JP6506975B2 - ダイレクトコンバージョン受信機 - Google Patents
ダイレクトコンバージョン受信機 Download PDFInfo
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- JP6506975B2 JP6506975B2 JP2015010486A JP2015010486A JP6506975B2 JP 6506975 B2 JP6506975 B2 JP 6506975B2 JP 2015010486 A JP2015010486 A JP 2015010486A JP 2015010486 A JP2015010486 A JP 2015010486A JP 6506975 B2 JP6506975 B2 JP 6506975B2
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- 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
- H04L27/22—Demodulator circuits; Receiver circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
- H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
- H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
- H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
- H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
- H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
- H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
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- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Superheterodyne Receivers (AREA)
Description
Claims (13)
- 変換器を備える無線装置のためのフロントエンドシステムであって、
上記変換器は、信号発生器により発生された局所発振器信号を使用することにより、無線周波数信号をベースバンド信号にダウンコンバートするように構成された混合器を備え、
上記変換器は、上記ベースバンド信号をデジタル信号に量子化するように構成された量子化器をさらに備え、
上記信号発生器は、上記局所発振器信号が上記無線周波数信号に同期するように、上記デジタル信号に基づき、上記局所発振器信号を発生するように構成され、
上記信号発生器は、それぞれが異なる位相を有する複数の信号を発生するように構成された位相固定ループを備え、
上記信号発生器はさらに、上記デジタル信号に基づいて、上記複数の信号から1つの信号を選択し、上記選択された信号を上記混合器に供給するように構成されたセレクタを備えた無線装置のためのフロントエンドシステム。 - 上記選択された信号は、上記選択された信号と上記無線周波数信号との間の周波数もしくは位相における差が最小となるように選択される請求項1記載の無線装置のためのフロントエンドシステム。
- 上記セレクタに対する入力として使用される前に上記デジタル信号を累積するように構成されたアキュムレータをさらに備えた請求項1記載の無線装置のためのフロントエンドシステム。
- 上記位相固定ループは、複数の位相シフトを発生して上記複数の位相シフトを参照信号に加算し、それによってそれぞれが異なる位相を有する上記複数の信号を発生するように構成された位相発生器を備えた請求項1記載の無線装置のためのフロントエンドシステム。
- 上記位相発生器はさらに、上記複数の信号を上記セレクタに供給するように構成された請求項4記載の無線装置のためのフロントエンドシステム。
- 上記デジタル信号は、上記無線周波数信号の周波数を示す請求項1記載の無線装置のためのフロントエンドシステム。
- デジタル信号は、上記無線周波数信号の位相を示す請求項1記載の無線装置のためのフロントエンドシステム。
- 一定包絡線変調方式に適した請求項1記載の無線装置のためのフロントエンドシステム。
- 低ピーク対平均比の非定包絡線変調方式に適した請求項1記載の無線装置のためのフロントエンドシステム。
- 上記信号発生器の前段に、上記デジタル信号をフィルタリングするように構成されたフィルタを備えた請求項1記載の無線装置のためのフロントエンドシステム。
- 搬送波周波数オフセット補償モジュールを備えた請求項1記載の無線装置のためのフロントエンドシステム。
- 請求項1から11のうちのいずれか1つに記載のフロントエンドシステムを備えた無線装置。
- 請求項12記載の無線装置を備えた通信ネットワーク。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14154150 | 2014-02-06 | ||
EP14154150.8 | 2014-02-06 | ||
EP14178858.8A EP2905905B1 (en) | 2014-02-06 | 2014-07-29 | System for direct conversion receivers |
EP14178858.8 | 2014-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015156641A JP2015156641A (ja) | 2015-08-27 |
JP6506975B2 true JP6506975B2 (ja) | 2019-04-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015010486A Active JP6506975B2 (ja) | 2014-02-06 | 2015-01-22 | ダイレクトコンバージョン受信機 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9641368B2 (ja) |
EP (1) | EP2905905B1 (ja) |
JP (1) | JP6506975B2 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016167781A (ja) * | 2015-03-10 | 2016-09-15 | 富士通株式会社 | 無線通信装置及び無線通信装置の制御方法 |
US9722833B2 (en) * | 2015-04-29 | 2017-08-01 | Texas Instruments Incorporated | Circuits and methods for frequency offset estimation in FSK communications |
US9742444B1 (en) * | 2016-02-24 | 2017-08-22 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Broadband digital transmitter using π/4 phase offset local oscillator (LO) signals |
EP3244584B1 (en) | 2016-05-11 | 2019-07-03 | Stichting IMEC Nederland | Receiver for frequency offset correction |
US10009202B1 (en) * | 2017-08-14 | 2018-06-26 | International Business Machines Corporation | Direct RF demodulation |
JP2019078714A (ja) * | 2017-10-27 | 2019-05-23 | 協立電機株式会社 | フラックスゲートセンサ |
US10560128B2 (en) | 2017-12-05 | 2020-02-11 | Samsung Electronics Co., Ltd. | Carrier aggregated signal transmission and reception |
EP3841674A1 (en) * | 2018-11-29 | 2021-06-30 | Sony Semiconductor Solutions Corporation | Single channel receiver and receiving method |
EP4020911A1 (en) * | 2020-12-23 | 2022-06-29 | INTEL Corporation | Bluetooth receiver, electronic device and method for a bluetooth receiver |
WO2023028960A1 (zh) * | 2021-09-02 | 2023-03-09 | 华为技术有限公司 | 一种数据包传输方法及装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920010383B1 (ko) * | 1990-10-23 | 1992-11-27 | 삼성전자 주식회사 | 방송신호 직접 수신회로 |
JP2687851B2 (ja) * | 1992-10-19 | 1997-12-08 | 日本電気株式会社 | 受信機 |
JPH07106920A (ja) * | 1993-10-01 | 1995-04-21 | Sharp Corp | ウェーブレット変換を用いた周波数高速引き込み方式 |
JP2002290254A (ja) * | 2001-03-26 | 2002-10-04 | Nec Corp | ダイレクトコンバージョン受信機 |
US7203472B2 (en) * | 2002-03-15 | 2007-04-10 | Nokia Corporation | Method and apparatus providing calibration technique for RF performance tuning |
DE10219362B4 (de) * | 2002-04-30 | 2009-12-31 | Advanced Micro Devices, Inc., Sunnyvale | Automatische Verstärkungssteuerung für einen Direktumsetzer und Verfahren zum Steuern der Verstärkung eines Basisbandsignals in einem derartigen Empfänger |
KR100653181B1 (ko) * | 2005-12-07 | 2006-12-05 | 한국전자통신연구원 | 주파수 옵셋 보상 기능을 가지는 넌코히런트 동기직접변환 수신 장치 |
US20080238621A1 (en) * | 2007-03-30 | 2008-10-02 | Broadcom Corporation | Multi-mode rfid reader architecture |
US9287886B2 (en) * | 2008-02-29 | 2016-03-15 | Qualcomm Incorporated | Dynamic reference frequency for fractional-N Phase-Locked Loop |
US8041318B2 (en) * | 2008-06-17 | 2011-10-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Relative frequency error compensation for multi-carrier receivers |
KR20100050217A (ko) * | 2008-11-05 | 2010-05-13 | 삼성전자주식회사 | 근거리 무선통신 방식을 이용하여 데이터를 전송하는 단말의 데이터 전송 속도 향상 장치 및 방법 |
JP5387211B2 (ja) | 2009-07-30 | 2014-01-15 | ソニー株式会社 | 線形性改善回路、σδa/d変換器、および受信装置 |
US8711980B2 (en) | 2010-09-10 | 2014-04-29 | Intel IP Corporation | Receiver with feedback continuous-time delta-sigma modulator with current-mode input |
WO2012034281A1 (en) * | 2010-09-16 | 2012-03-22 | Huawei Technologies Co., Ltd. | Feedback information relating to a mobile communications system using carrier aggregation |
FR2976429A1 (fr) * | 2011-06-08 | 2012-12-14 | St Microelectronics Sa | Systeme de transmission sans fil |
US8750281B2 (en) * | 2012-06-21 | 2014-06-10 | Qualcomm Incorporated | Variable-length training fields in coaxial communications |
US9094113B2 (en) * | 2013-03-15 | 2015-07-28 | Qualcomm Incorporated | Apparatus and method for reducing phase noise in near field communication device signaling |
-
2014
- 2014-07-29 EP EP14178858.8A patent/EP2905905B1/en active Active
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2015
- 2015-01-22 JP JP2015010486A patent/JP6506975B2/ja active Active
- 2015-02-03 US US14/612,616 patent/US9641368B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2905905A1 (en) | 2015-08-12 |
US20150222464A1 (en) | 2015-08-06 |
US9641368B2 (en) | 2017-05-02 |
EP2905905B1 (en) | 2020-05-20 |
JP2015156641A (ja) | 2015-08-27 |
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