KR20080047481A - 무선통신시스템에서의 빔형성 방법 및 장치 - Google Patents
무선통신시스템에서의 빔형성 방법 및 장치 Download PDFInfo
- Publication number
- KR20080047481A KR20080047481A KR1020087009551A KR20087009551A KR20080047481A KR 20080047481 A KR20080047481 A KR 20080047481A KR 1020087009551 A KR1020087009551 A KR 1020087009551A KR 20087009551 A KR20087009551 A KR 20087009551A KR 20080047481 A KR20080047481 A KR 20080047481A
- Authority
- KR
- South Korea
- Prior art keywords
- base station
- signal
- subscriber station
- data
- subscriber
- Prior art date
Links
Images
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
- H04B7/06—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
- H04B7/0617—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 for beam forming
-
- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Radar Systems Or Details Thereof (AREA)
- Time-Division Multiplex Systems (AREA)
- Alarm Systems (AREA)
- Electroluminescent Light Sources (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Transceivers (AREA)
- Burglar Alarm Systems (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
Description
Claims (2)
- 무선 신호를 수신하는 장치로서,a) 하나 이상의 다중경로 신호 각각의 슬롯과 서브-슬롯 타이밍에 기초하여, 타이밍 신호를 생성하는 슬롯 타이밍 제어기로서, 소정 서브-슬롯의 신호는 상기 슬롯내의 다른 신호와는 상이한 빔을 따라 전송되는, 슬롯 타이밍 제어기;b) 상기 타이밍 신호에 기초하여 상기 하나 이상의 다중경로 신호 중 하나에 대한 C/I (carrier-to-interference) 를 예측하는 수단; 및c) 상기 C/I 에 기초하여, 정보를 송신기에 송신하는 수단을 구비하는, 무선 신호 수신 장치.
- 기지국으로부터 하나 이상의 가입자국으로의 송신 빔을 최적화하는 방법으로서,a) 송신기로부터 수신기로의 제 1 송신 빔을 따라 소정 신호를 송신하는 단계;b) 수신된 제 1 신호와 상기 소정 신호와의 비교에 기초하여, 상기 수신기에서 제 1 C/I 예측값을 생성하는 단계;c) 상기 제 1 송신 빔을 조정하여 제 2 송신 빔을 형성하고, 상기 가입자국으로 상기 제 2 송신 빔을 따라 상기 소정 신호를 송신하는 단계;d) 수신된 제 2 신호와 상기 소정 신호와의 비교에 기초하여, 상기 수신기에 서 제 2 C/I 예측값을 생성하는 단계;e) 상기 제 2 C/I 예측값을 상기 제 1 C/I 예측값과 이전에 생성된 C/I 값과 비교하는 단계; 및f) 상기 c), d), 및 e) 단계를 반복하고, 가장 큰 C/I 예측값에 대응하는 송신 빔을 식별하는 단계를 포함하는, 송신 빔 최적화 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/388,267 | 1999-09-01 | ||
US09/388,267 US6778507B1 (en) | 1999-09-01 | 1999-09-01 | Method and apparatus for beamforming in a wireless communication system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020077009420A Division KR100851792B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080047481A true KR20080047481A (ko) | 2008-05-28 |
KR100910957B1 KR100910957B1 (ko) | 2009-08-05 |
Family
ID=23533394
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020077009420A KR100851792B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
KR1020027002341A KR100839397B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
KR1020087009551A KR100910957B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020077009420A KR100851792B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
KR1020027002341A KR100839397B1 (ko) | 1999-09-01 | 2000-08-31 | 무선통신시스템에서의 빔형성 방법 및 장치 |
Country Status (14)
Country | Link |
---|---|
US (1) | US6778507B1 (ko) |
EP (4) | EP2262126B1 (ko) |
JP (5) | JP2003529962A (ko) |
KR (3) | KR100851792B1 (ko) |
CN (4) | CN1534892B (ko) |
AT (2) | ATE556495T1 (ko) |
AU (1) | AU6948400A (ko) |
BR (1) | BRPI0013670B1 (ko) |
DE (1) | DE60040078D1 (ko) |
DK (1) | DK1816759T3 (ko) |
ES (1) | ES2383537T3 (ko) |
HK (5) | HK1068740A1 (ko) |
PT (1) | PT1816759E (ko) |
WO (1) | WO2001017131A1 (ko) |
Families Citing this family (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6115406A (en) * | 1999-09-10 | 2000-09-05 | Interdigital Technology Corporation | Transmission using an antenna array in a CDMA communication system |
US6278726B1 (en) * | 1999-09-10 | 2001-08-21 | Interdigital Technology Corporation | Interference cancellation in a spread spectrum communication system |
JP3874991B2 (ja) * | 2000-04-21 | 2007-01-31 | 株式会社東芝 | 無線基地局およびそのフレーム構成方法 |
US7139324B1 (en) * | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
GB0016008D0 (en) * | 2000-06-29 | 2000-08-23 | Nokia Networks Oy | Capacity changes in transceiver apparatus |
US7911993B2 (en) | 2000-07-19 | 2011-03-22 | Ipr Licensing, Inc. | Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure |
US8537656B2 (en) | 2000-07-19 | 2013-09-17 | Ipr Licensing, Inc. | Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure |
US7298691B1 (en) * | 2000-08-04 | 2007-11-20 | Intellon Corporation | Method and protocol to adapt each unique connection in a multi-node network to a maximum data rate |
US7352770B1 (en) | 2000-08-04 | 2008-04-01 | Intellon Corporation | Media access control protocol with priority and contention-free intervals |
US8019068B2 (en) * | 2000-12-01 | 2011-09-13 | Alcatel Lucent | Method of allocating power for the simultaneous downlink conveyance of information between multiple antennas and multiple destinations |
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 |
US6788268B2 (en) | 2001-06-12 | 2004-09-07 | Ipr Licensing, Inc. | Method and apparatus for frequency selective beam forming |
US6917581B2 (en) * | 2001-07-17 | 2005-07-12 | Ipr Licensing, Inc. | Use of orthogonal or near orthogonal codes in reverse link |
US20030050074A1 (en) * | 2001-09-12 | 2003-03-13 | Kogiantis Achilles George | Method for the simultaneous uplink and downlink conveyance of information between multiple mobiles and a base station equipped with multiple antennas |
US7558602B2 (en) * | 2001-09-12 | 2009-07-07 | Alcatel-Lucent Usa Inc. | Method for multi-antenna scheduling of HDR wireless communication systems |
EP1359684A1 (en) * | 2002-04-30 | 2003-11-05 | Motorola Energy Systems Inc. | Wireless transmission using an adaptive transmit antenna array |
US8149703B2 (en) | 2002-06-26 | 2012-04-03 | Qualcomm Atheros, Inc. | Powerline network bridging congestion control |
US7826466B2 (en) | 2002-06-26 | 2010-11-02 | Atheros Communications, Inc. | Communication buffer scheme optimized for VoIP, QoS and data networking over a power line |
US7151951B2 (en) * | 2002-12-23 | 2006-12-19 | Telefonktiebolaget Lm Ericsson (Publ) | Using beamforming and closed loop transmit diversity in a multi-beam antenna system |
US20040152415A1 (en) * | 2003-02-01 | 2004-08-05 | Themi Anagnos | Active antenna method and system with variable directivity and gain |
US7203520B2 (en) | 2003-09-30 | 2007-04-10 | Nortel Networks Limited | Beam wobbling for increased downlink coverage and capacity |
US8090857B2 (en) | 2003-11-24 | 2012-01-03 | Qualcomm Atheros, Inc. | Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks |
KR100846867B1 (ko) * | 2003-12-31 | 2008-07-17 | 엘지전자 주식회사 | 빔포밍 기반 시스템에서의 위치추정 오류 보상방법 |
US7660327B2 (en) | 2004-02-03 | 2010-02-09 | Atheros Communications, Inc. | Temporary priority promotion for network communications in which access to a shared medium depends on a priority level |
US7715425B2 (en) | 2004-02-26 | 2010-05-11 | Atheros Communications, Inc. | Channel adaptation synchronized to periodically varying channel |
US20060030260A1 (en) * | 2004-07-08 | 2006-02-09 | Teisuke Ito | Variable bandwidth broadband wireless access system and method |
US8995921B2 (en) * | 2004-09-10 | 2015-03-31 | Interdigital Technology Corporation | Measurement support for a smart antenna in a wireless communication system |
TWI371938B (en) * | 2005-04-22 | 2012-09-01 | Qualcomm Inc | Antenna array calibration for wireless communications systems |
US20060276135A1 (en) * | 2005-06-03 | 2006-12-07 | Accton Technology Corporation | Antenna control method and system |
US8498669B2 (en) | 2005-06-16 | 2013-07-30 | Qualcomm Incorporated | Antenna array calibration for wireless communication systems |
US20060287016A1 (en) * | 2005-06-17 | 2006-12-21 | Aten-Air, Llc | Modular beamforming apparatus, method and kit |
US8175190B2 (en) | 2005-07-27 | 2012-05-08 | Qualcomm Atheros, Inc. | Managing spectra of modulated signals in a communication network |
US7822059B2 (en) | 2005-07-27 | 2010-10-26 | Atheros Communications, Inc. | Managing contention-free time allocations in a network |
KR100734890B1 (ko) | 2005-10-10 | 2007-07-03 | 삼성전자주식회사 | 스마트 안테나 시스템에서 단말의 수신성능을 향상시키기위한 장치 및 방법 |
US8280430B2 (en) | 2005-11-02 | 2012-10-02 | Qualcomm Incorporated | Antenna array calibration for multi-input multi-output wireless communication systems |
US9118111B2 (en) | 2005-11-02 | 2015-08-25 | Qualcomm Incorporated | Antenna array calibration for wireless communication systems |
KR100830368B1 (ko) | 2005-12-02 | 2008-05-19 | 삼성전자주식회사 | 스마트 안테나 시스템에서 스케줄링 장치 및 방법 |
US7893873B2 (en) * | 2005-12-20 | 2011-02-22 | Qualcomm Incorporated | Methods and systems for providing enhanced position location in wireless communications |
US20070177492A1 (en) * | 2006-01-27 | 2007-08-02 | Qualcomm Incorporated | Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance |
JP4809689B2 (ja) * | 2006-02-23 | 2011-11-09 | 株式会社日立製作所 | 無線通信方法、基地局及び無線通信システム |
CA2547647A1 (en) * | 2006-04-04 | 2007-10-04 | Tenxc Wireless Inc. | Delay based sector beam synthesis in a multi-beam antenna system |
CN101098179B (zh) * | 2006-06-30 | 2010-06-30 | 中国科学院声学研究所 | 一种宽带频域数字波束形成方法 |
CN101106807B (zh) * | 2006-07-12 | 2012-04-11 | 株式会社Ntt都科摩 | 一种基于中继器的蜂窝网络以及空分双工通信方法 |
KR100776647B1 (ko) | 2006-09-29 | 2007-11-19 | 한국전자통신연구원 | 주파수 옵셋 추정 장치 및 방법 |
JP2008160380A (ja) * | 2006-12-22 | 2008-07-10 | Nec Corp | セル間干渉抑圧方法、無線基地局、ユーザ端末 |
KR101484798B1 (ko) | 2007-05-10 | 2015-01-28 | 퀄컴 인코포레이티드 | 공유 매체에의 분산형 액세스의 관리 |
BRPI0812678A2 (pt) * | 2007-07-19 | 2019-09-24 | Interdigital Tech Corp | método e dispositivo para a comunicação sem fio para a codificação e decodificação de vetores de formação de feixe. |
US7978134B2 (en) | 2007-08-13 | 2011-07-12 | Samsung Electronics Co., Ltd. | System and method for efficient transmit and receive beamforming protocol with heterogeneous antenna configuration |
US20110038308A1 (en) * | 2007-10-04 | 2011-02-17 | Yi Song | Forming spatial beams within a cell segment |
WO2009078529A1 (en) * | 2007-12-18 | 2009-06-25 | Electronics And Telecommunications Research Institute | Beamforming method using multiple antennas |
KR100963333B1 (ko) * | 2007-12-18 | 2010-06-11 | 한국전자통신연구원 | 다중 안테나를 이용한 빔 형성 방법 |
US8098767B2 (en) * | 2007-12-20 | 2012-01-17 | Qualcomm Incorporated | Receiver adjustment between pilot bursts |
US7920494B2 (en) * | 2008-01-04 | 2011-04-05 | Motorola Mobility, Inc. | Method and apparatus for performing mobility measurements in a communication network |
US8051037B2 (en) | 2008-01-25 | 2011-11-01 | Samsung Electronics Co., Ltd. | System and method for pseudorandom permutation for interleaving in wireless communications |
US8165595B2 (en) * | 2008-01-25 | 2012-04-24 | Samsung Electronics Co., Ltd. | System and method for multi-stage antenna training of beamforming vectors |
US8280445B2 (en) | 2008-02-13 | 2012-10-02 | Samsung Electronics Co., Ltd. | System and method for antenna training of beamforming vectors by selective use of beam level training |
US8626080B2 (en) * | 2008-03-11 | 2014-01-07 | Intel Corporation | Bidirectional iterative beam forming |
