[특허]Mobile station apparatus and base station apparatus

Mobile station apparatus and base station apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04J-003/16
출원번호	US-0329247 (1994-10-26)
우선권정보	JP-0068248 (1994-04-06)
발명자 / 주소	Ishi Haruhiko (Kawasaki JPX)
출원인 / 주소	Fujitsu Limited (Kanagawa JPX 03)
인용정보	피인용 횟수 : 24 인용 특허 : 3

초록 ▼

A mobile station apparatus and a base station apparatus for carrying out mobile communications according to TDMA technique and time alignment control are provided, wherein a guard time of a signal transmitted from a mobile station is reduced to improve the transmission efficiency, and also instantaneous disconnection of data signal at the time of channel switching is shortened. A measuring unit measures the received electric field strength of a radio wave from a base station, and a readout unit reads a time alignment value from a correlation table stored in a storage unit, based on the received electric field strength measured by the measuring unit. The correlation table is obtained beforehand through measurement or the like, taking account of a correlation found between the received electric field strength and time alignment value. A transmitting unit transmits data to the base station according to transmission timing adjusted based on the time alignment value read by the readout unit. The correlation table may alternatively be stored in the base station, or where no correlation table is used, the time alignment value may be calculated.

대표청구항 ▼

A mobile station apparatus for carrying out mobile communications with a base station according to TDMA technique, comprising: storage means for storing a correlation table indicating correlation between received electric field strength and time alignment value; measuring means for measuring a received electric field strength of a radio wave from the base station; readout means for reading a time alignment value from the correlation table stored in said storage means, based on the received electric field strength measured by said measuring means; and transmitting means for transmitting data to the base station according to transmission timing adjusted based on the time alignment value read by said readout means.

이 특허에 인용된 특허 (3)

Rees Idris J. M. (Reading GBX) Pickersgill Phillip (Wantage GBX), Base station transceiver diagnostic equipment.
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Sicher Alan (Garland TX), Method and apparatus for estimating initial time alignment in a cellular communications network.
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Dent Paul W. (Stehag SEX), Navigation assistance for call handling in mobile telephone systems.
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이 특허를 인용한 특허 (24)

Yonge, III, Lawrence Winston; Katar, Srinivas; Krishnam, Manjunath Anandarama, Channel reuse in communication systems.
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Frazer,Mark J.; van Heeswyk,Frank M.; Kschischang,Frank; Mantha,Ramesh; Snelgrove,W. Martin, Communication structure with channels configured responsive to reception quality.
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Smolentzov, André; Granberg, Olof Axel; Alexius, Staffan; Dovner, Lars, Communication system.
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Katar, Srinivas; Zhu, Hao; Yonge, III, Lawrence Winston; Krishnam, Manjunath Anandarama; Kostoff, II, Stanley J., Dynamic channel reuse in multi-access communication systems.
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James Scott Marin ; William K. Myers ; Donald G. Burt ; Michael L. Brobston ; Andrew Cilia, Local multipoint distribution service base station apparatus.
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Marin, James Scott; Myers, William K.; Burt, Donald G.; Brobston, Michael L.; Cilia, Andrew, Local multipoint distribution service base station apparatus.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Tamura, Motoshi; Miki, Mutsumaru; Okamoto, Akiko; Kusunose, Kenya; Uchikoshi, Akihiro; Igarashi, Daisuke; Yamagata, Katsuhiko; Sato, Takaaki; Hagiwara, Junichiro; Watanabe, Yasuyuki; Hamajima, Takuya; Hata, Masafumi; Ishikawa, Nobutaka; Yasuda, Yoshiyuki; Yunoki, Kazufumi; Uchiyama, Nobuhide, Method and system for mobile communications.
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Dillon Matthew James ; Nedelcu Bogdan Romulus, Method for extending the cell radius between a mobile station and a base station.
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Lucidarme,Thierry; Ben Rached,Nidham, Method of accessing resources of a radiocommunication system, mobile terminal and base station for the implementation of the method.
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Katsura, Eiji; Watanabe, Masatoshi; Kato, Osamu, Radio communication apparatus and method.
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Katsura, Eiji; Watanabe, Masatoshi; Kato, Osamu, Radio communication system and method therefor.
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Uebayashi Shinji,JPX ; Zhao Hui,JPX, Retransmission control method of CDMA mobile communication.
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Iwamoto,Hiroaki; Aoki,Nobuhisa; Nakamura,Takaharu, Spread communication system and mobile station thereof.
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Iwamoto,Hiroaki; Aoki,Nobuhisa; Nakamura,Takaharu, Spread communication system and mobile station thereof.
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Iwamoto,Hiroaki; Aoki,Nobuhisa; Nakamura,Takaharu, Spread communication system and mobile station thereof.
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Van Der Wal, Arnoud; Stoter, Jan; Van De Hee, Johan, Synchronisation of mobile equipment in time division duplex CDMA system.
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Pfahler, Jürgen; Jentsch, Peter, Time-alignment apparatus and method for time-aligning data frames of a plurality of channels in a telecommunication system.
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Fujita Noriyuki,JPX, Transmitting diversity circuit for TDMA radio unit.
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Hulyalkar Samir ; Ngo Chiu, Use of energy bursts for wireless networks.
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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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Mobile station apparatus and base station apparatus 원문보기