CN101262468B - 利用导频信号传送技术的数字通信系统和方法 - Google Patents
利用导频信号传送技术的数字通信系统和方法 Download PDFInfo
- Publication number
- CN101262468B CN101262468B CN2008100058577A CN200810005857A CN101262468B CN 101262468 B CN101262468 B CN 101262468B CN 2008100058577 A CN2008100058577 A CN 2008100058577A CN 200810005857 A CN200810005857 A CN 200810005857A CN 101262468 B CN101262468 B CN 101262468B
- Authority
- CN
- China
- Prior art keywords
- amplitude
- point
- code element
- modulation system
- 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
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Classifications
-
- 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
- H04L27/345—Modifications of the signal space to allow the transmission of additional information
- H04L27/3455—Modifications of the signal space to allow the transmission of additional information in order to facilitate carrier recovery at the receiver end, e.g. by transmitting a pilot or by using additional signal points to allow the detection of rotations
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP105990/98 | 1998-04-16 | ||
JP10599098A JP3166705B2 (ja) | 1998-04-16 | 1998-04-16 | 無線装置及び送信方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB991052099A Division CN100386982C (zh) | 1998-04-16 | 1999-04-16 | 利用导频信号传送技术的数字通信系统和方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101262468A CN101262468A (zh) | 2008-09-10 |
CN101262468B true CN101262468B (zh) | 2012-03-28 |
Family
ID=14422176
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB991052099A Expired - Lifetime CN100386982C (zh) | 1998-04-16 | 1999-04-16 | 利用导频信号传送技术的数字通信系统和方法 |
CN2008100058577A Expired - Lifetime CN101262468B (zh) | 1998-04-16 | 1999-04-16 | 利用导频信号传送技术的数字通信系统和方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB991052099A Expired - Lifetime CN100386982C (zh) | 1998-04-16 | 1999-04-16 | 利用导频信号传送技术的数字通信系统和方法 |
Country Status (6)
Country | Link |
---|---|
US (3) | US6608843B1 (zh) |
EP (1) | EP0951151B1 (zh) |
JP (1) | JP3166705B2 (zh) |
KR (2) | KR100374735B1 (zh) |
CN (2) | CN100386982C (zh) |
DE (1) | DE69934349T2 (zh) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3166705B2 (ja) * | 1998-04-16 | 2001-05-14 | 松下電器産業株式会社 | 無線装置及び送信方法 |
US6608868B1 (en) | 1999-01-19 | 2003-08-19 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for digital wireless communications |
KR100325367B1 (ko) | 2000-01-28 | 2002-03-04 | 박태진 | 직교 주파수 분할 다중 통신 시스템에서의 비트 오율 측정장치및 방법 |
JP3685687B2 (ja) * | 2000-06-23 | 2005-08-24 | 株式会社日立国際電気 | ディジタル変調伝送方法 |
KR100770899B1 (ko) * | 2001-10-12 | 2007-10-26 | 삼성전자주식회사 | 다중레벨 변조방식을 지원하는 이동통신 시스템의복조방법 및 장치 |
JP3637323B2 (ja) * | 2002-03-19 | 2005-04-13 | 株式会社東芝 | 受信装置、送受信装置及び受信方法 |
CN1833390B (zh) * | 2003-08-07 | 2012-01-18 | 松下电器产业株式会社 | 无线发送装置及无线发送方法 |
KR20070100968A (ko) * | 2005-02-09 | 2007-10-15 | 제넨테크, 인크. | 매트릭스 메탈로프로테아제 길항제를 사용한, her2박리의 억제 |
KR100913089B1 (ko) | 2006-02-07 | 2009-08-21 | 엘지전자 주식회사 | 다중 반송파 시스템에 적용되는 파일럿 신호 전송 방법 |
US8428175B2 (en) * | 2007-03-09 | 2013-04-23 | Qualcomm Incorporated | Quadrature modulation rotating training sequence |
US8290083B2 (en) * | 2007-03-09 | 2012-10-16 | Qualcomm Incorporated | Quadrature imbalance mitigation using unbiased training sequences |
US8081695B2 (en) * | 2007-03-09 | 2011-12-20 | Qualcomm, Incorporated | Channel estimation using frequency smoothing |
JP5123324B2 (ja) * | 2007-03-09 | 2013-01-23 | クゥアルコム・インコーポレイテッド | 不偏トレーニングシーケンスを使用した直交不平衡緩和 |