US20090231196A1 (en) * | 2008-03-11 | 2009-09-17 | Huaning Niu | Mmwave wpan communication system with fast adaptive beam tracking |
US8478204B2 (en) | 2008-07-14 | 2013-07-02 | Samsung Electronics Co., Ltd. | System and method for antenna training of beamforming vectors having reuse of directional information |
MY153494A (en) * | 2008-11-02 | 2015-02-13 | Lg Electronics Inc | Pre-coding method for spatial multiplexing in multiple input and output system |
CN101547036B (zh) * | 2009-01-23 | 2012-08-08 | 华为技术有限公司 | 一种发射天线扩展后的参考信号发送方法、设备和系统 |
US8218492B2 (en) | 2009-06-26 | 2012-07-10 | Intel Corporation | Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems |
US8744376B2 (en) * | 2009-10-30 | 2014-06-03 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for supporting uplink transmit diversity |
US9401753B2 (en) | 2009-12-23 | 2016-07-26 | Intel Corporation | Native medium access control support for beamforming |
JP5678171B2 (ja) | 2010-04-12 | 2015-02-25 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | ネットワークにおける低オーバーヘッド通信のためのチャネル推定 |
JP6238305B2 (ja) | 2011-09-16 | 2017-11-29 | サムスン エレクトロニクス カンパニー リミテッド | 無線通信システムにおけるビーム割り当て装置及び方法 |
WO2013044447A1 (en) * | 2011-09-27 | 2013-04-04 | St-Ericsson Sa | Method and apparatus for code activation, computer program and storage medium thereof |
US8306479B1 (en) * | 2012-07-06 | 2012-11-06 | Metropcs Wireless, Inc. | Polarization control for cell telecommunication system |
CN103812546B (zh) * | 2012-11-07 | 2017-08-25 | 华为技术有限公司 | 一种基于天线阵列的参考信号映射方法、装置及系统 |
US8891605B2 (en) | 2013-03-13 | 2014-11-18 | Qualcomm Incorporated | Variable line cycle adaptation for powerline communications |
GB2517218B (en) | 2013-08-16 | 2017-10-04 | Analog Devices Global | Communication unit and method of antenna array calibration |
GB2517217B (en) * | 2013-08-16 | 2018-03-21 | Analog Devices Global | Communication unit, integrated circuit and method for generating a plurality of sectored beams |
US9237467B2 (en) | 2013-11-27 | 2016-01-12 | At&T Intellectual Property I, L.P. | Adaptive pacing of media content delivery over a wireless network |
CN104168048B (zh) * | 2014-08-14 | 2017-06-06 | 中国联合网络通信集团有限公司 | 多天线调节的方法及装置 |
GB2532067A (en) * | 2014-11-07 | 2016-05-11 | Nec Corp | Communication system |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901307A (en) | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US4809205A (en) * | 1986-11-19 | 1989-02-28 | Rockwell International Corporation | Digital sine conversion circuit for use in direct digital synthesizers |
US5109390A (en) | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver in a cdma cellular telephone system |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5511073A (en) | 1990-06-25 | 1996-04-23 | Qualcomm Incorporated | Method and apparatus for the formatting of data for transmission |
JPH05102904A (ja) * | 1991-10-04 | 1993-04-23 | Nec Corp | Tdma無線通信方式 |
US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
US5400362A (en) * | 1993-03-29 | 1995-03-21 | General Electric Company | Double sided slot traversing decoding for time division multiple access (TDMA) radio systems |
EP0626769B1 (en) * | 1993-05-26 | 2000-02-02 | Nec Corporation | Network synchronization for cellular TDMA communication using signals from mobile stations in neighboring cells |
ZA948134B (en) | 1993-10-28 | 1995-06-13 | Quaqlcomm Inc | Method and apparatus for performing handoff between sectors of a common base station |
JPH07154129A (ja) * | 1993-11-29 | 1995-06-16 | Nippon Motorola Ltd | Lms方式のアダプティブアレイアンテナ装置 |
JPH07170574A (ja) * | 1993-12-14 | 1995-07-04 | Uniden Corp | 接続制御方法及びそれを用いたコードレス電話機 |
JP3417024B2 (ja) * | 1993-12-17 | 2003-06-16 | ソニー株式会社 | パイロット信号検出回路 |
US5621752A (en) * | 1994-06-23 | 1997-04-15 | Qualcomm Incorporated | Adaptive sectorization in a spread spectrum communication system |
DE69533540T2 (de) | 1994-07-29 | 2005-11-17 | Qualcomm, Inc., San Diego | Verfahren und gerät zum ausführen der kodeerfassung in einem cdma übertragungssystem |
FI98172C (fi) * | 1995-05-24 | 1997-04-25 | Nokia Telecommunications Oy | Menetelmä pilottisignaalin lähettämiseksi ja solukkoradiojärjestelmä |
US5805648A (en) | 1995-07-31 | 1998-09-08 | Qualcomm Incorporated | Method and apparatus for performing search acquisition in a CDMA communication system |
JP3441256B2 (ja) * | 1995-09-06 | 2003-08-25 | 株式会社東芝 | 無線通信システム |
KR100193836B1 (ko) * | 1995-12-29 | 1999-06-15 | 윤종용 | 감소된 위상동기루프를 가지는 디지털 무선통신시스템 및 그 동기화 방법 |
IL120574A (en) * | 1996-05-17 | 2002-09-12 | Motorala Ltd | Methods and devices for transmitter track weights |
JP3272961B2 (ja) * | 1996-08-02 | 2002-04-08 | 株式会社日立国際電気 | アダプティブアレーアンテナ |
US6067292A (en) * | 1996-08-20 | 2000-05-23 | Lucent Technologies Inc | Pilot interference cancellation for a coherent wireless code division multiple access receiver |
US5754139A (en) * | 1996-10-30 | 1998-05-19 | Motorola, Inc. | Method and intelligent digital beam forming system responsive to traffic demand |
US5933462A (en) | 1996-11-06 | 1999-08-03 | Qualcomm Incorporated | Soft decision output decoder for decoding convolutionally encoded codewords |
US5914946A (en) * | 1996-11-08 | 1999-06-22 | Lucent Technologies Inc. | TDM-based fixed wireless loop system |
CA2216761C (en) * | 1996-11-08 | 2002-01-01 | Lucent Technologies Inc. | Tdm-based fixed wireless loop system |
US6144652A (en) * | 1996-11-08 | 2000-11-07 | Lucent Technologies Inc. | TDM-based fixed wireless loop system |
JPH10190497A (ja) * | 1996-12-27 | 1998-07-21 | Fujitsu Ltd | Sir測定装置 |
JP3450146B2 (ja) * | 1997-02-04 | 2003-09-22 | 三菱電機株式会社 | アダプティブアレーアンテナの指向性制御回路 |
JP4121560B2 (ja) * | 1997-02-13 | 2008-07-23 | ノキア コーポレイション | 方向性無線通信方法及び装置 |
JP2998684B2 (ja) * | 1997-03-07 | 2000-01-11 | 日本電気株式会社 | 数値制御発振器 |
US6104935A (en) * | 1997-05-05 | 2000-08-15 | Nortel Networks Corporation | Down link beam forming architecture for heavily overlapped beam configuration |
FI105063B (fi) * | 1997-05-16 | 2000-05-31 | Nokia Networks Oy | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
US6108374A (en) * | 1997-08-25 | 2000-08-22 | Lucent Technologies, Inc. | System and method for measuring channel quality information |
FI104527B (fi) * | 1997-09-17 | 2000-02-15 | Nokia Mobile Phones Ltd | Mukautuva radiolinkki |
US6353640B1 (en) * | 1997-11-03 | 2002-03-05 | Harris Corporation | Reconfigurable radio frequency communication system |
US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
KR100433901B1 (ko) * | 1998-02-21 | 2004-11-06 | 삼성전자주식회사 | 이동통신시스템의시간스위칭송신다이버시티장치 |
US6100843A (en) * | 1998-09-21 | 2000-08-08 | Tantivy Communications Inc. | Adaptive antenna for use in same frequency networks |
DE60040137D1 (de) * | 1999-03-12 | 2008-10-16 | Qualcomm Inc | Verfahren und vorrichtung zur leistungszuteilung auf eine rückwärtsleistungssteuerung eines kommunikationssystems |
US6397070B1 (en) * | 1999-07-21 | 2002-05-28 | Qualcomm Incorporated | Method and apparatus for estimating reverse link loading in a wireless communication system |
-
1999
- 1999-09-01 US US09/388,267 patent/US6778507B1/en not_active Expired - Lifetime
-
2000
- 2000-08-31 CN CN2003101164782A patent/CN1534892B/zh not_active Expired - Lifetime
- 2000-08-31 KR KR1020077009420A patent/KR100851792B1/ko active IP Right Grant
- 2000-08-31 PT PT07010284T patent/PT1816759E/pt unknown
