ATE535060T1 - Vorrichtung und verfahren zur wegesuche in einem cdma-empfänger - Google Patents

Vorrichtung und verfahren zur wegesuche in einem cdma-empfänger

Info

Publication number
ATE535060T1
ATE535060T1 AT05252765T AT05252765T ATE535060T1 AT E535060 T1 ATE535060 T1 AT E535060T1 AT 05252765 T AT05252765 T AT 05252765T AT 05252765 T AT05252765 T AT 05252765T AT E535060 T1 ATE535060 T1 AT E535060T1
Authority
AT
Austria
Prior art keywords
delay profile
power delay
sidelobe
path
receiver
Prior art date
Application number
AT05252765T
Other languages
English (en)
Inventor
Junichiro Kawamoto
Noriyuki Maeda
Kenichi Higuchi
Mamoru Sawahashi
Original Assignee
Ntt Docomo Inc
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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Application granted granted Critical
Publication of ATE535060T1 publication Critical patent/ATE535060T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • 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
    • H04B7/0802—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 antenna selection
    • H04B7/0828—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 antenna selection with delay elements in antenna paths
    • 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
    • H04B1/7113—Determination of path profile
    • 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
    • H04B7/0413—MIMO systems
    • 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
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • 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
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Circuits Of Receivers In General (AREA)
AT05252765T 2004-05-13 2005-05-05 Vorrichtung und verfahren zur wegesuche in einem cdma-empfänger ATE535060T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004144180 2004-05-13

Publications (1)

Publication Number Publication Date
ATE535060T1 true ATE535060T1 (de) 2011-12-15

Family

ID=34941153

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05252765T ATE535060T1 (de) 2004-05-13 2005-05-05 Vorrichtung und verfahren zur wegesuche in einem cdma-empfänger

Country Status (5)

Country Link
US (1) US7379745B2 (de)
EP (1) EP1596506B1 (de)
KR (2) KR20060047838A (de)
CN (1) CN100353679C (de)
AT (1) ATE535060T1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60215116T2 (de) * 2002-04-10 2007-05-03 Enomatic S.R.L. Getränkespender
CN103236876B (zh) * 2005-01-17 2016-08-10 夏普株式会社 发送装置及方法、接收装置及方法、以及通信系统
JP4478119B2 (ja) * 2005-05-25 2010-06-09 パナソニック株式会社 受信装置
US8009745B2 (en) * 2005-11-15 2011-08-30 Qualcomm Incorporated Time tracking for a receiver with guard interval correlation
US20100238906A1 (en) * 2006-02-22 2010-09-23 Masahiro Komatsu Transmission timing control system and method thereof, and base station using the same and mobile station
CN101072046B (zh) * 2007-06-19 2010-12-08 中兴通讯股份有限公司 多径选择方法及接收机
KR101590414B1 (ko) 2007-08-14 2016-02-01 가부시키가이샤 엔티티 도코모 수신장치 및 데이터 취득방법
KR101020301B1 (ko) * 2009-01-20 2011-03-07 인하대학교 산학협력단 공간 다중화 방식의 다중 안테나 시스템을 위한 신호 검출 방법
US9401784B2 (en) 2009-10-21 2016-07-26 Qualcomm Incorporated Time and frequency acquisition and tracking for OFDMA wireless systems
US10111111B2 (en) 2009-11-19 2018-10-23 Qualcomm Incorporated Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks
JP6632915B2 (ja) * 2016-03-11 2020-01-22 株式会社Ｎｔｔドコモ 推定装置
CN107728118B (zh) * 2017-09-25 2020-11-06 西北工业大学 无需拟合协方差矩阵的低旁瓣发射波束图设计方法
WO2020050004A1 (ja) 2018-09-03 2020-03-12 日本電気株式会社 伝送装置、伝送時間変動補償方法および伝送時間変動補償プログラムを格納した非一時的なコンピュータ可読媒体
EP4002709A1 (de) 2020-11-16 2022-05-25 Nokia Technologies Oy Polarisationsteilung für verbesserten mimo-durchsatz

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365234A (en) * 1977-03-23 1994-11-15 United States Of America As Represented By The Secretary Of The Navy High-resolution sidelobe-canceller auxiliary antennas
JPH0725653B2 (ja) * 1987-10-19 1995-03-22 花王株式会社 毛髪化粧料
JP3468189B2 (ja) 2000-02-02 2003-11-17 日本電気株式会社 パターン生成回路及びそれを用いたマルチパス検出回路並びにそのマルチパス検出方法
JP3438701B2 (ja) * 2000-06-09 2003-08-18 日本電気株式会社 Ｄｓ−ｃｄｍａシステムにおける受信パスタイミング検出回路
FR2824732B1 (fr) * 2001-05-15 2003-08-22 Oreal Composition de conditionnement des cheveux comprenant un melange d'alcools gras et procede de traitement cosmetique des cheveux
US7142586B2 (en) * 2002-09-18 2006-11-28 Telefonaktiebolaget Lm Ericsson (Publ) Robust delay estimation architecture
US7116998B2 (en) * 2003-05-14 2006-10-03 Telefonaktiebolaget L M Ericsson (Publ) Subtractive multipath delay detection

Also Published As

Publication number Publication date
KR20070068323A (ko) 2007-06-29
EP1596506B1 (de) 2011-11-23
US7379745B2 (en) 2008-05-27
CN100353679C (zh) 2007-12-05
CN1697336A (zh) 2005-11-16
KR20060047838A (ko) 2006-05-18
EP1596506A1 (de) 2005-11-16
US20050255819A1 (en) 2005-11-17

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