JP2006014027A5 - - Google Patents
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- JP2006014027A5 JP2006014027A5 JP2004189748A JP2004189748A JP2006014027A5 JP 2006014027 A5 JP2006014027 A5 JP 2006014027A5 JP 2004189748 A JP2004189748 A JP 2004189748A JP 2004189748 A JP2004189748 A JP 2004189748A JP 2006014027 A5 JP2006014027 A5 JP 2006014027A5
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Claims (19)
各アンテナからの受信信号を処理するブランチ毎にチャネル推定するチャネル推定手段と、
チャネル推定結果に基づいて各ブランチの合成比を決定し、各受信信号を重み付けして合成する合成手段と、
合成された信号を復調する復調手段とを備え、
前記チャネル推定手段はチャネル推定を更新し、前記合成手段はチャネル推定の更新に追従して各ブランチの合成比を変化させる、
ことを特徴とする無線通信装置。 A wireless communication device that receives received signals from a plurality of antennas,
Channel estimation means for estimating a channel for each branch for processing a received signal from each antenna;
A combining means for determining a combining ratio of each branch based on the channel estimation result, weighting and combining each received signal;
Demodulating means for demodulating the synthesized signal,
The channel estimation means updates the channel estimation, and the combining means changes the combination ratio of each branch following the update of the channel estimation;
A wireless communication apparatus.
ことを特徴とする請求項１に記載の無線通信装置。 The channel estimation means updates the channel estimation for each branch;
The wireless communication apparatus according to claim 1.
前記チャネル推定手段は、再変調信号と各アンテナからの受信信号の比較に基づいてチャネル推定を更新する、
ことを特徴とする請求項１に記載の無線通信装置。 The demodulating means remodulates the demodulated signal of the synthesized signal,
The channel estimation means updates the channel estimate based on a comparison of the remodulated signal and the received signal from each antenna;
The wireless communication apparatus according to claim 1.
前記チャネル推定部は、ベースバンドＩＱ信号のデータ・シンボルを用いたチャネル推定値の更新を行ない、
前記合成手段はチャネル推定の更新に追従して各ブランチの合成比を変化させる、
ことを特徴とする請求項１に記載の無線通信装置。 A wireless communication device for combining and receiving a baseband IQ signal,
The channel estimation unit updates a channel estimation value using data symbols of a baseband IQ signal,
The combining means changes the combining ratio of each branch following the update of the channel estimation.
The wireless communication apparatus according to claim 1.
前記チャネル推定部は、ベースバンド信号のデータＯＦＤＭシンボルを用いたチャネル推定値の更新を行ない、
前記合成手段はチャネル推定の更新に追従してサブキャリヤ毎の各ブランチの合成比を変化させる、
ことを特徴とする請求項１に記載の無線通信装置。 A wireless communication apparatus that receives a baseband OFDM signal by combining antennas for each subcarrier,
The channel estimation unit updates a channel estimation value using a data OFDM symbol of a baseband signal,
The combining means changes the combining ratio of each branch for each subcarrier following the update of the channel estimation.
The wireless communication apparatus according to claim 1.
前記チャネル推定手段は、再変調信号と各アンテナからのＯＦＤＭ受信信号をサブキャリヤ毎に比較してチャネル推定を更新する、
ことを特徴とする請求項５に記載の無線通信装置。 The demodulating means remodulates the demodulated signal of the synthesized signal,
The channel estimation means updates the channel estimation by comparing the remodulated signal and the OFDM received signal from each antenna for each subcarrier.
The wireless communication apparatus according to claim 5.
