CN1600008A - Ofdm***中的功率放大器瞬变补偿 - Google Patents
Ofdm***中的功率放大器瞬变补偿 Download PDFInfo
- Publication number
- CN1600008A CN1600008A CN02823942.3A CN02823942A CN1600008A CN 1600008 A CN1600008 A CN 1600008A CN 02823942 A CN02823942 A CN 02823942A CN 1600008 A CN1600008 A CN 1600008A
- Authority
- CN
- China
- Prior art keywords
- gain
- hit
- power amplifier
- ofdm
- transition
- 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
Links
- 230000001052 transient effect Effects 0.000 title abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 40
- 230000007704 transition Effects 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 9
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 abstract description 7
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000013598 vector Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000008521 reorganization Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/005—Control by a pilot signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- 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
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- 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
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
发射信号 | 误差向量幅度 |
16 OFDM码元无瞬变128 OFDM码元无瞬变16 OFDM码元有瞬变128 OFDM码元有瞬变 | 30.5dB30.0dB29.1dB24.2dB |
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01403082.9 | 2001-11-30 | ||
EP01403082A EP1317107B1 (en) | 2001-11-30 | 2001-11-30 | Power amplifier transient compensation in OFDM systems |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1600008A true CN1600008A (zh) | 2005-03-23 |
CN100496034C CN100496034C (zh) | 2009-06-03 |
Family
ID=8182994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028239423A Expired - Lifetime CN100496034C (zh) | 2001-11-30 | 2002-11-21 | Ofdm***中的功率放大器瞬变补偿 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7706758B2 (zh) |
EP (1) | EP1317107B1 (zh) |
JP (1) | JP4260019B2 (zh) |
KR (1) | KR100922705B1 (zh) |
CN (1) | CN100496034C (zh) |
AT (1) | ATE301361T1 (zh) |
AU (1) | AU2002338948A1 (zh) |
DE (1) | DE60112451T2 (zh) |
WO (1) | WO2003047195A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101114854B (zh) * | 2006-07-28 | 2011-05-18 | 北京信威通信技术股份有限公司 | 用于时分双工***的功率放大器的线性化控制装置和方法 |
CN104469925A (zh) * | 2014-11-28 | 2015-03-25 | 深圳市海思半导体有限公司 | 一种频域自动增益控制方法和装置 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100555520B1 (ko) | 2003-10-28 | 2006-03-03 | 삼성전자주식회사 | 다중 캐리어 신호의 비선형적 왜곡을 보상하는 다중캐리어 신호 왜곡 보상 장치, 이를 구비한 다중 캐리어신호 수신기, 및 그 방법 |
US8428001B2 (en) | 2005-03-10 | 2013-04-23 | Qualcomm Incorporated | Timing corrections in a multi carrier system and propagation to a channel estimation time filter |
KR100721248B1 (ko) * | 2006-01-31 | 2007-05-23 | 에스케이 텔레콤주식회사 | 직교 주파수 분할 다중 접속방식 통신 시스템의 대전력증폭기 제어 시스템 |
BRPI0808484A2 (pt) * | 2007-03-05 | 2014-07-08 | Qualcomm Inc | Equipamentos e métodos para compensar efeitos de descontinuidades na saída de controle automático de ganho em um sistema de multi-portadora |
US8223899B2 (en) * | 2007-03-23 | 2012-07-17 | Qualcomm Incorporated | Methods and apparatus for initial acquisition gain control in a communication system |
US20130272168A1 (en) * | 2012-04-13 | 2013-10-17 | Qualcomm Incorporated | Reducing transient effects when changing transmit chain power |
CN112703671A (zh) * | 2018-06-19 | 2021-04-23 | 诺基亚技术有限公司 | 增益瞬态响应补偿 |
US11968142B2 (en) * | 2021-08-18 | 2024-04-23 | Qualcomm Incorporated | Techniques for reference signal bundling in sidelink channels |
CN114375029B (zh) * | 2021-12-27 | 2023-06-27 | 天翼物联科技有限公司 | NB-IoT水表功率控制优化方法、***、装置及存储介质 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9510127D0 (en) * | 1995-05-20 | 1995-08-02 | West End System Corp | CATV Data transmission system |
US5764706A (en) * | 1995-08-31 | 1998-06-09 | Usa Digital Radio Partners, L.P. | AM compatible digital waveform frame timing recovery and frame synchronous power measurement |
US5732333A (en) * | 1996-02-14 | 1998-03-24 | Glenayre Electronics, Inc. | Linear transmitter using predistortion |
US5796784A (en) * | 1996-03-27 | 1998-08-18 | Motorola, Inc. | Method and apparatus for modifying amplitude of at least one symbol |
JPH09321676A (ja) * | 1996-05-29 | 1997-12-12 | Nec Corp | 非再生局用マルチキャリア自動利得制御方式 |
US5949796A (en) * | 1996-06-19 | 1999-09-07 | Kumar; Derek D. | In-band on-channel digital broadcasting method and system |
US5878089A (en) * | 1997-02-21 | 1999-03-02 | Usa Digital Radio Partners, L.P. | Coherent signal detector for AM-compatible digital audio broadcast waveform recovery |
US6975694B1 (en) * | 1999-12-15 | 2005-12-13 | Paradyne Corporation | Digital subscriber line driver |
AU2000231602A1 (en) * | 2000-02-24 | 2001-09-03 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | System for estimating a non-linear characteristic of an amplifier |
JP4178712B2 (ja) * | 2000-04-04 | 2008-11-12 | 株式会社デンソー | 利得調整装置 |
AU2001259310A1 (en) * | 2000-05-02 | 2001-11-12 | Phonex Broadband Corporation | Method and system for adapting a telephone line modem for use on the power line |
JP3297739B2 (ja) * | 2000-06-14 | 2002-07-02 | 佐賀大学長 | 制御装置 |
US20020164968A1 (en) * | 2001-03-06 | 2002-11-07 | Magis Networks, Inc. | Probing scheme for diversity antenna branch selection |
DE60131104T2 (de) * | 2001-03-14 | 2008-02-07 | Nokia Corp. | Verfahren und funkübertragungseinheit zur leistungsdetektion eines vielfachträgersignals |
US20020159532A1 (en) * | 2001-03-23 | 2002-10-31 | Icefyre Semiconductor Corporation | Computational circuits and methods for signal deconstruction/reconstruction in wireless transceivers |
US7307569B2 (en) * | 2001-03-29 | 2007-12-11 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
US7190748B2 (en) * | 2001-08-17 | 2007-03-13 | Dsp Group Inc. | Digital front-end for wireless communication system |
-
2001
- 2001-11-30 DE DE60112451T patent/DE60112451T2/de not_active Expired - Fee Related
- 2001-11-30 AT AT01403082T patent/ATE301361T1/de not_active IP Right Cessation
- 2001-11-30 EP EP01403082A patent/EP1317107B1/en not_active Expired - Lifetime
-
2002
- 2002-11-21 US US10/497,426 patent/US7706758B2/en not_active Expired - Fee Related
- 2002-11-21 WO PCT/EP2002/013060 patent/WO2003047195A1/en active Application Filing
- 2002-11-21 CN CNB028239423A patent/CN100496034C/zh not_active Expired - Lifetime
- 2002-11-21 AU AU2002338948A patent/AU2002338948A1/en not_active Abandoned
- 2002-11-21 JP JP2003548486A patent/JP4260019B2/ja not_active Expired - Fee Related
- 2002-11-21 KR KR1020047008347A patent/KR100922705B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101114854B (zh) * | 2006-07-28 | 2011-05-18 | 北京信威通信技术股份有限公司 | 用于时分双工***的功率放大器的线性化控制装置和方法 |
CN104469925A (zh) * | 2014-11-28 | 2015-03-25 | 深圳市海思半导体有限公司 | 一种频域自动增益控制方法和装置 |
CN104469925B (zh) * | 2014-11-28 | 2017-12-22 | 深圳市海思半导体有限公司 | 一种频域自动增益控制方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
CN100496034C (zh) | 2009-06-03 |
US7706758B2 (en) | 2010-04-27 |
WO2003047195A1 (en) | 2003-06-05 |
DE60112451D1 (de) | 2005-09-08 |
JP2005510963A (ja) | 2005-04-21 |
EP1317107A1 (en) | 2003-06-04 |
ATE301361T1 (de) | 2005-08-15 |
KR20040061016A (ko) | 2004-07-06 |
US20050105656A1 (en) | 2005-05-19 |
JP4260019B2 (ja) | 2009-04-30 |
AU2002338948A1 (en) | 2003-06-10 |
EP1317107B1 (en) | 2005-08-03 |
KR100922705B1 (ko) | 2009-10-22 |
DE60112451T2 (de) | 2006-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8189456B2 (en) | Apparatus for and method of minimizing backoff for orthogonal frequency division multiplexing transmission | |
JP5657755B2 (ja) | 異なる送信プロトコルを使用するシステムにおける通信方法及び装置 | |
CN100338896C (zh) | 具有多个发射天线的ofdm发射机及其方法 | |
CN1222130C (zh) | Ofdm通信装置及检波方法 | |
JP5313331B2 (ja) | 複数ステージによるフーリエ変換装置、処理、および製造物品 | |
US20070280365A1 (en) | Transmitter and transmission method | |
CN101112031A (zh) | 用于正交频分复用***的预失真器和其操作方法 | |
US7609609B2 (en) | Apparatus and method for processing digital signal in an OFDMA wireless communication system | |
CN102113210A (zh) | 针对无线通信的联合时频自动增益控制 | |
CN1411179A (zh) | Ofdm发送和接收设备 | |
CN1600008A (zh) | Ofdm***中的功率放大器瞬变补偿 | |
CN1534910A (zh) | 正交频分复用无线通信***与信道补偿方法 | |
JP5678161B2 (ja) | 高速フーリエ変換のためのタスク・リストを備えた再使用エンジンおよびそれを用いる方法 | |
CN1649333A (zh) | 选频单载波分块传输***中的比特加载方法 | |
US8331468B2 (en) | Apparatus and method for inserting a cyclic postfix for a time-rotated symbol in a communication system | |
EP3226502B1 (en) | Signal processing circuits | |
CN1849791A (zh) | 用于多载波无线通信***的自适应iq不平衡校正 | |
CN101043235A (zh) | 一种导频信号发射功率控制方法 | |
CN1949754A (zh) | 基于虚拟子载波和频域差分序列的估计ofdm整数频偏的方法 | |
CN101057443A (zh) | 用于确定残余频率偏移的方法、通信***、用于发射消息的方法、发射机、用于处理消息的方法以及接收机 | |
CN1708142A (zh) | 一种在正交多路频分复用***中实现信道估计的方法 | |
CN1617530A (zh) | 一种选频方式的单载波分块传输方法 | |
US20060215537A1 (en) | Apparatus and method for estimating a clipping parameter of an ofdm system | |
US20070165730A1 (en) | Transmitter cellular communication system and method of transmitting therefor | |
CN1805316A (zh) | 一种选频分块传输***的上行链路频分多址接入方法 |
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: TIANDING INVESTMENT CO., LTD. Free format text: FORMER OWNER: FISICAL SEMICONDUCTOR INC. Effective date: 20150623 Owner name: APPLE COMPUTER, INC. Free format text: FORMER OWNER: TIANDING INVESTMENT CO., LTD. Effective date: 20150623 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150623 Address after: American California Patentee after: APPLE Inc. Address before: American California Patentee before: Zenith investment LLC Effective date of registration: 20150623 Address after: American California Patentee after: Zenith investment LLC Address before: Texas, USA Patentee before: FREESCALE SEMICONDUCTOR, Inc. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20090603 |