CN1212093A - 正交调制信号的信号解调和分集合并的方法和设备 - Google Patents
正交调制信号的信号解调和分集合并的方法和设备 Download PDFInfo
- Publication number
- CN1212093A CN1212093A CN97192464.3A CN97192464A CN1212093A CN 1212093 A CN1212093 A CN 1212093A CN 97192464 A CN97192464 A CN 97192464A CN 1212093 A CN1212093 A CN 1212093A
- Authority
- CN
- China
- Prior art keywords
- signal
- diversity
- phase place
- modulation signal
- modulation
- 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
- 238000000034 method Methods 0.000 title claims description 28
- 230000006340 racemization Effects 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 2
- 230000001427 coherent effect Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 10
- 238000007792 addition Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000010267 cellular communication Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0865—Independent weighting, i.e. weights based on own antenna reception parameters
-
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/606,240 US5930305A (en) | 1996-02-23 | 1996-02-23 | Signal demodulation and diversity combining in a communications system using orthogonal modulation |
US08/606,240 | 1996-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1212093A true CN1212093A (zh) | 1999-03-24 |
CN1124702C CN1124702C (zh) | 2003-10-15 |
Family
ID=24427156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97192464A Expired - Lifetime CN1124702C (zh) | 1996-02-23 | 1997-01-15 | 正交调制信号的信号解调和分集合并的方法和设备 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5930305A (zh) |
EP (1) | EP0882333B1 (zh) |
JP (1) | JP3003006B2 (zh) |
CN (1) | CN1124702C (zh) |
CA (1) | CA2195176C (zh) |
DE (1) | DE69700625T2 (zh) |
WO (1) | WO1997031432A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113228578A (zh) * | 2018-11-06 | 2021-08-06 | 外交和联邦事务大臣通过外交和联邦事务部行事 | 用于多个调制方案的改进解调制的设备和方法 |
CN115665847A (zh) * | 2022-12-26 | 2023-01-31 | 为准(北京)电子科技有限公司 | 一种窄带物联网单载波信号的上行同步方法和装置 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6167243A (en) * | 1998-07-01 | 2000-12-26 | Nortel Networks Limited | Diversity combining in a communications system |
JP3543632B2 (ja) * | 1998-09-09 | 2004-07-14 | 日本電気株式会社 | ダイバーシチ無線装置及びダイバーシチ無線方法 |
US6690714B1 (en) | 1998-09-30 | 2004-02-10 | Fujitsu Limited | Method and apparatus for achieving demodulation in radio communications system using M-sequence orthogonal modulation |
US6259893B1 (en) * | 1998-11-03 | 2001-07-10 | Ibiquity Digital Corporation | Method and apparatus for reduction of FM interference for FM in-band on-channel digital audio broadcasting system |
GB9828216D0 (en) * | 1998-12-21 | 1999-02-17 | Northern Telecom Ltd | A downlink beamforming approach for frequency division duplex cellular systems |
US6621850B1 (en) | 1998-12-21 | 2003-09-16 | Nortel Networks Limited | Block detection receiver |
US6668011B1 (en) * | 1998-12-21 | 2003-12-23 | Nortel Networks Limited | Block detection receiver |
EP1091500A3 (en) * | 1999-10-06 | 2002-06-12 | Lucent Technologies Inc. | Method and apparatus for reverse link energy estimation in a wireless network |
AU2001237971A1 (en) * | 2000-01-26 | 2001-08-07 | Vyyo, Ltd. | Space diversity method and system for broadband wireless access |
US7002902B2 (en) * | 2000-02-24 | 2006-02-21 | Ipr Licensing, Inc. | Method and system for economical beam forming in a radio communication system |
US6704438B1 (en) * | 2000-05-08 | 2004-03-09 | Aloka Co., Ltd. | Apparatus and method for improving the signal to noise ratio on ultrasound images using coded waveforms |
EP1290809B1 (en) * | 2000-05-25 | 2005-11-23 | Samsung Electronics Co., Ltd. | Apparatus and method for transmission diversity using more than two antennas |
FR2818836A1 (fr) * | 2000-12-26 | 2002-06-28 | Koninkl Philips Electronics Nv | Appareil comportant un dispositif de reception travaillant en diversite d'espace et procede de traitement pour des signaux recus selon plusieurs voies |
