AU2002304581A1 - Downlink synchronisation method for a point-to-multipoint system with OFDM modulation - Google Patents
Downlink synchronisation method for a point-to-multipoint system with OFDM modulationInfo
- Publication number
- AU2002304581A1 AU2002304581A1 AU2002304581A AU2002304581A AU2002304581A1 AU 2002304581 A1 AU2002304581 A1 AU 2002304581A1 AU 2002304581 A AU2002304581 A AU 2002304581A AU 2002304581 A AU2002304581 A AU 2002304581A AU 2002304581 A1 AU2002304581 A1 AU 2002304581A1
- Authority
- AU
- Australia
- Prior art keywords
- point
- ofdm modulation
- multipoint system
- synchronisation method
- downlink synchronisation
- 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.)
- Granted
Links
- 230000000051 modifying Effects 0.000 title 1
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200101154A ES2188370B1 (en) | 2001-05-21 | 2001-05-21 | PROCEDURE FOR SYNCHRONIZATION IN THE DESCENDING LINK OF MULTIPLE USERS IN A POINT TO MULTIPOINT TRANSMISSION SYSTEM WITH OFDM MODULATION. |
ESP200101154 | 2001-05-21 | ||
PCT/ES2002/000234 WO2002095976A1 (en) | 2001-05-21 | 2002-05-17 | Downlink synchronisation method for a point-to-multipoint system with ofdm modulation |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2002304581A1 true AU2002304581A1 (en) | 2003-05-08 |
AU2002304581B2 AU2002304581B2 (en) | 2008-01-03 |
Family
ID=8497781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002304581A Ceased AU2002304581B2 (en) | 2001-05-21 | 2002-05-17 | Downlink synchronisation method for a point-to-multipoint system with OFDM modulation |
Country Status (16)
Country | Link |
---|---|
US (1) | US7423959B2 (en) |
EP (1) | EP1389835B1 (en) |
JP (1) | JP4044445B2 (en) |
KR (1) | KR100768835B1 (en) |
CN (1) | CN1528059A (en) |
AT (1) | ATE377870T1 (en) |
AU (1) | AU2002304581B2 (en) |
BR (1) | BR0210055A (en) |
CA (1) | CA2448106A1 (en) |
DE (1) | DE60223356T2 (en) |
EA (1) | EA005669B1 (en) |
ES (2) | ES2188370B1 (en) |
IL (1) | IL158758A0 (en) |
MX (1) | MXPA03010658A (en) |
PT (1) | PT1389835E (en) |
WO (1) | WO2002095976A1 (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2212744B2 (en) * | 2003-01-10 | 2005-03-16 | Diseño De Sistemas En Silicio, S.A. | SYNCHRONIZATION PROCEDURE IN THE DOMAIN OF TIME AND FREQUENCY OF MULTIPLE EQUIPMENT IN A TRANSMISSION SYSTEM WITH OFDM MODULATION. |
ES2221570B2 (en) * | 2003-05-30 | 2005-10-01 | Diseño De Sistemas En Silicio, S.A. | REMEDY PROCEDURE IN TRANSMISSION AND RECEPTION OF A DIGITAL SIGNAL WITH TRANSFER IN DIGITAL BAND. |
US7058378B2 (en) * | 2003-11-18 | 2006-06-06 | Interdigital Technology Corporation | Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs |
JP4290048B2 (en) * | 2004-03-23 | 2009-07-01 | 三洋電機株式会社 | Receiving method and apparatus |
ATE535059T1 (en) * | 2004-05-21 | 2011-12-15 | Nxp Bv | TRANSMITTER AND RECEIVER FOR ULTRA WIDEBAND OFDM SIGNALS USING A LOW COMPLEXITY CDMA LAYER FOR BANDWIDTH EXPANSION |
KR101065687B1 (en) * | 2004-06-10 | 2011-09-19 | 엘지전자 주식회사 | Method of obtaining time synchronization in OFDM mobile communication system |
US7421013B1 (en) * | 2004-08-02 | 2008-09-02 | Marvell International Ltd. | Maximum likelihood estimation of time and frequency offset for OFDM systems |
EP1779570B1 (en) * | 2004-08-17 | 2016-11-09 | LG Electronics Inc. | Method for detecting ofdm symbol timing in ofdm system |
KR100587310B1 (en) * | 2004-08-18 | 2006-06-08 | 엘지전자 주식회사 | Frequency recovery apparatus and DVB-H receiver |
CN100479445C (en) * | 2005-01-28 | 2009-04-15 | 北京大学 | Orthogonal frequency division multiplexing communication method using prefix and suffix signals |
US7778336B1 (en) | 2005-02-09 | 2010-08-17 | Marvell International Ltd. | Timing and frequency synchronization of OFDM signals for changing channel conditions |
JP4440831B2 (en) * | 2005-06-14 | 2010-03-24 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus, transmission method, and communication system |
US8315191B2 (en) * | 2005-09-20 | 2012-11-20 | Qualcomm Incorporated | Timing acquisition and mode and guard detection for an OFDM transmission |
US7894417B2 (en) * | 2005-11-01 | 2011-02-22 | Nokia Corporation | Signal arrangement for multi-bandwidth OFDM system |
US8130629B2 (en) * | 2005-11-25 | 2012-03-06 | Go Net Systems Ltd | Simultaneous simulcast and single cast hybrid multi-tone communication system |
