RU2007128046A - Ранговое прогнозирование на основе пропускной способности в mimo-схеме - Google Patents
Ранговое прогнозирование на основе пропускной способности в mimo-схеме Download PDFInfo
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- RU2007128046A RU2007128046A RU2007128046/09A RU2007128046A RU2007128046A RU 2007128046 A RU2007128046 A RU 2007128046A RU 2007128046/09 A RU2007128046/09 A RU 2007128046/09A RU 2007128046 A RU2007128046 A RU 2007128046A RU 2007128046 A RU2007128046 A RU 2007128046A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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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
- H04L1/0637—Properties of the code
- H04L1/065—Properties of the code by means of convolutional encoding
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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
- H04L1/0637—Properties of the code
- H04L1/0656—Cyclotomic systems, e.g. Bell Labs Layered Space-Time [BLAST]
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- 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
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- 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
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
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- 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
- H04L25/03343—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/26265—Arrangements for sidelobes suppression specially adapted to multicarrier systems, e.g. spectral precoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Electromagnetism (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Claims (20)
1. Способ рангового прогнозирования, содержащий этапы, на которых:
вычисляют матрицы MIMO-канала, соответствующие уровневым передачам для каждого тона;
вычисляют отношения "сигнал-шум" (SNR) для каждого тона на основе матриц MIMO-канала;
преобразуют SNR для каждого тона, чтобы сформировать фактические SNR для каждой уровневой передачи;
вычисляют величины аддитивного белого гауссова шума (AWGN), соответствующие фактическим SNR и обозначенные Cap1, Cap2, Cap3, Cap4;
выбирают абсолютное наибольшее Cap из наибольших Cap; и
выбирают ранг на основе выбранного абсолютного наибольшего Cap.
2. Способ по п.1, содержащий также этап, на котором отправляют индикатор качества на основе выбранного ранга.
3. Способ по п. 2, в котором индикатором качества является отношение "качество несущей-помехи" (CQI).
4. Способ по п.1, в котором число уровневых передач равно четырем.
6. Способ по п.1, в котором преобразование не ограничено в отношении пропускной способности.
8. Способ по п.7, в котором индикатор качества CQI вычисляется как CQI(M)=Quant[EffSNRM], где EffSNR - это фактическое SNR выбранного ранга.
9. Устройство беспроводной связи, содержащее:
средство вычисления матриц MIMO-канала, соответствующих уровневым передачам для каждого тона;
средство вычисления отношений "сигнал-шум" (SNR) для каждого тона на основе матриц MIMO-канала;
средство преобразования SNR для каждого тона, чтобы сформировать фактические SNR для каждой уровневой передачи;
средство вычисления величин аддитивного белого гауссова шума (AWGN), соответствующих фактическим SNR и обозначенных Cap1, Cap2, Cap3, Cap4;
средство выбора абсолютного наибольшего Cap из наибольших Cap; и
средство выбора ранга на основе выбранного абсолютного наибольшего Cap.
10. Устройство беспроводной связи по п.9, содержащее также средство отправки индикатора качества на основе выбранного ранга.
11. Устройство беспроводной связи по п.9, в котором число уровневых передач составляет, по меньшей мере, две.
12. Устройство беспроводной связи по п.10, в котором индикатором качества является отношение "качество несущей-помехи".
13. Процессор, запрограммированный для того, чтобы выполнять способ рангового прогнозирования, причем способ содержит этапы, на которых:
вычисляют матрицы MIMO-канала, соответствующие уровневым передачам для каждого тона;
вычисляют отношения "сигнал-шум" (SNR) для каждого тона на основе матриц MIMO-канала;
преобразуют SNR для каждого тона, чтобы сформировать фактические SNR для каждой уровневой передачи;
вычисляют величины аддитивного белого гауссова шума (AWGN), соответствующие фактическим SNR и обозначенные Cap1, Cap2, Cap3, Cap4;
выбирают абсолютное наибольшее Cap из наибольших Cap; и
выбирают ранг на основе выбранного абсолютного наибольшего Cap.
14. Процессор по п.13, в котором способ также содержит этап, на котором отправляют индикатор качества на основе выбранного ранга.
15. Процессор по п.13, в котором число уровневых передач составляет, по меньшей мере, две.
16. Процессор по п.14, в котором индикатором качества является отношение "качество несущей-помехи".
17. Машиночитаемый носитель, осуществляющий способ рангового прогнозирования, причем способ содержит этапы, на которых:
вычисляют матрицы MIMO-канала, соответствующие уровневым передачам для каждого тона;
вычисляют отношения "сигнал-шум" (SNR) для каждого тона на основе матриц MIMO-канала;
преобразуют SNR для каждого тона, чтобы сформировать фактические SNR для каждой уровневой передачи;
вычисляют величины аддитивного белого гауссова шума (AWGN), соответствующие фактическим SNR и обозначенные Cap1, Cap2, Cap3, Cap4;
выбирают абсолютное наибольшее Cap из наибольших Cap; и
выбирают ранг на основе выбранного абсолютного наибольшего Cap.
18. Машиночитаемый носитель по п.17, в котором способ также содержит этап, на котором отправляют индикатор качества на основе выбранного ранга.
19. Машиночитаемый носитель по п.17, в котором число уровневых передач составляет, по меньшей мере, две.
20. Машиночитаемый носитель по п.18, в котором индикатором качества является отношение "качество несущей-помехи".
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/022,347 | 2004-12-22 | ||
US11/022,347 US7567621B2 (en) | 2004-07-21 | 2004-12-22 | Capacity based rank prediction for MIMO design |
Publications (2)
Publication Number | Publication Date |
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RU2007128046A true RU2007128046A (ru) | 2009-01-27 |
RU2378767C2 RU2378767C2 (ru) | 2010-01-10 |
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Application Number | Title | Priority Date | Filing Date |
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RU2007128046/09A RU2378767C2 (ru) | 2004-12-22 | 2005-12-22 | Ранговое прогнозирование на основе пропускной способности в mimo-схеме |
Country Status (16)
Country | Link |
---|---|
US (1) | US7567621B2 (ru) |
EP (1) | EP1832032A2 (ru) |
JP (1) | JP2008526137A (ru) |
KR (1) | KR100940466B1 (ru) |
CN (1) | CN101124759A (ru) |
AU (1) | AU2005318993B2 (ru) |
BR (1) | BRPI0519539A2 (ru) |
CA (1) | CA2591609A1 (ru) |
IL (1) | IL183999A0 (ru) |
MX (1) | MX2007007757A (ru) |
NO (1) | NO20073178L (ru) |
NZ (1) | NZ556045A (ru) |
RU (1) | RU2378767C2 (ru) |
UA (1) | UA90495C2 (ru) |
WO (1) | WO2006069397A2 (ru) |
ZA (1) | ZA200705129B (ru) |
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RU2560818C2 (ru) * | 2009-04-21 | 2015-08-20 | Эппл Инк | Способ и устройство для определения индикатора качества канала в сетях связи, работающих в режиме mu-mimo |
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RU2528181C2 (ru) * | 2009-03-27 | 2014-09-10 | Сони Корпорейшн | Разделение потоков битов для создания пространственных трактов для передачи на множестве несущих |
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AU2005318993A1 (en) | 2006-06-29 |
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WO2006069397A2 (en) | 2006-06-29 |
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