WO2017030499A3 - Method and device for reducing adjacent channel interference in wlan system - Google Patents

Method and device for reducing adjacent channel interference in wlan system Download PDF

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Publication number
WO2017030499A3
WO2017030499A3 PCT/SG2016/050373 SG2016050373W WO2017030499A3 WO 2017030499 A3 WO2017030499 A3 WO 2017030499A3 SG 2016050373 W SG2016050373 W SG 2016050373W WO 2017030499 A3 WO2017030499 A3 WO 2017030499A3
Authority
WO
WIPO (PCT)
Prior art keywords
ofdm receiver
adjacent channel
channel interference
fft
signal
Prior art date
Application number
PCT/SG2016/050373
Other languages
French (fr)
Other versions
WO2017030499A2 (en
Inventor
Ju Yan Pan
Tingwu Wang
Zhan Yu
Qian Yu
Bani LI
Changqing Xu
Yonggang Tian
Original Assignee
Huawei International Pte. 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 Huawei International Pte. Ltd. filed Critical Huawei International Pte. Ltd.
Priority to CN201680003040.9A priority Critical patent/CN107005259B/en
Publication of WO2017030499A2 publication Critical patent/WO2017030499A2/en
Publication of WO2017030499A3 publication Critical patent/WO2017030499A3/en

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Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)

Abstract

Embodiments of the invention provide method and system for reducing ACI in an OFDM receiver. The method comprises: determining a final signal bandwidth according to a signal decoded from a preamble of a frame received by the OFDM receiver; based on the final signal bandwidth, selecting a Finite Impulse Response Low Pass Filter (FIR LPF) from a plurality of available FIR LPFs to remove adjacent channel interference from a signal output from an analog-to-digital converter (ADC), and determining a number count of Fast Fourier Transform (FFT) points for a FFT algorithm to be used for performing FFT on a signal of remaining portion of the frame to be received by the OFDM receiver.
PCT/SG2016/050373 2015-08-19 2016-08-01 Method and device for reducing adjacent channel interference in wlan system WO2017030499A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680003040.9A CN107005259B (en) 2015-08-19 2016-08-01 The method and apparatus for reducing the adjacent-channel interference in wlan system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10201506538R 2015-08-19
SG10201506538RA SG10201506538RA (en) 2015-08-19 2015-08-19 Method and device for reducing adjacent channel interference in wlan system

Publications (2)

Publication Number Publication Date
WO2017030499A2 WO2017030499A2 (en) 2017-02-23
WO2017030499A3 true WO2017030499A3 (en) 2017-05-04

Family

ID=58051382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2016/050373 WO2017030499A2 (en) 2015-08-19 2016-08-01 Method and device for reducing adjacent channel interference in wlan system

Country Status (3)

Country Link
CN (1) CN107005259B (en)
SG (1) SG10201506538RA (en)
WO (1) WO2017030499A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040001427A1 (en) * 2002-06-27 2004-01-01 Belotserkovsky Maxim B. Method and apparatus for adjacent channel interference reduction in an orthogonal frequency division multiplexing (OFDM) receiver
KR20050026193A (en) * 2003-09-09 2005-03-15 삼성전자주식회사 Apparatus for fft and ifft in communication system using orthogonal frequency division multiplexing and method thereof
US20090285314A1 (en) * 2008-05-14 2009-11-19 Newport Media, Inc. Adaptive frequency domain equalization in ofdm based communication system
US20100008217A1 (en) * 2008-07-14 2010-01-14 Motorola, Inc. Method and system for detecting adjacent channel interference from ofdm/ofdma based broadband wireless access
CN101741778A (en) * 2008-11-11 2010-06-16 中兴通讯股份有限公司 Information channel estimation method of data subcarrier
CA2921750A1 (en) * 2013-08-22 2015-02-26 Thomson Licensing Low adjacent channel interference mode for a digital television system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8938041B2 (en) * 2012-12-18 2015-01-20 Intel Corporation Techniques for managing interference in multiple channel communications system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040001427A1 (en) * 2002-06-27 2004-01-01 Belotserkovsky Maxim B. Method and apparatus for adjacent channel interference reduction in an orthogonal frequency division multiplexing (OFDM) receiver
KR20050026193A (en) * 2003-09-09 2005-03-15 삼성전자주식회사 Apparatus for fft and ifft in communication system using orthogonal frequency division multiplexing and method thereof
US20090285314A1 (en) * 2008-05-14 2009-11-19 Newport Media, Inc. Adaptive frequency domain equalization in ofdm based communication system
US20100008217A1 (en) * 2008-07-14 2010-01-14 Motorola, Inc. Method and system for detecting adjacent channel interference from ofdm/ofdma based broadband wireless access
CN101741778A (en) * 2008-11-11 2010-06-16 中兴通讯股份有限公司 Information channel estimation method of data subcarrier
CA2921750A1 (en) * 2013-08-22 2015-02-26 Thomson Licensing Low adjacent channel interference mode for a digital television system

Also Published As

Publication number Publication date
SG10201506538RA (en) 2017-03-30
CN107005259A (en) 2017-08-01
CN107005259B (en) 2019-05-28
WO2017030499A2 (en) 2017-02-23

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