AR060369A1 - Metodos y aparatos para reducir una relacion de pico- promedio para una senal de transmision de ofdm - Google Patents
Metodos y aparatos para reducir una relacion de pico- promedio para una senal de transmision de ofdmInfo
- Publication number
- AR060369A1 AR060369A1 ARP070101461A ARP070101461A AR060369A1 AR 060369 A1 AR060369 A1 AR 060369A1 AR P070101461 A ARP070101461 A AR P070101461A AR P070101461 A ARP070101461 A AR P070101461A AR 060369 A1 AR060369 A1 AR 060369A1
- Authority
- AR
- Argentina
- Prior art keywords
- sequence
- reduce
- demodulator
- methods
- transmission signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
- H04L27/2615—Reduction thereof using coding
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
Métodos y aparatos para reducir una relacion pico-promedio de una senal de transmision de OFDM. En un aspecto, se provee un método para reducir una relacion pico-promedio de una forma de onda de transmision. El método incluye obtener una secuencia de demodulador primada, generar una secuencia de demodulador secundaria con una longitud característica basada en los datos a ser demodulados, y combinar las secuencias del demodulador primaria y secundaria para producir una secuencia de reduccion de PAR. En otro aspecto, se provee un aparato para reducir una relacion pico-promedio de una forma de onda de transmision. El aparato incluye un generador secundario configurado para generar una secuencia de demodulador secundaria con una longitud característica basada en los datos a ser demodulados, y combinar la logica configurada para combinar una secuencia de demodulador primada y las secuencias del demodulador secundarias para producir una secuencia de reduccion de PAR.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78955806P | 2006-04-04 | 2006-04-04 | |
US11/519,256 US7991040B2 (en) | 2006-04-04 | 2006-09-11 | Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal |
Publications (1)
Publication Number | Publication Date |
---|---|
AR060369A1 true AR060369A1 (es) | 2008-06-11 |
Family
ID=38331101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP070101461A AR060369A1 (es) | 2006-04-04 | 2007-04-04 | Metodos y aparatos para reducir una relacion de pico- promedio para una senal de transmision de ofdm |
Country Status (7)
Country | Link |
---|---|
US (2) | US7991040B2 (es) |
EP (1) | EP2008420A1 (es) |
JP (1) | JP2009533006A (es) |
KR (2) | KR100964777B1 (es) |
AR (1) | AR060369A1 (es) |
TW (1) | TW200810450A (es) |
WO (1) | WO2007115331A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7991040B2 (en) | 2006-04-04 | 2011-08-02 | Qualcomm Incorporated | Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal |
US8503547B2 (en) * | 2007-10-11 | 2013-08-06 | Qualcomm Incorporated | Scrambling codes for secondary synchronization codes in wireless communication systems |
US7729237B2 (en) * | 2008-03-17 | 2010-06-01 | Lg Electronics Inc. | Method of transmitting reference signal and transmitter using the same |
US8913626B2 (en) * | 2012-05-15 | 2014-12-16 | Entropic Communications, Inc. | Signal processing of multiple streams |
JP6221308B2 (ja) * | 2013-04-04 | 2017-11-01 | アイコム株式会社 | 通信機および通信方法 |
JP6217114B2 (ja) * | 2013-04-04 | 2017-10-25 | アイコム株式会社 | 通信機および通信方法 |
CN104917712B (zh) * | 2014-03-14 | 2018-06-05 | 华为技术有限公司 | 信号处理方法及装置 |
US10594530B2 (en) * | 2018-05-29 | 2020-03-17 | Qualcomm Incorporated | Techniques for successive peak reduction crest factor reduction |
WO2020025252A1 (en) * | 2018-07-31 | 2020-02-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Method, transmitter, structure, transceiver and access point for provision of multicarrier on-off keying signal |
CN109905344B (zh) * | 2019-03-25 | 2021-04-27 | 西安电子科技大学 | 基于部分传输序列的ofdm信号峰均比抑制方法 |
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US4341925A (en) * | 1978-04-28 | 1982-07-27 | Nasa | Random digital encryption secure communication system |
US5596330A (en) * | 1992-10-15 | 1997-01-21 | Nexus Telecommunication Systems Ltd. | Differential ranging for a frequency-hopped remote position determination system |
JPH06152564A (ja) * | 1992-11-04 | 1994-05-31 | Clarion Co Ltd | スペクトラム拡散通信装置 |
US5546424A (en) * | 1993-06-30 | 1996-08-13 | Casio Computer Co., Ltd. | Spread spectrum communication system |
MY112371A (en) * | 1993-07-20 | 2001-05-31 | Qualcomm Inc | System and method for orthogonal spread spectrum sequence generation in variable data rate systems |
US6826169B1 (en) * | 1996-12-20 | 2004-11-30 | Fujitsu Limited | Code multiplexing transmitting apparatus |
KR100369794B1 (ko) * | 1997-08-18 | 2003-04-11 | 삼성전자 주식회사 | 이동통신시스템의송신장치의대역확산신호발생장치및방법 |
US5955917A (en) * | 1997-08-27 | 1999-09-21 | Hughes Electronics Corporation | Nonlinear amplifier calibration system and methods |
JP3329705B2 (ja) * | 1997-09-02 | 2002-09-30 | 松下電器産業株式会社 | Pn符号発生装置及び移動無線通信システム |
AU754257B2 (en) * | 1997-10-10 | 2002-11-07 | Qualcomm Incorporated | Multi-layered PN code spreading in a multi-user communications system |
US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
US6044074A (en) * | 1997-11-10 | 2000-03-28 | Qualcomm Incorporated | Rapid signal acquisition and synchronization for access transmissions |
JP3897427B2 (ja) * | 1997-12-01 | 2007-03-22 | 松下電器産業株式会社 | 基地局装置、移動局装置、移動体通信システム、無線送信方法及び無線受信方法 |
FI105741B (fi) * | 1998-02-12 | 2000-09-29 | Nokia Networks Oy | Tiedonsiirtomenetelmä ja radiojärjestelmä |
JP3716398B2 (ja) * | 1998-03-05 | 2005-11-16 | 富士通株式会社 | アレーアンテナによる到来方向推定方法及び該方法を用いたds−cdma受信装置 |
US6310869B1 (en) | 1998-08-31 | 2001-10-30 | Qualcomm Incorporated | Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols |
AU734411B2 (en) * | 1998-09-29 | 2001-06-14 | Samsung Electronics Co., Ltd. | Device and method for generating spreading code and spreading channel signals using spreading code in CDMA communication system |
US7443906B1 (en) * | 1999-05-31 | 2008-10-28 | Electronics And Telecommunications Research Institute | Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system |
US6853686B1 (en) | 2000-01-14 | 2005-02-08 | Agere Systems Inc. | Frame formatting technique |
JP3739985B2 (ja) * | 2000-01-31 | 2006-01-25 | 富士通株式会社 | 送信機利得安定化装置 |
JP2002033716A (ja) * | 2000-07-18 | 2002-01-31 | Sony Corp | Cdma拡散方法およびcdma端末装置 |
AU2002249851A1 (en) * | 2000-10-27 | 2002-08-12 | L-3 Communications Corporation | Adaptive, multi-rate waveform and frame structure for a synchronous ds-cdma system |
KR100724929B1 (ko) * | 2001-10-06 | 2007-06-04 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템에서 스크램블링 코드생성장치 및 방법 |
US7515615B2 (en) | 2003-01-13 | 2009-04-07 | Broadcom Corporation | Systems and methods for pseudo-random signal generation in a multi-carrier communications system |
US6970518B2 (en) * | 2003-03-11 | 2005-11-29 | Motorola, Inc. | Method and apparatus for electronic item identification in a communication system using known source parameters |
FR2871313B1 (fr) * | 2004-06-08 | 2006-08-18 | Thales Sa | Procede de transmission d'un signal de radionavigation |
JP4869724B2 (ja) * | 2005-06-14 | 2012-02-08 | 株式会社エヌ・ティ・ティ・ドコモ | 送信装置、送信方法、受信装置及び受信方法 |
US7991040B2 (en) | 2006-04-04 | 2011-08-02 | Qualcomm Incorporated | Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal |
-
2006
- 2006-09-11 US US11/519,256 patent/US7991040B2/en active Active
-
2007
- 2007-04-04 KR KR1020087026779A patent/KR100964777B1/ko not_active IP Right Cessation
- 2007-04-04 JP JP2009504466A patent/JP2009533006A/ja active Pending
- 2007-04-04 EP EP07760139A patent/EP2008420A1/en not_active Ceased
- 2007-04-04 WO PCT/US2007/066004 patent/WO2007115331A1/en active Application Filing
- 2007-04-04 KR KR1020107008393A patent/KR20100045531A/ko not_active Application Discontinuation
- 2007-04-04 AR ARP070101461A patent/AR060369A1/es active IP Right Grant
- 2007-04-04 TW TW096112210A patent/TW200810450A/zh unknown
-
2011
- 2011-06-24 US US13/168,849 patent/US20110255622A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20110255622A1 (en) | 2011-10-20 |
KR100964777B1 (ko) | 2010-06-21 |
TW200810450A (en) | 2008-02-16 |
JP2009533006A (ja) | 2009-09-10 |
KR20080108332A (ko) | 2008-12-12 |
KR20100045531A (ko) | 2010-05-03 |
US7991040B2 (en) | 2011-08-02 |
US20070230596A1 (en) | 2007-10-04 |
EP2008420A1 (en) | 2008-12-31 |
WO2007115331A1 (en) | 2007-10-11 |
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