WO2013091541A1 - Methods and apparatus for noise estimation of communication terminals - Google Patents

Methods and apparatus for noise estimation of communication terminals Download PDF

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Publication number
WO2013091541A1
WO2013091541A1 PCT/CN2012/086926 CN2012086926W WO2013091541A1 WO 2013091541 A1 WO2013091541 A1 WO 2013091541A1 CN 2012086926 W CN2012086926 W CN 2012086926W WO 2013091541 A1 WO2013091541 A1 WO 2013091541A1
Authority
WO
WIPO (PCT)
Prior art keywords
subcarriers
subcarrier
pilot signals
noise
signal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2012/086926
Other languages
English (en)
French (fr)
Inventor
Xuqiang SHEN
Xiaojian Dong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spreadtrum Communications Shanghai Co Ltd
Original Assignee
Spreadtrum Communications Shanghai Co 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 Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to US14/002,120 priority Critical patent/US9071475B2/en
Priority to IN25MUN2014 priority patent/IN2014MN00025A/en
Publication of WO2013091541A1 publication Critical patent/WO2013091541A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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

Definitions

  • a communication terminal in a multicarrier communication system wherein communication in the multicarrier communication system is carried out over a plurality of subcarriers.
  • the apparatus includes a receiver receiving multicarrier symbols, the multicarrier symbols including pilot signals; an estimator coupled to receive the multicarrier symbols and to estimate channel properties based thereon, wherein the channel properties include channel properties of a subcarrier carrying one of the pilot signals; and a mixer coupled to mix the estimated channel properties of the subcarrier carrying one of the pilot signals with a corresponding pilot signal to calculate a noise power for a corresponding subcarrier.
  • not all OFDM symbols in the received data include reference symbols or pilot signals.
  • An OFDM symbol that does contain pilot signal or data or the reference symbols can be used for noise estimation.
  • One of ordinary skill in the art would appreciate that the distribution of the reference symbols described above is for illustration only and the reference symbols can have other distributions.
  • output unit 108 may also include a second signal-to-noise ratio calculator (not shown) that calculates a second signal-to-noise ratio, and a second signal-to-noise ratio outputting unit (not shown in FIG. 5) that is adapted to output the second signal-to-noise ratio.
  • the second signal-to-noise ratio is, for example, a ratio of the smoothed sum of the signal power to the smoothed sum of the noise power for the subcarriers carrying cell pilot data; or a ratio of the smoothed average of the signal power to the smoothed average of the noise power for the subcarriers carrying cell pilot data.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
PCT/CN2012/086926 2011-12-21 2012-12-19 Methods and apparatus for noise estimation of communication terminals Ceased WO2013091541A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/002,120 US9071475B2 (en) 2011-12-21 2012-12-19 Methods and apparatus for noise estimation of communication terminals
IN25MUN2014 IN2014MN00025A (https=) 2011-12-21 2012-12-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110433739.8 2011-12-21
CN201110433739.8A CN102420796B (zh) 2011-12-21 2011-12-21 通信终端及其噪声估计方法和装置

Publications (1)

Publication Number Publication Date
WO2013091541A1 true WO2013091541A1 (en) 2013-06-27

Family

ID=45945034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/086926 Ceased WO2013091541A1 (en) 2011-12-21 2012-12-19 Methods and apparatus for noise estimation of communication terminals

Country Status (5)

Country Link
US (1) US9071475B2 (https=)
EP (1) EP2608472B1 (https=)
CN (1) CN102420796B (https=)
IN (1) IN2014MN00025A (https=)
WO (1) WO2013091541A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9071475B2 (en) 2011-12-21 2015-06-30 Spreadtrum Communications (Shanghai) Co., Ltd. Methods and apparatus for noise estimation of communication terminals
US10054510B2 (en) 2015-09-11 2018-08-21 Mitsubishi Heavy Industries, Ltd. Method of calibrating load measurement apparatus, load measurement system of wind turbine blade, and wind turbine
US10400750B2 (en) 2015-09-11 2019-09-03 Mitsubishi Heavy Industries, Ltd. Wind turbine power generating apparatus and method of connecting the same

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CN104254997B (zh) * 2013-08-27 2017-06-06 华为终端有限公司 一种机器类型通信下行数据的传输方法及基站、用户设备
US9967013B2 (en) * 2014-01-29 2018-05-08 Lg Electronics Inc. Feedback reporting method for massive antenna array based beamforming in wireless communication system, and apparatus therefor
WO2015180146A1 (zh) * 2014-05-30 2015-12-03 华为技术有限公司 一种小区噪声估计方法、系统及相关设备
CN106160921B (zh) * 2015-04-01 2020-01-31 普天信息技术有限公司 实现高铁通信系统中信道状态信息的传输方法及装置
CN105897630B (zh) * 2016-04-05 2019-01-25 北京瀚诺半导体科技有限公司 一种ofdm通信系统中的脉冲噪声检测方法
CN107347194B (zh) * 2016-05-04 2020-05-08 大唐移动通信设备有限公司 一种上行底噪处理方法和系统
CN106685865B (zh) * 2017-03-09 2019-12-20 北京万瑞天融信息技术有限公司 窄带无线接收机的基带接收方法及装置
GB201800554D0 (en) * 2018-01-12 2018-02-28 Nordic Semiconductor Asa OFDM signal and noise estimation
CN108881082B (zh) * 2018-06-26 2019-09-24 中国人民解放军国防科技大学 信噪比确定方法及装置、信道均衡方法及装置
US11432189B2 (en) * 2019-05-16 2022-08-30 Marvell Asia Pte, Ltd. Methods and apparatus for distributed baseband signal processing for fifth generation (5G) new radio downlink signals
CN112491445B (zh) * 2019-09-12 2022-09-20 北京东土科技股份有限公司 一种工业控制总线信噪比计算方法
CN114449526B (zh) * 2020-11-05 2024-11-22 辰芯科技有限公司 抗干扰处理方法及接收机
CN115395971B (zh) * 2021-05-25 2023-11-24 大唐移动通信设备有限公司 干扰噪声功率的确定方法、装置、电子设备及存储介质
CN114257256B (zh) * 2021-12-15 2023-08-15 哲库科技(北京)有限公司 噪声估计方法、装置、设备和可读存储介质
CN114553645B (zh) * 2022-03-16 2023-01-24 电子科技大学 一种减小正交频分复用系统载波间干扰的方法

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US6717976B1 (en) * 1998-12-21 2004-04-06 Nortel Networks Ltd. Method and apparatus for signal to noise power ratio estimation in a multi sub-channel CDMA receiver
CN101155156A (zh) * 2006-09-25 2008-04-02 华为技术有限公司 信道估计方法与装置以及生成导频序列的方法与装置
CN101953085A (zh) * 2008-02-26 2011-01-19 交互数字技术公司 用于估计信干比的方法和设备
CN102420796A (zh) * 2011-12-21 2012-04-18 展讯通信（上海）有限公司 通信终端及其噪声估计方法和装置

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CN101496325B (zh) * 2006-07-25 2012-07-04 富士通株式会社 多载波通信系统中的干扰噪声估计方法和接收处理方法以及干扰噪声估计装置和接收机
CN100596130C (zh) * 2006-09-06 2010-03-24 华为技术有限公司 一种载波干扰噪声比的测量方法及装置
KR20080048660A (ko) * 2006-11-29 2008-06-03 삼성전자주식회사 통신 시스템에서 잡음 추정 장치 및 방법
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TW201038024A (en) * 2009-04-13 2010-10-16 Univ Nat Chiao Tung Channel estimation method of multi-carrier system
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WO2011148779A1 (ja) * 2010-05-28 2011-12-01 日本電気株式会社 受信機および信号対雑音比の推定方法

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US6717976B1 (en) * 1998-12-21 2004-04-06 Nortel Networks Ltd. Method and apparatus for signal to noise power ratio estimation in a multi sub-channel CDMA receiver
CN101155156A (zh) * 2006-09-25 2008-04-02 华为技术有限公司 信道估计方法与装置以及生成导频序列的方法与装置
CN101953085A (zh) * 2008-02-26 2011-01-19 交互数字技术公司 用于估计信干比的方法和设备
CN102420796A (zh) * 2011-12-21 2012-04-18 展讯通信（上海）有限公司 通信终端及其噪声估计方法和装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9071475B2 (en) 2011-12-21 2015-06-30 Spreadtrum Communications (Shanghai) Co., Ltd. Methods and apparatus for noise estimation of communication terminals
US10054510B2 (en) 2015-09-11 2018-08-21 Mitsubishi Heavy Industries, Ltd. Method of calibrating load measurement apparatus, load measurement system of wind turbine blade, and wind turbine
US10400750B2 (en) 2015-09-11 2019-09-03 Mitsubishi Heavy Industries, Ltd. Wind turbine power generating apparatus and method of connecting the same

Also Published As

Publication number Publication date
US20140307641A1 (en) 2014-10-16
IN2014MN00025A (https=) 2015-06-12
CN102420796A (zh) 2012-04-18
US9071475B2 (en) 2015-06-30
CN102420796B (zh) 2014-07-02
EP2608472A1 (en) 2013-06-26
EP2608472B1 (en) 2017-05-03

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