QAM 105 50 108~125

28 (27.5) 64QAM 133 64 130~150

28 (27.5) 128QAM 158 75 160~180

28 (27.5) 256QAM 183 75 180~210


Capacity of the Hybrid Microwave Service (Cont.)


Modulation Mode


Maximum Number of E1s in

Services


56 (55) QPSK 84 40 84~97

56 (55) 16QAM 168 75 170~190

56 (55) 32QAM 208 75 210~240

56 (55) 64QAM 265 75 260~310

56 (55) 128QAM 313 75 310~360

56 (55) 256QAM 363 75 360~420

If the radio link form is the Hybrid microwave, the maximum capacity of each channel of

microwave is 363 Mbit/s when the high power ODU is used or 183 Mbit/s when the

standard power ODU is used. If the XPIC technology is used, the service capacity of the

microwave channel can be doubled with same the spectrum bandwidth.


Modulation Modes The TDM microwave only supports fixed modulation. The Hybrid microwave supports fixed

modulation and adaptive modulation (AM). The fixed modulation refers to a modulation scheme wherein a modulation scheme is

adopted invariably when the radio link is running. When the fixed modulation is adopted, the modulation scheme can be configured through software. A modulation scheme can range from QPSK to 256QAM.

The AM is a technology through which the modulation scheme can be adjusted automatically according to the channel quality. When the AM is adopted, the lowest modulation mode (also called reference mode) and highest modulation scheme (also called nominal mode) can be configured through software.

Capacity

Time99.999%

Voice

Adaptive Modulation

Outage: 5.25min

99.998%99.995%99.99%99.95%

256QAM128QAM

64QAM 64QAM128QAM 256QAM

32QAM99.9%

Outage: 10.51min

Outage: 26.28minOutage: 52.56minOutage: 262.80minOutage: 525.60min

QPSK

16QAM

Packet radioGSM

HSPA

Time

Capacity

99.999%

Fixed Modulation

Fixed Bandwidth

TDM radio

QPSK

Outage: 5.25min

GSM

HSPA


AM Technology Through the AM technology, the Hybrid microwave uses a high-efficiency modulation scheme

when the channel is of better quality. Hence, more user services can be transmitted and thus the transmission efficiency and spectrum utilization are improved. When the quality of the channel is degraded, the Hybrid microwave uses the low-efficiency modulation scheme, in which only the services of a high priority are transmitted. Hence, the anti-interference capability of links is enhanced and availability of the links on which the high-priority services are transmitted is ensured.

E1 services are of the highest priority in the AM-based Hybrid microwave transmission. Ethernet services are classified into flows of different priorities based on the CoS technology. When the Hybrid microwave uses the lowest-efficiency modulation scheme, the equipment transmits E1 services only (if the service bandwidth is higher than the total bandwidth of the E1 services, the Ethernet services of a high priority can be transmitted). When the Hybrid microwave uses other modulation schemes, the increased bandwidth can be used to transmit Ethernet services. In this case, availability of the links on which the E1 services and Ethernet services of a high priority are transmitted can be ensured and the capacity for transmitting Ethernet services increases.


AM ImplementationBefore switching

When the SNR value received at the receive end is lower than the threshold, the receive end transmits quality degradation indication signals to the AM engine.

The AM engine at the receive end places switching indication signals to the overheads of a Hybrid microwave frame. The switching indication signals are transmitted to the local end through the transmit path.

The IF unit at the transmit end processes IF signals, and transmits the switching indication signals of the AM to the AM engine.

The AM engine transmits the switching indication signals to the service signal processing unit and the IF signal modulation unit, indicating that the service signal processing unit and the IF signal modulation unit complete the switching of service frames and the change of modulation schemes after frame N.

After the modulation scheme changes, the bandwidth of E1 services does not change. The Ethernet services with higher priorities are multiplexed into microwave frames based on the QoS. Thus, the remaining bandwidth of the microwave frames is used to transmit the Ethernet services with lower priorities.

Due to the switching to the low modulation scheme, the bandwidth of the Ethernet services that are multiplexed into the multiplex unit becomes low, and the bandwidth of the Hybrid microwave frames also becomes low.

After switching


AM Features

Detected SNR

decreased

Prepare to Switch to 32QAM

Detected SNR

Increased64QAM 32QAM Massage32QAM 64QAM Message

Prepare to Switch to 64QAM

The AM technology can use the QPSK, 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM modulation schemes.

The lowest modulation scheme (also called reference mode) and highest modulation scheme (also called nominal mode) can be configured.

When the modulation schemes of the AM are switched, the transmit frequency, receive frequency, and channel spacing do not change.

When the AM modulation scheme is switched, the step by step mode is adopted. When the AM switches the modulation scheme, the services with a low priority are discarded but no bit errors or

slips occur in the services with a high priority. The speed of switching the modulation scheme meets the requirement for no bit error in the case of 100 dB/s fast fading.

Modulation Bandwidth Capacity

32QAM 28MHz 100 M

64QAM 28MHz 150 M


Hybrid Microwave Application

Internet

NodeB

All priority

All priority

256QAM@28MHz: 200M128QAM@28 MHz: 180M

256QAM@14 MHz: 100M

256QAM@14 MHz: 100MLow Priority NodeB

NodeB

NodeB

User 1

User 2

User n

VoIP

Video

Mobile

User 3

The Hybrid microwave ensures the service reliability and optimizes the service capacity

through the hybrid transmission of E1 services and Ethernet services, AM, and Ethernet

QoS control.


RTN 900V1R2 Microwave link

Radio Link Form TDM radio link Hybrid radio link Hybrid radio link that supports the XPIC

Type of the System Control, Cross-Connect, and Timing Board

CST/CSH CSH CSH

Type of the IF Board IF1 IFU2 IFX2

Modulation Mode QPSK/16QAM/32QAM/64QAM/128QAM

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM

Channel Spacing 3.5MHz/7MHz/14MHz/28MHz

37MHz/14MHz/28MHz/56MHz 28MHz/56MHz

AM Function No support support support

Protection function 1+1 HSB/FD/SD, N+1 1+1HSB/FD/SD, N+1 XPIC, 1+1 HSB/FD/SD, N+1

Ethernet supported or not No support support support


Contents




4. Hardware

5. Version Matching


Value of the OptiX RTN 900 (I)Value of the OptiX RTN 900 (I)Product Package OptiX RTN 900 V100R002

Features

The OptiX RTN 900 V100R002 is a new-generation hybrid/TDM MW transmission product developed by Huawei on the basis of the universal platform that integrates TDM, Hybrid, and Packet. This product supports features such as AM, synchronous Ethernet, Ethernet ring, and air interface LAG. Huawei is the only supplier that provides the MW transmission product integrating TDM, Hybrid, and Packet in the industry.

Smooth evolution: The universal platform supports the smooth evolution of TDM -> Hybrid -> Pure Packet.

Hybrid ring protection: Hybrid ring protection is implemented by jointly using the E1 SNCP and Ethernet ring protection switching (ERPS). The E1 SNCP and ERPS are independent of each other.

XPIC: When the XPIC and CCDP technologies are used, the transmitter transmits two electromagnetic waves whose polarization directions are orthogonal to each other to the receiver over the same channel. The receiver recovers the original two channels of signals after eliminating the interference between the two electromagnetic waves through the XPIC technology. In this manner, the transmission capacity is doubled.


Value of the OptiX RTN 900 (II)Value of the OptiX RTN 900 (II)Product Package OptiX RTN 900 V100R002

Features

. Eight QoS levels: Each Ethernet port supports eight levels of priority queue scheduling, that is, eight standard PHBs: BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7.

Modulation scheme: QPSK-256QAM (7 MHz to 56 MHz). It supports two modulation modes: fixed modulation and adaptive modulation (AM). AM dynamically works with QoS to ensure fine service quality.

Synchronous Ethernet: compliant with ITU-T G.8261, 8262, and 8264. The locked state is accurate to be smaller than 50 ppb, which meets the requirement.

Dynamic or static MW routing configuration of E2E OAM&P and E2E enhances the flexibility of MW networks and reduces the cost for maintenance.

Network-level protection schemes such as ERPS and MSTP are supported. The OptiX RTN 910 is built in with a packet processing platform with an

exchange capacity of 4.2 Gbit/s. The OptiX RTN 950 is built in with a packet processing platform with an

exchange capacity of 10 Gbit/s.


Main Features of the OptiX RTN 900 V100R002

Integrated Platform for TDM, Hybrid, and Packet Networks

Data Capability

• QoS queues of eight priorities

• E-LINE• E-LAN• Multi-protection

function: (LAG/MSTP/ERPS)

• Ethernet Clock Synchronization

• Eth OAM• 802.3ah• 802.1ag

• Same ODU in all scenarios (QPSK -> 256QAM integration)

• Microwave type (TDM microwave, Hybrid microwave)

• AM function• XPIC• 1+1, N+1

Service Capability RF Capability O&M Protection

Overview of Main FeaturesOverview of Main Features

• LMSP, SNCP• ERPS, LAG,

MSTP• Power supply

1+1 hot backup• Control,

switching, and clock board 1+1 hot backup

• Large capacity: 156E1, 1.6G

• Multi-service access capability (E1/FE/GE/STM-1)


System Capacity

Maximum Service Capacity Description

TDM service capacity over air interface

1xSTM1 IF1 board

Hybrid service capacity over air interface

363 Mbit/s High power ODU

183 Mbit/s Standard power ODU

Cross-connect capacity

Full time-division cross-connections at the VC-12, VC-3, or VC-4 level, which are equivalent to 32x32 VC-4s

OptiX RTN 950

Full time-division cross-connections at the VC-12, VC-3, or VC-4 level, which are equivalent to 8x8 VC-4s

OptiX RTN 910

Switching capacity

10 Gbit/s OptiX RTN 950

4.2 Gbit/s OptiX RTN 910


Ethernet Access Capacity

Equipment OptiX RTN 910 OptiX RTN 950

Switching capacity 4.2 Gbit/s 10 G bit/s

Service type ELINE, ELAN ELINE, ELAN

Number of services 1024 1024

Number of VLAN tags 4094 4094

Number of traffic classifications 1024 1024

Packet length 1518-9600 1518-9600

Size of MAC address table 16KB 16KB


QoS Solution

UNI:Identification by user Identification by servicePer user-service QOS assurance

NodeB 1

Internet

VoIP

Video

Voice

POptiX RTN 900 P

P P

OptiX RTN 900

Core

End to end QoS deployment

Type-based hierarchical service assurance: fine scheduling of multiple services per BS/user/user group to ensure the QoS

Maximizing business values: fine bandwidth control to make full use of network resources, containing more users

Network side: control over the DS-TE (a rigid channel similar to the SDH VC) based on planning

NodeB

NodeB

BTSNodeBNodeB

NodeB 2

NodeB 3NodeB n


VLAN Nesting (QinQ)

The existing 4K CVLAN tags are insufficient for service planning. VLAN IDs are conflicted between convergence services and between

the services traversing a third-party network. The transmission department of the carrier is separate from the

wireless department, and it is difficult for the transmission department to work with the wireless department for VLAN planning.

Background

Microwave/Optical ring

RNC

CVLAN=1

CVLAN=2CVLAN=3

CVLAN=1

CVLAN=2

CVLAN=5

SVLAN=1

SVLAN=2

Values and Highlights

2 VLAN resources are extended for the carrier.

1 The network configuration

and maintenance are simplified.

3 Packets on the customer's network are protected.

4 The VLAN customization

capability for the carrier is provided.

1. VLAN conflicts are avoided on the NodeB side. 2. The transmission department can complete VLAN planning independently. 3. The service configuration workload is reduced.

Application Scenario Scenario requirement: (1) CVLAN conflicts on the

BS side should be avoided.


Synchronous Ethernet

Scenario requirement(1) The packet network transmits backhual 2G/3

G wireless services. (2) Clock frequency synchronization is provided f

or 2G/3G wireless services.

Application Scenario 2

Acceptable cost because no additional configuration is required

High synchronization precision

Free from the impacts of the network load

Scenario description(1) In the case of 3G services, only clock synchronization is

required for technologies such as WCDMA. (2) In this case, the synchronous Ethernet technology can be

adopted to transmit clock information. The difference between the synchronous Ethernet technology and the ACR mode is that the clock information is stored at the physical layer in the synchronous Ethernet technology but is stored in services in ACR mode.

NodeBBSC/RNC

PSN network

Synchronization of the entire wireless network

BITST1/E1

cSTM-1

FE

NodeB

FE

GE

E1BTS

The gateway equipment adopts the BITS clock as the primary clock reference source.

Clock information is transmitted to the streams at the Ethernet physical layer at one end of an Ethernet link and is

extracted at the other end of the Ethernet link. Then the clock

information is transmitted level by level.

0 1 2Time

0 1 2Time

0 1 2Time

0 1 2Time

0 1 2Time



E-Line ServiceThe E-Line service is a point-to-point service form on the topology. The equipment transmits the packets or VLAN packets on a specified port on the user side to a port on the user side or network side or to the QinQ link on the network side, thus implementing point-to-point transparent transmission of user data.

According to transmission modes, E-Line services are classified into the following types:

(1) UNI-UNI Ethernet service

(2) UNI-NNI Ethernet service carried on a port

(3) UNI-NNI Ethernet service carried on a QinQ link


E-LAN ServiceThe E-LAN service is a multipoint-to-multipoint service form on the topology. The equipment forwards packets or VLAN packets on a specified port from the user side to multiple ports or to a PW or QinQ link on the network side, thus implementing multipoint-to-multipoint transparent transmission of user data. On the network side, the Ethernet services can be transmitted on a port or QinQ link. The QinQ link bearer means that an S-VLAN tag of the transport network is added to packets with the C-VLAN tag on the network of the user side, and thus the packets are labeled with two VLAN tags when traversing the transport network. This provides a simple L2VPN tunnel for users. With regard to the services carried on a QinQ link, the QoS can be ensured by configuring the QinQ policy.

E-LAN1 (region 1)

E-LAN2 (region 2)

BTS/NodeB MAC4

FE: No VLAN

BTS/NodeB MAC3

BTS/NodeB MAC2

BTS/NodeB MAC1

FE: VLAN2

FE: VLAN1

FE: VLAN1

BSC/RNC MAC4

BSC/RNC MAC5

Add VLAN2

MAC1

MAC2

MAC1/2 MAC1/2

MAC3/4

MAC1/2/3/4VLAN1

VLAN2

MAC3

MAC4

MAC3/4


X

Broadcasting packet

Broadcast storm happen

Shut down one port, ring broken, broadcast storm stop. XNormally, to

avoid Ethernet ring, this link is logically shut down

XOne link has physical faults

The link which shut down logically is reactived, Ring protection happen

MSTP The Multiple Spanning Tree Protocol (MSTP) is adopted for network loops. MSTP adopts an

algorithm to prune a looped network to a tree network without loops, thus preventing the increase and infinite loop of packets on the looped network.


ERPS

Spectrum resources in microwave networking are saved.

Ethernet services on the entire network are protected.

High switching performance is supported. The ring switching time is 200 ms.

Compared with 1+1 protection, less equipment is used in ring network protection, thus minimizing networking investments.

Microwave ring

Ring protection link

Service channel Any link is

faulty.

Service channel after switching

Service channel after switching

The link fault is rectified.

The service channel is recovered to the status before switching.

X

Activate a protection link and perform ring protection switching

Ethernet ring protection switching (ERPS) is applicable to ring physical networks. The ERPS protects the E-LAN services between various nodes on the ring. After a ring network adopts Ethernet ring protection, normally, the owner node blocks the port on one side on the ring to transmit services on the port of the other side, thus preventing service loops. When a link or an NE on the ring is faulty, the owner node unblocks its upstream port to transmit services on the faulty link or NE, thus implementing ring network protection.

Values of the ERPS

The RPL owner prevents services from entering the RPL.

Ring Protection Link

1. Select the shortest path from the service channels between microwave stations on the ring.

2. Specify a ring protection link that projects any microwave link on the ring.

3. Any faulty microwave link on the ring can activate the ring protection link.

4. A link fault on the ring can be rectified through automatic or manual switching.

Scenario Description


0 Mbit/s microwave link 1



LAG (IEEE 802.3ad)

How to transmit 300 Mbit/s services on a

200 Mbit/s air interface?




X

Multiple microwave links form a larger

logical pipe.

Main functions: 1. Increasing the link capacity 2. Improving link availability

Microwave/Optical ring

LAG

RNC

One or more Ethernet links are aggregated to form an link aggregation (LAG) so that the MAC customer regards the LAG as one link.

Load sharing by the LAG

Port protection

by the LAG


2

Links on the user side/air interface side are protected.

Multiple microwave links are aggregated to form one logical link, thus increasing the bandwidth of the logical link.

1

Scenario requirement:Multiple links exist between two stations.

Scenario description(1) When the traffic of one service exceeds the

transmission bandwidth of one physical link, the service can be transmitted on multiple links through traffic sharing.

(2) Links work in mutual protection mode.


Transmission capacity supported by one frequency point: 2x400 Mbit/s

Large-capacity Ethernet transmission The XPIC technology supports a single frequency point to transmit two-channel

signals, thus doubling the usage of spectrum resources. Up to 800 Mbit/s Ethernet throughput per carrier frequency is implemented.

The large-capacity transmission requirement of data services is met.

400

56 MHz

400

400

400

One frequency point can transmit two-channel signals.

XPIC Technology—Up to 800 Mbit/s Air-Interface Capacity


AM—Increasing the Bandwidth by Four TimesAM—Increasing the Bandwidth by Four Times

EOS Packet

Band 7G 7GDistance 30.6 km 30.6 km

Bandwidth 28 Mbit/s 28 Mbit/sModulation

scheme QPSK 128QAM

Transmission capacity 40 Mbit/s 200 Mbit/s

Important feature of the packet microwave: The modulation scheme can be automatically changed according to the transmission conditions of the air interface, thus ensuring high-level service transmission.

Increasing the bandwidth by four times on sunny days: Under the same conditions, the OptiX RTN equipment can support the 200 Mbit/s capacity but the EOS of the TMD can support only the 40 Mbit/s capacity.

Eight QoS levels on rainy days: The monitoring mechanism ensures the fine and hierarchical service transmission.

Encapsulation

AM

Element in Network Planning

Voice

Data

VoiceData

VoiceData

Real-time serviceNon-real-time service

256QAM

128QAM

64QAM

16QAM

32QAM

QPSK

Modulation scheme

99.999%

99.9%

99.99%

http://www.xfbbs.com/PhotoShow/986/Photo_Viewer_205569.html






Ethernet OAMBackground

IP-based networks cater for the development trend. Different from SDH services, Ethernet services do

not have the operation, management, or maintenance capabilities.

There are no methods or tools to rapidly and easily locate service link faults.

There are requirements for detecting the faults and performance of point-to-point Ethernet physical links between two pieces of directly connected equipment in the last mile.

A DCore AccessAccessME MEB C

IEEE 802.1ag802.3ah 802.3ah

Scenario description(1) CC: Link status and one-way

connectivity are detected in real time.(2) LB: Single-end location or detection is

performed, and two-way connectivity is detected.

(3) LT: Faults are located on site. (4) 802.3ah: The performance of the

physical link in the last mile is monitored and faults are located.

RNC


Clock Feature

Supporting the trace mode, hold-over mode, and free-run mode, which complies

with the ITU-T G.813 standard

Supporting the line clock source, tributary clock source, microwave clock source,

synchronous Ethernet clock source, and external clock signals

Supporting the SSM protocol and the extended SSM protocol. SSM information

can be transmitted with the synchronous Ethernet and external clock signals

through the SDH line and microwave.

Supporting re-timing of tributaries

Supporting the synchronous Ethernet function


Quotation rules for TDM MW 4E1 licenses

Quote the licenses expressed in 4E1s towards the intermediate frequency (IF). The corresponding IF board is the IF1, which is used as a quotation subitem of the IF board. Note: The E1/STM1 license for the OptiX RTN 600 is quoted according to NEs. The license strategy for the OptiX RTN 900 has been changed.

When licenses are expressed in 4E1s, if there are N (number) 4E1s in a direction, N (number) 4E1 licenses should be quoted for the direction.

The two IF boards should be configured with 1+1 configuration. The license strategy for the OptiX RTN 600 is that one piece of equipment is allocated with one 4E1 license for free. The

licenses are automatically allocated by using the Quoter software. Note that the license strategy for the OptiX RTN 900 has been changed. The licenses are no longer allocated for free. The licenses are automatically allocated upon charge by using the Quoter software.

Quote the licenses towards the IF. The corresponding IF board is the IF1, which is used as a quotation subitem of the IF board.

When licenses are expressed in STM-1s, if there are N (number) STM-1s in a direction, N (number) STM-1 licenses should be quoted for the direction.

The two IF boards should be configured with 1+1 configuration.

Quotation rules for TDM MW STM-1 licenses

Quotation rules for link transmission licenses for Hybrid MW air interface capacities

Quote the licenses towards the IF. The corresponding IF board is the IFU2/IFX2, which is used as a quotation subitem of the board.

For easy management of the network-wide MW capacity, the Link license specifications are normalized and classified into eight levels: 10M, 20M, 50M, 100M, 150M, 200M, 300M, and 400M. When quoting, quote the closest higher capacity. For example, if the customer requires the 160M capacity, quote a 200M license. Do not quote the 160M capacity with the sum of 10M plus 150M.

The two IF boards should be configured with 1+1 configuration. E1 service calculation method: 4E1 is equivalent to 8M. For example, 16E1 = 4*(4E1), which is equivalent to 32M, and

thus a 50M license should be quoted. Charge for capacity expansion: The fee for the original capacity should be excluded. When preparing a bill of quotation

(BOQ), quote the after-expansion capacity license to facilitate license delivery and project implementation. For example, the equipment on the existing network has a 20M license. The customer needs to expand the capacity of the equipment to 50M. In this case, quote 3*10M licenses. Note that the license delivered with the BOQ should still be a 50M license to ensure the license delivery for the expansion project. In addition, all factors regarding capacity expansion should be considered as a whole, such as the antenna size and link reserve.

Quote the licenses towards the IF. The corresponding IF board is the IFU2/IFX2, which is used as a quotation subitem of the board.

Quotation rules for AM licenses

License Strategy for the OptiX RTN 900


Contents



3. Features and functions

4. Hardware

5. Version matching


Hardware Features of the OptiX RTN 900 V1R2—IDU

• RTN 910 IDU

• RTN 950 IDU

1U Supports microwave in up to two

directions. Supports the 1+1 protection

(HSB/SD/FD). Supports the 2+0 configuration Support XPIC

2U Support microwave in up to six

direction Support the 1+1 protection

(HSB/SD/FD) Support N+0 (N≤5) Support N+1 (N ≤4) Support XPIC

• The IDUs of the OptiX RTN 910 and OptiX RTN 950 adopt the card plug-in design. The OptiX RTN 910 and OptiX RTN 950 can provide different functions by configuring different types of boards.


Hardware Features of the OptiX RTN 900 V1R2—Boards

EM6T: 4xFE (RJ45)+2xGE(RJ45) Board

AUX :Assistant Channel Interface Board (Only for RTN 950)

IFU2: Hybrid IF Board

IF Board & Service Board

CSH: Hybrid System Control and Cross-connect board

CSHA: 16*E1+2*FE+2*GE

System Control and Cross-connect Switch Board

CSHB: 32*E1+2*FE+2*GE

CSHC: 16*E1+2*STM-1+2*FE+2*GE

CSTA: 16*E1+2*STM-1

CST: TDM System Control and Cross- connect Board

IFX2: Hybrid XPIC IF Board

IF1: TDM IF Board

EM6F: 4xFE (RJ45)+2xGE(SFP) Board

SP3S: 16xE1 Board

SP3D: 32xE1 Board

SL1D: 2xSTM-1(O) Board

910

950


Hardware Features of the OptiX RTN 900 V1R2—IDU 910

Board Name Description Valid Slot

CSHA(A/B) 16*E1 (120-ohm/75-ohm)+2*FE(RJ45)+2*GE(RJ45) Hybrid control, switching, and timing board. Slot 1 and slot 2

CSHB(A/B) 32*E1 (120-ohm /75-ohm)+2*FE(RJ45)+2*GE(RJ45) Hybrid control, switching, and timing board. Slot 1 and slot 2

CSHC(A/B) 16*E1 (120-ohm /75-ohm)+2*STM-1(SFP)+2*FE(RJ45)+2*GE(SFP) Hybrid control, switching, and timing board. Slot 1 and slot 2

CSTA(A/B) 16*E1 (120-ohm /75-ohm)+2*STM-1(SFP) TDM control, switching, and timing board. Slot 1 and slot 2

IFU2 Hybrid IF board Slot 3 and slot 4

IFX2 Hybrid XPIC IF board Slot 3 and slot 4

IF1 TDM IF board Slot 3 and slot 4

EM6T 4*FE(RJ45)+2*GE(RJ45) Ethernet interface board Slot 3 and slot 4

EM6F 4*FE(RJ45)+2*GE(SFP) Ethernet interface board Slot 3 and slot 4

SP3S(A/B) 16*E1 (120-ohm/75-ohm)tributary board Slot 3 and slot 4

SP3D(A/B) 32*E1 (120-ohm/75-ohm) tributary board Slot 3 and slot 4

SL1D 2*STM-1 Optical interface board Slot 3 and slot 4

PIU Power board Slot 5

FAN FAN board Slot 6

● Each of the CSHA, CSHB, CSHC and CSTA boards occupies two slots. Each board occupies slot 1 and slot 2 at the same time.● All the boards, except for the power board, support the hot plugging.

Paired slots

442 (width) x 220 (depth) x 44.45 (height) mm


PIU　

FAN　

IFU2/IFX2/IF1

CSHA/CSHB/CSHC/CSTASlot 5 Slot 6 Slot 1/2

Slot 3 Slot 4

• 1+0: One direction

• 1+1: One direction

PIU　

FAN　

IFU2/IFX2/IF1 IFU2/IFX2/IF1


Slot 3 Slot 4

• 1+0: Two direction

PIU　

FAN　

IFU2/IFX2/IF1 IFU2/IFX2/IF1


Slot 3 Slot 4

PIU　

FAN　

IFX2 IFX2


Slot 3 Slot 4




Board Name Description Valid Slot

CSH Hybrid control, switching, and timing board. Slot 7 and slot 8

CST TDM control, switching, and timing board. Slot 7 and slot 8

AUX Auxiliary interface board Slot 1~slot 6

IFU2 Hybrid IF board Slot 1~slot 6

IFX2 Hybrid XPIC IF board Slot 1~slot 6

IF1 TDM IF board Slot 1~slot 6

EM6T 4*FE(RJ45)+2*GE(RJ45) Ethernet interface board Slot 1~slot 6

EM6F 4*FE(RJ45)+2*GE(SFP) Ethernet interface board Slot 1~slot 6

SP3S(A/B) 16*E1 (120-ohm/75-ohm)tributary board Slot 1~slot 6

SP3D(A/B) 32*E1 (120-ohm/75-ohm) tributary board Slot 1~slot 6

SL1D 2*STM-1 Optical interface board Slot 1~slot 6

PIU Power board Slot 9 and slot 10

FAN FAN board Slot 11

Three groups of paired slots

442 (width) x 220 (depth) x 88.9 (height) (mm)


Interconnection of IF Boards

OptiX RTN 600 V100R003


IF0 IF1 IFH1 (OptiX RTN 605) IFH2 IFX

IF1 No Yes No No Yes

IFU2 No No Yes Yes No

IFX2 No No No No No



IFE2 IFU2 IFX2

IF1 No No No

IFU2 Yes (Only Pure ETH)

Yes (Only Pure ETH) No

IFX2 No No Yes

Air interface interconnection between the OptiX RTN 900 V100R002 and the OptiX RTN 600 V100R003

Air interface interconnection between the OptiX RTN 900 V100R002 and the OptiX RTN 900 V100R001

The IFU2 can be interconnected with the IFE2 only in the case of pure Ethernet services. When E1 services are transmitted with Ethernet services on the IFU2, the IFU2 cannot be interconnected with the IFE2.

The IF1 of the OptiX RTN 900 V100R002 works in 128QAM/28 MHz mode and can be interconnected with the IFX of the OptiX RTN 600 V100R003.

The overall principles for air-interface interconnection are as follows: Boards with the same name can be interconnected. Hybrid IF boards can be interconnected. TDM IF boards can be interconnected. Hybrid IF boards can be interconnected with packet IF boards when transmitting pure Ethernet services.


Contents




4. Hardware

5. Version Matching


ODU Introduction

ODU SeriesSoftware

Version

Supported

Modulation

Scheme

Band (GHz)Channel

Spacing (MHz)

Little

Capacity

ODU

LP 2.09 QPSK~16QAM 7/8/11/13/15/18/23 3.5/7/14/28

LPA 1.10 QPSK~16QAM7/8/11/13/15/18/23/26/32/3

83.5/7/14/28

Standard

power

SPA 2.09 QPSK~128QAM 6/7/8/11/13/15/18/23 3.5/7/14/28

SP 1.10 QPSK~256QAM 7/8/11/13/15/18/23/26/38 3.5/7/14/28

High power HP 1.10 QPSK~256QAM7/8/11/13/15/18/23/26/32/3

87/14/28/56

When the OptiX RTN 910 and OptiX RTN 950 match SPA ODUs, the supported maximum modulation scheme is 128QAM, and the 256QAM modulation scheme is not supported.

Only HP ODUs support 56 MHz channel spacing.

Note: ODUs of the same series and the same types must be used on the same link.


Matching Between IDUs and ODUs

IDU IF Board ODU Type Remarks

IDU

910/950

IF1 LP/LPA/SP/SPA/HP 1) Match LP/LPA ODU, the support

modulation scheme is QPSK~16QAM;

2) Match SPA/SP/HP ODU, the support

modulation scheme is

QPSK~128QAM.

IFU2SP/SPA/HP

1) Match SP/HP ODU, the support


QPSK~256QAM;

2) Match SPA ODU, the support


QPSK~128QAM, not support

256QAM.

IFX2


Version Matching

Name Description Matched Version

U2000 NMS V100R001C00

WEBLCT Site commissioning tool V100R001C00

DC Upgrade tool V200R007C02

Matching of the NMS and Tools

www.huawei.comThank you

1- optix rtn 900 v100r002 product description

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