B3G小区间干扰抑制技术.pdf

32 2 ( ) Vol. 32 No . 2 2011 3 Journal of H uaqiao University ( Natural Science) Mar. 2011 : 2011) 0201 504 B3G 沈振汉, 黄华灿 ( , 3 2021) : ( LTE) , . , , , LTE , LTE ; , UL ; ( MIMO) , : ; ; ; ; : T N 911.4; TN 914. 5 : A ( Beyond 3rd Generation, B3G) QoS , [ 1] , ( OFDM) OFDM , , , , OFDM LT E( Long T erm Evolution) , , OFDM 1 ( RBs) , , B3G 2G 3G , , , LT E , , B3G , [ 2] . . , , LT E R8 . 1 , , . , , , , ; , ( SINR) AWGN , , . , , . LT E OFDMA , 1 , . OFDM : : ( 1948) , , , . Email: hchuangqz@ ya hoo. com. cn. : ( 200 T000 ) ; (200 G3) 1 ( ) 2011 , . , , . , LTE , , LT E , , CDMA . LT E , , , . LT E : , , , . LTE ( HII) ( OI) ( ICIC) . 2 LTE , N = 1 OFDM , SINR , , SINR , , SINR . , 5~ , . , SINR , LT E OFDM , SINR . 3 SINR 3. 1 [ 3] , , , . 500~ 1 000 m , 10 M B , 20%; 500 m , 5% 10% ~ 15%. , 2 km , [ 3] 20% ~ 30% eNodeB , . , , - , PFS( Propor tional Fair Share) HM F( Harmonic Mean Fairness) [ 4] . PFS - 30% ~ 80%. 3. 2 OFDMA , ( SDMA ) ( M IMO) LT E SDMA MIM O , CCD SFBC MIM O M IM O , ( 2 2 M IMO 2, 4 4 MIM O 4) . M IM O , M IM O ; , , , M IM O . , M IM O M IM O , RBs, . M IM O ,