JP2004096745A - 最大尤度事後確率検出器 - Google Patents
最大尤度事後確率検出器 Download PDFInfo
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- JP2004096745A JP2004096745A JP2003296341A JP2003296341A JP2004096745A JP 2004096745 A JP2004096745 A JP 2004096745A JP 2003296341 A JP2003296341 A JP 2003296341A JP 2003296341 A JP2003296341 A JP 2003296341A JP 2004096745 A JP2004096745 A JP 2004096745A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
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- Computer Networks & Wireless Communication (AREA)
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- Radio Transmission System (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
【解決手段】ML−APP検出器は、少なくとも1つのLLRユニットに結合された少なくとも1つのHxユニットを備える。Hxユニットは、受信することができる全ての可能なシンボルの一部分、すなわち特別な部分を生成し、生成したシンボル候補それぞれをLLRユニットに転送し、LLRユニットが、転送されたシンボル候補に対する変換操作を行って、特別な部分の一部分ではない別のシンボル候補を生成する。このようにすると、可能なシンボル候補全てがLLRユニットによって得られる。LLRユニットは、シンボル候補を、受信されたシンボルと比較して、コスト計算を行う。全ての可能なシンボル候補のコスト計算から、最小コストを生み出すシンボル候補が、最良の候補として選択される。次いで、選択された候補に関連するソフト情報を使用して、選択された候補に対してAPPデコーディングが行われる。このソフト情報は、LLRユニットによって生成される。
【選択図】図2
Description
Claims (10)
- シンボル候補のサブセットから、1セットの可能なシンボル候補を生成するための検出器と、
検出器に結合された少なくとも2つのアンテナと
を備える通信デバイス。 - 検出器が、シンボル候補の特別な部分セットからの候補に対する変換操作を行って、追加のシンボル候補を生成し、受信されたシンボルを、生成されたシンボル候補全てと比較することによってコストを計算するように構成された少なくとも1つのLLRユニットを備えるML−APP検出器である請求項1に記載の通信デバイス。
- ML−APP検出器がさらに、前記少なくとも1つのLLRユニットに結合された少なくとも1つのHxユニットを備え、前記少なくとも1つのHxユニットが、シンボル候補全てを生成するように構成されている請求項2に記載の通信デバイス。
- 前記少なくとも1つのLLRユニットが、利用可能モードと、ラン・モードと、利用不可能モードと、ダン・モードとを含む4つの操作モードを有する請求項2に記載の通信デバイス。
- さらに、
前記少なくとも1つのLLRそれぞれに結合されたレジスタを備え、レジスタに、受信されたシンボルが一時的に格納される請求項2に記載の通信デバイス。 - 前記少なくとも1つのLLRユニットが、選択されたシンボル候補の各ビット位置に関するハード決定値を求め、そのようなハード決定値が、選択されたシンボル候補に関連するソフト情報に基づいており、ソフト情報が、前記少なくとも1つのLLRユニットによって生成される請求項2に記載の通信デバイス。
- ML−APP検出器がさらに、前記少なくとも1つのLLRユニットに結合された少なくとも1つのHxユニットを備え、前記少なくとも1つのHxユニットが、シンボル候補の特別な部分セットを少なくとも生成するように構成されている請求項2に記載の通信デバイス。
- 受信されたシンボルを検出するための方法であって、
特定のデジタル変調スキームに関する可能な候補全てを生成するために、シンボル候補の特別な部分セットに対する変換操作を行う工程
を含む方法。 - 変換操作を行う工程がまた、
シンボルを受信する工程と、
シンボル候補の特別な部分セットを少なくとも生成する工程と
を含む請求項8に記載の方法。 - 生成されたシンボル候補のセットと、受信されたシンボルとからコストを計算する工程と、
検出されたシンボルとして、最小コストを生み出すシンボル候補を選択する工程と
を含む請求項8に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/231,980 US7609777B2 (en) | 2002-08-30 | 2002-08-30 | Maximum likelihood a posteriori probability detector |
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JP2004096745A true JP2004096745A (ja) | 2004-03-25 |
JP4347638B2 JP4347638B2 (ja) | 2009-10-21 |
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JP2003296341A Expired - Fee Related JP4347638B2 (ja) | 2002-08-30 | 2003-08-20 | 最大尤度事後確率検出器 |
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US (1) | US7609777B2 (ja) |
EP (1) | EP1394978B1 (ja) |
JP (1) | JP4347638B2 (ja) |
KR (1) | KR100987913B1 (ja) |
DE (1) | DE60309546T2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004282757A (ja) * | 2003-03-15 | 2004-10-07 | Lucent Technol Inc | 無線通信用球面復号器 |
WO2005050885A1 (ja) * | 2003-11-21 | 2005-06-02 | Matsushita Electric Industrial Co., Ltd. | マルチアンテナ受信装置、マルチアンテナ受信方法、マルチアンテナ送信装置及びマルチアンテナ通信システム |
KR100800853B1 (ko) | 2005-06-09 | 2008-02-04 | 삼성전자주식회사 | 통신 시스템에서 신호 수신 장치 및 방법 |
JP2009529304A (ja) * | 2006-03-30 | 2009-08-13 | インテル コーポレイション | 空間多重化信号を復号化するシステム、方法及び装置 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7782984B2 (en) * | 2002-08-30 | 2010-08-24 | Alcatel-Lucent Usa Inc. | Method of sphere decoding with low complexity and good statistical output |
EP1655878A1 (en) | 2004-11-03 | 2006-05-10 | Matsushita Electric Industrial Co., Ltd. | Method and transmitter structure reducing ambiguity by repetition rearrangement in the symbol domain |
WO2006048061A1 (en) | 2004-11-03 | 2006-05-11 | Matsushita Electric Industrial Co., Ltd. | Method and transmitter structure removing phase ambiguity by repetition rearrangement |
KR100892104B1 (ko) * | 2005-11-16 | 2009-04-08 | 삼성전자주식회사 | 다중 안테나 통신시스템에서 로그 우도 율 생성 장치 및방법 |
US7620397B2 (en) * | 2006-06-27 | 2009-11-17 | Motorola, Inc. | Method for managing scanning of channels in a wireless network |
US8116242B2 (en) * | 2006-07-18 | 2012-02-14 | Motorola Mobility, Inc. | Receiver having multi-antenna log likelihood ratio generation with channel estimation error |
KR100930522B1 (ko) * | 2006-12-22 | 2009-12-09 | 삼성전자주식회사 | 다중 입출력 무선통신 시스템에서 수신 장치 및 방법 |
US8432986B2 (en) | 2006-12-22 | 2013-04-30 | Samsung Electronics Co., Ltd. | Apparatus and method for receiving signals in multiple-input multiple-output wireless communication system |
US20080267306A1 (en) * | 2007-04-27 | 2008-10-30 | Texas Instruments Incorporated | Systems and Methods for Low-Complexity Maximum-Likelihood MIMO Detection |
US9209937B2 (en) * | 2007-06-28 | 2015-12-08 | Telefonaktiebolaget L M Ericsson (Publ) | Reliable decoding of a high-speed shared control channel |
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US8576955B2 (en) * | 2008-03-28 | 2013-11-05 | Qualcomm Incorporated | Architecture to handle concurrent multiple channels |
US8135087B2 (en) * | 2008-12-05 | 2012-03-13 | Electronics And Telecommunications Research Institute | Apparatus and method for signal detection using log likelihood ratio |
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KR101072559B1 (ko) * | 2009-10-28 | 2011-10-11 | 강릉원주대학교산학협력단 | 대수우도비를 산출하는 방법 및 복조 장치 |
WO2014040130A1 (en) * | 2012-09-12 | 2014-03-20 | Cohda Wireless Pty Ltd | Split radio architecture |
US10153935B2 (en) * | 2016-07-18 | 2018-12-11 | Intel Corporation | Apparatus, system and method of communicating a transmission according to a rotated 256 quadrature amplitude modulation (QAM) scheme |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03195129A (ja) * | 1989-12-22 | 1991-08-26 | Mitsubishi Electric Corp | 最尤系列推定装置 |
US5263053A (en) * | 1992-03-24 | 1993-11-16 | Novatel Communications Ltd. | Fractionally spaced maximum likelihood sequence estimation receiver |
JPH06232769A (ja) | 1993-02-05 | 1994-08-19 | Sony Corp | ビタビ復号方法およびその装置 |
US5675590A (en) * | 1994-11-23 | 1997-10-07 | At&T Wireless Services, Inc. | Cyclic trellis coded modulation |
DE69725995T2 (de) * | 1996-08-29 | 2004-11-11 | Cisco Technology, Inc., San Jose | Raumzeitliche signalverarbeitung für übertragungssysteme |
IL120210A (en) * | 1997-02-13 | 1999-12-31 | Dspc Tech Ltd | Synchronization system and method for digital communication systems |
US6058105A (en) | 1997-09-26 | 2000-05-02 | Lucent Technologies Inc. | Multiple antenna communication system and method thereof |
US6487255B1 (en) * | 1998-08-31 | 2002-11-26 | Ericsson Inc. | Information generation for coherent demodulation of differentially encoded signals |
US6944247B2 (en) * | 1999-11-19 | 2005-09-13 | Texas Instruments Incorporated | Plural circuit selection using role reversing control inputs |
US6556634B1 (en) * | 1999-02-10 | 2003-04-29 | Ericsson, Inc. | Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system |
US6891897B1 (en) * | 1999-07-23 | 2005-05-10 | Nortel Networks Limited | Space-time coding and channel estimation scheme, arrangement and method |
US6857101B1 (en) * | 1999-12-14 | 2005-02-15 | Intel Corporation | Apparatus and method of storing reference vector of state metric |
US6801579B1 (en) | 2000-03-09 | 2004-10-05 | Lucent Technologies Inc. | Method and wireless communication using unitary space-time signal constellations |
US20020051501A1 (en) * | 2000-04-28 | 2002-05-02 | Victor Demjanenko | Use of turbo-like codes for QAM modulation using independent I and Q decoding techniques and applications to xDSL systems |
US6289000B1 (en) * | 2000-05-19 | 2001-09-11 | Intellon Corporation | Frame control encoder/decoder for robust OFDM frame transmissions |
US20080095121A1 (en) * | 2002-05-14 | 2008-04-24 | Shattil Steve J | Carrier interferometry networks |
US7035354B2 (en) * | 2000-12-08 | 2006-04-25 | International Business Machine Corporation | CDMA multi-user detection with a real symbol constellation |
US6944242B2 (en) * | 2001-01-04 | 2005-09-13 | Comsys Communication & Signal Processing Ltd. | Apparatus for and method of converting soft symbol information to soft bit information |
US6977977B1 (en) * | 2001-02-20 | 2005-12-20 | Comsys Communication & Signal Processing Ltd. | Compensation of I/Q gain mismatch in a communications receiver |
JP3714910B2 (ja) * | 2001-02-20 | 2005-11-09 | 株式会社エヌ・ティ・ティ・ドコモ | ターボ受信方法及びその受信機 |
US7110349B2 (en) * | 2001-03-06 | 2006-09-19 | Brn Phoenix, Inc. | Adaptive communications methods for multiple user packet radio wireless networks |
KR100434473B1 (ko) * | 2001-05-11 | 2004-06-05 | 삼성전자주식회사 | 직교주파수 분할 다중 시스템에서 채널 복호 장치 및 방법 |
CA2468574A1 (en) * | 2001-11-29 | 2003-06-05 | Qualcomm, Incorporated | Method and apparatus for determining the log-likelihood ratio with precoding |
US7961826B2 (en) * | 2006-12-14 | 2011-06-14 | Texas Instruments Incorporated | Parameterized sphere detector and methods of using the same |
-
2002
- 2002-08-30 US US10/231,980 patent/US7609777B2/en active Active
-
2003
- 2003-08-14 EP EP03255067A patent/EP1394978B1/en not_active Expired - Fee Related
- 2003-08-14 DE DE60309546T patent/DE60309546T2/de not_active Expired - Lifetime
- 2003-08-20 JP JP2003296341A patent/JP4347638B2/ja not_active Expired - Fee Related
- 2003-08-21 KR KR1020030057960A patent/KR100987913B1/ko active IP Right Grant
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004282757A (ja) * | 2003-03-15 | 2004-10-07 | Lucent Technol Inc | 無線通信用球面復号器 |
JP4647922B2 (ja) * | 2003-03-15 | 2011-03-09 | アルカテル−ルーセント ユーエスエー インコーポレーテッド | 無線通信用球面復号器 |
WO2005050885A1 (ja) * | 2003-11-21 | 2005-06-02 | Matsushita Electric Industrial Co., Ltd. | マルチアンテナ受信装置、マルチアンテナ受信方法、マルチアンテナ送信装置及びマルチアンテナ通信システム |
US7864903B2 (en) | 2003-11-21 | 2011-01-04 | Panasonic Corporation | Multi-antenna reception apparatus, multi-antenna reception method, multi-antenna transmission apparatus and multi-antenna communication system |
US8144799B2 (en) | 2003-11-21 | 2012-03-27 | Panasonic Corporation | Multi-antenna reception apparatus, multi-antenna reception method, multi-antenna transmission apparatus and multi-antenna communication system |
US8724729B2 (en) | 2003-11-21 | 2014-05-13 | Harris Corporation | Interleaver, interleaving method, transmission apparatus, and transmitting method |
KR100800853B1 (ko) | 2005-06-09 | 2008-02-04 | 삼성전자주식회사 | 통신 시스템에서 신호 수신 장치 및 방법 |
US7594160B2 (en) | 2005-06-09 | 2009-09-22 | Samsung Electronics Co., Ltd | Apparatus and method for receiving signal in a communication system |
JP2009529304A (ja) * | 2006-03-30 | 2009-08-13 | インテル コーポレイション | 空間多重化信号を復号化するシステム、方法及び装置 |
Also Published As
Publication number | Publication date |
---|---|
DE60309546T2 (de) | 2007-08-30 |
US20040042565A1 (en) | 2004-03-04 |
EP1394978B1 (en) | 2006-11-08 |
KR20040019906A (ko) | 2004-03-06 |
EP1394978A1 (en) | 2004-03-03 |
DE60309546D1 (de) | 2006-12-21 |
KR100987913B1 (ko) | 2010-10-18 |
US7609777B2 (en) | 2009-10-27 |
JP4347638B2 (ja) | 2009-10-21 |
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