CN1166139C - 同步和调制类型的检测 - Google Patents
同步和调制类型的检测 Download PDFInfo
- Publication number
- CN1166139C CN1166139C CNB00812390XA CN00812390A CN1166139C CN 1166139 C CN1166139 C CN 1166139C CN B00812390X A CNB00812390X A CN B00812390XA CN 00812390 A CN00812390 A CN 00812390A CN 1166139 C CN1166139 C CN 1166139C
- Authority
- CN
- China
- Prior art keywords
- modulation type
- signal
- modulation
- type
- received signal
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title description 21
- 238000004891 communication Methods 0.000 claims abstract description 34
- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
- 230000002596 correlated effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 230000010267 cellular communication Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
- H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
- H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03401—PSK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (22)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/340,254 US6463107B1 (en) | 1999-07-01 | 1999-07-01 | Methods and apparatuses for synchronization and modulation type detection |
US09/340254 | 1999-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1372744A CN1372744A (zh) | 2002-10-02 |
CN1166139C true CN1166139C (zh) | 2004-09-08 |
Family
ID=23332545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB00812390XA Expired - Lifetime CN1166139C (zh) | 1999-07-01 | 2000-06-27 | 同步和调制类型的检测 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6463107B1 (zh) |
EP (1) | EP1197050B1 (zh) |
JP (1) | JP4464022B2 (zh) |
CN (1) | CN1166139C (zh) |
AT (1) | ATE323996T1 (zh) |
AU (1) | AU5820700A (zh) |
DE (1) | DE60027432T2 (zh) |
MY (1) | MY120849A (zh) |
WO (1) | WO2001003397A1 (zh) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6185259B1 (en) * | 1996-06-12 | 2001-02-06 | Ericsson Inc. | Transmitter/receiver for GMSK and offset-QAM |
FI108494B (fi) * | 1998-12-22 | 2002-01-31 | Nokia Corp | Signalointimenetelmõ ja tietoliikennejõrjestelmõ |
US6463107B1 (en) * | 1999-07-01 | 2002-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for synchronization and modulation type detection |
US6804211B1 (en) * | 1999-08-03 | 2004-10-12 | Wi-Lan Inc. | Frame structure for an adaptive modulation wireless communication system |
FI110825B (fi) * | 1999-08-10 | 2003-03-31 | Nokia Corp | Menetelmä modulaationilmaisimen valintaan vastaanottimessa ja vastaanotin |
US7561643B1 (en) * | 1999-10-27 | 2009-07-14 | Nokia Corporation | DC offset correction in mobile communication system |
US6628706B1 (en) * | 1999-12-06 | 2003-09-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for transforming a channel estimate |
FR2802371B1 (fr) * | 1999-12-10 | 2003-09-26 | Matra Nortel Communications | Procede de signalisation dans un systeme de radiocommunication, emetteurs, recepteurs et repeteurs pour la mise en oeuvre du procede |
CA2302958A1 (en) * | 2000-03-23 | 2001-09-23 | Spacebridge Networks Corporation | Method and system for detecting repetitive bit patterns |
WO2002041520A2 (en) | 2000-11-15 | 2002-05-23 | Ensemble Communications, Inc. | Improved frame structure for a communication system using adaptive modulation |
US8009667B1 (en) | 2001-01-16 | 2011-08-30 | Wi—LAN, Inc. | Packing source data packets into transporting packets with fragmentation |
DE10111206C2 (de) * | 2001-03-08 | 2003-04-03 | Infineon Technologies Ag | Blinde Detektion für Mobilfunkempfänger |
US7046975B2 (en) * | 2001-03-13 | 2006-05-16 | Matsushita Electric Industrial Co., Ltd. | Method and system for blind detection of modulation type |
US7103115B2 (en) | 2001-05-21 | 2006-09-05 | At&T Corp. | Optimum training sequences for wireless systems |
DE10124782B8 (de) * | 2001-05-21 | 2012-09-13 | Intel Mobile Communications GmbH | Übermittlung und Erkennung der Modulationsart in digitalen Kommunikationssystemen mittels eines der Trainingssequenz aufgeprägten Phasenrotationsfaktors |
US7012966B2 (en) * | 2001-05-21 | 2006-03-14 | At&T Corp. | Channel estimation for wireless systems with multiple transmit antennas |
GB0123290D0 (en) | 2001-09-27 | 2001-11-21 | Nokia Corp | DC offset correction in a mobile communication system |
GB0124321D0 (en) * | 2001-10-10 | 2001-11-28 | Nokia Corp | Modulation determination |
US7272768B2 (en) * | 2002-12-09 | 2007-09-18 | Broadcom Corporation | Edge incremental redundancy memory structure and memory management |
US7187736B2 (en) * | 2003-02-13 | 2007-03-06 | Motorola Inc. | Reducing interference in a GSM communication system |
EP1465354A1 (en) * | 2003-04-01 | 2004-10-06 | STMicroelectronics N.V. | Method and device for synchronization in a wireless ultra wide band data communications system |
JP4000088B2 (ja) * | 2003-05-09 | 2007-10-31 | 松下電器産業株式会社 | 無線受信装置および受信フィルタリング方法 |
US7406139B2 (en) * | 2003-06-16 | 2008-07-29 | Broadcom Corporation | System and method to identify a modulation format of a data frame within a cellular wireless network |
US7302233B2 (en) * | 2003-06-23 | 2007-11-27 | Texas Instruments Incorporated | Multiuser detection for wireless communications systems in the presence of interference |
US20050084040A1 (en) * | 2003-10-20 | 2005-04-21 | Stewart Kenneth A. | Method for modulation detection |
WO2005048551A1 (en) * | 2003-10-28 | 2005-05-26 | Sepura Limited | Blind modulation detection |
US7386063B1 (en) * | 2003-10-31 | 2008-06-10 | Atheros Communications, Inc. | Voting block for identifying WLAN signal modulation type |
KR20070053655A (ko) * | 2004-03-05 | 2007-05-25 | 넥스트넷 와이어리스 인크. | 적응 변조를 위한 시스템 및 방법 |
US8107560B2 (en) * | 2004-05-12 | 2012-01-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for interference cancellation in communication signal processing |
US7574175B2 (en) * | 2004-11-01 | 2009-08-11 | Broadcom Corporation | Method and system for selective equalization enablement based on modulation type |
US20060209993A1 (en) * | 2005-02-18 | 2006-09-21 | Wei Lu | Demodulator and receiver for pre-coded partial response signals |
US7499506B2 (en) * | 2005-03-22 | 2009-03-03 | Qualcomm Incorporated | Detection of signal modulation format type |
US20070025468A1 (en) * | 2005-07-28 | 2007-02-01 | Weidong Li | GMSK/8-PSK mix-mode support for GSM/GPRS/EDGE compliant handsets |
US7697638B2 (en) * | 2005-08-16 | 2010-04-13 | Freescale Semiconductor, Inc. | Modulation detection in a SAIC operational environment |
US7894551B2 (en) * | 2005-08-29 | 2011-02-22 | Mediatek Inc. | Modulation scheme detecting apparatus and related method |
US8358723B1 (en) * | 2005-11-12 | 2013-01-22 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Self-configurable radio receiver system and method for use with signals without prior knowledge of signal defining characteristics |
US8768343B2 (en) | 2006-03-31 | 2014-07-01 | Zebra Enterprise Solutions Corp | Wireless local area network receiver and associated method |
US9362976B2 (en) | 2006-04-26 | 2016-06-07 | Zih Corp. | Wireless local area network system and receiver adapted for use thereof and associated method |
US8892065B2 (en) * | 2006-04-26 | 2014-11-18 | Zebra Enterprise Solutions Corp. | Method, apparatus, and computer program product for wireless signal storage with signal recognition detection triggering |
US7885357B1 (en) * | 2008-01-09 | 2011-02-08 | Mediatek Inc. | Apparatus for signal detection to enhance performance of a receiver and method therefor |
KR20100003206A (ko) * | 2008-06-30 | 2010-01-07 | 한국전자통신연구원 | 디지털 멀티미디어 방송 송수신 장치 및 방법 |
US8804876B2 (en) * | 2009-02-20 | 2014-08-12 | Qualcomm Incorporated | Enhanced modulation detection |
US8331498B2 (en) * | 2009-04-13 | 2012-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Blind modulation detection |
US20150139657A1 (en) * | 2012-05-20 | 2015-05-21 | Erez Moshe Yahalomi | High data rate transmission |
US8781037B2 (en) * | 2012-06-27 | 2014-07-15 | Intel Mobile Communications GmbH | Method and a processing unit for processing a data signal |
US10802108B2 (en) | 2014-07-31 | 2020-10-13 | Symbol Technologies, Llc | Two pass detection technique for non-echo pulsed ranging |
DE102017219691B3 (de) * | 2017-11-06 | 2019-05-02 | Laird Dabendorf Gmbh | Verfahren und Vorrichtungen zur Bestimmung der Modulationsart eines Signals und Konfiguration einer Verstärkungseinheit |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2752468A1 (de) | 1977-11-24 | 1979-05-31 | Ferdinand Dipl Ing Liedtke | Verfahren zur automatischen erkennung phasengetasteter signale mit unbekannten parametern |
US4933958A (en) | 1987-12-17 | 1990-06-12 | Siemens Aktiengesellschaft | Method for receiving carrier oscillations modulated with a useful signal |
JPH0220153A (ja) | 1988-07-07 | 1990-01-23 | Sharp Corp | 4相位相検波回路及び8相位相検波回路 |
US5289476A (en) | 1991-05-10 | 1994-02-22 | Echelon Corporation | Transmission mode detection in a modulated communication system |
US5363408A (en) | 1992-03-24 | 1994-11-08 | General Instrument Corporation | Mode selective quadrature amplitude modulation communication system |
JPH06284642A (ja) | 1993-03-23 | 1994-10-07 | Fuji Electric Co Ltd | コイル固定用ばねのばね圧監視装置 |
SE503522C2 (sv) | 1994-10-31 | 1996-07-01 | Ericsson Telefon Ab L M | Förfarande och anordning för kanalestimering |
JP3118384B2 (ja) | 1994-12-05 | 2000-12-18 | 株式会社ケンウッド | 受信信号変調方式識別回路 |
US5761190A (en) | 1995-02-20 | 1998-06-02 | Pioneer Electronic Corporation | OFDM broadcast wave receiver |
US5805642A (en) | 1996-12-20 | 1998-09-08 | Wei; Ruey-Yi | Method for detecting differently encoded signal sequences using a recursively computed reference signal |
US5940438A (en) * | 1997-02-18 | 1999-08-17 | Mitsubishi Electric Information Technology Center America, Inc (Ita) | Universal modem for digital video, audio and data communications |
FR2764143A1 (fr) | 1997-05-27 | 1998-12-04 | Philips Electronics Nv | Procede de determination d'un format d'emission de symboles dans un systeme de transmission et systeme |
EP0895387A1 (de) | 1997-07-28 | 1999-02-03 | Deutsche Thomson-Brandt Gmbh | Erkennung des Übertragungsmodus eines DVB-Signales |
US6192070B1 (en) * | 1998-01-02 | 2001-02-20 | Mitsubishi Electric Research Laboratories, Inc. | Universal modem for digital video, audio and data communications |
US6463107B1 (en) * | 1999-07-01 | 2002-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for synchronization and modulation type detection |
-
1999
- 1999-07-01 US US09/340,254 patent/US6463107B1/en not_active Expired - Lifetime
-
2000
- 2000-06-27 EP EP00943913A patent/EP1197050B1/en not_active Expired - Lifetime
- 2000-06-27 CN CNB00812390XA patent/CN1166139C/zh not_active Expired - Lifetime
- 2000-06-27 AU AU58207/00A patent/AU5820700A/en not_active Abandoned
- 2000-06-27 AT AT00943913T patent/ATE323996T1/de not_active IP Right Cessation
- 2000-06-27 WO PCT/EP2000/005982 patent/WO2001003397A1/en active IP Right Grant
- 2000-06-27 DE DE60027432T patent/DE60027432T2/de not_active Expired - Lifetime
- 2000-06-27 JP JP2001508135A patent/JP4464022B2/ja not_active Expired - Lifetime
- 2000-06-27 MY MYPI20002892A patent/MY120849A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE60027432D1 (de) | 2006-05-24 |
JP4464022B2 (ja) | 2010-05-19 |
EP1197050B1 (en) | 2006-04-19 |
DE60027432T2 (de) | 2006-09-14 |
WO2001003397A1 (en) | 2001-01-11 |
MY120849A (en) | 2005-11-30 |
EP1197050A1 (en) | 2002-04-17 |
AU5820700A (en) | 2001-01-22 |
ATE323996T1 (de) | 2006-05-15 |
JP2003503962A (ja) | 2003-01-28 |
CN1372744A (zh) | 2002-10-02 |
US6463107B1 (en) | 2002-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1166139C (zh) | 同步和调制类型的检测 | |
CN1097928C (zh) | 码处理改善的接收机和传输系统 | |
EP0820674B1 (en) | Fft receiver for mfsk | |
CN1166080C (zh) | 无线电系统中用于信道估计的装置和方法 | |
CN100345395C (zh) | 使用训练序列的方法 | |
EP0899923A1 (en) | Transmission of power control signals in a multicarrier modulation system | |
CN101341703A (zh) | 用于减少无线收发器中的信道估计噪声的设备和方法 | |
CN1256828A (zh) | 通信系统中确定信号对干扰加噪声功率比的方法和系统 | |
CN1154310C (zh) | 使用两级直流偏移校正、同步和信道估计的无线接收机 | |
CN1128922A (zh) | 解调由多路载波传送的信号的方法和装置 | |
EP0186691A1 (en) | Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format | |
CN1433619A (zh) | 带有直流偏移补偿的均衡 | |
CA2077269C (en) | Time synchronization of a receiver in a digital radio telephone system | |
US6249518B1 (en) | TDMA single antenna co-channel interference cancellation | |
US6411664B1 (en) | Correlation detecting apparatus, its detecting method and communication apparatus and its communication method | |
CN1791177A (zh) | 用于数字接收器中的同步获取的设备及其方法 | |
CN1901692A (zh) | 估计接入突发的到达时间的方法、检测器和基站收发信机 | |
JP2008514149A (ja) | ワイヤレスデジタル通信システムにおけるデータ記号の適応デジタルロッキングおよびソフト評価のための機器および方法 | |
US20080130805A1 (en) | Timing tracking in a multiple receive antenna system | |
US6836518B1 (en) | Synchronization control method for receiver apparatus of data transmission system utilizing orthogonal frequency division multiplex, and data transmission system | |
CN101889407A (zh) | 用于利用多个天线接收数据信号的方法和装置 | |
CN1179524C (zh) | 用于变换信道估计的方法和设备 | |
CN1378731A (zh) | 具有发射分集的信道估计的方法和装置 | |
CN1288627A (zh) | 数字解调器 | |
CN1110933C (zh) | 数字解调器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CLUSTER CO., LTD. Free format text: FORMER OWNER: TELEFONAKTIEBOLAGET LM ERICSSON (SE) S-126 25 STOCKHOLM, SWEDEN Effective date: 20150128 Owner name: AOPU DISI CELLULAR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CLUSTER CO., LTD. Effective date: 20150128 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150128 Address after: Texas, USA Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Delaware Patentee before: Clastres LLC Effective date of registration: 20150128 Address after: Delaware Patentee after: Clastres LLC Address before: Stockholm Patentee before: Telefonaktiebolaget LM Ericsson |
|
CX01 | Expiry of patent term |
Granted publication date: 20040908 |
|
CX01 | Expiry of patent term |