JP4828718B2 - セルラ無線通信システム - Google Patents
セルラ無線通信システム Download PDFInfo
- Publication number
- JP4828718B2 JP4828718B2 JP2001124024A JP2001124024A JP4828718B2 JP 4828718 B2 JP4828718 B2 JP 4828718B2 JP 2001124024 A JP2001124024 A JP 2001124024A JP 2001124024 A JP2001124024 A JP 2001124024A JP 4828718 B2 JP4828718 B2 JP 4828718B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- value
- received signal
- interference
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 title claims description 13
- 230000001413 cellular effect Effects 0.000 title claims description 8
- 238000012549 training Methods 0.000 claims description 8
- 230000001902 propagating effect Effects 0.000 claims description 4
- 230000006735 deficit Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000007476 Maximum Likelihood Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- 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
-
- 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
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03535—Variable structures
- H04L2025/03547—Switching between time domain structures
- H04L2025/03566—Switching between time domain structures between different tapped delay line structures
-
- 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
- H04L2025/03592—Adaptation methods
- H04L2025/03726—Switching between algorithms
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Noise Elimination (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00303807.2 | 2000-05-05 | ||
| EP00303807A EP1152549B1 (en) | 2000-05-05 | 2000-05-05 | Radio communications system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002009678A JP2002009678A (ja) | 2002-01-11 |
| JP2002009678A5 JP2002009678A5 (https=) | 2008-06-26 |
| JP4828718B2 true JP4828718B2 (ja) | 2011-11-30 |
Family
ID=8172968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001124024A Expired - Fee Related JP4828718B2 (ja) | 2000-05-05 | 2001-04-23 | セルラ無線通信システム |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6668030B2 (https=) |
| EP (1) | EP1152549B1 (https=) |
| JP (1) | JP4828718B2 (https=) |
| DE (1) | DE60019091T2 (https=) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60215945T2 (de) * | 2002-09-26 | 2007-06-21 | Lucent Technologies Inc. | Entzerrer mit zwei Raum-Zeit Filtern und mit einem Selektor zum Wählen des Filters mit der besten Symbolschätzung |
| US7088978B2 (en) * | 2003-02-07 | 2006-08-08 | Ericsson Inc. | System and method for interference cancellation in a wireless communication receiver |
| CA2515996A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Joint space-time optimum filters (jstof) for interference cancellation |
| US7733996B2 (en) * | 2005-05-25 | 2010-06-08 | Research In Motion Limited | Joint space-time optimum filters (JSTOF) for interference cancellation |
| US8948309B2 (en) * | 2005-07-26 | 2015-02-03 | Broadcom Corporation | Method and system for redundancy-based decoding of video content in a wireless system |
| CA2515867A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions |
| CA2515997A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions |
| CA2516124A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using singular value decompositions |
| CA2516192A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions |
| CA2515932A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions |
| US7724816B2 (en) * | 2005-09-13 | 2010-05-25 | Freescale Semiconductor, Inc. | Dynamic switching between maximum likelihood sequence estimation (MLSE) and linear equalizer for single antenna interference cancellation (SAIC) in a global system for mobile communications (GSM) system |
| JP4732161B2 (ja) * | 2005-12-27 | 2011-07-27 | 京セラ株式会社 | 無線通信装置及び無線通信制御方法 |
| DE102006007025A1 (de) * | 2006-02-15 | 2007-10-04 | Infineon Technologies Ag | Vorrichtung zum Detektieren einer Signalart |
| US8094744B1 (en) | 2007-04-27 | 2012-01-10 | Marvell International Ltd. | System and method of selecting a data detection technique for a multiple-input multiple-output (MIMO) system |
| US7817748B2 (en) * | 2007-06-12 | 2010-10-19 | Intel Corporation | Pragmatic adaptive maximum ratio combining (MRC) and minimum mean square error (MMSE) multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) receiver algorithm |
| EP2096813A1 (en) * | 2008-02-29 | 2009-09-02 | Sony Corporation | Minimum mean square error equaliser with reduced complexity |
| US12609744B2 (en) | 2022-04-19 | 2026-04-21 | Beammwave Ab | Method for a multi-antenna transmitter and receiver arrangement, a computer program product, a multi-antenna transmitter and receiver arrangement, a wireless device, and a transceiver node |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05152894A (ja) * | 1991-07-29 | 1993-06-18 | Oki Electric Ind Co Ltd | 適応等化器 |
| US5566209A (en) * | 1994-02-10 | 1996-10-15 | Telefonaktiebolaget Lm Ericsson | Transceiver algorithms of antenna arrays |
| FR2742619B1 (fr) * | 1995-12-15 | 1998-02-06 | Thomson Csf | Procede d'egalisation multicapteur permettant une reception multicapteur en presence d'interferences et de multitrajets de propagation, et recepteur pour sa mise en oeuvre |
| US6128355A (en) * | 1997-05-21 | 2000-10-03 | Telefonaktiebolget Lm Ericsson | Selective diversity combining |
| FI106675B (fi) * | 1998-01-30 | 2001-03-15 | Nokia Networks Oy | Tiedonsiirtomenetelmä ja radiojärjestelmä |
| JP2974659B1 (ja) * | 1998-07-06 | 1999-11-10 | 株式会社エイ・ティ・アール環境適応通信研究所 | アレーアンテナの制御装置 |
| JP3617928B2 (ja) * | 1998-09-21 | 2005-02-09 | 松下電器産業株式会社 | 等化器及び等化方法 |
| JP2000216843A (ja) * | 1999-01-22 | 2000-08-04 | Oki Electric Ind Co Ltd | デジタル復調器 |
-
2000
- 2000-05-05 EP EP00303807A patent/EP1152549B1/en not_active Expired - Lifetime
- 2000-05-05 DE DE60019091T patent/DE60019091T2/de not_active Expired - Lifetime
-
2001
- 2001-04-23 JP JP2001124024A patent/JP4828718B2/ja not_active Expired - Fee Related
- 2001-05-03 US US09/848,504 patent/US6668030B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE60019091D1 (de) | 2005-05-04 |
| DE60019091T2 (de) | 2006-02-02 |
| EP1152549A1 (en) | 2001-11-07 |
| EP1152549B1 (en) | 2005-03-30 |
| US6668030B2 (en) | 2003-12-23 |
| JP2002009678A (ja) | 2002-01-11 |
| US20010050967A1 (en) | 2001-12-13 |
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