Redline Communications RedMAX SU-IIR User manual

70-00057-01-01-DRAFT Proprietary Redline Communications © 2006 December 13, 2006
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m
RedMAXTM
Wireless Access Subscriber
Modem
User Manual

RedMAX™ Subscriber Modem
User Manual
70-00057-01-01-DRAFT Proprietary Redline Communications © 2006 December 13, 2006
Page 2 of 60
Copyright Information
All rights reserved December 13, 2006. The information in this document
is proprietary to Redline Communications Inc. This document may not in
whole or in part be copied, reproduced, or reduced to any medium without
prior consent, in writing, from Redline Communications Incorporated.
Contact Information:
Redline Communications Inc.
302 Town Centre Blvd. Suite 100
Markham, ON
Canada L3R 0E8
Web site: http://www.redlinecommunications.com
Sales Inquiries:
North American [email protected]
Toll-free sales 1-866-633-6669
International [email protected]
Support: www.redlinecommunications.com/support/support_portal.html
Document Control:
70-00057-01-01-RedMAX_Subscriber_UserMan-20061213a.doc
Disclaimer
The statements, configurations, technical data, and recommendations in this
document are believed to be accurate and reliable, but are presented without
express or implied warranty. Additionally, Redline makes no representations or
warranties, either expressed or implied, regarding the contents of this product.
Redline Communications shall not be liable for any misuse regarding this
product. The information in this document is subject to change without notice.
Revision History
Date: Rev. Auth. Comments
Jun. 5, 2006 01.00 SB Product Release
Dec. 6, 2006 01.00A SB • Add environmental standard IEC60529
• Add indoor subscriber

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TABLE OF CONTENTS
1Important Safety Notices ........................................................................ 7
1.1 Safety Warnings ........................................................................................ 7
1.2 Important Warning Symbols ...................................................................... 7
1.3 CSA Information ........................................................................................ 8
1.4 Frequency Selection.................................................................................. 8
1.4.1 General.................................................................................................. 8
1.4.2 R&TTE Directive 1999/5/EC Statements............................................... 8
1.5 Information for Use in Canada................................................................. 10
1.6 Redline Limited Standard Warranty......................................................... 11
1.7 Important Service Information ................................................................. 12
1.8 WEEE Product Return Process............................................................... 12
2Overview................................................................................................. 13
2.1 Features .................................................................................................. 14
2.1.1 IEEE 802.16 WiMAX Compliance........................................................ 14
2.1.2 PHY Specification................................................................................ 14
2.1.3 Time Division Duplexing (TDD) ........................................................... 14
2.1.4 Coding Rate......................................................................................... 14
2.1.5 Modulation ........................................................................................... 15
2.1.6 Automatic Repeat Request (ARQ)....................................................... 15
2.1.7 Reed Solomon Error Correction .......................................................... 15
2.2 Deployment Models................................................................................. 15
2.2.1 PTP Deployment ................................................................................. 15
2.2.2 PMP Deployment................................................................................. 15
2.2.3 Non Line-of-Sight................................................................................. 16
2.2.4 Channelization..................................................................................... 16
2.3 Service Flows .......................................................................................... 17
2.3.1 Service Flow Classification.................................................................. 17
2.3.2 Dynamic Service Addition.................................................................... 17
2.3.3 Uplink Service Flow Scheduling .......................................................... 18
2.3.4 Downlink Service Flow Scheduling...................................................... 18
3Indoor Unit Features ............................................................................. 19
3.1 Indoor Subscriber with Integrated Antenna ............................................. 19
3.2 LED Indicators ......................................................................................... 20
3.2.1 WiMAX / WAN Signal .......................................................................... 20
3.2.2 LAN System......................................................................................... 20
3.3 Indoor Subscriber Connections and Controls.......................................... 21
3.3.1 Ethernet Port ....................................................................................... 21
3.3.2 Reset Switch........................................................................................ 21
3.3.3 RF Port ................................................................................................ 22
3.3.4 Accessories ......................................................................................... 22
3.4 Antenna Alignment .................................................................................. 23
4Outdoor Subscriber Features............................................................... 24
4.1 Integrated Antenna (SU-OIA) .................................................................. 24

