MX367848B - Aparato y método de generación de tabla de búsqueda, y aparato y método de pre-compensación. - Google Patents
Aparato y método de generación de tabla de búsqueda, y aparato y método de pre-compensación.Info
- Publication number
- MX367848B MX367848B MX2017011782A MX2017011782A MX367848B MX 367848 B MX367848 B MX 367848B MX 2017011782 A MX2017011782 A MX 2017011782A MX 2017011782 A MX2017011782 A MX 2017011782A MX 367848 B MX367848 B MX 367848B
- Authority
- MX
- Mexico
- Prior art keywords
- symbol
- symbol sequence
- sub
- sequence
- lut
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/58—Compensation for non-linear transmitter output
-
- 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
- H04B1/62—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 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
- H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
- H04B2210/254—Distortion or dispersion compensation before the transmission line, i.e. pre-compensation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Amplifiers (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Modalidades de la presente invención proporcionan un aparato y método de generación de tabla de búsqueda y un aparato y método de pre-compensación, para resolver un problema actual que los recursos de una LUT incrementan de forma exponencial con un incremento en la longitud de una secuencia de símbolos de la LUT. El método incluye: dividir una primera secuencia de símbolos en dos secuencias de sub-símbolos, donde los símbolos que son del primer símbolo a un símbolo central en la primera secuencia de símbolos forman una secuencia de sub-símbolos, y los símbolos que son del símbolo central al último símbolo en la primera secuencia de símbolos forman la otra secuencia de sub-símbolos; llevar a cabo promedio estadístico en cada secuencia de sub-símbolos, y calcular un valor de desviación no lineal de la secuencia de sub-símbolos de acuerdo con un resultado del promedio estadístico; almacenar por consecuencia una secuencia de sub-símbolos en la cual el símbolo central es el último símbolo y un valor de desviación no lineal de la secuencia de sub-símbolos para formar una primera tabla de búsqueda en una tabla de búsqueda en cascada; y almacenar por consecuencia una secuencia de sub-símbolos en la cual el símbolo central es el primer símbolo y un valor de desviación no lineal de la secuencia de sub-símbolos para formar una segunda tabla de búsqueda en la tabla de búsqueda en cascada.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/075687 WO2016154964A1 (zh) | 2015-04-01 | 2015-04-01 | 一种查找表的生成方法和装置、预补偿方法和装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2017011782A MX2017011782A (es) | 2017-12-04 |
| MX367848B true MX367848B (es) | 2019-09-09 |
Family
ID=57006517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2017011782A MX367848B (es) | 2015-04-01 | 2015-04-01 | Aparato y método de generación de tabla de búsqueda, y aparato y método de pre-compensación. |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3249819B1 (es) |
| JP (1) | JP6455765B2 (es) |
| CN (1) | CN106464274B (es) |
| MX (1) | MX367848B (es) |
| WO (1) | WO2016154964A1 (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545079B (zh) * | 2018-05-29 | 2021-04-16 | 大唐移动通信设备有限公司 | 一种dpd查找表生成方法及装置 |
| JP7193715B2 (ja) * | 2018-11-08 | 2022-12-21 | 日本電信電話株式会社 | 光伝送システム |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004032609A (ja) * | 2002-06-28 | 2004-01-29 | Nec Corp | 非線形歪み補償回路 |
| US7756421B2 (en) * | 2002-10-03 | 2010-07-13 | Ciena Corporation | Electrical domain compensation of non-linear effects in an optical communications system |
| US7340005B2 (en) * | 2003-06-12 | 2008-03-04 | Lg Electronics Inc. | Signal transmission apparatus and method |
| US7564923B2 (en) * | 2005-10-27 | 2009-07-21 | Cypress Semiconductor Corporation | Frequency offset and method of offsetting |
| CN101123594B (zh) * | 2006-08-08 | 2012-07-25 | 上海贝尔阿尔卡特股份有限公司 | 用于多入多出基带处理的系统、装置及方法 |
| JP4933940B2 (ja) * | 2007-04-02 | 2012-05-16 | 株式会社日立国際電気 | 電力増幅装置 |
| JP4935906B2 (ja) * | 2007-07-31 | 2012-05-23 | 富士通株式会社 | 歪補償装置および方法 |
| US8654439B2 (en) * | 2010-08-20 | 2014-02-18 | Nec Laboratories America, Inc. | Look-up table and digital transmitter based architecture for fiber nonlinearity compensation |
| US20130185345A1 (en) * | 2012-01-16 | 2013-07-18 | Designart Networks Ltd | Algebraic processor |
| US9838226B2 (en) * | 2012-01-27 | 2017-12-05 | Apple Inc. | Methods and apparatus for the intelligent scrambling of control symbols |
-
2015
- 2015-04-01 EP EP15886934.7A patent/EP3249819B1/en active Active
- 2015-04-01 MX MX2017011782A patent/MX367848B/es active IP Right Grant
- 2015-04-01 JP JP2017550207A patent/JP6455765B2/ja active Active
- 2015-04-01 WO PCT/CN2015/075687 patent/WO2016154964A1/zh active Application Filing
- 2015-04-01 CN CN201580023454.3A patent/CN106464274B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| MX2017011782A (es) | 2017-12-04 |
| EP3249819A4 (en) | 2018-03-14 |
| EP3249819A1 (en) | 2017-11-29 |
| JP2018509860A (ja) | 2018-04-05 |
| EP3249819B1 (en) | 2019-06-19 |
| WO2016154964A1 (zh) | 2016-10-06 |
| CN106464274B (zh) | 2019-02-19 |
| CN106464274A (zh) | 2017-02-22 |
| JP6455765B2 (ja) | 2019-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration |