AR022696A1 - Un metodo y un equipo para la limitacion de senales en un sistema cdma - Google Patents
Un metodo y un equipo para la limitacion de senales en un sistema cdmaInfo
- Publication number
- AR022696A1 AR022696A1 ARP000100397A ARP000100397A AR022696A1 AR 022696 A1 AR022696 A1 AR 022696A1 AR P000100397 A ARP000100397 A AR P000100397A AR P000100397 A ARP000100397 A AR P000100397A AR 022696 A1 AR022696 A1 AR 022696A1
- Authority
- AR
- Argentina
- Prior art keywords
- limitation
- carriers
- carrier
- circuit
- cdma
- Prior art date
Links
Classifications
-
- 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
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
- H04L5/026—Multiplexing of multicarrier modulation signals using code division
-
- 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)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
- Amplifiers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
En un método y en un equipo para la limitacion de portadoras CDMA,la limitacion de cada portadora CDMA se lleva a cabo en placas de circuito separadas y elcircuito de limitacion tiene acceso a la informacion correspondiente a todas las portadoras a ser amplificadas por el mismo amplificador. Así, ya que cada portadora se limita separadamente de todas las otras portadoras alimentadas al mismo amplificador, pero con conocimiento de las otras portadoras, una falla de laplaca de circuito que incluyeel circuito de limitacion y/o la logica de evaluacion de limitacion,afectará solamente a esa portadora en particular, pudiéndoseaun así transmitir las otras portadoras. Además, ya que la limitacion se lleva a cabo para cada portadora por separado, pero tomando en cuenta la informacioncorrespondiente a las otras portadoras a ser amplificadas y por el mismo amplificador de potencia, la limitacion puede tomar en cuenta informacion de fasecuando se determina el factor de limitacion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9900297A SE513863C2 (sv) | 1999-01-29 | 1999-01-29 | Förfarande och anordning för klippning i ett CDMA-system |
Publications (1)
Publication Number | Publication Date |
---|---|
AR022696A1 true AR022696A1 (es) | 2002-09-04 |
Family
ID=20414287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP000100397A AR022696A1 (es) | 1999-01-29 | 2000-01-28 | Un metodo y un equipo para la limitacion de senales en un sistema cdma |
Country Status (13)
Country | Link |
---|---|
US (1) | US6765899B1 (es) |
EP (1) | EP1147633B1 (es) |
JP (1) | JP4475821B2 (es) |
KR (1) | KR20010105335A (es) |
CN (1) | CN1183705C (es) |
AR (1) | AR022696A1 (es) |
AT (1) | ATE390770T1 (es) |
AU (1) | AU2704600A (es) |
CA (1) | CA2361036A1 (es) |
DE (1) | DE60038437T2 (es) |
SE (1) | SE513863C2 (es) |
TW (1) | TW463480B (es) |
WO (1) | WO2000045538A1 (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2001278971A1 (en) * | 2000-07-21 | 2002-02-05 | Pmc-Sierra, Ltd. | Systems and methods for reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms |
JP3483838B2 (ja) * | 2000-08-31 | 2004-01-06 | 松下電器産業株式会社 | マルチキャリア伝送装置 |
FI20011238A0 (fi) | 2001-06-12 | 2001-06-12 | Nokia Corp | Menetelmä signaalin rajoittamiseksi ja lähetin |
US7158765B2 (en) * | 2001-07-31 | 2007-01-02 | Agere Systems, Inc. | Method and apparatus for controlling power of a transmitted signal |
DE10151173B4 (de) * | 2001-10-17 | 2012-07-12 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zum Messen des Modulationsfehlers von digital modulierten Hochfrequenzsignalen |
FR2832275B1 (fr) * | 2001-11-12 | 2004-11-19 | Evolium Sas | Procede d'ecretage de signaux a plusieurs porteuses transmis par un meme amplificateur non-lineaire |
JP2003174370A (ja) * | 2001-12-05 | 2003-06-20 | Nec Corp | 非線形補償回路と基地局装置および送信電力クリップ方法 |
EP1659703A1 (en) * | 2004-11-17 | 2006-05-24 | Alcatel | Method and means for decreasing the peak to average power ratio in mobile phones |
US9215120B2 (en) * | 2011-12-21 | 2015-12-15 | Telefonaktiebolaget L M Ericsson (Publ) | Multi-band crest factor reduction |
US9331882B2 (en) * | 2013-06-05 | 2016-05-03 | Telefonaktiebolaget L M Ericsson (Publ) | Crest factor reduction of carrier aggregated signals |
CN103472810B (zh) * | 2013-09-29 | 2016-02-10 | 贵州电力试验研究院 | 一种多执行回路控制系统的限幅方法 |
EP3363171B1 (en) * | 2015-10-15 | 2020-06-03 | Telefonaktiebolaget LM Ericsson (PUBL) | Method and peak reduction unit for limiting a peak or group of peaks of an aggregated baseband carrier signal in a radio transmitter. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5742595A (en) | 1995-06-02 | 1998-04-21 | Dsc Communications Corporation | Processing CDMA signals |
US5621762A (en) | 1995-06-12 | 1997-04-15 | Motorola, Inc. | Radio with peak power and bandwidth efficient modulation |
US5535191A (en) * | 1995-06-28 | 1996-07-09 | Seiko Communications Systems, Inc. | Method and apparatus for switching between redundant hardware in a wireless data communication system |
GB2313525B (en) | 1996-05-24 | 2000-06-07 | Motorola Ltd | Filter for multicarrier communication system and method for peak power control therein |
US5926500A (en) * | 1996-05-28 | 1999-07-20 | Qualcomm Incorporated | Reduced peak-to-average transmit power high data rate CDMA wireless communication system |
US6266320B1 (en) * | 1998-04-08 | 2001-07-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Amplitude limitation in CDMA system |
US6236864B1 (en) * | 1998-11-27 | 2001-05-22 | Nortel Networks Limited | CDMA transmit peak power reduction |
-
1999
- 1999-01-29 SE SE9900297A patent/SE513863C2/sv unknown
-
2000
- 2000-01-20 TW TW089100878A patent/TW463480B/zh not_active IP Right Cessation
- 2000-01-24 US US09/489,673 patent/US6765899B1/en not_active Expired - Lifetime
- 2000-01-25 EP EP00905510A patent/EP1147633B1/en not_active Expired - Lifetime
- 2000-01-25 DE DE60038437T patent/DE60038437T2/de not_active Expired - Lifetime
- 2000-01-25 WO PCT/SE2000/000146 patent/WO2000045538A1/en not_active Application Discontinuation
- 2000-01-25 AT AT00905510T patent/ATE390770T1/de not_active IP Right Cessation
- 2000-01-25 CA CA002361036A patent/CA2361036A1/en not_active Abandoned
- 2000-01-25 JP JP2000596685A patent/JP4475821B2/ja not_active Expired - Fee Related
- 2000-01-25 KR KR1020017009489A patent/KR20010105335A/ko not_active Application Discontinuation
- 2000-01-25 CN CNB00803267XA patent/CN1183705C/zh not_active Expired - Fee Related
- 2000-01-25 AU AU27046/00A patent/AU2704600A/en not_active Abandoned
- 2000-01-28 AR ARP000100397A patent/AR022696A1/es not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE390770T1 (de) | 2008-04-15 |
JP4475821B2 (ja) | 2010-06-09 |
EP1147633A1 (en) | 2001-10-24 |
US6765899B1 (en) | 2004-07-20 |
KR20010105335A (ko) | 2001-11-28 |
EP1147633B1 (en) | 2008-03-26 |
DE60038437D1 (de) | 2008-05-08 |
SE9900297D0 (sv) | 1999-01-29 |
JP2002536872A (ja) | 2002-10-29 |
TW463480B (en) | 2001-11-11 |
CA2361036A1 (en) | 2000-08-03 |
SE9900297L (sv) | 2000-07-30 |
AU2704600A (en) | 2000-08-18 |
CN1339204A (zh) | 2002-03-06 |
DE60038437T2 (de) | 2009-04-23 |
CN1183705C (zh) | 2005-01-05 |
WO2000045538A1 (en) | 2000-08-03 |
SE513863C2 (sv) | 2000-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA | Abandonment or withdrawal |