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4.2 Non Integrated Antenna (SU-ORF) ......................................................... 25
4.3 Subscriber Connections and Controls ..................................................... 26
4.3.1 Ethernet Port (and Cable).................................................................... 26
4.3.2 RF Port ................................................................................................ 26
4.3.3 Grounding Connection......................................................................... 26
4.3.4 Outdoor Subscriber Power Supply ...................................................... 27
4.4 Mounting the Outdoor Subscriber............................................................ 28
4.4.1 Outdoor Subscriber with Integrated Antenna....................................... 28
4.4.2 Outdoor Subscriber with External Antenna ......................................... 29
4.4.3 Antenna Alignment .............................................................................. 29
5CLI Commands ...................................................................................... 30
5.1 Introduction.............................................................................................. 30
5.2 CLI Modes ............................................................................................... 30
5.2.1 Telnet Connection ............................................................................... 30
5.2.2 Root Commands.................................................................................. 31
5.3 Mode Commands .................................................................................... 32
5.3.1 boardConfig - Board Setup Commands .............................................. 33
5.3.2 bsIdTable - Base Station ID Table Commands ................................... 34
5.3.3 diagStatistics - Diagnostic Statistics .................................................... 35
5.3.4 ethTag - Ethernet Tagging................................................................... 37
5.3.5 installedVer - Installed Version ............................................................ 38
5.3.6 ipAddress - IP Address Commands..................................................... 39
5.3.7 loadImage - Download and Activate Software Image.......................... 40
5.3.8 modThresh - Modulation Threshold..................................................... 41
5.3.9 monitor - Monitor Mode ....................................................................... 42
5.3.10 phyConfig - Physical Layer Configuration............................................ 43
5.3.11 privacySS - Privacy Commands .......................................................... 44
5.3.12 rfConfig - RF Setup Commands .......................................................... 45
5.3.13 set - Set Commands............................................................................ 46
5.3.14 show - Show Commands..................................................................... 47
5.3.15 softwareUpdate - Software Update Commands .................................. 48
5.3.16 status - Status Information................................................................... 49
6Appendices ............................................................................................ 50
6.1 System Technical Specifications ............................................................. 50
6.2 Receive Sensitivity .................................................................................. 51
6.3 Subscriber Log Messages ....................................................................... 53
6.4 Upgrade Subscriber................................................................................. 58
6.4.1 Before Beginning the Upgrade ............................................................ 58
6.4.2 Connection to Subscriber .................................................................... 58
6.4.3 Update Software Procedure ................................................................ 59

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LIST OF FIGURES
Figure 1: Notices - WEEE Logo .......................................................................... 12
Figure 2: Intro - RedMAX Subscriber Indoor System .......................................... 13
Figure 3: Intro - RedMAX Subscriber Outdoor System ....................................... 13
Figure 4: System - PTP Line of Sight Deployment.............................................. 15
Figure 5: System - Fresnel Zone......................................................................... 16
Figure 6: System - Non-Line of Sight Deployment .............................................. 16
Figure 7: Subscriber System Features................................................................ 19
Figure 8: Subscriber LED Display ....................................................................... 20
Figure 9: Subscriber System Connections - Power Connector ........................... 21
Figure 10: Subscriber Ethernet Connector (Under Base) ................................... 21
Figure 11: Subscriber Reset Switch (Under Base).............................................. 21
Figure 12: Subscriber RF Connector (Under Base) ........................................... 22
Figure 13: Subscriber Accessory Mounting Components ................................... 22
Figure 14: Subscriber System Connections Diagram ......................................... 23
Figure 15: SU-OIA System Features................................................................... 24
Figure 16: SU-ORF System Features ................................................................. 25
Figure 17: Outdoor Ethernet Cable - Cable Connection ..................................... 26
Figure 18: Outdoor Subscriber Power-over-Ethernet (PoE) Module................... 27
Figure 19: PoE Connection to DATA & POWER OUT Port ................................ 27
Figure 20: SU-OIA System Connections Diagram .............................................. 28
Figure 21: SU-ORF System Connections Diagram............................................. 29
Figure 22: Subscriber CLI Interface - Login Dialog ............................................. 31

