JP5277361B2 - 複数の無線デバイスに送信されることになるシンボルをプリコーディングするためのプリコーディング行列を求めるための方法及び装置 - Google Patents
複数の無線デバイスに送信されることになるシンボルをプリコーディングするためのプリコーディング行列を求めるための方法及び装置 Download PDFInfo
- Publication number
- JP5277361B2 JP5277361B2 JP2013511707A JP2013511707A JP5277361B2 JP 5277361 B2 JP5277361 B2 JP 5277361B2 JP 2013511707 A JP2013511707 A JP 2013511707A JP 2013511707 A JP2013511707 A JP 2013511707A JP 5277361 B2 JP5277361 B2 JP 5277361B2
- Authority
- JP
- Japan
- Prior art keywords
- precoding
- matrix
- interference strength
- interference
- wireless devices
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
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
- H04B7/0413—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
- H04B7/0413—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
- H04B7/0452—Multi-user MIMO 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
- H04B7/06—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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03891—Spatial equalizers
- H04L25/03898—Spatial equalizers codebook-based design
-
- 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
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0465—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking power constraints at power amplifier or emission constraints, e.g. constant modulus, into account
-
- 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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
Description
Claims (15)
- 無線通信システムのノードによって複数の無線デバイスに送信されることになるシンボル(s)をプリコーディングするためのプリコーディング行列(PCM)を求めるための方法(100)であって、該プリコーディング行列(PCM、P)は前記複数の無線デバイスの無線デバイスごとのプリコーディングベクトル(pk)を含み、各プリコーディングベクトル(pk)は前記ノードの複数の送信アンテナの送信アンテナごとのプリコーディング要素(
異なる位相角(θ)について複数の干渉強度インジケータを計算するステップ(110)であって、該異なる位相角を該干渉強度インジケータを計算するためにプリコーディングベクトル(pk)のプリコーディング要素(
前記プリコーディングベクトル(pk)の前記プリコーディング要素(
を備える方法。 - 前記所定の干渉強度判定基準は、複数の前記計算された干渉強度インジケータのうちの最も低い干渉強度を示す計算された干渉強度インジケータの場合に満たされるか、又は前記所定の干渉強度判定基準は、干渉しきい値よりも低い干渉強度を示す計算された干渉強度インジケータの場合に満たされる、請求項1に記載の方法。
- 前記干渉抑圧行列は恒等行列(I)である、請求項8に記載の方法。
- 前記干渉抑圧行列は重み付けされた恒等行列(aI)であり、干渉強度インジケータは、前記重み付けされた恒等行列(aI)のための異なる重み値(a)に対して計算される、請求項8に記載の方法。
- 前記干渉抑圧行列は対角行列であり、干渉強度インジケータは、前記対角行列(D)の対角要素(d)の異なる集合に対して計算される、請求項8に記載の方法。
- 前記プリコーディング行列(PCM)は以下の式に基づいて求められ、
- 無線通信システムのノードによって複数の無線デバイスに送信されることになるシンボル(s)をプリコーディングするためのプリコーディング行列(PCM)を求めるための装置(800)であって、該プリコーディング行列(PCM)は前記複数の無線デバイスの無線デバイスごとのプリコーディングベクトル(pk)を含み、各プリコーディングベクトル(pk)は前記ノードの複数の送信アンテナの送信アンテナごとのプリコーディング要素(
該装置は、異なる位相角(θ)について複数の干渉強度インジケータを計算するように構成されたプロセッサ(810)であって、該異なる位相角をプリコーディングベクトル(pk)のプリコーディング要素(
前記プロセッサ(810)は、前記プリコーディングベクトル(pk)の前記プリコーディング要素(
- 請求項1〜13のいずれか一項に記載の方法を実行するためのプログラムコードを有し、コンピュータ又はマイクロコントローラ上で動作する、コンピュータプログラム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11164379.7 | 2011-04-29 | ||
EP11164379.7A EP2518906B1 (en) | 2011-04-29 | 2011-04-29 | Method and apparatus for determining a precoding matrix for precoding symbols to be transmitted to a plurality of wireless devices |
PCT/EP2012/057809 WO2012146739A1 (en) | 2011-04-29 | 2012-04-27 | Method and apparatus for determining a precoding matrix for precoding symbols to be transmitted to a plurality of wireless devices |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013531931A JP2013531931A (ja) | 2013-08-08 |
JP5277361B2 true JP5277361B2 (ja) | 2013-08-28 |
Family
ID=46046160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013511707A Active JP5277361B2 (ja) | 2011-04-29 | 2012-04-27 | 複数の無線デバイスに送信されることになるシンボルをプリコーディングするためのプリコーディング行列を求めるための方法及び装置 |
