[특허]Mobile radio communication system

[미국특허] Mobile radio communication system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/26 H04J-003/16
출원번호	US-0727583 (1991-07-09)
우선권정보	JP-0184609 (1990-07-12)
발명자 / 주소	Ito Koichi (Tokyo JPX) Umemoto Yuji (Tokyo JPX) Tanaka Masayuki (Tokyo JPX)
출원인 / 주소	Kabushiki Kaisha Toshiba (Kawasaki JPX 03)
인용정보	피인용 횟수 : 44 인용 특허 : 0

초록 ▼

A mobile radio communication system of this invention includes a plurality of base stations connected to a network through wire lines, respectively, and a plurality of mobile stations respectively connected to the base stations through radio channels. A plurality of radio frequencies are shared by the base and mobile stations. At least one of transmission signals having these radio frequencies is arranged as a time frame constituted by a plurality of time-divisionally multiplexed time slots. At least either of the base and mobile stations includes a use state determining section for determining the use states of each of the radio frequencies and each of the time slots on the basis of a received wave, a radio channel determining section, and a radio channel establishing section, which are arranged as function programs of software. On the basis of a determination result provided by the use state determining section, a radio frequency and a time slot for connecting the base and mobile stations by radio are determined, and a radio channel based on the determined radio frequency and time slot is established between the base and mobile stations.

대표청구항 ▼

A mobile radio communication system, comprising: a wire network of telephones connected to each other through wire lines; at least one mobile radio communication apparatus; a base station connected to said wire network through a wire line and connectable to said mobile radio communication apparatus over channels of control radio frequencies each having a frame format including at least one reception time slot and one transmission time slot, said base station including means for periodically transmitting frame synchronization information to said mobile radio communication apparatus, wherein said mobile radio communication apparatus comprises: a power supply; an antenna for transmitting signals and for receiving signals at the control radio frequencies; a receiver for frequency converting signals received at said antenna; selecting means for selecting a control radio frequency; means responsive to received frame synchronization information for determining positions of time slots of the selected control radio frequency; means for setting a reception interval during a portion of one of the time slots of the selected control radio frequency; and a control circuit for setting a reception mode during the reception interval during which said receiver is powered by said power supply and a wait mode during which said receiver is not powered by said power supply.

이 특허를 인용한 특허 (44) 인용/피인용 타임라인 분석

Thompson Jonathan A.,GBX ; Lamkin Richard M.,GBX, Allocating channels for a wireless link between a central terminal and a subscriber terminal of a wireless telecommunications system.
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Sato Toshifumi,JPX, CDMA transceiver used in mobile communication system.
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Dent Paul W., Code-reuse partitioning systems and methods for cellular radiotelephone systems.
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Ketseoglou Thomas J. ; Dixon Robert C. ; Masenten Wesley, Coexisting communication systems.
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Sugita, Takehiro; Sugaya, Shigeru, Communication control method and transmission unit.
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Jensen Ryan N. ; Lindsay Charles L. ; Williams Claude M., Communication protocol for spread spectrum wireless communication system.
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Wei, Yongbin; Malladi, Durga Prasad; Blanz, Josef, Communication receiver with an adaptive equalizer.
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Anderson Gary B. ; Gavette Sherman ; Lindsay Charles L. ; Jensen Ryan N., Communication system and method.
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Scott Logan ; Williams Claude M., Cyclic time hopping in time division multiple access communication system.
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Logan Scott, Efficient communication system using time division multiplexing and timing adjustment control.
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Scott Logan, Efficient communication system using time division multiplexing and timing adjustment control.
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Scott Logan (Breckenridge CO), Efficient frequency division duplex communication system with interleaved format and timing adjustment control.
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Scott Logan, Efficient time division duplex communication system with interleaved format and timing adjustment control.
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Miyashita, Shinichiro, Electric field detecting method.
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Petranovich James E., Frame structure having non-symmetrical slot assignments for mobile communications.
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Makowski Pierre,FRX, Information transmission system comprising at least a base station and a satellite station, and station forming part of.
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Thro Stuart W. ; Shaughnessy Mark L. ; Kotzin Michael D., Infrastructure transceiver and method for configuration based on location information.
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Anderson, Gary B.; Petch, Bryan K.; Peterson, Peter O.; Jensen, Ryan N.; Gavette, Sherman, Method and Apparatus for wireless spread spectrum communication with preamble processing period.
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Dixon Robert C. ; Vanderpool Jeffrey S., Method and apparatus for establishing spread spectrum communication.
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Gardner Steven H. ; Gilbert Sheldon L. ; Hardin Carl Thomas ; Petranovich James E., Method and apparatus for frequency reuse in cellular communication systems.
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Anderson Gary B. ; Peterson Peter O., Method and system for data link expansion or contraction using spread spectrum TDMA communication.
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Kockmann,J체rgen; Sydon,Uwe, Method and system for logging on a mobile unit at a fixed station.
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Park Su-Won,KRX ; Jeong Joong-Ho,KRX, Method for connecting mobile stations to base station in radio communication system.
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Raith Alex Krister ; Diachina John, Method for paging mobile stations.
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Robinson William Niel (Farnham GB2), Multichannel random access communications system.
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Cherpantier Corinne,FRX, Multilayer cellular mobile radio network with optimized frequency re-use plan, and associated method.
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Anderson, Gary B.; Jensen, Ryan N.; Petch, Bryan K.; Peterson, Peter O., PCS pocket phone/microcell communication over-air protocol.
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Haar, Helmut; Bischof, Kurt; Scharke, Heiko, RFID transponder.
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Karl 0rjan Eriksson SE, Radio link network and a method for transferring additional services in a radio link network.
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Smith Douglas G. ; Dixon Robert C., Spread spectrum communication system using DECT protocol.
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Smith, Douglas G.; Dixon, Robert C., Spread spectrum communication system using DECT protocol.
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Vanderpool Jeffrey S., Spread spectrum wireless telephone system.
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Malladi, Durga Prasad; Blanz, Josef J.; Wei, Yongbin, Systems and methods for improving channel estimation.
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Malladi, Durga Prasad; Blanz, Josef; Wei, Yongbin, Systems and methods for improving channel estimation.
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Dixon Robert C., Three cell wireless communication system.
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Dixon Robert C. (Palmer Lake CO), Three-cell wireless communication system.
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Logan Scott, Timing adjustment control for efficient time division duplex communication.
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Scott Logan, Timing adjustment control for efficient time division duplex communication.
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Scott Logan, Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication.
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Dixon,Robert C., Wireless cellular communication system.
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Anderson Gary B. ; Jensen Ryan N. ; Petch Bryan K. ; Peterson Peter O., Wireless communication method and system.
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Sugaya, Shigeru, Wireless communication method, wireless communication system, and wireless communication apparatus.
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Anderson Gary B. ; Petch Bryan K. ; Peterson Peter O. ; Jensen Ryan N. ; Gavette Sherman, Wireless communication system and method.
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Jackson Allen ; Hochman David ; Sikand Parminder ; Hadar Rami ; Klein Jay ; Arditi Shmuel,ILX ; Bachinski Shmuel,ILX, Wireless communications system and method having dynamic reallocation of communication frequencies.
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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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[미국특허] Mobile radio communication system 원문보기