BRPI0814945A2 - Transmissão mimo com pré-codificação espacial - Google Patents
Transmissão mimo com pré-codificação espacialInfo
- Publication number
- BRPI0814945A2 BRPI0814945A2 BRPI0814945-3A2A BRPI0814945A BRPI0814945A2 BR PI0814945 A2 BRPI0814945 A2 BR PI0814945A2 BR PI0814945 A BRPI0814945 A BR PI0814945A BR PI0814945 A2 BRPI0814945 A2 BR PI0814945A2
- Authority
- BR
- Brazil
- Prior art keywords
- mimo transmission
- space precoding
- precoding
- space
- mimo
- Prior art date
Links
Classifications
-
- 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
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
-
- 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
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
- H04B7/0617—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 for beam forming
-
- 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
- H04B7/0613—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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- 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
- H04B7/10—Polarisation diversity; Directional 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
-
- 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
- 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
-
- 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
- H04L25/0248—Eigen-space methods
-
- 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
- H04L25/0398—Restoration of channel reciprocity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
-
- 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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
-
- 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
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
-
- 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
- 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
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03802—Signalling on the reverse channel
-
- 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
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US95562207P | 2007-08-13 | 2007-08-13 | |
US12/181,732 US8798183B2 (en) | 2007-08-13 | 2008-07-29 | Feedback and rate adaptation for MIMO transmission in a time division duplexed (TDD) communication system |
PCT/US2008/072932 WO2009023681A2 (en) | 2007-08-13 | 2008-08-12 | Mimo transmission with spatial pre-coding |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0814945A2 true BRPI0814945A2 (pt) | 2015-01-27 |
Family
ID=40351445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0814945-3A2A BRPI0814945A2 (pt) | 2007-08-13 | 2008-08-12 | Transmissão mimo com pré-codificação espacial |
Country Status (12)
Country | Link |
---|---|
US (1) | US8798183B2 (pt) |
EP (1) | EP2183892B1 (pt) |
JP (2) | JP5431325B2 (pt) |
KR (1) | KR101030670B1 (pt) |
CN (1) | CN101843062B (pt) |
AU (1) | AU2008286923A1 (pt) |
BR (1) | BRPI0814945A2 (pt) |
CA (1) | CA2694168A1 (pt) |
MX (1) | MX2010001739A (pt) |
RU (1) | RU2454831C2 (pt) |
TW (1) | TW200924451A (pt) |
WO (1) | WO2009023681A2 (pt) |
Families Citing this family (177)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10886979B2 (en) * | 2004-04-02 | 2021-01-05 | Rearden, Llc | System and method for link adaptation in DIDO multicarrier systems |
US10749582B2 (en) | 2004-04-02 | 2020-08-18 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
US11451275B2 (en) | 2004-04-02 | 2022-09-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
US9312929B2 (en) | 2004-04-02 | 2016-04-12 | Rearden, Llc | System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS) |
US10985811B2 (en) | 2004-04-02 | 2021-04-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10187133B2 (en) | 2004-04-02 | 2019-01-22 | Rearden, Llc | System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network |
US9819403B2 (en) | 2004-04-02 | 2017-11-14 | Rearden, Llc | System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client |
US8654815B1 (en) | 2004-04-02 | 2014-02-18 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10200094B2 (en) | 2004-04-02 | 2019-02-05 | Rearden, Llc | Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems |
US11394436B2 (en) | 2004-04-02 | 2022-07-19 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10277290B2 (en) | 2004-04-02 | 2019-04-30 | Rearden, Llc | Systems and methods to exploit areas of coherence in wireless systems |
US9826537B2 (en) | 2004-04-02 | 2017-11-21 | Rearden, Llc | System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters |
US10425134B2 (en) | 2004-04-02 | 2019-09-24 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
US8542763B2 (en) | 2004-04-02 | 2013-09-24 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
US11309943B2 (en) | 2004-04-02 | 2022-04-19 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
US9685997B2 (en) | 2007-08-20 | 2017-06-20 | Rearden, Llc | Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems |
US7917176B2 (en) | 2006-02-14 | 2011-03-29 | Nec Laboratories America, Inc. | Structured codebook and successive beamforming for multiple-antenna systems |
US8824420B2 (en) * | 2007-03-22 | 2014-09-02 | Mitsubishi Electric Research Laboratories, Inc. | Method and system for generating antenna selection signals in OFDM tranceivers with fewer RF chains than antennas in MIMO wireless networks |
US8190092B1 (en) | 2007-08-29 | 2012-05-29 | Marvell International Ltd. | Selecting modulation and coding scheme in the presence of interference |
US8111771B2 (en) * | 2007-06-19 | 2012-02-07 | Samsung Electronics Co., Ltd. | Wireless communication apparatus and method using beamforming |
EP2506479B1 (en) * | 2007-09-14 | 2019-05-08 | Telefonaktiebolaget LM Ericsson (publ) | Improved use of subframes in a cellular communications system |
WO2009041881A2 (en) * | 2007-09-28 | 2009-04-02 | Telefonaktiebolaget L M Ericsson (Publ) | Transmission of reference signal between uplink and downlink timeslots |
US8948799B1 (en) | 2007-11-30 | 2015-02-03 | Microsoft Corporation | Channel quality indicator apparatus and method |
KR100991792B1 (ko) * | 2007-12-31 | 2010-11-04 | 엘지전자 주식회사 | 협력적 다중 입출력 방식 신호 송수신 방법 |
CN101505485B (zh) * | 2008-02-05 | 2014-11-05 | 三星电子株式会社 | Lte tdd***中发送srs的方法和装置 |
US8358979B2 (en) | 2009-02-04 | 2013-01-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for measuring interference in a telecommunications system |
TWI357733B (en) * | 2008-03-25 | 2012-02-01 | Ralink Technology Corp | Method for error-correcting code selection for mim |
US20090312044A1 (en) * | 2008-06-13 | 2009-12-17 | Ari Hottinen | Channel Estimation, Scheduling, and Resource Allocation using Pilot Channel Measurements |
EP2293473B8 (en) * | 2008-06-23 | 2016-09-21 | Sun Patent Trust | Method of arranging reference signals and wireless communication base station apparatus |
CN101640921B (zh) * | 2008-07-31 | 2013-10-23 | 电信科学技术研究院 | 上行探测参考信号的带宽确定方法、***和装置 |
US8194762B2 (en) * | 2008-08-19 | 2012-06-05 | Motorola Mobility, Inc. | Feedforward of non-quantized precoding weights in a wireless communications system |
CN101378595B (zh) * | 2008-09-28 | 2012-05-23 | 中兴通讯股份有限公司 | 确定随机接入信道数量的方法及测量参考信号的发送方法 |
US9007979B2 (en) * | 2008-09-29 | 2015-04-14 | Electronics And Telecommunications Research Institute | Apparatus and method for transmitting and receiving data in wireless communication system using relay |
US20100103810A1 (en) * | 2008-10-23 | 2010-04-29 | Motorola, Inc. | Modulation coding scheme selection in a wireless communication system |
RU2398356C2 (ru) * | 2008-10-31 | 2010-08-27 | Cамсунг Электроникс Ко., Лтд | Способ установления беспроводной линии связи и система для установления беспроводной связи |
JP5196487B2 (ja) * | 2008-12-25 | 2013-05-15 | 京セラ株式会社 | 無線基地局および無線通信方法 |
JP5322327B2 (ja) * | 2009-01-05 | 2013-10-23 | マーベル ワールド トレード リミテッド | Mimo通信システムのコードブックのプリコーディング |
US8385441B2 (en) | 2009-01-06 | 2013-02-26 | Marvell World Trade Ltd. | Efficient MIMO transmission schemes |
KR101540482B1 (ko) * | 2009-01-08 | 2015-08-03 | 엘지전자 주식회사 | 협력 전송 방법 |
US8867380B2 (en) * | 2009-02-02 | 2014-10-21 | Qualcomm Incorporated | Scheduling algorithms for cooperative beamforming |
US8867493B2 (en) | 2009-02-02 | 2014-10-21 | Qualcomm Incorporated | Scheduling algorithms for cooperative beamforming based on resource quality indication |
US8644409B2 (en) * | 2009-02-11 | 2014-02-04 | Qualcomm Incorporated | Method and apparatus for modulation and layer mapping in a wireless communication system |
WO2010095874A2 (ko) * | 2009-02-19 | 2010-08-26 | (주)엘지전자 | 릴레이 통신 시스템에서 데이터 송수신 방법 및 장치 |
US8699528B2 (en) * | 2009-02-27 | 2014-04-15 | Marvell World Trade Ltd. | Systems and methods for communication using dedicated reference signal (DRS) |
US8238483B2 (en) | 2009-02-27 | 2012-08-07 | Marvell World Trade Ltd. | Signaling of dedicated reference signal (DRS) precoding granularity |
US8649456B2 (en) | 2009-03-12 | 2014-02-11 | Futurewei Technologies, Inc. | System and method for channel information feedback in a wireless communications system |
KR101697884B1 (ko) | 2009-03-17 | 2017-01-18 | 인터디지탈 패튼 홀딩스, 인크 | 사운딩 레퍼런스 신호(srs) 전송의 전력 제어를 위한 방법 및 장치 |
KR101280984B1 (ko) * | 2009-03-19 | 2013-07-08 | 닛본 덴끼 가부시끼가이샤 | Ofdm 프레임 내에의 다운링크 복조 기준 신호의 삽입 |
US8867495B2 (en) * | 2009-03-20 | 2014-10-21 | Qualcomm Incorporated | Feedback mechanisms for beamforming operation |
KR101253204B1 (ko) * | 2009-03-22 | 2013-04-10 | 엘지전자 주식회사 | 복수 안테나를 이용한 채널 사운딩 방법 및 이를 위한 장치 |
US8675627B2 (en) | 2009-03-23 | 2014-03-18 | Futurewei Technologies, Inc. | Adaptive precoding codebooks for wireless communications |
WO2010116273A1 (en) * | 2009-04-06 | 2010-10-14 | Marvell World Trade Ltd | Improved feedback strategies for multi-user mimo communication systems |
WO2010122432A1 (en) * | 2009-04-21 | 2010-10-28 | Marvell World Trade Ltd | Multi-point opportunistic beamforming with selective beam attenuation |
US20110110455A1 (en) * | 2009-04-23 | 2011-05-12 | Qualcomm Incorporated | Rank and precoding indication for mimo operation |
US8938247B2 (en) * | 2009-04-23 | 2015-01-20 | Qualcomm Incorporated | Sounding reference signal for coordinated multi-point operation |
US20110105137A1 (en) * | 2009-04-23 | 2011-05-05 | Qualcomm Incorporated | Rank and precoding indication for mimo operation |
US20110103510A1 (en) * | 2009-04-23 | 2011-05-05 | Qualcomm Incorporated | Rank and precoding indication for mimo operation |
RU2552643C2 (ru) | 2009-04-30 | 2015-06-10 | Конинклейке Филипс Электроникс Н.В. | Способ осуществления связи в сети |
DE102009019894A1 (de) * | 2009-05-04 | 2010-11-11 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und Vorrichtung zur Ermittlung von Schätzwerten für Sendesymbole in einem MIMO-OFDM-System |
KR101294815B1 (ko) | 2009-05-15 | 2013-08-08 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
KR101128817B1 (ko) * | 2009-05-15 | 2012-03-23 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
KR101678435B1 (ko) * | 2009-07-17 | 2016-12-06 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 하향링크 신호를 수신하는 방법 및 이를 위한 장치 |
KR20110009025A (ko) * | 2009-07-20 | 2011-01-27 | 엘지전자 주식회사 | 상향링크 제어정보 전송 방법 및 장치 |
CN101997654B (zh) * | 2009-08-17 | 2013-08-28 | 富士通株式会社 | 生成预编码矩阵码书组的方法和装置 |
US9137802B2 (en) * | 2009-08-18 | 2015-09-15 | Qualcomm Incorporated | DL MU-MIMO operation in LTE-A |
CN102025456A (zh) * | 2009-09-18 | 2011-04-20 | 富士通株式会社 | 反馈参数选择装置和反馈参数选择方法 |
AU2010296186B2 (en) * | 2009-09-21 | 2014-07-17 | Lg Electronics Inc. | Method for transmitting a sounding reference signal in a wireless communication system, and apparatus for same |
WO2011034399A2 (ko) | 2009-09-21 | 2011-03-24 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
US8675794B1 (en) | 2009-10-13 | 2014-03-18 | Marvell International Ltd. | Efficient estimation of feedback for modulation and coding scheme (MCS) selection |
US8917796B1 (en) | 2009-10-19 | 2014-12-23 | Marvell International Ltd. | Transmission-mode-aware rate matching in MIMO signal generation |
KR20110044155A (ko) * | 2009-10-22 | 2011-04-28 | 삼성전자주식회사 | 무선통신시스템에서 임의 접근 채널 전송 장치 및 방법 |
EP2499862B1 (en) * | 2009-11-09 | 2018-09-05 | Marvell World Trade Ltd. | Asymmetrical feedback for coordinated transmission systems |
EP2334122B1 (en) * | 2009-12-14 | 2014-03-26 | Intel Mobile Communications GmbH | Method and apparatus for data communication in LTE cellular networks |
WO2011074761A1 (ko) | 2009-12-17 | 2011-06-23 | 엘지전자 주식회사 | 무선랜 시스템의 스테이션간 간섭 절감 방법 및 이를 지원하는 장치 |
JP5637486B2 (ja) * | 2009-12-17 | 2014-12-10 | マーベル ワールド トレード リミテッド | 交差偏波アンテナ用のmimoフィードバックスキーム |
EP2337235B1 (en) * | 2009-12-21 | 2013-04-17 | Fujitsu Limited | Feedback interval control in MIMO-systems |
KR101757301B1 (ko) * | 2009-12-22 | 2017-07-12 | 엘지전자 주식회사 | 프리코딩된 사운딩 참조신호를 이용하여 comp 통신을 수행하는 장치 및 그 방법 |
WO2011080909A1 (ja) * | 2009-12-28 | 2011-07-07 | 京セラ株式会社 | アダプティブアレイ基地局及びアダプティブアレイ基地局の通信方法 |
CN102754358B (zh) * | 2009-12-30 | 2015-08-12 | 意大利电信股份公司 | “多入多出”(“mimo”)***中选择预编码矩阵的方法 |
