JP5587976B2 - 最適化されたランク3コードブックを用いたアップリンク信号送受信 - Google Patents
最適化されたランク3コードブックを用いたアップリンク信号送受信 Download PDFInfo
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- JP5587976B2 JP5587976B2 JP2012504630A JP2012504630A JP5587976B2 JP 5587976 B2 JP5587976 B2 JP 5587976B2 JP 2012504630 A JP2012504630 A JP 2012504630A JP 2012504630 A JP2012504630 A JP 2012504630A JP 5587976 B2 JP5587976 B2 JP 5587976B2
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- 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
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- 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
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
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- 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
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink 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
- H04B7/0413—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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
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- 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
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- 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
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
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- 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
- H04L25/0391—Spatial equalizers codebook-based design construction details of matrices
- H04L25/03923—Spatial equalizers codebook-based design construction details of matrices according to the rank
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- 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
- H04L25/03929—Spatial equalizers codebook-based design with layer mapping, e.g. codeword-to layer design
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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
-
- 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
- H04L27/2614—Peak power aspects
- H04L27/2615—Reduction thereof using coding
-
- 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
- H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
- H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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- 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
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Description
前記表2で同一のプリコーディング行列グループ内の2個のプリコーディング行列間のコーダル距離は、これらプリコーディング行列の変数が互いに180°の位相差を有する場合、すなわち、互いに単位円の直径上に位置する場合に獲得することができる。
前記数学式16を通して、グループ1で前記整理2が成立されることが分かり、他のグループに対しても同一の結論に至り得ることが分かる。
前記数学式17を通して整理3を証明することができる。
本実施形態では、前記整理1〜3から2個のプリコーディング行列間の最大コーダル距離が1である点を考慮し、コーダル距離1の関係を有するプリコーディング行列のみを含むコードブックを設計することを考慮する。
前記表2で2個のプリコーディング行列間のコーダル距離1を満足するコードブックは、4個のプリコーディング行列を含む。
Claims (10)
- 端末がアップリンク信号を4個のアンテナを用いて伝送する方法において、
前記アップリンク信号を3個のレイヤーにマッピングするステップと、
前記3個のレイヤー信号のそれぞれにDFT拡散を行うステップと、
コードブックから選択された特定プリコーディング行列を用いて前記DFT拡散が行われた3個のレイヤー信号をプリコーディングするステップと、
前記プリコーディングされた信号に基づいて、SC―FDMAシンボルを生成するステップと、及び、
前記SC―FDMAシンボルを前記4個のアンテナを介して基地局に伝送するステップと、
を有し、
前記コードブックは、
前記プリコーディング行列グループのそれぞれは、X∈{1、−1}の条件を満足する、アップリンク信号伝送方法。 - 前記コードブックは、多重アンテナの伝送電力が均等になるように設定される、請求項1に記載のアップリンク信号伝送方法。
- 多重アンテナを介してアップリンク信号を伝送する端末装置において、
信号送受信用の4個のアンテナと、
3個のレイヤー信号を前記4個のアンテナを介して伝送するのに用いられるコードブックを格納するメモリと、及び、
前記多重アンテナ及び前記メモリと接続されて前記アップリンク信号の伝送を処理するプロセッサと、
を有し、
前記プロセッサは、
前記アップリンク信号を前記3個のレイヤーにマッピングするレイヤーマッパーと、
前記3個のレイヤー信号のそれぞれにDFT拡散を行うDFTモジュールと、
前記メモリに格納された前記コードブックから選択された特定プリコーディング行列を用いて前記DFTモジュールから受信された前記DFT拡散が行われた3個のレイヤー信号をプリコーディングするプリコーダと、及び、
前記プリコーディングされた信号に基づいて、SC―FDMAシンボルを生成し、前記SC―FDMAシンボルを前記4個のアンテナを介して基地局に伝送する伝送モジュールと、
を有し、
前記コードブックは、
前記プリコーディング行列グループのそれぞれは、X∈{1、−1}の条件を満足する、端末装置。 - 前記コードブックは、多重アンテナの伝送電力が均等になるように設定される、請求項4に記載の端末装置。
- 端末のアップリンク信号を受信する基地局装置において、
信号送受信用のアンテナと、
前記端末の4個のアンテナを介して前記端末から伝送された3個のレイヤー信号を受信するのに用いられるコードブックを格納するメモリと、及び、
前記アンテナ及び前記メモリと接続されて前記アップリンク信号受信を処理するプロセッサと、
を有し、
前記プロセッサは、前記メモリに格納された前記コードブックから選択された特定プリコーディング行列を用いて前記受信信号を処理するように構成され、
前記コードブックは、
前記プリコーディング行列グループのそれぞれは、各々が異なるX値を持つ2つのプリコーディング行列を有する、基地局装置。
Applications Claiming Priority (19)
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US16893109P | 2009-04-13 | 2009-04-13 | |
US61/168,931 | 2009-04-13 | ||
US18166609P | 2009-05-28 | 2009-05-28 | |
US61/181,666 | 2009-05-28 | ||
US18306509P | 2009-06-01 | 2009-06-01 | |
US61/183,065 | 2009-06-01 | ||
US18431309P | 2009-06-05 | 2009-06-05 | |
US61/184,313 | 2009-06-05 | ||
US18483009P | 2009-06-07 | 2009-06-07 | |
US61/184,830 | 2009-06-07 | ||
US18519809P | 2009-06-09 | 2009-06-09 | |
US61/185,198 | 2009-06-09 | ||
US18638609P | 2009-06-12 | 2009-06-12 | |
US61/186,386 | 2009-06-12 | ||
US21939609P | 2009-06-23 | 2009-06-23 | |
US61/219,396 | 2009-06-23 | ||
KR10-2010-0031369 | 2010-04-06 | ||
KR1020100031369A KR101670744B1 (ko) | 2009-04-13 | 2010-04-06 | 최적화된 랭크 3 코드북을 이용한 상향링크 신호 송수신 |
PCT/KR2010/002261 WO2010120089A2 (en) | 2009-04-13 | 2010-04-13 | Uplink signal transmission and reception using optimized rank 3 codebook |
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JP2012523744A JP2012523744A (ja) | 2012-10-04 |
JP5587976B2 true JP5587976B2 (ja) | 2014-09-10 |
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US (4) | US9007885B2 (ja) |
EP (1) | EP2420006B1 (ja) |
JP (1) | JP5587976B2 (ja) |
KR (1) | KR101670744B1 (ja) |
CN (1) | CN102362440B (ja) |
CA (1) | CA2755399C (ja) |
MX (1) | MX2011009121A (ja) |
RU (1) | RU2476995C1 (ja) |
WO (1) | WO2010120089A2 (ja) |
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KR101670744B1 (ko) | 2016-11-09 |
KR20100113453A (ko) | 2010-10-21 |
RU2476995C1 (ru) | 2013-02-27 |
US20160164585A1 (en) | 2016-06-09 |
US9294175B2 (en) | 2016-03-22 |
US9596015B2 (en) | 2017-03-14 |
US9154343B2 (en) | 2015-10-06 |
US20150188735A1 (en) | 2015-07-02 |
US20150365149A1 (en) | 2015-12-17 |
JP2012523744A (ja) | 2012-10-04 |
WO2010120089A3 (en) | 2011-01-20 |
CN102362440A (zh) | 2012-02-22 |
US20120170516A1 (en) | 2012-07-05 |
MX2011009121A (es) | 2011-09-26 |
CA2755399A1 (en) | 2010-10-21 |
CA2755399C (en) | 2015-06-23 |
EP2420006B1 (en) | 2018-05-30 |
CN102362440B (zh) | 2016-08-03 |
EP2420006A2 (en) | 2012-02-22 |
EP2420006A4 (en) | 2012-10-10 |
WO2010120089A2 (en) | 2010-10-21 |
US9007885B2 (en) | 2015-04-14 |
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