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LIST OF TABLES
Table 1: R&TTE - Community Language CE Declarations ................................... 9
Table 2: Notices - R&TTE: Countries of Use (3.4 GHz & 3.6 GHz) .................... 10
Table 3: System - Indoor CPE WAN LEDs ......................................................... 20
Table 4: System - Indoor CPE WAN LEDs - Signal Strength.............................. 20
Table 5: System - LAN LEDs .............................................................................. 20
Table 6: System - PoE Ports............................................................................... 27
Table 7: System - Ethernet Data Port Link/Act LEDs.......................................... 28
Table 8: CLI - Command Groups ........................................................................ 30
Table 9: CLI - Root Mode Commands................................................................. 31
Table 10: CLI - Root Mode Commands............................................................... 32
Table 11: CLI - boardConfig - Board Commands................................................ 33
Table 12: CLI - bsIdTable - Base Station ID Commands .................................... 34
Table 13: CLI - diagStatistics - Diagnostic Statistics Commands........................ 35
Table 14: CLI - ethTag - Ethernet Tagging Commands ...................................... 37
Table 15: CLI - installedVer - Installed Version Commands................................ 38
Table 16: CLI - ipAddress - IP Address Commands ........................................... 39
Table 17: CLI - modThresh - Modulation Threshold Commands ........................ 41
Table 18: CLI - monitor - Monitor Mode .............................................................. 42
Table 19: CLI - phyConfig - Physical Layer Commands ..................................... 43
Table 20: CLI - privacySS - Privacy Commands ................................................. 44
Table 21: CLI - rfConfig - Radio Frequency Commands ..................................... 45
Table 22: CLI - set - Modify Subscriber Parameters ........................................... 46
Table 23: CLI - show - Show Commands............................................................ 47
Table 24: CLI - softwareUpdate - Software Update Commands ......................... 48
Table 25: CLI - status - Status Commands ......................................................... 49
Table 26: Specifications - Outdoor Wireless Subscriber Modem........................ 50
Table 27: Reference - RedMAX Subscriber Receive Sensitivity......................... 51
Table 28: Specifications - Indoor Wireless Subscriber Modem.......................... 52
Table 29: Troubleshooting - Event Log Messages.............................................. 53

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Chapter
1
1
1 I Im mp po or rt ta an nt t S Sa af fe et ty y N No ot ti ic ce es s
Models This manual covers the SU-IIR (SU-I) indoor wireless subscriber modem
and the outdoor SU-OIA/SU-ORF (SU-O) wireless subscriber modem.
1.1 Safety Warnings
1. Installation of the system must be contracted to a professional installer.
2. Read this user manual and follow all operating and safety instructions.
3. PoE power adapter caution:
PoE Power Adapter Caution
Warning to Service Personnel: 48 VDC
Connecting customer premises Ethernet equipment directly to the 'Data and
Power Out' connector on the subscriber Power-over-Ethernet power adapter
may damage customer network interface equipment. Customer equipment
including personal computers, routers, etc., must only be connected to the
'Data In' port on the PoE unit. Only the outdoors Ethernet interface cable to the
subscriber can be safely connected to the 'Data and Power Out' connector.
4. The power requirements are indicated on the product-marking label. Do not
exceed the described limits.
5. Use only a damp cloth for cleaning. Do not use liquid or aerosol cleaners.
Disconnect the power before cleaning.
6. Disconnect power when unit is stored for long periods.
7. The outdoor unit must not be located near power lines or other electrical
power circuits.
8. The system must be properly grounded to protect against power surges and
accumulated static electricity. It is the user’s responsibility to install this
device in accordance with the local electrical codes: correct installation
procedures for grounding of the outdoor unit, mast, lead-in wire and discharge
unit, location of discharge unit, size of grounding conductors and connection
requirements for grounding electrodes.
9. Keep all product information for future reference.
1.2 Important Warning Symbols
The following symbols may be encountered during installation or troubleshooting.
These warning symbols mean danger. Bodily injury may result if you are not
aware of the safety hazards involved in working with electrical equipment and