WO2011082686A1 (en) * | 2010-01-08 | 2011-07-14 | Mediatek Inc. | Resource allocation and signaling method for lte sounding |
WO2011090259A2 (ko) | 2010-01-19 | 2011-07-28 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
JP5258002B2 (ja) * | 2010-02-10 | 2013-08-07 | マーベル ワールド トレード リミテッド | Mimo通信システムにおける装置、移動通信端末、チップセット、およびその方法 |
US8520542B2 (en) * | 2010-02-12 | 2013-08-27 | Mediatek Inc. | Uplink power control message design in wireless OFDMA systems |
US20110305209A1 (en) * | 2010-03-09 | 2011-12-15 | Qualcomm Incorporated | Rate adaptation for sdma |
CN102201886B (zh) | 2010-03-22 | 2014-03-12 | 中兴通讯股份有限公司 | 闭环多输入多输出***中预编码矩阵的选取方法和*** |
US8687741B1 (en) | 2010-03-29 | 2014-04-01 | Marvell International Ltd. | Scoring hypotheses in LTE cell search |
SG185022A1 (en) | 2010-04-30 | 2012-11-29 | Panasonic Corp | Wireless communication device and method for controlling transmission power |
CN102255642B (zh) * | 2010-05-19 | 2014-01-01 | 华为技术有限公司 | 一种干扰消除方法及设备、*** |
WO2011162520A2 (ko) | 2010-06-22 | 2011-12-29 | 엘지전자 주식회사 | 채널 상태 정보 전송 방법 및 장치 |
US8989240B2 (en) | 2010-06-23 | 2015-03-24 | Koninklijke Philips N.V. | Method for operating a secondary station |
US8547955B2 (en) * | 2010-07-28 | 2013-10-01 | Intel Corporation | Feedback scheme for MU-MIMO |
CN102386955B (zh) * | 2010-09-03 | 2014-03-12 | 华为技术有限公司 | 干扰对齐方法和设备及多信道通信*** |
JP2012100254A (ja) | 2010-10-06 | 2012-05-24 | Marvell World Trade Ltd | Pucchフィードバックのためのコードブックサブサンプリング |
US8615052B2 (en) | 2010-10-06 | 2013-12-24 | Marvell World Trade Ltd. | Enhanced channel feedback for multi-user MIMO |
JP5798317B2 (ja) * | 2010-11-26 | 2015-10-21 | 京セラ株式会社 | 無線基地局及び通信制御方法 |
JP5735783B2 (ja) * | 2010-11-26 | 2015-06-17 | 京セラ株式会社 | 無線基地局及び通信制御方法 |
US9370015B2 (en) | 2010-11-26 | 2016-06-14 | Kyocera Corporation | Radio base station and communication control method |
US9048970B1 (en) | 2011-01-14 | 2015-06-02 | Marvell International Ltd. | Feedback for cooperative multipoint transmission systems |
CN102624432B (zh) * | 2011-01-26 | 2017-04-05 | 中兴通讯股份有限公司 | 多层波束成形方法及实现多层波束成形的终端 |
KR101373769B1 (ko) | 2011-02-15 | 2014-03-14 | 성균관대학교산학협력단 | 고효율 가변전력 전송 장치 및 방법 |
US9282556B2 (en) | 2011-02-15 | 2016-03-08 | Kyocera Corporation | Base station and communication method thereof |
US8861391B1 (en) | 2011-03-02 | 2014-10-14 | Marvell International Ltd. | Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes |
JP6019502B2 (ja) | 2011-03-31 | 2016-11-02 | マーベル ワールド トレード リミテッド | 協調マルチポイント送信のためのチャネルフィードバック |
US8792372B2 (en) * | 2011-06-20 | 2014-07-29 | Xiao-an Wang | Carrier-phase difference detection with mismatched transmitter and receiver delays |
US8891640B2 (en) * | 2011-06-21 | 2014-11-18 | Marvell World Trade Ltd. | Uplink training for MIMO implicit beamforming |
EP2547022A1 (en) | 2011-07-13 | 2013-01-16 | Intel Mobile Communications Technology Dresden GmbH | Method and apparatus for determining channel state information |
CN102291210B (zh) * | 2011-08-08 | 2017-12-01 | 中兴通讯股份有限公司 | 一种生成预编码矩阵的方法及装置 |
KR101839812B1 (ko) | 2011-08-11 | 2018-03-19 | 삼성전자주식회사 | 혼합 아날로그/디지털 빔포밍을 위한 방법 및 장치 |
US20130059618A1 (en) * | 2011-09-06 | 2013-03-07 | Carl Cao | Method and architecture for very high capacity wireless access using active electronic scanned array (aesa) |
US9241287B2 (en) * | 2011-09-13 | 2016-01-19 | Qualcomm Incorporated | Narrow bandwidth operation in LTE |
WO2013048143A2 (en) | 2011-09-27 | 2013-04-04 | Samsung Electronics Co., Ltd. | A method and appratus for transmission power control for a sounding reference signal |
US9154969B1 (en) | 2011-09-29 | 2015-10-06 | Marvell International Ltd. | Wireless device calibration for implicit transmit |
WO2013068915A2 (en) | 2011-11-07 | 2013-05-16 | Marvell World Trade Ltd. | Precoding feedback for cross-polarized antennas with magnitude information |
US8923427B2 (en) | 2011-11-07 | 2014-12-30 | Marvell World Trade Ltd. | Codebook sub-sampling for frequency-selective precoding feedback |
US9031597B2 (en) | 2011-11-10 | 2015-05-12 | Marvell World Trade Ltd. | Differential CQI encoding for cooperative multipoint feedback |
US9031018B2 (en) * | 2011-11-15 | 2015-05-12 | Telefonaktiebolaget L M Ericsson (Publ.) | Methods selecting modulation/coding schemes mapped to multiple MIMO layers and related user equipment |
CN103138822B (zh) * | 2011-12-05 | 2017-04-12 | 华为技术有限公司 | 传输信号的方法和设备 |
US9220087B1 (en) | 2011-12-08 | 2015-12-22 | Marvell International Ltd. | Dynamic point selection with combined PUCCH/PUSCH feedback |
US8902842B1 (en) | 2012-01-11 | 2014-12-02 | Marvell International Ltd | Control signaling and resource mapping for coordinated transmission |
US9294179B2 (en) * | 2012-02-07 | 2016-03-22 | Google Technology Holdings LLC | Gain normalization correction of PMI and COI feedback for base station with antenna array |
JP2013176008A (ja) * | 2012-02-27 | 2013-09-05 | Kyocera Corp | 通信システム、基地局、移動局及び通信制御方法 |
JP5923786B2 (ja) * | 2012-03-16 | 2016-05-25 | シャープ株式会社 | 基地局装置及び通信方法 |
US9143951B2 (en) | 2012-04-27 | 2015-09-22 | Marvell World Trade Ltd. | Method and system for coordinated multipoint (CoMP) communication between base-stations and mobile communication terminals |
US20130301563A1 (en) * | 2012-05-11 | 2013-11-14 | Samsung Electronics Co., Ltd | Pilot design for millimeter wave broadband |
FR2990816A1 (fr) * | 2012-05-16 | 2013-11-22 | France Telecom | Procede de communication sans-fil a haut debit avec un recepteur a antennes multiples |
US10098095B2 (en) * | 2012-05-25 | 2018-10-09 | Qualcomm Incorporated | Feedback to enhance rate prediction with bursty interference |
US9288009B2 (en) * | 2012-07-09 | 2016-03-15 | Qualcomm Incorporated | Modulation coding scheme selection for response frames in case of transmit power imbalance |
US11190947B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for concurrent spectrum usage within actively used spectrum |
US11050468B2 (en) | 2014-04-16 | 2021-06-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
US10194346B2 (en) | 2012-11-26 | 2019-01-29 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US11189917B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for distributing radioheads |
CN107689823B (zh) | 2012-12-27 | 2023-10-20 | 华为技术有限公司 | 信道状态信息反馈的方法以及一种用户设备和基站 |
JP5436703B2 (ja) * | 2013-01-29 | 2014-03-05 | 京セラ株式会社 | 無線基地局および無線通信方法 |
KR20140107967A (ko) | 2013-02-28 | 2014-09-05 | 한국전자통신연구원 | 프리코딩 방법 및 장치 |
US10164698B2 (en) | 2013-03-12 | 2018-12-25 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US10488535B2 (en) | 2013-03-12 | 2019-11-26 | Rearden, Llc | Apparatus and method for capturing still images and video using diffraction coded imaging techniques |
US9923657B2 (en) | 2013-03-12 | 2018-03-20 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US9973246B2 (en) | 2013-03-12 | 2018-05-15 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
RU2767777C2 (ru) | 2013-03-15 | 2022-03-21 | Риарден, Ллк | Системы и способы радиочастотной калибровки с использованием принципа взаимности каналов в беспроводной связи с распределенным входом - распределенным выходом |
JP6151074B2 (ja) * | 2013-04-15 | 2017-06-21 | 京セラ株式会社 | 通信システムおよび通信制御方法 |
EP2996258B1 (en) | 2013-05-07 | 2019-07-31 | LG Electronics Inc. | Method for reporting channel state information for three dimensional beamforming in wireless communication system and apparatus for same |
US9148325B2 (en) * | 2013-05-23 | 2015-09-29 | Ridha HAMILA | System and methods for compensation of I/Q imbalance in beamforming OFDM systems |
KR101481064B1 (ko) * | 2013-06-28 | 2015-01-12 | 전북대학교산학협력단 | 다수의 안테나 어레이들을 이용한 샘플 고유치 기반의 신호 검출 방법 및 이를 적용한 통신 시스템 |
US9948375B2 (en) | 2013-08-05 | 2018-04-17 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving reference signal through beam grouping in wireless communication system |
JP6135771B2 (ja) * | 2013-10-25 | 2017-05-31 | 富士通株式会社 | 通信システム、通信端末及び参照信号送信方法 |
CN104639486B (zh) * | 2013-11-12 | 2018-04-10 | 华为技术有限公司 | 传输方法及装置 |
KR101447027B1 (ko) * | 2013-11-19 | 2014-10-07 | 국방과학연구소 | 다중 안테나 시스템의 빔포밍 장치 및 방법 |
US20150163036A1 (en) * | 2013-12-11 | 2015-06-11 | Nokia Solutions And Networks Oy | High Resolution Channel Sounding for FDD Communications |
US9680753B2 (en) * | 2014-01-07 | 2017-06-13 | Qualcomm Incorporated | Systems and methods for wireless communication with asymmetric numbers of transmit and receive chains |
EP2897409B1 (en) * | 2014-01-17 | 2020-05-27 | Sony Corporation | Method for operating a base station comprising a plurality of antennas in a wireless radio network |
US9699048B2 (en) * | 2014-02-13 | 2017-07-04 | Samsung Electronics Co., Ltd. | Computing system with channel quality mechanism and method of operation thereof |
US11290162B2 (en) | 2014-04-16 | 2022-03-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
CN105245310B (zh) * | 2014-07-09 | 2020-01-14 | 中兴通讯股份有限公司 | 一种下行导频信号的处理方法及*** |
KR102124610B1 (ko) * | 2014-08-20 | 2020-06-19 | 삼성전자주식회사 | 무선 통신 시스템에서 낮은 복잡도로 복호를 수행하기 위한 방법 및 장치 |
WO2016044848A1 (en) * | 2014-09-19 | 2016-03-24 | Huawei Technologies Co., Ltd. | System and method for downlink open-loop multi-user coordinated multipoint transmission using sparse code multiple access |
KR102398646B1 (ko) * | 2014-12-02 | 2022-05-17 | 삼성전자주식회사 | 하이브리드 다중-입력 다중-출력 방식을 지원하는 통신 시스템에서 빔 운용 장치 및 방법 |
WO2016131487A1 (en) * | 2015-02-19 | 2016-08-25 | Nokia Solutions And Networks Oy | Pre-coding |
CN106160802B (zh) * | 2015-03-25 | 2021-09-07 | 索尼公司 | 无线通信设备、无线通信方法、计算机可读存储介质 |
US9860084B2 (en) * | 2015-07-29 | 2018-01-02 | Qualcomm Incorporated | Techniques for managing sounding intervals of a wireless communications device |
CN107925942B (zh) * | 2015-08-14 | 2021-03-12 | 瑞典爱立信有限公司 | 无线通信***中的***接入信息的分发 |
CN107404345B (zh) * | 2016-05-21 | 2020-10-02 | 上海朗帛通信技术有限公司 | 一种无线通信中的方法和装置 |
US10826573B2 (en) | 2016-08-10 | 2020-11-03 | Idac Holdings, Inc. | Methods, apparatus, systems and procedures for uplink (UL) channel reciprocity |
WO2018038648A1 (en) * | 2016-08-22 | 2018-03-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio node and method therein for determining precoders |
WO2018035866A1 (zh) * | 2016-08-26 | 2018-03-01 | 华为技术有限公司 | 一种数据发送方法及装置 |
US10419245B2 (en) * | 2016-11-29 | 2019-09-17 | Motorola Mobility Llc | Method and apparatus for determining parameters and conditions for line of sight MIMO communication |
US10250306B2 (en) | 2016-11-29 | 2019-04-02 | Motorola Mobility Llc | Method and apparatus for determining parameters and conditions for line of sight MIMO communication |
PL3562059T3 (pl) | 2016-12-30 | 2021-07-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Metoda przesyłania informacji, urządzenie sieciowe i urządzenie końcowe |
CN108282211B (zh) * | 2017-01-06 | 2023-11-03 | 华为技术有限公司 | 一种信号传输方法和网络设备以及终端设备 |
EP3471364B1 (en) * | 2017-05-03 | 2023-08-09 | LG Electronics Inc. | Method for transmitting random access channel signal, user equipment, method for receiving random access channel signal, and base station |
US10594371B2 (en) | 2017-08-11 | 2020-03-17 | Qualcomm Incorporated | Precoding reference signals for uplink transmission with downlink interference information |
US10892929B2 (en) | 2017-09-29 | 2021-01-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-antenna processing for reference signal |
RU2748317C1 (ru) * | 2017-10-30 | 2021-05-24 | Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. | Способ передачи сигнала, сетевое устройство и оконечное устройство |
US10404339B1 (en) | 2018-08-09 | 2019-09-03 | At&T Intellectual Property I, L.P. | Precoding matrix indicator determination in wireless communication systems |
KR20210037240A (ko) * | 2019-09-27 | 2021-04-06 | 삼성전자주식회사 | 무선 통신 시스템에서 하향링크 채널을 복원하기 위한 장치 및 방법 |
CN111988248B (zh) * | 2019-11-15 | 2022-12-06 | 郑州轻工业大学 | 一种基于干扰通信对信息交互机制的接收方法及其装置 |
US11832226B2 (en) * | 2020-03-26 | 2023-11-28 | Qualcomm Incorporated | Indicating slot format indices used across multiple user equipments |
US11159208B1 (en) * | 2020-07-15 | 2021-10-26 | Samsung Electronics Co., Ltd | Optimal precoder method and apparatus with equal power allocation |
Family Cites Families (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPM780994A0 (en) | 1994-08-31 | 1994-09-22 | Telstra Corporation Limited | A method and apparatus for channel allocation in a cellular telecommunications network |
US6041046A (en) * | 1995-07-14 | 2000-03-21 | Omnipoint Corporation | Cyclic time hopping in time division multiple access communication system |
GB9614927D0 (en) | 1996-07-16 | 1996-09-04 | British Telecomm | Arranging data signals defining a network |
CA2194023C (en) * | 1996-12-24 | 2002-04-02 | Murray C. Baker | Channel hopping protocol |
JPH10240500A (ja) | 1997-02-28 | 1998-09-11 | Toshiba Corp | 乱数生成装置及び方法、暗号化装置及び方法、復号装置及び方法、並びにストリーム暗号システム |
US5852630A (en) * | 1997-07-17 | 1998-12-22 | Globespan Semiconductor, Inc. | Method and apparatus for a RADSL transceiver warm start activation procedure with precoding |
EP1105986B1 (de) | 1998-08-21 | 2005-05-25 | Evologics GmbH | Verfahren zur übertragung von informationen sowie ein geeignetes system hierfür |
