BRPI0519539A2 - prediÇço de classificaÇço com base em capacidade para projeto mimo - Google Patents

prediÇço de classificaÇço com base em capacidade para projeto mimo

Info

Publication number
BRPI0519539A2
BRPI0519539A2 BRPI0519539-0A BRPI0519539A BRPI0519539A2 BR PI0519539 A2 BRPI0519539 A2 BR PI0519539A2 BR PI0519539 A BRPI0519539 A BR PI0519539A BR PI0519539 A2 BRPI0519539 A2 BR PI0519539A2
Authority
BR
Brazil
Prior art keywords
tone
snrs
awgn
project
capacity
Prior art date
Application number
BRPI0519539-0A
Other languages
English (en)
Inventor
Hemanth Sampath
Tamer Kadous
Original Assignee
Qualcomm Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0519539A2 publication Critical patent/BRPI0519539A2/pt

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
    • 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
    • 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]
    • 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
    • H04L1/0023—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
    • 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
    • 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]
    • 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
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • 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
    • 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
    • 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]
    • 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
    • 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

Landscapes

  • 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)

Abstract

PREDIÇçO DE CLASSIFICAÇçO COM BASE EM CAPACIDADE PARA PROJETO MIMO. O desempenho de um único projeto de Palavra Código énica (SCW) com receptor MMSE de baixa complexidade e predição de classificação é semelhante ao projeto de Múltiplas Palavras Código (MCW) com cancelamento de interferência sucessivo (SIC) . Um método de predição de classificação compreende calcular matrizes de canal MIMO correspondendo a transmissões de camada para cada tom, calcular razões de sinal para ruído (SNRs) para cada tom com base nas matrizes de canal MIMO, mapear a SNR para cada tom para gerar SNRs efetivas para cada transmissão de camada, calcular capacidades de ruído Caussiano branco aditivo (AWGN) correspondendo às SNRs efetivas e maximizar uma eficiência espectral total com base nas capacidades de AWGN, e selecionar uma classificação com base na maximização da eficiência espectral total.
BRPI0519539-0A 2004-12-22 2005-12-22 prediÇço de classificaÇço com base em capacidade para projeto mimo BRPI0519539A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/022,347 US7567621B2 (en) 2004-07-21 2004-12-22 Capacity based rank prediction for MIMO design
PCT/US2005/047643 WO2006069397A2 (en) 2004-12-22 2005-12-22 Capacity based rank prediction for mimo design

Publications (1)

Publication Number Publication Date
BRPI0519539A2 true BRPI0519539A2 (pt) 2009-02-17

Family

ID=36127500

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0519539-0A BRPI0519539A2 (pt) 2004-12-22 2005-12-22 prediÇço de classificaÇço com base em capacidade para projeto mimo

Country Status (16)

Country Link
US (1) US7567621B2 (pt)
EP (1) EP1832032A2 (pt)
JP (1) JP2008526137A (pt)
KR (1) KR100940466B1 (pt)
CN (1) CN101124759A (pt)
AU (1) AU2005318993B2 (pt)
BR (1) BRPI0519539A2 (pt)
CA (1) CA2591609A1 (pt)
IL (1) IL183999A0 (pt)
MX (1) MX2007007757A (pt)
NO (1) NO20073178L (pt)
NZ (1) NZ556045A (pt)
RU (1) RU2378767C2 (pt)
UA (1) UA90495C2 (pt)
WO (1) WO2006069397A2 (pt)
ZA (1) ZA200705129B (pt)

Families Citing this family (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9130810B2 (en) * 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US9148256B2 (en) * 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US8023589B2 (en) * 2004-08-09 2011-09-20 Texas Instruments Incorporated Wireless MIMO transmitter with antenna and tone precoding blocks
EP1628425B1 (en) * 2004-08-17 2012-12-26 Samsung Electronics Co., Ltd. Apparatus and method for space-time-frequency block coding
US20080260053A1 (en) * 2004-11-04 2008-10-23 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving data using space-time block coding
US20060093061A1 (en) * 2004-11-04 2006-05-04 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving data using space-time block coding
KR100909539B1 (ko) * 2004-11-09 2009-07-27 삼성전자주식회사 다중 안테나를 사용하는 광대역 무선 접속 시스템에서 다양한 다중안테나 기술을 지원하기 위한 장치 및 방법
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8446892B2 (en) * 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US20090213950A1 (en) * 2005-03-17 2009-08-27 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
KR101124932B1 (ko) * 2005-05-30 2012-03-28 삼성전자주식회사 어레이 안테나를 이용하는 이동 통신 시스템에서의 데이터송/수신 장치 및 방법
US8842693B2 (en) 2005-05-31 2014-09-23 Qualcomm Incorporated Rank step-down for MIMO SCW design employing HARQ
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8611284B2 (en) * 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8879511B2 (en) * 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8126066B2 (en) * 2005-06-09 2012-02-28 Telefonaktiebolaget Lm Ericsson (Publ) Time and frequency channel estimation
US9179319B2 (en) * 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8599945B2 (en) * 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US9209956B2 (en) * 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US8644292B2 (en) * 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US20070047495A1 (en) * 2005-08-29 2007-03-01 Qualcomm Incorporated Reverse link soft handoff in a wireless multiple-access communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US9144060B2 (en) * 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9225416B2 (en) * 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8693405B2 (en) * 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US9210651B2 (en) * 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9172453B2 (en) * 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US9225488B2 (en) * 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US8582509B2 (en) * 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
EP1780924A1 (en) * 2005-10-31 2007-05-02 Siemens Aktiengesellschaft Method to determine the number of data streams to be used in a MIMO system
US7917176B2 (en) * 2006-02-14 2011-03-29 Nec Laboratories America, Inc. Structured codebook and successive beamforming for multiple-antenna systems
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8831607B2 (en) * 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
US8116267B2 (en) * 2006-02-09 2012-02-14 Samsung Electronics Co., Ltd. Method and system for scheduling users based on user-determined ranks in a MIMO system
US8689025B2 (en) * 2006-02-21 2014-04-01 Qualcomm Incorporated Reduced terminal power consumption via use of active hold state
CN105024794B (zh) * 2006-02-21 2019-03-08 高通股份有限公司 用于支持ofdm和cdma方案的方法与装置
US8077595B2 (en) 2006-02-21 2011-12-13 Qualcomm Incorporated Flexible time-frequency multiplexing structure for wireless communication
US9461736B2 (en) * 2006-02-21 2016-10-04 Qualcomm Incorporated Method and apparatus for sub-slot packets in wireless communication
WO2008021392A2 (en) * 2006-08-17 2008-02-21 Interdigital Technology Corporation Method and apparatus for reducing a peak-to-average power ratio in a multiple-input multiple-output system
EP2854304B1 (en) * 2006-08-18 2016-02-03 Qualcomm Incorporated Feedback of precoding control indication (PCI) and channel quality indication (CQI) in a wireless communication system
US8271043B2 (en) * 2006-08-21 2012-09-18 Qualcomm Incorporated Approach to a unified SU-MIMO/MU-MIMO operation
US7839835B2 (en) 2006-08-22 2010-11-23 Nec Laboratories America, Inc. Quantized precoding over a set of parallel channels
US7944985B2 (en) 2006-08-24 2011-05-17 Interdigital Technology Corporation MIMO transmitter and receiver for supporting downlink communication of single channel codewords
US20080069074A1 (en) * 2006-09-18 2008-03-20 Interdigital Technology Corporation Successive interference cancellation for multi-codeword transmissions
TWI337462B (en) * 2006-09-26 2011-02-11 Realtek Semiconductor Corp Receiver of mimo multi-carrier system and associated apparatus and method for receive antenna selection
US7661038B2 (en) * 2006-10-09 2010-02-09 Intel Corporation Link adaptation for retransmission error-control technique transmissions
WO2008086239A1 (en) * 2007-01-04 2008-07-17 Texas Instruments Incorporated Precoding codebook for mimo systems
TWI452859B (zh) * 2007-01-05 2014-09-11 Lg Electronics Inc 用於mimo系統之層對映方法與資料傳輸
RU2452088C2 (ru) * 2007-02-14 2012-05-27 Телефонактиеболагет Лм Эрикссон (Пабл) Способы и системы для отображения кодового слова в слой
KR100944994B1 (ko) * 2007-07-04 2010-03-05 삼성전자주식회사 다중 입출력 무선통신 시스템에서 스트림별 유효 신호대잡음비 생성 장치 및 방법
US8630184B2 (en) * 2007-08-15 2014-01-14 Qualcomm Incorporated Uplink control channel format
JP5109707B2 (ja) * 2008-02-19 2012-12-26 コニカミノルタビジネステクノロジーズ株式会社 定着装置及び画像形成装置
US8077802B2 (en) * 2008-03-17 2011-12-13 Intel Corporation Device, system, and method of resource allocation in a wireless network
CN101594223B (zh) * 2008-05-29 2012-03-14 展讯通信（上海）有限公司 无线收发方法及其设备
WO2010000095A1 (zh) * 2008-07-01 2010-01-07 上海贝尔阿尔卡特股份有限公司 利用预编码解相关进行开环空间复用的方法
KR101565417B1 (ko) 2008-08-08 2015-11-03 엘지전자 주식회사 다중 주파수 대역 시스템에서의 자원 할당하는 방법 및 장치
US8737246B2 (en) * 2009-02-24 2014-05-27 Panasonic Corporation Wireless transmission apparatus and precoding method
CN102349344B (zh) 2009-03-09 2014-08-20 日本电气株式会社 秩估计设备、接收机、通信系统和秩估计方法
US20100232384A1 (en) * 2009-03-13 2010-09-16 Qualcomm Incorporated Channel estimation based upon user specific and common reference signals
EP2234315B1 (en) 2009-03-27 2018-02-14 Sony Corporation Division of bit streams to produce spatial paths for multicarrier transmission
JP5684232B2 (ja) * 2009-04-21 2015-03-11 アップル インコーポレイテッド 無線通信ネットワークにおける基地局及びチャネル品質予測方法
KR101683115B1 (ko) 2009-06-15 2016-12-06 엘지전자 주식회사 무선 통신 시스템에서 상향링크 전력 제어 방법 및 장치
WO2011085581A1 (zh) * 2010-01-12 2011-07-21 中兴通讯股份有限公司 信道状态信息反馈方法和用户终端
US8737496B2 (en) * 2010-04-01 2014-05-27 Telefonaktiebolaget L M Ericsson (Publ) Channel quality estimation for MLSE receiver
US8213873B2 (en) * 2010-04-09 2012-07-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for channel quality reporting in a wireless communication system
US8446939B2 (en) * 2010-04-21 2013-05-21 Telefonaktiebolaget L M Ericsson (Publ) Channel quality estimation for MLSE MIMO receiver
US9319105B2 (en) 2010-06-29 2016-04-19 Lattice Semiconductor Corporation Methods and systems for near-field MIMO communications
KR101752824B1 (ko) * 2010-09-29 2017-06-30 삼성전자주식회사 다중 입출력 통신 시스템에서의 피드백 방법 및 장치
CN102752082B (zh) * 2011-04-22 2015-09-16 中兴通讯股份有限公司 一种多天线数据的发送方法及系统
CN102882657B (zh) * 2011-07-15 2018-01-23 瑞典爱立信有限公司 用于上行链路秩自适应的方法、设备和系统
US8743988B2 (en) 2011-07-29 2014-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Transmission mode adaptation in a wireless network
US9450658B1 (en) * 2015-08-06 2016-09-20 Mediatek Inc. Method for transmitting extra spatial layers over the wireless channel
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US11290172B2 (en) 2018-11-27 2022-03-29 XCOM Labs, Inc. Non-coherent cooperative multiple-input multiple-output communications
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10756782B1 (en) 2019-04-26 2020-08-25 XCOM Labs, Inc. Uplink active set management for multiple-input multiple-output communications
US11032841B2 (en) 2019-04-26 2021-06-08 XCOM Labs, Inc. Downlink active set management for multiple-input multiple-output communications
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
CA3175361A1 (en) 2020-04-15 2021-10-21 Tamer Adel Kadous Wireless network multipoint association and diversity
EP4158795A4 (en) 2020-05-26 2024-06-19 Xcom Labs, Inc. BEAMFORMING ACCOUNTING FOR INTERFERENCE
WO2022087569A1 (en) 2020-10-19 2022-04-28 XCOM Labs, Inc. Reference signal for wireless communication systems
WO2022093988A1 (en) 2020-10-30 2022-05-05 XCOM Labs, Inc. Clustering and/or rate selection in multiple-input multiple-output communication systems

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363568B1 (en) * 1991-11-25 2002-04-02 Zooth, Inc. Child's utensil
US5603096A (en) * 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
JP3437291B2 (ja) * 1994-11-14 2003-08-18 キヤノン株式会社 再生装置および再生方法
US6154484A (en) * 1995-09-06 2000-11-28 Solana Technology Development Corporation Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
US5790537A (en) * 1996-05-15 1998-08-04 Mcgill University Interference suppression in DS-CDMA systems
US6141317A (en) * 1996-08-22 2000-10-31 Tellabs Operations, Inc. Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
US6175550B1 (en) * 1997-04-01 2001-01-16 Lucent Technologies, Inc. Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof
US6075797A (en) * 1997-10-17 2000-06-13 3Com Corporation Method and system for detecting mobility of a wireless-capable modem to minimize data transfer rate renegotiations
US6067315A (en) * 1997-12-04 2000-05-23 Telefonaktiebolaget Lm Ericsson Method and apparatus for coherently-averaged power estimation
US6654429B1 (en) * 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
US6219161B1 (en) * 1999-01-25 2001-04-17 Telcordia Technologies, Inc. Optical layer survivability and security system
US6487243B1 (en) * 1999-03-08 2002-11-26 International Business Machines Corporation Modems, methods, and computer program products for recovering from errors in a tone reversal sequence between two modems
US6249683B1 (en) * 1999-04-08 2001-06-19 Qualcomm Incorporated Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel
US6539213B1 (en) * 1999-06-14 2003-03-25 Time Domain Corporation System and method for impulse radio power control
US6633614B1 (en) * 1999-09-15 2003-10-14 Telcordia Technologies, Inc. Multicarrier personal access communication system
FI117465B (fi) * 2000-02-03 2006-10-31 Danisco Sweeteners Oy Menetelmä pureskeltavien ytimien kovapinnoittamiseksi
US6985434B2 (en) * 2000-09-01 2006-01-10 Nortel Networks Limited Adaptive time diversity and spatial diversity for OFDM
US6829293B2 (en) * 2001-01-16 2004-12-07 Mindspeed Technologies, Inc. Method and apparatus for line probe signal processing
US6478422B1 (en) * 2001-03-19 2002-11-12 Richard A. Hansen Single bifocal custom shooters glasses
US6771706B2 (en) * 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US6785341B2 (en) * 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US20030112745A1 (en) * 2001-12-17 2003-06-19 Xiangyang Zhuang Method and system of operating a coded OFDM communication system
US6636568B2 (en) * 2002-03-01 2003-10-21 Qualcomm Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system
US7184713B2 (en) * 2002-06-20 2007-02-27 Qualcomm, Incorporated Rate control for multi-channel communication systems
DE10254384B4 (de) 2002-11-17 2005-11-17 Siemens Ag Bidirektionales Signalverarbeitungsverfahren für ein MIMO-System mit einer rangadaptiven Anpassung der Datenübertragungsrate
US6917821B2 (en) * 2003-09-23 2005-07-12 Qualcomm, Incorporated Successive interference cancellation receiver processing with selection diversity
US7508748B2 (en) * 2003-10-24 2009-03-24 Qualcomm Incorporated Rate selection for a multi-carrier MIMO system
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US7940710B2 (en) * 2004-12-22 2011-05-10 Qualcomm Incorporated Methods and apparatus for efficient paging in a wireless communication system
US7543197B2 (en) * 2004-12-22 2009-06-02 Qualcomm Incorporated Pruned bit-reversal interleaver
US8179876B2 (en) * 2004-12-22 2012-05-15 Qualcomm Incorporated Multiple modulation technique for use in a communication system

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