FI105959B - Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä - Google Patents

Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä Download PDF

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Publication number
FI105959B
FI105959B FI970369A FI970369A FI105959B FI 105959 B FI105959 B FI 105959B FI 970369 A FI970369 A FI 970369A FI 970369 A FI970369 A FI 970369A FI 105959 B FI105959 B FI 105959B
Authority
FI
Finland
Prior art keywords
spreading code
radio system
different
synchronization step
synchronization
Prior art date
Application number
FI970369A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI970369A (fi
FI970369A0 (fi
Inventor
Qin Zhengdi
Original Assignee
Nokia Networks Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of FI970369A0 publication Critical patent/FI970369A0/fi
Priority to FI970369A priority Critical patent/FI105959B/fi
Priority to CN98802166.8A priority patent/CN1237726C/zh
Priority to EP98902004A priority patent/EP0956655A1/fr
Priority to US09/341,736 priority patent/US6751247B1/en
Priority to AU58667/98A priority patent/AU732073B2/en
Priority to PCT/FI1998/000088 priority patent/WO1998036505A1/fr
Priority to JP53330898A priority patent/JP2001510658A/ja
Publication of FI970369A publication Critical patent/FI970369A/fi
Priority to NO993660A priority patent/NO993660L/no
Application granted granted Critical
Publication of FI105959B publication Critical patent/FI105959B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • 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
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Noise Elimination (AREA)
FI970369A 1997-01-29 1997-01-29 Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä FI105959B (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI970369A FI105959B (fi) 1997-01-29 1997-01-29 Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä
AU58667/98A AU732073B2 (en) 1997-01-29 1998-01-28 Method of reducing interference, and radio system
EP98902004A EP0956655A1 (fr) 1997-01-29 1998-01-28 Procede de reduction du brouillage et systeme radio
US09/341,736 US6751247B1 (en) 1997-01-29 1998-01-28 Method of reducing interference, and radio system
CN98802166.8A CN1237726C (zh) 1997-01-29 1998-01-28 减少干扰的方法以及无线系统
PCT/FI1998/000088 WO1998036505A1 (fr) 1997-01-29 1998-01-28 Procede de reduction du brouillage et systeme radio
JP53330898A JP2001510658A (ja) 1997-01-29 1998-01-28 干渉を減少する方法及び無線システム
NO993660A NO993660L (no) 1997-01-29 1999-07-28 FremgangsmÕte for Õ redusere interferens, samt radiosystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI970369A FI105959B (fi) 1997-01-29 1997-01-29 Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä
FI970369 1997-01-29

Publications (3)

Publication Number Publication Date
FI970369A0 FI970369A0 (fi) 1997-01-29
FI970369A FI970369A (fi) 1998-07-30
FI105959B true FI105959B (fi) 2000-10-31

Family

ID=8547896

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970369A FI105959B (fi) 1997-01-29 1997-01-29 Menetelmä interferenssin vähentämiseksi ja radiojärjestelmä

Country Status (8)

Country Link
US (1) US6751247B1 (fr)
EP (1) EP0956655A1 (fr)
JP (1) JP2001510658A (fr)
CN (1) CN1237726C (fr)
AU (1) AU732073B2 (fr)
FI (1) FI105959B (fr)
NO (1) NO993660L (fr)
WO (1) WO1998036505A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029887A1 (fr) * 1998-11-17 2000-05-25 Templex Technology, Inc. Codes, procedes et dispositif de codage et de decodage optique
WO2000064084A1 (fr) * 1999-04-15 2000-10-26 Alcatel Procede de reduction d'interference entre utilisateurs et utilisation dans un reseau d'acces radio
JP3513465B2 (ja) * 2000-02-22 2004-03-31 シャープ株式会社 無線通信送信機及び無線通信受信機
JP4255601B2 (ja) * 2000-06-14 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける移動局の同期確立方法
KR100782204B1 (ko) * 2000-12-29 2007-12-05 엘지전자 주식회사 엘에스부호 선택에 따른 부호쌍 생성및 부호 할당 방법
JP2004296719A (ja) * 2003-03-26 2004-10-21 Renesas Technology Corp 半導体装置
US7738536B2 (en) * 2003-04-15 2010-06-15 Novatel Inc. Apparatus for and method of making pulse-shape measurements
US7298780B2 (en) 2003-12-12 2007-11-20 Nokia Corporation Multiple access using different codes lengths for global navigation satellite systems
US6999036B2 (en) * 2004-01-07 2006-02-14 Raysat Cyprus Limited Mobile antenna system for satellite communications
US7738606B2 (en) * 2005-03-24 2010-06-15 Novatel Inc. System and method for making correlation measurements utilizing pulse shape measurements
CN1933470A (zh) * 2005-09-13 2007-03-21 上海贝尔阿尔卡特股份有限公司 分布式多发多收－正交频分复用系统帧同步方法及装置
US7738537B2 (en) * 2005-09-14 2010-06-15 Novatel Inc. Apparatus for and method of determining quadrature code timing from pulse-shape measurements made using an in-phase code
US7668228B2 (en) 2005-09-16 2010-02-23 Novatel Inc. Apparatus for and method of correlating to rising chip edges
CN107925435B (zh) 2015-09-21 2021-05-04 罗克福安全有限公司 用于通过不完美的电磁通路传输采样信号的系统
CN110663194B (zh) 2017-03-20 2021-09-07 Hyphy美国有限公司 基于cdma的媒体接口
US11716114B2 (en) 2020-11-25 2023-08-01 Hyphy Usa Inc. Encoder and decoder circuits for the transmission of video media using spread spectrum direct sequence modulation
US11997415B2 (en) 2021-08-17 2024-05-28 Hyphy Usa Inc. Sampled analog storage system
US11769468B2 (en) 2022-01-19 2023-09-26 Hyphy Usa Inc. Spread-spectrum video transport integration with timing controller
US11842671B2 (en) 2022-03-07 2023-12-12 Hyphy Usa Inc. Spread-spectrum video transport source driver integration with display panel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930140A (en) 1989-01-13 1990-05-29 Agilis Corporation Code division multiplex system using selectable length spreading code sequences
CA2148381A1 (fr) 1992-11-02 1994-05-11 Ronald L. Mahany Reseau de communication radiofrequence a parametres de communication adaptatifs
MY112371A (en) 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
JPH08335898A (ja) 1995-06-07 1996-12-17 N T T Ido Tsushinmo Kk Ｃｄｍａ信号受信機
US5946344A (en) * 1997-04-07 1999-08-31 Intermec Ip Corp. Multiple-rate direct sequence architecture utilizing a fixed chipping rate and variable spreading code lengths

Also Published As

Publication number Publication date
US6751247B1 (en) 2004-06-15
CN1237726C (zh) 2006-01-18
AU732073B2 (en) 2001-04-12
FI970369A (fi) 1998-07-30
AU5866798A (en) 1998-09-08
NO993660D0 (no) 1999-07-28
CN1246222A (zh) 2000-03-01
WO1998036505A1 (fr) 1998-08-20
FI970369A0 (fi) 1997-01-29
EP0956655A1 (fr) 1999-11-17
NO993660L (no) 1999-07-28
JP2001510658A (ja) 2001-07-31

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