CN1164055C - 一种扩频多地址码的正交变换方法 - Google Patents
一种扩频多地址码的正交变换方法 Download PDFInfo
- Publication number
- CN1164055C CN1164055C CNB008017441A CN00801744A CN1164055C CN 1164055 C CN1164055 C CN 1164055C CN B008017441 A CNB008017441 A CN B008017441A CN 00801744 A CN00801744 A CN 00801744A CN 1164055 C CN1164055 C CN 1164055C
- Authority
- CN
- China
- Prior art keywords
- rotation
- centerdot
- sequence
- orthogonal
- anglec
- 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 - Fee Related
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
- H04J13/12—Generation of orthogonal codes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
-2 | -1 | 0 | 1 | 2 | |
RC0(τ) | 1 | 2 | 3 | 2 | 1 |
RC1(τ) | -1 | 0 | 3 | 0 | -1 |
RC2(τ) | -1 | 0 | 3 | 0 | -1 |
RC3(τ) | 1 | 0 | 3 | 0 | 1 |
RC0C1(τ) | -1 | -2 | -1 | 0 | 1 |
RC0C2(τ) | 1 | 0 | -1 | -2 | -1 |
RC0C3(τ) | -1 | 0 | -1 | 0 | -1 |
RC1C2(τ) | 1 | -2 | -1 | 2 | 1 |
RC1C3(τ) | -1 | 2 | -1 | 0 | 1 |
RC2C3(τ) | 1 | 0 | -1 | 2 | -1 |
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2000/000092 WO2001080438A1 (fr) | 2000-04-18 | 2000-04-18 | Procede de transformation orthogonale par etalement de spectre de codes multiadresses |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1336048A CN1336048A (zh) | 2002-02-13 |
CN1164055C true CN1164055C (zh) | 2004-08-25 |
Family
ID=4574650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008017441A Expired - Fee Related CN1164055C (zh) | 2000-04-18 | 2000-04-18 | 一种扩频多地址码的正交变换方法 |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1278309A4 (zh) |
JP (1) | JP2004520727A (zh) |
KR (1) | KR20020091195A (zh) |
CN (1) | CN1164055C (zh) |
AU (1) | AU2000240978B2 (zh) |
CA (1) | CA2403621A1 (zh) |
HK (1) | HK1041129B (zh) |
WO (1) | WO2001080438A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002249062A1 (en) * | 2002-03-22 | 2003-10-08 | Linkair Communications, Inc. | A coding method to create mismatched spread spectrum sequence with zero correlation window |
AU2002313158A1 (en) * | 2002-05-30 | 2003-12-19 | Linkair Communications, Inc. | A method and system for speed data transmission in cdma |
JP3643366B2 (ja) | 2003-07-10 | 2005-04-27 | 松下電器産業株式会社 | Cdma送信装置及びcdma受信装置 |
EP2288048A1 (en) * | 2009-08-21 | 2011-02-23 | Panasonic Corporation | Rotated multi-dimensional constellations for improved diversity in fading channels |
KR101399115B1 (ko) * | 2013-08-20 | 2014-05-30 | 한국과학기술원 | 대역확산신호 수신기의 동작방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471497A (en) * | 1993-11-01 | 1995-11-28 | Zehavi; Ephraim | Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding |
US5825835A (en) * | 1996-02-23 | 1998-10-20 | L-3 Communications Corporation | Multi-user acquisition procedure for multipoint-to-point synchronous CDMA systems |
-
2000
- 2000-04-18 WO PCT/CN2000/000092 patent/WO2001080438A1/zh not_active Application Discontinuation
- 2000-04-18 EP EP00920330A patent/EP1278309A4/en not_active Withdrawn
- 2000-04-18 CA CA002403621A patent/CA2403621A1/en not_active Abandoned
- 2000-04-18 JP JP2001577710A patent/JP2004520727A/ja active Pending
- 2000-04-18 CN CNB008017441A patent/CN1164055C/zh not_active Expired - Fee Related
- 2000-04-18 KR KR1020027013617A patent/KR20020091195A/ko not_active Application Discontinuation
- 2000-04-18 AU AU2000240978A patent/AU2000240978B2/en not_active Ceased
-
2002
- 2002-04-08 HK HK02102599.9A patent/HK1041129B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU4097800A (en) | 2001-10-30 |
HK1041129B (zh) | 2005-03-04 |
KR20020091195A (ko) | 2002-12-05 |
AU2000240978B2 (en) | 2004-01-15 |
HK1041129A1 (en) | 2002-06-28 |
EP1278309A1 (en) | 2003-01-22 |
CA2403621A1 (en) | 2002-09-19 |
CN1336048A (zh) | 2002-02-13 |
JP2004520727A (ja) | 2004-07-08 |
AU2000240978B9 (en) | 2001-10-30 |
EP1278309A4 (en) | 2004-12-29 |
WO2001080438A1 (fr) | 2001-10-25 |
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Legal Events
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PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CI01 | Correction of invention patent gazette |
Correction item: Grant of patent False: WO1998/001970 JP 1998.01.15 Number: 34 Page: 523 Volume: 20 |
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CI03 | Correction of invention patent |
Correction item: Grant of patent False: WO1998/001970 JP 1998.01.15 Number: 34 Page: The title page Volume: 20 |
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Free format text: CORRECT: GRANT OF PATENT RIGHT; FROM: WO1998/ 001970 JP 1998.1.15 TO: NONE |
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C19 | Lapse of patent right due to non-payment of the annual fee | ||
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