- 2000-08-31 KR KR1020027002341A patent/KR100839397B1/ko active IP Right Grant
- 2000-08-31 EP EP10011744.9A patent/EP2262126B1/en not_active Expired - Lifetime
- 2000-08-31 WO PCT/US2000/023925 patent/WO2001017131A1/en active Application Filing
- 2000-08-31 ES ES07010284T patent/ES2383537T3/es not_active Expired - Lifetime
- 2000-08-31 DK DK07010284.3T patent/DK1816759T3/da active
- 2000-08-31 DE DE60040078T patent/DE60040078D1/de not_active Expired - Lifetime
- 2000-08-31 BR BRPI0013670A patent/BRPI0013670B1/pt active IP Right Grant
- 2000-08-31 AT AT07010284T patent/ATE556495T1/de active
- 2000-08-31 CN CN2003101164778A patent/CN1534891B/zh not_active Expired - Lifetime
- 2000-08-31 KR KR1020087009551A patent/KR100910957B1/ko active IP Right Grant
- 2000-08-31 EP EP07010284A patent/EP1816759B1/en not_active Expired - Lifetime
- 2000-08-31 EP EP00957934A patent/EP1208658B1/en not_active Expired - Lifetime
- 2000-08-31 CN CNB2003101164797A patent/CN1264288C/zh not_active Expired - Lifetime
- 2000-08-31 EP EP17156928.8A patent/EP3203653B1/en not_active Expired - Lifetime
- 2000-08-31 AT AT00957934T patent/ATE406711T1/de not_active IP Right Cessation
- 2000-08-31 CN CNB008122458A patent/CN1201505C/zh not_active Expired - Lifetime
- 2000-08-31 AU AU69484/00A patent/AU6948400A/en not_active Abandoned
- 2000-08-31 JP JP2001520962A patent/JP2003529962A/ja not_active Withdrawn
-
2003
- 2003-02-21 HK HK05100846.1A patent/HK1068740A1/xx not_active IP Right Cessation
- 2003-02-21 HK HK05100845.2A patent/HK1068739A1/xx not_active IP Right Cessation
- 2003-02-21 HK HK05100847A patent/HK1068741A1/xx not_active IP Right Cessation
- 2003-02-21 HK HK03101324.2A patent/HK1049239B/zh not_active IP Right Cessation
-
2008
- 2008-01-07 HK HK08100156.2A patent/HK1109519A1/xx not_active IP Right Cessation
-
2010
- 2010-09-21 JP JP2010211223A patent/JP5405422B2/ja not_active Expired - Lifetime
-
2011
- 2011-07-01 JP JP2011147645A patent/JP5456727B2/ja not_active Expired - Lifetime
-
2013
- 2013-07-05 JP JP2013142155A patent/JP2013255236A/ja not_active Withdrawn
- 2013-11-11 JP JP2013233557A patent/JP5784684B2/ja not_active Expired - Lifetime
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100910957B1 (ko) | 무선통신시스템에서의 빔형성 방법 및 장치 | |
US7099384B1 (en) | Method and apparatus for time-division power assignments in a wireless communication system | |
JP4897181B2 (ja) | 無線通信システムにおけるビーム切換え方法および装置 | |
RU2141168C1 (ru) | Устройство и способ для взвешивания сигналов на тракте радиопередачи (варианты) | |
US6108323A (en) | Method and system for operating a CDMA cellular system having beamforming antennas | |
JP3343107B2 (ja) | 基地局装置、通信端末装置及び通信方法 | |
US20040152458A1 (en) | Data transfer method in mobile communication system and mobile communication system | |
WO2006106674A1 (ja) | 下りリンクチャネル用の送信装置及び送信方法 | |
US6810070B1 (en) | Selective multi-carrier direct sequence spread spectrum communication systems and methods |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A107 | Divisional application of patent | ||
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E601 | Decision to refuse application | ||
AMND | Amendment | ||
J201 | Request for trial against refusal decision | ||
B701 | Decision to grant | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130628 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20140627 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20160629 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20170629 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20180628 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20190624 Year of fee payment: 11 |