JP2010016820A - デジタル信号を受信する受信機及び方法 - Google Patents
デジタル信号を受信する受信機及び方法 Download PDFInfo
- Publication number
- JP2010016820A JP2010016820A JP2009154384A JP2009154384A JP2010016820A JP 2010016820 A JP2010016820 A JP 2010016820A JP 2009154384 A JP2009154384 A JP 2009154384A JP 2009154384 A JP2009154384 A JP 2009154384A JP 2010016820 A JP2010016820 A JP 2010016820A
- Authority
- JP
- Japan
- Prior art keywords
- cyclic
- carrier frequency
- receiver
- frame
- preamble
- 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
Images
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
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- 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
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
-
- 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
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2676—Blind, i.e. without using known symbols
- H04L27/2678—Blind, i.e. without using known symbols using cyclostationarities, e.g. cyclic prefix or postfix
-
- 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
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
- H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
- H04L27/3872—Compensation for phase rotation in the demodulated signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0089—In-band signals
- H04L2027/0093—Intermittant signals
- H04L2027/0095—Intermittant signals in a preamble or similar structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
【解決手段】 本発明は、バイナリ変調されたサイクリック・プリアンブルを備えたフレームを含むデジタル信号を受信する受信機を提供し、第1のフレームの第1のサイクリック・プリアンブルの少なくとも一部と第2のフレームの第2のサイクリック・プリアンブルの少なくとも一部とを相関させ、この相関に基づいて搬送周波数オフセットを決定する手段を有する。
【選択図】 図2
Description
105 マルチパス
200 受信機
305 遅延器
310 複素共役ユニット
315 乗算器
320 相関器
325 位相推定器
330 搬送周波数補償ユニット
901 シフト器
Claims (13)
- バイナリ変調されたサイクリック・プリアンブルを備えたフレームを含むデジタル信号を受信する受信機であって、
第1のフレームの第1のサイクリック・プリアンブルの少なくとも一部と第2のフレームの第2のサイクリック・プリアンブルの少なくとも一部とを相関させ、前記相関に基づいて搬送周波数オフセットを決定する手段を有する受信機。 - 前記バイナリ変調されたサイクリック・プリアンブルは、ガード間隔であり、
前記ガード間隔は、疑似雑音系列を含む、請求項1に記載の受信機。 - 前記相関及び決定する手段は、
前記サイクリック・プリアンブルを相関させる相関器と、
前記相関器の前記相関に従って受信信号の前記搬送周波数オフセットを決定する位相推定器と
を有する、請求項1又は2に記載の受信機。 - 前記2つのサイクリック・プリアンブルの前記少なくとも一部は、同じバイナリ変調されたデータを含む、請求項1ないし3のうちいずれか1項に記載の受信機。
- 前記2つのサイクリック・プリアンブルの少なくとも一方をシフトし、前記2つのサイクリック・プリアンブルの位相が相互にシフトしたときに同じバイナリ変調されたデータを得るシフト器を更に有する、請求項1ないし4のうちいずれか1項に記載の受信機。
- 受信信号の前記搬送周波数オフセットを補償する搬送周波数補償ユニットを更に有する、請求項1ないし5のうちいずれか1項に記載の受信機。
- 前記第1のサイクリック・プリアンブル及び前記第2のサイクリック・プリアンブルは、それぞれ2つの連続フレームからのものである、請求項1ないし6のうちいずれか1項に記載の受信機。
- バイナリ変調されたサイクリック・プリアンブルを備えたフレームを含むデジタル信号を受信する方法であって、
第1のフレームの第1のサイクリック・プリアンブルの少なくとも一部と第2のフレームの第2のサイクリック・プリアンブルの少なくとも一部とを相関させ、
前記相関に基づいて搬送周波数オフセットを決定することを有する方法。 - 前記バイナリ変調されたサイクリック・プリアンブルは、ガード間隔であり、
前記ガード間隔は、疑似雑音系列を含む、請求項8に記載の方法。 - 前記2つのサイクリック・プリアンブルの前記少なくとも一部は、同じバイナリ変調されたデータを含む、請求項8又は9に記載の方法。
- 前記2つのサイクリック・プリアンブルの少なくとも一方をシフトし、前記2つのサイクリック・プリアンブルの位相が相互にシフトしたときに同じバイナリ変調されたデータを得ることを更に有する、請求項8ないし10のうちいずれか1項に記載の方法。
- 受信信号の前記搬送周波数オフセットを補償することを更に有する、請求項8ないし11のうちいずれか1項に記載の方法。
- 前記第1のサイクリック・プリアンブル及び前記第2のサイクリック・プリアンブルは、それぞれ2つの連続フレームからのものである、請求項8ないし12のうちいずれか1項に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08290630.6 | 2008-06-30 | ||
EP08290630A EP2141877A1 (en) | 2008-06-30 | 2008-06-30 | Receiver and method for frequency offset estimation based on correlation techniques |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010016820A true JP2010016820A (ja) | 2010-01-21 |
JP5553544B2 JP5553544B2 (ja) | 2014-07-16 |
Family
ID=40280753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009154384A Expired - Fee Related JP5553544B2 (ja) | 2008-06-30 | 2009-06-29 | デジタル信号を受信する受信機及び方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8433007B2 (ja) |
EP (2) | EP2141877A1 (ja) |
JP (1) | JP5553544B2 (ja) |
KR (1) | KR101608530B1 (ja) |
CN (1) | CN101621491B (ja) |
BR (1) | BRPI0902026A2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8401105B2 (en) | 2010-06-10 | 2013-03-19 | Intel Mobile Communications GmbH | Method for transmitting a data signal in a MIMO system |
CN102571647B (zh) * | 2010-12-27 | 2014-11-05 | 中兴通讯股份有限公司 | 一种频偏估计方法及装置 |
GB2488168A (en) * | 2011-02-18 | 2012-08-22 | Samsung Electronics Co Ltd | Additional signalling for Digital Video Broadcasting |
CN102694762B (zh) * | 2011-03-25 | 2017-02-22 | 北京新岸线移动多媒体技术有限公司 | 一种实现载波和采样时钟同步的方法、用户站点设备 |
JP5752575B2 (ja) | 2011-11-29 | 2015-07-22 | 株式会社東芝 | クロック周波数誤差検出装置 |
KR102337651B1 (ko) | 2014-02-13 | 2021-12-10 | 삼성전자주식회사 | 송신 장치, 수신 장치 및 그 제어 방법 |
US9031124B1 (en) * | 2014-02-21 | 2015-05-12 | Saankhya Labs Private Limited | Scheme for generating hypothesis and estimating a carrier frequency offset in a receiver |
CN105227287B (zh) * | 2014-06-17 | 2018-12-25 | 华为技术有限公司 | 数据传输同步方法及装置 |
GB2532233A (en) * | 2014-11-12 | 2016-05-18 | Sony Corp | Transmitter and receiver and methods of transmitting and receiving |
TWI589137B (zh) * | 2015-01-28 | 2017-06-21 | 晨星半導體股份有限公司 | 估測方法與裝置、取樣頻率偏移之計算方法以及相位估測方法與裝置 |
CN105991487A (zh) * | 2015-02-02 | 2016-10-05 | 晨星半导体股份有限公司 | 估测方法与装置、取样频率偏移的计算方法以及相位估测方法与装置 |
JPWO2017022422A1 (ja) * | 2015-08-04 | 2018-05-24 | 三菱電機株式会社 | 無線通信システム、基地局および無線通信方法 |
US11792063B2 (en) * | 2019-05-14 | 2023-10-17 | Qualcomm Incorporated | Techniques for phase rotation correction |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11225124A (ja) * | 1997-09-19 | 1999-08-17 | Matsushita Electric Ind Co Ltd | 変調・復調装置および方法 |
WO2003032542A1 (fr) * | 2001-09-28 | 2003-04-17 | Fujitsu Limited | Procede et dispositif de synchronisation de frequence |
JP2007504690A (ja) * | 2003-08-28 | 2007-03-01 | モトローラ・インコーポレイテッド | 複数の送信アンテナのofdmチャネル推定及びトラッキング |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7324428B1 (en) * | 2001-10-19 | 2008-01-29 | Legend Silicon Corporation | Frame identifier |
WO2009045244A1 (en) * | 2007-09-28 | 2009-04-09 | Thomson Licensing | Time-frequency synchronization and frame number detection for dmb-t systems |
US7652980B2 (en) * | 2007-11-02 | 2010-01-26 | Nokia Corporation | Orthogonal frequency division multiplexing synchronization |
US7961816B2 (en) * | 2007-11-28 | 2011-06-14 | Industrial Technology Research Institute | Device for and method of signal synchronization in a communication system |
-
2008
- 2008-06-30 EP EP08290630A patent/EP2141877A1/en not_active Withdrawn
-
2009
- 2009-06-16 EP EP09162826.3A patent/EP2141875B1/en active Active
- 2009-06-24 KR KR1020090056396A patent/KR101608530B1/ko active IP Right Grant
- 2009-06-25 US US12/456,981 patent/US8433007B2/en active Active
- 2009-06-25 CN CN200910150275.2A patent/CN101621491B/zh active Active
- 2009-06-29 BR BRPI0902026-8A patent/BRPI0902026A2/pt active Search and Examination
- 2009-06-29 JP JP2009154384A patent/JP5553544B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11225124A (ja) * | 1997-09-19 | 1999-08-17 | Matsushita Electric Ind Co Ltd | 変調・復調装置および方法 |
WO2003032542A1 (fr) * | 2001-09-28 | 2003-04-17 | Fujitsu Limited | Procede et dispositif de synchronisation de frequence |
JP2007504690A (ja) * | 2003-08-28 | 2007-03-01 | モトローラ・インコーポレイテッド | 複数の送信アンテナのofdmチャネル推定及びトラッキング |
