JP2006304374A - 通信前前置位相回転を用いるcdma通信 - Google Patents
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- 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
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
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- 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
- H04B1/62—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 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
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- 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
-
- 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
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
-
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- 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
- H04B2001/70724—Spread spectrum techniques using direct sequence modulation featuring pilot assisted reception
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- 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
- H04B2201/696—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to Dowlink
-
- 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
- H04B2201/7097—Direct sequence modulation interference
- H04B2201/709709—Methods of preventing interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0018—Arrangements at the transmitter end
- H04L2027/0022—Arrangements at the transmitter end using the carrier of the associated receiver of a transceiver
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Air Conditioning Control Device (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Small-Scale Networks (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Transmitters (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Studio Devices (AREA)
- Transmission Devices (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Valve Device For Special Equipments (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
【解決方法】 ディジタルスペクトラム拡散通信システムにおいて交信の相手方からの受信信号について位相誤差および周波数誤差を交信中に算出し、その交信相手への送信の前に信号の位相誤差および周波数誤差を前置補正する。
【選択図】 図8A
Description
G1=1718(37) および G2=1338(39)
である。
852, 85nおよびパイロット逆拡散器87に供給する。パイロット信号89は、別個の逆拡散器87およびpn符号系列91により、pn符号系列931,932,93nによる逆拡散を逆拡散器851,852,85nで受けるチャネルへのデータ77と同時並行的に逆拡散される。データチャネルの逆拡散(851,852,85n)ののち、データビットストリーム951,952,95nをヴィタービ復号器971,972,97nに供給し、出力991,992,99nにデータ出力を得る。
27 送信機
29 受信機
31 シグナルプロセッサ
35 前向き誤り訂正符号化装置(FEC)
41a,41b 同相(I)チャネル、直交位相(Q)チャネル
45a,45b スペクトラム拡散ずみI信号およびQ信号
51 搬送波信号
53 コンバイナ
61 フィルタ
65a,65b データ信号
67 シグナルプロセッサ
77 複素ベースバンドディジタルスペクトラム拡散信号
79 適応型整合フィルタ
81 フィルタ重みづけ係数
85 逆拡散器
87 パイロット用逆拡散器
97 ヴィタービ復号器
101 rake受信機
117 複素ミキサ
119 誤差補正信号
121 ハード判定器
123 複素共役値発生器
131 チャネル推算器
135 慣用のPLL回路
Claims (6)
- 少なくとも二つの送受信ユニットを有するCDMA通信システムであって第1の送受信ユニットが第2の送受信ユニットからのCDMA通信信号を受信するCDMA通信システムにおいて伝送誤差を軽減する方法において前記第1の送受信ユニットが、
前記第1の送受信ユニットで前記受信した信号を誤差について分析する過程と、
前記分析に基づく補正信号を前記第1の送受信ユニットで発生する過程と、
前記第1の送受信ユニットから前記第2の送受信ユニットへの音声またはデータを含む情報信号の送信の前に前記補正信号を用いて前記情報信号を補正する過程と
を含む方法。 - 前記受信信号を前記補正信号で補正する過程
をさらに含む請求項1記載の方法。 - 前記誤差が位相誤差を含み前記補正信号が前記位相誤差を補正する請求項1記載の方法。
- 前記誤差が周波数誤差を含み前記補正信号が前記周波数誤差を補正する請求項1記載の方法。
- 少なくとも二つの送受信ユニットの間の交信中に伝送誤差を軽減するCDMA通信システムであって、前記送受信ユニットの各々が、
もう一つの送受信ユニットからのCDMA通信信号を受信する受信機を含み、その受信機が、
前記受信した信号を誤差について分析して補正信号を発生する分析器と、
前記受信した信号を前記補正信号を用いて補正する補正ユニットと、
前記補正信号を用いて前記もう一つの送受信ユニットへの送信の前に信号を補正する送信機と
を含むCDMA通信システム。 - CDMA無線インタフェース経由で複数のチャネルおよび受信中の搬送波オフセット解消用のパイロット信号を用いて互いに交信する複数の送受信局を有する請求項5記載のCDMA通信システムにおいて、前記送受信局の各々が受信機および送信機を含み、前記受信機が、
復調ずみのCDMA通信信号を受けるとともに重みづけ信号を用いてフィルタ処理ずみの信号を生ずる適応型整合フィルタと、
復調ずみのCDMA通信信号および選ばれたチャネルについて発生した擬似雑音符号系列を受けるとともにフィルタ重みづけ信号を生ずるrake受信機と、
前記フィルタ重みづけ信号を前記補正信号と混合して前記適応型整合フィルタの用いる重みづけ信号を生ずる混合手段と、
前記適応型整合フィルタ出力に接続され、前記選ばれたチャネルのための擬似雑音信号により前記フィルタ処理ずみの信号を逆拡散して逆拡散ずみの信号を生ずる少なくとも一つの逆拡散器と
をさらに含み、前記送信機が、
情報信号を供給するデータ入力と、
前記情報信号をスペクトラム拡散する少なくとも一つの拡散器と、
前記スペクトラム拡散ずみの信号を周波数アップコンバージョンおよび送信の前に前記補正信号と混合するミキサと
とを含む請求項5記載の通信システム。
Applications Claiming Priority (2)
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US19267000P | 2000-03-28 | 2000-03-28 | |
US60/192,670 | 2000-03-28 |
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JP2001571572A Division JP4094852B2 (ja) | 2000-03-28 | 2001-03-28 | 伝送誤差を軽減する通信方法 |
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JP2011111565A Division JP5481427B2 (ja) | 2000-03-28 | 2011-05-18 | 伝送誤差を軽減する方法 |
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JP2006304374A true JP2006304374A (ja) | 2006-11-02 |
JP4782638B2 JP4782638B2 (ja) | 2011-09-28 |
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JP2001571572A Expired - Fee Related JP4094852B2 (ja) | 2000-03-28 | 2001-03-28 | 伝送誤差を軽減する通信方法 |
JP2006220343A Expired - Fee Related JP4782638B2 (ja) | 2000-03-28 | 2006-08-11 | 通信前前置位相回転を用いるcdma通信 |
JP2011111565A Expired - Fee Related JP5481427B2 (ja) | 2000-03-28 | 2011-05-18 | 伝送誤差を軽減する方法 |
JP2012155562A Expired - Fee Related JP5481531B2 (ja) | 2000-03-28 | 2012-07-11 | 伝送誤差を軽減する方法 |
JP2013094607A Pending JP2013192242A (ja) | 2000-03-28 | 2013-04-26 | 伝送誤差を軽減する方法 |
JP2014185235A Pending JP2015019411A (ja) | 2000-03-28 | 2014-09-11 | 伝送誤差を軽減する方法 |
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JP2011111565A Expired - Fee Related JP5481427B2 (ja) | 2000-03-28 | 2011-05-18 | 伝送誤差を軽減する方法 |
JP2012155562A Expired - Fee Related JP5481531B2 (ja) | 2000-03-28 | 2012-07-11 | 伝送誤差を軽減する方法 |
JP2013094607A Pending JP2013192242A (ja) | 2000-03-28 | 2013-04-26 | 伝送誤差を軽減する方法 |
JP2014185235A Pending JP2015019411A (ja) | 2000-03-28 | 2014-09-11 | 伝送誤差を軽減する方法 |
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US (10) | US6831941B2 (ja) |
EP (5) | EP1901441A1 (ja) |
JP (6) | JP4094852B2 (ja) |
KR (9) | KR100959321B1 (ja) |
CN (2) | CN1237729C (ja) |
AT (3) | ATE465556T1 (ja) |
AU (4) | AU4955801A (ja) |
BR (1) | BR0109904A (ja) |
CA (2) | CA2652083A1 (ja) |
DE (3) | DE60132643T2 (ja) |
DK (3) | DK1530301T3 (ja) |
ES (3) | ES2300884T3 (ja) |
HK (1) | HK1057429A1 (ja) |
IL (3) | IL151905A0 (ja) |
MX (1) | MXPA02009345A (ja) |
NO (2) | NO326188B1 (ja) |
WO (1) | WO2001073968A1 (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6366607B1 (en) * | 1998-05-14 | 2002-04-02 | Interdigital Technology Corporation | Processing for improved performance and reduced pilot |
KR100959321B1 (ko) | 2000-03-28 | 2010-05-26 | 인터디지탈 테크날러지 코포레이션 | 송신 전에 사전 회전을 이용하는 코드 분할 다중 접속 시스템 |
EP2222113B1 (en) * | 2001-11-26 | 2011-12-28 | Intellectual Ventures I LLC | Mac layer inverse multiplexing in a third generation ran |
MXPA04008840A (es) * | 2002-03-19 | 2004-11-26 | Thomson Licensing Sa | Algoritmo de rebanado para esquemas de ecualizacion de modulacion de multiples niveles. |
KR100640581B1 (ko) | 2004-07-02 | 2006-10-31 | 삼성전자주식회사 | 상향 링크 통신시 엑세스 사용자의 주파수 옵셋을제어하는 직교 주파수 분할 다중 접속 시스템 및 주파수옵셋 제어 방법 |
DE102004038621B3 (de) * | 2004-08-09 | 2006-02-16 | Siemens Ag | Ermittlungsverfahren für ein Lagesignal |
JP4351658B2 (ja) * | 2005-07-21 | 2009-10-28 | マイクロン テクノロジー, インク. | メモリ容量低減化方法、メモリ容量低減化雑音低減化回路及びメモリ容量低減化装置 |
JP4699843B2 (ja) * | 2005-09-15 | 2011-06-15 | 富士通株式会社 | 移動通信システム、並びに移動通信システムにおいて使用される基地局装置および移動局装置 |
BRPI0717952A2 (pt) * | 2006-11-06 | 2013-11-05 | Qualcomm Inc | Embaralhamento de nível de palavra-código para transmissão mimo |
US7773664B2 (en) * | 2008-03-18 | 2010-08-10 | On-Ramp Wireless, Inc. | Random phase multiple access system with meshing |
US20090239550A1 (en) * | 2008-03-18 | 2009-09-24 | Myers Theodore J | Random phase multiple access system with location tracking |
US8958460B2 (en) | 2008-03-18 | 2015-02-17 | On-Ramp Wireless, Inc. | Forward error correction media access control system |
US8520721B2 (en) | 2008-03-18 | 2013-08-27 | On-Ramp Wireless, Inc. | RSSI measurement mechanism in the presence of pulsed jammers |
US7593452B1 (en) * | 2008-03-18 | 2009-09-22 | On-Ramp Wireless, Inc. | Despreading spread spectrum data |
US7733945B2 (en) * | 2008-03-18 | 2010-06-08 | On-Ramp Wireless, Inc. | Spread spectrum with doppler optimization |
US8477830B2 (en) | 2008-03-18 | 2013-07-02 | On-Ramp Wireless, Inc. | Light monitoring system using a random phase multiple access system |
US8995568B1 (en) * | 2008-09-05 | 2015-03-31 | Marvell International Ltd. | Phase transformation of repeated signals |
US7639726B1 (en) * | 2009-03-20 | 2009-12-29 | On-Ramp Wireless, Inc. | Downlink communication |
US8363699B2 (en) | 2009-03-20 | 2013-01-29 | On-Ramp Wireless, Inc. | Random timing offset determination |
US7702290B1 (en) | 2009-04-08 | 2010-04-20 | On-Ramp Wirless, Inc. | Dynamic energy control |
US20120265872A1 (en) * | 2011-04-18 | 2012-10-18 | Cox Communications, Inc. | Systems and Methods of Automatically Remediating Fault Conditions |
US9166839B2 (en) * | 2013-02-13 | 2015-10-20 | Aviat U.S., Inc. | Systems and methods for reducing effects of local oscillator leakage |
JP2016167781A (ja) * | 2015-03-10 | 2016-09-15 | 富士通株式会社 | 無線通信装置及び無線通信装置の制御方法 |
US9729119B1 (en) | 2016-03-04 | 2017-08-08 | Atmel Corporation | Automatic gain control for received signal strength indication |
ES2938244T3 (es) * | 2016-11-08 | 2023-04-05 | Fraunhofer Ges Forschung | Aparato y procedimiento para codificar o decodificar una señal multicanal usando una ganancia lateral y una ganancia residual |
CN106685473B (zh) * | 2016-12-22 | 2018-03-02 | 惠科股份有限公司 | 一种传输信号的展频解码方法、终端及显示装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06164657A (ja) * | 1992-11-16 | 1994-06-10 | N T T Idou Tsuushinmou Kk | 送受信装置 |
JPH0983484A (ja) * | 1995-09-11 | 1997-03-28 | Hitachi Ltd | Cdma方式移動通信システム |
