JP2001523917A - 通信端末及び動作方法 - Google Patents
通信端末及び動作方法Info
- Publication number
- JP2001523917A JP2001523917A JP2000521612A JP2000521612A JP2001523917A JP 2001523917 A JP2001523917 A JP 2001523917A JP 2000521612 A JP2000521612 A JP 2000521612A JP 2000521612 A JP2000521612 A JP 2000521612A JP 2001523917 A JP2001523917 A JP 2001523917A
- Authority
- JP
- Japan
- Prior art keywords
- fft
- communication terminal
- signal
- correlator
- terminal according
- 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.)
- Pending
Links
Classifications
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/708—Parallel implementation
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/709—Correlator structure
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/71—Interference-related aspects the interference being narrowband interference
- H04B1/7102—Interference-related aspects the interference being narrowband interference with transform to frequency domain
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9724048.5A GB9724048D0 (en) | 1997-11-14 | 1997-11-14 | Communications terminal and operating method |
| GB9724048.5 | 1997-11-14 | ||
| PCT/GB1998/003401 WO1999026370A2 (en) | 1997-11-14 | 1998-11-12 | Fast acquisitions of direct sequence spread spectrum signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001523917A true JP2001523917A (ja) | 2001-11-27 |
| JP2001523917A5 JP2001523917A5 (https=) | 2006-01-19 |
Family
ID=10822055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000521612A Pending JP2001523917A (ja) | 1997-11-14 | 1998-11-12 | 通信端末及び動作方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6898176B1 (https=) |
| EP (1) | EP1031202A2 (https=) |
| JP (1) | JP2001523917A (https=) |
| GB (1) | GB9724048D0 (https=) |
| WO (1) | WO1999026370A2 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008510426A (ja) * | 2004-08-16 | 2008-04-03 | ソニー エリクソン モバイル コミュニケーションズ, エービー | 共通の復調テンプレートを使用する信号収集のための装置、方法およびコンピュータプログラム製品 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3407711B2 (ja) * | 2000-04-27 | 2003-05-19 | 日本電気株式会社 | Ds−cdma方式の受信機におけるパスサーチ回路 |
| US6735243B1 (en) * | 2000-11-08 | 2004-05-11 | Nokia Corporation | Method, apparatus and system for fast acquisition of a spread spectrum signal |
| US6909736B2 (en) | 2000-12-14 | 2005-06-21 | Nokia Corporation | System for method for fine acquisition of a spread spectrum signal |
| US6459407B1 (en) | 2001-09-10 | 2002-10-01 | Nokia Mobile Phones | Cross-correlation system for time recovery in network-assisted GPS positioning |
| US7120191B2 (en) | 2001-12-12 | 2006-10-10 | Nokia Corporation | Method and apparatus for acquiring a ranging signal of a positioning system |
| GB0130804D0 (en) * | 2001-12-22 | 2002-02-06 | Koninkl Philips Electronics Nv | Method and apparatus for signal receipt and acquisition |
| US7224721B2 (en) | 2002-10-11 | 2007-05-29 | The Mitre Corporation | System for direct acquisition of received signals |
| EP1677476B1 (fr) * | 2004-12-28 | 2007-11-21 | Alcatel Lucent | GPS/OFDM terminal with shared FFT/IFFT calculation means |
| US8659820B1 (en) | 2011-06-17 | 2014-02-25 | L-3 Communications | Spectral sensing demodulator |
| CN103929215A (zh) * | 2014-05-06 | 2014-07-16 | 许昌学院 | 一种msk直扩通信高效检测方法 |
| CN103957029B (zh) * | 2014-05-26 | 2016-03-02 | 许昌学院 | 一种基于延迟相乘的qpsk-ds通信检测方法 |
| KR101811221B1 (ko) * | 2016-02-17 | 2017-12-21 | 주식회사 이노와이어리스 | 신호 분석기의 wcdma 신호 타이밍 오프셋 처리 방법 |
| US12489489B2 (en) | 2024-05-22 | 2025-12-02 | Bae Systems Information And Electronic Systems Integration Inc. | Detection and acquisition of signals over large doppler frequency ranges |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271034A (en) | 1991-08-26 | 1993-12-14 | Avion Systems, Inc. | System and method for receiving and decoding global positioning satellite signals |
| US5305286A (en) | 1992-05-21 | 1994-04-19 | Sonetech Corporation | Bistatic/monostatic sonar fence |
| US5553062A (en) * | 1993-04-22 | 1996-09-03 | Interdigital Communication Corporation | Spread spectrum CDMA interference canceler system and method |
| US5463657A (en) * | 1994-02-15 | 1995-10-31 | Lockheed Missiles & Space Company, Inc. | Detection of a multi-sequence spread spectrum signal |
| WO1996024198A1 (en) * | 1995-02-01 | 1996-08-08 | Hitachi, Ltd. | Spectrum spreading communication device and communication system |
| FI97583C (fi) * | 1995-02-02 | 1997-01-10 | Nokia Mobile Phones Ltd | Tiedonsiirtomenetelmä, lähetin ja vastaanotin |
| AU5416496A (en) * | 1995-02-23 | 1996-09-11 | Stanford Telecommunications, Inc. | Novel cellular positioning system (cps) |
| US5629929A (en) * | 1996-06-07 | 1997-05-13 | Motorola, Inc. | Apparatus for rapid interference cancellation and despreading of a CDMA waveform |
| CN1106762C (zh) * | 1996-06-17 | 2003-04-23 | 三星电子株式会社 | 数据段同步信号检测电路 |
| US6005889A (en) | 1997-07-17 | 1999-12-21 | Nokia | Pseudo-random noise detector for signals having a carrier frequency offset |
-
1997
- 1997-11-14 GB GBGB9724048.5A patent/GB9724048D0/en not_active Ceased
-
1998
- 1998-11-12 US US09/554,426 patent/US6898176B1/en not_active Expired - Fee Related
- 1998-11-12 EP EP98952933A patent/EP1031202A2/en not_active Withdrawn
- 1998-11-12 JP JP2000521612A patent/JP2001523917A/ja active Pending
- 1998-11-12 WO PCT/GB1998/003401 patent/WO1999026370A2/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008510426A (ja) * | 2004-08-16 | 2008-04-03 | ソニー エリクソン モバイル コミュニケーションズ, エービー | 共通の復調テンプレートを使用する信号収集のための装置、方法およびコンピュータプログラム製品 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999026370A3 (en) | 1999-07-22 |
| EP1031202A2 (en) | 2000-08-30 |
| US6898176B1 (en) | 2005-05-24 |
| GB9724048D0 (en) | 1998-01-14 |
| WO1999026370A2 (en) | 1999-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0779000B1 (en) | Code acquisition in a cdma communication system using multiple walsh channels | |
| US5237586A (en) | Rake receiver with selective ray combining | |
| US4649549A (en) | Apparatus for synchronizing linear PN sequences | |
| FI106166B (fi) | Vähentävän demodulaation CDMA | |
| EP0491668B1 (en) | CDMA subtractive demodulation | |
| JP3040481B2 (ja) | Cdma通信システムのサーチ獲得を行う改良された方法および装置 | |
| US7072384B2 (en) | Fixed pattern detection apparatus and fixed pattern detection method | |
| Grant et al. | Doppler estimation for fast acquisition in spread spectrum communication systems | |
| JP2005505970A (ja) | 信号干渉除去 | |
| JP2001523917A (ja) | 通信端末及び動作方法 | |
| JPH07508393A (ja) | 量子化コヒーレントrake(収集)受信機 | |
| JPH08340278A (ja) | スペクトル拡散信号の受信機 | |
| US6546042B1 (en) | Cyclic adaptive receivers for DS-CDMA signals | |
| US6490315B2 (en) | Code synchronization method and receiver | |
| Jovanovic et al. | Analysis of non-coherent correlation in DS/BPSK spread spectrum acquisition | |
| Glisic et al. | New PN code acquisition scheme for CDMA networks with low signal-to-noise ratios | |
| JP2002506595A (ja) | 受信方法及び受信器 | |
| US20090041096A1 (en) | Efficient synchronization of a spread spectrum signal in the presence of delay and frequency uncertainty | |
| Hakizimana et al. | A new M-ary wideband communication system with application to multipath channels-part i: system performance | |
| JP4335913B2 (ja) | 受信インパルス無線信号を捕捉する方法およびシステム | |
| Cameron et al. | Synchronization of CDMA systems employing interference cancellation | |
| Kwon | Third-generation TDRSS-compatible direct-sequence spread-spectrum digital receiver | |
| Jeong et al. | Large Doppler frequency compensation technique for terrestrial and LEO satellite dual mode DS/CDMA terminals | |
| CA2202621C (en) | Code acquisition in a cdma communication system using multiple walsh channels | |
| KR100399008B1 (ko) | 광대역 직접 시퀀스 코드분할다중접속 수신신호에 대한코드획득수신기 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20051027 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051027 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20051124 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080415 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20081007 |