TWI350660B - Rake receiver finger assignment based signal path concentration - Google Patents

Rake receiver finger assignment based signal path concentration

Info

Publication number
TWI350660B
TWI350660B TW095140289A TW95140289A TWI350660B TW I350660 B TWI350660 B TW I350660B TW 095140289 A TW095140289 A TW 095140289A TW 95140289 A TW95140289 A TW 95140289A TW I350660 B TWI350660 B TW I350660B
Authority
TW
Taiwan
Prior art keywords
signal path
rake receiver
based signal
assignment based
finger assignment
Prior art date
Application number
TW095140289A
Other languages
English (en)
Other versions
TW200729761A (en
Inventor
Thejaswi Bharadwaj Madapushi Sheshadri
Brian Dong
Messay Amerga
Parvathanathan Subrahmanya
Chih-Ping Hsu
Xiaoming Zhu
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200729761A publication Critical patent/TW200729761A/zh
Application granted granted Critical
Publication of TWI350660B publication Critical patent/TWI350660B/zh

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
TW095140289A 2005-10-31 2006-10-31 Rake receiver finger assignment based signal path concentration TWI350660B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73201305P 2005-10-31 2005-10-31
US11/392,316 US7693241B2 (en) 2005-10-31 2006-03-28 Rake receiver finger assignment based on signal path concentration

Publications (2)

Publication Number Publication Date
TW200729761A TW200729761A (en) 2007-08-01
TWI350660B true TWI350660B (en) 2011-10-11

Family

ID=37866179

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095140289A TWI350660B (en) 2005-10-31 2006-10-31 Rake receiver finger assignment based signal path concentration

Country Status (10)

Country Link
US (2) US7693241B2 (zh)
EP (1) EP1943742B1 (zh)
JP (2) JP4913821B2 (zh)
KR (1) KR101038407B1 (zh)
CN (1) CN101346892B (zh)
BR (1) BRPI0618056A2 (zh)
CA (1) CA2627612A1 (zh)
RU (1) RU2008121960A (zh)
TW (1) TWI350660B (zh)
WO (1) WO2007053838A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8095091B1 (en) 2007-05-18 2012-01-10 Marvell International Ltd. Transmit power amplification control for wireless device
US8583190B1 (en) * 2007-05-18 2013-11-12 Marvell International Ltd. Power saving technique for a wireless device
US8462684B1 (en) 2008-05-19 2013-06-11 Marvell International Ltd. Power saving technique for a wireless device
WO2009047647A2 (en) * 2007-08-20 2009-04-16 Marvell World Trade Ltd. Method and apparatus for wireless receiving
US8891698B2 (en) * 2007-12-03 2014-11-18 St-Ericsson Sa First significant path detection
US8295417B2 (en) * 2008-06-05 2012-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient estimation of interference in a wireless receiver
US8279911B2 (en) * 2009-03-24 2012-10-02 Qualcomm Incorporated Systems, computer program products, and methods using carrier phases to detect multipath signals
EP2273687B1 (en) * 2009-07-01 2016-12-07 Telefonaktiebolaget LM Ericsson (publ) Multi-path timing tracking and impairment modeling for improved grake receiver performance in mobility scenarios
US9031117B2 (en) 2012-12-06 2015-05-12 Qualcomm Incorporated Methods and apparatus for handling fingers with large delay spread through utility optimization
US9042491B2 (en) * 2013-01-17 2015-05-26 Qualcomm Incorporated Systems, apparatus, and methods for receiving paging messages by creating fat paths in fast fading scenarios
MX2018015694A (es) * 2016-06-22 2019-05-27 Ericsson Telefon Ab L M Ubicacion de enlaces candidatos por una terminal inalambrica.
US12063063B2 (en) 2021-09-16 2024-08-13 L3Harris Technologies, Inc. Rake receiver and related methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490165A (en) 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US6026115A (en) * 1996-08-23 2000-02-15 Ntt Mobile Communications Network, Inc. Rake receiver
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
US6731622B1 (en) * 1998-05-01 2004-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Multipath propagation delay determining means using periodically inserted pilot symbols
US6560273B1 (en) * 1998-10-07 2003-05-06 Ericsson Inc. Delay searcher and delay trackers interaction for new delays assignment to rake fingers
US6625197B1 (en) 1998-10-27 2003-09-23 Qualcomm Incorporated Method and apparatus for multipath demodulation in a code division multiple access communication system
JP3501783B2 (ja) * 2000-08-23 2004-03-02 日本電気株式会社 Ｃｄｍａ受信装置およびｃｄｍａ受信方法
US6731676B2 (en) 2001-01-11 2004-05-04 Qualcomm Inc Assigning clusters of demodulation elements in a spread spectrum system
US6728304B2 (en) * 2001-12-18 2004-04-27 Motorola, Inc. Method and apparatus for performing a signal detection and assignment in a wireless communication system
KR100737792B1 (ko) * 2002-02-12 2007-07-11 인터디지탈 테크날러지 코포레이션 무선 전기 통신국용 수신기 및 그 통신 방법
US20040072553A1 (en) * 2002-09-20 2004-04-15 Xiaohui Wang Methods, systems, and computer program products for selecting delay positions for a RAKE receiver by adjusting the delay positions based on comparisons of signal to interference ratios and/or powers for multi-path signals over time
US7469024B2 (en) * 2003-09-02 2008-12-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for finger placement in rake receiver
JP4259964B2 (ja) * 2003-09-12 2009-04-30 富士通株式会社 ＭＩＸＲ機能を有するＲａｋｅ受信機
US7460583B2 (en) * 2003-12-15 2008-12-02 Telefonaktiebolaget Lm Ericsson (Publ) Method for path searching and verification
US20070019585A1 (en) * 2005-07-22 2007-01-25 Industrial Technology Research Institute Apparatus for path selection and signal processing in wireless communications system

Also Published As

Publication number Publication date
JP2009514484A (ja) 2009-04-02
EP1943742A1 (en) 2008-07-16
KR20080060297A (ko) 2008-07-01
JP4913821B2 (ja) 2012-04-11
CA2627612A1 (en) 2007-05-10
TW200729761A (en) 2007-08-01
JP2012105282A (ja) 2012-05-31
BRPI0618056A2 (pt) 2011-08-16
CN101346892B (zh) 2013-08-21
WO2007053838A1 (en) 2007-05-10
RU2008121960A (ru) 2009-12-10
US8098780B2 (en) 2012-01-17
JP5453381B2 (ja) 2014-03-26
US7693241B2 (en) 2010-04-06
KR101038407B1 (ko) 2011-06-01
US20100150212A1 (en) 2010-06-17
CN101346892A (zh) 2009-01-14
US20070098051A1 (en) 2007-05-03
EP1943742B1 (en) 2018-11-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees