CN1522502A - 在通信***中用于后滤波峰值功率减小的***和方法 - Google Patents
在通信***中用于后滤波峰值功率减小的***和方法 Download PDFInfo
- Publication number
- CN1522502A CN1522502A CNA02813477XA CN02813477A CN1522502A CN 1522502 A CN1522502 A CN 1522502A CN A02813477X A CNA02813477X A CN A02813477XA CN 02813477 A CN02813477 A CN 02813477A CN 1522502 A CN1522502 A CN 1522502A
- Authority
- CN
- China
- Prior art keywords
- signal
- peak
- communication
- communication system
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (30)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30256501P | 2001-07-02 | 2001-07-02 | |
US60/302,565 | 2001-07-02 | ||
US10/102,493 US7170952B2 (en) | 2001-07-02 | 2002-03-20 | System and method for post filtering peak power reduction in communications systems |
US10/102,493 | 2002-03-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1522502A true CN1522502A (zh) | 2004-08-18 |
CN100358248C CN100358248C (zh) | 2007-12-26 |
Family
ID=26799426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB02813477XA Expired - Lifetime CN100358248C (zh) | 2001-07-02 | 2002-06-28 | 在通信***中用于后滤波峰值功率减小的***和方法 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1405427B1 (zh) |
KR (1) | KR100664896B1 (zh) |
CN (1) | CN100358248C (zh) |
CA (1) | CA2450378C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103346740A (zh) * | 2013-07-29 | 2013-10-09 | 中国科学院微电子研究所 | 用于抑制噪声的d类音频功率放大器及其音频信号处理方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5732333A (en) * | 1996-02-14 | 1998-03-24 | Glenayre Electronics, Inc. | Linear transmitter using predistortion |
US5991262A (en) * | 1997-03-31 | 1999-11-23 | Motorola, Inc. | Method and apparatus for reducing peak-to-average power ratio of a composite carrier signal |
US6175551B1 (en) * | 1997-07-31 | 2001-01-16 | Lucent Technologies, Inc. | Transmission system and method employing peak cancellation to reduce the peak-to-average power ratio |
JP4224168B2 (ja) * | 1999-04-23 | 2009-02-12 | パナソニック株式会社 | 基地局装置及びピーク電力抑圧方法 |
-
2002
- 2002-06-28 CA CA002450378A patent/CA2450378C/en not_active Expired - Lifetime
- 2002-06-28 KR KR1020047000033A patent/KR100664896B1/ko active IP Right Grant
- 2002-06-28 EP EP02744685.5A patent/EP1405427B1/en not_active Expired - Lifetime
- 2002-06-28 CN CNB02813477XA patent/CN100358248C/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103346740A (zh) * | 2013-07-29 | 2013-10-09 | 中国科学院微电子研究所 | 用于抑制噪声的d类音频功率放大器及其音频信号处理方法 |
CN103346740B (zh) * | 2013-07-29 | 2016-03-09 | 中国科学院微电子研究所 | 用于抑制噪声的d类音频功率放大器及其音频信号处理方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1405427A1 (en) | 2004-04-07 |
KR20040010834A (ko) | 2004-01-31 |
CA2450378A1 (en) | 2003-01-16 |
CN100358248C (zh) | 2007-12-26 |
EP1405427B1 (en) | 2018-12-26 |
EP1405427A4 (en) | 2006-01-25 |
KR100664896B1 (ko) | 2007-01-09 |
CA2450378C (en) | 2008-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: INTEL CORP . Free format text: FORMER OWNER: POWERWAVE TECHNOLOGIES INC. Effective date: 20150511 Owner name: POWERWAVE TECHNOLOGIES INC. Free format text: FORMER OWNER: P-WAVE HOLDING LLC Effective date: 20150511 Owner name: P-WAVE HOLDING LLC Free format text: FORMER OWNER: POWERWAVE TCH INC. Effective date: 20150511 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150511 Address after: Luxemburg Luxemburg Patentee after: POWERWAVE TECHNOLOGIES, Inc. Address before: California, USA Patentee before: P-wave holding LLC Effective date of registration: 20150511 Address after: California, USA Patentee after: P-wave holding LLC Address before: California Patentee before: POWERWAVE TECHNOLOGIES, Inc. Effective date of registration: 20150511 Address after: California, USA Patentee after: INTEL Corp. Address before: Luxemburg Luxemburg Patentee before: POWERWAVE TECHNOLOGIES, Inc. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20071226 |