JPH09102768A (ja) * | 1995-10-04 | 1997-04-15 | Matsushita Electric Ind Co Ltd | 移動体通信装置 |
WO1997019557A1 (en) * | 1995-11-21 | 1997-05-29 | Stanford Telecommunications, Inc. | Frequency drift correction in subscriber terminals |
WO1999059259A1 (en) * | 1998-05-14 | 1999-11-18 | Interdigital Technology Corporation | Multipath cdma receiver for reduced pilot |
Family Cites Families (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51116609A (en) * | 1975-04-04 | 1976-10-14 | Nec Corp | Initial connection system and apparatus for time division multiple acc ess communication system |
US4328585A (en) * | 1980-04-02 | 1982-05-04 | Signatron, Inc. | Fast adapting fading channel equalizer |
EP0064996B1 (en) * | 1980-11-19 | 1985-10-30 | Ford Motor Company Limited | Motor vehicle wheel suspension |
GB2135844B (en) * | 1983-02-21 | 1986-08-28 | Nippon Telegraph & Telephone | Oscillator with variable frequency and phase |
KR950001519B1 (ko) * | 1991-12-17 | 1995-02-25 | 주식회사금성사 | 니캄 수신기의 qpsk 복조회로 |
US5579338A (en) | 1992-06-29 | 1996-11-26 | Mitsubishi Denki Kabushiki Kaisha | Spread spectrum receiver using partial correlations |
US5305349A (en) * | 1993-04-29 | 1994-04-19 | Ericsson Ge Mobile Communications Inc. | Quantized coherent rake receiver |
US5351016A (en) * | 1993-05-28 | 1994-09-27 | Ericsson Ge Mobile Communications Inc. | Adaptively self-correcting modulation system and method |
CN1035586C (zh) | 1993-10-13 | 1997-08-06 | Ntt移动通信网株式会社 | 扩频通信接收机 |
EP0688483B1 (en) | 1993-12-03 | 2001-04-04 | Koninklijke Philips Electronics N.V. | A digital communication system and a receiver for use in such a system |
EP1622296A3 (en) | 1994-06-23 | 2006-12-13 | NTT DoCoMo, Inc. | CDMA demodulation circuit and demodulation method |
CA2153516C (en) * | 1994-07-20 | 1999-06-01 | Yasuo Ohgoshi | Mobile station for cdma mobile communication system and detection method of the same |
US5499236A (en) * | 1994-08-16 | 1996-03-12 | Unisys Corporation | Synchronous multipoint-to-point CDMA communication system |
US5619524A (en) | 1994-10-04 | 1997-04-08 | Motorola, Inc. | Method and apparatus for coherent communication reception in a spread-spectrum communication system |
US5659573A (en) | 1994-10-04 | 1997-08-19 | Motorola, Inc. | Method and apparatus for coherent reception in a spread-spectrum receiver |
JPH08172464A (ja) | 1994-12-20 | 1996-07-02 | Fujitsu Ltd | キャリア位相制御回路 |
KR0144828B1 (ko) * | 1994-12-23 | 1998-08-01 | 양승택 | Qpsk복조기 |
US5691974A (en) | 1995-01-04 | 1997-11-25 | Qualcomm Incorporated | Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
JPH0969798A (ja) | 1995-09-01 | 1997-03-11 | Toshiba Corp | 携帯無線機及びこれを用いた無線通信システム |
JP2850949B2 (ja) | 1995-12-15 | 1999-01-27 | 日本電気株式会社 | デジタルpll装置 |
US5930288A (en) | 1996-05-06 | 1999-07-27 | Motorola, Inc. | Time-shared lock indicator circuit and method for power control and traffic channel decoding in a radio receiver |
JPH1022874A (ja) * | 1996-07-09 | 1998-01-23 | Hitachi Ltd | Cdma通信システムおよび通信方法 |
US5901173A (en) * | 1996-12-09 | 1999-05-04 | Raytheon Company | Noise Estimator |
JP3311951B2 (ja) * | 1996-12-20 | 2002-08-05 | 富士通株式会社 | 符号多重送信装置 |
KR100407916B1 (ko) | 1996-12-27 | 2004-03-24 | 엘지전자 주식회사 | 큐피에스케이 복조장치 |
US6055231A (en) * | 1997-03-12 | 2000-04-25 | Interdigital Technology Corporation | Continuously adjusted-bandwidth discrete-time phase-locked loop |
JP3204925B2 (ja) * | 1997-06-18 | 2001-09-04 | 株式会社エヌ・ティ・ティ・ドコモ | Cdma通信システムにおける信号受信装置 |
FR2767238B1 (fr) | 1997-08-07 | 1999-10-01 | Alsthom Cge Alcatel | Dispositifs monocanal et multicanaux de demodulation coherente sans pilote, et ensemble correspondant de reception a plusieurs chemins de diversite |
JPH11186987A (ja) * | 1997-12-22 | 1999-07-09 | Matsushita Electric Ind Co Ltd | Cdma受信機位相追従装置 |
JPH11252614A (ja) * | 1998-03-05 | 1999-09-17 | Kokusai Electric Co Ltd | 通信システム及び基地局装置及び移動局装置 |
US6452948B1 (en) * | 1998-06-10 | 2002-09-17 | Sicom, Inc. | Method for baud-clock phase synchronization in a TDMA digital communications system and apparatus therefor |
US6181674B1 (en) * | 1998-09-30 | 2001-01-30 | Conexant Systems, Inc. | Method and apparatus for sharing transmit shaping filters among phase shifted signals |
US6364296B1 (en) * | 1998-11-24 | 2002-04-02 | Freudenberg-Nok General Partnership | Shear mount |
US6366604B1 (en) * | 1998-12-18 | 2002-04-02 | Philips Electric North America Corporation | Compensation for phase errors caused by clock jitter in a CDMA communication system |
JP3362009B2 (ja) * | 1999-03-01 | 2003-01-07 | シャープ株式会社 | スペクトル拡散通信装置 |
ES2178364T3 (es) * | 1999-06-24 | 2002-12-16 | Cit Alcatel | Transmision de diversidad en un sistema de radio movil. |
US6963602B1 (en) * | 2000-01-05 | 2005-11-08 | Advanced Micro Devices, Inc. | Digital correction method and system |
JP4495288B2 (ja) * | 2000-01-18 | 2010-06-30 | パナソニック株式会社 | 基地局装置、通信端末装置、及び無線通信方法 |
KR100959321B1 (ko) * | 2000-03-28 | 2010-05-26 | 인터디지탈 테크날러지 코포레이션 | 송신 전에 사전 회전을 이용하는 코드 분할 다중 접속 시스템 |
EP1269706B1 (en) * | 2000-04-04 | 2006-11-02 | Broadcom Corporation | Method to compensate for phase errors in multi-carrier signals |
JP4253445B2 (ja) * | 2001-03-16 | 2009-04-15 | 富士通株式会社 | 偏差補償装置 |
US7242722B2 (en) * | 2003-10-17 | 2007-07-10 | Motorola, Inc. | Method and apparatus for transmission and reception within an OFDM communication system |
US7804912B2 (en) * | 2004-09-23 | 2010-09-28 | Motorola, Inc. | Method and apparatus for encryption of over-the-air communications in a wireless communication system |
-
2001
- 2001-03-28 KR KR1020087030206A patent/KR100959321B1/ko not_active IP Right Cessation
- 2001-03-28 AT AT05002616T patent/ATE465556T1/de not_active IP Right Cessation
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06164657A (ja) * | 1992-11-16 | 1994-06-10 | N T T Idou Tsuushinmou Kk | 送受信装置 |
JPH0983484A (ja) * | 1995-09-11 | 1997-03-28 | Hitachi Ltd | Cdma方式移動通信システム |
JPH09102768A (ja) * | 1995-10-04 | 1997-04-15 | Matsushita Electric Ind Co Ltd | 移動体通信装置 |
WO1997019557A1 (en) * | 1995-11-21 | 1997-05-29 | Stanford Telecommunications, Inc. | Frequency drift correction in subscriber terminals |
WO1999059259A1 (en) * | 1998-05-14 | 1999-11-18 | Interdigital Technology Corporation | Multipath cdma receiver for reduced pilot |
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