NO20071262L - Ratestyring av hver strom (PSRC) for forbedring av systemeffektivitet I OFDM-MIMO kommunikasjonssystemer - Google Patents
Ratestyring av hver strom (PSRC) for forbedring av systemeffektivitet I OFDM-MIMO kommunikasjonssystemerInfo
- Publication number
- NO20071262L NO20071262L NO20071262A NO20071262A NO20071262L NO 20071262 L NO20071262 L NO 20071262L NO 20071262 A NO20071262 A NO 20071262A NO 20071262 A NO20071262 A NO 20071262A NO 20071262 L NO20071262 L NO 20071262L
- Authority
- NO
- Norway
- Prior art keywords
- subcarriers
- system efficiency
- stream
- psrc
- ofdm
- Prior art date
Links
Classifications
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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
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- 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
-
- 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
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
-
- 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
-
- 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
- H04L1/0001—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
-
- 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
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
En sender deler en brukerdatastrøm i flere delstrømmer. Senderen velger så adaptivt en modulasjonsplan og en kodingsrate for hver av delstrømmene basert på de nåværende kanaltilstander. Deretter moduleres og kodes flere delbærere med de nevnte delstrømdata i henhold til de valgte modulasjonsplaner og kodingsrater. De modulerte delbæreme blir hver allokert til én eller flere senderantenner for utsendelse. Fornt for utsendelse justeres en sendereffekt for hver av delbæreme på grunnlag av kanaltilstandene. Den adaptive modulasjons- og kodingsfunksjonen, delbærerallokeringsfimksjonen og effektstyringsfimksjonen styres samlet for å optimalisere gjermomstrønming, signalkvalitet og systemeffektivitet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60074204P | 2004-08-11 | 2004-08-11 | |
PCT/US2005/026765 WO2006020411A2 (en) | 2004-08-11 | 2005-07-28 | Per stream rate control (psrc) for improving system efficiency in ofdm-mimo communication systems |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20071262L true NO20071262L (no) | 2007-03-08 |
Family
ID=35908029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20071262A NO20071262L (no) | 2004-08-11 | 2007-03-08 | Ratestyring av hver strom (PSRC) for forbedring av systemeffektivitet I OFDM-MIMO kommunikasjonssystemer |
Country Status (10)
Country | Link |
---|---|
US (2) | US7499393B2 (no) |
EP (1) | EP1779569A4 (no) |
JP (1) | JP2008510375A (no) |
KR (9) | KR20160043136A (no) |
CN (1) | CN101095362B (no) |
CA (1) | CA2576515A1 (no) |
MX (1) | MX2007001708A (no) |
NO (1) | NO20071262L (no) |
TW (4) | TWI388147B (no) |
WO (1) | WO2006020411A2 (no) |
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-
2005
- 2005-07-26 US US11/189,649 patent/US7499393B2/en active Active
- 2005-07-28 KR KR1020167008950A patent/KR20160043136A/ko not_active Application Discontinuation
- 2005-07-28 KR KR1020157012659A patent/KR101611496B1/ko not_active IP Right Cessation
- 2005-07-28 EP EP05777225A patent/EP1779569A4/en not_active Withdrawn
- 2005-07-28 KR KR1020077008710A patent/KR101297883B1/ko not_active IP Right Cessation
- 2005-07-28 CN CN2005800265266A patent/CN101095362B/zh not_active Expired - Fee Related
- 2005-07-28 MX MX2007001708A patent/MX2007001708A/es not_active Application Discontinuation
- 2005-07-28 KR KR1020137008850A patent/KR101440253B1/ko not_active IP Right Cessation
- 2005-07-28 CA CA002576515A patent/CA2576515A1/en not_active Abandoned
- 2005-07-28 KR KR1020127017588A patent/KR101298447B1/ko not_active IP Right Cessation
- 2005-07-28 KR KR1020077005608A patent/KR100913564B1/ko not_active IP Right Cessation
- 2005-07-28 KR KR1020137023841A patent/KR101504501B1/ko not_active IP Right Cessation
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