JP4763703B2 - 信号ベクトルの決定方法及びシステム、並びにコンピュータプログラム要素 - Google Patents
信号ベクトルの決定方法及びシステム、並びにコンピュータプログラム要素 Download PDFInfo
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- JP4763703B2 JP4763703B2 JP2007534547A JP2007534547A JP4763703B2 JP 4763703 B2 JP4763703 B2 JP 4763703B2 JP 2007534547 A JP2007534547 A JP 2007534547A JP 2007534547 A JP2007534547 A JP 2007534547A JP 4763703 B2 JP4763703 B2 JP 4763703B2
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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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- 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
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03331—Arrangements for the joint estimation of multiple sequences
-
- 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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Description
但し、Hは、統計的に独立した入力値を有するNr×Nt複素チャネル行列であり、vは、ゼロ平均と分散
G = H + (3)
及び
G = P・H H (4)
である。但し、
但し、vは、ゼロ平均と分散
―Hの擬似逆、又は平方根技術(非特許文献5参照)等の従来のIC順序付け技術を用いて、最小ポストSNR又は最大MSE(mean square error)の点から、検出すべき第1のサブストリームとして、最悪のサブストリームを識別する。
―従来のIC検出と同様に、残存するサブストリームのうち最良のサブストリームを一つずつ識別しつづける。
よって、ステップ204の結果は推定信号ベクトル
101 送信機
102 受信機
103 送信アンテナ
104 送信部
105 受信アンテナ
106 受信部
107 検出器
108 通信チャネル
Claims (10)
- 受信信号ベクトルから、複数の成分から構成される信号ベクトルを決定する方法であって、
前記複数の成分のうちの一成分を選択し、
候補符号の一覧のうちの、前記選択された成分に対する有力な符号を表す各候補符号に対して、前記選択された成分は前記候補符号に等しいという仮定の下で、前記候補符号に対する一の候補信号ベクトルを生成し、
複数の前記候補信号ベクトルの品質尺度に基づき、前記複数の候補信号ベクトルから前記信号ベクトルを決定し、
前記品質尺度に応じて前記複数の候補信号ベクトルのうち最良である前記候補信号ベクトルが、決定すべき前記信号ベクトルとして選択される
ことを特徴とする決定方法。 - 前記受信信号ベクトルは、少なくとも一本のアンテナを介して受信した無線信号ベクトルであることを特徴とする請求項1に記載の決定方法。
- 前記受信信号ベクトルは、MIMOシステムを介して受信した無線信号ベクトルであることを特徴とする請求項2に記載の決定方法。
- 一の候補符号に対する一の候補信号ベクトルは、前記選択された成分を前記候補符号に設定し、且つ残存する前記成分を決定することにより決定されることを特徴とする請求項1から3のいずれか一項に記載の決定方法。
- 前記候補符号に設定された前記選択された成分に加えて、一の候補符号に対する前記候補信号ベクトルの成分は、IC検出、又は線形検出により決定されることを特徴とする請求項1から4のいずれか一項に記載の決定方法。
- 前記複数の成分のうち、前記受信信号ベクトルにおける最低の品質を有する成分が選択されることを特徴とする請求項1から5のいずれか一項に記載の決定方法。
- 前記複数の成分のうち、ポストSNR又は最大平均二乗誤差という点で前記受信信号ベクトルにおける最低の品質を有する成分が選択されることを特徴とする請求項1から6のいずれか一項に記載の決定方法。
- 前記信号ベクトルは、前記複数の候補信号ベクトルのメトリックを決定し、且つ最善のメトリックで前記複数の候補信号ベクトルを選択することにより、前記複数の候補信号ベクトルから決定されることを特徴とする請求項1から7のいずれか一項に記載の決定方法。
- 受信信号ベクトルから、複数の成分から構成される信号ベクトルを決定するシステムであって、
前記複数の成分のうちの一成分を選択するように構成された選択部と、
候補符号の一覧のうちの、前記選択された成分に対する有力な符号を表す各候補符号に対して、前記選択された成分は前記候補符号に等しいという仮定の下で、前記候補符号に対する一の候補信号ベクトルを生成するように構成された生成部と、
複数の前記候補信号ベクトルの品質尺度に基づき、前記複数の候補信号ベクトルから前記信号ベクトルを決定し、前記品質尺度に応じて前記複数の候補信号ベクトルのうち最良である前記候補信号ベクトルが、決定すべき前記信号ベクトルとして選択されるように構成された決定部と、
を備えることを特徴とする決定システム。 - 受信信号ベクトルから、複数の成分から構成される信号ベクトルを決定する方法であって、
前記複数の成分のうちの一成分を選択し、
候補符号の一覧のうちの、前記選択された成分に対する有力な符号を表す各候補符号に対して、前記選択された成分は前記候補符号に等しいという仮定の下で、前記候補符号に対する一の候補信号ベクトルを生成し、
複数の前記候補信号ベクトルの品質尺度に基づき、前記複数の候補信号ベクトルから前記信号ベクトルを決定し、前記品質尺度に応じて前記複数の候補信号ベクトルのうち最良である前記候補信号ベクトルが、決定すべき前記信号ベクトルとして選択される決定方法をコンピュータに実行させるコンピュータプログラム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61516004P | 2004-10-01 | 2004-10-01 | |
US60/615,160 | 2004-10-01 | ||
PCT/SG2005/000315 WO2006038886A1 (en) | 2004-10-01 | 2005-09-15 | Method and system for determining a signal vector and computer program element |
Publications (2)
Publication Number | Publication Date |
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JP2008515337A JP2008515337A (ja) | 2008-05-08 |
JP4763703B2 true JP4763703B2 (ja) | 2011-08-31 |
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JP2007534547A Expired - Fee Related JP4763703B2 (ja) | 2004-10-01 | 2005-09-15 | 信号ベクトルの決定方法及びシステム、並びにコンピュータプログラム要素 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080075022A1 (ja) |
EP (1) | EP1797726A4 (ja) |
JP (1) | JP4763703B2 (ja) |
CN (1) | CN100589597C (ja) |
TW (1) | TW200631348A (ja) |
WO (1) | WO2006038886A1 (ja) |
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- 2005-09-15 JP JP2007534547A patent/JP4763703B2/ja not_active Expired - Fee Related
- 2005-09-15 US US11/576,306 patent/US20080075022A1/en not_active Abandoned
- 2005-09-15 EP EP05782811A patent/EP1797726A4/en not_active Withdrawn
- 2005-09-15 WO PCT/SG2005/000315 patent/WO2006038886A1/en active Application Filing
- 2005-09-16 TW TW094132013A patent/TW200631348A/zh unknown
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Also Published As
Publication number | Publication date |
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WO2006038886A1 (en) | 2006-04-13 |
US20080075022A1 (en) | 2008-03-27 |
EP1797726A1 (en) | 2007-06-20 |
JP2008515337A (ja) | 2008-05-08 |
EP1797726A4 (en) | 2011-04-27 |
TW200631348A (en) | 2006-09-01 |
CN101053263A (zh) | 2007-10-10 |
CN100589597C (zh) | 2010-02-10 |
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