KR20010108265A (ko) | 1999-02-24 | 2001-12-07 | 더 보드 오브 트러스티즈, 리랜드 스탠포드 주니어 유니버시티 | 멀티캐리어 전송시스템의 익스프레스 비트 스와핑 |
US6529487B1 (en) | 1999-07-09 | 2003-03-04 | Qualcomm Incorporated | Method and apparatus for securely transmitting distributed RAND for use in mobile station authentication |
US6934388B1 (en) * | 1999-11-12 | 2005-08-23 | Itt Manufacturing Enterprises, Inc. | Method and apparatus for generating random permutations |
KR100370746B1 (ko) | 2000-05-30 | 2003-02-05 | 한국전자통신연구원 | 다차원 직교 자원 도약 다중화 통신 방식 및 장치 |
US6981157B2 (en) | 2000-08-30 | 2005-12-27 | Lucent Technologies Inc. | Method and apparatus for ensuring security of users of short range wireless enable devices |
US6920171B2 (en) * | 2000-12-14 | 2005-07-19 | Motorola, Inc. | Multiple access frequency hopping network with interference anticipation |
US6859503B2 (en) | 2001-04-07 | 2005-02-22 | Motorola, Inc. | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel |
US6662024B2 (en) | 2001-05-16 | 2003-12-09 | Qualcomm Incorporated | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system |
US7027523B2 (en) | 2001-06-22 | 2006-04-11 | Qualcomm Incorporated | Method and apparatus for transmitting data in a time division duplexed (TDD) communication system |
US7317680B2 (en) | 2002-10-01 | 2008-01-08 | Nortel Networks Limited | Channel mapping for OFDM |
US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US8570988B2 (en) * | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
WO2004038972A1 (en) * | 2002-10-26 | 2004-05-06 | Electronics And Telecommunications Research Institute | Frequency hopping ofdma method using symbols of comb pattern |
US7068703B2 (en) * | 2003-02-18 | 2006-06-27 | Qualcomm, Incorporated | Frequency hop sequences for multi-band communication systems |
WO2004077777A1 (en) | 2003-02-28 | 2004-09-10 | Nortel Networks Limited | Sub-carrier allocation for ofdm |
DE10309012B3 (de) * | 2003-03-01 | 2004-08-12 | Hilti Ag | Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine |
JP3898138B2 (ja) | 2003-03-20 | 2007-03-28 | 三菱電機株式会社 | 送信機及び受信機 |
US7254158B2 (en) | 2003-05-12 | 2007-08-07 | Qualcomm Incorporated | Soft handoff with interference cancellation in a wireless frequency hopping communication system |
US7039370B2 (en) * | 2003-10-16 | 2006-05-02 | Flarion Technologies, Inc. | Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems |
US8611283B2 (en) * | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
JP2005242739A (ja) | 2004-02-27 | 2005-09-08 | Hiroshima Industrial Promotion Organization | 遺伝的プログラミングによるデータベース解析の方法およびその装置 |
US20050286663A1 (en) | 2004-06-23 | 2005-12-29 | Intel Corporation | Compact feedback for closed loop MIMO systems |
US8130855B2 (en) * | 2004-11-12 | 2012-03-06 | Interdigital Technology Corporation | Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system |
MX2007007760A (es) * | 2004-12-22 | 2007-08-17 | Qualcomm Inc | Metodos y aparato para salto flexible en una red de comunicacion de acceso multiple. |
US20070071147A1 (en) * | 2005-06-16 | 2007-03-29 | Hemanth Sampath | Pseudo eigen-beamforming with dynamic beam selection |
US7970073B2 (en) * | 2005-10-17 | 2011-06-28 | Samsung Electronics Co., Ltd | Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system |
US8385433B2 (en) | 2005-10-27 | 2013-02-26 | Qualcomm Incorporated | Linear precoding for spatially correlated channels |
RU2527748C2 (ru) * | 2005-10-27 | 2014-09-10 | Квэлкомм Инкорпорейтед | Предварительное кодирование для зависящего от сегмента планирования в беспроводных системах связи |
US7949318B2 (en) * | 2007-02-05 | 2011-05-24 | Nec Laboratories America, Inc. | Multi-rank beamforming precoding apparatus and method |
US7917176B2 (en) * | 2006-02-14 | 2011-03-29 | Nec Laboratories America, Inc. | Structured codebook and successive beamforming for multiple-antenna systems |
KR100996023B1 (ko) * | 2005-10-31 | 2010-11-22 | 삼성전자주식회사 | 다중 안테나 통신 시스템에서 데이터 송수신 장치 및 방법 |
JP4642679B2 (ja) * | 2006-03-14 | 2011-03-02 | 富士通株式会社 | 無線通信装置及び無線通信方法 |
KR100819285B1 (ko) * | 2006-03-16 | 2008-04-02 | 삼성전자주식회사 | 다중 사용자를 지원하는 다중 안테나 시스템에서의 피드 백 정보 송/수신방법 및 그 시스템 |
US7995670B2 (en) * | 2006-05-24 | 2011-08-09 | Samsung Electronics Co., Ltd. | Method of transmitting and receiving data using precoding codebook in multi-user MIMO communication system and transmitter and receiver using the method |
