Nothing Special   »   [go: up one dir, main page]

BR9812816A - Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma - Google Patents

Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma

Info

Publication number
BR9812816A
BR9812816A BR9812816-7A BR9812816A BR9812816A BR 9812816 A BR9812816 A BR 9812816A BR 9812816 A BR9812816 A BR 9812816A BR 9812816 A BR9812816 A BR 9812816A
Authority
BR
Brazil
Prior art keywords
base station
wireless communication
cdma
link
mobile unit
Prior art date
Application number
BR9812816-7A
Other languages
English (en)
Inventor
Shimon B Scherzer
Original Assignee
Adaptive Telecom 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
Priority claimed from US08/929,638 external-priority patent/US6108565A/en
Application filed by Adaptive Telecom Inc filed Critical Adaptive Telecom Inc
Priority claimed from PCT/US1998/019299 external-priority patent/WO1999014870A2/en
Publication of BR9812816A publication Critical patent/BR9812816A/pt

Links

Classifications

    • 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
    • H04B7/0891—Space-time diversity
    • H04B7/0897—Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

"PROCESSOS PARA COMUNICAçãO SEM FIO, E PARA EFICIENTEMENTE DETERMINAR NA ESTAçãO BASE UM CANAL ESPACIAL DA UNIDADE MóVEL EM UM SISTEMA DE COMUNICAçãO SEM FIO, E, ESTAçãO BASE DE CDMA". Um modo prático para intensificar qualidade de sinal (portadora para interferência C/I) em ambas ligação superior e ligação inferior de serviço CDMA de ponto a multiponto sem fio implementa direção de rádio básico encontrando técnicas para permitir combinação de diversidade ótima em um arranjo de antena empregando grande número de elementos. Esta abordagem é facilitada através do uso de aritmética de contagens de muito pequenos bits e capitalizando na estrutura de sinal de alfabeto finito (símbolos de Walsh, por exemplo, em CDMA IS-95) ou uma seq³ência de sucessão conhecida. Implementações alternativas podem usar representações de dados de ponto flutuante. O processo facilita implementação de ASIC, por esse meio permitindo processamento distribuído para obter a praticidade de computação requerida. O processo utiliza os dados de canal de ligação superior para determinar a estrutura espacial de ligação inferior (feixes de arranjo) para intensificar C/I de ligação inferior e portanto aumentar capacidade de ligação inferior. A concretização preferida é otimizada para IS-95, entretanto qualquer sinal que tenha tanto um alfabeto finito ou uma seq³ência de sucessão construída pode utilizar a mesma idéia. O uso de estrutura de sinal conhecida facilita determinação de vetor de resposta de arranjo simples e elimina a necessidade de cálculo e análise de matriz de covariância. Portanto, esta abordagem pode se utilizada para interfaces de ar sem fio GSM E TDMA igualmente.
BR9812816-7A 1997-09-15 1998-09-15 Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma BR9812816A (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/929,638 US6108565A (en) 1997-09-15 1997-09-15 Practical space-time radio method for CDMA communication capacity enhancement
US7147398P 1998-01-13 1998-01-13
US7797998P 1998-03-13 1998-03-13
US9315098P 1998-07-17 1998-07-17
PCT/US1998/019299 WO1999014870A2 (en) 1997-09-15 1998-09-15 Practical space-time radio method for cdma communication capacity enhancement

Publications (1)

Publication Number Publication Date
BR9812816A true BR9812816A (pt) 2000-08-08

Family

ID=27490905

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9812816-7A BR9812816A (pt) 1997-09-15 1998-09-15 Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma

Country Status (2)

Country Link
US (1) US6347234B1 (pt)
BR (1) BR9812816A (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112019280A (zh) * 2020-08-25 2020-12-01 安徽蓝煜电子科技有限公司 一种智能天线网络校准方法

Families Citing this family (138)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760603B1 (en) 1997-09-15 2004-07-06 Kathrein-Werke Kg Compact dual-polarized adaptive antenna array communication method and apparatus
EP0929172B1 (en) * 1998-01-06 2010-06-02 MOSAID Technologies Inc. Multicarrier modulation system, with variable symbol rates
US6563858B1 (en) * 1998-01-16 2003-05-13 Intersil Americas Inc. Method of performing antenna diversity in spread spectrum in wireless local area network
US7440498B2 (en) 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
ES2389626T3 (es) 1998-04-03 2012-10-29 Tellabs Operations, Inc. Filtro para acortamiento de respuesta al impulso, con restricciones espectrales adicionales, para transmisión de múltiples portadoras
US6795424B1 (en) * 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
US6542485B1 (en) * 1998-11-25 2003-04-01 Lucent Technologies Inc. Methods and apparatus for wireless communication using time division duplex time-slotted CDMA
JP4181259B2 (ja) * 1998-12-14 2008-11-12 松下電器産業株式会社 受信装置及び受信方法
US6615240B1 (en) * 1998-12-18 2003-09-02 Motive Communications, Inc. Technical support chain automation with guided self-help capability and option to escalate to live help
DE50007132D1 (de) * 1999-03-25 2004-08-26 Siemens Ag Verfahren zur regelung der sendeleistung in einem mobilfunksystem und entsprechendes mobilfunksystem
JP2000295152A (ja) * 1999-04-01 2000-10-20 Matsushita Electric Ind Co Ltd アレーアンテナ無線通信装置
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
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
US6278726B1 (en) * 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum communication system
US6115406A (en) * 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
KR100495758B1 (ko) * 1999-09-21 2005-06-16 인터디지탈 테크날러지 코포레이션 가변 확산 인자용 멀티유저 검출기
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
US6519452B1 (en) * 1999-10-01 2003-02-11 Nortel Networks Limited Method and system for optimizing wireless communication system performance
US6798737B1 (en) * 1999-10-06 2004-09-28 Texas Instruments Incorporated Use of Walsh-Hadamard transform for forward link multiuser detection in CDMA systems
US7039441B1 (en) * 1999-10-19 2006-05-02 Kathrein-Werke Kg High speed fixed wireless voice/data systems and methods
US7236807B1 (en) 1999-10-28 2007-06-26 Celletra Ltd. Cellular base station augmentation
US6901062B2 (en) * 1999-12-01 2005-05-31 Kathrein-Werke Kg Adaptive antenna array wireless data access point
US6611695B1 (en) 1999-12-20 2003-08-26 Nortel Networks Limited Method and apparatus for assigning frequency channels to a beam in a multi-beam cellular communications system
KR20030004326A (ko) * 2000-01-27 2003-01-14 셀레트라 리미티드 셀룰러기지국 증강시스템 및 방법
FR2810456B1 (fr) * 2000-06-20 2005-02-11 Mitsubishi Electric Inf Tech Dispositif d'antenne reconfigurable pour station de telecommunication
US6701165B1 (en) * 2000-06-21 2004-03-02 Agere Systems Inc. Method and apparatus for reducing interference in non-stationary subscriber radio units using flexible beam selection
JP3699883B2 (ja) * 2000-06-29 2005-09-28 松下電器産業株式会社 無線基地局装置及び無線通信方法
GB0018859D0 (en) * 2000-08-01 2000-09-20 Fujitsu Ltd Apparatus for and method of receiving a transmission signal
US6895258B1 (en) 2000-08-14 2005-05-17 Kathrein-Werke Kg Space division multiple access strategy for data service
US6564036B1 (en) * 2000-09-29 2003-05-13 Arraycomm, Inc. Mode switching in adaptive array communications systems
US7043259B1 (en) 2000-09-29 2006-05-09 Arraycomm, Inc. Repetitive paging from a wireless data base station having a smart antenna system
US7085240B2 (en) * 2000-10-03 2006-08-01 Kathrein-Werke Kg Directed maximum ratio combining and scheduling of high rate transmission for data networks
KR100383669B1 (ko) * 2000-10-12 2003-05-14 한국전자통신연구원 배열 안테나를 이용하는 코드분할다중접속 기지국시스템의 동기 획득장치 및 방법
US6907270B1 (en) * 2000-10-23 2005-06-14 Qualcomm Inc. Method and apparatus for reduced rank channel estimation in a communications system
US7054292B2 (en) * 2000-10-27 2006-05-30 L-3 Communications Corporation Hybrid synchronous space/code multiple access system using an adaptive antenna system
US6956838B2 (en) * 2000-10-27 2005-10-18 L-3 Communications Corporation Use of wide element spacing to improve the flexibility of a circular base station antenna array in a space division/multiple access synchronous CDMA communication system
DE60107797T2 (de) * 2000-10-31 2005-06-09 Kabushiki Kaisha Toshiba Drahtloses Kommunikationssystem, Anordnung für Gewichtungssteuerung, und Erzeugungsverfahren des Gewichtsvektors
US7769078B2 (en) * 2000-12-22 2010-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver
US6801790B2 (en) * 2001-01-17 2004-10-05 Lucent Technologies Inc. Structure for multiple antenna configurations
JP3973371B2 (ja) * 2001-03-21 2007-09-12 三洋電機株式会社 無線基地システムおよび指向性制御方法
WO2002079758A1 (en) * 2001-03-29 2002-10-10 Circadiant Systems, Inc. Error function analysis of optical components with uncertainty ranges
US6483459B1 (en) * 2001-04-05 2002-11-19 Neoreach, Inc. Direction of arrival angle tracking algorithm for smart antennas
EP1393498B1 (en) * 2001-05-17 2011-01-05 Alcatel Lucent Distributed shared memory packet switch
TW535369B (en) * 2001-07-04 2003-06-01 Benq Corp Apparatus and method of estimating angle of arrival with multi-path interference suppressing unit
CN1161907C (zh) * 2001-07-20 2004-08-11 华为技术有限公司 无线通信系统下行反馈多天线发射方法与装置
KR100437531B1 (ko) * 2001-09-24 2004-06-30 엘지전자 주식회사 에이티엠 교환기의 고속 셀 정합 장치
JP3746983B2 (ja) * 2001-10-25 2006-02-22 京セラ株式会社 移動通信端末、及びそのアレーアンテナ指向性制御方法
US7173992B2 (en) * 2001-12-11 2007-02-06 Sasken Communication Technologies Limited Method for synchronization in wireless systems using receive diversity
RU2237379C2 (ru) * 2002-02-08 2004-09-27 Самсунг Электроникс Способ формирования диаграммы направленности адаптивной антенной решетки базовой станции и устройство для его реализации (варианты)
WO2003069832A1 (de) * 2002-02-13 2003-08-21 Siemens Aktiengesellschaft Methode zum beamforming eines mehrnutzempfängers mit kanalschätzung
EP1337064A1 (de) * 2002-02-13 2003-08-20 Siemens Aktiengesellschaft Methode zum Beamforming eines Mehrnutzerempfängers mit Kanalschätzung
TWI581121B (zh) 2002-05-01 2017-05-01 內數位科技公司 無線通信系統中使用高速共享頻道之點對多點服務
CN101772178B (zh) * 2002-05-01 2013-12-18 美商内数位科技公司 用于传输服务数据的方法以及所使用的基站和用户设备
JP3895228B2 (ja) * 2002-05-07 2007-03-22 松下電器産業株式会社 無線通信装置および到来方向推定方法
KR100689399B1 (ko) * 2002-05-17 2007-03-08 삼성전자주식회사 이동통신시스템에서 스마트 안테나의 순방향 송신빔 형성장치 및 방법
WO2003107540A2 (en) * 2002-06-14 2003-12-24 Celletra Ltd. Transmit diversity for base stations
US7206554B1 (en) 2002-06-28 2007-04-17 Arraycomm Llc Transmit diversity with formed beams in a wireless communications system using a common pilot channel
US8861466B2 (en) 2002-08-07 2014-10-14 Interdigital Technology Corporation Mobile communication system and method for providing common channel coverage using beamforming antennas
US8213994B2 (en) * 2002-08-07 2012-07-03 Interdigital Technology Corporation Mobile communications system and method for providing common channel coverage using beamforming antennas
TWI252644B (en) * 2002-08-07 2006-04-01 Interdigital Tech Corp Closed loop transmit diversity of point to multipoint physical channels
DE60313336T2 (de) * 2002-08-21 2008-04-10 Zyray Wireless, Inc., San Diego Antennengruppe mit virtuellen antennenelementen und zugehörige methode
US8457230B2 (en) 2002-08-21 2013-06-04 Broadcom Corporation Reconfigurable orthogonal frequency division multiplexing (OFDM) chip supporting single weight diversity
TWI240581B (en) * 2002-09-27 2005-09-21 Interdigital Tech Corp Mobile communications system and method for providing mobile unit handover in wireless communication systems that employ beamforming antennas
JP4309110B2 (ja) * 2002-09-27 2009-08-05 パナソニック株式会社 適応アンテナ無線通信装置
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7161973B2 (en) * 2002-12-17 2007-01-09 Sbc Properties, L.P. Pilot aided adaptive minimum mean square interference cancellation and detection
CN100492937C (zh) * 2002-12-27 2009-05-27 Nxp股份有限公司 具有多天线的移动终端及其方法
US7310379B2 (en) * 2002-12-30 2007-12-18 Motorola, Inc. Polarization state techniques for wireless communications
US7933343B2 (en) * 2002-12-30 2011-04-26 Motorola Mobility, Inc. Enhanced OFDM by use of alternating polarization states
US7280467B2 (en) * 2003-01-07 2007-10-09 Qualcomm Incorporated Pilot transmission schemes for wireless multi-carrier communication systems
KR100571862B1 (ko) * 2003-02-17 2006-04-17 삼성전자주식회사 다중 안테나를 포함하는 이동통신 시스템 및 그 방법
DE10340397A1 (de) * 2003-09-02 2005-04-07 Siemens Ag §erfahren zum Übertragen von Signalen in einem Funkkommunikationssystem sowie entsprechende Sendestation und Empfangsstation
US7453946B2 (en) * 2003-09-03 2008-11-18 Intel Corporation Communication system and method for channel estimation and beamforming using a multi-element array antenna
US7333787B2 (en) * 2003-09-22 2008-02-19 Tarang Luthra Reducing interference in high speed home network using signal processing
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7720042B2 (en) * 2004-04-02 2010-05-18 Lg Electronics Inc. Method for transmitting and receiving data signal in MIMO system
US6990324B2 (en) * 2004-04-15 2006-01-24 Flarion Technologies, Inc. Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier
US7444127B2 (en) * 2004-04-15 2008-10-28 Qualcomm Incorporated Methods and apparatus for selecting between multiple carriers using a receiver with multiple receiver chains
US7453912B2 (en) * 2004-04-15 2008-11-18 Qualcomm Incorporated Methods and apparatus for selecting between multiple carriers based on signal energy measurements
WO2006004462A1 (en) 2004-06-30 2006-01-12 Telefonaktiebolaget Lm Ericsson (Publ) Data processing in intra-site handover
EP1772034B1 (en) * 2004-06-30 2015-08-12 Telefonaktiebolaget L M Ericsson (publ) Antenna beam shape optimization
US7525926B2 (en) * 2004-08-02 2009-04-28 Atheros Communications, Inc. Wireless communication using beam forming and diversity
US7620019B1 (en) * 2004-08-27 2009-11-17 Nortel Networks Limited Space division multiple access scheduling
US8179834B2 (en) * 2004-11-19 2012-05-15 Samsung Electronics Co., Ltd. Method and apparatus for adapting downlink wireless transmission between beamforming and transmit diversity on a per mobile station basis
KR100689421B1 (ko) * 2004-12-31 2007-03-08 삼성전자주식회사 무선 통신 시스템에서 이동국 방향을 추정하는 기지국안테나 시스템 및 방법
US7548764B2 (en) * 2005-03-04 2009-06-16 Cisco Technology, Inc. Method and system for generating multiple radiation patterns using transform matrix
US7466749B2 (en) * 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US7414580B2 (en) * 2005-06-09 2008-08-19 Go Networks, Inc. Method and corresponding device for joint signal detection and direction of arrival estimation
US20070002980A1 (en) * 2005-06-29 2007-01-04 Eyal Krupka Method for timing and sequence hypotheses selection
US7598910B2 (en) * 2005-07-06 2009-10-06 Herrick Technology Labs Inc. Direction finding and mapping in multipath environments
US20080285686A1 (en) * 2005-07-29 2008-11-20 Norman Beaulieu Antenna Selection Apparatus and Methods
WO2007037151A1 (ja) * 2005-09-28 2007-04-05 Nec Corporation 移動機、移動通信システム及びアンテナベリフィケーション方法
US7680078B2 (en) * 2005-12-28 2010-03-16 Intel Corporation System, apparatus and method of scheduling transmissions
US7933314B2 (en) * 2006-06-22 2011-04-26 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for communication receiver despreading resource management
US8326339B2 (en) 2006-08-04 2012-12-04 Broadcom Corporation Method and apparatus to compute a noise power estimate in a WCDMA network
JP5186748B2 (ja) * 2006-09-29 2013-04-24 富士通株式会社 無線通信装置および無線通信方法
CN100466774C (zh) * 2007-05-18 2009-03-04 华为技术有限公司 一种扇区化基站
US8542762B2 (en) * 2007-11-05 2013-09-24 Cisco Technology, Inc. Bi-directional beamforming multiple-input multiple-output wireless communication
JP5490016B2 (ja) * 2007-12-20 2014-05-14 インターナショナル・ビジネス・マシーンズ・コーポレーション 所与の領域内に含まれるｒｆｉｄタグ付き商品を決定するためのシステム、方法、およびコンピュータ・プログラム（システムおよび方法）
ATE474382T1 (de) * 2008-05-16 2010-07-15 Alcatel Lucent Halbstatisches strahlbildungsverfahren und vorrichtung
US8315341B2 (en) * 2008-06-06 2012-11-20 Maxim Integrated Products, Inc. Soft repetition code combiner using channel state information
US8472576B2 (en) * 2008-06-06 2013-06-25 Maxim Integrated Products, Inc. Jammer canceller for power-line communication
US8284825B2 (en) * 2008-06-06 2012-10-09 Maxim Integrated Products, Inc. Blind channel quality estimator
US8139614B2 (en) * 2008-06-06 2012-03-20 Maxim Integrated Products, Inc. Robust narrowband symbol and frame synchronizer for power-line communication
US8315152B2 (en) 2008-06-06 2012-11-20 Maxim Integrated Products, Inc. System and method for applying multi-tone OFDM based communications within a prescribed frequency range
US8165172B2 (en) * 2008-06-06 2012-04-24 Maxim Integrated Products, Inc. Robust wideband symbol and frame synchronizer for power-line communication
US8149967B2 (en) * 2008-06-06 2012-04-03 Maxim Integrated Products, Inc. Combined dual feed-forward and feedback analog and digital automatic gain control for broadband communication
US8276025B2 (en) * 2008-06-06 2012-09-25 Maxim Integrated Products, Inc. Block interleaving scheme with configurable size to achieve time and frequency diversity
KR101098592B1 (ko) * 2009-04-13 2011-12-23 엘지전자 주식회사 무선 통신 시스템상에서 점대다 서비스를 수신하는 방법
US8320233B2 (en) * 2009-06-12 2012-11-27 Maxim Integrated Products, Inc. Transmitter and method for applying multi-tone OFDM based communications within a lower frequency range
US9173191B2 (en) 2009-12-20 2015-10-27 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
US8374154B2 (en) * 2009-12-23 2013-02-12 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
US8780826B2 (en) * 2010-01-12 2014-07-15 Qualcomm Incorporated Continuous CDM/FDM structure for LTE uplink data
US8891438B2 (en) * 2010-09-08 2014-11-18 Intel Corporation Packet-data network and methods for RAN-agnostic multimedia content distribution
GB2484703A (en) * 2010-10-21 2012-04-25 Bluwireless Tech Ltd Antenna array beam directing method and apparatus
US8737506B1 (en) * 2010-12-29 2014-05-27 Sprint Communications Company L.P. Determination of transmit diversity transmission delays
US9689955B2 (en) * 2011-02-24 2017-06-27 Corvus Technologies Corp Ranging system using active radio frequency (RF) nodes
US8976713B2 (en) * 2011-08-02 2015-03-10 Electronics And Telecommunications Research Institute Method and apparatus for performing transmission and reception simultaneously in same frequency band
US8422540B1 (en) 2012-06-21 2013-04-16 CBF Networks, Inc. Intelligent backhaul radio with zero division duplexing
US8467363B2 (en) 2011-08-17 2013-06-18 CBF Networks, Inc. Intelligent backhaul radio and antenna system
KR102009743B1 (ko) * 2012-06-29 2019-10-21 삼성전자주식회사 빔포밍 기반 통신 시스템에서 신호를 전송하는 방법 및 장치
US8804566B1 (en) 2012-07-25 2014-08-12 Sprint Spectrum L.P. Tracking area reconfiguration based on sector load
EP2744283A3 (en) * 2012-12-11 2015-04-01 Telefonaktiebolaget L M Ericsson (Publ) Synchronization of a radio device
US9526074B2 (en) 2013-03-15 2016-12-20 Google Technology Holdings LLC Methods and apparatus for determining a transmit antenna gain and a spatial mode of a device
US9277528B1 (en) 2013-08-12 2016-03-01 Sprint Spectrum L.P. Configuration of tracking area layers
US9300388B1 (en) 2013-12-18 2016-03-29 Google Inc. Systems and methods for using different beam widths for communications between balloons
EP3449580B1 (en) * 2016-04-27 2020-11-18 Telefonaktiebolaget LM Ericsson (PUBL) Shaping of transmission beams
US10805827B2 (en) * 2016-12-02 2020-10-13 Sharp Kabushiki Kaisha Base station device, communication system, and beam control method and program
US9948377B1 (en) * 2017-02-06 2018-04-17 Mitsubishi Electric Research Laboratories, Inc. System and method for spatial beamforming modulation
RU2700688C1 (ru) 2018-09-24 2019-09-19 Самсунг Электроникс Ко., Лтд. Способы калибровки каналов фазированной антенной решетки
US11448722B2 (en) * 2020-03-26 2022-09-20 Intel Corporation Apparatus, system and method of communicating radar signals
RU2734287C1 (ru) * 2020-05-28 2020-10-14 Акционерное общество "Концерн "Созвездие" Способ формирования фазоманипулированных широкополосных сигналов с поляризационным кодированием с оптимальными апериодическими автокорреляционными функциями

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592490A (en) * 1991-12-12 1997-01-07 Arraycomm, Inc. Spectrally efficient high capacity wireless communication systems
US5546090A (en) * 1991-12-12 1996-08-13 Arraycomm, Inc. Method and apparatus for calibrating antenna arrays
US5828658A (en) * 1991-12-12 1998-10-27 Arraycomm, Inc. Spectrally efficient high capacity wireless communication systems with spatio-temporal processing
US5471647A (en) * 1993-04-14 1995-11-28 The Leland Stanford Junior University Method for minimizing cross-talk in adaptive transmission antennas
US5434578A (en) * 1993-10-22 1995-07-18 Westinghouse Electric Corp. Apparatus and method for automatic antenna beam positioning
KR100217715B1 (ko) * 1993-12-31 1999-09-01 윤종용 직접확산/부호분할 다중접근 시스템에서의 업-링크 접근 시스템
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6101399A (en) * 1995-02-22 2000-08-08 The Board Of Trustees Of The Leland Stanford Jr. University Adaptive beam forming for transmitter operation in a wireless communication system
US5563610A (en) * 1995-06-08 1996-10-08 Metawave Communications Corporation Narrow beam antenna systems with angular diversity
US5886988A (en) * 1996-10-23 1999-03-23 Arraycomm, Inc. Channel assignment and call admission control for spatial division multiple access communication systems
US6122260A (en) * 1996-12-16 2000-09-19 Civil Telecommunications, Inc. Smart antenna CDMA wireless communication system
US5937014A (en) * 1997-03-27 1999-08-10 Telefonaktiebolaget Lm Ericsson Self-synchronizing equalization techniques and systems
US5973638A (en) * 1998-01-30 1999-10-26 Micronetics Wireless, Inc. Smart antenna channel simulator and test system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112019280A (zh) * 2020-08-25 2020-12-01 安徽蓝煜电子科技有限公司 一种智能天线网络校准方法

Also Published As

Publication number Publication date
US6347234B1 (en) 2002-02-12

Similar Documents

Publication Publication Date Title
BR9812816A (pt) Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma
PL339462A1 (en) Method of temporarily increasing area-related traffic load capacity in sdma type communication systems
KR0169890B1 (ko) 통신 장치와 베이스 사이트 사이에서 통신 신호를 전달하기 위한 방법 및 장치
FR2705849B1 (fr) Station de base d'un réseau cellulaire de type GSM, et procédé d'échange de données entre cette station de base et un mobile évoluant dans le réseau.
BR0006751A (pt) Reutilização melhorada de códigos e espectro em um sistema cdma com células de setor múltiplo
AR035954A1 (es) Un metodo para utilizar en un sistema celular de comunicaciones que tiene canales primero y segundo, un nodo de control, un sistema celular de comunicaciones de acceso multiple por division de codigo y un nodo de comunicacion para ser usado en el sistema celular de comunicaciones de acceso multiple
BRPI0411499A (pt) direcionamento de antena para ponto de acesso com base na diversidade espacial
ATE476069T1 (de) Drahtlose mehrfachzugriff- kommunikationsarchitektur
DE60126963D1 (de) Kooperative diversität in einem selbstorganisierenden netz
AR060376A2 (es) Una estacion base para ser utilizada en un sistema de comunicacion de acceso multiple por division de codigo y un sistema de acceso multiple por division de codigo que comprende dicha estacion base
AU2772901A (en) System for allocating resources in a communication system
BR0308087A (pt) Transmissão de dados com distribuição não uniforme de taxa de dados para um sistema de múltiplas entradas e múltiplas saìdas (mimo)
BR9909304A (pt) Processo e sistema para seleção de célula em um sistema de comunicações móveis celulares
BR0013889A (pt) Método para uso em um sistema de comunicação de espectro espalhado que tem uma pluralidade de antenas de transmissão, e, sistema de comunicação de espectro espalhado
ATE533269T1 (de) Gleichzeitige entzerrung, soft-demapping und phasenfehlerkorrektur in einem drahtlosen system mit empfangs-diversity
DE69516512D1 (de) Sektorisiertes mehrzweck cellulares funkubertragungssystem
HK1052270A1 (zh) 檢測另外無線通信系統的業務的系統和方法
MX174132B (es) Sistema de comunicacion de radio digital y equipo emisor y receptor
ATE387759T1 (de) Funkkommunikationssystem
NO20051416L (no) Fremgangsmate og system for a redusere effekten av signalinterfens i nullomrader forarsaket av en eller flere antenner
SE9904859L (sv) Förfaranden och anordningar i radiokommunikation
BR0312569A (pt) Método e equipamento para busca de diversidade e atribuição de demodulador em um sistema de comunicação sem fio
ES2262214T3 (es) Estacion movil que integra funciones de radiocomunicacion y localizacion, y metodo correspondiente.
ES2267187T3 (es) Sistema de radio y metodo para establecimiento de llamadas.
BR9814965A (pt) Estação base para uso em um sistema de comunicação sem fio incluindo uma pluralidade de estações móveis, sistema de comunicação sem fio, e, processo para conduzir comunicações entre uma estação base e estações móveis em um sistema de comunicação sem fio

Legal Events

Date Code Title Description
PC Transfer

Free format text: METAWAVE COMMUNICATIONS CORPORATION (US)

FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]