BR0316316A - Estimativa de canal de complexidade reduzida para sistemas de comunicação sem fio - Google Patents
Estimativa de canal de complexidade reduzida para sistemas de comunicação sem fioInfo
- Publication number
- BR0316316A BR0316316A BR0316316-4A BR0316316A BR0316316A BR 0316316 A BR0316316 A BR 0316316A BR 0316316 A BR0316316 A BR 0316316A BR 0316316 A BR0316316 A BR 0316316A
- Authority
- BR
- Brazil
- Prior art keywords
- matrix
- vector
- dft
- estimate
- wireless communication
- Prior art date
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
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/223—Demodulation in the optical domain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
"ESTIMATIVA DE CANAL DE COMPLEXIDADE REDUZIDA PARA SISTEMAS DE COMUNICAçãO SEM FIO". Descreve-se de técnicas para derivar uma estimativa de canal utilizando-se um número de multiplicações complexas substancialmente menor que o utilizado por um método de força bruta para extrair a mesma estimativa de canal. Em um método, um vetor intermediário B é inicialmente extraído com base em K sub-vetores de um vetor H para uma estimativa de resposta de freq³ência de canal e pelo menos duas sub-matrizes DFT para uma matriz DFT W, onde K > 1. Uma matriz intermediária A para a matriz DFT W é também obtida. Uma estimativa de resposta de impulso de canal quadrada mínima é em seguida extraída com base no vetor intermediário B e na matriz intermediária A. Em uma implementação, o vetor intermediário B é obtido primeiro computando-se DFTs de uma matriz <sym>~ TXL~, que é formada com base no vetor <sym>, de modo a se prover uma matriz G~ LXL~. Os produtos internos entre as colunas de uma sub-matriz DFT base W~ 1~ e as linhas da matriz G~ LXL~ são então computados de modo a se obterem as entradas do vetor intermediário B.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42789602P | 2002-11-19 | 2002-11-19 | |
| US10/691,826 US7236535B2 (en) | 2002-11-19 | 2003-10-22 | Reduced complexity channel estimation for wireless communication systems |
| PCT/US2003/036232 WO2004047311A2 (en) | 2002-11-19 | 2003-11-12 | Reduced complexity channel estimation for wireless communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0316316A true BR0316316A (pt) | 2005-09-27 |
Family
ID=32329193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0316316-4A BR0316316A (pt) | 2002-11-19 | 2003-11-12 | Estimativa de canal de complexidade reduzida para sistemas de comunicação sem fio |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US7236535B2 (pt) |
| EP (1) | EP1568187A4 (pt) |
| JP (1) | JP4319144B2 (pt) |
| KR (1) | KR20050086718A (pt) |
| CN (1) | CN1714552B (pt) |
| AU (1) | AU2003290823A1 (pt) |
| BR (1) | BR0316316A (pt) |
| CA (1) | CA2506438A1 (pt) |
| IL (1) | IL168512A (pt) |
| TW (1) | TWI325236B (pt) |
| WO (1) | WO2004047311A2 (pt) |
Families Citing this family (92)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7236535B2 (en) * | 2002-11-19 | 2007-06-26 | Qualcomm Incorporated | Reduced complexity channel estimation for wireless communication systems |
| KR100483462B1 (ko) * | 2002-11-25 | 2005-04-14 | 삼성전자주식회사 | 고속 푸리에 변환 장치와, 이를 이용한 고속 푸리에 변환 방법 및 이를 갖는 직교 주파수 분할 다중 변조 방식의 수신장치 |
| US7068741B2 (en) * | 2003-09-30 | 2006-06-27 | Nokia Corporation | Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm |
| US7206354B2 (en) * | 2004-02-19 | 2007-04-17 | Qualcomm Incorporated | Calibration of downlink and uplink channel responses in a wireless MIMO communication system |
| US7296045B2 (en) * | 2004-06-10 | 2007-11-13 | Hasan Sehitoglu | Matrix-valued methods and apparatus for signal processing |
| CN1756248B (zh) * | 2004-09-29 | 2010-06-02 | 上海贝尔阿尔卡特股份有限公司 | 多入多出正交频分复用移动通信系统及信道估计方法 |
| WO2006049460A1 (en) * | 2004-11-04 | 2006-05-11 | Samsung Electronics Co., Ltd. | Apparatus and method for signal transmission and reception using downlink channel information in a sleep mode in a bwa communication system |
| US8135088B2 (en) * | 2005-03-07 | 2012-03-13 | Q1UALCOMM Incorporated | Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing |
| KR100922957B1 (ko) * | 2005-10-07 | 2009-10-23 | 삼성전자주식회사 | 다중입출력 통신시스템의 신호검출 장치 및 방법 |
| KR100747593B1 (ko) | 2005-12-09 | 2007-08-08 | 한국전자통신연구원 | 직교주파수분할다중 기반 무선랜 수신기의 채널 추정 장치및 그 방법 |
| WO2007103183A2 (en) * | 2006-03-01 | 2007-09-13 | Interdigital Technology Corporation | Method and apparatus for channel estimation in an orthogonal frequency division multiplexing system |
| US8259836B2 (en) * | 2006-12-04 | 2012-09-04 | Samsung Electronics Co., Ltd. | Method and system for generating candidate beamforming coefficients for transmission of data over a wireless medium |
| US8040856B2 (en) * | 2006-12-04 | 2011-10-18 | Samsung Electronics Co., Ltd. | System and method for wireless communication of uncompressed high definition video data using a beamforming acquisition protocol |
| US8265177B2 (en) * | 2006-12-04 | 2012-09-11 | Samsung Electronics Co., Ltd. | System and method for wireless communication of uncompressed high definition video data using beambook-constructed beamforming signals |
| WO2008140368A1 (en) * | 2007-05-09 | 2008-11-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Receiver for a radio network and an method for determining a channel estimate for a radio channel |
| US8385465B2 (en) * | 2008-03-29 | 2013-02-26 | Qualcomm Incorporated | Transmitter chain timing and transmit power control |
| WO2010028440A1 (en) * | 2008-09-10 | 2010-03-18 | Co-Operative Research Centre For Advanced Automotive Technology Ltd | Method and device for computing matrices for discrete fourier transform (dft) coefficients |
| US9942078B2 (en) * | 2009-05-29 | 2018-04-10 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Methods and apparatus for simultaneous estimation of frequency offset and channel response for MU-MIMO OFDMA |
| JP5384754B2 (ja) * | 2010-02-12 | 2014-01-08 | アルカテル−ルーセント | 相互関係誤差を校正するデバイスおよび方法 |
| US9288089B2 (en) | 2010-04-30 | 2016-03-15 | Ecole Polytechnique Federale De Lausanne (Epfl) | Orthogonal differential vector signaling |
| US9288082B1 (en) | 2010-05-20 | 2016-03-15 | Kandou Labs, S.A. | Circuits for efficient detection of vector signaling codes for chip-to-chip communication using sums of differences |
| US9251873B1 (en) | 2010-05-20 | 2016-02-02 | Kandou Labs, S.A. | Methods and systems for pin-efficient memory controller interface using vector signaling codes for chip-to-chip communications |
| US9077386B1 (en) | 2010-05-20 | 2015-07-07 | Kandou Labs, S.A. | Methods and systems for selection of unions of vector signaling codes for power and pin efficient chip-to-chip communication |
| CN105122758B (zh) | 2013-02-11 | 2018-07-10 | 康杜实验室公司 | 高带宽芯片间通信接口方法和系统 |
| KR102241045B1 (ko) | 2013-04-16 | 2021-04-19 | 칸도우 랩스 에스에이 | 고 대역폭 통신 인터페이스를 위한 방법 및 시스템 |
| WO2014210074A1 (en) | 2013-06-25 | 2014-12-31 | Kandou Labs SA | Vector signaling with reduced receiver complexity |
| JP2015073260A (ja) | 2013-09-04 | 2015-04-16 | 富士通株式会社 | 無線通信システム、及び、無線通信方法 |
| CN108494538B (zh) | 2013-11-19 | 2021-11-16 | 英特尔公司 | 无线局域网中用于多用户调度的方法、装置和计算机可读介质 |
| US9271241B2 (en) | 2013-11-19 | 2016-02-23 | Intel IP Corporation | Access point and methods for distinguishing HEW physical layer packets with backwards compatibility |
| US9325463B2 (en) | 2013-11-19 | 2016-04-26 | Intel IP Corporation | High-efficiency WLAN (HEW) master station and methods to increase information bits for HEW communication |
| US9544914B2 (en) | 2013-11-19 | 2017-01-10 | Intel IP Corporation | Master station and method for HEW communication using a transmission signaling structure for a HEW signal field |
| CN106464652B (zh) | 2013-11-19 | 2019-12-13 | 英特尔Ip公司 | 用于针对hew ofdma mu-mimo宽带信道操作具有信号字段配置的hew通信的主站和方法 |
| US9806761B1 (en) | 2014-01-31 | 2017-10-31 | Kandou Labs, S.A. | Methods and systems for reduction of nearest-neighbor crosstalk |
| CN110266615B (zh) | 2014-02-02 | 2022-04-29 | 康杜实验室公司 | 低isi比低功率芯片间通信方法和装置 |
| US9363114B2 (en) | 2014-02-28 | 2016-06-07 | Kandou Labs, S.A. | Clock-embedded vector signaling codes |
| TWI578838B (zh) * | 2014-04-01 | 2017-04-11 | 英特爾Ｉｐ公司 | 用於具有額外子載波的高效能（ｈｅ）通訊之無線設備 |
| US9680603B2 (en) | 2014-04-08 | 2017-06-13 | Intel IP Corporation | High-efficiency (HE) communication station and method for communicating longer duration OFDM symbols within 40 MHz and 80 MHz bandwidth |
| US9509437B2 (en) | 2014-05-13 | 2016-11-29 | Kandou Labs, S.A. | Vector signaling code with improved noise margin |
| US11240076B2 (en) | 2014-05-13 | 2022-02-01 | Kandou Labs, S.A. | Vector signaling code with improved noise margin |
| US9852806B2 (en) | 2014-06-20 | 2017-12-26 | Kandou Labs, S.A. | System for generating a test pattern to detect and isolate stuck faults for an interface using transition coding |
| US9112550B1 (en) | 2014-06-25 | 2015-08-18 | Kandou Labs, SA | Multilevel driver for high speed chip-to-chip communications |
| CN106797352B (zh) | 2014-07-10 | 2020-04-07 | 康杜实验室公司 | 高信噪特性向量信令码 |
| US9432082B2 (en) * | 2014-07-17 | 2016-08-30 | Kandou Labs, S.A. | Bus reversable orthogonal differential vector signaling codes |
| KR101943048B1 (ko) | 2014-07-21 | 2019-01-28 | 칸도우 랩스 에스에이 | 다분기 데이터 전송 |
| EP3175592B1 (en) | 2014-08-01 | 2021-12-29 | Kandou Labs S.A. | Orthogonal differential vector signaling codes with embedded clock |
| US9674014B2 (en) | 2014-10-22 | 2017-06-06 | Kandou Labs, S.A. | Method and apparatus for high speed chip-to-chip communications |
| US10009916B2 (en) * | 2014-12-23 | 2018-06-26 | Intel Corporation | Communication device and method for processing received signals |
| WO2016210445A1 (en) | 2015-06-26 | 2016-12-29 | Kandou Labs, S.A. | High speed communications system |
| CN105141556A (zh) * | 2015-08-11 | 2015-12-09 | 上海斐讯数据通信技术有限公司 | 超宽带信道估计方法及装置 |
| US10055372B2 (en) | 2015-11-25 | 2018-08-21 | Kandou Labs, S.A. | Orthogonal differential vector signaling codes with embedded clock |
| US10003315B2 (en) | 2016-01-25 | 2018-06-19 | Kandou Labs S.A. | Voltage sampler driver with enhanced high-frequency gain |
| CN109314518B (zh) | 2016-04-22 | 2022-07-29 | 康杜实验室公司 | 高性能锁相环 |
| WO2017185070A1 (en) | 2016-04-22 | 2017-10-26 | Kandou Labs, S.A. | Calibration apparatus and method for sampler with adjustable high frequency gain |
| US10003454B2 (en) | 2016-04-22 | 2018-06-19 | Kandou Labs, S.A. | Sampler with low input kickback |
| US10056903B2 (en) | 2016-04-28 | 2018-08-21 | Kandou Labs, S.A. | Low power multilevel driver |
| US10333741B2 (en) | 2016-04-28 | 2019-06-25 | Kandou Labs, S.A. | Vector signaling codes for densely-routed wire groups |
| US10193716B2 (en) | 2016-04-28 | 2019-01-29 | Kandou Labs, S.A. | Clock data recovery with decision feedback equalization |
| US10153591B2 (en) | 2016-04-28 | 2018-12-11 | Kandou Labs, S.A. | Skew-resistant multi-wire channel |
| US9906358B1 (en) | 2016-08-31 | 2018-02-27 | Kandou Labs, S.A. | Lock detector for phase lock loop |
| US10200188B2 (en) | 2016-10-21 | 2019-02-05 | Kandou Labs, S.A. | Quadrature and duty cycle error correction in matrix phase lock loop |
| US10372665B2 (en) | 2016-10-24 | 2019-08-06 | Kandou Labs, S.A. | Multiphase data receiver with distributed DFE |
| US10200218B2 (en) | 2016-10-24 | 2019-02-05 | Kandou Labs, S.A. | Multi-stage sampler with increased gain |
| CN108664447B (zh) * | 2017-03-31 | 2022-05-17 | 华为技术有限公司 | 一种矩阵与矢量的乘法运算方法及装置 |
| CN110741562B (zh) | 2017-04-14 | 2022-11-04 | 康杜实验室公司 | 向量信令码信道的流水线式前向纠错 |
| CN110945830B (zh) | 2017-05-22 | 2022-09-09 | 康杜实验室公司 | 多模式数据驱动型时钟恢复电路 |
| US10116468B1 (en) | 2017-06-28 | 2018-10-30 | Kandou Labs, S.A. | Low power chip-to-chip bidirectional communications |
| US10693587B2 (en) | 2017-07-10 | 2020-06-23 | Kandou Labs, S.A. | Multi-wire permuted forward error correction |
| US10203226B1 (en) | 2017-08-11 | 2019-02-12 | Kandou Labs, S.A. | Phase interpolation circuit |
| US10467177B2 (en) | 2017-12-08 | 2019-11-05 | Kandou Labs, S.A. | High speed memory interface |
| US10326623B1 (en) | 2017-12-08 | 2019-06-18 | Kandou Labs, S.A. | Methods and systems for providing multi-stage distributed decision feedback equalization |
| KR102498475B1 (ko) | 2017-12-28 | 2023-02-09 | 칸도우 랩스 에스에이 | 동기식으로 스위칭된 다중 입력 복조 비교기 |
| US10554380B2 (en) | 2018-01-26 | 2020-02-04 | Kandou Labs, S.A. | Dynamically weighted exclusive or gate having weighted output segments for phase detection and phase interpolation |
| US10812216B2 (en) | 2018-11-05 | 2020-10-20 | XCOM Labs, Inc. | Cooperative multiple-input multiple-output downlink scheduling |
| US10756860B2 (en) | 2018-11-05 | 2020-08-25 | XCOM Labs, Inc. | Distributed multiple-input multiple-output downlink configuration |
| US10659112B1 (en) | 2018-11-05 | 2020-05-19 | XCOM Labs, Inc. | User equipment assisted multiple-input multiple-output downlink configuration |
| US10432272B1 (en) | 2018-11-05 | 2019-10-01 | XCOM Labs, Inc. | Variable multiple-input multiple-output downlink user equipment |
| CN113169764A (zh) | 2018-11-27 | 2021-07-23 | 艾斯康实验室公司 | 非相干协作式多输入多输出通信 |
| US10756795B2 (en) | 2018-12-18 | 2020-08-25 | XCOM Labs, Inc. | User equipment with cellular link and peer-to-peer link |
| US11063645B2 (en) | 2018-12-18 | 2021-07-13 | XCOM Labs, Inc. | Methods of wirelessly communicating with a group of devices |
| US11330649B2 (en) | 2019-01-25 | 2022-05-10 | XCOM Labs, Inc. | Methods and systems of multi-link peer-to-peer communications |
| US10756767B1 (en) | 2019-02-05 | 2020-08-25 | XCOM Labs, Inc. | User equipment for wirelessly communicating cellular signal with another user equipment |
| US11032841B2 (en) | 2019-04-26 | 2021-06-08 | XCOM Labs, Inc. | Downlink active set management for multiple-input multiple-output communications |
| US10756782B1 (en) | 2019-04-26 | 2020-08-25 | XCOM Labs, Inc. | Uplink active set management for multiple-input multiple-output communications |
| US10735057B1 (en) | 2019-04-29 | 2020-08-04 | XCOM Labs, Inc. | Uplink user equipment selection |
| US10686502B1 (en) | 2019-04-29 | 2020-06-16 | XCOM Labs, Inc. | Downlink user equipment selection |
| US11411778B2 (en) | 2019-07-12 | 2022-08-09 | XCOM Labs, Inc. | Time-division duplex multiple input multiple output calibration |
| US11411779B2 (en) | 2020-03-31 | 2022-08-09 | XCOM Labs, Inc. | Reference signal channel estimation |
| US12088499B2 (en) | 2020-04-15 | 2024-09-10 | Virewirx, Inc. | System and method for reducing data packet processing false alarms |
| CA3178604A1 (en) | 2020-05-26 | 2021-12-02 | XCOM Labs, Inc. | Interference-aware beamforming |
| CA3195885A1 (en) | 2020-10-19 | 2022-04-28 | XCOM Labs, Inc. | Reference signal for wireless communication systems |
| WO2022093988A1 (en) | 2020-10-30 | 2022-05-05 | XCOM Labs, Inc. | Clustering and/or rate selection in multiple-input multiple-output communication systems |
| US11831472B1 (en) | 2022-08-30 | 2023-11-28 | Kandou Labs SA | Pre-scaler for orthogonal differential vector signalling |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6141393A (en) | 1999-03-03 | 2000-10-31 | Motorola, Inc. | Method and device for channel estimation, equalization, and interference suppression |
| US6445342B1 (en) | 2000-06-30 | 2002-09-03 | Motorola, Inc. | Method and device for multi-user frequency-domain channel estimation |
| US6839727B2 (en) * | 2001-05-01 | 2005-01-04 | Sun Microsystems, Inc. | System and method for computing a discrete transform |
| IL145245A0 (en) * | 2001-09-03 | 2002-06-30 | Jtc 2000 Dev Delaware Inc | System and method including vector-matrix multiplication |
| US7039001B2 (en) * | 2002-10-29 | 2006-05-02 | Qualcomm, Incorporated | Channel estimation for OFDM communication systems |
| US7236535B2 (en) * | 2002-11-19 | 2007-06-26 | Qualcomm Incorporated | Reduced complexity channel estimation for wireless communication systems |
| US7079870B2 (en) * | 2003-06-09 | 2006-07-18 | Ipr Licensing, Inc. | Compensation techniques for group delay effects in transmit beamforming radio communication |
-
2003
- 2003-10-22 US US10/691,826 patent/US7236535B2/en not_active Expired - Fee Related
- 2003-11-12 WO PCT/US2003/036232 patent/WO2004047311A2/en active Application Filing
- 2003-11-12 CN CN2003801036496A patent/CN1714552B/zh not_active Expired - Fee Related
- 2003-11-12 CA CA002506438A patent/CA2506438A1/en not_active Abandoned
- 2003-11-12 JP JP2004553623A patent/JP4319144B2/ja not_active Expired - Fee Related
- 2003-11-12 AU AU2003290823A patent/AU2003290823A1/en not_active Abandoned
- 2003-11-12 BR BR0316316-4A patent/BR0316316A/pt not_active IP Right Cessation
- 2003-11-12 KR KR1020057008913A patent/KR20050086718A/ko active IP Right Grant
- 2003-11-12 EP EP03783407A patent/EP1568187A4/en not_active Withdrawn
- 2003-11-17 TW TW092132146A patent/TWI325236B/zh not_active IP Right Cessation
-
2005
- 2005-05-10 IL IL168512A patent/IL168512A/en not_active IP Right Cessation
-
2007
- 2007-05-16 US US11/749,523 patent/US7477693B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US7477693B2 (en) | 2009-01-13 |
| WO2004047311A2 (en) | 2004-06-03 |
| CA2506438A1 (en) | 2004-06-03 |
| IL168512A (en) | 2010-11-30 |
| US7236535B2 (en) | 2007-06-26 |
| CN1714552A (zh) | 2005-12-28 |
| US20040146117A1 (en) | 2004-07-29 |
| JP2006506906A (ja) | 2006-02-23 |
| AU2003290823A1 (en) | 2004-06-15 |
| TW200423554A (en) | 2004-11-01 |
| EP1568187A2 (en) | 2005-08-31 |
| TWI325236B (en) | 2010-05-21 |
| CN1714552B (zh) | 2010-05-26 |
| WO2004047311A3 (en) | 2004-08-19 |
| JP4319144B2 (ja) | 2009-08-26 |
| EP1568187A4 (en) | 2011-05-18 |
| KR20050086718A (ko) | 2005-08-30 |
| US20070211811A1 (en) | 2007-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0316316A (pt) | Estimativa de canal de complexidade reduzida para sistemas de comunicação sem fio | |
| Pan et al. | Small‐sample adjustments in using the sandwich variance estimator in generalized estimating equations | |
| EP3691401A3 (en) | Network assisted connection setup and release | |
| BR112019008794A2 (pt) | método e aparelho de comunicações sem fio | |
| WO2005101236A3 (en) | Lexical association metric for knowledge-free extraction of phrasal terms | |
| TW200736942A (en) | Parallel multi-rate circuit simulation | |
| WO2007050838A3 (en) | Remaining set management in a wireless communication system | |
| WO2001061526A3 (en) | Signal processing technique | |
| MY149197A (en) | Ranking functions using document usage statistics | |
| WO2005036591A3 (en) | System and method for using first-principles simulation to facilitate a semiconductor manufacturing process | |
| ATE394638T1 (de) | Verfahren zum einsetzen eines isolierungssytems in einen zwischenraum | |
| WO2007070656A3 (en) | System and method for revenue and expense realignment | |
| EP4068630A4 (en) | CLOCK AND LOCK GENERATION CIRCUIT USING THE SAME, AND COMPUTER DEVICE | |
| DE60127856D1 (de) | Kombinierte least-square-synchronisierung, kanalschätzung und rauschschätzung | |
| Berwal et al. | Solution of differential equations based on Haar operational matrix | |
| Yang et al. | Empirical likelihood for semiparametric varying coefficient partially linear models with longitudinal data | |
| Sekar et al. | Numerical Analysis of Different Second Order Systems Using Adomian Decomposition Method | |
| TW200500880A (en) | Method and apparatus for model-order reduction and sensitivity analysis | |
| Wang | The global existence of solutions for a cross-diffusion system | |
| Wazwaz | Integrability of two coupled Kadomtsev–Petviashvili equations | |
| SE542201C2 (en) | Method for determining a distance between two nodes | |
| Kilic et al. | Some double binomial sums related with the Fibonacci, Pell and generalized order-k Fibonacci numbers | |
| Omic et al. | Virus spread in complete bi-partite graphs | |
| Calahan et al. | Eigenvalue methods for sparse matrices | |
| CN108304604A (zh) | 对随机过程建模的设备和方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08L | Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette] |
Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 9A E 10A ANUIDADES. |
|
| B08I | Publication cancelled [chapter 8.9 patent gazette] |
Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2257 DE 08/04/2014 POR TER SIDO INDEVIDA. |
|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES. |
|
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |