BR0013532B1 - Processo de redução da razão de energia de pico para média em um sinal de freqüência de rádio, e, transmissor de preqüência de rádio fornecendo uma razão reduzida de energia de pico para energia média em um sinal de freqüência de rádio - Google Patents
Processo de redução da razão de energia de pico para média em um sinal de freqüência de rádio, e, transmissor de preqüência de rádio fornecendo uma razão reduzida de energia de pico para energia média em um sinal de freqüência de rádio Download PDFInfo
- Publication number
- BR0013532B1 BR0013532B1 BRPI0013532-1A BR0013532A BR0013532B1 BR 0013532 B1 BR0013532 B1 BR 0013532B1 BR 0013532 A BR0013532 A BR 0013532A BR 0013532 B1 BR0013532 B1 BR 0013532B1
- Authority
- BR
- Brazil
- Prior art keywords
- modulated signal
- produce
- signal
- magnitude
- data symbol
- Prior art date
Links
- 238000011946 reduction process Methods 0.000 title description 5
- 239000013598 vector Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 38
- 239000000969 carrier Substances 0.000 claims description 19
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 description 26
- 238000004088 simulation Methods 0.000 description 8
- 108091006146 Channels Proteins 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- H04L27/2623—Reduction thereof by clipping
- H04L27/2624—Reduction thereof by clipping by soft clipping
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/379,780 US6128350A (en) | 1999-08-24 | 1999-08-24 | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
| US09/379780 | 1999-08-24 | ||
| PCT/US2000/023184 WO2001015402A1 (en) | 1999-08-24 | 2000-08-23 | Method and apparatus for reducing peak to average power ratio in digital broadcasting systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR0013532A BR0013532A (pt) | 2002-04-30 |
| BR0013532B1 true BR0013532B1 (pt) | 2014-09-02 |
Family
ID=23498656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0013532-1A BR0013532B1 (pt) | 1999-08-24 | 2000-08-23 | Processo de redução da razão de energia de pico para média em um sinal de freqüência de rádio, e, transmissor de preqüência de rádio fornecendo uma razão reduzida de energia de pico para energia média em um sinal de freqüência de rádio |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6128350A (https=) |
| EP (1) | EP1206866B1 (https=) |
| JP (1) | JP4574095B2 (https=) |
| KR (1) | KR100623830B1 (https=) |
| CN (1) | CN1205793C (https=) |
| AR (1) | AR027843A1 (https=) |
| AT (1) | ATE308187T1 (https=) |
| AU (1) | AU765568B2 (https=) |
| BR (1) | BR0013532B1 (https=) |
| CA (1) | CA2385125C (https=) |
| DE (1) | DE60023513T2 (https=) |
| MX (1) | MXPA02001364A (https=) |
| RU (1) | RU2234199C2 (https=) |
| TW (1) | TW519804B (https=) |
| WO (1) | WO2001015402A1 (https=) |
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-
2000
- 2000-08-23 DE DE60023513T patent/DE60023513T2/de not_active Expired - Lifetime
- 2000-08-23 RU RU2002107308/09A patent/RU2234199C2/ru active
- 2000-08-23 WO PCT/US2000/023184 patent/WO2001015402A1/en not_active Ceased
- 2000-08-23 CA CA002385125A patent/CA2385125C/en not_active Expired - Fee Related
- 2000-08-23 JP JP2001519004A patent/JP4574095B2/ja not_active Expired - Lifetime
- 2000-08-23 AT AT00957735T patent/ATE308187T1/de not_active IP Right Cessation
- 2000-08-23 EP EP00957735A patent/EP1206866B1/en not_active Expired - Lifetime
- 2000-08-23 AU AU69310/00A patent/AU765568B2/en not_active Ceased
- 2000-08-23 BR BRPI0013532-1A patent/BR0013532B1/pt not_active IP Right Cessation
- 2000-08-23 MX MXPA02001364A patent/MXPA02001364A/es active IP Right Grant
- 2000-08-23 KR KR1020027002373A patent/KR100623830B1/ko not_active Expired - Lifetime
- 2000-08-23 CN CNB00811918XA patent/CN1205793C/zh not_active Expired - Lifetime
- 2000-08-24 AR ARP000104390A patent/AR027843A1/es active IP Right Grant
- 2000-10-17 TW TW089117082A patent/TW519804B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003507968A (ja) | 2003-02-25 |
| CN1370365A (zh) | 2002-09-18 |
| AU6931000A (en) | 2001-03-19 |
| AU765568B2 (en) | 2003-09-25 |
| WO2001015402A1 (en) | 2001-03-01 |
| EP1206866A1 (en) | 2002-05-22 |
| DE60023513T2 (de) | 2006-07-20 |
| EP1206866B1 (en) | 2005-10-26 |
| US6128350A (en) | 2000-10-03 |
| TW519804B (en) | 2003-02-01 |
| CA2385125C (en) | 2008-06-03 |
| JP4574095B2 (ja) | 2010-11-04 |
| CN1205793C (zh) | 2005-06-08 |
| CA2385125A1 (en) | 2001-03-01 |
| RU2234199C2 (ru) | 2004-08-10 |
| ATE308187T1 (de) | 2005-11-15 |
| KR20020036846A (ko) | 2002-05-16 |
| AR027843A1 (es) | 2003-04-16 |
| KR100623830B1 (ko) | 2006-09-18 |
| DE60023513D1 (de) | 2005-12-01 |
| BR0013532A (pt) | 2002-04-30 |
| MXPA02001364A (es) | 2002-07-30 |
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