NO20001026L - Praktisk mÕte for Õ øke overføringskapasiteten i et radiosambandsnett for CDMA - Google Patents

Praktisk mÕte for Õ øke overføringskapasiteten i et radiosambandsnett for CDMA

Info

Publication number
NO20001026L
NO20001026L NO20001026A NO20001026A NO20001026L NO 20001026 L NO20001026 L NO 20001026L NO 20001026 A NO20001026 A NO 20001026A NO 20001026 A NO20001026 A NO 20001026A NO 20001026 L NO20001026 L NO 20001026L
Authority
NO
Norway
Prior art keywords
signal
practical way
antenna system
final
increase
Prior art date
Application number
NO20001026A
Other languages
English (en)
Norwegian (no)
Other versions
NO20001026D0 (no
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
Publication of NO20001026D0 publication Critical patent/NO20001026D0/no
Publication of NO20001026L publication Critical patent/NO20001026L/no

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
    • 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
    • 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
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transceivers (AREA)
  • Electrotherapy Devices (AREA)
  • Transmitters (AREA)
NO20001026A 1997-09-15 2000-02-29 Praktisk mÕte for Õ øke overføringskapasiteten i et radiosambandsnett for CDMA NO20001026L (no)

Applications Claiming Priority (6)

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
US9734098P 1998-08-20 1998-08-20
PCT/US1998/019299 WO1999014870A2 (en) 1997-09-15 1998-09-15 Practical space-time radio method for cdma communication capacity enhancement

Publications (2)

Publication Number Publication Date
NO20001026D0 NO20001026D0 (no) 2000-02-29
NO20001026L true NO20001026L (no) 2000-05-15

Family

ID=27535886

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20001026A NO20001026L (no) 1997-09-15 2000-02-29 Praktisk mÕte for Õ øke overføringskapasiteten i et radiosambandsnett for CDMA

Country Status (13)

Country Link
EP (1) EP1062746B1 (id)
JP (2) JP4421106B2 (id)
KR (1) KR100650230B1 (id)
CN (1) CN1305230C (id)
AT (1) ATE262757T1 (id)
AU (1) AU9488598A (id)
CA (1) CA2302547C (id)
DE (1) DE69822672T2 (id)
ID (1) ID25859A (id)
IL (1) IL135099A0 (id)
NO (1) NO20001026L (id)
PL (1) PL339462A1 (id)
WO (1) WO1999014870A2 (id)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953850B1 (en) * 1998-04-03 2005-03-16 Lucent Technologies Inc. Direction determination in cellular mobile communications network
US6233612B1 (en) * 1998-08-31 2001-05-15 International Business Machines Corporation Dynamic network protocol management information base options
DE19916912A1 (de) * 1999-04-14 2000-11-09 Siemens Ag Strahlformungsverfahren der Abwärtsstrecke für Basisstationen in Funk-Kommunikationssystemen
KR100358427B1 (ko) * 1999-07-12 2002-10-25 한국전자통신연구원 씨디엠에이 적응배열안테나 시스템을 위한 효율적 구조의 복조기
US6453177B1 (en) 1999-07-14 2002-09-17 Metawave Communications Corporation Transmitting beam forming in smart antenna array system
EP1279234B1 (en) * 2000-05-05 2005-08-31 Celletra Ltd. System and method for providing polarization matching on a cellular communication forward link
CN1107424C (zh) * 2000-06-12 2003-04-30 信息产业部电信科学技术研究院 在频分双工无线通信系统中使用智能天线的方法与装置
US6662018B1 (en) * 2000-06-28 2003-12-09 Northrop Grumman Corporation Analog power control system for a multi-carrier transmitter
US6535720B1 (en) * 2000-06-28 2003-03-18 Trw Inc. Digital power control system for a multi-carrier transmitter
WO2002011301A2 (en) * 2000-08-01 2002-02-07 Repeater Technologies, Inc. Improved delay combiner system for cdma repeaters and low noise amplifiers
FR2815508B1 (fr) * 2000-10-18 2003-01-03 Mitsubishi Electric Inf Tech Methode d'estimation de canal descendant
CN1129237C (zh) * 2000-11-15 2003-11-26 华为技术有限公司 无线通信系统中数字波束形成方法、模块及其阵列接收机
GB0031834D0 (en) 2000-12-29 2001-02-14 Nokia Networks Oy Parameter estimation for adaptive antenna system
US6847832B2 (en) * 2001-03-09 2005-01-25 Kathrein-Werke Kg System and method for providing phase matching with optimized beam widths
CN100388654C (zh) * 2001-05-03 2008-05-14 中兴通讯股份有限公司 一种基于多波束天线的宽带码分多址基站物理层实现方法
KR100591700B1 (ko) * 2001-10-06 2006-07-03 엘지노텔 주식회사 배열 안테나 시스템에서 신호 경로 탐색 방법 및 이를위한 장치
KR20030030590A (ko) * 2001-10-11 2003-04-18 주식회사 세스텍 스마트 안테나 시스템에서 심볼 레이트로 웨이팅하는핑거와, 그를 이용한 복조 장치 및 방법
KR20030031385A (ko) * 2001-10-15 2003-04-21 주식회사 세스텍 스마트 안테나 시스템에서 칩 레이트로 웨이팅하는핑거와, 그를 이용한 복조 장치 및 방법
KR20030033192A (ko) * 2001-10-18 2003-05-01 주식회사 세스텍 스마트 안테나 시스템에서 심볼레이트와 칩레이트를혼용하여 웨이팅하는 핑거와, 그를 이용한 복조 장치 및방법
TWI366412B (en) 2002-05-01 2012-06-11 Interdigital Tech Corp Method for receiving and transferring service data, base station for transferring service data and wireless transmit/receive unit for receiving service data
CN101800939B (zh) 2002-05-01 2017-10-17 美商内数位科技公司 无线通信中使用的方法以及基站和用户设备
US6741653B2 (en) 2002-07-01 2004-05-25 Interdigital Technology Corporation Data detection for codes with non-uniform spreading factors
JP2004045042A (ja) * 2002-07-08 2004-02-12 Matsushita Electric Ind Co Ltd 位置算出装置及び位置算出方法
CN1297090C (zh) * 2002-07-30 2007-01-24 财团法人工业技术研究院 光切换器及光信号塞取机和光波长信号交换器
CN100588131C (zh) * 2003-02-12 2010-02-03 松下电器产业株式会社 发送装置及无线通信方法
JP4514463B2 (ja) 2003-02-12 2010-07-28 パナソニック株式会社 送信装置及び無線通信方法
GB0322685D0 (en) * 2003-09-27 2003-10-29 Koninkl Philips Electronics Nv Method of position determination
JP4608893B2 (ja) * 2003-10-20 2011-01-12 三菱電機株式会社 レーダ装置
US7434192B2 (en) * 2004-12-13 2008-10-07 Altera Corporation Techniques for optimizing design of a hard intellectual property block for data transmission
US8498669B2 (en) 2005-06-16 2013-07-30 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US9118111B2 (en) 2005-11-02 2015-08-25 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US8280430B2 (en) 2005-11-02 2012-10-02 Qualcomm Incorporated Antenna array calibration for multi-input multi-output wireless communication systems
JP4816171B2 (ja) * 2006-03-15 2011-11-16 ソニー株式会社 電子機器、電子機器システム及び通信方法
CN100387086C (zh) * 2006-07-10 2008-05-07 俞文蕴 多信道无线电监测和相关干涉测向移动站系统
CN100387087C (zh) * 2006-07-10 2008-05-07 俞文蕴 双信道无线电监测和相关干涉测向移动站系统
KR101301418B1 (ko) * 2006-10-31 2013-08-28 퀄컴 인코포레이티드 센서-기반 무선 수신 다이버시티를 위한 장치 및 방법
CN1972165B (zh) * 2006-12-15 2010-12-08 华为技术有限公司 一种干扰检测方法及装置
KR101358991B1 (ko) 2007-09-14 2014-02-06 삼성전자주식회사 다중 빔형성 방법 및 장치
KR100963333B1 (ko) 2007-12-18 2010-06-11 한국전자통신연구원 다중 안테나를 이용한 빔 형성 방법
US8676133B2 (en) * 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
CN102098082B (zh) * 2009-12-11 2013-10-23 中国移动通信集团公司 信道簇跟踪方法及装置
JP5536614B2 (ja) * 2010-10-27 2014-07-02 京セラ株式会社 通信装置及び通信方法
KR101890419B1 (ko) 2012-01-16 2018-08-21 삼성전자주식회사 기준신호를 송수신하기 위한 방법 및 장치
CN103017728B (zh) * 2012-12-31 2014-11-26 电子科技大学 干扰环境下天线阵列方向向量的测定方法
RU2608755C1 (ru) * 2013-04-25 2017-01-24 Интел Корпорейшн Устройство связи миллиметрового диапазона длин волн и способ интеллектуального управления мощностью передачи и плотностью потока мощности
CN105451270B (zh) * 2014-08-04 2019-03-01 上海诺基亚贝尔股份有限公司 在无线通信网络中用于确定发射时间的方法及装置
CN107076824B (zh) * 2014-11-12 2020-04-14 华为技术有限公司 用于确定支撑角以进行多输入多输出下行传输的装置和方法
US10284239B2 (en) 2015-02-06 2019-05-07 Mitsubishi Electric Corporation Antenna device
US10075928B2 (en) * 2016-08-19 2018-09-11 Qualcomm Incorporated Non-uniform transmission of synchronization signals
US10177904B2 (en) 2016-12-21 2019-01-08 Intel IP Corporation Leveraging secondary synchronization signal properties to improve synchronization signal detection
EP3586470A4 (en) * 2017-02-24 2021-03-10 AMI Research & Development, LLC DIRECTIONAL MIMO ANTENNA
CN112204897A (zh) 2018-06-01 2021-01-08 瑞典爱立信有限公司 用于波束选择的方法
RU2700688C1 (ru) 2018-09-24 2019-09-19 Самсунг Электроникс Ко., Лтд. Способы калибровки каналов фазированной антенной решетки
EP3868034B1 (en) * 2018-10-17 2022-09-14 Nokia Solutions and Networks Oy Position likelihood based beamformer optimization
EP3888258B1 (en) 2018-11-30 2022-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Approaches for beam selection
CN111726191B (zh) * 2019-03-21 2024-07-02 中兴通讯股份有限公司 信号处理方法、装置及计算机可读存储介质
US11990973B2 (en) * 2020-04-20 2024-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Beam management for a radio transceiver device
US12199711B2 (en) * 2020-06-11 2025-01-14 Viasat, Inc. Antenna system having simultaneous beamforming and surveying capability
CN115882881B (zh) * 2022-10-11 2025-05-30 西安宇飞电子技术有限公司 一种强干扰下阵列天线时分系统初始角度搜索方法和终端
US12388497B2 (en) * 2022-12-09 2025-08-12 Focal Point Positioning Limited Method and apparatus for performing direction division multiple access
US20250266910A1 (en) * 2024-02-20 2025-08-21 GM Global Technology Operations LLC Method of channel sounding antenna calibration

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5546090A (en) * 1991-12-12 1996-08-13 Arraycomm, Inc. Method and apparatus for calibrating antenna arrays
US5592490A (en) * 1991-12-12 1997-01-07 Arraycomm, Inc. Spectrally efficient high capacity wireless communication systems
US5260968A (en) * 1992-06-23 1993-11-09 The Regents Of The University Of California Method and apparatus for multiplexing communications signals through blind adaptive spatial filtering
US5621752A (en) * 1994-06-23 1997-04-15 Qualcomm Incorporated Adaptive sectorization in a spread spectrum communication system
US5684491A (en) * 1995-01-27 1997-11-04 Hazeltine Corporation High gain antenna systems for cellular use
JPH08274687A (ja) * 1995-03-31 1996-10-18 Matsushita Electric Ind Co Ltd Ｃｄｍａ無線伝送装置およびｃｄｍａ無線伝送システム
JPH09284200A (ja) * 1996-04-10 1997-10-31 Mitsubishi Electric Corp 無線通信装置及び無線通信方法
CN1053313C (zh) * 1997-04-21 2000-06-07 北京信威通信技术有限公司 具有智能天线的时分双工同步码分多址无线通信系统及其通信方法

Also Published As

Publication number Publication date
EP1062746A2 (en) 2000-12-27
CN1305230C (zh) 2007-03-14
CA2302547C (en) 2005-06-14
JP4421106B2 (ja) 2010-02-24
EP1062746B1 (en) 2004-03-24
AU9488598A (en) 1999-04-05
JP2010035188A (ja) 2010-02-12
KR20010030605A (ko) 2001-04-16
HK1032863A1 (en) 2001-08-03
WO1999014870A2 (en) 1999-03-25
JP2003521822A (ja) 2003-07-15
KR100650230B1 (ko) 2006-11-24
DE69822672D1 (de) 2004-04-29
WO1999014870A3 (en) 1999-06-24
ID25859A (id) 2000-11-09
PL339462A1 (en) 2000-12-18
CN1278971A (zh) 2001-01-03
CA2302547A1 (en) 1999-03-25
DE69822672T2 (de) 2005-02-17
NO20001026D0 (no) 2000-02-29
IL135099A0 (en) 2001-05-20
ATE262757T1 (de) 2004-04-15

Similar Documents

Publication Publication Date Title
NO20001026L (no) Praktisk mÕte for Õ øke overføringskapasiteten i et radiosambandsnett for CDMA
TWI235616B (en) Method for code reuse and capacity enhancement using null steering
KR100719637B1 (ko) 이동 통신 시스템의 이동국과 이동국용 통신 다이버시티 방법
CA2201352C (en) Multi-channel transceiver having an adaptive antenna array and method
EP1223702A1 (en) Open-loop diversity technique for systems employing four transmitter antennas
US7929653B2 (en) Open-loop diversity technique for systems employing multi-transmitter antennas
US6850190B2 (en) Combined beamforming-diversity wireless fading channel demodulator using adaptive sub-array group antennas, signal receiving system and method for mobile communications
CN1165127C (zh) 在具有多个天线的通信系统中处理信号的方法
CA2572591A1 (en) Efficient computation of spatial filter matrices for steering transmit diversity in a mimo communication system
EP1523120A3 (en) Methods and apparatus for downlink diversity in cdma using walsh codes
EP1204163A3 (en) Antenna system for use in a wireless communication system
ATE338388T1 (de) Drahtlose kommunikation mittels vielfachsende- und vielfachempfangs-antennenanordnung
AU5715899A (en) Space-time diversity receiver for wireless systems
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
WO2006036052A3 (en) A method of processing received signals in a multi-input multi-output (mimo) system
CN108599830A (zh) 平坦莱斯衰落信道中自适应天线阵列系统下的基于最小和均方误差混合预编码方法
US20200059272A1 (en) SYSTEM AND METHOD FOR SPATIAL MULTIPLEXING IN LoS ENVIRONMENTS
WO2005034406A3 (en) Method and system for enhancing reception of wireless communication signals
CN1980088B (zh) 一种分布天线移动通信系统中的上行链路接收方法及设备
Wu et al. Common structured sparsity based multi-user channel estimation for double-RIS assisted millimeter wave systems
Benson et al. Recurrent neural network array for CDMA mobile communication systems
KR100854326B1 (ko) 다수의 안테나 엘리먼트들이 제공되는 다중 입력 다중출력 통신시스템에서 신호를 송신/수신하는 방법 및 이를위한 장치
CN1972173A (zh) 基于软点的符号译码方法
Sergienko Design of Codebooks for Nonorthogonal Multiple Access with Noncoherent Reception: Comparison of Autoencoder-Based Approaches
Hessamian-Alinejad et al. Design, Performance, and Implementation Concept of Regular Spatial Sampling (RSS) based Beamforming for UMTS LCR-TDD.

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application