Title:
セル間干渉除去システム及びスケジューラ
Document Type and Number:
Japanese Patent JP5075198
Kind Code:
B2
Abstract:
Embodiments of the invention provide a controller, in a cellular wireless network for cancellation of interference from neighboring cells. Logic in the controller determines channel quality of a radio channel between a first base station and a UE. Scheduling logic causes the first base station to adjust a number of data streams used for communication with the UE and a second base station to adjust a number of data streams used for communication to a second UE within a time period, as a function of the channel quality. Other embodiments provide an apparatus for reducing interference in a receiver that receives N data streams. Signal processing logic receives the N data streams, where N-M of the data streams represent interference with respect to M desired data streams, and cancels the N-M data streams so as to receive the M desired data streams. The N data streams may be received from multiple base stations, or multiple UEs.
Inventors:
Anderson, Nicholas
Application Number:
JP2009515854A
Publication Date:
November 14, 2012
Filing Date:
June 18, 2007
Export Citation:
Assignee:
Intellectual Ventures Holding 81 LLC
International Classes:
H04J99/00; H04J11/00; H04W16/28; H04W36/18; H04W72/08
Domestic Patent References:
| JP2004072624A | ||||
| JP2005508584A | ||||
| JP2007533216A | ||||
| JP2007529134A | ||||
| JP2007074655A | ||||
| JP2008523665A | ||||
| JP2004007279A |
Foreign References:
| WO2006063138A1 | ||||
| WO2001076306A1 |
Other References:
Nicola Marchetti, Riccardo Veronesi, Velio Tralli,Allocation and adaptation techniques for protocol performance improvement in multicellular wireless packet networks with MIMO links,Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE,2004年12月 3日,pp.3143-3148
Sudhanshu Gaur, Jeng-Shiann Jiang, Mary Ann Ingram, M.Fatih Demirkol,Interfering MIMO links with stream control and optimal antenna selection,Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE,2004年12月 3日,pp.3138-3142
M.Fatih Demirkol, Mary Ann Ingram,Stream Control in Networks with Interfering MIMO Links,Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE,2003年 3月20日,pp.343-348
Sudhanshu Gaur, Jeng-Shiann Jiang, Mary Ann Ingram, M.Fatih Demirkol,Interfering MIMO links with stream control and optimal antenna selection,Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE,2004年12月 3日,pp.3138-3142
M.Fatih Demirkol, Mary Ann Ingram,Stream Control in Networks with Interfering MIMO Links,Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE,2003年 3月20日,pp.343-348
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Toshifumi Onuki