LTE LTE-Aの基礎

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4 , 2014 7 GPP LTE, LTE-A , 3 WCDMA 3 GPP 3rd Generation Partnership Project LTE 2007 8 9 8 MIMO 10 LTE-Advanced 2010 3 1999 WCDMA :UMTS 1999 99 WCDMA (HSPA 5 LTE 8, LTE-A 10 99 W-CDMA UMTS 5 HSDPA 8 LTE 10 LTE-A 6 HSUPA, HSPA+ 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 GPP 3 GPP LTE 8, LTE-A 10 UMTS: Universal Mobile Telecommunications System HSPA: High Speed Packet Access LTE: Long Term Evolution A2A Research Inc.)

5 , 2014 8 6 lte lte , LTE-A 3 GPP LTE 2 3 LTE TV 400 MHz FDD TDD LTE 815 890 960 698 798 GSM900 US700 J800 US850 1428 1511 1525 1660 1710 1770 AWS-U 1750 1785 1880 1850 1990 1980 1920 2300 2400 2110 2170 IMT-U AWS-D S-U 2000 2020 2180 2200 2500 2570 2620 2690 IMT Extention TDD TDD 3400 3500 3600 L-band 1910 J 1700 1448 1476 1496 J 1500 GSM1800 1805 FDD 3410 3510 PCS1900 1930 UMTS800 UMTS1800 S-D IMT-D APT700 TDD TDD 1910 TDD 1880

6 US BRS/EBS FDD TDD 3800 A2A Research Inc., 2014 9 7 LTE HSPA EV-DO LTE LAN TV OFDM MIMO 1Hz 10 MHz IP lte lte OFDM MIMO NW HetNet OFDM: Orthogonal Frequency Division Multiplex MIMO: Multi-Input Mult-Output HetNet: Heterogeneous Network LAN OFDM MIMO A2A Research Inc., 2014 10 8 LTE OFDM 15kHz OFDM 1kHz LTE UE 15kHz UE (SC OFDMA OFDM 15kHz SC-OFDMA OFDM , 3, 5, 10, 15, 20 MHz TTI 1ms 15kHz s s , s QPSK, 16 QAM, 64 QAM lte lte 8 20 MHz TTI.)

7 Transmission Time Interval s MBMS A2A Research Inc., 2014 11 OFDM FDM Frequency Division Multiplex, FFT OFDM O Orthogonal 3 OFDM 1 9 OFDM FDM OFDM A2A Research Inc.

8 , 2014 12 LTE UE QPSK, 16 QAM, 64 QAM UE QPSK,16 QAM QPSK, 16 QAM, 64 QAM 4 22 16 24 64 26 2,4,6 LTE S/N UE 1 TTI 64 QAM 16 QPSK LTE-A 64 QAM 1 10 I-ch Q-ch I-ch Q-ch I-ch Q-ch QPSK 16 QAM 64 QAM QPSK, 16 QAM, 64 QAM A2A Research Inc., 2014 13 11 LTE 8 (UE: User Equipment 20 MHz MIMO MIMO 2 4 2x2 MIMO, 5 4x4 MIMO LTE MIMO 20 MHz 3 2014 4 LTE 3 1 1 2 3 4 5 Mbit/s 10 50 100 150 300 5 25 50 50 75 20 MHz QPSK, 16 QAM, 64 QAM QPSK, 16 QAM QPSK, 16 QAM, 64 QAM MIMO 2x2 4x4 LTE 8 UE UE A2A Research Inc.)

9 , 2014 14 2 MIMO MIMO MIMO MIMO 50 Mbps MIMO 100 Mbps MIMO S/N S/N MIMO MIMO (Multiple Input Multiple Output) 1 M N A2A Research Inc., 2014 15 LTE VoIP IP LTE 3 RNC UE IP 5 UE 100 LTE 13 k WCDMA RNC k LTE RNC RNC: Radio NW Controller A2A Research Inc.

10 , 2014 16 14 LTE-A LTE A LTE MIMO WiFi HetNet SON(Self Organized Network 1 LTE-A LTE-A MIMO HetNet SON LTE-Advanced LTE UE A2A Research Inc., 2014 17 15 LTE UE 20 MHz 1 LTE-A CA 5 2 CA 2 GHz 800 MHz 20 MHz CA UE 1 LTE-A 20 MHz 100 MHz LTE-A LTE #1 #2 #3 #1 #2 #3 #4 LTE-A 20 MHz 5 100 MHz A2A Research Inc.)