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radio transmitters. Familiarize yourself with standard safety practices before
continuing.
Electro-Magnetic Radiation High Voltage
1.3 CSA Information
1. The equipment must be properly grounded according with NEC, ICEC, CEC,
and others, and other local safety code and building code requirements.
2. To meet the over-voltage safety requirements on the telecommunications
cables, a minimum 26 AWG telecommunication line cord must be used.
3. "Pour être en conformance avec les exigences finies de sûreté de sur-tension
sur les câbles de télécommunications un fil de télécommunication ayant un
caliber minimum de 26 AWG doit être utilisé."
4. Reminder to all the broadband wireless system installers: Attention to Section
820-40 of the NEC which provides guidelines for proper grounding, and in
particular, specifies that the cable ground shall be connected to the grounding
system of the building as close to the point of cable entry as is practical.
1.4 Frequency Selection
1.4.1 General
Operation in the FWA band is subject to license. The radio power and channel
frequency selections must be set correctly before the installed system is allowed
to transmit. The installed system must comply with all governing local, regional,
and national regulations. Contact authorities in the country of installation for
complete information regarding the licensing regime and operating restrictions for
that regulatory domain.
1.4.2 R&TTE Directive 1999/5/EC Statements
Installation
The transceiver and antenna equipment must be installed by a qualified
professional installer and must be installed in compliance with regional, national,
and local regulations. It is the responsibility of the system installer and/or system
operator to ensure the installed system does not exceed any operational constraints
identified by local regulations. Refer to the sections in this product User Guide for
detailed information about the correct installation steps to ensure power and frequency
settings are set correctly before connecting the antenna. Operation in the 3.4-3.6 GHz
band is subject to license. Authorities within the country of installation can provide
information regarding the licensing regime and restrictions.
Community Language Declarations
The following table contains community language versions of informal statement in
accordance with Article 6.3 of Directive 1999/5/EC.

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Table 1:R&TTE - Community Language CE Declarations
Community language versions of informal statement for inclusion in user
information in accordance with Article 6.3 of Directive 1999/5/EC
Danish Undertegnede Redline Communications erklærer herved, at følgende
udstyr subscriber overholder de væsentlige krav og øvrige relevante
krav i direktiv 1999/5/EF
Hierbij verklaart Redline Communications dat het toestel subscriber in
overeenstemming is met de essentiële eisen en de andere relevante
bepalingen van richtlijn 1999/5/EG
Dutch
Bij deze verklaart Redline Communications dat deze subscriber voldoet
aan de essentiële eisen en aan de overige relevante bepalingen van
Richtlijn 1999/5/EC.
English Hereby, Redline Communications, declares that this subscriber is in
compliance with the essential requirements and other relevant
provisions of Directive 1999/5/EC.
Finnish Redline Communications vakuuttaa täten että subscriber tyyppinen laite
on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien
direktiivin muiden ehtojen mukainen.
Par la présente Redline Communications déclare que l'appareil
subscriber est conforme aux exigences essentielles et aux autres
dispositions pertinentes de la directive 1999/5/CE
French
Par la présente, Redline Communications déclare que ce subscriber est
conforme aux exigences essentielles et aux autres dispositions de la
directive 1999/5/CE qui lui sont applicables
Hiermit erklärt Redline Communications, dass sich dieser/diese/dieses
subscriber in Übereinstimmung mit den grundlegenden Anforderungen
und den anderen relevanten Vorschriften der Richtlinie 1999/5/EG
befindet". (BMWi)
German
Hiermit erklärt Redline Communications die Übereinstimmung des
Gerätes subscriber mit den grundlegenden Anforderungen und den
anderen relevanten Festlegungen der Richtlinie 1999/5/EG. (Wien)
Greek ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ Redline Communications ∆ΗΛΩΝΕΙ ΟΤΙ subscriber
ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩ∆ΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ
ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ∆ΙΑΤΑΞΕΙΣ ΤΗΣ Ο∆ΗΓΙΑΣ 1999/5/ΕΚ
Italian Con la presente Redline Communications dichiara che questo
subscriber è conforme ai requisiti essenziali ed alle altre disposizioni
pertinenti stabilite dalla direttiva 1999/5/CE.
Portuguese Redline Communications declara que este subscriber está conforme
com os requisitos essenciais e outras provisões da Directiva 1999/5/CE.
Spanish Por medio de la presente Redline Communications declara que el
subscriber cumple con los requisitos esenciales y cualesquiera otras
disposiciones aplicables o exigibles de la Directiva 1999/5/CE
Swedish Härmed intygar Redline Communications att denna subscriber står I
överensstämmelse med de väsentliga egenskapskrav och övriga
relevanta bestämmelser som framgår av direktiv 1999/5/EG.

