Title:
直交周波数分割多重方式を使用する移動通信システムにおける副搬送波割り当てのための装置及び方法
Document Type and Number:
Japanese Patent JP4008917
Kind Code:
B2
Abstract:
An apparatus and a method capable of effectively allocating sub-carriers for a plurality of users and transmitting the sub-carriers to users through multiple antennas in an orthogonal frequency division multiplexing (OFDMA) mobile communication system are provided. A sub-carrier allocation method reduces transmission power by taking a desired bit rate and power budget into consideration. The sub-carriers are optimally allocated to each antenna, so that peak to average power ratio (PARR) is reduced and Quality of Service (QoS) is improved. The apparatus and the method are adaptable for multi-users and obtain space diversity gain through multiple antennas.
Inventors:
Kure Gentin
Yu Hyun
Lee
Cui Jin Kei
Bunsho stone
Yu Hyun
Lee
Cui Jin Kei
Bunsho stone
Application Number:
JP2004328140A
Publication Date:
November 14, 2007
Filing Date:
November 11, 2004
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H04J11/00; H04L1/06; H04L27/26; H04W16/02; H04W16/28; H04W72/04; H04W72/08; H04W72/10
Domestic Patent References:
| JP11027231A | ||||
| JP2001238269A | ||||
| JP10191431A | ||||
| JP2000261457A |
Foreign References:
| WO2002062002A1 |
Other References:
Cheong Yui Wong, R.S.Cheng, K.B.Lataief, R.D.Murch,Multiuser OFDM with adaptive subcarrier, bit, and power allocation,Selected Areas in Communications, IEEE Journal on,米国,1999年10月,Vol.17, No.10,pp.1747-1758
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro