BR0209640A - Transmissão em sistema de comunicação multicanal utilizando controle de potência de canal seletivo - Google Patents
Transmissão em sistema de comunicação multicanal utilizando controle de potência de canal seletivoInfo
- Publication number
- BR0209640A BR0209640A BR0209640-4A BR0209640A BR0209640A BR 0209640 A BR0209640 A BR 0209640A BR 0209640 A BR0209640 A BR 0209640A BR 0209640 A BR0209640 A BR 0209640A
- Authority
- BR
- Brazil
- Prior art keywords
- channels
- channel
- transmission
- communication system
- power control
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
-
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
-
- 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
-
- 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
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
-
- 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
-
- 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
- H04L5/003—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
- 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
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
-
- 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
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0096—Channel splitting in point-to-point links
-
- 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
-
- 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
- H04L5/0037—Inter-user or inter-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
"TRANSMISSãO EM SISTEMA DE COMUNICAçãO MULTICANAL UTILIZANDO CONTROLE DE POTêNCIA DE CANAL SELETIVO". Técnicas de processamento de dados para transmissão através de um conjunto de canais de transmissão selecionados dentre todos os canais de transmissão disponíveis. Em um aspecto, o processamento de dados inclui a codificação dos dados com base em um esquema de codificação e modulação comum para fornecer símbolos de modulação e a pré pesagem dos símbolos de modulação para cada canal selecionado com base nas características do canal. A pré pesagem pode ser alcançada pela "inversão" dos canais selecionados de forma que as SNR recebidas sejam aproximadamente similares para todos os canais selecionados. Com a inversão seletiva de canal, apenas os canais possuindo SNR em ou acima de um limite particular são selecionados. Os canais "ruins" não são utilizados, e a potência de transmissão total disponível é distribuída através apenas dos "bons" canais. O desempenho aperfeiçoado é alcançado devido aos benefícios combinados da utilização apenas dos N melhores canais e coincidindo a SNR recebida de cada canal selecionado com a SNR necessária pelo esquema de codificação e modulação selecionado.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/860,274 US7688899B2 (en) | 2001-05-17 | 2001-05-17 | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
PCT/US2002/015404 WO2002093779A2 (en) | 2001-05-17 | 2002-05-17 | Transmission in multi-channel communication system using selective channel power control |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0209640A true BR0209640A (pt) | 2004-08-31 |
Family
ID=25332849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0209640-4A BR0209640A (pt) | 2001-05-17 | 2002-05-17 | Transmissão em sistema de comunicação multicanal utilizando controle de potência de canal seletivo |
Country Status (9)
Country | Link |
---|---|
US (4) | US7688899B2 (pt) |
EP (3) | EP2317664A3 (pt) |
JP (3) | JP2004535105A (pt) |
KR (2) | KR100942646B1 (pt) |
CN (1) | CN1568586B (pt) |
AU (1) | AU2002259221A1 (pt) |
BR (1) | BR0209640A (pt) |
TW (1) | TW576032B (pt) |
WO (1) | WO2002093779A2 (pt) |
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2001
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- 2002-05-17 BR BR0209640-4A patent/BR0209640A/pt not_active IP Right Cessation
- 2002-05-17 EP EP20090152606 patent/EP2053773A1/en not_active Withdrawn
- 2002-05-17 WO PCT/US2002/015404 patent/WO2002093779A2/en active Application Filing
- 2002-05-17 KR KR1020037014912A patent/KR100919082B1/ko active IP Right Grant
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US8040965B2 (en) | 2011-10-18 |
CN1568586A (zh) | 2005-01-19 |
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EP2317664A3 (en) | 2012-10-10 |
TW576032B (en) | 2004-02-11 |
JP2004535105A (ja) | 2004-11-18 |
KR100942646B1 (ko) | 2010-02-17 |
EP2053773A1 (en) | 2009-04-29 |
US20100104039A1 (en) | 2010-04-29 |
JP2009081873A (ja) | 2009-04-16 |
CN1568586B (zh) | 2010-12-22 |
JP2011097619A (ja) | 2011-05-12 |
KR100919082B1 (ko) | 2009-09-28 |
JP5296042B2 (ja) | 2013-09-25 |
US20100246704A1 (en) | 2010-09-30 |
AU2002259221A1 (en) | 2002-11-25 |
KR20090058595A (ko) | 2009-06-09 |
US7688899B2 (en) | 2010-03-30 |
US20030048856A1 (en) | 2003-03-13 |
WO2002093779A2 (en) | 2002-11-21 |
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