WO2017097269A1 - Procédé et dispositif d'estimation d'interférence - Google Patents

Procédé et dispositif d'estimation d'interférence Download PDF

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Publication number
WO2017097269A1
WO2017097269A1 PCT/CN2017/070900 CN2017070900W WO2017097269A1 WO 2017097269 A1 WO2017097269 A1 WO 2017097269A1 CN 2017070900 W CN2017070900 W CN 2017070900W WO 2017097269 A1 WO2017097269 A1 WO 2017097269A1
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WO
WIPO (PCT)
Prior art keywords
interference
data stream
covariance matrix
dmrs
channel
Prior art date
Application number
PCT/CN2017/070900
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English (en)
Chinese (zh)
Inventor
宋扬
苏昕
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电信科学技术研究院
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Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2017097269A1 publication Critical patent/WO2017097269A1/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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
    • 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
    • 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
    • H04L25/021—Estimation of channel covariance

Definitions

  • the terminal estimates the channel of each interference data stream according to the DMRS configuration information of the demodulation reference signal corresponding to each interference data stream and the DMRS receiving signal on the DMRS port corresponding to each interference data stream.
  • Obtaining a channel vector corresponding to each interference data stream including:
  • S m represents a set of subcarriers for calculating channel vector power in the first resource
  • S q represents a set of OFDM symbols used to calculate channel vector power in the first resource
  • is included in the set S m
  • is the number of elements contained in the set S q
  • is the norm of the vector, Representing a channel vector of the kth interference data stream on RE(m, q) of all receiving antennas of the terminal, RE(m, q) indicating that the RE is located in the mth subcarrier, the qth in the first resource OFDM symbols.
  • a first interference covariance matrix of the nth interference data stream in the N channel interference data stream in the second resource is a conjugate rotation of the vector Set.
  • S 'm represents a first set of interference covariance subcarrier covariance matrix for calculating said second resource
  • S' q represents a first set of OFDM symbol interference covariance matrix for calculating said second resource
  • is the number of elements included in the set S' m
  • is the number of elements included in the set S' q
  • the terminal before determining, by the second interference covariance matrix, the first interference and noise covariance matrix, the terminal further includes:
  • the terminal estimates a total power of the neighboring interference signal and the noise signal in the second resource, and determines a covariance matrix corresponding to the neighboring area interference signal and the noise signal according to the total power; and the neighboring area interference and The covariance matrix corresponding to the noise is determined as the second interference and noise covariance matrix;
  • is the number of elements included in the set S' m
  • is the number of elements included in the set S' q , Representing a channel vector of the nth interference data stream on RE(m, q) of all receiving antennas of the terminal, RE(m,q) indicating that the RE is located in the mth subcarrier, the qth in the second resource OFDM symbols.
  • the accuracy of the interference covariance matrix is determined according to the channel of the N-channel interference signal with the largest power. The degree is higher. Therefore, the solution of the embodiment of the present application can improve the accuracy of the interference estimation and enhance the detection performance of the IRC receiver, and is particularly suitable for the MU-MIMO system using a large-scale antenna.
  • the terminal determining, in the S23, the first interference and the noise covariance matrix according to the second interference covariance matrix, comprising: the terminal, the second interference covariance matrix and the second interference and noise covariance matrix The sum is determined as the first interference and noise covariance matrix.
  • a terminal is provided in the embodiment of the present application.
  • the principle of the terminal is similar to the embodiment of the interference estimation method shown in FIG. 2, and the implementation of the terminal can be implemented by referring to the method. It will not be repeated here.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

L'invention concerne un procédé et un dispositif d'estimation d'interférence, permettant de résoudre le problème du manque de précision des procédés d'estimation de matrice de covariance d'interférence existants. Le procédé comprend les étapes suivantes : un terminal, à partir d'informations de configuration de DMRS correspondant à chaque flux de données d'interférence et d'un signal de réception de DMRS présent sur un port de DMRS correspondant à chaque flux de données d'interférence, effectue respectivement une estimation sur un canal de chaque flux de données d'interférence et obtient un vecteur de canal correspondant à chaque flux de données d'interférence ; le terminal, à partir des vecteurs de canal correspondant aux flux de données d'interférence, détermine N flux de données d'interférence ayant la puissance moyenne la plus élevée dans une première ressource, en fonction des vecteurs de canal correspondant respectivement aux N flux de données d'interférence, détermine des premières matrices de covariance d'interférence correspondant respectivement aux N flux de données d'interférence dans une deuxième ressource, et détermine la somme des premières matrices de covariance d'interférence comme deuxième matrice de covariance d'interférence ; le terminal, au moyen de la deuxième matrice de covariance d'interférence, détermine une première matrice de covariance d'interférence et de bruit.
PCT/CN2017/070900 2015-12-09 2017-01-11 Procédé et dispositif d'estimation d'interférence WO2017097269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510908257.1 2015-12-09
CN201510908257.1A CN106856461B (zh) 2015-12-09 2015-12-09 一种干扰估计方法和设备

Publications (1)

Publication Number Publication Date
WO2017097269A1 true WO2017097269A1 (fr) 2017-06-15

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CN (1) CN106856461B (fr)
WO (1) WO2017097269A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391571A (zh) * 2017-08-11 2019-02-26 华为技术有限公司 相位噪声估计方法及设备
CN112217751A (zh) * 2020-10-14 2021-01-12 上海微波技术研究所（中国电子科技集团公司第五十研究所） 5g抗干扰信道估计方法及系统
CN113347702A (zh) * 2020-02-18 2021-09-03 上海华为技术有限公司 干扰源定位方法以及相关设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114696928A (zh) * 2017-09-29 2022-07-01 大唐移动通信设备有限公司 一种干扰测量方法、用户终端和网络侧设备
CN110830395B (zh) * 2018-08-14 2022-06-28 上海诺基亚贝尔股份有限公司 通信系统中用于数据检测的方法、装置和计算机存储介质
CN111741482B (zh) * 2019-03-25 2024-04-12 华为技术有限公司 一种确定和获得下行干扰的方法、终端设备及网络设备
CN115334578B (zh) * 2022-10-14 2023-01-24 中兴通讯股份有限公司 终端干扰测量方法、系统、电子设备及可读存储介质

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CN101753176A (zh) * 2009-12-24 2010-06-23 北京北方烽火科技有限公司 一种干扰抑制合并方法及系统
WO2014115374A1 (fr) * 2013-01-25 2014-07-31 株式会社エヌ・ティ・ティ・ドコモ Terminal de communication mobile
CN104601311A (zh) * 2015-01-04 2015-05-06 华为技术有限公司 一种同频干扰的抑制方法及装置
US20150156724A1 (en) * 2013-12-04 2015-06-04 Intel IP Corporation Method and Device for Detecting Interference Scenario
CN105122671A (zh) * 2013-01-25 2015-12-02 株式会社Ntt都科摩 移动通信终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753176A (zh) * 2009-12-24 2010-06-23 北京北方烽火科技有限公司 一种干扰抑制合并方法及系统
WO2014115374A1 (fr) * 2013-01-25 2014-07-31 株式会社エヌ・ティ・ティ・ドコモ Terminal de communication mobile
CN105122671A (zh) * 2013-01-25 2015-12-02 株式会社Ntt都科摩 移动通信终端
US20150156724A1 (en) * 2013-12-04 2015-06-04 Intel IP Corporation Method and Device for Detecting Interference Scenario
CN104601311A (zh) * 2015-01-04 2015-05-06 华为技术有限公司 一种同频干扰的抑制方法及装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391571A (zh) * 2017-08-11 2019-02-26 华为技术有限公司 相位噪声估计方法及设备
CN113347702A (zh) * 2020-02-18 2021-09-03 上海华为技术有限公司 干扰源定位方法以及相关设备
CN113347702B (zh) * 2020-02-18 2023-06-27 上海华为技术有限公司 干扰源定位方法以及相关设备
CN112217751A (zh) * 2020-10-14 2021-01-12 上海微波技术研究所（中国电子科技集团公司第五十研究所） 5g抗干扰信道估计方法及系统

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CN106856461B (zh) 2020-02-07

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