WO2008149323A3 - Multi-code precoding for othogonal multicarrier modulation - Google Patents
Multi-code precoding for othogonal multicarrier modulation Download PDFInfo
- Publication number
- WO2008149323A3 WO2008149323A3 PCT/IB2008/052245 IB2008052245W WO2008149323A3 WO 2008149323 A3 WO2008149323 A3 WO 2008149323A3 IB 2008052245 W IB2008052245 W IB 2008052245W WO 2008149323 A3 WO2008149323 A3 WO 2008149323A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- othogonal
- precoding
- multicarrier modulation
- symbols
- code
- Prior art date
Links
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
- H04L27/2615—Reduction thereof using coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
-
- 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
- H04L27/2626—Arrangements specific to the transmitter only
-
- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
In accordance with an exemplary embodiment of the invention a method is provided to reduce a peak to average ratio with a multi-code transmission. The method includes precoding a plurality of symbols (24), modulating the precoded plurality of symbols using multi-codes including a plurality of orthogonal codes (26), and transmitting a signal comprising the modulated precoded plurality of symbols, where precoding is performed to reduce the peak to average ratio of the transmitted signal.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880101884A CN101772930A (en) | 2007-06-08 | 2008-06-06 | Multi-code precoding for sequence modulation |
EP08763241A EP2165495A2 (en) | 2007-06-08 | 2008-06-06 | Multi-code precoding for sequence modulation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US93376007P | 2007-06-08 | 2007-06-08 | |
US60/933,760 | 2007-06-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008149323A2 WO2008149323A2 (en) | 2008-12-11 |
WO2008149323A3 true WO2008149323A3 (en) | 2009-01-29 |
Family
ID=39931290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2008/052245 WO2008149323A2 (en) | 2007-06-08 | 2008-06-06 | Multi-code precoding for othogonal multicarrier modulation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2165495A2 (en) |
CN (1) | CN101772930A (en) |
WO (1) | WO2008149323A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR112012021419A2 (en) * | 2010-02-26 | 2019-09-24 | Ericsson Telefon Ab L M | method and arrangement for jointly reducing the peak to average power ratio and the type of signal modulation for precoded enhanced general packet radio service (egprs). |
CN112688726B (en) * | 2016-03-15 | 2022-04-29 | 华为技术有限公司 | Polarized spectrum pre-coded transmission |
JP7061564B2 (en) * | 2016-06-30 | 2022-04-28 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Transmitter and transmission method |
US11489608B2 (en) | 2017-03-03 | 2022-11-01 | Apple Inc. | Transmission of synchronization signals |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060227888A1 (en) * | 2005-04-06 | 2006-10-12 | Samsung Electronics Co., Ltd. | Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network |
-
2008
- 2008-06-06 CN CN200880101884A patent/CN101772930A/en active Pending
- 2008-06-06 WO PCT/IB2008/052245 patent/WO2008149323A2/en active Application Filing
- 2008-06-06 EP EP08763241A patent/EP2165495A2/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060227888A1 (en) * | 2005-04-06 | 2006-10-12 | Samsung Electronics Co., Ltd. | Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network |
Non-Patent Citations (2)
Title |
---|
CAO Y W ET AL: "Performance of a new multi-carrier DS-CDMA system with multi-code over Nakagami fading channel", PROCEEDINGS OF IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - 28 APRIL-2 MAY 2002 - NEW YORK, NY, USA, IEEE, PISCATAWAY, NJ, USA, vol. 3, 28 April 2002 (2002-04-28), pages 1773 - 1777, XP010589791, ISBN: 978-0-7803-7400-3 * |
MOTOHIRO TANNO ET AL: "Evolved UTRA - physical layer overview", SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, 2007. SPAWC 200 7. IEEE 8TH WORKSHOP ON, IEEE, PI, 1 June 2007 (2007-06-01), pages 1 - 8, XP031189507, ISBN: 978-1-4244-0954-9 * |
Also Published As
Publication number | Publication date |
---|---|
CN101772930A (en) | 2010-07-07 |
EP2165495A2 (en) | 2010-03-24 |
WO2008149323A2 (en) | 2008-12-11 |
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