NO993660L - FremgangsmÕte for Õ redusere interferens, samt radiosystem - Google Patents

FremgangsmÕte for Õ redusere interferens, samt radiosystem

Info

Publication number
NO993660L
NO993660L NO993660A NO993660A NO993660L NO 993660 L NO993660 L NO 993660L NO 993660 A NO993660 A NO 993660A NO 993660 A NO993660 A NO 993660A NO 993660 L NO993660 L NO 993660L
Authority
NO
Norway
Prior art keywords
radio system
reducing interference
procedure
well
spreading code
Prior art date
Application number
NO993660A
Other languages
English (en)
Other versions
NO993660D0 (no
Inventor
Qin Zhengdi
Original Assignee
Nokia Telecommunications 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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO993660D0 publication Critical patent/NO993660D0/no
Publication of NO993660L publication Critical patent/NO993660L/no

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)

Abstract

Oppfinnelsen angår en fremgangsmåte for å redusere interferens i et radiosystem som omfatter minst en basestasjon og en abonnentterminal. De data som skal sendes, omformes til symboler (40) i en sender, og hvert symbol (40) multipliseres med en forbindelses-spesifikk spredningskode sammensatt av chips (41). Dataene som skal sendes på forbindelser i en synkroniseringsfase, multipliseres med en spredningskode med tidsvarighet som skiller seg fra spredningskoden i de andre forbindelsene.
NO993660A 1997-01-29 1999-07-28 FremgangsmÕte for Õ redusere interferens, samt radiosystem NO993660L (no)

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
PCT/FI1998/000088 WO1998036505A1 (en) 1997-01-29 1998-01-28 Method of reducing interference, and radio system

Publications (2)

Publication Number Publication Date
NO993660D0 NO993660D0 (no) 1999-07-28
NO993660L true NO993660L (no) 1999-07-28

Family

ID=8547896

Family Applications (1)

Application Number Title Priority Date Filing Date
NO993660A NO993660L (no) 1997-01-29 1999-07-28 FremgangsmÕte for Õ redusere interferens, samt radiosystem

Country Status (8)

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

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2351713C (en) * 1998-11-17 2006-02-21 Templex Technology, Inc. Codes, methods, and apparatus for optical encoding and decoding
AU3973600A (en) * 1999-04-15 2000-11-02 Alcatel Method for reducing interference between users and use thereof in a radio accessnetwork
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
CN113162722B (zh) 2015-09-21 2024-04-12 Hyphy美国有限公司 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
KR20240057400A (ko) 2021-09-03 2024-05-02 하이파이 유에스에이 인크. 디스플레이 드라이버와 확산-스펙트럼 비디오 전송의 통합
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
WO1994010774A1 (en) 1992-11-02 1994-05-11 Norand Corporation Radio frequency communication network having adaptive communication parameters
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
JP2001510658A (ja) 2001-07-31
AU5866798A (en) 1998-09-08
EP0956655A1 (en) 1999-11-17
US6751247B1 (en) 2004-06-15
CN1237726C (zh) 2006-01-18
WO1998036505A1 (en) 1998-08-20
CN1246222A (zh) 2000-03-01
FI105959B (fi) 2000-10-31
AU732073B2 (en) 2001-04-12
NO993660D0 (no) 1999-07-28
FI970369A0 (fi) 1997-01-29
FI970369A (fi) 1998-07-30

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application