FI972109A0 - Foerfarande foer bestaemning av saendningsriktning och radiosystem - Google Patents
Foerfarande foer bestaemning av saendningsriktning och radiosystemInfo
- Publication number
- FI972109A0 FI972109A0 FI972109A FI972109A FI972109A0 FI 972109 A0 FI972109 A0 FI 972109A0 FI 972109 A FI972109 A FI 972109A FI 972109 A FI972109 A FI 972109A FI 972109 A0 FI972109 A0 FI 972109A0
- Authority
- FI
- Finland
- Prior art keywords
- saendningsriktning
- radiosystem
- och
- foerfarande foer
- foer bestaemning
- Prior art date
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
- H04B7/06—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
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972109A FI105063B (fi) | 1997-05-16 | 1997-05-16 | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
AU74349/98A AU737485B2 (en) | 1997-05-16 | 1998-05-15 | Method of determining transmission direction, and radio system |
EP98921525A EP0988715A2 (en) | 1997-05-16 | 1998-05-15 | Method of determining transmission direction, and radio system |
CN98805187A CN1108030C (zh) | 1997-05-16 | 1998-05-15 | 确定发射方向的方法,以及无线系统 |
PCT/FI1998/000415 WO1998053561A2 (fi) | 1997-05-16 | 1998-05-15 | Method of determining transmission direction, and radio system |
JP55000798A JP2001526012A (ja) | 1997-05-16 | 1998-05-15 | 伝送方向を決定する方法及び無線システム |
US09/439,624 US6144340A (en) | 1997-05-16 | 1999-11-12 | Method of determining transmission direction, and a radio system |
NO995589A NO995589L (no) | 1997-05-16 | 1999-11-15 | Fremgangsmåte for å bestemme senderetning, samt radiosystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972109A FI105063B (fi) | 1997-05-16 | 1997-05-16 | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
FI972109 | 1997-05-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI972109A0 true FI972109A0 (fi) | 1997-05-16 |
FI972109A FI972109A (fi) | 1998-11-17 |
FI105063B FI105063B (fi) | 2000-05-31 |
Family
ID=8548869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI972109A FI105063B (fi) | 1997-05-16 | 1997-05-16 | Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä |
Country Status (8)
Country | Link |
---|---|
US (1) | US6144340A (fi) |
EP (1) | EP0988715A2 (fi) |
JP (1) | JP2001526012A (fi) |
CN (1) | CN1108030C (fi) |
AU (1) | AU737485B2 (fi) |
FI (1) | FI105063B (fi) |
NO (1) | NO995589L (fi) |
WO (1) | WO1998053561A2 (fi) |
Families Citing this family (65)
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ES2200348T3 (es) * | 1997-03-25 | 2004-03-01 | Siemens Aktiengesellschaft | Procedimiento para la estimacion de canal a partir de señales de recepcion transmitidas a traves de un canal de radio. |
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 |
US7440498B2 (en) | 2002-12-17 | 2008-10-21 | Tellabs Operations, Inc. | Time domain equalization for discrete multi-tone systems |
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 |
US6453177B1 (en) * | 1999-07-14 | 2002-09-17 | Metawave Communications Corporation | Transmitting beam forming in smart antenna array system |
US6778507B1 (en) * | 1999-09-01 | 2004-08-17 | Qualcomm Incorporated | Method and apparatus for beamforming in a wireless communication system |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US7630346B2 (en) | 2000-09-29 | 2009-12-08 | Intel Corporation | Hopping on random access channels |
US7158493B1 (en) * | 2000-09-29 | 2007-01-02 | Arraycomm, Llc | Radio communications system with a minimal broadcast channel |
US7349371B2 (en) | 2000-09-29 | 2008-03-25 | Arraycomm, Llc | Selecting random access channels |
WO2002045276A2 (en) * | 2000-11-30 | 2002-06-06 | Arraycomm, Inc. | Training sequence for a radio communications system |
JP2002232341A (ja) * | 2001-02-02 | 2002-08-16 | Hitachi Ltd | 無線通信システム、スマートアンテナを有する無線基地局装置及び無線基地局装置と無線で通信する無線端末 |
US20030017853A1 (en) * | 2001-07-12 | 2003-01-23 | Sarnoff Corporation | Method and apparatus for enhancing the data transmission capacity of a wireless communication system |
JP3540782B2 (ja) | 2001-08-06 | 2004-07-07 | 三洋電機株式会社 | 無線基地装置、無線端末装置、移動体通信システム、および受信動作制御プログラム |
US6907246B2 (en) | 2001-11-20 | 2005-06-14 | Navini Networks, Inc. | Method and system for reducing wireless multi-cell interferences through segregated channel assignments and segregated antenna beams |
JP2003264490A (ja) * | 2002-03-07 | 2003-09-19 | Matsushita Electric Ind Co Ltd | 無線基地局装置及び無線送信方法 |
KR100689399B1 (ko) * | 2002-05-17 | 2007-03-08 | 삼성전자주식회사 | 이동통신시스템에서 스마트 안테나의 순방향 송신빔 형성장치 및 방법 |
JP4041696B2 (ja) * | 2002-05-23 | 2008-01-30 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信システム、基地局、受信端末、無線通信方法 |
US7043274B2 (en) * | 2002-06-28 | 2006-05-09 | Interdigital Technology Corporation | System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping |
US6785559B1 (en) | 2002-06-28 | 2004-08-31 | Interdigital Technology Corporation | System for efficiently covering a sectorized cell utilizing beam forming and sweeping |
US20040004951A1 (en) * | 2002-07-05 | 2004-01-08 | Interdigital Technology Corporation | Method for performing wireless switching |
DE10238796B4 (de) * | 2002-08-23 | 2006-09-14 | Siemens Ag | Verfahren zur Richtungsbestimmung der Position einer Mobilstation relativ zu einer Basisstation, Mobilfunksystem sowie Einrichtung zur Richtungsbestimmung |
US6894993B2 (en) * | 2002-12-27 | 2005-05-17 | Arraycomm, Inc. | Detection and correction of channel swap in spatial division multiple access systems |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access communication system |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US7634277B2 (en) * | 2005-04-28 | 2009-12-15 | Cisco Technology, Inc. | Method for allocating channel resources for improving frequency utilization efficiency of wireless communication systems |
EP1722583A1 (de) * | 2005-05-11 | 2006-11-15 | Siemens Aktiengesellschaft | Beam-Hopping in einem Funkkommunikationssystem |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
CN101064558B (zh) * | 2006-04-26 | 2011-12-28 | 大唐移动通信设备有限公司 | 一种无线通信系统中实现广播组播的方法 |
JP5277246B2 (ja) * | 2007-07-16 | 2013-08-28 | ノーテル・ネットワークス・リミテッド | 無線ネットワークでの空間分割多重アクセスの提供 |
WO2010122432A1 (en) * | 2009-04-21 | 2010-10-28 | Marvell World Trade Ltd | Multi-point opportunistic beamforming with selective beam attenuation |
GB2500927B (en) * | 2012-04-05 | 2014-11-19 | Broadcom Corp | Antenna using fading conditions to control radiation beam |
US9318799B2 (en) | 2013-03-29 | 2016-04-19 | Broadcom Corporation | Wireless communication apparatus and method for controlling antenna radiation patterns based on fading conditions |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2873320B2 (ja) * | 1989-09-19 | 1999-03-24 | 日本電信電話株式会社 | 移動局の在圏セクタ判定方式 |
JP2636718B2 (ja) * | 1993-12-27 | 1997-07-30 | 日本電気株式会社 | 移動通信システム |
US5508707A (en) * | 1994-09-28 | 1996-04-16 | U S West Technologies, Inc. | Method for determining position by obtaining directional information from spatial division multiple access (SDMA)-equipped and non-SDMA-equipped base stations |
DE19753932A1 (de) * | 1997-12-05 | 1999-06-10 | Cit Alcatel | Verfahren zur Bestimmung der Empfangsrichtung mittels einer Gruppenantenne, Funkfeststation und Funksystem |
-
1997
- 1997-05-16 FI FI972109A patent/FI105063B/fi active
-
1998
- 1998-05-15 JP JP55000798A patent/JP2001526012A/ja not_active Ceased
- 1998-05-15 WO PCT/FI1998/000415 patent/WO1998053561A2/fi active IP Right Grant
- 1998-05-15 CN CN98805187A patent/CN1108030C/zh not_active Expired - Fee Related
- 1998-05-15 EP EP98921525A patent/EP0988715A2/en not_active Withdrawn
- 1998-05-15 AU AU74349/98A patent/AU737485B2/en not_active Ceased
-
1999
- 1999-11-12 US US09/439,624 patent/US6144340A/en not_active Expired - Lifetime
- 1999-11-15 NO NO995589A patent/NO995589L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US6144340A (en) | 2000-11-07 |
AU7434998A (en) | 1998-12-11 |
AU737485B2 (en) | 2001-08-23 |
WO1998053561A2 (fi) | 1998-11-26 |
WO1998053561A9 (fi) | 1999-04-01 |
WO1998053561A3 (fi) | 1999-02-04 |
NO995589D0 (no) | 1999-11-15 |
JP2001526012A (ja) | 2001-12-11 |
FI972109A (fi) | 1998-11-17 |
FI105063B (fi) | 2000-05-31 |
EP0988715A2 (en) | 2000-03-29 |
CN1108030C (zh) | 2003-05-07 |
CN1256820A (zh) | 2000-06-14 |
NO995589L (no) | 1999-11-15 |
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