US7949064B2 (en) * | 2006-08-14 | 2011-05-24 | Texas Instruments Incorporated | Codebook and pre-coder selection for closed-loop mimo |
US8630256B2 (en) * | 2006-12-05 | 2014-01-14 | Qualcomm Incorporated | Method and system for reducing backhaul utilization during base station handoff in wireless networks |
WO2008097629A2 (en) * | 2007-02-06 | 2008-08-14 | Interdigital Technology Corporation | Method and apparatus for multiple-input multiple-output feedback generation |
US8451915B2 (en) | 2007-03-21 | 2013-05-28 | Samsung Electronics Co., Ltd. | Efficient uplink feedback in a wireless communication system |
US8824420B2 (en) * | 2007-03-22 | 2014-09-02 | Mitsubishi Electric Research Laboratories, Inc. | Method and system for generating antenna selection signals in OFDM tranceivers with fewer RF chains than antennas in MIMO wireless networks |
US8098755B2 (en) | 2007-09-07 | 2012-01-17 | Broadcom Corporation | Method and system for beamforming in a multiple user multiple input multiple output (MIMO) communication system using a codebook |
-
2008
- 2008-07-29 US US12/181,732 patent/US8798183B2/en active Active
- 2008-08-12 CN CN200880103511.9A patent/CN101843062B/zh active Active
- 2008-08-12 JP JP2010521126A patent/JP5431325B2/ja active Active
- 2008-08-12 CA CA2694168A patent/CA2694168A1/en not_active Abandoned
- 2008-08-12 KR KR1020107005729A patent/KR101030670B1/ko active IP Right Grant
- 2008-08-12 AU AU2008286923A patent/AU2008286923A1/en not_active Abandoned
- 2008-08-12 RU RU2010109400/08A patent/RU2454831C2/ru active
- 2008-08-12 MX MX2010001739A patent/MX2010001739A/es active IP Right Grant
- 2008-08-12 BR BRPI0814945-3A2A patent/BRPI0814945A2/pt not_active IP Right Cessation
- 2008-08-12 WO PCT/US2008/072932 patent/WO2009023681A2/en active Application Filing
- 2008-08-12 EP EP08797724.5A patent/EP2183892B1/en active Active
- 2008-08-13 TW TW097130900A patent/TW200924451A/zh unknown
-
2013
- 2013-08-09 JP JP2013166871A patent/JP2014014101A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2183892B1 (en) | 2013-09-25 |
CA2694168A1 (en) | 2009-02-19 |
MX2010001739A (es) | 2010-03-15 |
US8798183B2 (en) | 2014-08-05 |
WO2009023681A3 (en) | 2009-05-22 |
US20090046800A1 (en) | 2009-02-19 |
CN101843062A (zh) | 2010-09-22 |
RU2454831C2 (ru) | 2012-06-27 |
AU2008286923A1 (en) | 2009-02-19 |
WO2009023681A2 (en) | 2009-02-19 |
JP5431325B2 (ja) | 2014-03-05 |
RU2010109400A (ru) | 2011-09-20 |
JP2014014101A (ja) | 2014-01-23 |
KR101030670B1 (ko) | 2011-04-20 |
CN101843062B (zh) | 2014-03-05 |
TW200924451A (en) | 2009-06-01 |
EP2183892A2 (en) | 2010-05-12 |
JP2011517373A (ja) | 2011-06-02 |
KR20100044258A (ko) | 2010-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0814945A2 (pt) | Transmissão mimo com pré-codificação espacial | |
IL225592A0 (en) | mimo transmission with rank-dependent precoding | |
EP2374252A4 (en) | EFFICIENT MIMO TRANSMISSION SCHEMES | |
EP2274539A4 (en) | AUTOMATICALLY SELECTING GEARBOX WITH TWO TRANSLATIONS | |
EP2360392A4 (en) | TRANSMISSION | |
EP2235400A4 (en) | INSULATOR WITH CUSHIONING | |
EP2345829A4 (en) | GEARBOX | |
BRPI1007838A2 (pt) | transmissão de vídeo através de sdma | |
PL2153565T3 (pl) | Wybór trybu transmisji | |
BRPI0917674A2 (pt) | Combinação herbicida com difluormetanossulfonilanilidas substituídas por dimetoxitriazinila | |
DE602008005259D1 (de) | Kupplungsanordnung | |
BRPI0917472A2 (pt) | Combinação herbicida com difluormeta-nossulfonilanilidas substituídas por dimetoxitriazinila | |
IL207579A0 (en) | Pesticidal combinations | |
PL2491263T3 (pl) | Skrętny zespół tłumiący | |
ZA201100998B (en) | Transmission | |
EP2294525A4 (en) | TRANSMISSION OF SECURE DOCUMENT | |
ATE547643T1 (de) | Kraftübertragungsanordnung | |
BRPI0917340A2 (pt) | estimativa de piloto sdma de uplink | |
GB0803387D0 (en) | Data transmission | |
PL2295832T3 (pl) | Przekładnia | |
DE112008001488A5 (de) | Schaltgetriebe | |
EP2224149A4 (en) | TRANSMISSION | |
GB0805829D0 (en) | Damping arrangement | |
DE112008001898A5 (de) | Vorgelegegetriebe | |
PL2359029T3 (pl) | Przekładnia |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 7A ANUIDADE. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2343 DE 01-12-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |