A femtocell increases efficiency and coverage of a macrocellular network operating in a co-channel manner within the macrocell spectrum by selecting subcarriers for its mobile station using both the subcarrier allocation map received from the macrocell and a spectrum sensing operation. Interference is avoided by selecting only subcarriers not allocated by the macrocell and subcarriers allocated to users not nearby to the femtocell. Interference is eliminated from the received signals using co-channel interference avoidance techniques. Selection of subcarriers for femtocell use may take into consideration inter-carrier interference detected.
申请公布号
WO2009111392(A3)
申请公布日期
2009.12.30
申请号
WO2009US35716
申请日期
2009.03.02
申请人
NTT DOCOMO, INC.;SAHIN, MUSTAFA EMIN;ARSLAN, HUSEYIN;GUVENC, ISMAIL;JEONG, MOO RYONG
发明人
SAHIN, MUSTAFA EMIN;ARSLAN, HUSEYIN;GUVENC, ISMAIL;JEONG, MOO RYONG