BRPI0518434A2 - aparelho e mÉtodo para processar sinal digital em um sistema de comunicaÇço sem fio ofdma - Google Patents

aparelho e mÉtodo para processar sinal digital em um sistema de comunicaÇço sem fio ofdma

Info

Publication number
BRPI0518434A2
BRPI0518434A2 BRPI0518434-7A BRPI0518434A BRPI0518434A2 BR PI0518434 A2 BRPI0518434 A2 BR PI0518434A2 BR PI0518434 A BRPI0518434 A BR PI0518434A BR PI0518434 A2 BRPI0518434 A2 BR PI0518434A2
Authority
BR
Brazil
Prior art keywords
wireless communication
communication system
digital signal
subcarriers
ofdma
Prior art date
Application number
BRPI0518434-7A
Other languages
English (en)
Inventor
Seong-Wook Song
Yong-Chul Song
Young-Mo Gu
Min-Goo Kim
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BRPI0518434A2 publication Critical patent/BRPI0518434A2/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
    • 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
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H04L27/263—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators modification of IFFT/IDFT modulator for performance improvement
    • 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—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

APARELHO E MÉTODO PARA PROCESSAR SINAL DIGITAL EM UM SISTEMA DE COMUNICAÇAO SEM FIO OFDMA. É fornecido um aparelho e método para processar um sinal digital em um sistema de comunicação sem fio de acesso múltiplo por divisão de freqúência ortogonal (OFDMA) . No aparelho, uma memória armazena o número de subportadoras alocadas para o terminal móvel e armazena um coeficiente de Transformada de Fourier discreta inversa (IDFT). Uma controladora emite um sinal de seleção de modo indicando o modo de transmissão ou o modo de recepção. Um bloco de Transformada de Fourier rápida inversa multiplica o primeiro resultado obtido pela determinação de uma largura de bit para o coeficiente de IDFT de acordo com o número de subportadoras por um segundo resultado obtido pela determinação da largura de bit para os dados de acordo com o número de subportadoras.
BRPI0518434-7A 2004-11-16 2005-11-16 aparelho e mÉtodo para processar sinal digital em um sistema de comunicaÇço sem fio ofdma BRPI0518434A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20040093519 2004-11-16
PCT/KR2005/003881 WO2006054861A1 (en) 2004-11-16 2005-11-16 Apparatus and method for processing digital signal in an ofdma wireless communication system

Publications (1)

Publication Number Publication Date
BRPI0518434A2 true BRPI0518434A2 (pt) 2008-11-18

Family

ID=36407372

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0518434-7A BRPI0518434A2 (pt) 2004-11-16 2005-11-16 aparelho e mÉtodo para processar sinal digital em um sistema de comunicaÇço sem fio ofdma

Country Status (6)

Country Link
US (1) US7609609B2 (pt)
KR (1) KR100724991B1 (pt)
CN (1) CN101057474B (pt)
BR (1) BRPI0518434A2 (pt)
RU (1) RU2349051C2 (pt)
WO (1) WO2006054861A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7817734B2 (en) * 2005-10-18 2010-10-19 Cisco Technology, Inc. System and method for improving signal to quantization noise ratio of an OFDMA modulator
JP2007329588A (ja) * 2006-06-06 2007-12-20 Fujitsu Ltd 送信機及び送信方法
JP4978384B2 (ja) * 2006-10-31 2012-07-18 日本電気株式会社 移動通信システム、送信装置、および送信信号生成方法
KR101531515B1 (ko) * 2008-07-04 2015-06-26 엘지전자 주식회사 파일롯 서브캐리어 할당을 사용하는 복수개의 송신 안테나를 갖는 무선 통신 시스템
CN101964770B (zh) * 2009-07-22 2014-02-26 中兴通讯股份有限公司 Ofdm子载波调制方法和系统
CN102118139B (zh) * 2009-12-31 2014-03-19 中兴通讯股份有限公司 一种处理滤波器的有限精度效应的方法及装置
CN102185821B (zh) * 2011-05-10 2014-04-23 哈尔滨工业大学 恶劣电磁环境下基于认知无线电的通信弱信号高质量抗干扰通信系统
JP5592966B2 (ja) * 2013-02-27 2014-09-17 株式会社東芝 情報処理装置、受信機および情報処理方法
JP6865847B2 (ja) * 2017-04-19 2021-04-28 シャンハイ カンブリコン インフォメーション テクノロジー カンパニー リミテッドＳｈａｎｇｈａｉ Ｃａｍｂｒｉｃｏｎ Ｉｎｆｏｒｍａｔｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ． 処理装置、チップ、電子設備及び方法
EP4573473A4 (en) * 2022-08-31 2026-03-11 Jio Platforms Ltd SYSTEM AND METHOD FOR PROVIDING MULTIPLE BANDWIDTH SUPPORT USING A FREQUENCY-SHIFT DEVICE
CN115412204B (zh) * 2022-08-31 2023-09-08 深圳云豹智能有限公司 一种循环冗余校验的实现方法、装置和存储介质

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0139527B1 (ko) 1988-10-21 1998-07-01 아르레뜨 다낭제 변조파 전송 방법 및 이 방법을 구현하기 위한 송.수신기
FR2672755B1 (fr) 1991-02-12 1993-05-07 Thomson Csf Procede de codage en binaire des points d'une constellation utilisee dans une modulation multiporteuse de type ofdm.
US5537398A (en) 1995-05-12 1996-07-16 Motorola, Inc. Apparatus for multi-rate simulcast communications
JP3665423B2 (ja) * 1995-08-28 2005-06-29 セイコーエプソン株式会社 高速フーリエ変換演算器及び高速フーリエ変換演算装置
JPH09130362A (ja) * 1995-10-30 1997-05-16 Sony Corp 受信装置および受信方法
US5999573A (en) * 1997-08-29 1999-12-07 Ericsson Inc. Wideband channelization with variable sampling frequency
JPH11136180A (ja) * 1997-10-31 1999-05-21 Sony Corp データ通信方法、送信装置及びセルラー無線通信システム
JP3152217B2 (ja) * 1998-10-09 2001-04-03 日本電気株式会社 有線伝送装置及び有線伝送方法
KR100311917B1 (ko) 1999-05-26 2001-11-22 오성근 사이클릭 프리픽스(ｃｙｃｌｉｃ ｐｒｅｆｉｘ)를 갖는 ＯＦＤＭ 전송 장치 및 방법
US6985432B1 (en) * 2000-01-28 2006-01-10 Zion Hadad OFDM communication channel
US7046746B1 (en) * 2001-03-19 2006-05-16 Cisco Systems Wireless Networking (Australia) Pty Limited Adaptive Viterbi decoder for a wireless data network receiver
CN1212735C (zh) * 2002-06-07 2005-07-27 三星电子株式会社 正交频分复用多载波调制数字广播信号的方法及发送器
JP4119763B2 (ja) 2003-02-04 2008-07-16 富士通株式会社 干渉抑制装置及び干渉抑制システム
KR100542114B1 (ko) * 2003-03-27 2006-01-10 주식회사 케이티프리텔 직교 주파수 분할 다중화 기반의 무선 통신 시스템 및 그 채널 보상 방법
US20040252776A1 (en) * 2003-06-11 2004-12-16 Jaiganesh Balakrishnan Low data rate/low power multi-band-OFDM
KR20060044126A (ko) * 2004-11-11 2006-05-16 삼성전자주식회사 직교 분할 다중 접속 시스템에서 프리앰블 생성 및 셀검출을 수행하는 장치 및 방법

Also Published As

Publication number Publication date
US20060120266A1 (en) 2006-06-08
RU2007110022A (ru) 2008-10-20
CN101057474A (zh) 2007-10-17
US7609609B2 (en) 2009-10-27
KR20060055386A (ko) 2006-05-23
KR100724991B1 (ko) 2007-06-04
CN101057474B (zh) 2010-12-01
WO2006054861A1 (en) 2006-05-26
RU2349051C2 (ru) 2009-03-10

Similar Documents

Publication Publication Date Title
BRPI0518434A2 (pt) aparelho e mÉtodo para processar sinal digital em um sistema de comunicaÇço sem fio ofdma
KR101963819B1 (ko) 복수의 요청에 대한 응답에서 사용자 단말로부터의 사운딩 기준 신호의 전송
FI3454516T3 (fi) Menetelmä ja laitteisto datan ja ohjaustiedon multipleksoimiseksi langattomissa tietoliikennejärjestelmissä taajuusjakomonikäytön perusteella
RU2013115312A (ru) Устройство беспроводной связи и способ выделения поднесущих
CN109565433A (zh) 传输导频信号的方法、终端设备和网络侧设备
AU2001271322A1 (en) Sliding-window processing for the reception of multicarrier signals
EP1811701A3 (en) Method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA system
TW200729787A (en) Apparatus and method for transmitting data using a plurality of carriers
WO2008084719A1 (ja) Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法
EP1463251A3 (en) Multicarrier transmission with channel estimation
WO2010009004A3 (en) Method and system for detecting adjacent channel interference for ofdm/ofdma based broadband wireless access
IL264474B2 (en) Information transmission method and information transmission device
CA2433909A1 (en) Apparatus and method for reducing papr in an ofdm mobile communication system
IL266879B1 (en) Information transmission method, terminal device and network device
JP2018504028A5 (pt)
EP2154811A3 (en) Method for transmitting an uplink sounding reference signal for an LTE system
BRPI0707805B1 (pt) método e aparelho de estimativa de canal para um receptor de um sistema de multiplexação por divisão de frequência ortogonal
WO2009157741A3 (en) Apparatus and method for data transmission in sc-fdma system with multiple antennas
EP1603294A3 (en) Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system
KR20080044236A (ko) 직교 주파수 분할 다중(ｏｆｄｍ) 시스템에서 순환프리픽스를 적응시키는 시스템 및 방법
CN101282160B (zh) 正交频分复用系统的配置方法
CN108289069B (zh) 一种参考信号的传输方法、发送端和接收端
CN109845147A (zh) 用于传输上行信号的方法和装置
CN101383656A (zh) 一种基于速度和信道质量指示的优化导频的方法及装置
KR20120092270A (ko) 무선 통신 시스템에서 채널 추정 방법 및 장치

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 4A, 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.