BR0107951A - Geradores pn para sistemas de comunicações por espalhamento espectral - Google Patents

Geradores pn para sistemas de comunicações por espalhamento espectral

Info

Publication number
BR0107951A
BR0107951A BR0107951-4A BR0107951A BR0107951A BR 0107951 A BR0107951 A BR 0107951A BR 0107951 A BR0107951 A BR 0107951A BR 0107951 A BR0107951 A BR 0107951A
Authority
BR
Brazil
Prior art keywords
sequences
pilot signal
generators
spread
uncorrelated
Prior art date
Application number
BR0107951-4A
Other languages
English (en)
Inventor
Peter J Black
Roberto Padovani
Lindsay A Weaver Jr
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0107951A publication Critical patent/BR0107951A/pt

Links

Classifications

    • 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
    • H04B1/7073—Synchronisation aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker

Landscapes

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

Abstract

"GERADORES PN PARA SISTEMAS DE COMUNICAçõES POR ESPALHAMENTO ESPECTRAL". Técnicas para aperfeiçoar o processo de aquisição em um ambiente de espectro espalhado. Os sinais de diferentes sistemas CDMA são espalhados com conjuntos diferentes de seq³ências PN, com as seq³ências PN em cada conjunto sendo não correlacionadas com as seq³ências PN nos outros conjuntos. Pela utilização das seq³ências PN não correlacionadas, a probabilidade de detecção de um sinal piloto de um sistema indesejado é reduzida ou minimizada, e o tempo mínimo para a aquisição do sinal piloto a partir do sistema desejado é aperfeiçoado. A estação móvel pode tentar adquirir o sinal piloto processando o sinal recebido com um primeiro conjunto de seq³ências PN correspondentes a uma primeira hipótese do sinal particular sendo adquirido. Se a aquisição do sinal piloto falhar, um segundo conjunto de seq³ências PN correspondentes a uma segunda hipótese é selecionado e utilizado para processar o sinal recebido. As seq³ências PN no segundo conjunto não são correlacionadas com as seq³ências PN no primeiro conjunto. As seq³ências PN para o primeiro conjunto podem ser geradas com base nos polinomiais característicos definidos por IS-95-A e as seq³ências PN para o segundo conjunto pode ser o inverso das seq³ências PN para o primeiro conjunto.
BR0107951-4A 2000-01-31 2001-01-31 Geradores pn para sistemas de comunicações por espalhamento espectral BR0107951A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/494,838 US6661833B1 (en) 2000-01-31 2000-01-31 PN generators for spread spectrum communications systems
PCT/US2001/003243 WO2001056172A2 (en) 2000-01-31 2001-01-31 Pn generators for spread spectrum communications systems

Publications (1)

Publication Number Publication Date
BR0107951A true BR0107951A (pt) 2004-07-27

Family

ID=23966187

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0107951-4A BR0107951A (pt) 2000-01-31 2001-01-31 Geradores pn para sistemas de comunicações por espalhamento espectral

Country Status (16)

Country Link
US (2) US6661833B1 (pt)
EP (2) EP2207268B1 (pt)
JP (3) JP5179688B2 (pt)
KR (3) KR100891883B1 (pt)
CN (1) CN1202627C (pt)
AU (2) AU2001238005B2 (pt)
BR (1) BR0107951A (pt)
CA (1) CA2398673C (pt)
HK (1) HK1055030A1 (pt)
IL (3) IL150974A0 (pt)
MX (1) MXPA02007335A (pt)
NO (1) NO20023618L (pt)
RU (1) RU2269202C2 (pt)
TW (1) TW531987B (pt)
UA (1) UA73157C2 (pt)
WO (1) WO2001056172A2 (pt)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543148B1 (en) 1999-07-13 2009-06-02 Microsoft Corporation Audio watermarking with covert channel and permutations
US6661833B1 (en) * 2000-01-31 2003-12-09 Qualcomm Incorporated PN generators for spread spectrum communications systems
US6728225B1 (en) * 2000-02-10 2004-04-27 Interdigital Technology Corporation Asymmetrical forward/reverse transmission bandwidth
US6845104B2 (en) * 2000-06-14 2005-01-18 Ipr Licensing, Inc. Receiver for time division multiplex system without explicit time slot assignment
US8977683B2 (en) 2000-12-26 2015-03-10 Polycom, Inc. Speakerphone transmitting password information to a remote device
US8964604B2 (en) 2000-12-26 2015-02-24 Polycom, Inc. Conference endpoint instructing conference bridge to dial phone number
US8948059B2 (en) 2000-12-26 2015-02-03 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US9001702B2 (en) 2000-12-26 2015-04-07 Polycom, Inc. Speakerphone using a secure audio connection to initiate a second secure connection
US7864938B2 (en) 2000-12-26 2011-01-04 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US7339605B2 (en) 2004-04-16 2008-03-04 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US7031377B2 (en) * 2001-01-26 2006-04-18 Agere Systems Inc. Receiver and low power digital filter therefor
US6993542B1 (en) * 2001-03-12 2006-01-31 Cisco Technology, Inc. Efficient random number generation for communication systems
US8934382B2 (en) 2001-05-10 2015-01-13 Polycom, Inc. Conference endpoint controlling functions of a remote device
CA2446707C (en) 2001-05-10 2013-07-30 Polycom Israel Ltd. Control unit for multipoint multimedia/audio system
US7023899B2 (en) * 2001-05-10 2006-04-04 Lucent Technologies Inc. Method for reliable signaling information transmission in a wireless communication system
US8976712B2 (en) 2001-05-10 2015-03-10 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
JP2003046410A (ja) * 2001-07-31 2003-02-14 Sanyo Electric Co Ltd デジタルマッチトフィルタおよびデジタルマッチトフィルタを用いた携帯無線端末
US20030052711A1 (en) * 2001-09-19 2003-03-20 Taylor Bradley L. Despreader/correlator unit for use in reconfigurable chip
JP3746983B2 (ja) * 2001-10-25 2006-02-22 京セラ株式会社 移動通信端末、及びそのアレーアンテナ指向性制御方法
US7095710B2 (en) * 2001-12-21 2006-08-22 Qualcomm Decoding using walsh space information
US8934381B2 (en) 2001-12-31 2015-01-13 Polycom, Inc. Conference endpoint instructing a remote device to establish a new connection
US7787605B2 (en) 2001-12-31 2010-08-31 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US8705719B2 (en) 2001-12-31 2014-04-22 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US7978838B2 (en) 2001-12-31 2011-07-12 Polycom, Inc. Conference endpoint instructing conference bridge to mute participants
US8023458B2 (en) 2001-12-31 2011-09-20 Polycom, Inc. Method and apparatus for wideband conferencing
US8102984B2 (en) * 2001-12-31 2012-01-24 Polycom Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US8144854B2 (en) 2001-12-31 2012-03-27 Polycom Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US8223942B2 (en) 2001-12-31 2012-07-17 Polycom, Inc. Conference endpoint requesting and receiving billing information from a conference bridge
US7742588B2 (en) * 2001-12-31 2010-06-22 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US20030227881A1 (en) * 2002-02-19 2003-12-11 Liangchi Hsu Apparatus, and associated method, for facilitating delivery of signaling data in a packet radio communication system
FR2836310A1 (fr) * 2002-02-19 2003-08-22 Wavecom Sa Generateur permettant de parcourir une suite de sequences dans les deux sens, demodulateur, terminal et procede correspondant
KR100810346B1 (ko) * 2002-05-25 2008-03-07 삼성전자주식회사 이동통신 단말기의 256-탭 정합필터링 장치 및 방법
US7474688B2 (en) * 2002-10-01 2009-01-06 Texas Instruments Incorporated System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher
US20040258131A1 (en) * 2003-06-17 2004-12-23 Kenneth Margon Parallel spread spectrum communication system and method
JP3847289B2 (ja) * 2003-11-10 2006-11-22 株式会社半導体理工学研究センター パルスベース通信システム
US8009551B2 (en) * 2004-12-22 2011-08-30 Qualcomm Incorporated Initial pilot frequency selection
EP1705806B1 (en) * 2005-03-21 2011-09-28 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Determining a detection signal in a spread spectrum communications system
US8199791B2 (en) * 2005-06-08 2012-06-12 Polycom, Inc. Mixed voice and spread spectrum data signaling with enhanced concealment of data
US8126029B2 (en) * 2005-06-08 2012-02-28 Polycom, Inc. Voice interference correction for mixed voice and spread spectrum data signaling
US7796565B2 (en) * 2005-06-08 2010-09-14 Polycom, Inc. Mixed voice and spread spectrum data signaling with multiplexing multiple users with CDMA
US20070297497A1 (en) * 2006-06-21 2007-12-27 Seibert Cristina A Apparatus And Method For Interference Cancellation
US7983235B2 (en) * 2007-11-05 2011-07-19 Freescale Semiconductor, Inc. High speed overlay mode for burst data and real time streaming (audio) applications
KR100999260B1 (ko) 2008-08-22 2010-12-07 한국전자통신연구원 Ｐｎ 코드 발생 장치 및 방법
KR101091164B1 (ko) 2008-11-21 2011-12-09 한국전자통신연구원 Ｐｎ 코드 발생을 개선한 능동형 ｒｆｉｄ 장치
CN101800930B (zh) * 2009-02-11 2017-11-14 中兴通讯美国公司 终端重定向方法和无线通讯方法
US7944319B2 (en) * 2009-03-31 2011-05-17 Texas Instruments Incorporated Clock spreading systems and methods
US8878041B2 (en) * 2009-05-27 2014-11-04 Microsoft Corporation Detecting beat information using a diverse set of correlations
US9294321B2 (en) * 2010-05-14 2016-03-22 The Boeing Company Bit signal structure for differentially encoded broadcasts
US9470908B1 (en) 2013-11-08 2016-10-18 Jeffrey Frankel Adaptable loupe supporting eyewear
WO2015129195A1 (ja) * 2014-02-28 2015-09-03 日本電気株式会社 無線送信装置、無線受信装置、無線通信システムおよび無線通信方法
RU2628028C2 (ru) * 2015-11-18 2017-08-14 Максим Евгеньевич Лепилин Способ создания охранной сигнализации в автомобиле
CN107180206B (zh) * 2016-03-11 2020-01-14 中国电子科技集团公司电子科学研究院 一种基于cdma的固态硬盘安全控制方法及装置
CN107391660B (zh) * 2017-07-18 2021-05-11 太原理工大学 一种用于子话题划分的诱导划分方法
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
KR20210087089A (ko) 2018-11-27 2021-07-09 엑스콤 랩스 인코퍼레이티드 넌-코히어런트 협력 다중 입출력 통신
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
CN111399804B (zh) * 2020-03-04 2023-07-25 成都卫士通信息产业股份有限公司 一种随机数生成方法、装置、智能移动终端及存储介质
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
CN116546604B (zh) * 2023-07-06 2023-11-14 中国电力科学研究院有限公司 一种自适应的低功耗信号捕获检测方法及系统

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795865A (en) * 1972-02-23 1974-03-05 Honeywell Inf Systems Automated real time equalized modem
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5659569A (en) 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
JP3293278B2 (ja) * 1993-11-12 2002-06-17 株式会社日立製作所 送受信機
KR970011690B1 (ko) * 1994-11-22 1997-07-14 삼성전자 주식회사 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기
US5598154A (en) * 1994-12-02 1997-01-28 Unisys Corporation Apparatus and method for generating and utilizing pseudonoise code sequences
JPH098696A (ja) * 1995-06-16 1997-01-10 Toshiba Corp スペクトル拡散通信システムおよびこのシステムで使用されるスペクトル拡散変調装置並びに復調装置
US5805648A (en) 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
US6108317A (en) * 1995-11-01 2000-08-22 Stm Wireless, Inc. Cyclic code phase multiple access for inbound satellite communications
JP3358170B2 (ja) * 1996-07-24 2002-12-16 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａ無線通信の受信方法
US5790589A (en) * 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
US5781543A (en) 1996-08-29 1998-07-14 Qualcomm Incorporated Power-efficient acquisition of a CDMA pilot signal
US5903554A (en) 1996-09-27 1999-05-11 Qualcomm Incorporation Method and apparatus for measuring link quality in a spread spectrum communication system
JP3311951B2 (ja) * 1996-12-20 2002-08-05 富士通株式会社 符号多重送信装置
JP3594063B2 (ja) * 1997-01-13 2004-11-24 ソニー株式会社 情報信号伝送方法および複製防止制御方法
US6574211B2 (en) 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
US6018547A (en) * 1998-01-09 2000-01-25 Bsd Broadband, N.V. Method and apparatus for increasing spectral efficiency of CDMA systems using direct sequence spread spectrum signals
WO1999045670A2 (en) 1998-03-05 1999-09-10 Koninklijke Philips Electronics N.V. Mask generating polynomials for pseudo-random noise generators
JPH11298374A (ja) 1998-04-13 1999-10-29 Sony Corp 疑似雑音符号発生回路及びその初期化方法
JPH11331124A (ja) * 1998-05-12 1999-11-30 Matsushita Electric Ind Co Ltd Ｃｄｍａ方式通信機
US6542484B1 (en) * 1998-05-15 2003-04-01 Telefonaktiebolaget Lm Ericsson (Publ) Code allocation for radiocommunication systems
JP4267092B2 (ja) * 1998-07-07 2009-05-27 富士通株式会社 時刻同期方法
DE19838782C2 (de) * 1998-08-26 2002-12-19 Ericsson Telefon Ab L M Sender, Empfänger und Verfahren in einem Telekommunikationssystem zum Erzeugen von PN-Sequenzen für eine Vielzahl von Benutzerkanälen
US6556555B1 (en) * 1998-09-22 2003-04-29 J.S. Lee Associates, Inc. Method for calculating the PN generator mask to obtain a desired shift of the PN code
CN1130867C (zh) * 1998-09-25 2003-12-10 三星电子株式会社 在移动通信系统中生成准正交码和扩展信道信号的设备和方法
US6567666B2 (en) * 1998-12-02 2003-05-20 Infineon Technologies North America Corp. Forward link inter-generation soft handoff between 2G and 3G CDMA systems
JP3320667B2 (ja) * 1998-12-21 2002-09-03 株式会社東芝 スペクトラム拡散無線通信装置
US6356528B1 (en) * 1999-04-15 2002-03-12 Qualcomm Incorporated Interleaver and deinterleaver for use in a diversity transmission communication system
US6556551B1 (en) * 1999-05-27 2003-04-29 Lgc Wireless, Inc. Multi-frequency pilot beacon for CDMA systems
US6430170B1 (en) * 1999-05-27 2002-08-06 Qualcomm Inc. Method and apparatus for generating random numbers from a communication signal
US6452959B1 (en) * 1999-05-28 2002-09-17 Dot Wireless, Inc. Method of and apparatus for generating data sequences for use in communications
US6748006B1 (en) * 1999-05-28 2004-06-08 Texas Instruments Incorporated Method and apparatus for controlling system timing with use of a master timer
US6603752B1 (en) * 1999-07-29 2003-08-05 Ahmed Saifuddin Method and system for controlling transmission energy in a variable rate gated communication system
US6587448B1 (en) * 1999-10-18 2003-07-01 Lucent Technologies Inc. Reconfigurable wireless system base station
US6661833B1 (en) 2000-01-31 2003-12-09 Qualcomm Incorporated PN generators for spread spectrum communications systems
US20030112849A1 (en) * 2001-12-18 2003-06-19 Gorday Paul Edward Efficient quadrature code position modulation
KR200410785Y1 (ko) 2005-12-29 2006-03-08 정창술 콘덴서 마이크로폰
JP5031902B2 (ja) 2007-09-19 2012-09-26 アルカテル−ルーセント ユーエスエー インコーポレーテッド 端末のハンドオーバのための方法、ネットワーク要素、基地局、および通信システム

Also Published As

Publication number Publication date
KR100845166B1 (ko) 2008-07-09
EP2207268B1 (en) 2015-09-23
US20040052302A1 (en) 2004-03-18
JP5123408B2 (ja) 2013-01-23
JP2011151817A (ja) 2011-08-04
EP2207268A1 (en) 2010-07-14
KR20020073195A (ko) 2002-09-19
JP2003523661A (ja) 2003-08-05
IL150974A0 (en) 2003-02-12
EP1252724A2 (en) 2002-10-30
JP5179688B2 (ja) 2013-04-10
IL185886A (en) 2009-07-20
US8611310B2 (en) 2013-12-17
RU2002123370A (ru) 2004-02-20
CA2398673A1 (en) 2001-08-02
KR20070020159A (ko) 2007-02-16
IL150974A (en) 2008-11-03
KR100891883B1 (ko) 2009-04-03
JP2012010374A (ja) 2012-01-12
HK1055030A1 (en) 2003-12-19
WO2001056172A2 (en) 2001-08-02
IL185886A0 (en) 2008-01-06
WO2001056172A3 (en) 2002-02-21
CN1202627C (zh) 2005-05-18
NO20023618L (no) 2002-09-25
RU2269202C2 (ru) 2006-01-27
AU3800501A (en) 2001-08-07
CN1428021A (zh) 2003-07-02
TW531987B (en) 2003-05-11
US6661833B1 (en) 2003-12-09
AU2001238005B2 (en) 2005-05-05
KR20080022236A (ko) 2008-03-10
JP5215439B2 (ja) 2013-06-19
MXPA02007335A (es) 2003-02-12
CA2398673C (en) 2010-03-30
NO20023618D0 (no) 2002-07-30
UA73157C2 (en) 2005-06-15

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