[특허]Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit

Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/26
출원번호	US-0789737 (1991-11-08)
발명자 / 주소	Su Chun-Meng (Lafayette CA) Behtash Saman (Berkeley CA) Jarett Keith (Oakland CA)
출원인 / 주소	Teknekron Communications Systems, Inc. (Berkeley CA 02)
인용정보	피인용 횟수 : 37 인용 특허 : 0

초록 ▼

A method of establishing a wireless communication link between a base unit and a remote unit is disclosed. The base unit transmits periodically a sync signal in a first selected time period in a selected frequency channel. The remote unit scans for the clock signal. The remote unit transmits a first response signal encoded by a first code in the selected frequency channel in response to the detection of the clock signal. The first response signal is transmitted in a second selected time period, different from the first selected time period. The base unit transmits a first control signal which is encoded by said first code, in the selected frequency channel, in a third selected time period, which is different from the first and second selected time periods. The first control signal contains a second code to be used in the communication session between the base unit and the remote unit. The remote unit receives the first control signal in the third time period. The remote unit decodes the first control signal. Thereafter, communication in the selected frequency channel is accomplished between the base unit and the remote unit by the base unit transmitting an encoded data signal, encoded by the second code, in a fourth selected time period different from the first, second and third selected time periods, and by the remote unit transmitting an encoded data signal, encoded by the second code, in a fifth selected time period, which is different from the first, second, third and fourth time periods.

대표청구항 ▼

A method of establishing a wireless communication link between a base unit and a remote unit comprising: transmitting periodically a sync signal in a first selected time period in a selected frequency channel by the base unit; scanning for said sync signal by said remote unit; transmitting a first response signal encoded by a first code in said selected frequency channel by said remote unit in response to the detection of said sync signal, in a second selected time period, different from the first selected time period; transmitting a first control signal encoded by the first code by the base unit in said selected frequency channel, in a third selected time period, different from the first and second selected time periods, said first control signal containing a second code to be used in the communication session between the base unit and the remote unit; receiving said first control signal by the remote unit, in said third time period; decoding said first control signal by the remote unit; and communicating in said selected frequency channel between said base unit and said remote unit by transmitting an encoded data signal, encoded by said second code, by the base unit, in a fourth selected time period, different from the first, second, and third selected time periods and by transmitting another encoded data signal, encoded by said second code, by the remote unit in a fifth selected time period, different from said first, second, third and fourth time periods.

이 특허를 인용한 특허 (37)

Wong, Gabriel K.; Tsui, Po S., Apparatus for network communication system allowing for persistent request slots for network nodes as well as separate identification to be sent from nodes.
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Lomp, Gary R.; Ozluturk, Faith M.; Kowalski, John, Automatic power control system for a code division multiple access (CDMA) communications system.
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Donald L. Schilling, CDMA communications and geolocation system and method.
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Schilling Donald L., CDMA communications and geolocation system and method.
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Schilling Donald L. (Sands Point NY), CDMA communications and geolocation system and method.
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Gould Adam F. (San Diego CA) Robertson James R. (San Diego CA) Noneman John W. (Valley Center CA) Gelm John R. (San Diego CA), CDMA radiotelephone having optimized slotted mode and long code operation.
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Dent Paul W.,SEX, Cellular/satellite communications system with improved frequency re-use.
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Ozluturk, Fatih M.; Jacques, Alexander M.; Lomp, Gary R.; Kowalski, John, Code division multiple access (CDMA) communication system.
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Ayerst Douglas I. ; Carsello Stephen R. ; Glotzbach Warren P., Code division multiple access (CDMA) inbound messaging system utilizing re-use of sequences.
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Wong, Gabriel K.; Tui, Po S., Communication system allowing network nodes to efficiently establish communications with a controller.
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Wong, Gabriel K.; Tui, Po S., Communication system allowing node identification.
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Wong, Gabriel K.; Tsui, Po S., Communication system wherein a clocking signal from a controller, a request from a node, acknowledgement of the request, and data transferred from the node are all provided on different frequencies, enabling simultaneous transmission of these signals.
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Wong, Gabriel K.; Tsui, Po S., Communication system with a request by a single node made over one of two separate timeslots.
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Wong, Gabriel K.; Tsui, Po S., Communication system with map of information provided from controller to enable communication with nodes.
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Wakuda, Kensaku, Communication system, communication method, communication device, and program.
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Ciccone Joseph L. ; Kasturia Sanjay ; Nall David C. ; Ng Chu ; Padgett Jay E. ; Warwick Colin A., Cordless telephone arranged for operating with multiple portable units in a frequency hopping system.
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Fukuda Kunio,JPX, Cordless telephone system.
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Fomukong, Mundi; Chesney, Denzil Willoughby, Location reporting satellite paging system with optional blocking of location reporting.
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Fomukong, Mundi; Chesney, Denzil Willoughby, Location reporting satellite paging system with privacy feature.
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Tiedemann, Jr., Edward G.; Lin, Yu-Chuan; Jou, Yu-Cheun; Odenwalder, Joseph P., Method and apparatus for forward link rate scheduling.
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Tiedemann, Jr., Edward G.; Lin, Yu-Chuan; Jou, Yu-Cheun; Odenwalder, Joseph P., Method and apparatus for forward link rate scheduling.
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Ekl, Randy L.; Rotstein, Ron, Method for acknowledging messages in a communication system.
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Hui, Junhong; Hwang, Duck-Dong; Kim, Jae-Myeong; Yoo, Sang-Jo; Cho, Kyoung-Jin; Chung, Jae-Hak, Method for dynamic frequency selection and system supporting the same in a cognitive radio wireless communication system.
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Siira Mikko,JPX, Method for selecting a signal, and a cellular radio system.
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Hasegawa Hajime,JPX, Mobile communication system and method for performing communication control within a base station and a mobile station.
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Wong, Gabriel K.; Tsui, Po S., Network communication system wherein a node obtains resources for transmitting data by transmitting two reservation requests.
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Wong, Gabriel K.; Tsui, Po S., Network communication system with an alignment signal to allow a controller to provide messages to nodes and transmission of the messages over four independent frequencies.
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Wong, Gabriel K.; Tsui, Po S., Network communication system with nodes transmitting randomly generated information (RGI) and controllers transmitting a copy of the RGI for identification purposes.
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Schilling Donald L. ; Garodnick Joseph, Orthogonal spread spectrum system.
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Schilling, Donald L., Spread spectrum base station.
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Schilling,Donald L., Spread spectrum communication system and method using a reference signal and a plurality of message signals.
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Schilling,Donald L., Spread spectrum communications using a reference and a message signal system and method.
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Schilling, Donald L., Spread spectrum remote unit.
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Fomukong, Mundi; Chesney, Denzil Willoughby, Updating a mobile device's location.
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Carney Ronald R. ; Williams Terry L., Wideband wireless base-station making use of time division multiple-access bus to effect switchable connections to modulator/demodulator resources.
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Carney Ronald R. (916 Flower St. ; NW. Palm Bay FL 32907) Schmutz Thomas R. (1934 Glen Meadow Cir. Melbourne FL 32935) Williams Terry L. (204 Ash Ave. Melbourne Beach FL 32951), Wideband wireless basestation making use of time division multiple-access bus having selectable number of time slots and.
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Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit 원문보기

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Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit 원문보기

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