BR0000966A - Sistema de acesso múltiplo de espectro difuso baseado em multiplexação de divisão de frequência ortogonal usando antena direcional - Google Patents

Sistema de acesso múltiplo de espectro difuso baseado em multiplexação de divisão de frequência ortogonal usando antena direcional

Info

Publication number
BR0000966A
BR0000966A BR0000966-0A BR0000966A BR0000966A BR 0000966 A BR0000966 A BR 0000966A BR 0000966 A BR0000966 A BR 0000966A BR 0000966 A BR0000966 A BR 0000966A
Authority
BR
Brazil
Prior art keywords
sub
sector
band
cell
tones
Prior art date
Application number
BR0000966-0A
Other languages
English (en)
Inventor
Rajiv Laroia
Jnyi Li
Michaela C Vanderveen
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR0000966A publication Critical patent/BR0000966A/pt

Links

Classifications

    • 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
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • 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
    • H04L5/026—Multiplexing of multicarrier modulation signals using code division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • 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
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Optical Communication System (AREA)

Abstract

<B>SISTEMA DE ACESSO MúLTIPLO DE ESPECTRO DIFUSO BASEADO EM MULTIPLEXAçãO DE DIVISãO DE FREQuêNCIA ORTOGONAL USANDO ANTENA DIRECIONAL<D> Uma estação de base dentro de uma célula de um sistema de acesso múltiplo de espectro difuso baseado em multiplexação de divisão de freq³ência ortogonal (OFDM) emprega a setorização como uma forma de reduzir a interferência entre células. A célula é setorizada do ponto de vista de transmissão pela direcionalidade da antena de ligação descendente, e o conjunto de tons de OFDM empregado em cada célula é correspondentemente setorizado, isto é, a cada setor na célula é alocado um conjunto de tons dentro de uma sub-banda da largura de banda de freq³ência disponível para uso ao transmitir para aquele setor. As sub-bandas atribuídas a cada setor são mudadas periodicamente, ou "variadas", dentre as sub-bandas disponíveis dentro da largura de banda totalmente disponível. Tal variação de sub-banda é uma variação normalmente chamada de "lenta", pelo fato de que a mesma não é realizada em uma base de símbolo por símbolo, mas em vez disso ocorre apenas após mais do que um símbolo ter sido transmitido em um setor em tons dentro da sub-banda. Cada setor emprega seu próprio sinal piloto, ao qual é atribuído um ou mais tons dentro da sub-banda atualmente empregada por aquele setor. Similarmente, para a ligação ascendente, a estação de base pode empregar uma antena receptora direcional. Preferivelmente, o terminal móvel transmite apenas em um tom que está dentro de uma sub-banda, alocada ao setor no qual está localizado o terminal móvel. Essa sub-banda, contudo, não precisa corresponder ao mesmo local, dentro da largura de banda, que a sub-banda usada pela ligação descendente para comunicação com o terminal móvel.
BR0000966-0A 1999-03-11 2000-02-28 Sistema de acesso múltiplo de espectro difuso baseado em multiplexação de divisão de frequência ortogonal usando antena direcional BR0000966A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26637199A 1999-03-11 1999-03-11

Publications (1)

Publication Number Publication Date
BR0000966A true BR0000966A (pt) 2000-12-05

Family

ID=23014295

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0000966-0A BR0000966A (pt) 1999-03-11 2000-02-28 Sistema de acesso múltiplo de espectro difuso baseado em multiplexação de divisão de frequência ortogonal usando antena direcional

Country Status (10)

Country Link
EP (1) EP1043861B1 (pt)
JP (1) JP2000286822A (pt)
KR (1) KR100341047B1 (pt)
CN (1) CN1267153A (pt)
AT (1) ATE218779T1 (pt)
AU (1) AU760505B2 (pt)
BR (1) BR0000966A (pt)
CA (1) CA2299568A1 (pt)
DE (1) DE60000193T2 (pt)
ES (1) ES2179003T3 (pt)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553019B1 (en) * 1999-12-23 2003-04-22 Flarion Technologies, Inc. Communications system employing orthogonal frequency division multiplexing based spread sprectrum multiple access
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US6940827B2 (en) * 2001-03-09 2005-09-06 Adaptix, Inc. Communication system using OFDM for one direction and DSSS for another direction
KR100781969B1 (ko) * 2001-03-26 2007-12-06 삼성전자주식회사 직교 주파수 분할 다중 접속에 기반한 데이타 통신 장치및 방법
US7388845B2 (en) 2002-08-26 2008-06-17 Qualcomm Incorporated Multiple access wireless communications system using a multisector configuration
US7366200B2 (en) 2002-08-26 2008-04-29 Qualcomm Incorporated Beacon signaling in a wireless system
US6985498B2 (en) 2002-08-26 2006-01-10 Flarion Technologies, Inc. Beacon signaling in a wireless system
US7133354B2 (en) * 2002-08-26 2006-11-07 Qualcomm Incorporated Synchronization techniques for a wireless system
US7317680B2 (en) * 2002-10-01 2008-01-08 Nortel Networks Limited Channel mapping for OFDM
US7042857B2 (en) 2002-10-29 2006-05-09 Qualcom, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US20040097238A1 (en) * 2002-11-07 2004-05-20 Samsung Electronics Co., Ltd. Frequency reuse method in an orthogonal frequency division multiplex mobile communication system
EP1579614B1 (en) 2002-12-24 2009-04-01 Electronics and Telecommunications Research Institute Frequency hopping method in orthogonal frequency division multiplexing system
EP1605619A4 (en) * 2003-02-28 2012-01-11 Ntt Docomo Inc RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD
CN1297089C (zh) * 2003-03-14 2007-01-24 北京泰美世纪科技有限公司 基于ofdm的广播***中频率跳变的连续导频的数据传输方法
JP3860556B2 (ja) * 2003-04-04 2006-12-20 松下電器産業株式会社 基地局装置及び通信方法
US7177297B2 (en) 2003-05-12 2007-02-13 Qualcomm Incorporated Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
KR20050000709A (ko) * 2003-06-24 2005-01-06 삼성전자주식회사 다중 접속 방식을 사용하는 통신 시스템의 데이터 송수신장치 및 방법
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
US7609786B2 (en) * 2004-01-28 2009-10-27 Qualcomm Incorporated Channel estimation for a communication system using spectral estimation
US8611283B2 (en) 2004-01-28 2013-12-17 Qualcomm Incorporated Method and apparatus of using a single channel to provide acknowledgement and assignment messages
WO2005088882A1 (en) 2004-03-15 2005-09-22 Nortel Netowrks Limited Pilot design for ofdm systems with four transmit antennas
US9450664B2 (en) 2004-04-02 2016-09-20 Apple Inc. Space-time transmit diversity systems and methods for ofdm applications
KR101067772B1 (ko) * 2004-04-22 2011-09-28 엘지전자 주식회사 직교 주파수 분할 다중화 방식에 적용되는 부반송파 할당방법
CN100421364C (zh) * 2004-04-30 2008-09-24 华为技术有限公司 分配物理层资源的方法及收发数据流的装置
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US8014781B2 (en) * 2004-06-08 2011-09-06 Qualcomm Incorporated Intra-cell common reuse for a wireless communications system
US7724777B2 (en) * 2004-06-18 2010-05-25 Qualcomm Incorporated Quasi-orthogonal multiplexing for a multi-carrier communication system
US8116262B2 (en) 2004-06-22 2012-02-14 Rockstar Bidco Lp Methods and systems for enabling feedback in wireless communication networks
US8014377B2 (en) 2004-06-24 2011-09-06 Nortel Networks Limited Efficient location updates, paging and short bursts
WO2006000091A1 (en) 2004-06-24 2006-01-05 Nortel Networks Limited Preambles in ofdma system
WO2006002550A1 (en) 2004-07-07 2006-01-12 Nortel Networks Limited System and method for mapping symbols for mimo transmission
US8891349B2 (en) 2004-07-23 2014-11-18 Qualcomm Incorporated Method of optimizing portions of a frame
US7715845B2 (en) * 2004-10-14 2010-05-11 Qualcomm Incorporated Tone hopping methods and apparatus
US7379446B2 (en) 2004-10-14 2008-05-27 Qualcomm Incorporated Enhanced beacon signaling method and apparatus
CN101091408B (zh) 2004-10-15 2013-01-30 北电网络有限公司 通信资源分配***和方法
EP2988563B1 (en) 2004-10-15 2020-05-20 Apple Inc. Method and basis station for communication resource allocation
KR100709691B1 (ko) * 2004-12-08 2007-04-19 한국전자통신연구원 송신기 및 송신기의 주파수 도약 방법
US8238923B2 (en) 2004-12-22 2012-08-07 Qualcomm Incorporated Method of using shared resources in a communication system
US8831115B2 (en) 2004-12-22 2014-09-09 Qualcomm Incorporated MC-CDMA multiplexing in an orthogonal uplink
US7768979B2 (en) * 2005-05-18 2010-08-03 Qualcomm Incorporated Separating pilot signatures in a frequency hopping OFDM system by selecting pilot symbols at least hop away from an edge of a hop region
KR100696947B1 (ko) * 2005-06-24 2007-03-20 전자부품연구원 Ｏｆｄｍａ 상향 링크 시스템에서 다중접속 간섭의 저감방법
CN1960557B (zh) * 2005-11-03 2010-11-10 上海原动力通信科技有限公司 一种降低正交频分复用***小区间干扰的方法
US8223817B2 (en) * 2005-12-29 2012-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for frequency hopping in wireless communication systems with carriers of varying bandwidth
KR101285014B1 (ko) 2006-03-14 2013-07-10 삼성전자주식회사 무선 통신 시스템에서 자원 할당 및 통신을 위한 장치 및방법과 그 시스템
CN101039500B (zh) * 2006-03-17 2011-09-28 华为技术有限公司 基于正交频分复用的小区用户通信方法及其***
CN101043494A (zh) * 2006-03-21 2007-09-26 华为技术有限公司 一种多小区/扇区广播信息发射方法及***
US8351405B2 (en) 2006-07-14 2013-01-08 Qualcomm Incorporated Method and apparatus for signaling beacons in a communication system
US8369424B2 (en) 2006-07-14 2013-02-05 Qualcomm Incorporated Frequency selective and frequency diversity transmissions in a wireless communication system
US7649951B2 (en) * 2006-08-16 2010-01-19 Harris Corporation System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with applied frequency domain spreading
KR101023833B1 (ko) 2006-08-31 2011-03-22 아주대학교산학협력단 통신 시스템에서 자원 이용 시스템 및 방법
WO2008041281A1 (fr) 2006-09-29 2008-04-10 Fujitsu Limited Dispositif de station de base et procédé de configuration de cellules
CN101548571B (zh) 2006-12-08 2012-04-11 富士通株式会社 相邻扇区间干扰降低方法及基站装置
EP1944875B1 (en) 2007-01-09 2018-11-14 Samsung Electronics Co., Ltd. Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
KR20080065518A (ko) * 2007-01-09 2008-07-14 삼성전자주식회사 단일 캐리어 주파수 분할 다중 접속 방식시스템에서 주파수호핑 방법 및 장치
US8345620B2 (en) * 2007-02-08 2013-01-01 Qualcomm Incorporated Method and apparatus for frequency hopping with frequency fraction reuse
JP2010529419A (ja) 2007-05-01 2010-08-26 クゥアルコム・インコーポレイテッド ワイヤレス通信システムの位置特定
US8514988B2 (en) * 2007-05-18 2013-08-20 Qualcomm Incorporated Enhanced pilot signal receiver
US8412227B2 (en) 2007-05-18 2013-04-02 Qualcomm Incorporated Positioning using enhanced pilot signal
JP4848381B2 (ja) * 2008-01-16 2011-12-28 Ｋｄｄｉ株式会社 無線リソース割当装置、無線リソース割当方法及びコンピュータプログラム
US8379688B2 (en) 2008-02-04 2013-02-19 Intel Corporation Method and apparatus adapted for localized hopping OFDMA and power efficient OFDMA multiplexing
WO2011074747A1 (en) * 2009-12-18 2011-06-23 Lg Electronics Inc. Method for partitioning cell identities according to cell type in wireless communication system and an apparatus therefor
KR101753584B1 (ko) * 2009-12-18 2017-07-04 엘지전자 주식회사 무선 통신 시스템에서 셀 타입에 따라 셀 식별자들을 구획화하는 방법 및 이를 위한 장치
WO2011074748A1 (en) 2009-12-18 2011-06-23 Lg Electronics Inc. Method for partitioning cell identities according to cell type in wireless communication system and an apparatus therefor
CN107710655B (zh) * 2015-08-07 2019-06-28 三菱电机株式会社 发送装置、接收装置、发送方法以及接收方法
US10110405B2 (en) * 2015-11-05 2018-10-23 Qualcomm Incorporated System and method for narrowband uplink single tone transmissions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410538A (en) * 1993-11-09 1995-04-25 At&T Corp. Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system
JP3282518B2 (ja) * 1996-09-25 2002-05-13 ケイディーディーアイ株式会社 スペクトラム拡散通信方式
US5867478A (en) * 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device

Also Published As

Publication number Publication date
JP2000286822A (ja) 2000-10-13
DE60000193D1 (de) 2002-07-11
KR100341047B1 (ko) 2002-06-20
CN1267153A (zh) 2000-09-20
EP1043861A1 (en) 2000-10-11
AU760505B2 (en) 2003-05-15
EP1043861B1 (en) 2002-06-05
KR20000076820A (ko) 2000-12-26
AU2063600A (en) 2000-09-14
ES2179003T3 (es) 2003-01-16
ATE218779T1 (de) 2002-06-15
CA2299568A1 (en) 2000-09-11
DE60000193T2 (de) 2002-12-12

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

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B15K Others concerning applications: alteration of classification

Ipc: H04L 5/02 (2006.01)