Invention Grant
US07787546B2 Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network 有权
用于FT预编码数据以减少多载波无线网络中的PAPR的装置和方法

  • Patent Title: Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network
  • Patent Title (中): 用于FT预编码数据以减少多载波无线网络中的PAPR的装置和方法
  • Application No.: US11374928
    Application Date: 2006-03-14
  • Publication No.: US07787546B2
    Publication Date: 2010-08-31
  • Inventor: Farooq Khan
  • Applicant: Farooq Khan
  • Applicant Address: KR Suwon-si
  • Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee: Samsung Electronics Co., Ltd.
  • Current Assignee Address: KR Suwon-si
  • Main IPC: H04K1/10
  • IPC: H04K1/10
Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network
Abstract:
A subscriber station for use in a wireless network capable of communicating according to a multi-carrier protocol, such as OFDM or OFDMA. The subscriber station comprises a size M Fourier Transform (FFT or DFT) block for receiving input symbols and generating M FT pre-coded outputs and a size N inverse Fourier Transform (IFFT or IDFT) block capable of receiving N inputs, where the N inputs include the M FT pre-coded outputs from the size M FT block. The size N IFT block generates N outputs to be transmitted to a base station of the wireless network. The input symbols comprise user data traffic to be transmitted to the base station. The size N IFT block also receives signaling and control information on at least some of N-M inputs. The FT pre-coding generates a time-domain signal that has a relatively lower peak-to-average power ratio (PAPR).
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