Thursday, May 8, 2008

Mobile WiMax and WiBro PHY Specification

Mobile WiMax PHY Specification
Frequency Band2Ghz-11Ghz for fixed & 2Ghz-6Ghz for mobile application
Channel BandwidthScalable bandwidth between 1.25Mhz to 20Mhz
FFT sizeMobile-28,512,1024,2048 and Fixed-256
DuplexingTDD and FDD
Multiple AccessSOFDMA
Modulation schemeQPSK, 16QAM, 64QAM
Frame length5mSec
Data throughput~ 70Mbps DL/UL
Mobility~ 120kmph
Cell coverage1mile-3mile

WiBro PHY Layer Specification
Frequency Band2.3Ghz-2.4Ghz
Channel BandwidthScalable bandwidth between 1.25Mhz to 20Mhz
FFT size8.75Mhz
DuplexingFDD
Multiple AccessOFDMA
Modulation schemeQPSK, 16QAM, 64QAM
Frame length5mSec
Data throughput~ 50Mbps DL/UL
Mobility~ 100kmph
Cell coverage~1km
Channel CoddingCTC(Convolution Turbo Coding)
Key FeaturesAMC, HARQ, MIMO etc..

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