Title:
干渉低減のためのフェムトセルネットワークにおける時間/周波数拡散のための方法
Document Type and Number:
Japanese Patent JP2012514950
Kind Code:
A
Abstract:
A femtocell network uses idle resource blocks of a data frame to reduce interference by spreading the resource blocks of the users over the available spectrum. Spreading may be achieved by repeating the transmission using a number of the resource block groups. As a result, (a) more robustness is obtained against interference; (b) transmission power levels may be decreased because of the spreading, resulting in reducing interference between nearby femtocells and between a macrocell and a femtocell. Other methods of spreading such a frequency or time slot hopping may also be used.
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Inventors:
Guventi, Ismail
Application Number:
JP2011545426A
Publication Date:
June 28, 2012
Filing Date:
January 07, 2010
Export Citation:
Assignee:
NTT DoCoMo, Inc.
International Classes:
H04W72/12; H04W16/16; H04W72/04
Domestic Patent References:
| JP2004343807A | 2004-12-02 | |||
| JP2010532937A | 2010-10-14 | |||
| JP2010502106A | 2010-01-21 |
Foreign References:
| WO2008147262A1 | 2008-12-04 | |||
| WO2007148706A1 | 2007-12-27 | |||
| WO2008024321A2 | 2008-02-28 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi
Yoshiki Kuroki
Takashi Okiyama
Kenji Fukaishi