WO2004088867A1 - 受信装置 - Google Patents
受信装置 Download PDFInfo
- Publication number
- WO2004088867A1 WO2004088867A1 PCT/JP2003/004124 JP0304124W WO2004088867A1 WO 2004088867 A1 WO2004088867 A1 WO 2004088867A1 JP 0304124 W JP0304124 W JP 0304124W WO 2004088867 A1 WO2004088867 A1 WO 2004088867A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- beamformer
- averaging
- unit
- correlation
- receiving device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
Definitions
- the present invention relates to a path detection and arrival direction estimation technique in a receiving device of a wireless communication device using an array antenna.
- the base station of a DS-CDMA mobile communication system uses RAKE reception, which collects and combines radio waves from a mobile device through multiple paths with different delay times due to reflection from buildings. It has been.
- the receiving apparatus that performs RAKE reception is provided with a searcher that performs a path search for determining the phase of the despreading code given to each RAKE binger, that is, the path timing.
- correlation processing is performed by a matched filter that correlates with a predetermined code, the output is integrated, a delay profile is obtained, and the peak in the delay profile is detected to detect the path timing. Have gained.
- An array antenna is introduced into the above-described base station radio communication apparatus so that the directivity of the antenna (the direction of the beam formed by the beamformer) can be adaptively changed according to the direction of the mobile station. It is expected that more mobile units will be accommodated. In this case, the transmission power of the mobile station is controlled to be lower, and therefore, it is necessary to further improve the accuracy of path detection in the searcher.
- Patent Literature 1 below describes, as a power value, the result of correlation processing for each of the signals received by a plurality of antennas constituting an array antenna. It is stated that the delay profile is obtained from the sum after conversion. Patent Document 1 further calculates the inter-antenna correlation from a plurality of correlation processing results, and uses the sum of the calculated values as the initial value of the beamformer of the receiving unit. It is described that the convergence is made immediately after being taken so that reception can be started. Patent Document 1
- An object of the present invention is to improve the path detection accuracy of a receiving device employing an array antenna.
- a receiving apparatus including: a receiving unit configured to perform RAKE reception including a plurality of fingers; and a searcher that detects path timing given to each finger of the receiving unit.
- Each finger has a first beamformer that performs beamforming from received signals from a plurality of antennas constituting an array antenna, and a sparser is provided for each of the received signals from the plurality of antennas.
- a plurality of correlation processing units for performing a correlation process; an arrival direction calculation unit for estimating an arrival direction based on outputs of the plurality of correlation processing units;
- the second beamformer performs beamforming on the second beamformer and the output of the second beamformer.
- a path detection unit that detects path timing based on the received signal.
- the estimation result of the arrival direction calculator can be used in the first beamformer.
- the estimation result of the direction-of-arrival calculation unit can also be used in the third beamformer provided in the transmission device.
- the above-mentioned receiving apparatus further includes a delay circuit provided after the plurality of correlation processing units and before the second beamformer.
- the above-mentioned receiving apparatus is provided after the second beamformer and before the path detection unit, and performs a first averaging for averaging the output of the second beamformer with a first averaging time constant.
- An arrival direction estimating unit wherein the operation unit estimates the direction of arrival by using the outputs of the plurality of correlation processing units as inputs, and outputs the output of the operation unit different from the first averaging time constant. It is also preferable to include a second averaging unit for averaging with an averaging time constant of 2.
- FIG. 1 is a diagram showing a configuration of a receiver according to one embodiment of the present invention.
- FIG. 2 is a diagram showing an example of a process in the searcher 12 of FIG.
- FIG. 3 shows another example of the processing in the searcher 12 of Fig. 1; and Figs. 4a, 4b, 5a and 5b show the relationship between the delay profile averaging time and the D0A profile averaging time.
- FIG. 1 shows the configuration of a receiver according to one embodiment of the present invention.