US6633616B2 (en) * | 2001-02-21 | 2003-10-14 | Magis Networks, Inc. | OFDM pilot tone tracking for wireless LAN |
US6549583B2 (en) * | 2001-02-21 | 2003-04-15 | Magis Networks, Inc. | Optimum phase error metric for OFDM pilot tone tracking in wireless LAN |
US6549561B2 (en) * | 2001-02-21 | 2003-04-15 | Magis Networks, Inc. | OFDM pilot tone tracking for wireless LAN |
WO2002069515A1 (en) * | 2001-02-21 | 2002-09-06 | Magis Networks, Inc. | Ofdm pilot tone tracking for wireless lan |
TW508909B (en) * | 2001-04-13 | 2002-11-01 | Syncomm Technology Corp | Phase detection method and apparatus thereof |
US7023928B2 (en) * | 2001-08-06 | 2006-04-04 | Lucent Technologies Inc. | Synchronization of a pilot assisted channel estimation orthogonal frequency division multiplexing system |
KR100617674B1 (ko) * | 2002-05-07 | 2006-08-28 | 삼성전자주식회사 | 칩 합성기를 이용한 다중 왈시코드 복조장치 및 방법 |
EP1724949A4 (en) * | 2004-03-30 | 2011-06-22 | Panasonic Corp | BASSISTATION DEVICE, MOBILE STATION DEVICE AND METHOD FOR DATA CHANNEL ALLOCATION |
US9542588B2 (en) | 2014-11-17 | 2017-01-10 | Cypress Semiconductor Corporations | Capacitive fingerprint sensor with quadrature demodulator and multiphase scanning |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3634439A1 (de) * | 1986-10-09 | 1988-04-14 | Blaupunkt Werke Gmbh | Verfahren und schaltungsanordnung zum empfang von radiowellen |
JPH082060B2 (ja) * | 1989-09-13 | 1996-01-10 | 日本電気株式会社 | 搬送波再生方式およびディジタル位相復調装置 |
JPH04357721A (ja) * | 1991-06-03 | 1992-12-10 | Fujitsu Ltd | スペースダイバーシティ同相合成方式 |
US5442627A (en) * | 1993-06-24 | 1995-08-15 | Qualcomm Incorporated | Noncoherent receiver employing a dual-maxima metric generation process |
US5361276A (en) * | 1993-09-13 | 1994-11-01 | At&T Bell Laboratories | All digital maximum likelihood based spread spectrum receiver |
JP2605615B2 (ja) * | 1993-12-30 | 1997-04-30 | 日本電気株式会社 | スペクトラム拡散受信機 |
-
1996
- 1996-02-23 US US08/606,240 patent/US5930305A/en not_active Expired - Lifetime
-
1997
- 1997-01-15 DE DE69700625T patent/DE69700625T2/de not_active Expired - Fee Related
- 1997-01-15 WO PCT/CA1997/000020 patent/WO1997031432A1/en active IP Right Grant
- 1997-01-15 CA CA002195176A patent/CA2195176C/en not_active Expired - Fee Related
- 1997-01-15 JP JP9529673A patent/JP3003006B2/ja not_active Expired - Lifetime
- 1997-01-15 EP EP97900170A patent/EP0882333B1/en not_active Expired - Lifetime
- 1997-01-15 CN CN97192464A patent/CN1124702C/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113228578A (zh) * | 2018-11-06 | 2021-08-06 | 外交和联邦事务大臣通过外交和联邦事务部行事 | 用于多个调制方案的改进解调制的设备和方法 |
CN115665847A (zh) * | 2022-12-26 | 2023-01-31 | 为准(北京)电子科技有限公司 | 一种窄带物联网单载波信号的上行同步方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2195176C (en) | 2002-01-01 |
EP0882333B1 (en) | 1999-10-13 |
JP3003006B2 (ja) | 2000-01-24 |
CN1124702C (zh) | 2003-10-15 |
WO1997031432A1 (en) | 1997-08-28 |
DE69700625T2 (de) | 2000-01-27 |
DE69700625D1 (de) | 1999-11-18 |
JPH11504190A (ja) | 1999-04-06 |
CA2195176A1 (en) | 1997-08-24 |
EP0882333A1 (en) | 1998-12-09 |
US5930305A (en) | 1999-07-27 |
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Owner name: APPLE COMPUTER, INC. Free format text: FORMER OWNER: YANXING BIDEKE CO., LTD. Effective date: 20130705 Owner name: YANXING BIDEKE CO., LTD. Free format text: FORMER OWNER: NORTEL NETWORKS LTD (CA) Effective date: 20130705 |
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Effective date of registration: 20130705 Address after: American California Patentee after: APPLE Inc. Address before: American New York Patentee before: NORTEL NETWORKS LTD. Effective date of registration: 20130705 Address after: American New York Patentee after: NORTEL NETWORKS LTD. Address before: Quebec Patentee before: NORTEL NETWORKS Ltd. |
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