RTN 910 Product Description(V100R001C00_01)

OptiX RTN 910 Radio Transmission System V100R001C00

Product Description

Issue 01

Date 2009-04-30

HUAWEI TECHNOLOGIES CO., LTD.

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd i

Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

OptiX RTN 910 Radio Transmission System Product Description About This Document

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd iii

About This Document

Purpose This document describes the features, structure, configuration, networking and application, network management system (NMS), and performance indexes of the OptiX RTN 910 radio transmission system, thus providing comprehensive information of the OptiX RTN 910 product for readers.

Related Versions The following table lists the product versions related to this document.

Product Name Version

OptiX RTN 910 V100R001C00

OptiX iManager T2000 V200R007C03

Intended Audience This document is intended for network planning engineers.

Before you read this document, ensure that you have acquired the basic knowledge of digital microwave communication.

Organization This document is organized as follows.

Chapter Content

1 Introduction Describes the network application and components of the OptiX RTN 910.

2 Functions and Features Describes the features and system architecture of the IDU.

3 Product Structure Describes the features, system architecture, board configuration, and signal processing flow of the OptiX RTN 910.

About This Document OptiX RTN 910 Radio Transmission System

Product Description

iv Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

Chapter Content

4 Services Describes the service features of the OptiX RTN 910.

5 Network Management System

Describes the network management (NM) solution for the OptiX RTN 910, and also the various NM software that contributes to this solution.

6 Performance Describes the performance indexes of the OptiX RTN 910.

Conventions

Symbol Conventions The symbols that may be found in this document are defined as follows.

Symbol Description

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Indicates a tip that may help you solve a problem or save time.

Provides additional information to emphasize or supplement important points of the main text.

General Conventions The general conventions that may be found in this document are defined as follows.

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in boldface. For example, log in as user root.

Italic Book titles are in italics.

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OptiX RTN 910 Radio Transmission System Product Description About This Document

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd v

Update History Updates between document issues are cumulative. Therefore, the latest document issue contains all updates made in previous issues.

Updates in Issue 01 (2009-04-30) Based on Product Version V100R001C00 This document is the first release of the V100R001C00 version.

OptiX RTN 910 Radio Transmission System Product Description Contents

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd vii

Contents

About This Document................................................................................................................... iii

1 Introduction.................................................................................................................................1-1 1.1 Network Application .....................................................................................................................................1-1 1.2 Components...................................................................................................................................................1-2

2 Functions and Features .............................................................................................................2-1 2.1 Frequency Band ............................................................................................................................................2-1 2.2 Packet Microwave.........................................................................................................................................2-1 2.3 Modulation Mode..........................................................................................................................................2-2

2.3.1 Fixed Modulation.................................................................................................................................2-2 2.3.2 Adaptive Modulation ...........................................................................................................................2-2

2.4 RF Configuration Modes...............................................................................................................................2-3 2.5 Capacity ........................................................................................................................................................2-4

2.5.1 Air Interface Capacity ..........................................................................................................................2-4 2.5.2 Switching Capacity ..............................................................................................................................2-4

2.6 Interfaces.......................................................................................................................................................2-4 2.6.1 Microwave Interface ............................................................................................................................2-4 2.6.2 Service Interfaces.................................................................................................................................2-5 2.6.3 Management and Auxiliary Interfaces .................................................................................................2-6

2.7 Automatic Transmit Power Control...............................................................................................................2-6 2.8 MPLS/PWE3 Support Capability..................................................................................................................2-7 2.9 Ethernet Service Processing Capability.........................................................................................................2-8 2.10 QoS..............................................................................................................................................................2-8 2.11 Clock Features.............................................................................................................................................2-9 2.12 Protection Scheme.....................................................................................................................................2-10 2.13 Network Management ...............................................................................................................................2-10 2.14 Easy Installation ........................................................................................................................................2-11 2.15 Easy Maintenance .....................................................................................................................................2-11

3 Product Structure........................................................................................................................3-1 3.1 System Architecture ......................................................................................................................................3-1 3.2 Hardware Structure .......................................................................................................................................3-2

3.2.1 IDU ......................................................................................................................................................3-3 3.2.2 ODU.....................................................................................................................................................3-4

Contents OptiX RTN 910 Radio Transmission System

Product Description

viii Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

3.3 Software Structure.........................................................................................................................................3-5 3.3.1 NMS Software .....................................................................................................................................3-5 3.3.2 IDU Software.......................................................................................................................................3-5 3.3.3 ODU Software .....................................................................................................................................3-6

3.4 Service Signal Flow ......................................................................................................................................3-6

4 Services.........................................................................................................................................4-1 4.1 Ethernet Services...........................................................................................................................................4-1 4.2 IMA/ATM Services .......................................................................................................................................4-3 4.3 CES Services.................................................................................................................................................4-4

5 Network Management System ................................................................................................5-1 5.1 Network Management Solution.....................................................................................................................5-1 5.2 T2000 LCT....................................................................................................................................................5-1 5.3 T2000 ............................................................................................................................................................5-3 5.4 T2100 ............................................................................................................................................................5-3

6 Performance ................................................................................................................................6-1 6.1 RF Performance ............................................................................................................................................6-1

6.1.1 Microwave work modes.......................................................................................................................6-1 6.1.2 Frequency Band ...................................................................................................................................6-2 6.1.3 Receiver Sensitivity .............................................................................................................................6-3 6.1.4 Transceiver Performance......................................................................................................................6-6 6.1.5 IF Performance.....................................................................................................................................6-8 6.1.6 Baseband Signal Processing Performance of the Modem....................................................................6-9

6.2 Packet Service Capability..............................................................................................................................6-9 6.3 Equipment Reliability ...................................................................................................................................6-9

6.3.1 Component Reliability .......................................................................................................................6-10 6.3.2 Link Reliability ..................................................................................................................................6-10

6.4 Interface Performance .................................................................................................................................6-10 6.4.1 E1 Interface Performance...................................................................................................................6-10 6.4.2 Ethernet Interface Performance..........................................................................................................6-11 6.4.3 Auxiliary Interface Performance ........................................................................................................6-13

6.5 Clock Timing and Synchronization Performance........................................................................................6-14 6.6 Integrated System Performance...................................................................................................................6-14

A Glossary .................................................................................................................................... A-1

B Acronyms and Abbreviations ................................................................................................B-1

OptiX RTN 910 Radio Transmission System Product Description 1 Introduction

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd 1-1

1 Introduction

The OptiX RTN 910 is one of the series products of the OptiX RTN 900 radio transmission system.

1.1 Network Application The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It can provide a seamless microwave transmission solution for a mobile communication network or private network.

The OptiX RTN 900 products are available in two types: OptiX RTN 910 and OptiX RTN 950. The IDU of the OptiX RTN 910 is 1U high and supports one or two IF boards. The IDU of the OptiX RTN 950 is 2U high and supports one to six IF boards. The users can choose an appropriate type according to the actual requirements.

The OptiX RTN 910 provides several types of service interfaces and facilitates installation and flexible configuration. It supports the smooth upgrade from the TDM microwave to the hybrid microwave, and from the hybrid microwave to the packet microwave. The solution can evolve based on the service changes that may occur due to radio mobile network evolution. Thus, this solution can meet the transmission requirements of not only 2G and 3G networks, but also future LTE and 4G networks.

Figure 1-1 shows the packet microwave transmission solution that is provided by the OptiX RTN 910 for the mobile communication network.

1 Introduction OptiX RTN 910 Radio Transmission System

Product Description

1-2 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

Figure 1-1 Packet microwave transmission solution provided by the OptiX RTN 910

Regional BackhaulNetwork

OptiX RTN 910 BTSNodeB BSCRNC

FEE1

IMA E1

IMA E1FEE1

E1IMA E1

E1FE

FE/GE

E1

GEE1

FE

OptiX RTN 950

In the solutions, the local backhaul network is optional. The OptiX RTN 910 can be connected to the

RNC or the BSC directly. When the OptiX RTN 910 supports the microwaves in three directions or more, you can adopt the

NE cascading mode or use the OptiX RTN 950, which is more powerful.

1.2 Components The OptiX RTN 910 adopts a split structure. The system consists of the IDU 910 and the ODU. An ODU is connected to an IDU through a coaxial cable.

IDU 910 IDU 910 is the indoor unit of an OptiX RTN 910 system. It accesses services, performs multiplexing/demultiplexing and IF processing of the services, and provide system control and communication function.

Table 1-1 describes the basic features of the IDU 910.

Table 1-1 Introduction of the IDU 910

Item Performance

Chassis height 1U

Pluggable Supported

Number of microwave directions 1–2

OptiX RTN 910 Radio Transmission System Product Description 1 Introduction


Item Performance

RF configuration mode 1+0 non-protection configuration 2+0 non-protection configuration 1+1 protection configuration

Figure 1-2 IDU 910

ODU The ODU is the outdoor unit of the OptiX RTN 900. It performs frequency conversion and amplification of signals.

The OptiX RTN 900 series products share one set of OptiX RTN 600 ODUs. The OptiX RTN 910 support standard power ODU and high power ODU.

Table 1-2 ODUs supported by the OptiX RTN 910

Description Item

Standard Power ODU High Power ODU

ODU type SP and SPA HP

Frequency band 7/8/11/13/15/18/23/26/38 GHz (SP ODU) 6 GHz (SPA ODU)

7/8/11/13/15/18/23/26/32/38 GHz

Microwave modulation scheme

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM (SP ODU) QPSK/16QAM/32QAM/64QAM/128QAM (SPA ODU)

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

Microwave modulation scheme

7/14/28 MHz 7/14/28/40/56 MHz

1 Introduction OptiX RTN 910 Radio Transmission System

Product Description


There are two methods of mounting the ODU and the antenna: direct mounting and separate mounting.

The direct mounting method is normally adopted when a small-diameter and single-polarized antenna is used. In this situation, if one ODU is configured for one antenna, the ODU is directly mounted at the back of the antenna. If two ODUs are configured for one antenna, an RF signal combiner/splitter (hereinafter referred to as a hybrid coupler) must be mounted to connect the ODUs to the antenna. Figure 1-3 shows the direct mounting method.

Figure 1-3 Direct mounting

The separate mounting method is adopted when a double-polarized antenna or big-diameter and single-polarized antenna is used. Figure 1-4 shows the separate method. In this situation, a hybrid coupler can be mounted. That is, two ODUs share one feed boom.

Figure 1-4 Separate mounting

OptiX RTN 910 Radio Transmission System Product Description 2 Functions and Features


2 Functions and Features

The OptiX RTN 910 provides plentiful functions and features to ensure the quality and efficiency of service transmission.

2.1 Frequency Band The OptiX RTN 910 provides the products of full frequency bands.

When the OptiX RTN 910 uses the standard power ODU, the 6, 7, 8, 11, 13, 15, 18, 23, 26, and 38 GHz frequency bands are supported.

When the OptiX RTN 910 uses the high power ODU, the 7, 8, 11, 13, 15, 18, 23, 26, 32, and 38 GHz frequency bands are supported.

Related Concepts 6.1.2 Frequency Band

2.2 Packet Microwave The packet microwave refers to the packet microwave transmission solution wherein various services can be encapsulated through the PWE3 technology and then transmitted in packet mode. The packet microwave supports the AM function. By using packet microwave, the utilization of the microwave bandwidth is improved and the statistical multiplexing advantage of the packet network is extended to the access layer.

The packet microwave solution supports the MPLS and PWE3 technologies. When the TDM E1 service is accessed, the packet microwave solution implements the CES by using the PWE3 technology to encapsulate the TDM E1 service into PW packets. When the IMA E1 service or Ethernet service is accessed, the packet microwave solution encapsulates the IMA E1 service into PW packets directly by using the PWE3 technology. The PW packets generated after the encapsulation of various services are transmitted to the microwave port after they are processed uniformly by the packet processing platform, and then mapped into microwave frames. Thus, various services are transmitted uniformly by using the packet microwave solution.

2 Functions and Features OptiX RTN 910 Radio Transmission System

Product Description


Figure 2-1 Packet microwave

Everything over packet

ODU

Ethernet

TDM E1

CES

PacketProcessing

IDU

IMA E1Statistical-mux oremulation

2.3 Modulation Mode The packet microwave supports fixed modulation and adaptive modulation.

2.3.1 Fixed Modulation Fixed modulation refers to a modulation scheme wherein a modulation mode is adopted invariably when the radio link is running.

When the OptiX RTN 910 uses the fixed modulation scheme, you can set the adopted modulation mode by using the software.

2.3.2 Adaptive Modulation Adaptive modulation (AM) is a technology wherein the modulation scheme can be adjusted automatically according to the channel quality.

In the case of the same channel spacing, the microwave service bandwidth varies according to the modulation scheme. The higher the modulation efficiency, the higher the bandwidth of the transmitted services. When the channel quality is favorable (such as on days when the weather is favorable), the equipment adopts a higher modulation scheme to try to transmit more user services. In this manner, the transmission efficiency and the spectrum utilization of the system are improved. When the channel quality is degraded (such as on days when the weather is stormy and foggy), the equipment adopts a lower modulation scheme to transmit only the services with a higher priority within the available bandwidth and to discard the services with a lower priority. In this manner, the anti-interference capability of a link is improved and the link availability of the services with a higher priority is ensured.

When the packet microwave equipment adopts the AM technology, it controls service transmission based on the service bandwidth and QoS policy corresponding to the current modulation scheme. Service packets are groomed into the queues of different priorities according to the service type identifiers. The services in the queues of different priorities are transmitted to the microwave port through the SP or WFQ algorithm. When the queues of certain priorities are congested because of insufficient microwave bandwidth, the queues of these priorities discard certain or all services through tail discarding or the WRED algorithm.

Figure 2-2 shows the service change caused by the AM. The blue part indicates the packet services. The closer to the edge of the blue part, the lower the priority of the packet services.



The bandwidth for the packet services varies according to the channel conditions. When the channel quality is poor, the packet services of a lower priority are discarded.

Figure 2-2 AM

256QAM32QAM

QPSK

256QAM

ChannelCapability

PacketServices

128QAM

32QAM

128QAM

64QAM

64QAM

16QAM16QAM

The AM technology adopted by the OptiX RTN 910 has the following features:

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

The lowest modulation scheme (also called "reference mode") and the highest modulation scheme (also called "nominal mode") actually used by the AM can be configured.

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

When the modulation schemes of AM are switched, the step by step switching mode must be adopted.

When the AM switches the modulation schemes to a lower one, the services of the low priority are discarded but no bit errors or slips occur in the services of the high priority. The speed of switching the modulation schemes meets the requirement for no bit error in the case of 100 dB/s fast fading.

2.4 RF Configuration Modes The OptiX RTN 910 supports the 1+0 non-protection configuration, the 2+0 non-protection configuration and the 1+1 protection configuration.

Table 2-1shows the RF configuration modes that are supported.


Product Description


Table 2-1 RF configuration modes

Configuration Mode Maximum Number of Configuration

1+0 non-protection configuration 2

1+1 protection configuration (1+1 HSB/FD/SD)

1

2+0 non-protection configuration 1

2.5 Capacity The OptiX RTN 910 has a large capacity.

2.5.1 Air Interface Capacity The microwave air interface capacity depends on the specific microwave modulation scheme.

The maximum Ethernet throughput of each channel of packet microwave is 420 Mbit/s when the high power ODU is used or 210 Mbit/s when the standard power ODU is used.

Related Concepts 6.1.1 Microwave Modulation Schemes

2.5.2 Switching Capacity The OptiX RTN 910 has a built-in packet processing platform with the switching capacity of 3 Gbit/s.

2.6 Interfaces The OptiX RTN 910 has several interface types.

2.6.1 Microwave Interface The OptiX RTN 910 provides a microwave interface through the IF board and the ODU that is connected to the IF board. Each microwave interface transmits one channel of microwave service. In addition, it transmits various auxiliary services or paths through the microwave overhead.

Table 2-2 lists the auxiliary services or paths provided by each microwave interface.

Table 2-2 Auxiliary services or paths provided by each microwave interface

Service/Path Type Quantity Rate

Synchronous data service 1 64 kbit/s

Orderwire phone service 1 64 kbit/s



Service/Path Type Quantity Rate

PTP path 1 64 kbit/s

The PTP path is used to transmit PTP (namely, IEEE 1588V2 protocol) packets to transport the high-precision time/clock on radio links.

2.6.2 Service Interfaces The system control, switching, and timing board of the OptiX RTN 910 provides several service interfaces. In addition, the type and number of service interfaces supported by the equipment can be extended by configuring service interface boards.

Table 2-3 lists the type and number of the service interfaces provided by the system control, switching, and timing board of the OptiX RTN 910.

Table 2-3 Type and number of the service interfaces provided by the system control, switching, and timing board

Type of System Control, Switching, and Timing Board

Provided Service Interface Quantity

75-ohm E1 interface (supporting the TDM E1, IMA E1, and ML-PPP E1)

16 CXPAR

10/100BASE-T(X) interface 4

120-ohm E1 interface (supporting the TDM E1, IMA E1, and ML-PPP E1)

16 CXPBR

10/100BASE-T(X) interface 4

Table 2-4 lists the type and number of the service interfaces supported by adding service interface boards to the OptiX RTN 910.

Table 2-4 Type and number of the service interfaces supported by adding service interface boards

Type of Service Interface Board

Maximum Number of Boards

Provided Service Interface

Number of Interfaces Provided by One Board

EF8T 1 FE electrical interface: 10/100BASE-T(X)

8

EF8F 1 FE optical interface 8

EG2 1 GE optical interface 2

ML1 1 75-ohm E1 interface (supporting the TDM E1,

16


Product Description


Type of Service Interface Board

Maximum Number of Boards

Provided Service Interface

Number of Interfaces Provided by One Board

IMA E1, and ML-PPP E1)

ML1A 1 120-ohm E1 interface (supporting the TDM E1, IMA E1, and ML-PPP E1)

16

"Maximum Number of Boards" in the Table 2-4 is the maximum number calculated when at least one IF board is configured.

2.6.3 Management and Auxiliary Interfaces The OptiX RTN 910 provides the management and auxiliary interfaces through the system control, switching, and timing board .

Table 2-5 Type and number of management and auxiliary interfaces

Interface Specifications Connector Quantity and Type

Clock/Timing interface

Common interface for 120-ohm clock or time 2 (RJ-45)

10/100BASE-T(X) Ethernet NM interface

NM serial interface

1 (RJ-45) Management interface

10/100BASE-T(X) NE cascade interface 1 (RJ-45)

Orderwire phone interface 1 (RJ-45) Auxiliary interface

Synchronous data interface 1 (RJ-45)

Three external alarm input interfaces Alarm interface

One external alarm output interface

1 (RJ-45)

The clock/time interfaces can be used as the clock interfaces or the time interfaces. If the interfaces are used as the clock interfaces, they support 2048 kbit/s mode or 2048 kHz mode. If the interfaces are used as the time interfaces, they support 1PPS + Time Information mode or DCLS mode.

2.7 Automatic Transmit Power Control The automatic transmit power control (ATPC) function enables the output power of the transmitter to automatically trace the level fluctuation at the receive end. This reduces the interference with neighboring systems and residual BER.



2.8 MPLS/PWE3 Support Capability The OptiX RTN 910 adopts the MPLS that is optimized for the telecom bearer network as the packet forwarding mechanism to implement the packet transmission of telecom-level services. The OptiX RTN 910 adopts the PWE3 technology as the service bearer technology to implement the MPLS network access of various types of services.

MPLS Support Capability

Table 2-6 MPLS features supported by the OptiX RTN 910

Feature Description

The equipment supports basic MPLS functions and service forwarding, and uses the LDP and the RSVP-TE protocol to create and maintain the PWs and LSPs respectively.

The equipment uses the LSP tunnel technology and the pseudo wire emulation edge to edge (PWE3) technology to form an MPLS network, where multiple services can be accessed.

The equipment supports static LSPs and dynamic LSPs.

Basic MPLS functions

The equipment supports MPLS multicast.

The equipment supports MPLS OAM in compliance with ITU-T Y.1711.

MPLS OAM

The equipment supports the LSP ping and LSP traceroute. The equipment also uses the MPLS echo request and MPLS echo reply to test the usability of an LSP.

The equipment supports the LSP RR and LSP FRR. MPLS protection

The equipment supports LSP 1:1 protection scheme and 1+1 protection scheme.

Others The equipment supports the MPLS QoS.

PWE3 Support Capability

Table 2-7 Capabilities of the OptiX RTN 910 of supporting PWE3

Feature Description

The equipment supports the emulation TDM E1 services of the structured emulation mode and the non-structured emulation mode. The equipment supports the transmission of emulation services over an LSP tunnel. The equipment supports the jitter cache technology. The equipment adopts the re-timing synchronization mode and adaptive synchronization mode to recover the service clock.

Basic PWE3 functions

The equipment adopts the N-to-one or one-to-one mode to emulate ATM/IMA services, and supports the transmission of a single ATM cell or the cascaded transmission of multiple cells (The maximum number of concatenations is 32). The equipment supports the transmission of


Product Description


Feature Description ATM/IMA emulation services over an LSP tunnel.

The equipment supports the encapsulation of the Ethernet and the transmission over an LSP tunnel to implement E-Line services.

Supports static PWs and dynamic PWs, and adopts the LDP protocol to set up and maintain dynamic PWs.

Others The equipment supports the conversion of different QoSs for processing based on the service type.

2.9 Ethernet Service Processing Capability The OptiX RTN 910 provides the powerful Ethernet service processing capability.

Table 2-8 Table 4-7 Ethernet service processing capability

Item Performance

Service frame format Ethernet II, IEEE 802.3, and IEEE 802.1q/p

Ethernet service type E-Line

VLAN Adding, deletion, and exchange of IEEE 802.1q/p compliant VLAN tags

MPLS Basic MPLS functions and service forwarding PW setup and maintenance by using LDP LSP setup and maintenance by using RSVP-TE

Flow control IEEE 802.3x

Link aggregation Supported

Ethernet performance monitoring

IETF RFC 2819 compliant RMON performance monitoring

2.10 QoS OptiX RTN 910 provide improved quality of service (QoS) capabilities and support the following eight per-hop behaviors (PHBs): BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7. Thus, the OptiX RTN 910 can offer various QoS levels of service guarantees and build an integrated network to carry data, voice, and video services.

Table 2-9 QoS features

Feature Performance

Traffic Classifies the traffic over an Ethernet interface by the following fields:



Feature Performance classification DSCP or IP precedence in an IP packet

EXP in an MPLS packet IEEE 802.1p priority in an S-VLAN/C-VLAN packet

Traffic policing Supports CAR and policies traffic in the following two modes: Color-blind mode Color-aware mode

Queue scheduling Each Ethernet port supports the queue scheduling of eight priorities. Schedules the CS7, CS6, and EF queues in Strict Priority (SP) mode. Schedules the AF1, AF2, AF3, and AF4 queues in Weighted Fair Queuing (WFQ) mode.

Schedules the BE queues in SP mode.

2.11 Clock Features The OptiX RTN 910 supports the physical-layer clock synchronization, IEEE 1588V2 time/clock synchronization, and clock synchronization for CES services.

Physical layer clock synchronization mechanism OptiX RTN 910supports extracting the clock information from the following transmission links:

Synchronous Ethernet link E1 link Radio link

IEEE 1588V2 Clock Synchronization and Time Calibration Mechanism The equipment can use the IEEE 1588V2 protocol to achieve the clock timing

synchronization and time information synchronization. The equipment supports the boundary clock, ordinary clock, and transparent clock

(including the end-to-end transparent clock and peer-to-peer transparent clock). Each port of the equipment can be configured with different clocks according to the requirement.

The equipment supports the clock source protection switching.

physical layer clock synchronization mechanism OptiX RTN 910supports the following mode:

Self-adaptive Retiming


Product Description


2.12 Protection Scheme The OptiX RTN 910 provides complete protection schemes.

Table 2-10 Protection schemes

Protection Object Protection Mode

Equipment level protection

Input power supply 1+1 hot backup

Radio link protection 1+1 HSB/SD/FD

1+1 MPLS tunnel protection

1:1 MPLS tunnel protection

MPLS

LSP FRR protection

Ethernet LAG protection

ATM over E1 IMA protection

Network level protection

Packet E1 ML-PPP protection

2.13 Network Management The OptiX RTN 910 supports multiple network management (NM) modes, and provides complete NM information exchange schemes.

NM Mode The OptiX RTN 910 supports the following functions:

Accessing the iManager T2000 LCT directly at the near end of the NE to perform the single-point management for the NE

Using the OptiX iManager T2000 to manage all OptiX RTN NEs on the transmission network and the NEs of Huawei optical transmission products in the centralized manner and manage the transmission networks in the unified manner

NM Information Exchange Schemes At the physical layer, the OptiX RTN 910 supports the inband DCN to ensure the exchange of NM information. The OptiX RTN 910 adopts the inband DCN solution. Therefore, the dedicated DCN paths are not required and the cost of network construction is saved. The types of the ports that support the inband DCN are as follows:

Microwave port FE/GE port E1 Port



2.14 Easy Installation The OptiX RTN 910 supports several installation modes. Therefore, the installation is flexible and convenient.

The IDU can be installed in the following modes:

In a 300 mm ETSI cabinet In a 600 mm ETSI cabinet In a 450 mm 19-inch cabinet In a 600 mm 19-inch cabinet In an open cabinet On the wall On a table

The ODU supports two installation modes: direct mounting and separate mounting.

2.15 Easy Maintenance The OptiX RTN 910 provides several maintenance features. Therefore, it can effectively reduce the cost of equipment maintenance.

The OptiX RTN 910 supports the unified management of the microwave transmission network and the optical transmission network at the network layer by using the OptiX iManger T2000.

All the indicators and cable interfaces of the IDU are available on the front panel. Each board of the IDU has the running and alarm status indicators. The OptiX RTN 910 provides plentiful alarms and performance events. The OptiX RTN 910 supports RMON performance events. The OptiX RTN 910 supports the MPLS OAM function. The OptiX RTN 910 supports the monitoring of key radio transmission performance

specifications such as the microwave transmit power and the RSSI. The OptiX RTN 910 supports various loopback functions of service ports and IF ports. The OptiX RTN 910 is embedded with a test system. You can perform the PRBS test of

an IF port when no special test tools are available. The CF card that stores the data configuration file and the software can be plugged.

Therefore, you can load the data or upgrade the software by replacing the CF card. Two sets of software and data are stored in the flash memory of the control, switching,

and timing board to facilitate the smooth upgrade. The OptiX RTN 910 supports the regular backup and restoration of the NE database

remotely by using the T2000. The OptiX RTN 910 supports the remote loading of the NE software and data by using

the T2000 to provide a complete NE upgrade solution. Thus, the entire network can be upgraded rapidly.

The OptiX RTN 910 supports the NSF function. When the soft reset is performed on the control, switching, and timing board, the data still can be forwarded normally, thus implementing the smooth software upgrade.


Product Description


The OptiX RTN 910 supports the hot fix function. You can upgrade the software that is running without interrupting services.

The OptiX RTN 910 supports the software version rollback function. When a software upgrade fails, the original services of the system can be recovered.

OptiX RTN 910 Radio Transmission System Product Description 3 Product Structure


3 Product Structure

This topic describes the system structure, hardware structure, and software structure of the product, and the process of processing service signals.

3.1 System Architecture The OptiX RTN 910 consists of a series of functional units, including the service interface unit, service switching unit, IF unit, control unit, clock unit, auxiliary interface unit, fan unit, power unit, and ODU.

Figure 3-1 Block diagram

Serviceinterface

unit

Serviceswitching

unitIF unit

ODU

Fanunit

Clockunit

Controlunit

Auxiliaryinterface

unit

E1

-48V/-60V DC

RF signal

IF signal

Clock/timeinterface

NM data

IDU

Controland overhead bus

Antenna

Powerunit

EthernetService

busService

bus

Sync data

Orderwire dataExternal alarm data

3 Product Structure OptiX RTN 910 Radio Transmission System

Product Description


Table 3-1 Functional unit

Functional Unit Function

Service interface unit Accesses E1 signals. Accesses Ethernet signals. Performs the corresponding PWE3 encapsulation for various signals that are accessed.

Service switching unit

Processes the MPLS protocol and forwards packets.

IF unit Maps service signals to microwave frame signals and demaps microwave frame signals to service signals.

Performs conversion between microwave frame signals and IF analog signals.

Provides the O&M channel between the IDU and the ODU. Supports FEC.

Control unit System communications and control. System configuration and management. Collects alarms and monitors performance. Processes overheads.

Clock unit Traces the clock source signal and provides various clock signals for the system.

Processes the IEEE 1588V2 protocol to implement the clock or time synchronization.

Provides input and output interfaces for the clock or time.

Auxiliary interface unit

Provides the orderwire interface. Provides the synchronous data interface. Provides the external alarm input/output interface.

Power unit Accesses –48 V/–60 V DC power. Provides –48 V/+3.3 V power for the IDU. Provides –48 V power for the ODU.

Fan unit Provides wind cooling for the IDU.

ODU Converts IF analog signals to RF signals and RF signals to IF analog signals.

Provides the O&M channel between the IDU and the ODU.

3.2 Hardware Structure The OptiX RTN 910 adopts a split structure. The system consists of the IDU and the ODU. An ODU is connected to an IDU through a coaxial cable. The coaxial cable transmits IF service signals and the O&M signals of the ODU. In addition, the coaxial cable supplies –48 V power supply to the ODU.



3.2.1 IDU The IDU 910 is the IDU of the OptiX RTN 910.

The IDU 910 adopts the card plug-in design. It can implement different functions by configuring different types of boards.

Figure 3-2 IDU slot layout

SLOT6

(FAN)

SLOT5

(PIU) SLOT 1 & SLOT 2 (CXPAR/CXPBR)

SLOT 3 (EXT) SLOT 4 (EXT)

The EXT represents an extended slot, which can be inserted with various IF boards and interface boards.

Table 3-2 List of IDUs

Board Name Full Name Valid Slot Description

CXPAR System control, switching, and clock board

CXPBR System control, switching, and clock board

Slot 1 & slot 2 Provides 3 Gbit/s packet switching. Performs system communication and control. Processes the clock signals, provides two clock/time common interface .

Provides 16xE1 interfaces (The CXPAR provides 75-ohm interfaces, and the CXPBR provides 120-ohm interfaces).

Provides four FE interfaces. Provides one Ethernet NM interface, one NM serial interface, and one NE cascading interface.

Provides one orderwire phone interface?, one synchronous data interface, and three-input and one-output external alarm interfaces?.

IFE2 Packet IF board with a large capacity

Slot 3 or slot 4 Provides one IF interface. Supports the packet microwave. Supports AM.

EF8T 8xFE service interface board

Provides eight FE interfaces.

EF8F 8xFE service interface board

Provides 8xFE optical interfaces.

EG2 2xGE service interface board

Slot 3 or slot 4

Uses the SFP optical module to provide two GE optical interfaces.

ML1 16xE1 service processing board (75 ohms)

Slot 3 or slot 4 Provides 16 75-ohm E1 interfaces. Processes the following services flexibly:?TDM E1, IMA E1, and ML-PPP E1


Product Description


Board Name Full Name Valid Slot Description

ML1A 16xE1 service processing board (120 ohms)

Slot 3 or slot 4 Provides 16 120-ohm E1 interfaces. Processes the following services flexibly: TDM E1, IMA E1, and ML-PPP E1

TNC1PIU Power board Slot 5 Provides two –48 V/–60 V DC power inputs.

TNC1FAN Fan board Slot 6 Cools and ventilates the IDU.

3.2.2 ODU The ODU is an integrated system and has various types. The structures and working principles of various types of ODUs are the same.

Block Diagram

Figure 3-3 Block diagram of the ODU

Antenna port

CRTL

Tx IF

Rx IF

Cable port

PWR

Up-conversionMultiplexer

O&Muplink

O&Mdownlink

DC

Down-conversion

AMP

LNA

Synthesizers

Diplexer

Rx RF

Tx RF

Signal Processing in the Transmit Direction The multiplexer splits the signal coming from the IF cable into a 350 MHz IF signal, an O&M uplink signal, and a –48 V DC power signal.

In the transmit direction, the IF signal is processed as follows:

1. Through the up-conversion, filtering, and amplification, the IF signal is converted into the RF signal and then sent to the AMP amplifier unit.

2. The AMP amplifies the RF signal (the output power of the signal can be controlled by the IDU software).

3. After the amplification, the RF signal is sent to the antenna through the diplexer.

The O&M uplink signal is a 5.5 MHz ASK-modulated signal and is demodulated in the CTRL control unit.

The –48 V DC power signal is sent to the PWR power unit where the secondary power supply of a different voltage is generated and provided to the modules of the ODU.



Signal Processing in the Receive Direction In the diplexer, the receive RF signal is separated from the antenna signal. The RF signal is amplified in the low noise amplifier (LNA). Through the down-conversion, filtering, and amplification, the RF signal is converted into the 140 MHz IF signal and then sent to the multiplexer.

The O&M downlink signal is modulated under the ASK scheme in the CTRL unit. The 10 MHz signal is generated through the modulation and sent to the multiplexer. The CTRL unit also detects the receive signal level through the RSSI detection circuit and provides the RSSI interface.

The IF signal and the O&M downlink signal are combined in the multiplexer and then sent to the IDU through the IF cable.

3.3 Software Structure The OptiX RTN 910 software consists of the NMS software, IDU software, and ODU software.

Figure 3-4 shows the software structure. The NMS software communicates with the NE software through the Qx interface. The Qx interface uses the OptiX private management protocol.

Figure 3-4 Software structure

NMS software

Qx interface

IDU software ODU software

3.3.1 NMS Software Huawei provides a transmission network management solution that meets the requirements of the telecommunication management network (TMN) for managing all the OptiX RTN products and other OptiX series transmission products on the network.

Related Concepts 5.1 Network Management Solution

3.3.2 IDU Software The IDU software consists of the NE software and the board software.

The NE software manages, monitors, and controls the running status of the IDU. Through the NE software, the NMS communicates with the boards, and controls and manages the NE. The NE software communicates with the ODU software to manage and control the ODU running.


Product Description


The board software manages and controls the running status of other IDUs except the system control board. Currently, the IDU does not have the independent board software. The board software of the IDU, in the form of modules, is integrated into the NE software and runs in the CPU of the system control board.

3.3.3 ODU Software The ODU Software manages and controls the ODU running status. The ODU software controls the ODU running according to the parameter transmitted by the IDU software. The ODU running status is reported to the IDU software.

3.4 Service Signal Flow This topic considers the transmission of the TDM E1 services and the FE services that the CXPAR or CXPBR accesses directly as an example to describe the service signal processing flow of the OptiX RTN 910.

Figure 3-5 Service signal processing flow

CXPAR/CXPBR IFE2 ODU

RFsignal

IFsignal

IDU

Antenna

E1

FE

Servicebus

Table 3-3 Service signal processing flow in the transmit direction

SN Component Signal Processing Description

1 CXPAR/CXPBR Accesses E1 signals and FE signals, and extracts E1 service payloads and Ethernet frames.

Performs the PWE3 encapsulation for E1 service payloads in CES emulation mode to form the Ethernet frames that carry PW packets.

Performs Ethernet Layer 2 processing for Ethernet frames based on the configuration and the Layer 2 protocol, and then performs the PWE3 encapsulation to form the Ethernet frames that carry PW packets.

Processes the Ethernet frames that carry and isolate PW packets based on the service configuration and the Layer 3 protocol, and then forwards the processed Ethernet frames to IFE2.




2 IFE2 Selects the proper coding and modulation schemes according to the quality of the channel.

Accesses the Ethernet frames transmitted from the CXPAR or CXPBR.

Maps Ethernet frames into the microwave frame payload area to form microwave frames along with the microwave frame overheads.

FEC coding. Digital modulation. D/A conversion. Analog modulation Combines the analog IF signals and ODU O&M signals. The ODU O&M signals are already modulated by the auxiliary modem.

Transmits the combined signals and –48 V power to the ODU through the coaxial cable.

3 ODU Splits the analog IF signals, ODU O&M signals, and –48 V power.

Converts the analog IF signals into RF signals through up conversions and amplifications.

Transmits the RF signals to the antenna through the waveguide.

Table 3-4 Service signal processing flow in the receive direction


1 ODU Isolates and filters RF signals. Converts the RF signals into analog IF signals through down conversions and amplifications.

Controls the level of the signals through the automatic gain control (AGC) circuit.

Combines the IF signals and the ODU O&M signals. The O&M signals are already modulated by an auxiliary modem.

Transmits the combined signals to the IF boards.


Product Description



2 IFE2 Splits the received analog IF signals and ODU O&M signals.

A/D conversion. Digital demodulation. Time domain adaptive equalization. FEC decoding. Synchronizes and descrambles the frames. Extracts overheads from microwave frames. Extracts Ethernet frames from microwave frames, and then transmits the Ethernet frames to the CXPAR or CXPBR.

3 CXPAR/CXPBR Processes the Ethernet frames that carry PW packets based on the service configuration and the Layer 3 protocol, and then forwards the processed Ethernet frames.

Extracts Ethernet frames and E1 service payloads from PW packets.

Outputs Ethernet frames that are processed according to the configuration and the Layer 2 protocol, through FE interface.

Outputs E1 service payloads through E1 interface.

OptiX RTN 910 Radio Transmission System Product Description 4 Services


4 Services

The OptiX RTN 910 supports the Ethernet services, IMA services, and CES services.

4.1 Ethernet Services The OptiX RTN 910 provides E-line and E-Aggr services over the public PSN for customers by using the MPLS, IP and GRE tunnel based L2VPN technology.

Service Forms Standardization organizations such as ITU-T, IETF, and MEF stipulate the model frames for E-line services. Table 4-1 lists the model frames. The OptiX RTN 910 adopts the model frame that is stipulated by MEF.

Table 4-1 Comparison among L2 Ethernet services stipulated by the standardization organizations

Service Type Service Multiplexing (Access Side)

Transmission Channel (Network Side)

IETF Model

ITU-T Model

MEF Model

Line Physically isolated

Physically isolated - EPL

VLAN - Physically isolated

MPLS VPWS

Physically isolated -

VLAN -

Point-to-point service

Virtual line

VLAN

MPLS VPWS

EVPL

E-Line

E-Line Service Illustration Figure 4-1 illustrates the E-line service that is provided by the OptiX RTN 900 product.

4 Services OptiX RTN 910 Radio Transmission System

Product Description


Company A has branches in City 1 and City 3. Company B has branches in City 2 and City 3. Company C has branches in City 1 and City 2. The branches of Company A, Company B, and Company C require data communication among themselves within the Company. The OptiX RTN 900 equipment can provide E-line services for Company A, Company B, and Company C respectively to meet the communication requirements. In this case, the OptiX RTN 900 can ensure that the service data of each company is fully isolated.

Figure 4-1 E-Line service illustration

Nationwide/Global carrier Ethernet

Company A

Company B

City 3

Company C

City 1

Company A

Company C

Company B

City 2

E-Line1E-Line2E-Line3

OptiX RTN 900

OptiX packettransmission product

E-Aggr Service Illustration The E-Aggr service is a point-to-point bidirectional convergence service. Figure 4-2 illustrates the E-Aggr service provided by the OptiX RTN 900 products.

To construct a 3G network, an operator needs to converge services from each NodeB and transmit the converged services to the RNC. The data flow between the NodeB and the RNC is taken as a service. At the convergence node, overall bandwidth is specified for the services to ensure the QoS.



Figure 4-2 E-Aggr service illustration

GE

RNCNode B

FE

FE

FE

OptiX RTN 900

4.2 IMA/ATM Services The OptiX RTN 910 provides ATM emulation services by means of PWs in the packet-based transport network.

The OptiX RTN 910 accesses ATM services on the source node, encapsulates ATM cells into PWs, and transmits the PWs to the sink node. On the sink node, the ATM cells are recovered. In this way, the ATM service emulation is achieved. The OptiX RTN 910 supports the following modes to map the ATM cell flow to the PW.

1:1 virtual channel connection (VCC) mapping scheme: one VCC is mapped into one PW.

N:1 VCC mapping scheme: N (N≤32) VCCs are mapped into one PW. 1:1 virtual path connection (VPC) mapping scheme: one VPC is mapped into one PW. N:1 VPC mapping scheme: N (N≤32) VPCs are mapped into one PW.

The OptiX RTN 910 can access ATM services by using the IMA technology. It supports the following operations:

Querying the IMA link state. Querying the IMA group state. Adding E1 links to an IMA group. Deleting E1 links from an IMA group.

ATM specifications supported by the OptiX RTN 910 are listed as follows:


Product Description


A maximum of 32 ATM cells can be concatenated for a PW. A maximum of 192 ATM services can be supported. A maximum of 384 ATM connections (local service, including VCCs and VPCs) or 768

ATM connections (remote service, including VCCs and VPCs) can be supported. A maximum of 8 IMA groups can be supported by the ML1 and ML1A boards. A maximum of 16 E1 links can be supported in each IMA group.

4.3 CES Services In a packet-based transport network, the CES circuit emulation technology is used to transparently transmit TDM circuit switching data. The OptiX RTN 910 supports emulated transparent transmission of the TDM E1 services.

Application Model The OptiX RTN 910 can access CES services by using the PWE3 technology.

The CES service mainly applies to the wireless service and the enterprise private line service. The 2G base station or enterprise private line accesses the OptiX RTN 910 by using the E1 line. The OptiX RTN 900 equipment slices and encapsulates the E1 signals into data packets, which are then transported to the opposite end through the PW in the metropolitan transport network. See Figure 4-3.

Figure 4-3 Application model of the CES service

IP/MPLS backbone network

BTSNodeB BTS NodeB

BSCRNC

CES OptiX packettransmission product

OptiX RTN 900

Backbone layer

Convergence layer

Access layer



In the case of a local CES service, it is like that there are two links on the equipment. The CES service is transmitted upstream over one link and is transmitted downstream over the other link.

Emulation Mode The OptiX RTN 910 supports CES services of the two modes known as the structured emulation mode and the unstructured emulation mode.

The structured emulation mode is referred to as structure-aware TDM circuit emulation service over packet switched network (CESoPSN). In this mode:

The equipment senses frame structures, frame alignment modes, and timeslots in the TDM circuit.

The equipment processes the overhead and extracts the payload in TDM frames. Then, the equipment delivers timeslots of each channel to the packet payload according to a certain sequence. Thus, services of each channel in the packet are fixed and visible.

Each data packet that carries the CES service loads a fixed number of TDM frames. The encapsulation time can be configured from 0.125 ms to 5 ms.

The jitter buffer can be configured from 0.125 ms to 5 ms.

The unstructured emulation mode is referred to as structure-agnostic TDM over packet (SAToP). In this mode:

The equipment considers the TDM signals as bit streams at a constant rate instead of sensing structures in the TDM signals. The entire bandwidth of the TDM signals is emulated.

Overheads and payloads in the TDM signals are transparently transmitted. The encapsulation time can be configured from 0.125 ms to 5 ms. The jitter buffer can be configured from 0.125 ms to 5 ms.

In the CESoPSN mode, the OptiX RTN 910 provides the compression function for the idle 64 kbit/s timeslots in the TDM E1 signals, to save the transmission bandwidth.

Service Clocks TDM services have high requirements for clock synchronization. The OptiX RTN 910 supports the retiming synchronization mode, and self-adaptation synchronization mode.

In the retiming synchronization mode, the system clock of the PEs are synchronized and the system clock is used as the service clock (retiming). Thus, all the PEs and CEs are synchronized and the service clocks of the TDM services on all the CEs and PEs are synchronized. See Figure 4-4.


Product Description


Figure 4-4 Retiming synchronization mode of the CES service clock

CE CEPE PECES

PRC/GPS PRC/GPS

TDM TDM

In the self-adaptation synchronization mode, the PE equipment at the ingress side extracts clock from the TDM interface. The PE equipment at the egress side recovers the TDM clock through the CES service. See Figure 4-5.

Figure 4-5 Self-adaptation synchronization mode of the CES service clock

BTS BSCPE PECESTDM TDM

Line timing mode started to extract the clock from the TDM interface

Service clock generated according to the clock information in the CES service

OptiX RTN 910 Radio Transmission System Product Description 5 Network Management System


5 Network Management System

This topic describes the network management solution and various NMS software that contribute to this solution.

5.1 Network Management Solution Huawei provides a complete transport network management solution compliant with TMN for different function domains and customers in telecommunication networks.

The NM solutions include the following:

OptiX iManager T2000 LCT local maintenance terminal OptiX iManager T2000 transmission network management system OptiX iManager T2100 transmission network (network-level) management system

Figure 5-1 Network management solution to the transmission network

iManager T2100

iManager T2000 LCT

Network-level NM

Subnetwork-level NM

Local craft terminal

iManager T2000

iManagerT2100

5.2 T2000 LCT The T2000 LCT is a local maintenance terminal. A user can access the T2000 LCT server by using the T2000 LCT client to management a single NE. T2000 LCT performs the following NE level management functions: NE management, alarm management, performance management, configuration management, communication management, and security management.

5 Network Management System OptiX RTN 910 Radio Transmission System

Product Description


NE Management Searching for NEs Adding/Deleting NEs Logging in to or out of NEs NE time management

Alarm Management Setting alarm monitoring strategies Viewing alarms Deleting alarms

Performance Management Setting performance monitoring strategies Viewing performance events Resetting performance registers

Configuration Management Basic NE information configuration Microwave link configuration Protection configuration Interface configuration Service configuration Clock configuration

Communication Management Communication parameter management DCC management HWECC protocol management IP protocol management

Security Management NE user management NE user group management LCT access control Online user management NE security parameters NE security log NMS user management NMS log management

OptiX RTN 910 Radio Transmission System Product Description 5 Network Management System


5.3 T2000 The T2000 is a subnetwork-level network management system. A user can access the T2000 server through a T2000 client to manage Huawei transport subnets in the unified manner. The T2000 can provide not only the NE-level management function, but also the management function at the network layer.

NE Level Management NE object management NE level alarm management NE level performance management NE level configuration management NE level communication management NE level security management

Network Level Management Topology management Network level alarm management Network level performance management Network level performance management Network level communication management Network level security management Network-wide clock management

Others Report function Northbound SNMP interface

5.4 T2100 The T2100 is a network level management system. Users can access the T2100 server through a special T2100 client and thus achieve uniform management over multiple transmission networks composed of OptiX series transmission products.

The T2100 and the T2000 form a multi-layer management network to manage large transmission networks. The hierarchical management system has the following features:

Strengthens the network management ability. Realizes uniform network management. Separates NE management from network management. Meets the requirements for the O&M mechanism of operators.

5 Network Management System OptiX RTN 910 Radio Transmission System

Product Description


Figure 5-2 Multi-layer management network

DCN

T2100

T2000

OptiX product network

T2000

OptiX product network

OptiX RTN 910 Radio Transmission System Product Description 6 Performance


6 Performance

This topic describes the technical specifications of the OptiX RTN 910.

6.1 RF Performance This topic describes the radio frequency (RF) performance and various technical specifications related to microwaves.

6.1.1 Microwave work modes This section lists the microwave work modes that are supported by the OptiX RTN 910.

Table 6-1 Microwave work modes

Channel Spacing (MHz) Modulation Scheme Maximum Ethernet throughput (Mbit/s)

7 QPSK 9 to 11

7 16QAM 19 to 23

7 32QAM 24 to 29

7 64QAM 31 to 37

7 128QAM 37 to 44

7 256QAM 43 to 51

14 (13.75) QPSK 20 to 23

14 (13.75) 16QAM 41 to 48

14 (13.75) 32QAM 50 to 59

14 (13.75) 64QAM 65 to 76

14 (13.75) 128QAM 77 to 90

14 (13.75) 256QAM 90 to 104

28 (27.5) QPSK 41 to 48

6 Performance OptiX RTN 910 Radio Transmission System

Product Description


Channel Spacing (MHz) Modulation Scheme Maximum Ethernet throughput (Mbit/s)

28 (27.5) 16QAM 84 to 97

28 (27.5) 32QAM 108 to 125

28 (27.5) 64QAM 130 to 150

28 (27.5) 128QAM 160 to 180

28 (27.5) 256QAM 180 to 210

56 QPSK 84 to 97

56 16QAM 170 to 190

56 32QAM 210 to 240

56 64QAM 260 to 310

56 128QAM 310 to 360

56 256QAM 360 to 420

The channel spacings 13.75 MHz and 27.5 MHz are applied to the 18 GHz frequency band.

The channel spacings listed in the table are the minimum channel spacings supported by the product. The channel spacings larger than the values are also supported.

6.1.2 Frequency Band The ODUs of the different series and different types support different operating frequency bands.

Frequency Bands (Standard Power ODU)

Table 6-2 Frequency band (SP ODUs)

Frequency Band

Frequency Range (GHz) T/R Spacing (MHz)

7 GHz 7.093–7.897 154, 161, 168, 196, 245

8 GHz 7.731– 8.496 119, 126, 266, 311.32

11 GHz 10.675–11.745 490, 500, 530

13 GHz 12.751–13.248 266

15 GHz 14.403–15.348 315, 322, 420, 490, 728

18 GHz 17.685–19.710 1008, 1010, 1560

23 GHz 21.200–23.618 1008, 1200, 1232



Frequency Band


26 GHz 24.549–26.453 1008

38 GHz 37.044–39.452 1260

Table 6-3 Frequency band (SPA ODUs)

Frequency Band


6 GHz 5.915–6.425 (L6) 6.425–7.125 (U6)

252.04 (L6) 340 (U6)

Frequency Bands (High Power ODU)

Table 6-4 Frequency band (HP ODUs)

Frequency Band


7 GHz 7.093–7.897 154, 161, 168, 196, 245

8 GHz 7.731–8.497 119, 126, 151.614, 208, 266, 311.32

11 GHz 10.675–11.745 490, 500, 530

13 GHz 12.751–13.248 266

15 GHz 14.400–15.353 315, 322, 420, 490, 644, 728

18 GHz 17.685–19.710 1008, 1010, 1560

23 GHz 21.200–23.618 1008, 1200, 1232

26 GHz 24.549–26.453 1008

32 GHz 31.815–33.383 812

38 GHz 37.044–40.105 700, 1260

6.1.3 Receiver Sensitivity The receiver sensitivity reflects the anti-fading capability of the microwave equipment.

For a guaranteed value, remove 3 dB from the typical value.

The 6 GHz ODU does not support the modulation mode of 256QAM and the channel spacing of 56 MHz. The value of the receiver sensitivity is unavailable (NA) in the case of the 6 GHz ODU.


Product Description


Table 6-5 Typical receiver sensitivity values (i)

Performance (at 7 MHz Channel Spacing)

Item QPSK 16QAM 32QAM 64QAM 128QAM 256QAM

RSL@ BER = 10–6 (unit: dBm)

@6GHz –92.5 –86.5 –82.5 -79.5 –76.5 NA

@7GHz –92.5 –86.5 –82.5 -79.5 –76.5 –73.5

@8GHz –92.5 –86.5 –82.5 -79.5 –76.5 –73.5

@11GHz –92 –86 –82 -79 –76 –73

@13GHz –92 –86 –82 -79 –76 –73

@15GHz –92 –86 –82 -79 –76 –73

@18GHz –92 –86 –82 -79 –76 –73

@23GHz –91.5 –85.5 –81.5 -78.5 –75.5 –72.5

@26GHz –91 –85 –81 -78 –75 –72

@32GHz –90 –84 –80 -77 –74 –71

@38GHz –89.5 –83.5 –79.5 -76.5 –73.5 –70.5

Table 6-6 Typical receiver sensitivity values (ii)




@6GHz –90.5 –83.5 –79.5 -76.5 –73.5 NA

@7GHz –90.5 –83.5 –79.5 -76.5 –73.5 –70.5

@8GHz –90.5 –83.5 –79.5 -76.5 –73.5 –70.5

@11GHz –90 –83 –79 -76 –73 –70

@13GHz –90 –83 –79 -76 –73 –70

@15GHz –90 –83 –79 -76 –73 –70

@18GHz –90 –83 –79 -76 –73 –70

@23GHz –89.5 –82.5 –78.5 -75.5 –72.5 –69.5

@26GHz –89 –82 –78 -75 –72 –69

@32GHz –88 –81 –77 -74 –71 –68

@38GHz –87.5 –80.5 –76.5 -73.5 –70.5 –67.5



Table 6-7 Typical receiver sensitivity values (iii)




@6GHz –87.5 –80.5 –76.5 -73.5 –70.5 NA

@7GHz –87.5 –80.5 –76.5 -73.5 –70.5 –67.5

@8GHz –87.5 –80.5 –76.5 -73.5 –70.5 –67.5

@11GHz –87 –80 –76 -73 –70 –67

@13GHz –87 –80 –76 -73 –70 –67

@15GHz –87 –80 –76 -73 –70 –67

@18GHz –87 –80 –76 -73 –70 –67

@23GHz –86.5 –79.5 –75.5 -72.5 –69.5 –66.5

@26GHz –86 –79 –75 -72 –69 –66

@32GHz –85 –78 –74 -71 –68 –65

@38GHz –84.5 –77.5 –73.5 -70.5 –67.5 –64.5

Table 6-8 Typical receiver sensitivity values (iv)




@6GHz NA NA NA NA NA NA

@7GHz –84.5 –77.5 –73.5 -70.5 –67.5 –64.5

@8GHz –84.5 –77.5 –73.5 -70.5 –67.5 –64.5

@11GHz –84 –77 –73 -70 –67 –64

@13GHz –84 –77 –73 -70 –67 –64

@15GHz –84 –77 –73 -70 –67 –64

@18GHz –84 –77 –73 -70 –67 –64

@23GHz –83.5 –76.5 –72.5 -69.5 –66.5 –63.5

@26GHz –83 –76 –72 -69 –66 –63


Product Description




@32GHz –82 –75 –71 -68 –65 –62

@38GHz –81.5 –74.5 –70.5 -67.5 –64.5 –61.5

6.1.4 Transceiver Performance The performance of the transceiver includes the nominal maximum/minimum transmit power, nominal maximum receive power, and frequency stability.

Transceiver Performance (Standard Power ODU)

Table 6-9 Transceiver performance (SP ODUs)

Performance Item

QPSK 16QAM/32QAM

64QAM/128QAM

256QAM

Nominal maximum transmit power (dBm)

@7 GHz 27 22.5 18.5 16.5

@8 GHz 27 22.5 18.5 16.5

@11 GHz 26 21.5 17.5 15.5

@13 GHz 26 21.5 17.5 15.5

@15 GHz 26 21.5 17.5 15.5

@18 GHz 25.5 21.5 17.5 15.5

@23 GHz 24 20.5 16.5 14.5

@26 GHz 23.5 19.5 15.5 13.5

@38 GHz 22 17.5 13.5 11.5

Nominal minimum transmit power (dBm)

–4

Nominal maximum receive power (dBm)

–20

Frequency stability (ppm)

±5



Table 6-10 Transceiver performance (SPA ODUs)

Performance Item

QPSK 16QAM/32QAM 64QAM/128QAM


@6 GHz 26.5 24.0 23.0


0


–20


±5

Transceiver Performance (High Power ODU)

Table 6-11 Transceiver performance (HP ODUs)

Performance Item

QPSK 16QAM/32QAM

64QAM/128QAM

256QAM


@7 GHz 30 28 25 23

@8 GHz 30 28 25 23

@11 GHz 28 26 22 20

@13 GHz 26 24 20 18

@15 GHz 26 24 20 18

@18 GHz 25.5 23 19 17

@23 GHz 25 23 19 17

@26 GHz 25 22 19 17

@32 GHz 23 21 17 15

@38 GHz 23 20 17 15


@7 GHz 9

@8 GHz 9


Product Description


Performance Item

QPSK 16QAM/32QAM

64QAM/128QAM

256QAM

@11 GHz 6

@13 GHz 3

@15 GHz 3

@18 GHz 2

@23 GHz 2

@26 GHz 2

@32 GHz 1

@38 GHz 1


–20


±5

6.1.5 IF Performance The IF performance includes the performance of the IF signal and the performance of the ODU O&M signal.