- the radio frequency signals received by each of the array antennas 10 are After being converted to a baseband signal consisting of I and Q phases by a frequency converter and quadrature demodulator (not shown), it is sampled and quantized by an AZD converter (not shown) and converted to a complex digital base spanned signal.
- the signals are input to a searcher 12 for detecting path timing and a reception signal processing unit 14 for performing adaptive reception.
- the searcher 12 of the present invention inputs signals of all antennas of the array antenna 10 and takes a correlation with a spread code by a correlation processing unit 16 provided for each antenna.
- the signal after correlation processing of each antenna is formed into a beam in the direction of arrival of the signal by the beamformer 18, and is subjected to power conversion (20) and time averaging (22) to generate a delay profile 24. Then, a path detection having a beam forming gain is performed (26).
- the weight applied to the beamformer 18 on the searcher 12 side estimates the direction of arrival (D0A) using the signal after correlation processing for each antenna in the searcher 12 (28), and converts it into a weight ( 30) I get it.
- the path timing information estimated by the searcher 12 is used for finger assignment 31 and despreading processing 32 by the array antenna reception signal processing unit 14, and the D0A information is used as the D0A information of the eight update unit 34 of the beamformer 33. Can be used as a starting point or as its initial value.
- the reception processing in the reception signal processing unit 14 can be started immediately after synchronization is obtained by the searcher 12. It is also possible to use the D0A information obtained by the searcher as D0A information for a beamformer provided in a transmitting unit (not shown).
- FIG. 1 A specific configuration for performing the processing in the searcher 12 described with reference to FIG. 1 is shown in the block diagram of FIG.
- the in-phase processing 16 in FIG. 1 is performed by the matched filter 40 and the in-phase adder 42 in FIG.
- the signal received by the array antenna is subjected to a correlation operation with a spread code by a matched filter 40 for each antenna, and an in-phase adder 42 adds the symbol phases in phase.
- the signal of each antenna after the in-phase addition is beamformed (18).
- the signal after beamforming is converted to power by multiplying it by complex conjugate, time-averaged to generate a power delay profile (44), and an effective path is detected based on threshold decision ( 26).
- D0A can be estimated by estimating the received phase difference between the antennas for the signal with the same phase added for each antenna.
- the adjacent antennas are complex-multiplied as in the D0A estimation calculation unit 45 shown in detail in Fig. 2 (46) (however, the reference side is complex as indicated by *).
- Conjugates are used, and since they are equally spaced, all outputs are complex-added (48) and time-averaged (50), and D0A estimation is performed by finding the correlation between antennas.
- D0A profile the profile obtained by performing time averaging and required for performing D0A estimation is referred to as D0A profile.
- the D0A estimated value is converted to a weight (Fig. 1: 30) and used as the beamforming weight for generating the delay profile. Further, the D0A detection unit 52 can obtain D0A information for each path by referring to the value of the D0A open file at the timing of the detected path.
- FIG. 3 shows another example of the process in the searcher.
- the beamformer weight is set only after the first D0A estimation is performed.
- profile generation by beamforming cannot be performed.
- searching for a signal that is transmitted continuously it does not matter much, but when searching for a complete signal consisting of a short single burst, the signal is already detected when the weight can be estimated.
- beamforming cannot be performed due to the completion of the process, and path detection or signal detection cannot be performed due to the effect of the array antenna. Therefore, in the example shown in FIG. 3, a delay circuit 60 is provided in front of the beamformer 18, and the beamforming is always performed by estimating D0A and delaying the signal until a weight is obtained. The path detection can be performed by using this function, and the completion signal can be received.
- the averaging time of the delay profile file in the profile generation unit 44 and the averaging time of the D0A estimation in the D0A profile generation unit 50 be different. This is because if the averaging time of the delay profile and the averaging time of the D0A estimation are the same and they are synchronized, the origin of both profiles is the same signal containing noise. This is because forming results, and even if beamforming is performed, the noise suppression effect is reduced.
- Figures 4a and 4b show the averaging time for the moving average
- Figures 5a and 5b show the averaging time for the exponential average.
- the searcher of the present invention performs beam formation using an array antenna to generate a delay profile and performs path detection, so that highly accurate path search operation and arrival direction estimation can be performed.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB038252619A CN100444531C (zh) | 2003-03-31 | 2003-03-31 | 接收装置 |
PCT/JP2003/004124 WO2004088867A1 (ja) | 2003-03-31 | 2003-03-31 | 受信装置 |
JP2004570175A JP4148950B2 (ja) | 2003-03-31 | 2003-03-31 | 受信装置 |
EP03715673A EP1564899A4 (en) | 2003-03-31 | 2003-03-31 | RECEPTION DEVICE |
US11/112,205 US7505509B2 (en) | 2003-03-31 | 2005-04-22 | Receiving communication apparatus using array antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/004124 WO2004088867A1 (ja) | 2003-03-31 | 2003-03-31 | 受信装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/112,205 Continuation US7505509B2 (en) | 2003-03-31 | 2005-04-22 | Receiving communication apparatus using array antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004088867A1 true WO2004088867A1 (ja) | 2004-10-14 |
Family
ID=33105360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/004124 WO2004088867A1 (ja) | 2003-03-31 | 2003-03-31 | 受信装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7505509B2 (ja) |
EP (1) | EP1564899A4 (ja) |
JP (1) | JP4148950B2 (ja) |
CN (1) | CN100444531C (ja) |
WO (1) | WO2004088867A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007512763A (ja) * | 2003-11-20 | 2007-05-17 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 空間統合探索チャネル推定器 |
CN100388846C (zh) * | 2005-07-08 | 2008-05-14 | 中兴通讯股份有限公司 | 一种移动通信智能天线系统中的下行链路波束赋形方法 |
CN100401650C (zh) * | 2004-12-24 | 2008-07-09 | 中兴通讯股份有限公司 | 一种智能天线自适应波束形成及数据解调方法 |
CN101084633B (zh) * | 2004-12-17 | 2011-05-18 | 华为技术有限公司 | 多径搜索器、细化处理单元及进行波达方向估计的方法 |
CN107844126A (zh) * | 2016-09-20 | 2018-03-27 | 卡西欧计算机株式会社 | 方向估计装置、方向估计方法、飞行装置、飞行方法以及记录介质 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2004088867A1 (ja) * | 2003-03-31 | 2004-10-14 | Fujitsu Limited | 受信装置 |
CN101291165B (zh) * | 2007-04-17 | 2012-11-14 | 电信科学技术研究院 | 一种多天线系统的序列检测方法和装置 |
CA2693012C (en) * | 2009-09-18 | 2015-06-23 | Her Majesty The Queen In Right Of Canada As Represented By The Ministeof National Defence | Signal detection in fading environments |
US8340588B2 (en) * | 2009-09-18 | 2012-12-25 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence | Handheld synthetic antenna array |
WO2015144233A1 (en) | 2014-03-27 | 2015-10-01 | Telefonaktiebolaget L M Ericsson (Publ) | A beam forming receiver |
WO2016007138A1 (en) * | 2014-07-08 | 2016-01-14 | New York University | System, method and computer-readable medium for estimating direction of arrival of a signal incident on at least one antenna array |
EP3229381B1 (en) * | 2014-12-31 | 2019-04-24 | Huawei Technologies Co. Ltd. | Array antenna beam adjustment device and method |
US11616563B2 (en) * | 2020-04-06 | 2023-03-28 | Samsung Electronics Co., Ltd. | Systems and methods for updating beamforming codebooks for angle-of-arrival estimation using compressive sensing in wireless communications |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000059269A (ja) * | 1998-08-05 | 2000-02-25 | Nec Corp | パイロット信号を含む受信信号の復調方法およびその装置 |
JP2002084216A (ja) * | 2000-09-06 | 2002-03-22 | Fujitsu Ltd | アレーアンテナ無線通信装置 |
JP2002237766A (ja) * | 2001-02-08 | 2002-08-23 | Nec Corp | 適応アンテナ受信装置 |
JP2003008483A (ja) * | 2001-06-18 | 2003-01-10 | Nec Corp | アダプティブアレイアンテナ受信装置 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2671595B2 (ja) * | 1990-10-25 | 1997-10-29 | 日本電気株式会社 | 復調装置 |
JPH0974372A (ja) * | 1995-09-04 | 1997-03-18 | Matsushita Electric Ind Co Ltd | スペクトラム拡散無線伝送受信装置 |
US6188736B1 (en) * | 1997-12-23 | 2001-02-13 | At&T Wireless Svcs. Inc. | Near-optimal low-complexity decoding of space-time codes for fixed wireless applications |
JP3233088B2 (ja) * | 1998-01-22 | 2001-11-26 | 松下電器産業株式会社 | 指向性制御アンテナ装置 |
JPH11251959A (ja) * | 1998-03-05 | 1999-09-17 | Fujitsu Ltd | 干渉キャンセラ装置及び無線通信装置 |
JP3716398B2 (ja) * | 1998-03-05 | 2005-11-16 | 富士通株式会社 | アレーアンテナによる到来方向推定方法及び該方法を用いたds−cdma受信装置 |
JPH11266180A (ja) * | 1998-03-18 | 1999-09-28 | Fujitsu Ltd | 無線基地局のアレーアンテナシステム |
JP3406831B2 (ja) * | 1998-03-19 | 2003-05-19 | 富士通株式会社 | 無線基地局のアレーアンテナシステム |
JP3465739B2 (ja) * | 1998-04-07 | 2003-11-10 | 日本電気株式会社 | Cdma適応アンテナ受信装置及び通信システム |
JP2000013290A (ja) * | 1998-06-24 | 2000-01-14 | Matsushita Electric Ind Co Ltd | ダイバーシチ通信装置及び方法 |
JP3028804B2 (ja) * | 1998-07-03 | 2000-04-04 | 日本電気株式会社 | Cdma受信方法及び受信回路 |
JP3985883B2 (ja) * | 1998-10-09 | 2007-10-03 | 松下電器産業株式会社 | 電波到来方向推定アンテナ装置 |
GB2344221B (en) * | 1998-11-30 | 2003-09-17 | Fujitsu Ltd | Receiving apparatus including adaptive beamformers |
US6351238B1 (en) * | 1999-02-23 | 2002-02-26 | Matsushita Electric Industrial Co., Ltd. | Direction of arrival estimation apparatus and variable directional signal receiving and transmitting apparatus using the same |
JP3344478B2 (ja) * | 1999-07-16 | 2002-11-11 | 日本電気株式会社 | Cdmaセルラシステムにおけるパスサーチ回路 |
JP3872953B2 (ja) * | 1999-12-27 | 2007-01-24 | 株式会社東芝 | アダプティブアンテナを用いた無線通信装置 |
JP2001203620A (ja) * | 2000-01-19 | 2001-07-27 | Matsushita Electric Ind Co Ltd | 無線基地局装置及び無線通信方法 |
JP3515033B2 (ja) * | 2000-01-19 | 2004-04-05 | 松下電器産業株式会社 | 干渉信号除去装置及び干渉信号除去方法 |
JP2001203619A (ja) * | 2000-01-19 | 2001-07-27 | Matsushita Electric Ind Co Ltd | 無線基地局装置及び無線通信方法 |
WO2001067627A1 (fr) * | 2000-03-06 | 2001-09-13 | Fujitsu Limited | Recepteur amcr et detecteur d'un tel recepteur |
JP4509297B2 (ja) * | 2000-04-26 | 2010-07-21 | 三菱電機株式会社 | スペクトル拡散受信装置 |
JP4392109B2 (ja) * | 2000-05-12 | 2009-12-24 | パナソニック株式会社 | 到来方向推定装置 |
JP3660209B2 (ja) * | 2000-05-25 | 2005-06-15 | 松下電器産業株式会社 | 無線通信装置 |
US6421000B1 (en) * | 2000-06-08 | 2002-07-16 | Rockwell Collins, Inc. | GPS multipath mitigation using a multi-element antenna array |
JP3699883B2 (ja) * | 2000-06-29 | 2005-09-28 | 松下電器産業株式会社 | 無線基地局装置及び無線通信方法 |
JP2002084217A (ja) * | 2000-09-08 | 2002-03-22 | Matsushita Electric Ind Co Ltd | 基地局装置および到来方向推定方法 |
US7003324B2 (en) * | 2000-12-21 | 2006-02-21 | Matsushita Electric Industrial Co., Ltd. | Base station apparatus with reception and diversity weight combining |
JP4744725B2 (ja) * | 2001-05-25 | 2011-08-10 | 三菱電機株式会社 | 干渉キャンセラ |
JP3888189B2 (ja) * | 2002-03-12 | 2007-02-28 | 松下電器産業株式会社 | 適応アンテナ基地局装置 |
US7295637B2 (en) * | 2002-11-04 | 2007-11-13 | Broadcom Corporation | Method and apparatus for diversity combining and co-channel interference suppression |
WO2004088867A1 (ja) * | 2003-03-31 | 2004-10-14 | Fujitsu Limited | 受信装置 |
-
2003
- 2003-03-31 WO PCT/JP2003/004124 patent/WO2004088867A1/ja active Application Filing
- 2003-03-31 EP EP03715673A patent/EP1564899A4/en not_active Withdrawn
- 2003-03-31 CN CNB038252619A patent/CN100444531C/zh not_active Expired - Fee Related
- 2003-03-31 JP JP2004570175A patent/JP4148950B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-22 US US11/112,205 patent/US7505509B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000059269A (ja) * | 1998-08-05 | 2000-02-25 | Nec Corp | パイロット信号を含む受信信号の復調方法およびその装置 |
JP2002084216A (ja) * | 2000-09-06 | 2002-03-22 | Fujitsu Ltd | アレーアンテナ無線通信装置 |
JP2002237766A (ja) * | 2001-02-08 | 2002-08-23 | Nec Corp | 適応アンテナ受信装置 |
JP2003008483A (ja) * | 2001-06-18 | 2003-01-10 | Nec Corp | アダプティブアレイアンテナ受信装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1564899A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007512763A (ja) * | 2003-11-20 | 2007-05-17 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 空間統合探索チャネル推定器 |
CN101084633B (zh) * | 2004-12-17 | 2011-05-18 | 华为技术有限公司 | 多径搜索器、细化处理单元及进行波达方向估计的方法 |
CN100401650C (zh) * | 2004-12-24 | 2008-07-09 | 中兴通讯股份有限公司 | 一种智能天线自适应波束形成及数据解调方法 |
CN100388846C (zh) * | 2005-07-08 | 2008-05-14 | 中兴通讯股份有限公司 | 一种移动通信智能天线系统中的下行链路波束赋形方法 |
CN107844126A (zh) * | 2016-09-20 | 2018-03-27 | 卡西欧计算机株式会社 | 方向估计装置、方向估计方法、飞行装置、飞行方法以及记录介质 |
Also Published As
Publication number | Publication date |
---|---|
EP1564899A1 (en) | 2005-08-17 |
US20050185703A1 (en) | 2005-08-25 |
JPWO2004088867A1 (ja) | 2006-07-06 |
CN100444531C (zh) | 2008-12-17 |
US7505509B2 (en) | 2009-03-17 |
CN1701526A (zh) | 2005-11-23 |
EP1564899A4 (en) | 2009-12-02 |
JP4148950B2 (ja) | 2008-09-10 |
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