[특허]Radio communication system including SDL having transmission rate of relatively high speed

Radio communication system including SDL having transmission rate of relatively high speed 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/26
출원번호	US-0492728 (1995-06-20)
우선권정보	JP-0137621 (1994-06-20)
발명자 / 주소	Serizawa Mutsumu,JPX Nakajima Nobuyasu,JPX Ogura Koji,JPX Namekata Minoru,JPX Wakutsu Takashi,JPX Mukai Manabu,JPX
출원인 / 주소	Kabushiki Kaisha Toshiba, JPX
대리인 / 주소	Foley & Lardner
인용정보	피인용 횟수 : 83 인용 특허 : 0

초록 ▼

A large amount of user information is transmitted with good efficiency by means of a high-speed downlink by making transmission rates of an uplink circuit and a downlink asymmetrical. The radio communication system includes a plurality of base stations, a plurality of terminals, an uplink established between each of the base stations and each of the terminals for the purpose of radio transmission of prescribed information from a terminal to a base station, and a downlink circuit established between each of the terminals and each of the base station for the purpose of radio transmission of prescribed data from a base station to a terminal. This radio communication system has a low-speed transmitting means, provided at the terminal, which transmits a radio signal at a relatively low transmission rate to an above-noted base station via the above-noted uplink, a low-speed receiving means, provided at the base station, which receives a radio signal sent at a relatively low transmission rate from the terminal via the uplink, a high-speed transmitting means, provided at the base station, which transmits a radio signal at a relatively high transmission rate to an above-noted terminal via the above-noted downlink, and a high-speed receiving means, provided at the terminal, which receives a radio sent at a relatively high transmission rate from the base station via the downlink.

대표청구항 ▼

[ What is claimed is:] [1.] A radio communication system including a base station, a plurality of terminals, an uplink established between the base station and each of the terminals for the purpose of radio transmission of prescribed information from a terminal to a base station, and a downlink established between each of the terminals and the base station for the purpose of radio transmission of prescribed data from a base station to a terminal, said radio communication system comprising:a low-speed transmitting means, provided at said terminal, for transmitting a radio signal having a radio frequency in a relatively low frequency band at a relatively low transmission rate from said terminal to said base station via said uplink;a low-speed receiving means, provided at said base station, for receiving a radio signal of a relatively low frequency sent at a low transmission rate from said terminal to said base station via said uplink;a high-speed transmitting means, provided at said base station, for transmitting a radio signal having a radio frequency in a relatively high frequency band at a relatively high transmission rate from said base station to said terminal via said downlink; anda high-speed receiving means, provided at said terminal, for receiving a radio signal having a radio frequency in a relatively high frequency band at a relatively high transmission rate from said base station to said terminal via said downlink.

이 특허를 인용한 특허 (83)

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Serizawa, Mutsumu; Nakajima, Nobuyasu; Ogura, Koji; Namekata, Minoru; Wakutsu, Takashi; Mukai, Manabu, Radio communication system including SDL having transmission rate of relatively high speed.
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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

Radio communication system including SDL having transmission rate of relatively high speed 원문보기

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Radio communication system including SDL having transmission rate of relatively high speed 원문보기

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