WO2016155503A1 - Système de communication sans fil, et appareil et procédé mis en œuvre dans un système de communication sans fil - Google Patents

Système de communication sans fil, et appareil et procédé mis en œuvre dans un système de communication sans fil Download PDF

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Publication number
WO2016155503A1
WO2016155503A1 PCT/CN2016/076488 CN2016076488W WO2016155503A1 WO 2016155503 A1 WO2016155503 A1 WO 2016155503A1 CN 2016076488 W CN2016076488 W CN 2016076488W WO 2016155503 A1 WO2016155503 A1 WO 2016155503A1
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WO
WIPO (PCT)
Prior art keywords
end information
filter
signal
parameter
unit
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Application number
PCT/CN2016/076488
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English (en)
Chinese (zh)
Inventor
党建
窦建青
Original Assignee
索尼公司
党建
窦建青
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Filing date
Publication date
Application filed by 索尼公司, 党建, 窦建青 filed Critical 索尼公司
Publication of WO2016155503A1 publication Critical patent/WO2016155503A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks

Definitions

  • FB Filter Bank
  • OFDM Orthogonal Frequency Division Multiplexing
  • the filter bank Similar to Orthogonal Frequency Division Multiplexing (OFDM) technology, which converts high-speed string data into low-speed parallel data, the filter bank separates the input signal stream into multiple sub-signal streams, each A subband of a single frequency carries a sub-signal stream.
  • the spectrum of each subband of the filter bank is allocated so that aliasing exists only between adjacent subbands. Due to this property, Inter-Subband Interference only comes from adjacent sub-bands, so FB is more robust than OFDM in frequency offset; in addition, FB is in narrowband interference due to allocated fixed frequency partitioning. Better robust than OFDM.
  • the mapping process is optional, and of course the input bitstream can be sent directly without mapping.
  • the equalization processing unit 602 can be configured to use the time domain equalizer to equalize the input signal prior to processing by the filter processing unit such that the combined effect of the actual physical channel and the time domain equalizer is only the delay of the signal.
  • the receiving apparatus 800 may include a filter parameter setting unit 802, a parameter notifying unit 804, a filter processing unit 806, a front end information removing unit 808, an interference removing unit 810, and a channel estimating unit. 812 and mode notification unit 814.
  • the functional configuration example of the filter parameter setting unit 802, the parameter notification unit 804, the filter processing unit 806, the front end information removing unit 808, and the interference removing unit 810 is the same as the functional configuration example of the corresponding unit shown in FIG. 7 above. The description will not be repeated here. Only a functional configuration example of the channel estimation unit 812 and the mode notification unit 814 will be described in detail below.
  • the receiving device may not need to perform the allocation operation, and it is also unnecessary to transmit the allocation information to the transmitting device.
  • the processing in the other steps is substantially the same as the example shown in FIG. 13, and the details thereof will not be repeatedly described herein.
  • 20A and 20B respectively show a spectrogram of a synthesis filter bank and a corresponding system bit error rate graph in a third example scenario to which the technology of the present disclosure is applied.
  • Fig. 20A shows a spectrogram of the non-uniformly designed integrated filter bank in the third example scenario
  • Fig. 20B shows the corresponding bit error rate curve of the system. As can be seen from these figures, the system still has good performance in the case of non-uniform spectrum division.
  • the parameter of h p2 (n) is [-0.0000 0.0000 0.0002 0.0007 0.0019 0.0041 0.0078 0.0133 0.0211 0.0309 0.0425 0.0550 0.0674 0.0782 0.0863 0.0907 0.0907 0.0863 0.0782 0.0674 0.0550 0.0425 0.0309 0.0211 0.0133 0.0078 0.0041 0.0007

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système de communication sans fil, et un appareil et un procédé mis en œuvre dans le système de communication sans fil. Un appareil d'extrémité de réception dans un système de communication sans fil comprend : une unité de traitement de filtrage conçue pour réaliser un traitement de filtrage, au moyen d'un groupe de filtres d'analyse, de signaux d'entrée issus d'une extrémité d'émission, de manière à obtenir des signaux de sous-bande multicanaux porteurs d'informations d'extrémité frontale; une unité d'élimination d'informations d'extrémité frontale conçue pour éliminer des informations d'extrémité frontale contenues dans les signaux de sous-bande multicanaux; et une unité d'annulation d'interférence conçue pour annuler une interférence inter-bande par mise en œuvre d'un traitement succédant à la combinaison de signaux de domaine de fréquence des signaux de sous-bande multicanaux dont les informations d'extrémités frontale ont été éliminées. Selon des modes de réalisation de la présente invention, dans un système dans lequel un groupe de filtrage utilise une conception de reconstruction non parfaite, une détection de signal peut être réalisée à l'aide d'une simple conception d'extrémité de réception, ce qui permet d'améliorer la flexibilité de la conception du système et d'optimiser les performances du système.
PCT/CN2016/076488 2015-03-30 2016-03-16 Système de communication sans fil, et appareil et procédé mis en œuvre dans un système de communication sans fil WO2016155503A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510145261.7 2015-03-30
CN201510145261.7A CN106161301A (zh) 2015-03-30 2015-03-30 无线通信系统以及无线通信系统中的装置和方法

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WO2016155503A1 true WO2016155503A1 (fr) 2016-10-06

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WO2019157892A1 (fr) * 2018-02-13 2019-08-22 华为技术有限公司 Procédé, appareil et dispositif de réception de signaux

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CN117148288B (zh) * 2023-10-27 2024-01-09 南京航天工业科技有限公司 一种基于频率保护的雷达干扰方法及系统

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EP0987829A2 (fr) * 1998-09-14 2000-03-22 Terayon Communication Systems, Inc. Procédé et appareil pour l'excision d'un signal d'interférence à bande étroite d'un signal à AMRC
CN101741782A (zh) * 2009-11-24 2010-06-16 东南大学 双层多载波超宽带无线通信方法
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US20040252772A1 (en) * 2002-12-31 2004-12-16 Markku Renfors Filter bank based signal processing
CN101233506A (zh) * 2005-07-29 2008-07-30 德克萨斯仪器股份有限公司 优化过采样离散傅立叶变换滤波器组的操作的系统和方法
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EP0987829A2 (fr) * 1998-09-14 2000-03-22 Terayon Communication Systems, Inc. Procédé et appareil pour l'excision d'un signal d'interférence à bande étroite d'un signal à AMRC
CN101741782A (zh) * 2009-11-24 2010-06-16 东南大学 双层多载波超宽带无线通信方法
CN102608588A (zh) * 2012-03-14 2012-07-25 西安电子科技大学 基于子带分解的宽带子阵自适应波束形成方法

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Title
STITZ, TOBIAS HIDALGO ET AL.: "Pilot-Based Synchronization and Equalization in Filter Bank Multicarrier Communications.", EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING., NO. 2010, 21 February 2010 (2010-02-21), XP055319416 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019157892A1 (fr) * 2018-02-13 2019-08-22 华为技术有限公司 Procédé, appareil et dispositif de réception de signaux
US11337213B2 (en) 2018-02-13 2022-05-17 Huawei Technologies Co., Ltd. Signal receiving method, apparatus, and device

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