BRPI0515153A - aparelho de comunicação sem fio e método de comunicação sem fio - Google Patents

aparelho de comunicação sem fio e método de comunicação sem fio

Info

Publication number
BRPI0515153A
BRPI0515153A BRPI0515153-8A BRPI0515153A BRPI0515153A BR PI0515153 A BRPI0515153 A BR PI0515153A BR PI0515153 A BRPI0515153 A BR PI0515153A BR PI0515153 A BRPI0515153 A BR PI0515153A
Authority
BR
Brazil
Prior art keywords
csi
wireless communication
generates
processing part
snr
Prior art date
Application number
BRPI0515153-8A
Other languages
English (en)
Inventor
Akihiko Nishio
Daichi Imamura
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BRPI0515153A publication Critical patent/BRPI0515153A/pt

Links

Classifications

    • 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
    • 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
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

APARELHO DE COMUNICAçãO SEM FIO E MéTODO DE COMUNICAçãO SEM FIO A presente invenção refere-se a um aparelho de comunicação sem fio, onde a quantidade de dados de informação de "feedback" pode ser reduzida, enquanto um alto rendimento é mantido. Neste aparelho, uma parte de processamento de CSI (Informação de Estado de Canal) (38) gera um quadro de CSI com base em uma SNR relação de potência de sinal para potência de ruído) para cada uma das subportadoras medidas, e uma parte de controle de transmissão de CSI (39) gera um sinal de sincronismo e uma informação de controle requeridos para a geração do quadro de CSI, e controla a parte de processamento de CSI (38). A parte de processamento de CSI (38) gera um primeiro quadro (CSI1), o qual compreende a CSI de uma subportadora cuja quantidade de variação de SNR é menor do que um valor limite, em um período de geração que é maior do que o período de geração de um segundo quadro (CSI2) que compreende a CSI de uma subportadora cuja quantidade de variação de SNR é igual a ou maior do que o valor limite.
BRPI0515153-8A 2004-09-10 2005-09-09 aparelho de comunicação sem fio e método de comunicação sem fio BRPI0515153A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004264606 2004-09-10
JP2005246088 2005-08-26
PCT/JP2005/016606 WO2006028204A1 (ja) 2004-09-10 2005-09-09 無線通信装置および無線通信方法

Publications (1)

Publication Number Publication Date
BRPI0515153A true BRPI0515153A (pt) 2008-07-08

Family

ID=36036485

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0515153-8A BRPI0515153A (pt) 2004-09-10 2005-09-09 aparelho de comunicação sem fio e método de comunicação sem fio

Country Status (8)

Country Link
US (1) US20070298728A1 (pt)
EP (1) EP1786129A1 (pt)
JP (1) JPWO2006028204A1 (pt)
KR (1) KR20070067680A (pt)
BR (1) BRPI0515153A (pt)
CA (1) CA2579712A1 (pt)
RU (1) RU2007108554A (pt)
WO (1) WO2006028204A1 (pt)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9661519B2 (en) * 2003-02-24 2017-05-23 Qualcomm Incorporated Efficient reporting of information in a wireless communication system
US8995547B2 (en) 2005-03-11 2015-03-31 Qualcomm Incorporated Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates
US8724740B2 (en) 2005-03-11 2014-05-13 Qualcomm Incorporated Systems and methods for reducing uplink resources to provide channel performance feedback for adjustment of downlink MIMO channel data rates
US8229448B2 (en) 2005-08-01 2012-07-24 Samsung Electronics Co., Ltd. Apparatus and method for adaptive channel quality feedback in a multicarrier wireless network
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US8073068B2 (en) 2005-08-22 2011-12-06 Qualcomm Incorporated Selective virtual antenna transmission
US9338767B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus of implementing and/or using a dedicated control channel
US9137072B2 (en) 2005-12-22 2015-09-15 Qualcomm Incorporated Methods and apparatus for communicating control information
US9125092B2 (en) 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus for reporting and/or using control information
US20070149132A1 (en) 2005-12-22 2007-06-28 Junyl Li Methods and apparatus related to selecting control channel reporting formats
KR20140054456A (ko) * 2006-02-03 2014-05-08 인터디지탈 테크날러지 코포레이션 고속 패킷 액세스 진화 시스템 및 롱텀 진화 시스템에서의 서비스 품질 기반 자원 결정 및 할당 장치 및 프로시저
WO2007100774A1 (en) * 2006-02-28 2007-09-07 Atc Technologies, Llc Systems, methods and transceivers for wireless communications over discontiguous spectrum segments
US9130791B2 (en) 2006-03-20 2015-09-08 Qualcomm Incorporated Uplink channel estimation using a signaling channel
EP1838116A1 (en) * 2006-03-22 2007-09-26 Matsushita Electric Industrial Co., Ltd. Neigboring cell interference management in a SC-FDMA system
US8014455B2 (en) 2006-03-27 2011-09-06 Qualcomm Incorporated Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system
CN101379766B (zh) 2006-03-29 2011-12-14 株式会社日立制作所 宽带无线通信中的资源分配方法、基站装置以及终端装置
JP4760515B2 (ja) * 2006-04-28 2011-08-31 日本電気株式会社 通信システム及びその通信方法並びにそれに用いる移動局及び基地局
JP4189410B2 (ja) * 2006-06-12 2008-12-03 株式会社東芝 無線通信装置及び送信制御方法
US7933606B2 (en) * 2006-06-30 2011-04-26 Nokia Corporation Multi-level control for measurement reports
KR101231339B1 (ko) 2006-08-09 2013-02-07 엘지전자 주식회사 신호대잡음비 추정 방법, 적응적 변조 및 코딩 방식 결정방법 및 수신기
AU2007282272B2 (en) * 2006-08-09 2010-09-23 Lg Electronics Inc. Method of estimating signal-to-noise ratio, method of adjusting feedback information transmission, adaptive modulation and coding method using the same, and transceiver thereof
KR101233177B1 (ko) * 2006-11-24 2013-02-15 엘지전자 주식회사 통신 시스템에서의 적응적 피드백 수행 방법 및 이를구현하는 송수신기
JP5475446B2 (ja) * 2006-08-21 2014-04-16 コーニンクレッカ フィリップス エヌ ヴェ マルチビームｍｉｍｏシステムにおける効率的なｃｑｉ伝達
US8208566B2 (en) 2006-08-21 2012-06-26 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving feedback information in a multi-user MIMO system, and system thereof
CN101512931B (zh) 2006-09-06 2014-03-12 高通股份有限公司 编组天线的码字置换和精简反馈
US8611259B2 (en) 2006-09-08 2013-12-17 Samsung Electronics Co., Ltd. Method and system for providing channel state information feedback in a wireless communication system
ES2901556T3 (es) * 2006-09-26 2022-03-22 Optis Wireless Technology Llc Esquema de comunicaciones para información de calidad de canal
CN101170316B (zh) * 2006-10-24 2011-01-05 华为技术有限公司 下行信道信息反馈和接收的方法及设备
TWI470957B (zh) 2006-10-30 2015-01-21 Interdigital Tech Corp 無線通信系統中處理反饋方法及裝置
EP2103017B1 (en) 2007-03-29 2014-01-08 LG Electronics Inc. Method of transmitting sounding reference signal in wireless communication system
WO2008135833A2 (en) * 2007-05-07 2008-11-13 Nokia Corporation Feedback and link adaptation techniques for wireless networks
EP2168256B1 (en) * 2007-06-14 2018-03-28 Electronics and Telecommunications Research Institute Transmitter/receiver for controlling multiuser multiple input multiple output system and method thereof
CN101617490B (zh) * 2007-06-26 2013-09-04 美国博通公司 应用于多天线系统的用于在不同的闭环、开环和混合技术之间进行自适应的方法和系统
CN101350697B (zh) * 2007-07-19 2011-11-16 富士通株式会社 符号交织信道映射装置和方法以及移动通信系统
CN101669304B (zh) 2007-08-14 2013-08-28 Lg电子株式会社 用于获取用于phich的资源范围信息的方法和接收pdcch的方法
KR101507785B1 (ko) 2007-08-16 2015-04-03 엘지전자 주식회사 다중 입출력 시스템에서, 채널품질정보를 송신하는 방법
KR101405974B1 (ko) 2007-08-16 2014-06-27 엘지전자 주식회사 다중입력 다중출력 시스템에서 코드워드를 전송하는 방법
KR101337808B1 (ko) * 2007-09-04 2013-12-06 엘지전자 주식회사 밴드 ａｍｃ에서의 채널 상태 보고 방법
US8400928B2 (en) 2007-09-04 2013-03-19 Lg Electronics Inc. Method of reporting channel state
US7970067B1 (en) * 2007-10-31 2011-06-28 Samsung Electronics Co., Ltd. OFDM receiver and method for enhancing channel estimation performance in communication environment where high doppler frequency exists
US8699960B2 (en) 2007-12-21 2014-04-15 Qualcomm Incorporated Methods and apparatus for channel quality indication feedback in a communication system
JP5019294B2 (ja) * 2008-02-28 2012-09-05 独立行政法人情報通信研究機構 受信装置、信号等化装置及び方法
US9072060B2 (en) * 2008-06-03 2015-06-30 Nokia Technologies Oy Method, apparatus and computer program for power control to mitigate interference
JPWO2009157523A1 (ja) * 2008-06-27 2011-12-15 京セラ株式会社 無線通信装置及び無線通信方法
KR20110014226A (ko) * 2008-06-27 2011-02-10 쿄세라 코포레이션 무선 통신 장치 및 무선 통신 방법
US20110261893A1 (en) * 2008-06-27 2011-10-27 Kyocera Corporation Wireless communication apparatus and wireless communication method
JP5251304B2 (ja) * 2008-07-04 2013-07-31 日本電気株式会社 通信システム、無線通信装置、及び通信方法
US8554200B2 (en) * 2008-09-12 2013-10-08 Nokia Corporation Method and apparatus for providing interference measurements for device to-device communication
JP2010081396A (ja) * 2008-09-26 2010-04-08 Kyocera Corp 無線通信装置及び無線通信方法
JP5195920B2 (ja) * 2008-12-17 2013-05-15 日本電気株式会社 無線通信システムおよび無線装置
EP2337235B1 (en) * 2009-12-21 2013-04-17 Fujitsu Limited Feedback interval control in MIMO-systems
US20110199946A1 (en) * 2010-02-17 2011-08-18 Qualcomm Incorporated Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems
KR101871707B1 (ko) * 2010-04-02 2018-06-27 엘지전자 주식회사 무선통신 시스템에서 채널상태정보 피드백 하는 단말 장치 및 그 방법
WO2011129547A2 (ko) * 2010-04-12 2011-10-20 엘지전자 주식회사 다중 노드 시스템에서 단말의 피드백 정보 전송 방법 및 장치
WO2012008815A2 (ko) * 2010-07-16 2012-01-19 엘지전자 주식회사 제어 정보를 전송하는 방법 및 이를 위한 장치
US8428633B2 (en) * 2010-08-31 2013-04-23 Intel Corporation Combined channel state information and combined channel quality indicator in wireless communication systems
TWI436616B (zh) 2011-12-29 2014-05-01 Ind Tech Res Inst 通道估計的裝置及其方法
KR102055332B1 (ko) * 2012-05-17 2019-12-12 삼성전자 주식회사 셀룰러 이동 통신 시스템에서 협력 통신을 위한 채널 추정 방법 및 장치
WO2014003458A1 (en) * 2012-06-28 2014-01-03 Lg Electronics Inc. Method for feeding back channel state information in wireless communication system and apparatus therefor
US9408206B2 (en) * 2013-12-08 2016-08-02 Alcatel Lucent Resource allocation in support of voice over internet protocol (VoIP) in a orthogonal frequency division multiple access (OFDMA) system
KR102157286B1 (ko) 2013-12-27 2020-09-17 삼성전자주식회사 무선 통신 시스템에서 전송률을 제어하기 위한 방법 및 장치
KR101831574B1 (ko) * 2015-01-20 2018-02-22 소니 주식회사 허가 지원 액세스를 제공하기 위한 사용자 장비, 셀룰러 네트워크 노드 및 방법
US11592913B2 (en) * 2015-07-17 2023-02-28 Origin Wireless, Inc. Method, apparatus, and system for wireless writing tracking
US10044373B2 (en) * 2016-12-30 2018-08-07 Hughes Network Systems, Llc Optimized ACM trajectory systems and methods
US11356194B2 (en) 2018-03-13 2022-06-07 Megachips Corporation Communication system using wired transmission line and multi-carrier modulation
US10680683B2 (en) 2018-05-02 2020-06-09 Lg Electronics Inc. Signal transmission/reception method in wireless LAN system, and device therefor
TWI774199B (zh) * 2021-01-19 2022-08-11 緯創資通股份有限公司 通道狀態資訊之表示方法及其相關接收裝置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6389296B1 (en) * 1997-10-08 2002-05-14 Oki Electric Industry Co., Ltd. Transmission power control method
JP3389178B2 (ja) * 1999-11-30 2003-03-24 株式会社東芝 Ｏｆｄｍダイバーシチ受信装置
US7590095B2 (en) * 2000-02-14 2009-09-15 Qualcomm Incorporated Method and apparatus for power control of multiple channels in a wireless communication system
US6996069B2 (en) * 2000-02-22 2006-02-07 Qualcomm, Incorporated Method and apparatus for controlling transmit power of multiple channels in a CDMA communication system
JP3826653B2 (ja) * 2000-02-25 2006-09-27 Ｋｄｄｉ株式会社 無線通信システムのサブキャリア割当方法
US6751187B2 (en) * 2001-05-17 2004-06-15 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
JP3607643B2 (ja) * 2001-07-13 2005-01-05 松下電器産業株式会社 マルチキャリア送信装置、マルチキャリア受信装置、およびマルチキャリア無線通信方法
US7012883B2 (en) * 2001-11-21 2006-03-14 Qualcomm Incorporated Rate selection for an OFDM system
JP3875086B2 (ja) * 2001-11-30 2007-01-31 ソフトバンクテレコム株式会社 直交周波数分割多重システムおよび送受信装置
US7050759B2 (en) * 2002-02-19 2006-05-23 Qualcomm Incorporated Channel quality feedback mechanism and method
JP4067873B2 (ja) * 2002-05-24 2008-03-26 三菱電機株式会社 無線伝送装置
JP4256158B2 (ja) * 2002-12-26 2009-04-22 パナソニック株式会社 無線通信装置及び無線通信方法

Also Published As

Publication number Publication date
KR20070067680A (ko) 2007-06-28
US20070298728A1 (en) 2007-12-27
JPWO2006028204A1 (ja) 2008-05-08
WO2006028204A1 (ja) 2006-03-16
RU2007108554A (ru) 2008-09-20
CA2579712A1 (en) 2006-03-16
EP1786129A1 (en) 2007-05-16

Similar Documents

Publication Publication Date Title
BRPI0515153A (pt) aparelho de comunicação sem fio e método de comunicação sem fio
JP5453369B2 (ja) Ｐａｒ考察を備えたｕｌｍｉｍｏ／ｓｉｍｏ動作のための電力割り当ておよび／またはレート選択のための方法および装置
KR100702727B1 (ko) 잠재적으로 전송 게이팅 또는 캐핑된 통신 시스템에서 전송 전력을 제어하는 방법 및 장치
Pedersen et al. Frequency domain scheduling for OFDMA with limited and noisy channel feedback
US7013160B2 (en) Method and apparatus for performing fast power control in a mobile communication system
TW535371B (en) Method and apparatus for link quality feedback in a wireless communication
US8300542B2 (en) VoIP performance optimization for E-DCH power limitation
JP2012095294A5 (pt)
EP2084869B1 (en) METHOD AND APPARATUS FOR Traffic-to-pilot ratio estimation IN A WIRELESS COMMUNICATION DEVICE
EP1227639A2 (en) Network service for adaptive mobile applications
US20080123762A1 (en) Optimum radio communication method with radio frame variable control and radio communication system using the same
HK1095446A1 (en) Quality determination for a wireless communications link
JP2006518175A (ja) 無線通信システムにおいて外部ループ・パワー制御を実行するためのシステム及び方法
BRPI0722421A2 (pt) Método e equipamento para ajustes para controle de potência com base em delta em sistemas de comunicação sem fio
WO2006098825A3 (en) System and method for dynamic bandwidth estimation of network links
JP2005510904A (ja) Ｏｆｄｍ通信システムのための適応率制御
US20080232484A1 (en) Method and apparatus for improved estimation of selective channels in an ofdma system with dedicated pilot tones
BRPI0416435A (pt) método e aparelho de fornecimento de informações de controle de potência individuais em uma rede de área local sem fio e rede de área ampla sem fio (wlan/wwan)
KR20110098828A (ko) 무선 통신 장치 및 서브 캐리어의 할당 방법
JP2009506583A (ja) スペクトル拡散システム内のチャネル予測支援用の適応型パイロット構造
BR9913816A (pt) Sìmbolos protótipos
CN101174858A (zh) 功率控制方法及功率控制装置
JP2011520320A (ja) 適応性のある電力制御のための方法、装置、および製造物品
HUE025750T2 (en) Procedure and equipment for setting gain factors for dedicated physical channels in a mobile telecommunications system
US8208497B2 (en) Time stamped packet data interface between a modem and an RF unit

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 AS 5A E 6A ANUIDADES.

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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.