US7512113B2 (en) * | 2005-12-21 | 2009-03-31 | Motorola, Inc. | Method and system for determining a minimum time of flight of a radio frequency transmission |
US7769119B2 (en) | 2006-09-27 | 2010-08-03 | Sandbridge Technologies, Inc. | Method of initial synchronization of a communication signal |
CN100562001C (en) * | 2007-05-30 | 2009-11-18 | 北京中星微电子有限公司 | Determine method, device and the demodulated equipment of ofdm system pilot frequency locations |
CN101374129B (en) * | 2007-08-20 | 2012-01-11 | 中兴通讯股份有限公司 | Method for generating synchronization sequence based on OFDM, synchronization method and system |
EP2079212A1 (en) * | 2008-01-11 | 2009-07-15 | Sandbridge Technologies, Inc. | A method of initial synchronization of a communication signal |
EP2235866B1 (en) * | 2008-01-30 | 2014-02-26 | Telefonaktiebolaget LM Ericsson (publ) | A method of data modulation adapted to selected modulation rotational angle |
US8774248B2 (en) * | 2008-01-30 | 2014-07-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Receiver for MUROS adapted to estimate symbol constellation using training sequences from two sub-channels |
EP2235855B1 (en) * | 2008-01-30 | 2015-01-07 | Telefonaktiebolaget LM Ericsson (publ) | Report mechanism in a radio system reusing one time-slot |
KR101421776B1 (en) * | 2008-01-30 | 2014-07-22 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | Timeslot sharing using unbalanced qpsk modulation |
US8509208B2 (en) | 2008-02-01 | 2013-08-13 | Qualcomm Incorporated | Frequency error estimation |
CN101888354B (en) * | 2009-05-15 | 2013-06-05 | 中兴通讯股份有限公司 | Method and device for estimating channel |
JP5237214B2 (en) * | 2009-07-15 | 2013-07-17 | 株式会社日立製作所 | Transmitting apparatus, receiving apparatus, or wireless communication processing method |
US8625689B2 (en) * | 2010-07-09 | 2014-01-07 | Texas Instruments Incorporated | Time-domain link adaptation |
US8548096B2 (en) * | 2010-12-31 | 2013-10-01 | Telefonaktiebolaget L M Ericsson (Publ) | Controllable frequency offset for inphase and Quadrature (IQ) imbalance estimation |
CN103236914B (en) * | 2013-04-16 | 2016-02-03 | 深圳市力合微电子股份有限公司 | A kind of synchronizing signal generating method of power-line carrier communication system and device |
CN103580718B (en) * | 2013-10-15 | 2015-06-10 | 北京航天科工世纪卫星科技有限公司 | Quick time-frequency synchronizing method under low signal-to-noise ratio |
CN110266371B (en) | 2014-09-23 | 2021-10-22 | 华为技术有限公司 | Transmitter, receiver, and method for transmitting/receiving synchronization signal |
US9559815B1 (en) * | 2015-08-26 | 2017-01-31 | Friskydsp Technology Ltd. | Generation of OFDM symbols |
US11051263B2 (en) * | 2017-06-15 | 2021-06-29 | Qualcomm Incorporated | Synchronization channel and system acquisition for internet of things communications in a shared spectrum |
EP3481020B1 (en) | 2017-11-07 | 2021-09-01 | Siemens Aktiengesellschaft | Method for synchronising transmission and reception units in multi-carrier signal transmission |
JP6559763B2 (en) * | 2017-12-14 | 2019-08-14 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Transmitter, receiver, and method for transmitting / receiving synchronization signals |
CN111970063B (en) * | 2020-08-26 | 2022-04-29 | 北京字节跳动网络技术有限公司 | Communication method, device, equipment and storage medium |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2774961B2 (en) | 1996-03-29 | 1998-07-09 | 株式会社次世代デジタルテレビジョン放送システム研究所 | OFDM demodulator |
US5732113A (en) * | 1996-06-20 | 1998-03-24 | Stanford University | Timing and frequency synchronization of OFDM signals |
US6519291B1 (en) * | 1998-02-03 | 2003-02-11 | Lucent Technologies Inc. | Reduction of interference in discrete multi-tone (DMT) based communications systems |
US6876675B1 (en) * | 1998-02-06 | 2005-04-05 | Cisco Technology, Inc. | Synchronization in OFDM systems |
JP3606761B2 (en) * | 1998-11-26 | 2005-01-05 | 松下電器産業株式会社 | OFDM receiver |
JP3279277B2 (en) * | 1999-02-19 | 2002-04-30 | 三菱電機株式会社 | Multi-carrier communication method and multi-carrier communication device |
KR100335443B1 (en) | 1999-06-15 | 2002-05-04 | 윤종용 | Symbol timing and frequency synchronizing device for OFDM signals and method thereof |
US6985432B1 (en) * | 2000-01-28 | 2006-01-10 | Zion Hadad | OFDM communication channel |
JP2001111518A (en) * | 1999-10-04 | 2001-04-20 | Mitsubishi Electric Corp | Communication method and communications equipment |
US6614864B1 (en) * | 1999-10-12 | 2003-09-02 | Itran Communications Ltd. | Apparatus for and method of adaptive synchronization in a spread spectrum communications receiver |
US6526295B1 (en) | 1999-10-14 | 2003-02-25 | Ericsson Inc. | Power conservation method in mobile communications device |
US6628735B1 (en) * | 1999-12-22 | 2003-09-30 | Thomson Licensing S.A. | Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system |
-
2001
- 2001-05-21 ES ES200101154A patent/ES2188370B1/en not_active Expired - Fee Related
-
2002
- 2002-05-17 WO PCT/ES2002/000234 patent/WO2002095976A1/en active IP Right Grant
- 2002-05-17 ES ES02732765T patent/ES2296929T3/en not_active Expired - Lifetime
- 2002-05-17 CN CNA028141598A patent/CN1528059A/en active Pending
- 2002-05-17 BR BR0210055-0A patent/BR0210055A/en not_active IP Right Cessation
- 2002-05-17 AU AU2002304581A patent/AU2002304581B2/en not_active Ceased
- 2002-05-17 EA EA200301161A patent/EA005669B1/en not_active IP Right Cessation
- 2002-05-17 MX MXPA03010658A patent/MXPA03010658A/en active IP Right Grant
- 2002-05-17 AT AT02732765T patent/ATE377870T1/en not_active IP Right Cessation
- 2002-05-17 DE DE60223356T patent/DE60223356T2/en not_active Expired - Fee Related
- 2002-05-17 CA CA002448106A patent/CA2448106A1/en not_active Abandoned
- 2002-05-17 KR KR1020037015198A patent/KR100768835B1/en not_active IP Right Cessation
- 2002-05-17 PT PT02732765T patent/PT1389835E/en unknown
- 2002-05-17 EP EP02732765A patent/EP1389835B1/en not_active Expired - Lifetime
- 2002-05-17 IL IL15875802A patent/IL158758A0/en unknown
- 2002-05-17 JP JP2002592319A patent/JP4044445B2/en not_active Expired - Fee Related
-
2003
- 2003-11-20 US US10/718,143 patent/US7423959B2/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2002304581A1 (en) | Downlink synchronisation method for a point-to-multipoint system with OFDM modulation | |
AU2003217994A1 (en) | Systems and methods for high rate ofdm communications | |
HK1067830A1 (en) | Method and apparatus for transmitting the sync channel message in a multicarrier communication system | |
AU2002322363A1 (en) | Apparatus, method and system with a graphics-rendering engine having a time allocator | |
HK1129969A1 (en) | Transmission power control system, control method, base station and control station | |
WO2001075691A8 (en) | Finding technique for a scheduling system | |
AU2002324748A1 (en) | Power control for a channel with multiple formats in a communication system | |
AU2375901A (en) | Method and arrangement for iteratively improving a channel estimate | |
AU2001294843A1 (en) | System and method for supply chain management, including collaboration | |
IL158847A0 (en) | Communication optimization method for a multi-user ofdm digital transmission system using the electrical network | |
AU2001230462A1 (en) | Ofdm communication channel | |
AU2002357227A1 (en) | System and method for automatically flagging a channel as a favorite channel | |
AU2001248949A1 (en) | Cellular communications system/method with uplink interference ceiling | |
AU2001262721A1 (en) | Authenticatable printed matter, and method for producing the same | |
AU2002218139A1 (en) | Method for improving a channel estimate in a radiocommunications system | |
AU2003257472A1 (en) | Method for operating a radio system, emitting station and radio system | |
AU2002304583A1 (en) | Synchronisation method for the uplink channel in a point-to-multipiont communication with OFDM modulation | |
AU3848600A (en) | Method for bandwidth adapted utilization | |
AU2002340605A1 (en) | Method for transmitting data by multi-carrier modulation | |
IL158619A0 (en) | Synchronization method for the uplink channel in a point-to-multipoint communication with ofdm modulation | |
AU2003284321A1 (en) | A method and system for maintaining lip synchronization | |
AU2001282741A1 (en) | Method for downlink attenuation based on mobile protocol version | |
AU7123400A (en) | Method for reducing costs associated with inebriation | |
AU2003275041A1 (en) | System and method for message communication | |
AU2003303174A1 (en) | Transmitter diversity method for ofdm system |