4 2 (the 2nd generation, 2G) 3 (the 3rd generation, 3G) PHS 2G PDC cdma ONE NTT 2009 3 826 au 33 2G 3G ITU IMT-2000 2002 10 NTT 3G W-CDMA CDMA2000 NTT 2009 3 6760 au 3029 3G 3.5G W-CDMA Mbps CDMA2000 2.4Mbps 100Mbps LTE(Long Term Evolution) 3.9G 1
1 1989 2009 PHS 1990 1 80% (120%) 100% 90% 1 1999 NTT i 2005 80% 2000 J- 2005 80% 2001 NTT W-CDMA 3G 2002 au CDMA2000 3G 2006 50% 90% 3G < 1> 2 2001 3 2009 3 (2G+3G) NTT i 2002 60% 50% au KDDI 2
au NTT au 5:3:2 3 MVNO(mobile virtual network operator) < 2> 3 3G 3G NTT 3G au 2004 NTT NTT au NTT au NTT 3G au < 3> 2008 1 2G 3G 2002 3G 2006 2G 3G NTT 2G 3G ( ) 3G ( ) 3
( JAVA ) 900 NTT MOVA FOMA au 2G 3G 2003 2G 3G 2G 3G au cdma ONE cdma 2000 3G 3G 3G 2 2G 3G 2004 9 2G 3G 11 20 1000 3G(37.5%) 2G(57.4%) PHS(5.2%) (50.2%) au(29.1%) (19.8%) 1 3G( 7349 au5643 ) 2G( 5836 au4021 5208 ) 2G 3G au < 1> 3G( 48.2 au36.4 ) 2G( 34.5 au22.2 25.4 ) 2G 3G au 4
PHS 87.7% 3G( 22 au19 ) 2G( 20 au16 23 ) 31.5% (8.6%) 3G( 58% au56%) 2G( 57% au49% 17%) 12.5% (52.2%) 3G( 14% au18%) 2G( 16% au11% 3%) 3G 10.9% 3G 3.5% 3G 2004 1% % ( ) % ( ) 2 < 2> 3G 3G -0.78 au3g 0.07 2G 0.47 au2g 0.06 2G 0.21 3G 1% 3G 0.8% 2G 0.5% au3g 0.1% 3G au3g 2G 2G 1% 2G 0.3% 3G 0.2% au2g 2G 0.1% 2G au2g 2G 3G 5
au3g au2g 3G GPS 1 au MVNO i ez Yahoo! 2006 10 (mobile number portability, MNP) 5,000 1 5% 6
ID ID GPS 2007 12 (PHS ) 1,142 MNP 281 ( au ) MNP 861 MNP 5% MNP 4 MNP MNP MNP au(66.9%) (18.2%) NTT (14.9%) MNP NTT (48.6%) (30.1%) au(21.3%) MNP NTT au au MNP 5% MNP NTT (54.4%) au(27.6%) (15.1%) < 4> 5 MNP MNP 20% MNP MNP 50% MNP 7
< 5> MNP MNP 22% MNP 17% 18% MNP MNP 20% MNP 52% 49% 32% MNP 26% 22% MNP 18% 17% 6% 3% 3% 49% MNP MNP 8
MNP MNP 20% MNP 20~30% 5000 MNP 6 MNP 30 40% 3 5000 MNP 5000 3000 7 5000 MNP MNP 16% MNP 12% 5000 MNP 45% MNP 37% 3000 MNP 57% MNP 49% 9
< 7> MVNO 8 (willingness to pay, WTP) 700 800 400 600 500 800 WTP WTP MNP MNP WTP WTP MNP 2992 MNP 2184 MNP 5% WTP 2224 1 WTP 2224 < 8> 10
MNP 9 MNP 37.0% MNP 36.4% MNP 12.8% MNP 15.9% MNP 55.2% MNP 52.7% PC MNP 44.8% MNP 47.3% < 9> 9 MNP 46.6% MNP 47.9% MNP 17.8% MNP 22.5% MNP 37.4% MNP 33.3% MNP 17.8% MNP 22.9% 80% < 9> 11
. 1... 3. 300. 300. 11 10% (9%) (4%) 20 40% 70 90% 12
< 11 > 12 WTP 1 WTP 1 100 200 WTP WTP(187 ) WTP(68 ) < 12 > 13
1 14
2 (2G+3G) 15
3 3G 16
1 2G 3G 2005 17
2 2G 3G 2005 18
4 MNP 2007 19
5 MNP 2007 20
6 2007 21
7 2007 22
7 2007 23
8 2007 24
9 2007 25
10 2007 26
11 2007 27