ATE408950T1 - Verfahren zur kanalschätzung in gegenwart von sendestrahlformung - Google Patents

Verfahren zur kanalschätzung in gegenwart von sendestrahlformung

Info

Publication number
ATE408950T1
ATE408950T1 AT03748443T AT03748443T ATE408950T1 AT E408950 T1 ATE408950 T1 AT E408950T1 AT 03748443 T AT03748443 T AT 03748443T AT 03748443 T AT03748443 T AT 03748443T AT E408950 T1 ATE408950 T1 AT E408950T1
Authority
AT
Austria
Prior art keywords
channel
channels
transmit beam
propagation
dpch
Prior art date
Application number
AT03748443T
Other languages
English (en)
Inventor
Giuseppe Montalbano
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE408950T1 publication Critical patent/ATE408950T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Noise Elimination (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
AT03748443T 2002-10-30 2003-10-10 Verfahren zur kanalschätzung in gegenwart von sendestrahlformung ATE408950T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02292709 2002-10-30
EP03290294 2003-02-05

Publications (1)

Publication Number Publication Date
ATE408950T1 true ATE408950T1 (de) 2008-10-15

Family

ID=32232210

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03748443T ATE408950T1 (de) 2002-10-30 2003-10-10 Verfahren zur kanalschätzung in gegenwart von sendestrahlformung

Country Status (8)

Country Link
US (1) US8005159B2 (de)
EP (1) EP1559251B1 (de)
JP (1) JP4440211B2 (de)
CN (1) CN1708966B (de)
AT (1) ATE408950T1 (de)
AU (1) AU2003267748A1 (de)
DE (1) DE60323662D1 (de)
WO (1) WO2004040869A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6970722B1 (en) * 2002-08-22 2005-11-29 Cisco Technology, Inc. Array beamforming with wide nulls
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
KR100571138B1 (ko) * 2004-01-15 2006-04-13 삼성전자주식회사 파일럿 신호를 이용한 빔 형성 방법, 이를 수행하기 위한장치 및 시스템
US7359470B2 (en) * 2004-09-10 2008-04-15 Mitsubishi Electric Research Laboratories, Inc Minimizing feedback rate for channel state information in MIMO systems
CA2583255A1 (en) * 2004-10-12 2006-04-20 The Governors Of The University Of Alberta Pilot symbol assisted modulation signal processing systems and methods
EP1882309B1 (de) * 2005-05-10 2016-11-09 Qualcomm Incorporated Synchronisation einer basisstation über eine benutzervorrichtung mit mehreren kommunikationsmodi
US7599714B2 (en) * 2005-09-30 2009-10-06 Alcatel-Lucent Usa Inc. Increasing the range of access point cells for a given throughput in a downlink of a wireless local area network
CN100352178C (zh) * 2005-11-30 2007-11-28 中兴通讯股份有限公司 一种提高用户设备信道估计性能的方法
US8259854B2 (en) * 2006-04-13 2012-09-04 St-Ericsson Sa Channel estimation using common and dedicated pilots
EP2011312B1 (de) * 2006-04-18 2015-09-09 InterDigital Technology Corporation Verfahren und system zur sicherung drahtloser verbindungen
US8009777B2 (en) * 2007-06-15 2011-08-30 Icera, Inc. Processing data in a digital communications system
WO2009083978A2 (en) * 2007-12-31 2009-07-09 Mobilicom Ltd. Method, device and system of wireless communication
KR100973013B1 (ko) * 2008-12-22 2010-07-30 삼성전기주식회사 Ｏｆｄｍ 시스템의 샘플링 주파수 옵셋 추정 장치 및 그 방법
BR112012015587A2 (pt) 2009-12-23 2016-08-23 Interdigital Patent Holdings realização de medições em comunicações sem fio usando múltiplas portadoras.
CN102307165B (zh) * 2011-08-29 2015-04-22 北京邮电大学 一种信道参数估计方法和系统
US20150103932A1 (en) * 2012-03-02 2015-04-16 Nec Corporation Channel estimation method and receiver
US9294949B2 (en) * 2012-08-28 2016-03-22 Intel Deutschland Gmbh Interference and noise estimation of a communications channel
US9848428B2 (en) * 2013-08-27 2017-12-19 Telefonaktiebolaget Lm Ericsson (Publ) Positioning of wireless devices
US10608761B2 (en) 2014-12-16 2020-03-31 Telefonaktiebolaget Lm Ericsson (Publ) Methods and arrangements for CSI prediction
CN108234365B (zh) * 2018-02-26 2024-08-06 福建京奥通信技术有限公司 Wcdma中继器下行信道参数估计系统及方法
CN111954987B (zh) * 2018-04-12 2022-04-12 华为技术有限公司 信道协方差矩阵转换
US12452108B2 (en) * 2022-01-27 2025-10-21 Qualcomm Incorporated Equivariant generative prior for inverse problems with unknown rotation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
US6385185B1 (en) * 1998-06-25 2002-05-07 Lucent Technologies Inc. Methods and apparatus for coherent detection of signals with orthogonal data modulation
US6831943B1 (en) * 1999-08-13 2004-12-14 Texas Instruments Incorporated Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
US6839326B1 (en) * 2000-09-26 2005-01-04 Nokia Corporation Antenna phase estimation algorithm for WCDMA closed loop transmitter antenna diversity system
CN1145289C (zh) * 2001-02-28 2004-04-07 华为技术有限公司 无线通信系统中导频辅助判决反馈阵列接收机及其反馈方法
US7149258B2 (en) * 2001-11-28 2006-12-12 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimation of phase offset between communication channels

Also Published As

Publication number Publication date
WO2004040869A1 (en) 2004-05-13
EP1559251A1 (de) 2005-08-03
CN1708966A (zh) 2005-12-14
JP4440211B2 (ja) 2010-03-24
US8005159B2 (en) 2011-08-23
US20060023653A1 (en) 2006-02-02
AU2003267748A1 (en) 2004-05-25
CN1708966B (zh) 2013-07-10
EP1559251B1 (de) 2008-09-17
DE60323662D1 (de) 2008-10-30
JP2006505227A (ja) 2006-02-09

Similar Documents

Publication Publication Date Title
DE60323662D1 (de) Verfahren zur kanalschätzung in gegenwart von sendestrahlformung
ATE532302T1 (de) Kanalschätzung eines empfangenen mehrweg cdma- signals
EP1596502A3 (de) Apparat zur Schätzung der Rauschleistung, Verfahren zur Schätzung der Rauschleistung and Signaldetektor
JP5379156B2 (ja) 速度ベースのハイブリッド・パラメトリック／非パラメトリック等化
WO2004045096A3 (en) Noise and channel estimation using low spreading factors
ATE512513T1 (de) Sir-vorhersageverfahren und -vorrichtung
WO2004112295A3 (en) Method and apparatus for estimating carrier frequency offset and fading rate using autoregressive channel modeling
ATE497655T1 (de) System und verfahren zur iterativen eliminierung von mehrpfad-interferenzen
WO2007051206A3 (en) Method and apparatus for channel and noise estimation
EP1848122B8 (de) Funkgerät und störungsvermeidungsverfahren durch sendeleistungsregelung
WO2007024931A3 (en) Reverse link power control for an ofdma system
ATE298956T1 (de) Kanalschätzer mit variabler anzahl von abgriffen
WO2008094091A3 (en) Mmse channel estimation in a communications receiver
WO2008082748A3 (en) Network-assisted bts receiver performance optimization
DE602005009727D1 (de) Iterative vorwärts-rückwärts-schätzung
AU2003264129A1 (en) Assessment of delay estimation quality using interference estimates
WO2004038977A3 (en) Method and apparatus for block-based chip timing estimation in a code division multiple access communication system
CN101233698B (zh) 在闭环发送分集通信系统中测量信道质量的方法
WO2008126284A1 (ja) イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末
ATE421805T1 (de) Prozessor une verfahren zur gewichtsdetektion in einem w-cdma system mit geschlossener schleife und mehrwegdiversität
WO2002054637A3 (en) Sir estimation using delay time of power control commands
TW200729759A (en) Method of and apparatus for multi-path signal-component combining
ATE510390T1 (de) Mimo-/sendediversitätskanalschätzung
WO2004098087A3 (en) Methods and receivers that estimate multi-path delays by removing signal rays from a power-delay profile
TW200507550A (en) Communications channel estimation

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties
REN Ceased due to non-payment of the annual fee