Non-Patent Citations (3)
Title |
---|
JPN6013024371; Jun Wang, Zhi-Xing Yang, Chang-Yong Pan, Jian Song, Lin Yang: 'Iterative Padding Subtraction of the PN Sequencefor the TDS-OFDM over Broadcast Channels' IEEE Transactions on Consumer Electronics Vol. 51, No. 4,, 200511, Pages:1148 - 1152 * |
JPN6013024374; Lin Gui, Bo Liu, Wenfeng Ma, Bowei Song: 'A Novel Method of Frequency-Offset Estimation Using Time Domain PNSequences in OFDM Systems' IEEE TRANSACTIONS ON BROADCASTING VOL. 54, NO. 1,, 200803, Pages:140 - 145 * |
JPN6013024376; Y. Bhargava, K. Giridhar: 'Efficient Frequency Offset Estimation and Tracking for Reuse-1 OFDMA Systems' TENCON 2006. 2006 IEEE Region 10 Conference , 200611, Pages: 1 - 4 * |
Also Published As
Publication number | Publication date |
---|---|
CN101621491A (zh) | 2010-01-06 |
US8433007B2 (en) | 2013-04-30 |
EP2141875A1 (en) | 2010-01-06 |
EP2141877A1 (en) | 2010-01-06 |
BRPI0902026A2 (pt) | 2010-04-13 |
EP2141875B1 (en) | 2017-08-02 |
KR101608530B1 (ko) | 2016-04-01 |
CN101621491B (zh) | 2014-12-10 |
JP5553544B2 (ja) | 2014-07-16 |
US20100034300A1 (en) | 2010-02-11 |
KR20100003209A (ko) | 2010-01-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5553544B2 (ja) | デジタル信号を受信する受信機及び方法 | |
US11456829B2 (en) | Transmitter and method of transmitting, receiver and method of receiving | |
US20190132176A1 (en) | Transmitter and method of transmitting | |
US9954704B2 (en) | Transmitter, receiver and methods and computer readable medium | |
JP4672014B2 (ja) | 直交周波数分割多重化システムにおける周波数同期の獲得方法及び装置 | |
US9948436B2 (en) | Receiver and method of receiving | |
US20090060101A1 (en) | Method and apparatus for carrier frequency offset synchronization of orthogonal frequency division multiplexing receivers | |
JP2004282759A (ja) | Ofdmシステムでの初期周波数の同期方法および装置 | |
KR20110007063A (ko) | 데이터 검출 및 복구 방법, 장치 및 수신기 | |
GB2540595A (en) | Receiver and method of receiving | |
EP2670102A1 (en) | Method and device for synchronizing a receiver on received preamble symbol | |
WO2014155065A1 (en) | Transmitter and method of transmitting payload data, receiver and method of receiving payload data in an ofdm system | |
US9154293B2 (en) | Method and apparatus for compensating for variable symbol timing using cyclic prefix in non-synchronized OFDM system | |
US10476725B2 (en) | Receiver and method of receiving | |
KR20100000606A (ko) | 직교 주파수 분할 다중 시스템에서의 주파수 옵셋 추정장치 및 방법, 직교 주파수 분할 다중 시스템에서의 시간오차 추정 방법 | |
GB2547267A (en) | Transmitter, receiver and methods | |
KR20040107561A (ko) | 다중 반송파 수신 시스템의 주파수 옵셋 추정장치 및 그의추정방법 | |
KR20160077597A (ko) | 주파수 옵셋 추정장치 및 그 방법 | |
KR20040107563A (ko) | 다중 반송파 수신 시스템의 주파수 옵셋 추정장치 및 그의동작방법 | |
KR20140106894A (ko) | 직교 주파수 다중 전송 방식 시스템에서의 시간 동기 방법 및 장치, 및 수신 신호 복조 방법 및 장치 | |
KR20080004703A (ko) | 무선 셀룰러 통신 시스템에서 채널을 추정하기 위한 장치및 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120209 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130516 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130528 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130827 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20131126 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140326 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20140403 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140430 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140527 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5553544 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |