WO2016165427A1 - Procédé et appareil d'identification de brouillage - Google Patents

Procédé et appareil d'identification de brouillage Download PDF

Info

Publication number
WO2016165427A1
WO2016165427A1 PCT/CN2016/070727 CN2016070727W WO2016165427A1 WO 2016165427 A1 WO2016165427 A1 WO 2016165427A1 CN 2016070727 W CN2016070727 W CN 2016070727W WO 2016165427 A1 WO2016165427 A1 WO 2016165427A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
interference
user
baseband
frequency domain
Prior art date
Application number
PCT/CN2016/070727
Other languages
English (en)
Chinese (zh)
Inventor
张玉杰
张万帅
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016165427A1 publication Critical patent/WO2016165427A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to an interference recognition method and apparatus.
  • the signals transmitted between the base station and the terminal are subject to various interferences and noises in the actual environment, and the identification of these interferences and noises is a necessary precondition for interference processing, especially the identification of interference at the receiving end. Many times, it directly affects whether user data can be correctly decoded.
  • the related interference identification technology mainly focuses on two aspects: the first aspect is to identify the interference from the pilot received signal, and subtract the pilot sequence transmission data from the received pilot data to obtain the interference information on the pilot.
  • the first aspect is to identify the interference from the pilot received signal, and subtract the pilot sequence transmission data from the received pilot data to obtain the interference information on the pilot.
  • the second aspect is the frequency sweep technology, the frequency sweep technology is relatively accurate, and the frequency sweep technology Most of the data is swept by the instrument, and the business data scheduling needs to be stopped. Then the instrument needs to be moved continuously because the interference is different in different places, and the instrument can only identify the interference, and cannot combine with the base station system for the next interference processing; or use the baseband. Processing to perform frequency sweeping also requires stopping normal business data scheduling.
  • the invention provides an interference identification method and device, the purpose of which is to solve the problem that the related frequency-based interference recognition technology needs to stop the service data scheduling.
  • an interference identification method including:
  • an interference coordination strategy is adopted for the medium access control MAC layer.
  • the user data includes channel estimation values and decoding results.
  • the step of acquiring one frame of the baseband frequency domain data and the user data of each user in the baseband of the frame includes:
  • the step of generating interference data of the baseband of the frame according to the baseband frequency domain data and the user data of each user Specifically include:
  • the channel reception data of all users is summed to obtain reconstructed data
  • the baseband frequency domain data is subtracted from the reconstructed data to obtain interference data of the baseband of the frame.
  • the step of generating the channel receiving data of the user according to the decoding result of each user and the channel estimation value includes:
  • the coding result of each user is sequentially encoded, modulated, and mapped to generate carrier data of the user;
  • the carrier data is multiplied by the channel estimate to derive the channel reception data for the user.
  • an embodiment of the present invention further provides an interference recognition apparatus, including:
  • Obtaining a module configured to acquire one frame of baseband frequency domain data and user data of each user in the baseband of the frame;
  • Generating a module configured to generate interference data of the baseband of the frame according to baseband frequency domain data, user data of each user, and interference data of the baseband of the frame;
  • the analysis module is configured to continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all interference data to generate an analysis result;
  • the coordination module is configured to adopt an interference coordination strategy for the medium access control MAC layer according to the analysis result.
  • the user data includes channel estimation values and decoding results.
  • the acquiring module specifically includes:
  • a first acquiring submodule configured to obtain one frame of baseband frequency domain data received by the baseband receiving end
  • the second obtaining submodule is configured to obtain a channel estimation value and a decoding result of each user after the baseband frequency domain data is processed by the baseband receiving end.
  • the generating module specifically includes:
  • Generating a submodule configured to generate channel reception data of the user according to a decoding result of each user and a channel estimation value
  • a summation submodule configured to sum the channel reception data of all users to obtain reconstructed data
  • the data generation sub-module is configured to subtract the reconstructed data from the baseband frequency domain data to obtain interference data of the baseband of the frame.
  • the generating the submodule specifically includes:
  • a carrier unit configured to sequentially encode, modulate, and map the decoding result of each user to generate carrier data of the user
  • the receiving data unit is configured to multiply the carrier data by a channel estimation value to obtain channel reception data of the user.
  • the interference identification method and apparatus provided by the embodiments of the present invention, the process of acquiring interference data and analyzing the interference data is completed in the background service, and the service data scheduling does not need to be stopped; the interference data is continuously acquired and statistically analyzed, and the accuracy of the analysis result is improved;
  • the embodiment of the invention adopts an interference coordination strategy for the MAC layer, which solves the disadvantage that the related instrument frequency sweeping technology cannot be combined with the base station system to perform the next interference processing.
  • Embodiment 1 is a flow chart showing the basic steps of Embodiment 1 of the interference recognition method of the present invention
  • FIG. 2 is a flow chart showing the basic steps of the second embodiment of the interference identification method of the present invention.
  • 3 is a flow chart showing the basic steps of the third embodiment of the interference recognition method of the present invention.
  • Embodiment 4 is a flow chart showing the basic steps of Embodiment 4 of the interference recognition method of the present invention.
  • FIG. 5 is a schematic diagram showing the structure of an interference recognition apparatus according to an embodiment of the present invention.
  • the embodiments of the present invention are directed to the interference recognition technology based on the frequency sweep technology in the related art, and most of the problems are performed by performing frequency sweeping on the instrument, and the service data scheduling needs to be stopped, and the instrument can only identify the interference and cannot perform the next interference processing problem, and provides a
  • the interference identification method and device the process of acquiring the interference data and analyzing the interference data are completed in the background service, and the service data scheduling is not required to be stopped; and the embodiment of the present invention adopts an interference coordination strategy for the MAC layer to solve the related interference based on the frequency sweeping technology.
  • the identification method cannot solve the disadvantages of interference processing.
  • an embodiment of the present invention provides an interference identification method, including:
  • Step 101 Acquire one frame of baseband frequency domain data and user data of each user in the baseband of the frame;
  • Step 102 Generate interference data of the baseband of the frame according to the baseband frequency domain data and the user data of each user.
  • Step 103 continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all interference data to generate an analysis result;
  • Step 104 Perform an interference coordination strategy on the medium access control MAC layer according to the analysis result.
  • the baseband frequency domain data received by the baseband receiving end and the user data received by each user are used to generate the interference data of the baseband of the frame, and the interference data of the multiframe baseband is statistically analyzed. , adopt an interference coordination strategy.
  • the whole process is completed in the background business, without stopping the business data scheduling, and does not affect the normal business.
  • most of the relevant frequency sweeping technology is swept by the instrument, and the business data scheduling needs to be stopped, and then the instrument needs to be moved continuously, which improves the operability of the interference recognition technology.
  • the embodiment of the present invention adopts an interference coordination policy for the medium access control MAC layer, and solves the disadvantage that the related instrument frequency sweeping technology cannot be combined with the base station system to perform the next interference processing.
  • the interference coordination strategy mainly includes the following: if the analysis result shows a certain If the noise floor rise is obvious on some radio bearers, the scheduling on the RB needs to be coordinated with the neighboring area. If the analysis result shows that the pilot pollution is serious, the pilot configuration parameters need to be coordinated with the neighboring area to avoid mutual interference; if the interference analysis result If the display continues to have monophonic interference, it can be eliminated directly. Further, in a particular embodiment of the invention, the user data includes channel estimate values and decoding results.
  • the interference data is obtained by acquiring the pilot data and the channel estimation value at the baseband receiving end, thereby performing interference identification, and the interference on the pilot carrier is not simply equivalent to the interference on the service data.
  • the interference data is obtained by acquiring the baseband frequency domain data and the channel estimation value and the decoding result of each user, covering all the data symbols, and the statistical information is more comprehensive and accurate. .
  • the second embodiment of the present invention provides an interference identification method, and the method specifically includes:
  • Step 201 Acquire one frame of baseband frequency domain data received by the baseband receiving end.
  • Step 202 Obtain channel estimation values and decoding results of each user after the baseband frequency domain data is processed by the baseband receiving end.
  • Step 203 Generate interference data of the baseband of the frame according to the baseband frequency domain data and the user data of each user.
  • Step 204 continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all interference data to generate an analysis result;
  • Step 205 Perform an interference coordination policy on the medium access control MAC layer according to the analysis result.
  • the baseband frequency domain data is the original frequency domain data received by the antenna receiving end, processed by the intermediate radio frequency, and then subjected to the fast Fourier transform FFT; the baseband frequency domain data is processed by the receiving end ( Channel estimation, equalization, discrete Fourier transform (IDFT, decoding), the user's decoding result, and the channel estimation value obtained during processing to obtain the interference data of the frame baseband.
  • the baseband frequency domain data is data actually received by the baseband receiving end, and the decoding result is data actually sent to the MAC layer, and the channel estimation value reflects the influence of the channel on the transmission data. Therefore, in a specific embodiment of the present invention,
  • the acquired interference data is more accurate.
  • a third embodiment of the present invention provides an interference identification method, where the method specifically includes:
  • Step 301 Acquire one frame of baseband frequency domain data and user data of each user in the baseband of the frame;
  • Step 302 Generate channel reception data of the user according to the decoding result of each user and the channel estimation value.
  • Step 303 summing channel receiving data of all users, and obtaining reconstructed data
  • Step 304 Subtract the reconstructed data from the baseband frequency domain data to obtain interference data of the baseband of the frame.
  • Step 305 continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all interference data to generate an analysis result;
  • Step 306 Perform an interference coordination strategy on the medium access control MAC layer according to the analysis result.
  • the decoding result of each user is multiplied by the influence of the channel, and the channel reception data of the user, that is, the reception data without interference, is obtained.
  • the channel reception data of the user that is, the reception data without interference.
  • a fourth embodiment of the present invention provides an interference identification method, where the method specifically includes:
  • Step 401 Acquire one frame of baseband frequency domain data and user data of each user in the baseband of the frame;
  • Step 402 sequentially code, modulate, and map the decoding result of each user to generate carrier data of the user.
  • step 403 the carrier data is multiplied by the channel estimation value to obtain channel reception data of the user.
  • Step 404 summing channel receiving data of all users, and obtaining reconstructed data
  • Step 405 Subtract the reconstructed data from the baseband frequency domain data to obtain interference data of the baseband of the frame.
  • Step 406 Continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all interference data to generate an analysis result;
  • Step 407 Perform an interference coordination strategy on the medium access control MAC layer according to the analysis result.
  • the decoding result of each user is sequentially encoded, modulated, and mapped, and the reconstruction of the transmitting end is performed to obtain carrier data of each user, and then the carrier data is multiplied by the channel estimation value.
  • the channel reception data of the user is obtained.
  • an embodiment of the present invention further provides an interference identification apparatus, including:
  • the obtaining module 111 is configured to acquire one frame of baseband frequency domain data and user data of each user in the baseband of the frame;
  • the generating module 112 is configured to generate interference data of the baseband of the frame according to the baseband frequency domain data and the user data of each user;
  • the analyzing module 113 is configured to continuously acquire interference data of a baseband of a preset number of frames, and collect and analyze all the interference data to generate an analysis result;
  • the coordination module 114 is configured to adopt an interference coordination strategy for the medium access control MAC layer according to the analysis result.
  • the user data includes a channel estimation value and a decoding result.
  • the obtaining module 111 specifically includes:
  • a first acquiring submodule configured to obtain one frame of baseband frequency domain data received by the baseband receiving end
  • the second obtaining submodule is configured to obtain a channel estimation value and a decoding result of each user after the baseband frequency domain data is processed by the baseband receiving end.
  • the generating module 112 specifically includes:
  • Generating a submodule configured to generate channel reception data of the user according to a decoding result of each user and a channel estimation value
  • a summation submodule configured to sum the channel reception data of all users to obtain reconstructed data
  • the data generation sub-module is configured to subtract the reconstructed data from the baseband frequency domain data to obtain interference data of the baseband of the frame.
  • the generating the sub-module specifically includes:
  • a carrier unit configured to sequentially encode, modulate, and map the decoding result of each user to generate carrier data of the user
  • the receiving data unit is configured to multiply the carrier data by a channel estimation value to obtain channel reception data of the user.
  • the interference identification device provided by the embodiment of the present invention is a device applying the above method, that is, all the embodiments of the foregoing method are applicable to the device, and all of the same or similar beneficial effects can be achieved.
  • the process of acquiring the interference data and analyzing the interference data is completed in the background service, and the service data scheduling is not required to be stopped; the interference data is continuously acquired and statistically analyzed, and the accuracy of the analysis result is improved; and the MAC layer is implemented in the embodiment of the present invention.
  • the interference coordination strategy is adopted to solve the drawbacks that the related instrument frequency sweeping technology cannot be combined with the base station system for the next interference processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)

Abstract

La présente invention porte sur un procédé et un appareil d'identification de brouillage. Le procédé comprend : l'acquisition de données de domaine de fréquence d'une bande de base de trame et de données d'utilisateur de chaque utilisateur dans la bande de base de trame ; la génération de données de brouillage de la bande de base de trame selon les données de domaine de fréquence de la bande de base et les données d'utilisateur de chaque utilisateur ; l'acquisition successive d'une quantité préréglée de trames de données de brouillage de bande de base, la réalisation d'une collecte de statistiques sur toutes les données de brouillage et l'analyse de toutes les données de brouillage, et la génération d'un résultat d'analyse ; et la réalisation d'une politique de coordination de brouillage sur une couche de contrôle d'accès au support (MAC) selon le résultat d'analyse. Dans le procédé et l'appareil d'identification de brouillage fournis dans la présente invention, les processus d'acquisition de données de brouillage et d'analyse de données de brouillage sont mis en œuvre dans un service en arrière-plan, et une planification de données de service n'a pas besoin d'être arrêtée ; les données de brouillage sont acquises successivement, une collecte de statistiques est réalisée sur les données de brouillage et les données de brouillage sont analysées, améliorant ainsi la précision du résultat d'analyse ; de plus, dans la présente invention, une politique de coordination de brouillage est réalisée sur une couche MAC, résolvant ainsi le désavantage de l'échec d'intégrer une technologie de balayage de fréquence associée avec un système de station de base pour réaliser un traitement de brouillage par la suite.
PCT/CN2016/070727 2015-08-14 2016-01-12 Procédé et appareil d'identification de brouillage WO2016165427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510501137.X 2015-08-14
CN201510501137.XA CN106470176A (zh) 2015-08-14 2015-08-14 一种干扰识别方法及装置

Publications (1)

Publication Number Publication Date
WO2016165427A1 true WO2016165427A1 (fr) 2016-10-20

Family

ID=57125580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/070727 WO2016165427A1 (fr) 2015-08-14 2016-01-12 Procédé et appareil d'identification de brouillage

Country Status (2)

Country Link
CN (1) CN106470176A (fr)
WO (1) WO2016165427A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377531A (zh) * 1999-07-30 2002-10-30 艾利森公司 基带干扰消除扩频通信方法和设备
CN102082614A (zh) * 2009-11-30 2011-06-01 中国移动通信集团广西有限公司 一种基于扫频仪检测通信系统质量的方法及装置
CN102868465A (zh) * 2012-09-17 2013-01-09 中兴通讯股份有限公司 获取宽带频谱的方法及装置
CN103702343A (zh) * 2013-12-30 2014-04-02 大唐移动通信设备有限公司 一种同频干扰小区的检测方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377531A (zh) * 1999-07-30 2002-10-30 艾利森公司 基带干扰消除扩频通信方法和设备
CN102082614A (zh) * 2009-11-30 2011-06-01 中国移动通信集团广西有限公司 一种基于扫频仪检测通信系统质量的方法及装置
CN102868465A (zh) * 2012-09-17 2013-01-09 中兴通讯股份有限公司 获取宽带频谱的方法及装置
CN103702343A (zh) * 2013-12-30 2014-04-02 大唐移动通信设备有限公司 一种同频干扰小区的检测方法及装置

Also Published As

Publication number Publication date
CN106470176A (zh) 2017-03-01

Similar Documents

Publication Publication Date Title
Xia et al. FTrack: Parallel decoding for LoRa transmissions
TWI428032B (zh) 用於偵測無線通訊系統中之未使用ｔｖ頻譜的裝置及方法
US9379924B2 (en) Cognitive radio spectrum sensing with improved edge detection of frequency bands
Bhargavi et al. Performance comparison of energy, matched-filter and cyclostationarity-based spectrum sensing
Gorcin et al. An adaptive threshold method for spectrum sensing in multi-channel cognitive radio networks
US20150181436A1 (en) Cooperative cognitive radio spectrum sensing using a hybrid data-decision method
CN110191071B (zh) 一种窄带物联网系统中基于信道估计的测量方法及装置
TW201332305A (zh) 一種頻譜感知方法和系統
Lagunas et al. Spectral feature detection with sub-Nyquist sampling for wideband spectrum sensing
US20060211389A1 (en) Method and apparatus for narrowband platform interference mitigation
CN102176779A (zh) 无线多媒体传感网视频信号自适应采样与频谱分配方法
WO2012092751A1 (fr) Procédé et système de détection de brouillage de cellule voisine
Kozłowski Implementation and verification of cyclostationary feature detector for dvb‐t signals
Polak et al. Influence of mobile network interfering products on DVB-T/H broadcasting services
US9112762B2 (en) Digital mobile passive leak detection for broadband communication system
US8599970B2 (en) Systems, methods, and apparatuses for detecting digital television (DTV) communications signals
WO2016165427A1 (fr) Procédé et appareil d'identification de brouillage
CN104821856A (zh) 一种用于ofdm频谱感知的噪声功率估计方法
Imana et al. Suppressing the effects of aliasing and IQ imbalance on multiband spectrum sensing
US20100040179A1 (en) Channel estimation
Fernandez et al. A noise reduction scheme for ofdm nb-plc systems
CN112488092B (zh) 基于深度神经网络的导航频段信号类型识别方法及系统
Yenduri et al. Compressive, collaborative spectrum sensing for wideband cognitive radios
Stasionis et al. A new approach for spectrum sensing in wideband
Yagoub et al. Nearby carrier detection based on low cost rtl-sdr front end

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16779402

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16779402

Country of ref document: EP

Kind code of ref document: A1