CA2667187A1 - Dft spread ofdm - Google Patents

Dft spread ofdm Download PDF

Info

Publication number
CA2667187A1
CA2667187A1 CA002667187A CA2667187A CA2667187A1 CA 2667187 A1 CA2667187 A1 CA 2667187A1 CA 002667187 A CA002667187 A CA 002667187A CA 2667187 A CA2667187 A CA 2667187A CA 2667187 A1 CA2667187 A1 CA 2667187A1
Authority
CA
Canada
Prior art keywords
frequency
signal
available bandwidth
transmitter
frequency domain
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002667187A
Other languages
English (en)
French (fr)
Inventor
Pal Frenger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2667187A1 publication Critical patent/CA2667187A1/en
Abandoned legal-status Critical Current

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
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7143—Arrangements for generation of hop patterns
    • 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
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • 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, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • H04B2001/7154—Interference-related aspects with means for preventing interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
CA002667187A 2006-11-02 2007-11-02 Dft spread ofdm Abandoned CA2667187A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0602319 2006-11-02
SE0602319-6 2006-11-02
PCT/SE2007/050815 WO2008054322A2 (en) 2006-11-02 2007-11-02 Cyclically shifting a signal in frequency and time domain

Publications (1)

Publication Number Publication Date
CA2667187A1 true CA2667187A1 (en) 2008-05-08

Family

ID=39344728

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002667187A Abandoned CA2667187A1 (en) 2006-11-02 2007-11-02 Dft spread ofdm

Country Status (6)

Country Link
US (1) US7983145B2 (enExample)
EP (1) EP2078400B1 (enExample)
JP (1) JP5202535B2 (enExample)
CN (1) CN101542997B (enExample)
CA (1) CA2667187A1 (enExample)
WO (1) WO2008054322A2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093074A1 (en) 2019-12-13 2021-05-20 Zte Corporation Frequency-domain modulation scheme for low peak average power ratio

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2667187A1 (en) * 2006-11-02 2008-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Dft spread ofdm
JP5147869B2 (ja) * 2007-03-22 2013-02-20 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 通信システムにおける方法及び装置
US20090180434A1 (en) * 2008-01-16 2009-07-16 Institute For Information Industry Central control apparatus, signal transmission apparatus and signal forwarding apparatus for use in a multi-hop wireless network
EP2091194B1 (en) * 2008-02-12 2014-06-25 Telefonaktiebolaget L M Ericsson (PUBL) Single carrier frequency division multiple access technique
KR101497154B1 (ko) * 2008-06-26 2015-03-02 엘지전자 주식회사 Ｓｃ-ｆｄｍａ 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
KR101567078B1 (ko) 2008-06-26 2015-11-09 엘지전자 주식회사 다중안테나를 이용한 데이터 전송장치 및 방법
KR101507170B1 (ko) 2008-06-26 2015-03-31 엘지전자 주식회사 Ｓｃ-ｆｄｍａ 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
KR101467586B1 (ko) 2008-06-26 2014-12-02 엘지전자 주식회사 무선통신 시스템에서 전송 다이버시티를 이용한 데이터 전송장치 및 방법
KR101534349B1 (ko) * 2008-06-26 2015-07-10 엘지전자 주식회사 Ｓｔｂｃ 기법을 이용한 데이터 전송방법
CN102106180A (zh) * 2008-08-07 2011-06-22 松下电器产业株式会社 频带分配方法及发送装置
CN101777940B (zh) * 2009-01-12 2013-08-14 华为技术有限公司 上行信息的传输方法、装置及系统
EP2437401B1 (en) * 2009-05-29 2020-03-11 Sun Patent Trust Wireless communication apparatus and frequency hopping method
WO2010145532A1 (zh) * 2009-06-16 2010-12-23 华为技术有限公司 控制信道映射的方法、控制信道检测的方法和装置
CN101932140A (zh) * 2009-06-22 2010-12-29 华为技术有限公司 一种调整无线帧发送时间的方法及基站
JP5501381B2 (ja) * 2010-01-08 2014-05-21 パナソニック株式会社 無線送信装置、無線受信装置及び帯域割当方法
US8638868B2 (en) * 2010-06-23 2014-01-28 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for varying reduced transmission resources
KR101761618B1 (ko) 2010-06-25 2017-07-26 엘지전자 주식회사 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치
CN104094651B (zh) * 2011-12-02 2018-07-24 诺基亚通信公司 认知无线电网络中最小化频谱碎裂的协调频谱分配和解除分配
CN107211456A (zh) * 2015-02-10 2017-09-26 华为技术有限公司 数据发送的方法和发射机
US10958395B2 (en) 2016-12-02 2021-03-23 Wisig Networks Private Limited Method and a system for transmitting DFT-s-OFDM symbols
US10263662B2 (en) 2016-12-16 2019-04-16 Guizhou Dingtongxin Technologies Ltd. Cyclic-frequency shift orthogonal frequency division multiplex device
CN108235445B (zh) * 2016-12-21 2021-03-09 大唐移动通信设备有限公司 一种无线通信系统中检测特征序列的方法和装置
CN115086125B (zh) * 2022-08-11 2022-11-18 深圳市华普微电子有限公司 微跳频多址通讯系统的低功耗调制方法
CN117641323A (zh) * 2022-08-27 2024-03-01 华为技术有限公司 通信方法、装置、存储介质及系统
WO2024047550A1 (en) * 2022-08-31 2024-03-07 Jio Platforms Limited System and method for providing multiple bandwidth support using a frequency shifter
CN119728369A (zh) * 2023-09-27 2025-03-28 中兴通讯股份有限公司 数据传输方法、设备及存储介质

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6167102A (en) 1998-08-03 2000-12-26 Telefonaktiebolaget Lm Ericsson (Publ) System and method employing a reduced NCO lookup table
CA2390253A1 (en) * 2001-06-11 2002-12-11 Unique Broadband Systems, Inc. Ofdm multiple sub-channel communication system
CN100553180C (zh) * 2004-03-31 2009-10-21 清华大学 Tds-ofdm接收机自适应信道估计均衡方法及其系统
US7646703B2 (en) * 2004-07-27 2010-01-12 Broadcom Corporation Backward-compatible long training sequences for wireless communication networks
CN1787507B (zh) * 2004-12-10 2010-04-28 清华大学 一种时域同步正交频分复用系统中的帧同步产生方法
US8406318B2 (en) * 2006-02-13 2013-03-26 Research In Motion Limited System and method for ask OFDM transmission and reception
US7848446B2 (en) * 2006-09-27 2010-12-07 Telefonaktiebolaget L M Ericsson (Publ) Reduction of peak-to-average-power ratio in a telecommunications system
CA2667187A1 (en) * 2006-11-02 2008-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Dft spread ofdm
US20090040919A1 (en) * 2007-08-09 2009-02-12 Tarik Muharemovic Transmission Using Nested OFDMA
US7746761B2 (en) * 2007-10-25 2010-06-29 Nokia Siemens Networks Oy Techniques to generate constant envelope multicarrier transmission for wireless networks
US20100226448A1 (en) * 2009-03-05 2010-09-09 Paul Wilkinson Dent Channel extrapolation from one frequency and time to another

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093074A1 (en) 2019-12-13 2021-05-20 Zte Corporation Frequency-domain modulation scheme for low peak average power ratio
CN114747258A (zh) * 2019-12-13 2022-07-12 中兴通讯股份有限公司 低峰值平均功率比的频域调制方案
KR20220108811A (ko) * 2019-12-13 2022-08-03 지티이 코포레이션 낮은 피크 평균 전력비를 위한 주파수-도메인 변조 방식
EP4074103A4 (en) * 2019-12-13 2022-12-21 ZTE Corporation FREQUENCY DOMAIN MODULATION SCHEME FOR LOW PEAK POWER RATIO
CN114747258B (zh) * 2019-12-13 2024-12-13 中兴通讯股份有限公司 低峰值平均功率比的频域调制方案
KR102769535B1 (ko) * 2019-12-13 2025-02-17 지티이 코포레이션 낮은 피크 평균 전력비를 위한 주파수-도메인 변조 방식

Also Published As

Publication number Publication date
US7983145B2 (en) 2011-07-19
EP2078400A2 (en) 2009-07-15
EP2078400B1 (en) 2017-09-27
WO2008054322A3 (en) 2008-06-26
EP2078400A4 (en) 2014-05-21
JP2010509801A (ja) 2010-03-25
US20100111209A1 (en) 2010-05-06
CN101542997A (zh) 2009-09-23
CN101542997B (zh) 2012-08-08
WO2008054322A2 (en) 2008-05-08
JP5202535B2 (ja) 2013-06-05

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20160202