Table 6-12 IF performance

Item Performance

IF signal

Transmit frequency of the IF board (MHz)

350

Receive frequency of the IF board (MHz)

140

Impedance (ohm) 50

ODU O&M signal

Modulation scheme ASK

Transmit frequency of the IF board (MHz)

5.5

Receive frequency of the IF board (MHz)

10



6.1.6 Baseband Signal Processing Performance of the Modem The baseband signal processing performance of the modem indicates the FEC coding scheme and the performance of the baseband time domain adaptive equalizer.

Table 6-13 Baseband signal processing performance of the modem

Item Performance

Encoding mode Low-density parity check code (LDPC) encoding.

Adaptive time-domain equalizer for baseband signals

Supported.

6.2 Packet Service Capability The product provides the powerful packet service capability to meet the relevant requirements of operators.

Table 6-14 Packet service capability

Item Performance Specification

Number of supported VLAN tags 4096

Number of supported tunnels (including MPLS tunnels, TMPLS tunnels, IP tunnels, and GRE tunnels)

512

Number of CESs 48

Number of supported PWs 1024

Number of E-Lines 1024

Number of supported routes 512

Supported routing protocols NNI: IS-IS and MP-BGP UNI: OSPF, MP-BGP, and RIP

Number of APS protection groups 128

6.3 Equipment Reliability Equipment reliability includes the component reliability and the link reliability.


Product Description


6.3.1 Component Reliability The component reliability reflects the reliability of a single component.

Table 6-15 Component reliability

Performance Item

IDU (1+0 Non-protection Configuration)

IDU (1+1 Protection Configuration)

ODU

MTBF (h) 354749 547272 481788

MTTR (h) 1 1 1

Availability 99.99972% 99.99982% 99.99979%

6.3.2 Link Reliability The link reliability reflects the reliability of a microwave hop and reflects the reliability of all the involved components.

Table 6-16 Link reliability per hop

Performance Item

1+0 Non-protection Configuration

1+1 Protection Configuration

MTBF (h) 102155 258929

MTTR (h) 1 1

Availability 99.99902% 99.99961%

6.4 Interface Performance This section describes the technical specifications of various services and auxiliary interfaces.

6.4.1 E1 Interface Performance The performance of the E1 interface is compliant with ITU-T G.703.

Table 6-17 E1 interface performance

Item Performance

Nominal bit rate (kbit/s) 2048



Item Performance

Code pattern HDB3

Wire pair in each transmission direction

One coaxial wire pair One symmetrical wire pair

Impedance (ohm) 75 120

6.4.2 Ethernet Interface Performance The performance of the Ethernet interface is compliant with IEEE 802.3.

GE Optical Interface Performance The performance of the GE optical interface is compliant with IEEE 802.3. The following table provides the primary performance.

Table 6-18 GE optical interface performance

Item Performance

Nominal bit rate (kbit/s)

1000

Optical interface type

1000BASE-LX(0.5 km)

1000BASE-SX(10 km)

1000BASE-VX (40 km)

1000BASE-ZX(80 km)

Fiber type Multi-mode Single-mode Single-mode Single-mode

Central wavelength (nm)

770 to 860 1270 to 1355 1275 to 1355 1500 to 1580

Mean launched optical power (dBm)

-9.5 to 0 -11 to -3 - 5 to 0 -2 to 5

Receiver sensitivity (dBm)

-17 -19 -22 -22

Min. overhead point (dBm)

0 -3 -3 -3

Extinction ratio (dB)

9 9 9 9

OptiX RTN 910 use SFP modules for providing GE optical interfaces. You can use different types of SFP modules to provide GE optical interfaces with different classification codes and transmission distances.


Product Description


Performance of the FE Optical Interface The FE optical interface complies with IEEE 802.3. The following table describes the primary performance.

Table 6-19 Performance of the FE optical interface

Item Performance

Nominal bit rate (kbit/s)

100

Optical interface type

100BASE-FX (15 km)

100BASE-FX (40 km)

100BASE-FX (80 km)

Fiber type Single-mode Single-mode Single-mode

Central wavelength (nm)

1261 to 1360 1263 to 1360 1480 to 1580

Mean launched optical power (dBm)

- 15 to - 8 - 5 to 0 -5 to 0

Receiver sensitivity (dBm)

-28 -34 -34

Min. overhead point (dBm)

-8 -10 -10

Extinction ratio (dB) 8.2 10 10

OptiX RTN 910 use SFP modules for providing FE optical interfaces. You can use different types of SFP modules to provide FE optical interfaces with different classification codes and transmission distances.

10/100/1000BASE-T(X) Interface Performance The 10/100/1000BASE-T(X) interface is compliant with IEEE 802.3. The following table provides the primary performance.

Table 6-20 10/100/1000BASE-T(X) interface performance

Item Performance

Nominal bit rate (Mbit/s) 10 (10BASE-T) 100 (100BASE-TX) 1000 (1000BASE-T)

Code pattern Manchester encoding signal (10BASE-T) MLT-3 encoding signal (100BASE-TX) 4D-PAM5 encoding signal (1000BASE-T)

Interface type RJ-45



10/100BASE-T(X) Interface Performance The 10/100BASE-T(X) interface is compliant with IEEE 802.3. The following table provides the primary performance.

Table 6-21 10/100BASE-T(X) interface performance

Item Performance

Nominal bit rate (Mbit/s) 10 (10BASE-T) 100 (100BASE-TX)

Code pattern Manchester encoding signal (10BASE-T) MLT-3 encoding signal (100BASE-TX)

Interface type RJ-45

6.4.3 Auxiliary Interface Performance The auxiliary interface performance includes the performance of the orderwire interface and synchronous data interface.

Orderwire Interface Performance

Table 6-22 Orderwire interface performance

Item Performance

Transmission path Uses the user-defined byte in the overhead of the microwave frame.

Orderwire type Addressing call

Wire pair in each transmission direction

One symmetrical wire pair

Impedance (ohm) 600

Synchronous Data Interface Performance

Table 6-23 Synchronous data interface performance

Item Performance

Transmission path Uses the user-defined byte in the overhead of the microwave frame.

Nominal bit rate (kbit/s) 64

Interface type Codirectional

Interface characteristics Meets the ITU-T G.703 standard.


Product Description


6.5 Clock Timing and Synchronization Performance The clock timing performance and synchronization performance of the product meet relevant ITU-T recommendations

Table 6-24 Clock timing and synchronization performance

Item Performance

External synchronization source

2048 kbit/s (compliant with ITU-T G.703 §9), or 2048 kHz (compliant with ITU-T G.703 §13)

Frequency accuracy

Pull-in, hold-in, and pull-out ranges

Noise generation

Noise tolerance

Noise transfer

Transient response and holdover performance

Compliant with ITU-T G.813

6.6 Integrated System Performance Integrated system performance includes the dimensions, weight, power consumption, power supply, EMC, lightning protection, safety, and environment.

Dimensions

Table 6-25 Dimensions

Component Dimensions

IDU 442 mm (width) x 220 mm (depth) x 44 mm (height)

ODU < 280 mm (width) x 92 mm (depth) x 280 mm (height)



Weight and Power Consumption

Table 6-26 Typical weight

Component Typical Weight

IDU 4.1 kg, (1+0 non-protection) 4.6 kg, (1+1 protection)

ODU 4.2 kg, (SPA ODU) 4.6 kg, (SP/HP ODU)

Table 6-27 Typical power consumption

No. Configuration Typical Power Consumption (IDU+ODU)

1 16xE1+4xFE, 1+0 non-protection 118 W

2 16xE1+4xFE, 1+1 HSB protection 155 W

Power Supply

Table 6-28 Power Supply

Component Performance

IDU Compliant with ETSI EN300 132-2 Supporting two –48 V/–60 V (–38.4 V to –72 V) DC power inputs (mutual backup)

ODU Compliant with ETSI EN300 132-2 Supporting one –48 V (–38.4 V to –72 V) DC power input that is provided by the IDU

EMC Passes CE authentication. Compliant with ETSI EN 301 489-1. Compliant with ETSI EN 301 489-4. Compliant with CISPR 22. Compliant with EN 55022 CLASS B (when an IDU is installed in a outdoor BTS

cabinet).

Lightning Protection Compliant with ITU-T K.27.


Product Description


Compliant with ETSI EN 300 253.

Safety Passes CE authentication. Compliant with ETSI EN 60215. Compliant with ETSI EN 60950. Compliant with IEC 60825.

Environment The IDU is a unit used in a place that has weather protection and where the temperature can be controlled. The ODU is an outdoor unit.

Table 6-29 Environment performance

Component Item

IDU ODU

Operation Compliant with ETSI EN 300 019-1-3 class 3.2

Compliant with ETSI EN 300 019-1-4 class 4.1

Transportation Compliant with ETSI EN 300 019-1-2 class 2.3

Major reference standards

Storage Compliant with ETSI EN 300 019-1-1 class 1.2

Operation –5°C to +55°C –35°C to +55°C Air temperature

Transportation and storage

–40°C to +70°C

Relative humidity 5% to 95% 5% to 100%

Noise < 7.2 bel, compliant with ETSI EN 300 753 class 3.2 attended

-

Earthquake Compliant with Bellcore GR-63-CORE ZONE 4

Mechanical stress Compliant with ETSI EN 300 019

OptiX RTN 910 Radio Transmission System Product Description A Glossary

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd A-1

A Glossary

A

ATM The asynchronous transfer mode (ATM) is designed to transfer cell in which multiple service types (such as voice, video, or data) are conveyed in fixed-length (53-byte) cells. Fixed-length cells allow cell processing to occur in hardware, thereby reducing transit delays.

Air interface link A link used to transmit radio frequencies between mobile phones and base stations.

B

BTS Base transceiver station. It terminates the radio interface. It allows transmission of traffic and signaling across the air interface. The BTS includes the baseband processing, radio equipment, and the antenna.

BSC Base station controller. A BSC is used to control the radio signals of the receiving and transmitting base stations.

C

CES Circuit emulation service. A technology adapts the traditional narrowband services, that is, TDM services, to the wideband.

CoS Class of Service. A queuing discipline. An algorithm compares fields of packets or CoS tags to classify packets and to assign to queues of differing priority. CoS can not ensure network performance or guarantee priority in delivering packets.

Concatenation A process that combines multiple virtual containers. The combined capacities can be used as a single capacity. The concatenation also keeps the integrity of bit sequence.

Control plane The control plane performs the call control and connection control functions. Through signaling, the control plane sets up and releases connections, and may restore a connection in case of a failure. The control plane also performs other functions in support of call and connection control, such as routing information dissemination.

A Glossary OptiX RTN 910 Radio Transmission System

Product Description

A-2 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

E

E-Line Ethernet line. An point-to-point private service type that is provided for the user Ethernet in different domains.

F

FEC Forwarding equivalence class. A term used in multiprotocol label switching (MPLS) to describe a group of packets which are forwarded in the same manner (e.g.,over the same path, with the same forwarding treatment). FEC can be classified by address, service type, priority and QOS of packets, and may be bound to a MPLS label.

Flow classification In the case of flow classification, all the services from Layer 2 to Layer 7 of the OSI model are searched out and the service types are classified.

Frame Refers to a cyclic set of consecutive timeslots in which the relative position of each time slot can be identified In the transmission network. Refers to the packet data unit of the data link layer in the OSI model. It consists of frame header, user data and frame tail. The frame header and frame tail are used for synchronization and error control.

Forwarding plane The forwarding plane is also referred to as data plane, which forwards packets under the management of the control plane.

I

IS-IS IS-IS inter-domain rerouting information switching protocol. The IS-IS protocol is a dynamic routing protocol designed by ISO for connectionless network protocol (CLNP).

IMA Inverse multiplexing over ATM. A physical layer technology in which a high-speed stream of ATM cells is broken up and transmitted across multiple T1/E1 links, then is reconstructed back into the original ATM cell order at the destination. IMA is first standardized (v1.0) by the ATM Forum in 1997, and recently updated (v1.1) in 1999.

L

L2VPN Layer 2 virtual private network. A virtual private network realized in the packet switched (IP/MPLS) network by Layer 2 switching technologies.

LSR label switch router. LSR is to forward packets in an MPLS network by looking only at the fixed-length label.

LSP Label switch path. An ingress and egress switched path built through a series of LSRs to forward the packets of a particular FEC using a label swapping forwarding mechanism.

OptiX RTN 910 Radio Transmission System Product Description A Glossary

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd A-3

LDP Label Distribution Protocol. A protocol defined in RFC 3036 for distributing labels in MPLS network. It is the set of procedures and messages by which Label Switched Routers (LSRs) establish Label Switched Paths (LSPs) through a network by mapping network-layer routing information directly to data-link layer switched paths. More information about the applicability of LDP can be found in RFC3037.

link A "topological component" that provides transport capacity between two endpoints in different subnetworks via a fixed (that is, inflexible routing) relationship.

M

MPLS OAM The MPLS OAM provides continuity check for a single LSP, and provides a set of fault detection tools and fault correct mechanisms for MPLS networks. The MPLS OAM and relevant protection switching components implement the detection function for the CR-LSP forwarding plane, and perform the protection switching in 50 ms after a fault occurs. In this way, the impact of a fault can be lowered to the minimum.

N

node In a network, a point where one or more functional units interconnect transmission lines.

P

PWE3 pseudo wire emulation edge to edge. A mechanism that emulates the essential attributes of service (such as a E1 leased line or Frame Relay) over a PSN.

Package loading A method used to upgrade, load, and manage NE-level software in a centralized manner.

packet A logical grouping of information including header and (usually) user data.

PW Pseudo wire. A mechanism that bears the simulated services between PEs on the PSN.

Q

QoS Quality of Service. A set of service requirements to be met by the network while transporting a connection or flow; the collective effect of service performance which determine the degree of satisfaction of a user of the service. (E.360.1)

R

Route Path through an network.

A Glossary OptiX RTN 910 Radio Transmission System

Product Description

A-4 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

S

Switch To filter, forward frames based on label or the destination address of each frame. This behavior operates at the data link layer of the OSI model.

T

Tunnel A information transmission channel that is set up between two entities in the application of VPN. A tunnel provides sufficient security to prevent intrusion to the VPN internal information.

Traffic engineering A technique that can creates data forwarding paths for nodes based on the available resources on the network and reserve bandwidths for key traffic.

V

VC A unidirectional logical connection between two nodes.

VPWS virtual private wire service. A Virtual Private Wire Service (VPWS) is a point-to-point circuit (link) connecting two Customer Edge devices. The link is established as a logical link through a packet switched network.

OptiX RTN 910 Radio Transmission System Product Description B Acronyms and Abbreviations

Issue 01 (2009-04-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd B-1

B Acronyms and Abbreviations

A

ATM Asynchronous Transfer Mode

AF Assured Forwarding

AM Adaptive Modulation

ATPC Automatic Transmit Power Control

APS Automatic Protection Switching

ADSL Asymmetric Digital Subscriber Line

ARP Address Resolution Protocol

B

BSC Base Station Controller

BTS Base Transceiver Station

BGP Border Gateway Protocol

C

CES Circuit Emulation Service

CSPF Constraint-based Shortest Path First

CE Customer Edge

CoS Class of Service

CR-LDP Constraint-Routing Label Distribution Protocol

CC Continuity Check

CIR Committed Information Rate

B Acronyms and Abbreviations OptiX RTN 910 Radio Transmission System

Product Description

B-2 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

D

DCN Data Communication Network

DSCP Differentiated Services Code Point

DS Differentiated Services

E

EMC Electromagnetic Compatibility

EPL Ethernet Private Line

EVPL Ethernet Virtual Private Line

ETS European Telecommunication Standards

ETSI European Telecommunications Standards Institute

E-Line Ethernet-Line

F

FEC Forwarding Equivalence Class

FD Frequency Diversity

FRR Fast ReRoute

G

GPS Global Positioning System

H

HSB Hot Standby

HSDPA High Speed Downlink Packet Access

I

IP Internet Protocol

IS-IS Intermediate System to Intermediate System

IEC International Electrotechnical Commission

IEEE Institute of Electrical and Electronics Engineers

IMA Inverse Multiplexing for ATM

ITU-T International Telecommunication Union - Telecommunication Standardization Sector



L

LACP Link Aggregation Control Protocol

LSP Label Switched Path

LSR Label Switched Router

LDP Label Distribution Protocol

LMP Link Management Protocol

LSDB Link-State Database

M

MPLS Multiprotocol Label Switching

MP Merge Point

MAC Medium Access Control

N

NNI Network to Network Interface

NSF Not Stop Forwarding

O

OSPF Open Shortest Path First

OAM Operation, Administration and Maintenance

P

PE Provider Edge

PW Pseudo Wire

PWE3 Pseudo Wire Emulation Edge-to-Edge

PSN Packet Switched Network

PDU Protocol Data Unit

PRC Primary Reference Clock

PHP Penultimate Hop Popping

PHB Per-Hop Behavior

PLR Point of Local Repair

PPVPN Provider Provisioned VPN

B Acronyms and Abbreviations OptiX RTN 910 Radio Transmission System

Product Description

B-4 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 01 (2009-04-30)

PIR Peak Information Rate

Q

QoS Quality of Service

QPSK Quadrature Phase Shift Keying

R

RSVP Resource Reservation Protocol

RIP Routing Information Protocol

RNC Radio Network Controller

S

SD Space Diversity

SDH Synchronous Digital Hierarchy

T

TE Traffic Engineering

TDM Time Division Multiplex

TTL Time to Live

TEDB Traffic Engineering Database

U

UNI User Network Interface

V

VC Virtual Channel

VCC Virtual Channel Connection

VLAN Virtual Local Area Network

VP Virtual Path

VPN Virtual Private Network

VPC Virtual Path Connection

VPWS Virtual Private Wire Service

VPI Virtual Path Identifier



VRF Virtual Routing and Forwarding

VCI Virtual Channel Identifier

W

WRED Weighted Random Early Detection

WMS Wholesale Managed Services

RTN 910 Product Description(V100R001C00_01)

Documents

launched optical

dc power inputs

unstructured

structured

adaptation

mobile communication

packet processing

synchronous