CN1708966B - 在发射波束成形存在时用于信道估计的方法 - Google Patents
在发射波束成形存在时用于信道估计的方法 Download PDFInfo
- Publication number
- CN1708966B CN1708966B CN2003801025082A CN200380102508A CN1708966B CN 1708966 B CN1708966 B CN 1708966B CN 2003801025082 A CN2003801025082 A CN 2003801025082A CN 200380102508 A CN200380102508 A CN 200380102508A CN 1708966 B CN1708966 B CN 1708966B
- Authority
- CN
- China
- Prior art keywords
- channel
- logic channel
- cpich
- dpch
- estimation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 80
- 238000007493 shaping process Methods 0.000 claims description 41
- 238000001914 filtration Methods 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 20
- HUTDUHSNJYTCAR-UHFFFAOYSA-N ancymidol Chemical compound C1=CC(OC)=CC=C1C(O)(C=1C=NC=NC=1)C1CC1 HUTDUHSNJYTCAR-UHFFFAOYSA-N 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims 1
- 238000007476 Maximum Likelihood Methods 0.000 description 87
- 108010003272 Hyaluronate lyase Proteins 0.000 description 30
- 239000013598 vector Substances 0.000 description 27
- 230000006854 communication Effects 0.000 description 21
- 238000004891 communication Methods 0.000 description 20
- 238000004422 calculation algorithm Methods 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 13
- 238000012545 processing Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 230000004044 response Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 238000009795 derivation Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 101100381996 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) BRO1 gene Proteins 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013179 statistical model Methods 0.000 description 2
- 230000017105 transposition Effects 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 108010023321 Factor VII Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
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)
- Noise Elimination (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Radar Systems Or Details Thereof (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02292709.9 | 2002-10-30 | ||
EP02292709 | 2002-10-30 | ||
EP03290294.2 | 2003-02-05 | ||
EP03290294 | 2003-02-05 | ||
PCT/IB2003/004510 WO2004040869A1 (en) | 2002-10-30 | 2003-10-10 | Methods for channel estimation in the presence of transmit beamforming |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1708966A CN1708966A (zh) | 2005-12-14 |
CN1708966B true CN1708966B (zh) | 2013-07-10 |
Family
ID=32232210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2003801025082A Expired - Fee Related CN1708966B (zh) | 2002-10-30 | 2003-10-10 | 在发射波束成形存在时用于信道估计的方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8005159B2 (zh) |
EP (1) | EP1559251B1 (zh) |
JP (1) | JP4440211B2 (zh) |
CN (1) | CN1708966B (zh) |
AT (1) | ATE408950T1 (zh) |
AU (1) | AU2003267748A1 (zh) |
DE (1) | DE60323662D1 (zh) |
WO (1) | WO2004040869A1 (zh) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6970722B1 (en) * | 2002-08-22 | 2005-11-29 | Cisco Technology, Inc. | Array beamforming with wide nulls |
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 |
TWI325733B (en) * | 2005-05-10 | 2010-06-01 | Qualcomm Inc | Base station synchronization using multi-communication mode user equipment |
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 |
WO2007119207A2 (en) * | 2006-04-13 | 2007-10-25 | Nxp B.V. | Channel estimation using common and dedicated pilots |
EP2011312B1 (en) * | 2006-04-18 | 2015-09-09 | InterDigital Technology Corporation | Method and system for securing wireless communications |
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 |
WO2016095955A1 (en) * | 2014-12-16 | 2016-06-23 | 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 |
WO2019197030A1 (en) | 2018-04-12 | 2019-10-17 | Huawei Technologies Co., Ltd. | Channel covariance matrix conversion |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1191755A2 (en) * | 2000-09-26 | 2002-03-27 | Nokia Corporation | Antenna phase estimation algorithm for WCDMA closed loop transmitter antenna diversity system |
CN1372391A (zh) * | 2001-02-28 | 2002-10-02 | 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 |
Family Cites Families (4)
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 |
US7149258B2 (en) * | 2001-11-28 | 2006-12-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for estimation of phase offset between communication channels |
-
2003
- 2003-10-10 WO PCT/IB2003/004510 patent/WO2004040869A1/en active IP Right Grant
- 2003-10-10 AT AT03748443T patent/ATE408950T1/de not_active IP Right Cessation
- 2003-10-10 AU AU2003267748A patent/AU2003267748A1/en not_active Abandoned
- 2003-10-10 CN CN2003801025082A patent/CN1708966B/zh not_active Expired - Fee Related
- 2003-10-10 EP EP03748443A patent/EP1559251B1/en not_active Expired - Lifetime
- 2003-10-10 US US10/532,912 patent/US8005159B2/en not_active Expired - Fee Related
- 2003-10-10 JP JP2005501837A patent/JP4440211B2/ja not_active Expired - Fee Related
- 2003-10-10 DE DE60323662T patent/DE60323662D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1191755A2 (en) * | 2000-09-26 | 2002-03-27 | Nokia Corporation | Antenna phase estimation algorithm for WCDMA closed loop transmitter antenna diversity system |
CN1372391A (zh) * | 2001-02-28 | 2002-10-02 | 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 |
Non-Patent Citations (1)
Title |
---|
Proposal for user-specific beamforming for UTRA FDD.2001,第1页. * |
Also Published As
Publication number | Publication date |
---|---|
CN1708966A (zh) | 2005-12-14 |
AU2003267748A1 (en) | 2004-05-25 |
JP2006505227A (ja) | 2006-02-09 |
EP1559251A1 (en) | 2005-08-03 |
US20060023653A1 (en) | 2006-02-02 |
DE60323662D1 (de) | 2008-10-30 |
ATE408950T1 (de) | 2008-10-15 |
JP4440211B2 (ja) | 2010-03-24 |
US8005159B2 (en) | 2011-08-23 |
WO2004040869A1 (en) | 2004-05-13 |
EP1559251B1 (en) | 2008-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1708966B (zh) | 在发射波束成形存在时用于信道估计的方法 | |
CN1316754C (zh) | Rake接收机 | |
CN100474786C (zh) | 无线通信系统中用自适应算法调整组合器权重的方法和装置 | |
CN101056130B (zh) | 在无线接收机中进行信号处理的方法和系统 | |
EP1082820B1 (en) | Search window delay tracking in code division multiple access communication systems | |
CN102195924B (zh) | 对时变信道进行跟踪的方法和装置以及通信网络 | |
CN101494472B (zh) | 无线通信系统内对接收信号预测的系统和方法 | |
US7039135B2 (en) | Interference reduction using low complexity antenna array | |
US7356071B2 (en) | Method and apparatus for estimating signal-to-noise ratio based on dedicated physical channel pilot symbols | |
CN101036311B (zh) | 采用导频信号以及使用自适应滤波器的cdma无线系统 | |
US20080130674A1 (en) | Method and System For Multi-User Channel Estimation in Ds-Cdma Systems | |
JP2002530003A (ja) | Cdma移動局のための動作推定器 | |
CN1849793B (zh) | 无线通信设备中的无偏信号干扰比及其方法 | |
EP2162995B1 (en) | Method and apparatus for removing pilot channel amplitude dependencies from rake receiver output | |
CN101640659A (zh) | 处理通信信号的方法和系统 | |
WO2002019577A1 (en) | Rake receiver for cdma wireless communications | |
US8259854B2 (en) | Channel estimation using common and dedicated pilots | |
CN100593307C (zh) | 具有传输分集的系统的信道估计 | |
US20020173286A1 (en) | Radiocommunication employing selected synchronization technique | |
KR20000076706A (ko) | 라그랑제 다항식 보간법을 이용한 채널 왜곡의 보상 방법및 시스템 | |
KR100329110B1 (ko) | 칩 레벨 및 시간 기준 빔 형성 알고리즘을 적용한공간-시간 배열 수신시스템 | |
JP4502233B2 (ja) | レイク受信機におけるcdmaセルラ信号の合成方法 | |
CN103988444A (zh) | 非冗余均衡 | |
KR100558113B1 (ko) | 페이딩 적응형 공간-시간 배열 수신 시스템 및 그 방법 | |
CN101331688A (zh) | 具有码片级均衡的接收机 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: NXP CO., LTD. Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V. Effective date: 20070914 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20070914 Address after: Holland Ian Deho Finn Applicant after: NXP B.V. Address before: Holland Ian Deho Finn Applicant before: Koninklijke Philips Electronics N.V. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170426 Address after: Stockholm Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Stockholm Patentee before: Ericsson, Inc. Effective date of registration: 20170426 Address after: Stockholm Patentee after: Ericsson, Inc. Address before: Swiss Grand saconnex Patentee before: ST-ERICSSON S.A. Effective date of registration: 20170426 Address after: Swiss Grand saconnex Patentee after: ST-ERICSSON S.A. Address before: Swiss Prang Eli Ute Jean Deferre at No. 39 Patentee before: Italian-French Ericsson Limited (in liquidation) Effective date of registration: 20170426 Address after: Swiss Prang Eli Ute Jean Deferre at No. 39 Patentee after: Italian-French Ericsson Limited (in liquidation) Address before: Holland Ian Deho Finn Patentee before: NXP B.V. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20191010 |