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関手段と、
各ブランチの自己相関を合成する手段と、
各ブランチの自己相関を合成した信号を基に信号を発見し同期を獲得する同期手段と、
獲得された同期に基づいて各受信信号を処理する受信処理手段と、
を具備することを特徴とする無線通信装置。 A wireless communication device that selects or combines received signals from a plurality of antennas to receive diversity reception or MIMO reception,
Autocorrelation means for taking the autocorrelation of the preamble signal for each branch for processing the received signal from each antenna;
Means for synthesizing the autocorrelation of each branch;
Synchronization means for finding a signal based on a signal obtained by synthesizing the autocorrelation of each branch and acquiring synchronization;
Reception processing means for processing each received signal based on the acquired synchronization;
A wireless communication apparatus comprising:
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関手段と、
各ブランチの自己相関を合成する手段と、
各ブランチの自己相関を合成した信号を基に周波数誤差を推定する周波数誤差推定手段と、
推定された周波数誤差に基づいて各受信信号の周波数誤差を補正する周波数誤差補正手段と、
周波数誤差が補正された各受信信号を処理する受信処理手段と、
を具備することを特徴とする無線通信装置。 A wireless communication device that selects or combines received signals from a plurality of antennas to receive diversity reception or MIMO reception,
Autocorrelation means for taking the autocorrelation of the preamble signal for each branch for processing the received signal from each antenna;
Means for synthesizing the autocorrelation of each branch;
A frequency error estimating means for estimating a frequency error based on a signal obtained by synthesizing the autocorrelation of each branch;
Frequency error correction means for correcting the frequency error of each received signal based on the estimated frequency error;
Reception processing means for processing each received signal with the frequency error corrected;
A wireless communication apparatus comprising:
ことを特徴とする請求項７に記載の無線通信装置。 The synchronization means acquires synchronization based on a combined autocorrelation signal obtained by adding an autocorrelation signal in each branch in one branch, and supplies the synchronization to each other branch.
The wireless communication apparatus according to claim 7.
ことを特徴とする請求項７に記載の無線通信装置。 The frequency error correction means obtains a frequency error based on a combined autocorrelation signal obtained by adding an autocorrelation signal in each branch in one branch, and supplies the frequency error to each other branch.
The wireless communication apparatus according to claim 7.
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関手段と、
各ブランチの自己相関を外部出力する手段と、
外部出力先において、各ブランチの自己相関を合成した信号を基に獲得された同期又は周波数誤差を入力する手段と、
該入力された同期に基づいて各受信信号の同期をとり、又は周波数誤差に基づいて各受信信号の周波数誤差を補正する手段と、
周波数誤差が補正された各受信信号を処理する受信処理手段と、
を具備することを特徴とする無線通信装置。 A wireless communication device that selects or combines received signals from a plurality of antennas to receive diversity reception or MIMO reception,
Autocorrelation means for taking the autocorrelation of the preamble signal for each branch for processing the received signal from each antenna;
Means for outputting the autocorrelation of each branch externally;
Means for inputting synchronization or frequency error acquired based on a signal obtained by synthesizing the autocorrelation of each branch at an external output destination;
Means for synchronizing each received signal based on the inputted synchronization, or correcting the frequency error of each received signal based on the frequency error;
Reception processing means for processing each received signal with the frequency error corrected;
A wireless communication apparatus comprising:
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号から得られた自己相関を入力する手段と、
各ブランチの自己相関を合成した信号を基に、信号を発見して同期を獲得し、又は周波数誤差を推定する手段と、
得られた同期又は周波数誤差を出力する手段と、
を具備することを特徴とする同期装置。 A synchronization device for a radio communication device that selects or combines received signals from a plurality of antennas to receive diversity reception or MIMO reception,
Means for inputting the autocorrelation obtained from the preamble signal for each branch processing the received signal from each antenna;
Based on a signal obtained by synthesizing the autocorrelation of each branch, means for finding a signal and acquiring synchronization, or estimating a frequency error;
Means for outputting the obtained synchronization or frequency error;
A synchronization device comprising:
請求項１２に記載の同期回路を備える、
ことを特徴とする無線通信装置。 A wireless communication device that selects or combines received signals from a plurality of antennas to receive diversity reception or MIMO reception,
The synchronization circuit according to claim 12 is provided.
A wireless communication apparatus.
各アンテナからの受信信号を処理するブランチ毎にチャネル推定するチャネル推定ステップと、
チャネル推定結果に基づいて各ブランチの合成比を決定し、各受信信号を重み付けして合成する合成ステップと、
合成された信号を復調する復調ステップとを備え、
前記チャネル推定ステップではチャネル推定を更新し、前記合成ステップではチャネル推定の更新に追従して各ブランチの合成比を変化させる、
ことを特徴とする無線通信方法。 A wireless communication method for receiving received signals from a plurality of antennas,
A channel estimation step for estimating a channel for each branch for processing a received signal from each antenna;
A combining step of determining a combining ratio of each branch based on the channel estimation result and weighting and combining each received signal;
A demodulation step of demodulating the synthesized signal,
In the channel estimation step, the channel estimation is updated, and in the synthesis step, the synthesis ratio of each branch is changed following the update of the channel estimation.
A wireless communication method.
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関ステップと、
各ブランチの自己相関を合成するステップと、
各ブランチの自己相関を合成した信号を基に信号を発見し同期を獲得する同期ステップと、
獲得された同期に基づいて各受信信号を処理する受信処理ステップと、
を具備することを特徴とする無線通信方法。 A radio communication method for selecting or combining received signals from a plurality of antennas to receive diversity reception or MIMO reception,
An autocorrelation step for taking the autocorrelation of the preamble signal for each branch processing the received signal from each antenna;
Synthesizing the autocorrelation of each branch;
A synchronization step for finding a signal based on a signal obtained by synthesizing the autocorrelation of each branch and acquiring synchronization;
Receiving processing steps for processing each received signal based on the acquired synchronization;
A wireless communication method comprising:
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関ステップと、
各ブランチの自己相関を合成するステップと、
各ブランチの自己相関を合成した信号を基に周波数誤差を推定する周波数誤差推定ステップと、
推定された周波数誤差に基づいて各受信信号の周波数誤差を補正する周波数誤差補正ステップと、
周波数誤差が補正された各受信信号を処理する受信処理ステップと、
を具備することを特徴とする無線通信方法。 A radio communication method for selecting or combining received signals from a plurality of antennas to receive diversity reception or MIMO reception,
An autocorrelation step for taking the autocorrelation of the preamble signal for each branch processing the received signal from each antenna;
Synthesizing the autocorrelation of each branch;
A frequency error estimation step for estimating a frequency error based on a signal obtained by synthesizing the autocorrelation of each branch;
A frequency error correction step for correcting the frequency error of each received signal based on the estimated frequency error;
A reception processing step for processing each received signal with the frequency error corrected;
A wireless communication method comprising:
各アンテナからの受信信号を処理するブランチ毎にチャネル推定するチャネル推定手順と、
チャネル推定結果に基づいて各ブランチの合成比を決定し、各受信信号を重み付けして合成する合成手順と、
合成された信号を復調する復調手順を実行させ、
前記チャネル推定手順ではチャネル推定を更新し、前記合成手順ではチャネル推定の更新に追従して各ブランチの合成比を変化させる、
ことを特徴とするコンピュータ・プログラム。 A computer program written in a computer-readable format to execute processing for receiving signals received from a plurality of antennas on a computer ,
A channel estimation procedure for estimating a channel for each branch for processing a received signal from each antenna;
A synthesis procedure for determining a synthesis ratio of each branch based on a channel estimation result, weighting each received signal, and synthesizing,
Run a demodulation procedure to demodulate the combined signal ,
In the channel estimation procedure, the channel estimation is updated, and in the synthesis procedure, the synthesis ratio of each branch is changed following the update of the channel estimation.
A computer program characterized by the above.
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関手順と、
各ブランチの自己相関を合成する手順と、
各ブランチの自己相関を合成した信号を基に信号を発見し同期を獲得する同期手順と、
獲得された同期に基づいて各受信信号を処理する受信処理手順と、
を実行させることを特徴とするコンピュータ・プログラム。 A computer program written in a computer-readable format so as to execute processing for diversity reception or MIMO reception on a computer by selecting or combining received signals from a plurality of antennas ,
An autocorrelation procedure for taking the autocorrelation of the preamble signal for each branch processing the received signal from each antenna;
A procedure for synthesizing the autocorrelation of each branch;
A synchronization procedure for finding and acquiring synchronization based on a signal obtained by synthesizing the autocorrelation of each branch,
A reception processing procedure for processing each received signal based on the acquired synchronization;
A computer program for executing
各アンテナからの受信信号を処理するブランチ毎にプリアンブル信号の自己相関をとる自己相関手順と、
各ブランチの自己相関を合成する手順と、
各ブランチの自己相関を合成した信号を基に周波数誤差を推定する周波数誤差推定手順と、
推定された周波数誤差に基づいて各受信信号の周波数誤差を補正する周波数誤差補正手順と、
周波数誤差が補正された各受信信号を処理する受信処理手順と、
を実行させることを特徴とするコンピュータ・プログラム。 A computer program written in a computer-readable format so as to execute processing for diversity reception or MIMO reception on a computer by selecting or combining received signals from a plurality of antennas ,
An autocorrelation procedure for taking the autocorrelation of the preamble signal for each branch processing the received signal from each antenna;
A procedure for synthesizing the autocorrelation of each branch;
A frequency error estimation procedure for estimating a frequency error based on a signal obtained by synthesizing the autocorrelation of each branch;
A frequency error correction procedure for correcting the frequency error of each received signal based on the estimated frequency error;
A reception processing procedure for processing each received signal in which the frequency error is corrected;
A computer program for executing
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004189748A JP4572601B2 (en) | 2004-06-28 | 2004-06-28 | Wireless communication apparatus, wireless communication method, and computer program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004189748A JP4572601B2 (en) | 2004-06-28 | 2004-06-28 | Wireless communication apparatus, wireless communication method, and computer program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006014027A JP2006014027A (en) | 2006-01-12 |
| JP2006014027A5 true JP2006014027A5 (en) | 2007-07-26 |
| JP4572601B2 JP4572601B2 (en) | 2010-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004189748A Expired - Fee Related JP4572601B2 (en) | 2004-06-28 | 2004-06-28 | Wireless communication apparatus, wireless communication method, and computer program |
Country Status (1)
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| JP (1) | JP4572601B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4915347B2 (en) * | 2005-06-21 | 2012-04-11 | パナソニック株式会社 | Diversity combining method and diversity receiver |
| JP4182448B2 (en) | 2006-07-27 | 2008-11-19 | ソニー株式会社 | Receiving device, receiving method, program, and recording medium |
| JP2008085841A (en) * | 2006-09-28 | 2008-04-10 | Sony Corp | Receiver, and receiving method |
| JP4445976B2 (en) | 2007-02-22 | 2010-04-07 | Ｎｅｃアクセステクニカ株式会社 | Wireless communication apparatus, wireless communication system, and program |
| US9344897B2 (en) | 2007-03-13 | 2016-05-17 | Qualcomm Incorporated | Estimating timing and frequency information for multiple channel wireless communication systems |
| JPWO2009072306A1 (en) | 2007-12-07 | 2011-04-21 | パナソニック株式会社 | Diversity receiving apparatus and diversity receiving method |
| JP5214307B2 (en) * | 2008-04-10 | 2013-06-19 | 株式会社東芝 | Signal detection apparatus, radio communication apparatus and method |
| TWI475847B (en) | 2008-04-16 | 2015-03-01 | Koninkl Philips Electronics Nv | Passive radar for presence and motion detection |
| JP4725628B2 (en) * | 2008-10-10 | 2011-07-13 | ソニー株式会社 | Reception device, reception method, program, and wireless communication system |
| JP5918667B2 (en) * | 2012-09-18 | 2016-05-18 | ルネサスエレクトロニクス株式会社 | Reception device, communication device, and communication system |
| WO2024036630A1 (en) * | 2022-08-19 | 2024-02-22 | Nvidia Corporation | Signal processing in parallel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10257013A (en) * | 1997-03-14 | 1998-09-25 | Toshiba Corp | Receiver |
| JP3548085B2 (en) * | 2000-04-03 | 2004-07-28 | 三洋電機株式会社 | Radio receiving apparatus and response vector estimation method |
| JP2002077015A (en) * | 2000-09-04 | 2002-03-15 | Sanyo Electric Co Ltd | Wireless base station and directivity control method in the wireless base station |
| JP4019752B2 (en) * | 2002-03-12 | 2007-12-12 | ソニー株式会社 | Wireless communication apparatus and method, and computer program |
| JP3791473B2 (en) * | 2002-08-07 | 2006-06-28 | Ｋｄｄｉ株式会社 | OFDM receiver for performing propagation path estimation |
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2004
- 2004-06-28 JP JP2004189748A patent/JP4572601B2/en not_active Expired - Fee Related
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