Invention Grant
US08009764B2 Method and apparatus for improving PAPR in OFDM or OFDMA communication system
有权
用于改善OFDM或OFDMA通信系统中的PAPR的方法和装置
- Patent Title: Method and apparatus for improving PAPR in OFDM or OFDMA communication system
- Patent Title (中): 用于改善OFDM或OFDMA通信系统中的PAPR的方法和装置
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Application No.: US12093131Application Date: 2006-11-09
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Publication No.: US08009764B2Publication Date: 2011-08-30
- Inventor: Yeong Hyeon Kwon , Seung Hee Han , Min Seok Noh , Young Woo Yun
- Applicant: Yeong Hyeon Kwon , Seung Hee Han , Min Seok Noh , Young Woo Yun
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman, Kang & Waimey
- Priority: KR10-2005-0106914 20051109
- International Application: PCT/KR2006/004680 WO 20061109
- International Announcement: WO2007/055518 WO 20070518
- Main IPC: H04L25/49
- IPC: H04L25/49
Abstract:
A method and apparatus for diminishing a peak power to average power ratio (PAPR) in an OFDM/OFDMA communication system are disclosed, by which complexity in an OFDM/OFDMA communication system can be reduced. In an OFDM or OFDMA communication system, the present invention includes a circular shift module circularly shifting to output at least one or more data sequences according to circular shift information to be applied to each of the at least one or more data sequences converted to a time domain from a frequency domain, a combining module combining the at least one or more data sequences outputted from the circular shift module, and a PAPR calculating module calculating the PAPR of an entire data sequence combined by the combining module.
Public/Granted literature
- US20090304108A1 METHOD AND APPARATUS FOR IMPROVING PAPR IN OFDM OR ORDMA COMMUNICATION SYSTEM Public/Granted day:2009-12-10
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