适用于 5G NR 及更高版本的 4 流 8 单元时分 MIMO 相控阵接收机可实现 9.6Gbps 数据速率.pdf

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1、0A 4-Stream 8-Element Time-Division MIMO Phased-Array Receiver for 5G NR and Beyond achieving 9.6Gbps Data RateYi Zhang,Minzhe Tang,Zheng Li,Dongfan Xu,Kazuaki Kunihiro,Hiroyuki Sakai,Atsushi Shirane and Kenichi OkadaInstitute of Science TokyoShared ChannelIndependent Channel1SNR(Modulation)Wireless

2、 Capacity till NowBandwidthNext-Gen.Wireless CapacityShared ChannelIndependent ChannelBackgroundMIMO through Spatial MultiplexingNext-Gen.Demands Bulky Chip Area Scalability Multi-IC Array Compact Package Size Spatial multiplexing greatly improved wireless capacity Flexible wireless resource allocat

3、ion2Proposed TD-MIMO Phased-Array Receiver Beam1Beam2BeamNVery Fast Beam Switching(fSW NBW)12M12N3Beam1Beam2BeamNDemux SW0-135-(m-1)135 Beam1Beam2BeamNSWN0 135(m-1)135 Beam1Beam2BeamNSW1TD-MIMO RX in Time Slot 1TD-MIMO RX in Time Slot NCLKTime Slot 1Time Slot 1 Time Slot 2Time Slot NfCLK=NfSW NfBWti

4、meTime-division analog beam switching shares RF blocks3MIMO Architecture Comparison#Antennas#Streams#RF PathsSpatial ResolutionSNRScalability to More StreamsFC-MIMOMNMN11-TMAMNMN/A*1/M+TD-MIMOMNM11/N+12MPower Div.Power Div.Power Div.12NFully-Connected MIMO1N12M3Time-Modulated Array12N12M3Proposed TD

5、-MIMO4Measurement ResultsMode 44 MIMO OTA Beam 1-4 Freq.28GHz 28GHz Beam 1-4 Modulation*16QAM(MCS10)OFDMA Mode 64QAM(MCS17)OFDMA Mode Beam 1-4 BWc 400MHz 400MHz CLK Freq.1.6GHz 1.6GHz Constellation*EVM(RMS)*-23.32dB(6.8%)-23.5dB(6.7%)012345time ns3.2 3.4 3.6 3.8 4.0 4.2time ns1.9 2.1 2.3 2.5 2.7 2.9

6、time ns0.15ns0.15ns4ns in Pang,VLSI21 8ns in IBM,JSSC23RF Output Waveform0-30 0-30 0-30 0 Fastest reported beam switching speed(0.15ns)4-stream MIMO reception in OTA measurement5Performance Comparison00.10.20.30.40.50.60.70.8RF Element Area per MIMO Stream mm2