公开(公告)号：WO2010078061A3

公开(公告)日：2010-12-16

申请号：PCT/US2009068605

申请日：2009-12-17

Applicant: QUALCOMM INC ,  NARASIMHA MADIHALLY J ,  KIM JE WOO ,  YU YUANNING ,  PARK JONG HYEON

Inventor： NARASIMHA MADIHALLY J ,  KIM JE WOO ,  YU YUANNING ,  PARK JONG HYEON

IPC: H04L27/26

CPC classification number: H04L27/2614

Abstract: Certain embodiments of the present disclosure relate to methods for peak-to-average power ratio (PAPR) reduction of a transmission signal in a single carrier frequency division multiple access (SC-FDMA) system. The proposed methods and systems are based on manipulations of an SC-FDMA transmission signal in a time- and/or a frequency-domain.

Abstract translation: 本公开的某些实施例涉及用于单载波频分多址（SC-FDMA）系统中的传输信号的峰均功率比（PAPR）降低的方法。 所提出的方法和系统基于在时域和/或频域中操作SC-FDMA传输信号。

公开(公告)号：WO2008057584A3

公开(公告)日：2009-04-09

申请号：PCT/US2007023547

申请日：2007-11-07

Applicant: QUALCOMM INC ,  ZHU JIE ,  PARK JONG HYEON ,  KIM JE WOO

Inventor： ZHU JIE ,  PARK JONG HYEON ,  KIM JE WOO

IPC: H04K1/10

CPC classification number: H04L27/2656 ,  H04L5/0007 ,  H04L27/2684

Abstract: An embodiment of the invention is a technique for preamble detection and synchronization. A symbol correlation of a sequence of symbols is computed in a correlation window using one of a time-domain correlation and a frequency-domain correlation. The sequence of symbols is received in an orthogonal frequency division multiple access (OFDMA) wireless communication. A symbol is verified from the symbol correlation. The symbol is one of a preamble symbol and a data symbol.

Abstract translation: 本发明的实施例是用于前导码检测和同步的技术。 使用时域相关和频域相关之一，在相关窗中计算符号序列的符号相关性。 在正交频分多址（OFDMA）无线通信中接收符号序列。 从符号相关性验证符号。 符号是前导符号和数据符号之一。