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Table 2:Notices - R&TTE: Countries of Use (3.4 GHz & 3.6 GHz)
Country 3400-3600
MHz
Country 3400-3600
MHz
Country 3400-3600
MHz
Austria 9Hungary 9Poland 9
Belgium 9Iceland 9Portugal 9
Bulgaria 9Ireland 9Romania 9
Cyprus Italy Slovakia
9
Czech
Republic
9Latvia 9Slovenia 9
Denmark 9Liechtenstein 9Spain 9
Estonia 9Lithuania 9Sweden 9
Finland 9Luxembourg 9Switzerland 9
France 9Malta 9United
Kingdom
9
Germany 9Netherlands 9
Greece 9Norway 9
R&TTE Directive 1999/5/EC - Declarations of conformity are available at the
following web site address:
http://www.redlinecommunications.com/conformance/
1.5 Information for Use in Canada
Operation is subject to the following two conditions:
1. This device may not cause interference and
2. This device must accept any interference, including interference that may
cause undesired operation of the device.
This device has been designed to operate with an antenna having a maximum gain
of 20.59 dBi. Antenna having a higher gain is strictly prohibited per regulations of
Industry Canada. The required antenna impedance is 50 ohms.
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an
uncontrolled environment. End users must follow the specific operating
instructions for satisfying RF exposure compliance. To maintain compliance with
IC RF exposure compliance requirements, please avoid direct contact to the
transmitting antenna during transmitting.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.

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1.6 Redline Limited Standard Warranty
Warranty Policy
Redline warrants that (i) Redline has all Intellectual Property Rights necessary to
sell the Redline Products, and to license the Software in accordance with the
terms of this policy; and (ii) each Redline Product will be free from defects in
material and workmanship and will conform to Redline's specifications for the
particular Product for a period of 12 months from the date of delivery.
Redline's exclusive remedy for any defective Product is limited to the repair or
replacement of the defective Product at Redline's sole discretion. Redline will
have a reasonable time after determining that a defective Product exists to repair
or replace a defective Product. Redline's replacement Product under its limited
standard warranty will be manufactured from new and serviceable used parts.
Redline's warranty applies to repaired or replaced Products for the balance of the
applicable period of the original standard warranty or ninety days from the date of
shipment of a repaired or replaced Product, whichever is longer.
Important -- Warranty Information
Ethernet Cable: The outdoor subscriber factory warranty is valid only
if the Redline supplied outdoor CAT-5 Ethernet cable is installed and
properly weatherproofed according to instructions in this manual.
PoE Equipment: The outdoor subscriber factory warranty is valid only
if the Redline supplied Power Over Ethernet (PoE) power adapter is used.
Refer to the technical specifications in this manual for a list of Redline
approved PoE equipment.
<
All defective Redline Products, or defective components thereof, returned under
this warranty shall become Redline's property.
Limitations
The foregoing warranties apply only to Redline Certified Partners and to its End-
Users. Redline shall provide warranty service only for the most current version of
the Redline Products. Redline shall have no obligation to provide warranty
services if the Material Defect in the Redline Product is caused by a malfunction
of non-Redline hardware or software, by modification of the Redline Product not
made by Redline, by operator error, or by use of the Redline Product that is not in
accordance with the operating instructions for the Redline Products. Redline will
accept warranty returns only from Certified Partners and these Certified Partners
must arrange all details of such returns with End-Users eligible under the
foregoing warranties.
Redline has no liability for general, consequential, incidental or special damages.
These includes lost profits and the cost of the installation or removal of any
Products, the installation of repaired or replacement Products, and any inspection,
testing, or redesign caused by any defect or by the repair or replacement of
Products arising from a defect in any Product.

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Disclaimer
EXCEPT FOR THE WARRANTIES STATED IN THE ABOVE, REDLINE
DISCLAIMS ALL EXPRESS OR IMPLIED WARRANTIES ON REDLINE
PRODUCTS FURNISHED HEREUNDER, INCLUDING WITHOUT LIMITATION
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE AND NON-INFRINGEMENT. ANY "ACTS OF GOD"
INCLUDING LIGHTNING DAMAGE WILL NOT BE COVERED UNDER THIS
WARRANTY AND ANY DAMAGE TO THE EQUIPMENT AS A RESULT OF AN
"ACT OF GOD" WILL NOT BE COVERED UNDER THE REDLINE WARRANTY
POLICY. THE CERTIFIED PARTNER WILL BE BILLED FOR THE PRICE OF THE
PRODUCT FOR ANY PRODUCT RETURNED TO REDLINE THAT IS DEEMED TO
HAVE FAILED AS A RESULT OF AN "ACT OF GOD" OR MODIFICATIONS NOT
MADE BY REDLINE.
1.7 Important Service Information
1. Refer all repairs to qualified service personnel. Do not remove the covers or
modify any part of this device, as this voids the warranty.
2. Disconnect the power to this product and return it for service if the following
conditions apply:
a) The unit does not function after following the operating
instructions outlined in this manual.
b) Liquid has been spilled or a foreign object is inside.
c) The product has been dropped or the housing is damaged.
3. Record the serial number on your registration card for future reference.
1.8 WEEE Product Return Process
Figure 1:Notices - WEEE Logo
In accordance with the WEEE (Waste from Electrical and Electronic Equipment)
directive, 2002/96/EC, Redline Communications equipment is marked with the
logo shown above. The WEEE directive seeks to increase recycling and re-use of
electrical and electronic equipment. This symbol indicates that this product should
not be disposed of as part of the local municipal waste program. Contact your
local sales representative for additional information.

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Chapter
2
2
2 O Ov ve er rv vi ie ew w
Congratulations on your purchase of the Redline WiMAX Certified subscriber
wireless broadband product. Redline Communications is a world leader in design
and production of WiMAX and proprietary Broadband Fixed Wireless (BFW)
systems.
The outdoor subscriber is carrier class high-speed IEEE 802.16-2004 WiMAX
compliant for point-to-point (PTP) and point-to-multipoint (PMP) deployment.
Figure 2: Intro - RedMAX Subscriber Indoor System
Figure 3: Intro - RedMAX Subscriber Outdoor System

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2.1 Features
2.1.1 IEEE 802.16 WiMAX Compliance
The IEEE 802.16-2004 specifications describe a PMP broadband wireless access
standard for systems operating in the frequency range of 2-11 GHz, and 10-66
GHz. This standard includes descriptions for both the Media Access Control
(MAC) and the physical (PHY) layers. Note that the 802.16-2004 standards are
subject to amendment, and the subscriber product design compliance applies to a
specific revision of the standard. The outdoor subscriber product does not support
mesh communication (direct subscriber-to-subscriber).
Redline is an active member of the WiMAX Forum™ and is participating in
interoperability testing in the WiMAX Forum. Redline is also an active member
of the IEEE 802.16-2004 standards committee and has been instrumental in
creating the original 802.16-2004 standards, and is active in recommending,
writing and following-up work on new amendments to the 802.16-2004
specifications.
2.1.2 PHY Specification
The subscriber system is designed for 2-11 GHz operation based on the
WirelessMAN-OFDM PHY definition in the IEEE 802.16-2004 specifications.
The subscriber uses Orthogonal Frequency Division Multiplexing (OFDM).
OFDM is a multi-carrier transmission technique where the data stream is split and
transmitted (at a reduced rate) in parallel streams on separate sub-carriers. OFDM
uses the Fast Fourier Transform (FFT) algorithm to implement modulation and
demodulation functions. Using adequate channel coding and bit-interleaving,
OFDM performs very well in severe multipath environments, mitigates
frequency-selective fading, and provides high spectral efficiency.
2.1.3 Time Division Duplexing (TDD)
The subscriber system uses time division duplexing (TDD) to transmit and
receive on the same RF channel. The subscriber can also transmit and receive
using separate RF channels, referred to as half-duplex FDD (HD-FDD). These are
both non-contention based methods for providing an efficient and predictable
two-way PTP or PMP cell deployment. All uplink and downlink transmission
scheduling is managed by the WiMAX base station. The base station sends data
traffic to subscribers, polls for grant requests, and sends grant acknowledgements
based on the total of all traffic to all subscribers.
2.1.4 Coding Rate
Each burst of data transmitted over the air is padded with redundant information
to make it resistant to errors introduced during transmission. The coding rate is
the ratio of user data to the total data transmitted including the redundant error
correction data. The subscriber supports coding rates of 1/2, 2/3, and 3/4.

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2.1.5 Modulation
The modulation technique specifies how the data is coded within the OFDM
carriers. The subscriber supports BPSK, QPSK, 16 QAM, and 64 QAM
modulation.
2.1.6 Automatic Repeat Request (ARQ)
The ARQ mechanism provides automatic retransmission of errored data and
unacknowledged data without involving higher-layer protocols. This is effective
in recovery during Fast Fade conditions.
2.1.7 Reed Solomon Error Correction
Outer Reed-Solomon and inward Convolution Coding (RS-CC) error correction is
enabled for all traffic rates, with the exception of BPSK 1/2 where only inward
Convolution Coding is used. These low-level processes can correct bursts of
errors in received messages and reduce the number of retransmissions.
2.2 Deployment Models
The subscriber supports point to point (PTP) and point to multipoint (PMP)
deployment scenarios.
2.2.1 PTP Deployment
When deployed in a PTP configuration the base station establishes a dedicated bi-
directional link to a single subscriber. The PTP deployments typically use a
directional narrow beam antenna for both ends of the link.
Figure 4: System - PTP Line of Sight Deployment
2.2.2 PMP Deployment
When deployed in a PMP configuration the base station establishes bi-directional
links to more than one subscriber. The PMP deployments typically use a wide
beam (sector) antenna at the base station and a narrow beam antenna at the
subscriber. Service flows are used to police service level agreements for each
subscriber.

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2.2.3 Non Line-of-Sight
The subscriber system supports line-of-sight (LOS), optical line-of-sight (OLOS),
and non line-of-sight (NLOS) operation. A clear LOS link has no obstacles within
60% of the first Fresnel zone of the direct path. An OLOS link has obstructions
within 60% of the first Fresnel zone, but a visible path exists from the base station
to the subscriber.
Figure 5: System - Fresnel Zone
A wireless link is considered non LOS if natural or man-made structures block the
visible path between the base station and subscriber. In this case, a wireless link
can be established only if a reflective path can be established between the base
station and subscriber.
Figure 6: System - Non-Line of Sight Deployment
2.2.4 Channelization
The subscriber is a frequency-specific system, with the frequency band defined by
the internal transceiver unit. The use of the operating band must be in accordance

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with European Conference of Postal and Telecommunications Administrations
(CEPT) Recommendation 14-03.
The subscriber divides the available frequency band into channels. Allocation of
channels during deployment is dependent on spectrum availability in the licensed
FWA band (3400-3600 MHz) and local licensing requirements and conditions.
Channel selection allows planners to obtain the maximum geographic coverage,
while avoiding frequency contention in adjacent sectors.
2.3 Service Flows
Service flows are a key feature of the 802.16 standard. A Service Flow represents
a unidirectional data flow having separate QoS settings for uplink and downlink.
Service flows provide the ability to set up multiple connections to each subscriber
in a sector.
Separate service flows can be established for uplink and downlink traffic, where
each service flow is assigned a unique service level category and separate QoS
settings. This feature allows segregation of high-speed/high-priority traffic from
less time-critical flows.
2.3.1 Service Flow Classification
Data packets are forwarded by the subscriber based on classification rules.
Classification rules require examining each packet for pattern matches such as
destination address, source address, or VLAN tag. All classification is defined at
the base station and the classification parameters are downloaded to the
subscriber.
A service flow is partially characterized by the following attributes:
1. A 32-bit Service Flow ID (SFID) is assigned to all existing service flows. The
SFID serves as the principal identifier for the Service Flow and has an
associated direction.
2. A 16-bit Connection ID (CID) is associated with each active SFID
(connection active).
3. A set of QoS parameters specifying the required resources. The principal
resource is bandwidth, but the specification may also include latency
requirements.
4. A set of QoS parameters defining the level of service being provided.
2.3.2 Dynamic Service Addition
Service flows are defined and stored in the base station. For each service flow to
be established, the base station sends a setup message to the subscriber specifying
the required set of QoS parameters. The subscriber responds to each request by
accepting or rejecting the setup message.
A service flow may be pre-provisioned or can be dynamically created and deleted
without service outage. This is useful for supporting multiple subscribers in a
single sector. New subscribers can be added and existing subscribers can be
removed or have service levels modified.

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Setup messages are sent by the base station following any subscriber power-cycle,
loss and recovery of the wireless link to a subscriber, or any service flow
add/delete operation at the base station.
2.3.3 Uplink Service Flow Scheduling
The base station enforces QoS settings for each service flow by controlling all
uplink and downlink traffic scheduling. This provides non-contention based
traffic model with predictable transmission characteristics. By analyzing the
aggregate requests of all subscribers, the base station ensures that uplink and
downlink traffic conforms with the current service level agreements (SLAs).
Centralized scheduling increases traffic predictability, eliminates contention, and
provides maximum opportunity for reducing overhead.
Real-Time Polling Service (rt-PS)
The base station schedules a continuous regular series of transmit opportunities
for the subscriber to send variable size data packets. The grant size is based on the
current data transfer requirement. Typical applications include streaming MPEG
video or VOIP with silence suppression. This is efficient for applications that
have a real-time component and continuously changing bandwidth requirements.
Non-Real-Time Polling Service (nrt-PS)
The base station schedules regular transmit opportunities for the subscriber to
send variable size data packets. Typical applications may include high bandwidth
FTP. The polling period may typically be one second or less, even during periods
of network congestion.
Best Effort (BE)
The base station schedules transmit opportunities for the subscriber to send traffic
based on unused bandwidth after all higher level traffic scheduling requirements
are serviced. Typical applications may include Internet access and email. Best
effort service flows can be assigned a priority of 0 to 7.
Unsolicited Grant Service (UGS)
The base station schedules a continuous series of transmit opportunities for the
subscriber to send fixed size data packets. This schedule supports real-time
applications including VoIP or TDM transport. The UGS pre-scheduled grants
guarantee reserved bandwidth and reduce latency introduced by repetitive grant
requests. The service flow will not transmit packets larger than nominal grant
interval.
2.3.4 Downlink Service Flow Scheduling
The base station schedules downlink traffic on active service flows based on the
minimum reserved data rate (CIR), traffic priority, and maximum latency.

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Chapter
3
3
3 I In nd do oo or r U Un ni it t F Fe ea at tu ur re es s
Each operational RedMAX network is comprised of a (WiMAX compatible) base
station and one or more subscriber units. The subscriber is connected to a remote
Ethernet network and establishes a bi-directional data link with a designated base
station.
3.1 Indoor Subscriber with Integrated Antenna
The subscriber is a fully integrated unit with a built-in antenna. The subscriber
system includes:
- Subscriber with integrated antenna
- Indoor Power adapter with AC power cord (NA/UK/EU)
- Desktop Stand
- Universal mounting bracket
-
Figure 7: Subscriber System Features

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3.2 LED Indicators
The subscriber features LED indicators to assist with installation and
troubleshooting of the wireless interface and the Ethernet interface.
Figure 8: Subscriber LED Display
3.2.1 WiMAX / WAN Signal
The subscriber features five LEDs to indicate signal strength. If no signal or a
weak signal is detected, only the left LED (-) will be lit. As signal strength
increases, more LEDs will be lit. A strong signal is indicated by all LEDs being
lit.
Table 3:System - Indoor CPE WAN LEDs
Phase Activity Description
1 Power-on /
Reset
All LEDs are on for a short period.
2 Frequency
Scanning
Walking LED on (left to right to left).
3 Network
Entry
The number of LEDs blinking represent the received
signal strength. Value is from zero (all LEDs off) to
five (all LEDs on). See table following.
4 Subscriber
is
Registered
The number of LEDs on represent the received signal
strength. Value is from zero (all LEDs off) to five (all
LEDs on). See table following.
Table 4:System - Indoor CPE WAN LEDs - Signal Strength
LED Indicators Lit Signal Strength (RSSI)
5 < -45
4 -45 to -58.9
3 -58 to -75.3
2 -75 to -86.5
3.2.2 LAN System
The LAN LEDs indicate connectivity and activity on the Ethernet port. Refer to
the following table for details.
Table 5:System - LAN LEDs
Left LED LED is on when the Ethernet port connection is active.
Right LED LED blinks when there is Ethernet data traffic.