US8064550B2 (en) | 2007-03-09 | 2011-11-22 | Qualcomm, Incorporated | Quadrature imbalance estimation using unbiased training sequences |
CN110086736B (zh) * | 2013-04-12 | 2022-09-23 | 太阳专利托管公司 | 发送装置、发送方法、接收装置、接收方法 |
CN105340233B (zh) * | 2013-07-26 | 2016-11-23 | 英派尔科技开发有限公司 | 导频序列确定 |
FR3036907B1 (fr) * | 2015-05-29 | 2017-07-14 | Sigfox | Procedes d’emission et de reception d’un signal de diffusion comportant un signal pilote et un signal d’information |
EP4005169A4 (en) * | 2019-07-29 | 2022-08-03 | Telefonaktiebolaget LM Ericsson (publ) | METHOD AND DEVICE FOR PHASE CONTROLLED ADAPTIVE MODULATION |
CN114070335A (zh) * | 2020-08-06 | 2022-02-18 | 索尼公司 | 电子设备、通信方法和存储介质 |
WO2023065122A1 (en) * | 2021-10-19 | 2023-04-27 | Nokia Shanghai Bell Co., Ltd. | Channel state information error compensation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5381449A (en) * | 1990-06-12 | 1995-01-10 | Motorola, Inc. | Peak to average power ratio reduction methodology for QAM communications systems |
EP0668664A1 (en) * | 1994-01-31 | 1995-08-23 | Matsushita Electric Industrial Co., Ltd. | CDMA/TDD radio communication system |
US5712877A (en) * | 1995-05-26 | 1998-01-27 | Simon Fraser University | Pilot-symbol aided continuous phase modulation system |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5140615A (en) * | 1990-06-12 | 1992-08-18 | Motorola, Inc. | Maximal ratio diversity combining technique |
FR2671923B1 (fr) * | 1991-01-17 | 1993-04-16 | France Etat | Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant. |
US5222104A (en) * | 1991-12-30 | 1993-06-22 | Motorola, Inc. | Gain control circuit for radio transmitter |
ZA938324B (en) * | 1992-11-24 | 1994-06-07 | Qualcomm Inc | Pilot carrier dot product circuit |
JP3219877B2 (ja) * | 1992-12-07 | 2001-10-15 | 松下電器産業株式会社 | フェージング歪補償方式 |
JP3153869B2 (ja) * | 1993-05-11 | 2001-04-09 | 株式会社日立国際電気 | フェージング歪補償方式及びその回路 |
US5533048A (en) * | 1993-07-28 | 1996-07-02 | Celeritas Technologies, Ltd. | Apparatus and method for compensating for limiter induced non-linear distortion in a wireless data communication system |
KR0145047B1 (ko) * | 1993-09-28 | 1998-07-15 | 김광호 | 디지탈신호 기록/재생장치의 변조 및 복조회로 |
JP2689890B2 (ja) * | 1993-12-30 | 1997-12-10 | 日本電気株式会社 | スペクトラム拡散受信機 |
JP3055085B2 (ja) * | 1994-04-22 | 2000-06-19 | 株式会社アドバンテスト | デジタル変調解析装置 |
US5602669A (en) * | 1994-06-30 | 1997-02-11 | Sony Corporation | Digital signal transmission apparatus, digital signal transmission method, and digital signal transmitter-receiver |
US5659578A (en) * | 1994-11-23 | 1997-08-19 | At&T Wireless Services, Inc. | High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio |
US5809083A (en) * | 1994-11-23 | 1998-09-15 | At&T Wireless Services, Inc. | Differentially encoded pilot word system and method for wireless transmissions of digital data |
JP2655108B2 (ja) * | 1994-12-12 | 1997-09-17 | 日本電気株式会社 | Cdma送受信装置 |
JPH0983409A (ja) * | 1995-09-14 | 1997-03-28 | Fujitsu Ltd | フェージング推定方式 |
DE69630095T2 (de) * | 1995-11-09 | 2004-07-08 | Ntt Docomo, Inc. | Sender-Empfänger für mobile Kommunikationsanordnung mit Duplex-Frequenzverschachtelung (FDD) und Duplex-Zeitverschachtelung (TDD) |
DE69633705T2 (de) * | 1995-11-16 | 2006-02-02 | Ntt Mobile Communications Network Inc. | Verfahren zum Erfassen eines digitalen Signals und Detektor |
KR100194620B1 (ko) * | 1995-12-21 | 1999-06-15 | 정선종 | 이동통신 시스템에서의 순방향 링크 페이딩의 보상장치 |
JP2785804B2 (ja) * | 1996-05-30 | 1998-08-13 | 日本電気株式会社 | 移動通信システム |
FI103851B1 (fi) * | 1996-09-18 | 1999-09-30 | Nokia Telecommunications Oy | Menetelmä lähetystason mittauksen helpottamiseksi ja tukiasema |
JP3311951B2 (ja) * | 1996-12-20 | 2002-08-05 | 富士通株式会社 | 符号多重送信装置 |
JP3166705B2 (ja) * | 1998-04-16 | 2001-05-14 | 松下電器産業株式会社 | 無線装置及び送信方法 |
-
1998
- 1998-04-16 JP JP10599098A patent/JP3166705B2/ja not_active Expired - Lifetime
-
1999
- 1999-04-15 US US09/292,398 patent/US6608843B1/en not_active Expired - Lifetime
- 1999-04-15 DE DE69934349T patent/DE69934349T2/de not_active Expired - Lifetime
- 1999-04-15 EP EP99107576A patent/EP0951151B1/en not_active Expired - Lifetime
- 1999-04-16 CN CNB991052099A patent/CN100386982C/zh not_active Expired - Lifetime
- 1999-04-16 KR KR10-1999-0013473A patent/KR100374735B1/ko not_active IP Right Cessation
- 1999-04-16 CN CN2008100058577A patent/CN101262468B/zh not_active Expired - Lifetime
-
2002
- 2002-08-28 KR KR10-2002-0051032A patent/KR100452789B1/ko not_active IP Right Cessation
-
2003
- 2003-06-24 US US10/601,591 patent/US20040095899A1/en not_active Abandoned
-
2008
- 2008-06-04 US US12/132,817 patent/US20080240289A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5381449A (en) * | 1990-06-12 | 1995-01-10 | Motorola, Inc. | Peak to average power ratio reduction methodology for QAM communications systems |
EP0668664A1 (en) * | 1994-01-31 | 1995-08-23 | Matsushita Electric Industrial Co., Ltd. | CDMA/TDD radio communication system |
US5712877A (en) * | 1995-05-26 | 1998-01-27 | Simon Fraser University | Pilot-symbol aided continuous phase modulation system |
Also Published As
Publication number | Publication date |
---|---|
US20080240289A1 (en) | 2008-10-02 |
US20040095899A1 (en) | 2004-05-20 |
EP0951151A2 (en) | 1999-10-20 |
CN1250993A (zh) | 2000-04-19 |
KR20020075836A (ko) | 2002-10-07 |
KR100452789B1 (ko) | 2004-10-14 |
CN100386982C (zh) | 2008-05-07 |
JPH11298547A (ja) | 1999-10-29 |
US6608843B1 (en) | 2003-08-19 |
EP0951151A3 (en) | 2004-01-28 |
DE69934349T2 (de) | 2007-06-14 |
DE69934349D1 (de) | 2007-01-25 |
CN101262468A (zh) | 2008-09-10 |
EP0951151B1 (en) | 2006-12-13 |
KR100374735B1 (ko) | 2003-03-04 |
JP3166705B2 (ja) | 2001-05-14 |
KR19990083243A (ko) | 1999-11-25 |
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Legal Events
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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: OPTIS WIRELESS TECHNOLOGY LLC Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20140819 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140819 Address after: texas Patentee after: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) Address before: Japan Osaka Patentee before: Matsushita Electric Industrial Co., Ltd. |
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ASS | Succession or assignment of patent right |
Owner name: WI-FI NO.1 CO., LTD. Free format text: FORMER OWNER: OPTIS WIRELESS TECHNOLOGY LLC Effective date: 20141113 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20141113 Address after: texas Patentee after: Wi-Fi No. 1 Ltd Address before: texas Patentee before: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
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CX01 | Expiry of patent term |
Granted publication date: 20120328 |
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CX01 | Expiry of patent term |