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CN115299013A - A channel tracking method and related equipment - Google Patents

A channel tracking method and related equipment Download PDF

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Publication number
CN115299013A
CN115299013A CN202080098888.0A CN202080098888A CN115299013A CN 115299013 A CN115299013 A CN 115299013A CN 202080098888 A CN202080098888 A CN 202080098888A CN 115299013 A CN115299013 A CN 115299013A
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China
Prior art keywords
receiver
tracking
coefficient
dfe
dfe coefficient
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CN202080098888.0A
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Chinese (zh)
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CN115299013B (en
Inventor
王金山
柳剑飞
赵砚博
孙艳宾
方李明
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

本申请实施例提供了一种信道跟踪方法及相关设备，用于通信技术领域。该方法包括：接收机接收发射机发送的至少两个跟踪信号，其中，所述跟踪信号用于所述接收机调整判决反馈均衡器DFE系数；所述接收机根据所述至少两个跟踪信号获得第一DFE系数和第二DFE系数；所述接收机根据所述第一DFE系数和所述第二DFE系数，指示所述发射机调整所述跟踪信号的发送频率；接收机根据相邻时刻DFE系数的变化量来改变跟踪信号的发送频率，当信道不稳定时，可以加快跟踪信号的发送频率，进而影响DFE系数的更新速度，这样能够使得接收机更准确的还原接收到的信号，保证系统稳定不断链。

Figure 202080098888

Embodiments of the present application provide a channel tracking method and related equipment, which are used in the field of communication technologies. The method includes: a receiver receives at least two tracking signals sent by a transmitter, wherein the tracking signals are used by the receiver to adjust a DFE coefficient of a decision feedback equalizer; and the receiver obtains according to the at least two tracking signals the first DFE coefficient and the second DFE coefficient; the receiver instructs the transmitter to adjust the transmission frequency of the tracking signal according to the first DFE coefficient and the second DFE coefficient; the receiver according to the adjacent time DFE The change of the coefficient can change the transmission frequency of the tracking signal. When the channel is unstable, the transmission frequency of the tracking signal can be accelerated, which in turn affects the update speed of the DFE coefficient. This enables the receiver to restore the received signal more accurately and ensures the system Stable and continuous chain.

Figure 202080098888

Description

PCT国内申请，说明书已公开。PCT domestic application, specification has been published.

Claims (27)

PCT国内申请，权利要求书已公开。PCT domestic application, the claims have been published.
CN202080098888.0A 2020-03-26 2020-03-26 A channel tracking method and related equipment Active CN115299013B (en)

Applications Claiming Priority (1)

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PCT/CN2020/081434 WO2021189360A1 (en) 2020-03-26 2020-03-26 Channel tracking method and related device therefor

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CN115299013A true CN115299013A (en) 2022-11-04
CN115299013B CN115299013B (en) 2024-02-09

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WO (1) WO2021189360A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116470956A (en) * 2023-06-19 2023-07-21 成都川美新技术股份有限公司 Channel tracking method and system for backtracking time-frequency signal in non-guiding mode

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US6240133B1 (en) * 1998-02-05 2001-05-29 Texas Instruments Incorporated High stability fast tracking adaptive equalizer for use with time varying communication channels
CN1389056A (en) * 2000-06-12 2003-01-01 皇家菲利浦电子有限公司 Channel equalizer
CN1832462A (en) * 2005-03-11 2006-09-13 中国科学技术大学 An Adaptive Equalization Method for Multiple-Input and Multiple-Output Communication System
CN102656474A (en) * 2010-03-08 2012-09-05 英派尔科技开发有限公司 Broadband passive tracking for augmented reality
US20140086300A1 (en) * 2012-09-27 2014-03-27 L-3 Communications Corp. Interference channel equalizer
CN103701728A (en) * 2013-12-03 2014-04-02 浙江大学 Passive time-reversal underwater acoustic communication method based on indirect channel function tracking
US20160315640A1 (en) * 2015-04-27 2016-10-27 Qualcomm Incorporated Skip rx during sbs transmission

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US5703904A (en) * 1995-12-29 1997-12-30 Globespan Technologies, Inc. Impulse noise effect reduction
AU2003296210A1 (en) * 2003-12-26 2005-07-21 Zte Corporation Uplink burst equalizing method in broad wide access system
US9479365B2 (en) * 2014-08-28 2016-10-25 Mediatek Inc. Method for performing loop unrolled decision feedback equalization in an electronic device with aid of voltage feedforward, and associated apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240133B1 (en) * 1998-02-05 2001-05-29 Texas Instruments Incorporated High stability fast tracking adaptive equalizer for use with time varying communication channels
CN1389056A (en) * 2000-06-12 2003-01-01 皇家菲利浦电子有限公司 Channel equalizer
CN1832462A (en) * 2005-03-11 2006-09-13 中国科学技术大学 An Adaptive Equalization Method for Multiple-Input and Multiple-Output Communication System
CN102656474A (en) * 2010-03-08 2012-09-05 英派尔科技开发有限公司 Broadband passive tracking for augmented reality
US20140086300A1 (en) * 2012-09-27 2014-03-27 L-3 Communications Corp. Interference channel equalizer
CN103701728A (en) * 2013-12-03 2014-04-02 浙江大学 Passive time-reversal underwater acoustic communication method based on indirect channel function tracking
US20160315640A1 (en) * 2015-04-27 2016-10-27 Qualcomm Incorporated Skip rx during sbs transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116470956A (en) * 2023-06-19 2023-07-21 成都川美新技术股份有限公司 Channel tracking method and system for backtracking time-frequency signal in non-guiding mode
CN116470956B (en) * 2023-06-19 2023-10-13 成都川美新技术股份有限公司 Channel tracking method and system for backtracking time-frequency signal in non-guiding mode

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CN115299013B (en) 2024-02-09

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