[특허]Mobile communication system capable of transmitting and receiving a radio signal obtained by TDMA and CDMA without inter

Mobile communication system capable of transmitting and receiving a radio signal obtained by TDMA and CDMA without inter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04J-013/00
출원번호	US-0349885 (1994-12-06)
우선권정보	JP-0307635 (1993-12-08)
발명자 / 주소	Sato Toshifumi (Tokyo JPX)
출원인 / 주소	NEC Corporation (JPX 03)
인용정보	피인용 횟수 : 76 인용 특허 : 0

초록 ▼

In a communication system from a mobile station to a base station, a transmitter of the mobile station subjects a sequence of transmission signals to both of time division multiple access (TDMA) and code division multiple access (CDMA) to produce a radio output signal located in a time slot of a frame. The radio output signal obtained by the TDMA and CDMA is filtered or inversely spread to remove interference and noise from the radio output signal by the use of an adaptive filter which has taps controlled by an adaptive controller.

대표청구항 ▼

A mobile station for use in a radio communication system to produce a radio output signal, said mobile station comprising a transmitter operable in response to a sequence of transmission signals which is divisible into a succession of frames and which has a predetermined rate, said transmitter comprising: rate converting means supplied with said transmission signal sequence for successively rate converting said transmission signal sequence into a sequence of rate converted signals which has a second rate higher than said first rate and which lasts for a time slot shorter than each of said frames; spread code producing means producing a preselected spread code which is assigned to said transmitter and which is divided into a plurality of chips; code division multiple access means supplied with said preselected spread code and said rate converted signal sequence for carrying out code division multiple access operation of said rate converted signal sequence in accordance with said preselected spread code to produce a sequence of spread signals which is related to said preselected spread code; and means producing said spread signal sequence as said radio output signal by allocating said spread signal sequence to at least one specific time slot predetermined for said transmitter.

이 특허를 인용한 특허 (76)

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Proctor, Jr., James A., Antenna control system and method.
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Proctor, Jr., James A., Antenna control system and method.
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Masui,Hironari; Ohgoshi,Yasuo; Yano,Takashi; Doi,Nobukazu, CDMA mobile communication system and communication method.
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Masui, Hironari; Ohgoshi, Yasuo; Yano, Takashi; Doi, Nobukazu, CDMA mobile communications system and communication method.
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Kawakami Eiichiro,JPX ; Shimizu Satoru,JPX, CDMA receiver employing successive cancellation of training-signal interference.
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Sudo, Hiroaki, CDMA transmitting apparatus and CDMA receiving apparatus.
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Ishii, Nobuaki; Okada, Masaaki, Channel multiplexing method in mobile communication system.
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Rick Roland, Device and method for efficient decoding with time reversed data.
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Rick,Roland, Device and method for efficient decoding with time reversed data.
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Proctor, Jr., James A.; Foore, Lawrence R.; Gorsuch, Thomas E.; Amalfitano, Carlo, Dynamic bandwidth allocation for multiple access communications using buffer urgency factor.
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Gorsuch, Thomas E.; Amalfitiano, Carlo, Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link.
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Roy Joseph J. ; O'Scolai Cathal ; Hatim Baya ; Lakkis Ismail ; Safavi Saeid ; O'Shea Deirdre ; Bui Hoang Xuan ; Tayebi Masood K., Elastic store for wireless communication systems.
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Ogawa, Daisuke; Dateki, Takashi; Furukawa, Hideto, Equalizer device.
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James A. Proctor, Jr., Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system.
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Proctor, Jr.,James A., Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system.
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Uchida Yoshinori,JPX ; Matsumoto Shinji,JPX, Frequency sharing mobile communication system equipped with diversity receiver incorporated with shared wave canceller.
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Lozano, Angel, Method and apparatus for communicating heterogeneous data traffic.
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Bahrenburg, Stefan; Euscher, Christoph; Weber, Tobias; Baier, Paul Walter; Mayer, J?rgen; Schlee, Johannes, Method and radio station for data transmission.
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Bruckert Eugene J. ; Ling Fuyun, Method for determining weighting coefficients in a CDMA radio receiver.
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Proctor, Jr., James A., Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences.
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Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support sychronization.
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Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
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Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
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Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support synchronization.
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Uchida Yoshinori,JPX ; Matsumoto Shinji,JPX, Mobile communication system.
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Uchida Yoshinori,JPX ; Ishida Kenichi,JPX ; Kashiwagi Takashi,JPX, Mobile communication system using various multiple access methods.
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Uchida, Yoshinori; Fujio, Hiroyuki, Mobile communication system with down-link frame numbering.
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Uchida, Yoshinori; Matsumoto, Shinji, Mobile communication system with shared time slots and frequency channels.
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Kane Joji,JPX ; Yoshida Takashi,JPX ; Nomura Noboru,JPX, Mobile unit support system and mobile unit detection device and a system.
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Ooba, Hiroaki, Multi-antenna radio apparatus with simplified circuit structure.
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Proctor, Jr., James A., Multi-detection of heartbeat to reduce error probability.
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Proctor, Jr., James A., Multi-detection of heartbeat to reduce error probability.
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Proctor, Jr.,James A., Multi-detection of heartbeat to reduce error probability.
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Proctor, Jr., James A., Signaling for wireless communications.
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Bond James W. ; Hui Stefen ; Velez William Y., Simplified interference suppressor.
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Saito Naritoshi,JPX, Spread spectrum radio communication system.
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Proctor, Jr.,James A., System and method for controlling signal strength over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
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Proctor, Jr., James A., Transmittal of heartbeat signal at a lower level than heartbeat request.
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Proctor, Jr.,James A., Transmittal of heartbeat signal at a lower level than heartbeat request.
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Ranta, Pekka; Ylitalo, Juha, Upgrading of resources in a telecommunications network.
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Proctor, Jr., James A., Use of correlation combination to achieve channel detection.
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Dag E:son .ANG.kerberg SE, Utilization of plural multiple access types for mobile telecommunications.
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O'Scolai, Cathal; Hatim, Baya; Roy, Joseph J.; Safavi, Saeid; Lakkis, Ismail; Bui, Hoang Xuan; O'Shea, Deirdre; Tayebi, Masood K., Wireless T/E transceiver frame and signaling controller.
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O'Scolai,Cathal; Hatim,Baya; Roy,Joseph J.; Safavi,Saeid; Lakkis,Ismail; Bui,Hoang Xuan; O'Shea,Deirdre; Tayebi,Masood K., Wireless T/E transceiver frame and signaling controller.
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Haugli Hans-Christian,CAX ; Seed William Robert,CAX, Wireless packet data distributed communications system.
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Haugli, Hans Christian; Seed, William Robert, Wireless packet data distributed communications system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Mobile communication system capable of transmitting and receiving a radio signal obtained by TDMA and CDMA without inter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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연합인증

Mobile communication system capable of transmitting and receiving a radio signal obtained by TDMA and CDMA without inter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허를 인용한 특허 (76)

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