JP5373765B2 - Mimoコンテキストでの通信方法 - Google Patents
Mimoコンテキストでの通信方法 Download PDFInfo
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- JP5373765B2 JP5373765B2 JP2010504967A JP2010504967A JP5373765B2 JP 5373765 B2 JP5373765 B2 JP 5373765B2 JP 2010504967 A JP2010504967 A JP 2010504967A JP 2010504967 A JP2010504967 A JP 2010504967A JP 5373765 B2 JP5373765 B2 JP 5373765B2
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- Prior art keywords
- precoding
- secondary station
- station
- calculating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
- 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
- H04B7/0619—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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Description
文献EP1775857は、MIMOネットワークでデータを送信/受信する方法を記載している。送信機は、送信(Tx)フィルタ又は受信(Rx)フィルタを計算し、計算されたTxフィルタ又は計算されたRxフィルタと相関するコードブックを選択肢、選択されたコードブックのインデックスを受信機に送信する。
Claims (13)
- 送信アンテナのアレイを備えたプライマリ局からセカンダリ局に下りリンクチャネルで通信する方法であって、プライマリ局において、
(a)前記下りリンクチャネルを構成するステップを有し、
ステップ(a)は、
(a2)送信アンテナのアレイ毎に前記プライマリ局から前記セカンダリ局への対応する送信中に適用されるプリコーディングを計算するステップと;
(a3)前記プリコーディングに可逆変換を適用し、これにより、変換領域で前記プリコーディングを実質的に示す一式のプリコーディング係数を確定するステップと;
(a4)ステップ(a3)で得られた前記係数を実質的に示す少なくとも1つのパラメータを有する一式のパラメータを計算するステップと;
(a5)前記一式のパラメータを前記セカンダリ局にシグナリングするステップと
に分割され、
(b)ステップ(a2)で計算された前記プリコーディングに実質的に従って前記セカンダリ局にデータを送信するステップを有する方法。 - ステップ(a)の前に、前記セカンダリ局からチャネル状態情報を前記プライマリ局で受信することを更に有する、請求項1に記載の方法。
- プリコーディングを計算するステップ(a2)は、各チャネル状態情報を少なくとも部分的に用いて実行される、請求項2に記載の方法。
- プリコーディングを計算するステップ(a2)は、データレートを最大化するように実行される、請求項1又は2に記載の方法。
- ステップ(a)の前に、複数のセカンダリ局から前記セカンダリ局を選択するステップを更に有する、請求項1ないし4のうちいずれか1項に記載の方法。
- 前記選択は、各セカンダリ局の対応するチャネル品質の指標を少なくとも部分的に用いて実行される、請求項5に記載の方法。
- 前記選択は、各対応するセカンダリ局に送信される各データの優先度の指標を少なくとも部分的に用いて実行される、請求項5又は6に記載の方法。
- 前記選択は、第1のセカンダリ局を選択し、前記第1のセカンダリ局と関連するチャネル特性にあまり相関しないチャネル特性を有する更なるセカンダリ局を選択することにより実行される、請求項5ないし7のうちいずれか1項に記載の方法。
- 前記選択は、全体データスループットが最大化されるように実行される、請求項1ないし8のうちいずれか1項に記載の方法。
- 前記可逆変換は、線形且つ直交性である、請求項1ないし9のうちいずれか1項に記載の方法。
- ステップ(a3)は、前記プリコーディングに離散逆フーリエ変換を適用することを有する、請求項10に記載の方法。
- ステップ(a4)の前記一式のパラメータは、ステップ(a3)で計算された前記一式の係数からの最大の大きさを有する係数に基づく、請求項1ないし11のうちいずれか1項に記載の方法。
- 下りリンクチャネルでセカンダリ局と通信する送信アンテナのアレイを有するプライマリ局であって、
前記下りリンクチャネルを構成する構成手段を有し、
前記構成手段は、
送信アンテナのアレイ毎に前記プライマリ局から前記セカンダリ局への対応する送信中に適用されるプリコーディングを計算する計算手段と;
前記プリコーディングに可逆変換を適用し、これにより、変換領域で前記プリコーディングを実質的に示す一式のプリコーディング係数を確定する変換手段と;
前記変換手段により得られた前記係数を実質的に示す少なくとも1つのパラメータを有する一式のパラメータを計算する手段と;
前記一式のパラメータを前記セカンダリ局にシグナリングする手段と
を有し、
前記計算手段により計算された前記プリコーディングに実質的に従って前記セカンダリ局にデータを送信する送信手段を有するプライマリ局。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07301010.0 | 2007-04-30 | ||
EP07301010 | 2007-04-30 | ||
PCT/IB2008/051630 WO2008132688A2 (en) | 2007-04-30 | 2008-04-28 | A method for communicating in a mimo context |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010526464A JP2010526464A (ja) | 2010-07-29 |
JP5373765B2 true JP5373765B2 (ja) | 2013-12-18 |
Family
ID=39832653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010504967A Expired - Fee Related JP5373765B2 (ja) | 2007-04-30 | 2008-04-28 | Mimoコンテキストでの通信方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US9008008B2 (ja) |
EP (1) | EP2158693A2 (ja) |
JP (1) | JP5373765B2 (ja) |
KR (1) | KR101490141B1 (ja) |
CN (1) | CN101675601B (ja) |
TW (1) | TWI446740B (ja) |
WO (1) | WO2008132688A2 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8005043B2 (en) * | 2007-01-03 | 2011-08-23 | Samsung Electronics Co., Ltd | Method and apparatus for scheduling downlink packets in a mobile communication system |
KR101470501B1 (ko) * | 2008-08-20 | 2014-12-08 | 삼성전자주식회사 | 양자화된 채널 상태 정보에 기반하여 데이터를 전송하는 장치 및 방법 |
GB0820535D0 (en) | 2008-11-10 | 2008-12-17 | Icera Inc | Communication system and method |
CN101599788B (zh) * | 2009-05-15 | 2013-02-13 | 华为技术有限公司 | Lte***中确定信道反馈信息的方法及装置 |
EP2478645A4 (en) * | 2009-09-15 | 2017-08-02 | Miteq, Inc. | Measuring satellite linearity from earth using a low duty cycle pulsed microwave signal |
ES2567273T3 (es) * | 2010-06-17 | 2016-04-21 | Panasonic Intellectual Property Corporation Of America | Método y transmisor de precodificación |
CN111970099B (zh) * | 2015-02-17 | 2023-07-25 | 韦勒斯标准与技术协会公司 | 一种站和用于站的无线通信方法 |
US10205491B2 (en) * | 2015-09-28 | 2019-02-12 | Futurewei Technologies, Inc. | System and method for large scale multiple input multiple output communications |
US10848220B2 (en) * | 2017-03-08 | 2020-11-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Compressing and decompressing beamspace coefficients |
EP3451628A1 (en) * | 2017-08-31 | 2019-03-06 | Institut Eurecom G.I.E. | System and method for managing distribution of information in multi-antenna and multi-transmitter environments |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19543764A1 (de) * | 1995-11-24 | 1997-05-28 | Asea Brown Boveri | Berührungsdichtung für Strömungsmaschinen |
US7280604B2 (en) * | 2002-04-22 | 2007-10-09 | Regents Of The University Of Minnesota | Space-time doppler coding schemes for time-selective wireless communication channels |
CN1768449A (zh) * | 2003-04-01 | 2006-05-03 | 皇家飞利浦电子股份有限公司 | 基于宽带天线的波束赋形方法及其装置 |
EP1508992A3 (en) | 2003-08-18 | 2008-05-21 | Samsung Electronics Co., Ltd. | Apparatus and method for scheduling resource in a multiuser MIMO radio communication system |
KR100754795B1 (ko) | 2004-06-18 | 2007-09-03 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 주파수 공간 블록 부호의부호화/복호화 장치 및 방법 |
KR100943620B1 (ko) * | 2004-06-25 | 2010-02-24 | 삼성전자주식회사 | 다중 반송파 기반의 통신 시스템에서의 자원 할당 방법 |
US8023589B2 (en) * | 2004-08-09 | 2011-09-20 | Texas Instruments Incorporated | Wireless MIMO transmitter with antenna and tone precoding blocks |
US7684761B2 (en) * | 2004-11-04 | 2010-03-23 | Nokia Corporation | Closed-loop signalling method for controlling multiple transmit beams and correspondingly adapted transceiver devices |
US20060140294A1 (en) * | 2004-11-05 | 2006-06-29 | Nokia Corporation | Block modulation |
US7561627B2 (en) * | 2005-01-06 | 2009-07-14 | Marvell World Trade Ltd. | Method and system for channel equalization and crosstalk estimation in a multicarrier data transmission system |
EP1775857B1 (en) | 2005-10-17 | 2011-05-04 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system |
US7751353B2 (en) * | 2005-12-29 | 2010-07-06 | Celeno Communications (Israel) Ltd. | Device, system and method of securing wireless communication |
US20070153731A1 (en) * | 2006-01-05 | 2007-07-05 | Nadav Fine | Varying size coefficients in a wireless local area network return channel |
US8914015B2 (en) * | 2006-03-20 | 2014-12-16 | Qualcomm Incorporated | Grouping of users for MIMO transmission in a wireless communication system |
US8102931B2 (en) * | 2006-09-29 | 2012-01-24 | Apple Inc. | Method and device for operating a precoded MIMO system |
US7702029B2 (en) * | 2006-10-02 | 2010-04-20 | Freescale Semiconductor, Inc. | MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |
-
2008
- 2008-04-25 TW TW97115491A patent/TWI446740B/zh not_active IP Right Cessation
- 2008-04-28 CN CN200880014301.2A patent/CN101675601B/zh not_active Expired - Fee Related
- 2008-04-28 US US12/597,013 patent/US9008008B2/en not_active Expired - Fee Related
- 2008-04-28 KR KR1020097024766A patent/KR101490141B1/ko not_active IP Right Cessation
- 2008-04-28 EP EP08738011A patent/EP2158693A2/en not_active Withdrawn
- 2008-04-28 WO PCT/IB2008/051630 patent/WO2008132688A2/en active Application Filing
- 2008-04-28 JP JP2010504967A patent/JP5373765B2/ja not_active Expired - Fee Related
-
2015
- 2015-03-19 US US14/662,328 patent/US20150195023A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US9008008B2 (en) | 2015-04-14 |
JP2010526464A (ja) | 2010-07-29 |
US20150195023A1 (en) | 2015-07-09 |
CN101675601A (zh) | 2010-03-17 |
WO2008132688A3 (en) | 2009-01-22 |
KR101490141B1 (ko) | 2015-02-10 |
US20100118782A1 (en) | 2010-05-13 |
CN101675601B (zh) | 2015-11-25 |
WO2008132688A2 (en) | 2008-11-06 |
EP2158693A2 (en) | 2010-03-03 |
TWI446740B (zh) | 2014-07-21 |
KR20100017428A (ko) | 2010-02-16 |
TW200913536A (en) | 2009-03-16 |
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