Country Status (12)
Country | Link |
---|---|
US (1) | US8693574B2 (ja) |
EP (1) | EP2518906B1 (ja) |
JP (1) | JP5277361B2 (ja) |
KR (1) | KR20130097783A (ja) |
CN (1) | CN103201961A (ja) |
BR (1) | BR112013009453A2 (ja) |
CA (1) | CA2816387A1 (ja) |
ES (1) | ES2444119T3 (ja) |
MX (1) | MX2013004645A (ja) |
PL (1) | PL2518906T3 (ja) |
RU (1) | RU2013117279A (ja) |
WO (1) | WO2012146739A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103327521B (zh) * | 2012-03-20 | 2016-12-14 | 上海贝尔股份有限公司 | 用于分配和检测下行链路控制信道资源的方法以及设备 |
US8942302B2 (en) | 2012-12-20 | 2015-01-27 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
US8976884B2 (en) | 2012-12-20 | 2015-03-10 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
US8971437B2 (en) * | 2012-12-20 | 2015-03-03 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
CN104283645B (zh) | 2013-07-05 | 2019-04-05 | 三星电子株式会社 | 发送装置及发送方法 |
CN103546934B (zh) * | 2013-10-22 | 2016-02-03 | 北京航空航天大学 | 一种以用户为中心的多基站协作干扰抑制方法 |
US9716536B2 (en) * | 2015-03-19 | 2017-07-25 | Mitsubishi Electric Research Laboratories, Inc. | System and method for wireless communications over fading channels |
WO2017011359A1 (en) * | 2015-07-10 | 2017-01-19 | Ping Liang | Methods for reducing complexity of pre-coding matrix computation and grouping of user equipments in massive mimo systems |
CN109450505B (zh) * | 2016-05-13 | 2019-11-15 | 华为技术有限公司 | 一种信道信息发送方法、数据发送方法和设备 |
CN109417411B (zh) * | 2016-06-30 | 2022-08-05 | 松下电器(美国)知识产权公司 | 发送装置以及发送方法 |
KR101915901B1 (ko) | 2017-06-26 | 2018-11-06 | 연세대학교 산학협력단 | Slinr 기반 프리코딩 기법을 적용한 swipt 시스템의 송수신 장치 및 방법 |
US10181880B1 (en) | 2017-10-14 | 2019-01-15 | Facebook, Inc. | Zone precoding |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7801237B2 (en) * | 2004-11-04 | 2010-09-21 | Samsung Electronics Co., Ltd | Apparatus and method of space time frequency block code |
US8014416B2 (en) * | 2006-02-14 | 2011-09-06 | Sibeam, Inc. | HD physical layer of a wireless communication device |
KR20080022033A (ko) * | 2006-09-05 | 2008-03-10 | 엘지전자 주식회사 | 프리코딩 정보 피드백 방법 및 프리코딩 방법 |
US7746952B2 (en) * | 2007-01-08 | 2010-06-29 | Samsung Electronics, Co., Ltd. | Apparatus for generating precoding codebook for MIMO system and method using the apparatus |
US8780771B2 (en) * | 2007-02-06 | 2014-07-15 | Qualcomm Incorporated | Cyclic delay diversity and precoding for wireless communication |
US8325852B2 (en) * | 2007-06-08 | 2012-12-04 | Samsung Electronics Co., Ltd. | CDD precoding for open loop SU MIMO |
JP5340196B2 (ja) * | 2009-03-18 | 2013-11-13 | 日本電信電話株式会社 | 送信ウェイト決定方法 |
US8369439B2 (en) * | 2009-09-30 | 2013-02-05 | Alcatel Lucent | Transmission of precoding codebook over an air interface |
PL2515495T3 (pl) * | 2011-04-21 | 2013-12-31 | Ntt Docomo Inc | Sposób i urządzenie do ustalania wektora prekodowania do prekodowania danych przesyłanych do urządzenia bezprzewodowego w systemie komunikacji bezprzewodowej |
-
2011
- 2011-04-29 ES ES11164379.7T patent/ES2444119T3/es active Active
- 2011-04-29 PL PL11164379T patent/PL2518906T3/pl unknown
- 2011-04-29 EP EP11164379.7A patent/EP2518906B1/en active Active
-
2012
- 2012-04-07 RU RU2013117279/08A patent/RU2013117279A/ru not_active Application Discontinuation
- 2012-04-27 BR BR112013009453A patent/BR112013009453A2/pt not_active IP Right Cessation
- 2012-04-27 KR KR1020137011083A patent/KR20130097783A/ko not_active Application Discontinuation
- 2012-04-27 JP JP2013511707A patent/JP5277361B2/ja active Active
- 2012-04-27 WO PCT/EP2012/057809 patent/WO2012146739A1/en active Application Filing
- 2012-04-27 CN CN2012800035207A patent/CN103201961A/zh active Pending
- 2012-04-27 MX MX2013004645A patent/MX2013004645A/es active IP Right Grant
- 2012-04-27 CA CA2816387A patent/CA2816387A1/en not_active Abandoned
-
2013
- 2013-04-26 US US13/871,361 patent/US8693574B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2816387A1 (en) | 2012-11-01 |
BR112013009453A2 (pt) | 2016-08-16 |
EP2518906A1 (en) | 2012-10-31 |
WO2012146739A1 (en) | 2012-11-01 |
US8693574B2 (en) | 2014-04-08 |
EP2518906B1 (en) | 2013-10-30 |
RU2013117279A (ru) | 2014-10-27 |
MX2013004645A (es) | 2013-06-05 |
US20130279628A1 (en) | 2013-10-24 |
ES2444119T3 (es) | 2014-02-24 |
KR20130097783A (ko) | 2013-09-03 |
JP2013531931A (ja) | 2013-08-08 |
PL2518906T3 (pl) | 2014-04-30 |
CN103201961A (zh) | 2013-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5277361B2 (ja) | 複数の無線デバイスに送信されることになるシンボルをプリコーディングするためのプリコーディング行列を求めるための方法及び装置 | |
US8934565B2 (en) | Reference signaling scheme using compressed feedforward codebooks for multi-user, multiple-input multiple-output (MU-MIMO) systems | |
WO2015144094A1 (en) | Multi-user, multiple access, systems, methods, and devices | |
EP2329606B1 (en) | Interference rejection combining for multi-user mimo telecommunications system | |
US8908747B2 (en) | Method and apparatus for controlling adaptive rank multi antenna communication | |
JP4950311B2 (ja) | 量子化されたチャネルのベクトルを決定する方法及び装置 | |
US8774136B2 (en) | Methods and arrangements for feeding back channel state information | |
US9008008B2 (en) | Method for communicating in a MIMO context | |
US9319115B2 (en) | Method for providing precoding information in a multi-user MIMO system | |
CN107078772A (zh) | Csi准确度感知的网络处理 | |
EP3224965A1 (en) | Method and device for efficient precoder search | |
WO2013064898A1 (en) | Method and apparatus for data beamforming | |
Oruthota et al. | Link adaptation of precoded MIMO-OFDMA system with I/Q interference | |
Su et al. | Hierarchical codebook design for massive MIMO | |
CN107733478B (zh) | 信道反馈和预编码方法、基站、用户终端和系统 | |
Sadek et al. | Joint optimization of CQI calculation and interference mitigation for user-scheduling in MIMO-OFDM systems | |
Schwarz et al. | Subspace versus eigenmode quantization for limited feedback block-diagonalization | |
Chang et al. | Efficient adaptive double codebook based CSI prediction for SU/MU MIMO-OFDM Systems | |
Aust et al. | Codebook selection strategies in long-range sub-1 GHz WLANs | |
Schreck et al. | Limited feedback in multiuser MIMO OFDM systems based on rate approximation | |
Hui et al. | On capacity of MISO beamforming with codebook based scalar quantization | |
Zhang et al. | Adaptive signaling under statistical measurement uncertainty in wireless communications | |
Schreck et al. | Approximation of multiuser rates in MIMO OFDM downlink systems | |
WO2008152540A2 (en) | Method and apparatus for antenna selection in a multi-antenna system | |
Chen et al. | CSI feedback for closed-loop MIMO-OFDM systems based on B-splines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130423 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130520 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 5277361 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |