IN2012DN01515A - - Google Patents

Info

Publication number
IN2012DN01515A
IN2012DN01515A IN1515DEN2012A IN2012DN01515A IN 2012DN01515 A IN2012DN01515 A IN 2012DN01515A IN 1515DEN2012 A IN1515DEN2012 A IN 1515DEN2012A IN 2012DN01515 A IN2012DN01515 A IN 2012DN01515A
Authority
IN
India
Prior art keywords
signal
performance indices
modulation signal
carrier
disclosure
Prior art date
Application number
Inventor
Fanlong; Li
Wenzhong; Bi
Jinming; Lao
Original Assignee
Zte Corp
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 Zte Corp filed Critical Zte Corp
Publication of IN2012DN01515A publication Critical patent/IN2012DN01515A/en

Links

Classifications

    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2637—Modulators with direct modulation of individual subcarriers
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/003—Interference mitigation or co-ordination of multi-user interference at the transmitter
    • 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
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • H04L25/03821—Inter-carrier interference cancellation [ICI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70718—Particular systems or standards
    • H04B2201/70719—CDMA2000
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)

Abstract

The disclosure discloses a method for reducing mutual interference of multi-carrier, comprising: adjusting the delay of at least one modulation signal; respectively modulating each adjusted modulation signal onto each modulated signal; and comparing the performance indices of modulated signals with set performance indices, wherein the delay of at least one modulation signal is adjusted when the set performance indices are not reached, until the performance indices of modulated signals reach the set performance indices, and each current modulated signal is set as an output signal, or each current modulation signal is set as an input signal when the set performance indices are reached. The disclosure further discloses an apparatus for reducing mutual interface of multi-carrier. The disclosure can improve the performance obviously under the circumstance of arranging the multi-carrier adjacent to each other, and enable the multiple carriers to operate simultaneously in the coverage area of one radio signal, thereby greatly improving the frequency spectrum utilization ratio. Fig. 4
IN1515DEN2012 2009-08-08 2009-12-23 IN2012DN01515A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910165245.9A CN101998610B (en) 2009-08-08 2009-08-08 Method and device for reducing multi-carrier mutual interference
PCT/CN2009/075905 WO2011017883A1 (en) 2009-08-08 2009-12-23 Method and apparatus for reducing mutual interference of multi-carrier

Publications (1)

Publication Number Publication Date
IN2012DN01515A true IN2012DN01515A (en) 2015-06-05

Family

ID=43585872

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1515DEN2012 IN2012DN01515A (en) 2009-08-08 2009-12-23

Country Status (5)

Country Link
US (1) US9094271B2 (en)
EP (1) EP2458744B1 (en)
CN (1) CN101998610B (en)
IN (1) IN2012DN01515A (en)
WO (1) WO2011017883A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102118336B (en) * 2011-03-03 2014-01-01 清华大学 Device for generating optical differential phase shift keying codes for time division multiplex (TDM)
CN110913494B (en) * 2018-09-17 2023-04-07 成都鼎桥通信技术有限公司 Transmission method, device, equipment and storage medium of uplink voice service

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2520697B2 (en) 1987-10-23 1996-07-31 アンリツ株式会社 Phase signal filter
US5955992A (en) 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US7076168B1 (en) * 1998-02-12 2006-07-11 Aquity, Llc Method and apparatus for using multicarrier interferometry to enhance optical fiber communications
DE19961777A1 (en) 1999-12-21 2001-07-12 Rudolf Bannasch Methods and devices for transmitting information
US7522900B2 (en) * 2001-03-20 2009-04-21 Broadcom Corporation DC offset correction for use in a radio architecture
US7266156B2 (en) * 2002-04-26 2007-09-04 Qualcomm Incorporated Method and apparatus for reducing peak to average power ratio of a multi-carrier signal
CN1290280C (en) * 2002-12-31 2006-12-13 上海贝尔阿尔卡特股份有限公司 Method of self eliminating interference between self adaptive carriers and receiving and transmitting machine
US7200188B2 (en) 2003-01-27 2007-04-03 Analog Devices, Inc. Method and apparatus for frequency offset compensation
JP3933628B2 (en) * 2003-12-26 2007-06-20 株式会社東芝 Multi-carrier communication system and transmission apparatus, reception apparatus, transmission method, and reception method used in this system
DE102004029236B4 (en) * 2004-06-17 2006-08-03 Infineon Technologies Ag Method and device for reducing the dynamic range of a radio signal
RU2007144498A (en) * 2005-05-30 2009-06-10 Мацусита Электрик Индастриал Ко., Лтд. (Jp) DEVELOPMENT OF A BASIC STATION IN A WIRELESS COMMUNICATION SYSTEM AND A WIRELESS COMMUNICATION METHOD IN TRANSMISSION ON A MULTIPLE CARRIER FREQUENCIES
JP4958565B2 (en) 2006-01-06 2012-06-20 パナソニック株式会社 Wireless communication device
JP4825151B2 (en) 2007-02-26 2011-11-30 日本無線株式会社 Wireless transceiver
CN101453257A (en) 2007-12-03 2009-06-10 国家广播电影电视总局广播科学研究院 Differential space-time transmission diversity system in multi-carrier modulation system and implementing method
CN101404509B (en) * 2008-11-11 2012-08-29 桂林航天光比特科技股份公司 Signal interference canceller and signal interference canceling method
CN101997795B (en) * 2009-08-08 2015-01-28 中兴通讯股份有限公司 Method and device for reducing mutual interference of multiple carriers

Also Published As

Publication number Publication date
EP2458744A4 (en) 2017-05-24
US9094271B2 (en) 2015-07-28
US20120122445A1 (en) 2012-05-17
EP2458744B1 (en) 2018-10-17
CN101998610B (en) 2014-06-11
WO2011017883A1 (en) 2011-02-17
CN101998610A (en) 2011-03-30
EP2458744A1 (en) 2012-05-30

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