WO2007081182A1 - Procédé et appareil pour le mise en correspondance cyclique de sous-porteuses décalées - Google Patents

Procédé et appareil pour le mise en correspondance cyclique de sous-porteuses décalées Download PDF

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Publication number
WO2007081182A1
WO2007081182A1 PCT/KR2007/000238 KR2007000238W WO2007081182A1 WO 2007081182 A1 WO2007081182 A1 WO 2007081182A1 KR 2007000238 W KR2007000238 W KR 2007000238W WO 2007081182 A1 WO2007081182 A1 WO 2007081182A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
carriers
modulation symbols
transmission
mapping
Prior art date
Application number
PCT/KR2007/000238
Other languages
English (en)
Inventor
Bing Bu
Ju-Ho Lee
Xiaoqiang Li
Yujian Zhang
Original Assignee
Samsung Electronics Co., Ltd.
Beijing Samsung Telecom R & D Center
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., Beijing Samsung Telecom R & D Center filed Critical Samsung Electronics Co., Ltd.
Publication of WO2007081182A1 publication Critical patent/WO2007081182A1/fr

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Classifications

    • 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]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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

Definitions

  • Figure 4 shows that a transmitting (receiving) end sets a mapping relationship between modulation symbols and sub-carriers
  • the receiving end extracts modulation symbols orderly from corresponding sub-carrier position according to mapping relationship between modulation symbols and sub-carriers used in every receiving.
  • sub-carriers (128 sub-carriers) used when the transmission end transmits data are discretely distributed, the maximum retransmission times of HARQ is 3.
  • Sub-carrier sequence number 1-128 is the ordinal sub-carrier sequence number used by the transmitting end
  • modulation symbol sequence 1 ⁇ 128 is the ordinal modulation symbol sequence number.
  • Mapping relationship between modulation symbols and sub-carriers used in the first retransmission is gained by making cyclic shift of 40 sub-carriers downward of the mapping relationship used in the initial transmission.
  • Mapping relationship between modulation symbols and sub-carriers used in the second retransmission is gained by making cyclic shift of 30 sub-carriers downward of the mapping relationship in the first retransmission.

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  • 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)
  • Radio Transmission System (AREA)

Abstract

La présente invention concerne un procédé pour la mise en correspondance cyclique de sous-porteuses décalées dans une extrémité de transmission comprenant les étapes suivantes: la mise en correspondance d'une pluralité de bits de données d'entrée à un symbole à partir d'un ensemble de symboles de modulation et la sortie dérivée du symbole modulé; lors de la retransmission de paquets de données, l'obtention de la relation de mise en correspondance entre les symboles de modulation et les sous-porteuses utilisées dans la transmission en cours par le décalage cyclique de la relation de mise en correspondance entre les symboles de modulation et les sous-porteuses dans la dernière transmission; la modulation et l'envoi des symboles modulés sur diverses sous-porteuses. La présente invention utilise le procédé sur la mise en correspondance cyclique de sous-porteuses décalées pour entraîner la transmission des mêmes bits sur différentes sous-porteuses lors d'une transmission dans différentes transmissions du même procédé de requête de retransmission automatique hybride (HARQ), permettant ainsi l'acquisition de gain de diversité en fréquence, la réduction de taux d'échec de transmission HARQ dû à la transmission de certains bits tout le temps dans une sous-porteuse qui subit un évanouissement profond.procédé et appareil pour le mise en correspondance cyclique de sous-porteuses décalées
PCT/KR2007/000238 2006-01-13 2007-01-15 Procédé et appareil pour le mise en correspondance cyclique de sous-porteuses décalées WO2007081182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610001603.9 2006-01-13
CNA2006100016039A CN101001136A (zh) 2006-01-13 2006-01-13 循环移位的子载波映射的设备和方法

Publications (1)

Publication Number Publication Date
WO2007081182A1 true WO2007081182A1 (fr) 2007-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/000238 WO2007081182A1 (fr) 2006-01-13 2007-01-15 Procédé et appareil pour le mise en correspondance cyclique de sous-porteuses décalées

Country Status (2)

Country Link
CN (1) CN101001136A (fr)
WO (1) WO2007081182A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445033A (en) * 2006-12-19 2008-06-25 Siemens Ag HARQ for OFDM with bit or symbol rearrangement for retransmissions
WO2012100790A1 (fr) * 2011-01-28 2012-08-02 Nokia Siemens Networks Oy Appareil et procédé pour la communication
EA021145B1 (ru) * 2008-12-15 2015-04-30 Шарп Кабусики Кайся Система беспроводной связи, устройство беспроводной передачи, устройство беспроводного приема, способ беспроводной передачи и способ беспроводного приема
US10153851B2 (en) 2013-11-12 2018-12-11 Huawei Technologies Co., Ltd. Transmission method and apparatus
CN110603792A (zh) * 2017-05-23 2019-12-20 华为技术有限公司 一种数据传输方法、设备及系统
WO2023023920A1 (fr) * 2021-08-24 2023-03-02 Huawei Technologies Co., Ltd. Diversité de fréquence dans des communications à porteuse unique

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8503375B2 (en) 2007-08-13 2013-08-06 Qualcomm Incorporated Coding and multiplexing of control information in a wireless communication system
CN101635616B (zh) * 2008-07-23 2012-10-10 中兴通讯股份有限公司 一种同步混合自动重传的方法
CN101888289A (zh) * 2009-05-13 2010-11-17 中兴通讯股份有限公司 一种混合自动重传方法及装置
US9172513B2 (en) 2010-10-11 2015-10-27 Qualcomm Incorporated Resource assignments for uplink control channel
CN103780300B (zh) * 2012-10-24 2017-09-29 华为技术有限公司 信号处理方法、装置及系统
CN108011695A (zh) * 2016-10-28 2018-05-08 财团法人工业技术研究院 无线通信方法、装置与系统
CN107888535B (zh) * 2017-11-03 2019-10-11 西安电子科技大学 基于单载波频分多址系统的变换域分集方法
CN113541758B (zh) * 2021-07-13 2022-05-06 上海矽昌微电子有限公司 一种信号的循环移位处理方法及装置

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US5652772A (en) * 1993-07-20 1997-07-29 Telia Ab Method and apparatus for synchronization in digital transmisison systems of the OFDM type
KR20020086166A (ko) * 2001-05-11 2002-11-18 삼성전자 주식회사 직교주파수 분할 다중 시스템에서 채널 복호 장치 및 방법
US6687307B1 (en) * 2000-02-24 2004-02-03 Cisco Technology, Inc Low memory and low latency cyclic prefix addition
KR20040086038A (ko) * 2003-03-27 2004-10-08 주식회사 케이티프리텔 주파수 선택형 채널에서 동작하는 직교 주파수 분할다중화 기반의 무선 통신 시스템 및 그 채널 보상 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652772A (en) * 1993-07-20 1997-07-29 Telia Ab Method and apparatus for synchronization in digital transmisison systems of the OFDM type
US6687307B1 (en) * 2000-02-24 2004-02-03 Cisco Technology, Inc Low memory and low latency cyclic prefix addition
KR20020086166A (ko) * 2001-05-11 2002-11-18 삼성전자 주식회사 직교주파수 분할 다중 시스템에서 채널 복호 장치 및 방법
KR20040086038A (ko) * 2003-03-27 2004-10-08 주식회사 케이티프리텔 주파수 선택형 채널에서 동작하는 직교 주파수 분할다중화 기반의 무선 통신 시스템 및 그 채널 보상 방법

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445033A (en) * 2006-12-19 2008-06-25 Siemens Ag HARQ for OFDM with bit or symbol rearrangement for retransmissions
EA021145B1 (ru) * 2008-12-15 2015-04-30 Шарп Кабусики Кайся Система беспроводной связи, устройство беспроводной передачи, устройство беспроводного приема, способ беспроводной передачи и способ беспроводного приема
WO2012100790A1 (fr) * 2011-01-28 2012-08-02 Nokia Siemens Networks Oy Appareil et procédé pour la communication
US10153851B2 (en) 2013-11-12 2018-12-11 Huawei Technologies Co., Ltd. Transmission method and apparatus
CN110603792A (zh) * 2017-05-23 2019-12-20 华为技术有限公司 一种数据传输方法、设备及系统
US10897312B2 (en) 2017-05-23 2021-01-19 Huawei Technologies Co., Ltd. Data transmission method, device, and system
CN110603792B (zh) * 2017-05-23 2023-02-03 华为技术有限公司 一种数据传输方法、设备及系统
WO2023023920A1 (fr) * 2021-08-24 2023-03-02 Huawei Technologies Co., Ltd. Diversité de fréquence dans des communications à porteuse unique

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CN101001136A (zh) 2007-07-18

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