CN107925437A - 用于数字用户线初始化的方法和装置 - Google Patents

用于数字用户线初始化的方法和装置 Download PDF

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Publication number
CN107925437A
CN107925437A CN201580082439.6A CN201580082439A CN107925437A CN 107925437 A CN107925437 A CN 107925437A CN 201580082439 A CN201580082439 A CN 201580082439A CN 107925437 A CN107925437 A CN 107925437A
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CN
China
Prior art keywords
pilot sequence
uplink pilot
serial number
notification message
user terminal
Prior art date
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CN201580082439.6A
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English (en)
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CN107925437B (zh
Inventor
易溪林
贾鑫
周斌
王祥
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN107925437A publication Critical patent/CN107925437A/zh
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    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/487—Testing crosstalk effects
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)

Abstract

本发明实施例提供了用于数字用户线初始化的方法和装置，该方法由showtime线路的用户端收发器执行，该方法包括：接收矢量化控制实体VCE发送的第一通知消息，该第一通知消息包括第一指示信息，该第一指示信息指示至少一个第一序号，其中，新进上行导频序列中该至少一个第一序号的元素为1或‑1；根据该第一通知消息，将showtime线路的第一上行导频序列转换为第二上行导频序列；向该showtime线路的局端收发器发送该第二上行导频序列。因此，在本发明实施例中，新进线路的局端收发器检测上行导频信号时受到的串扰会减小，进而能够降低噪声，提高信噪比，进一步提高新进线路的局端收发器检测同步符号的强壮性。

Description

PCT国内申请，说明书已公开。

Claims (27)

  1. PCT国内申请，权利要求书已公开。
CN201580082439.6A 2015-11-12 2015-11-12 用于数字用户线初始化的方法和装置 Active CN107925437B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/094484 WO2017079946A1 (zh) 2015-11-12 2015-11-12 用于数字用户线初始化的方法和装置

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CN107925437A true CN107925437A (zh) 2018-04-17
CN107925437B CN107925437B (zh) 2020-07-21

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EP (1) EP3367581B1 (zh)
CN (1) CN107925437B (zh)
WO (1) WO2017079946A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112751793A (zh) * 2019-10-31 2021-05-04 诺基亚通信公司 用于不连续时频操作的直接信道表征

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110875935B (zh) * 2018-08-30 2023-03-24 阿里巴巴集团控股有限公司 消息发布、处理、订阅方法、装置及系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101453245A (zh) * 2007-11-29 2009-06-10 华为技术有限公司 一种消除数字用户线串扰的方法、设备和系统
CN103098412A (zh) * 2012-10-29 2013-05-08 华为技术有限公司 一种初始化方法、设备和系统
CN103503398A (zh) * 2011-04-27 2014-01-08 伊卡诺斯通讯公司 用于g向量初始化的系统和方法
US20140185659A1 (en) * 2012-12-28 2014-07-03 Broadcom Corporation Communication System Capable of Measuring Crosstalk in Legacy Line
US20140328442A1 (en) * 2013-05-03 2014-11-06 Futurewei Technologies, Inc. A Self-Synchronizing Probe Sequence
WO2014201662A1 (zh) * 2013-06-20 2014-12-24 华为技术有限公司 线路初始化方法、设备及系统
CN105009465A (zh) * 2013-04-12 2015-10-28 华为技术有限公司 在fext下执行上行符号定位

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101453245A (zh) * 2007-11-29 2009-06-10 华为技术有限公司 一种消除数字用户线串扰的方法、设备和系统
CN103503398A (zh) * 2011-04-27 2014-01-08 伊卡诺斯通讯公司 用于g向量初始化的系统和方法
CN103098412A (zh) * 2012-10-29 2013-05-08 华为技术有限公司 一种初始化方法、设备和系统
US20140185659A1 (en) * 2012-12-28 2014-07-03 Broadcom Corporation Communication System Capable of Measuring Crosstalk in Legacy Line
CN105009465A (zh) * 2013-04-12 2015-10-28 华为技术有限公司 在fext下执行上行符号定位
US20140328442A1 (en) * 2013-05-03 2014-11-06 Futurewei Technologies, Inc. A Self-Synchronizing Probe Sequence
WO2014201662A1 (zh) * 2013-06-20 2014-12-24 华为技术有限公司 线路初始化方法、设备及系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112751793A (zh) * 2019-10-31 2021-05-04 诺基亚通信公司 用于不连续时频操作的直接信道表征

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Publication number Publication date
CN107925437B (zh) 2020-07-21
EP3367581A4 (en) 2018-08-29
EP3367581B1 (en) 2020-01-08
WO2017079946A1 (zh) 2017-05-18
EP3367581A1 (en) 2018-08-29

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