EP1532759A1 - Extracting the phase of an ofdm signal sample - Google Patents
Extracting the phase of an ofdm signal sampleInfo
- Publication number
- EP1532759A1 EP1532759A1 EP02756842A EP02756842A EP1532759A1 EP 1532759 A1 EP1532759 A1 EP 1532759A1 EP 02756842 A EP02756842 A EP 02756842A EP 02756842 A EP02756842 A EP 02756842A EP 1532759 A1 EP1532759 A1 EP 1532759A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- complex number
- circuitry
- phase
- complex
- squared
- 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.)
- Withdrawn
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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2681—Details of algorithms characterised by constraints
- H04L27/2684—Complexity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0067—Phase error detectors
Definitions
- the output of the multiplier 68 equates to the normalized value of the square of the complex number, which may be expressed as e 2j*phl .
- the second step in determining the phase angle of the complex number comprises sending the output of the multiplier 68 through a closed loop.
- the second order carrier tracking loop which is typically implemented in an OFDM receiver (i.e. does not have to be specifically added), is useful for this purpose.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/024263 WO2004014005A1 (en) | 2002-07-31 | 2002-07-31 | Extracting the phase of an ofdm signal sample |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1532759A1 true EP1532759A1 (en) | 2005-05-25 |
EP1532759A4 EP1532759A4 (en) | 2010-07-14 |
Family
ID=31493891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02756842A Withdrawn EP1532759A4 (en) | 2002-07-31 | 2002-07-31 | Extracting the phase of an ofdm signal sample |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1532759A4 (en) |
JP (1) | JP2005535224A (en) |
CN (1) | CN1669256A (en) |
AU (1) | AU2002322823A1 (en) |
WO (1) | WO2004014005A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5287067A (en) * | 1991-10-07 | 1994-02-15 | Nippon Telegraph And Telephone Corporation | Method and apparatus for demodulation with adaptive phase control in quasi-coherent detection |
GB2313270A (en) * | 1996-05-17 | 1997-11-19 | Mitsubishi Electric Corp | Digital Broadcasting Receiver |
WO1998040991A1 (en) * | 1997-03-12 | 1998-09-17 | Interdigital Technology Corporation | Phase-locked loop with continuously adjustable bandwith |
WO1999027671A1 (en) * | 1997-11-25 | 1999-06-03 | Samsung Electronics Co., Ltd. | Orthogonal frequency division multiplexing receiver where fft window position recovery interlocks with sampling clock adjustment and method thereof |
EP0952714A2 (en) * | 1998-04-23 | 1999-10-27 | Mitsubishi Denki Kabushiki Kaisha | Digital audio broadcast receiver and tuning method thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255290A (en) * | 1992-08-21 | 1993-10-19 | Teknekron Communications System, Inc. | Method and apparatus for combined frequency offset and timing offset estimation |
KR0157500B1 (en) * | 1994-03-25 | 1998-11-16 | 김광호 | Automatic frequency controlling system |
-
2002
- 2002-07-31 JP JP2004525924A patent/JP2005535224A/en active Pending
- 2002-07-31 CN CNA028296907A patent/CN1669256A/en active Pending
- 2002-07-31 WO PCT/US2002/024263 patent/WO2004014005A1/en active Application Filing
- 2002-07-31 AU AU2002322823A patent/AU2002322823A1/en not_active Abandoned
- 2002-07-31 EP EP02756842A patent/EP1532759A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5287067A (en) * | 1991-10-07 | 1994-02-15 | Nippon Telegraph And Telephone Corporation | Method and apparatus for demodulation with adaptive phase control in quasi-coherent detection |
GB2313270A (en) * | 1996-05-17 | 1997-11-19 | Mitsubishi Electric Corp | Digital Broadcasting Receiver |
WO1998040991A1 (en) * | 1997-03-12 | 1998-09-17 | Interdigital Technology Corporation | Phase-locked loop with continuously adjustable bandwith |
WO1999027671A1 (en) * | 1997-11-25 | 1999-06-03 | Samsung Electronics Co., Ltd. | Orthogonal frequency division multiplexing receiver where fft window position recovery interlocks with sampling clock adjustment and method thereof |
EP0952714A2 (en) * | 1998-04-23 | 1999-10-27 | Mitsubishi Denki Kabushiki Kaisha | Digital audio broadcast receiver and tuning method thereof |
Non-Patent Citations (1)
Title |
---|
See also references of WO2004014005A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2005535224A (en) | 2005-11-17 |
CN1669256A (en) | 2005-09-14 |
EP1532759A4 (en) | 2010-07-14 |
AU2002322823A1 (en) | 2004-02-23 |
WO2004014005A1 (en) | 2004-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050222 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THOMSON LICENSING |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LITWIN, LOUIS, ROBERT, JR. Inventor name: DEMOULIN, VINCENT Inventor name: BELOTSERKOVSKY, MAXIM, BORISOVICH |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LITWIN, LOUIS, ROBERT, JR. Inventor name: DEMOULIN, VINCENT Inventor name: BELOTSERKOVSKY, MAXIM, BORISOVICH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THOMSON LICENSING |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20100614 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H04L 27/26 20060101ALI20100608BHEP Ipc: H04J 11/00 20060101AFI20040225BHEP |
|
17Q | First examination report despatched |
Effective date: 20101105 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130201 |