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WiMAX is a broadband radio access
technology based on the IEEE 802.16
protocol. To apply this technology, you need
to be familiar with the basic concepts and
technology benefits of WiMAX.
This document describes the basic concepts,
application scenarios, and network structure
of WiMAX.
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Chapter 1 Basic Concepts of WiMAXChapter 1 Basic Concepts of WiMAX
Chapter 2 Application Scenarios of
WiMAX
Chapter 3 Network Structure of
WiMAX
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Basic Concepts of WiMAX
Worldwide Interoperability for Microwave Access
IEEE 802.15 Bluetooth
WAN
MAN
LAN
PAN ETSIHiperPAN
IEEE 802.11 Wireless LAN
ETSIHiperLAN
IEEE 802.16-Wireless MAN
ETSI HiperMAN& HiperAccess
IEEE 802.20(proposed)
3GPP,3GPP2
Worldwide Interoperability for MicrowaveWorldwide Interoperability for Microwave Access (WiMAX) Access (WiMAX)
WiMAX based on the IEEE802.16 protocol is a broadband wireless technology appliedto the Metropolitan Area Network (MAN).It complies with the "Broadband + Wireless" trend. WiMAX features the OrthogonalFrequency Division Multiplex Access (OFDMA), Multiple Input Multiple Output (MIMO),and other advanced technologies to maintain its broadband advantage.It is called "3.5G" or "4G" technology. In October of 2007, it becomes the fourth standardof 3G technology.
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Protocols
WiMAX is based on the 802.16 protocol that has two standards:
802.16dFixed broadband radio access standard
It specifies the air interface layer between the fixed access
terminals and the BTS.
802.16eMobile broadband radio access standard
It supports the mobile station.
It supports both the fixed broadband radio access system and
mobile broadband radio access system.
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Chapter 1 Basic Concepts of
WiMAX
Chapter 2 Application Scenarios of Chapter 2 Application Scenarios of
WiMAXWiMAX
Chapter 3 Network Structure of WiMAX
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NomadicFixed Simple Mobility Full-rate Mobility
Application Scenarios of WiMAX
Portable
Fixed(16d/16e)
Nomadic(16e)
Portable(16e)
Simple Mobility16e)
Full-rate Mobility16e)
Application
Application inbuildings,application in thehigh-levelresidences
Family indoor access,terminal access(It does not supporthandovers.)
Family outdoor access,Mobile terminalaccess
(It supportshandovers.)
Medium-rateterminal access
high-rate terminalaccess
Terminal CPE PCMCIA, USBmodule
PCMCIA, USBmodule, embeddedportable terminal
PDA , mobile terminal
Mobility No No > 5 km/h > 60 km/h >120 km/h
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Q oS-Based Services
Unsolicited Grant Service (UGS)
Extended Real-time Polling Service (ertPS) VoIP
Real-time Polling Service (rtPS) MPEG video
Non-real-time Polling Service (nrtPS) FTP service
Best Effort (BE) network browse, e-mail
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Chapter 1 Basic Concepts of
WiMAX
Chapter 2 Application Scenarios of
WiMAX
Chapter 3 Network Structure of Chapter 3 Network Structure of WiMAXWiMAX
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End-to-End Network Structure of WiMAX
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Interface Introduction
Interface Description
R1 R1 interface between the MS and the ASN as the air interfacespecification for (PHY and MAC)
R2 R2 is the interface between the MS and the CSN associated with
Authentication, Service Authorization, IP Host configuration management,and mobility management. R2 is a logical interface and does not reflect adirect protocol interface between the MS and CSN.
R3 R3 is the interface between the ASN and CSN to support AAA, policyenforcement and mobility management capabilities. In addition, R3encompasses the bearer plane methods (e.g., tunneling) to transfer IPdata between the ASN and the CSN.
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Interface Introduction
Interface Description
R4 R4 consists of a set of control and bearer plane protocols originating andterminating in various entities within the ASN that coordinate MS mobilitybetween ASNs.
R5 R5 consist of a set of control plane and bearer plane protocols for interworking between CSNs
R6 R6 provides the communication between the BS and the ASN GW whichprovides a set of control and bearer plane protocols.
R8 R8 is a set of control plane message flows and in some causes, bearer plane data flows between the BS to ensure fast seamless handover.
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SpecificationDistributed BTSChannel Bandwidth: 5 MHz or 10 MHzFrequency: 2.3 G, 2.5 G, or 3.5 GMIMOTransmit power: 10 W/20 W (3.5 G or 2.5 G)Weight
BBU: 5 kgRRU: 22 kg or 15 kg
Dimensions (width x depth x height) (mm)BBU: 436 x 300 x 42RRU: 430 x 176 x 571(with rack)
350 x 125 x 440(without rack)Service port: FE/GE
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WASN9770
N68-22service cabinet, dimensions:2200 mm x 600 mm x 800 mmComponents:
WASN rack (mandatory)Power distribution box(mandatory)LAN switch (optional)Fire wall (optional)
In the case of dual-plane networking,both the LAN switch and firewall canbe used.
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