Multi-Carrier and Spread Spectrum Systems: From OFDM and MC ...

270 ApplicationsTable 5-31Example of minimum PHY requirements for the OFDM modeParameter profP3 1.75 profP3 3.5 profP3 7 profP3 5.5 profP3 10B (MHz) 1.75 3.5 7 5.5 10Frame length BS selects one from 5 ms, 10 ms, and 20 ms; TS supports allReceiver sensitivity at BER = 10 −6QPSK1/2 −91 dBm −88 dBm −85 dBm −86 dBm −83 dBmQPSK3/4 −89 dBm −86 dBm −83 dBm −84 dBm −81 dBm16-QAM1/2 −84 dBm −81 dBm −78 dBm −79 dBm −76 dBm16-QAM3/4 −82 dBm −79 dBm −76 dBm −77 dBm −74 dBm64-QAM2/3 −77 dBm −74 dBm −71 dBm −72 dBm −69 dBm64-QAM3/4 −76 dBm −73 dBm −70 dBm −71 dBm −68 dBmTable 5-32Example of minimum PHY requirements for the OFDMA modeParameter profP1 1.25 profP2 3.5 profP3 7 profP4 14 profP5 28B (MHz) 1.25 3.5 7 14 28Frame length BS selects a frame duration and TS supports allReceiver sensitivity at BER = 10 −6QPSK1/2 −90 dBm −87 dBm −84 dBm −81 dBm −78 dBmQPSK3/4 −87 dBm −84 dBm −81 dBm −78 dBm −75 dBm16-QAM1/2 −84 dBm −80 dBm −77 dBm −74 dBm −71 dBm16-QAM3/4 −80 dBm −77 dBm −74 dBm −71 dBm −68 dBm64-QAM2/3 N/A −73 dBm −71 dBm −67 dBm −64 dBm64-QAM3/4 N/A −71 dBm −68 dBm −65 dBm −62 dBmTable 5-33PHY features for OFDM and OFDMAProperties64-QAMBlock Turbo codeConvolutionalTurbo codeSub-channelizationSpace time codingGuard timeMandatory or notYes for unlicensed bandsNoNoNoNoBase station supports at least one and terminal station all