KR960706234A - Dual-Mode Wireless Unit with Two Spread-Spectrum Frequency Bands - Google Patents

Dual-Mode Wireless Unit with Two Spread-Spectrum Frequency Bands

Info

Publication number
KR960706234A
KR960706234A KR1019960702229A KR19960702229A KR960706234A KR 960706234 A KR960706234 A KR 960706234A KR 1019960702229 A KR1019960702229 A KR 1019960702229A KR 19960702229 A KR19960702229 A KR 19960702229A KR 960706234 A KR960706234 A KR 960706234A
Authority
KR
South Korea
Prior art keywords
frequency bands
dual
spread
wireless unit
mode wireless
Prior art date
Application number
KR1019960702229A
Other languages
Korean (ko)
Inventor
로버트 씨. 딕슨
제르리 에스 반더플
Original Assignee
에블린 콜드파인
옴니포인트 코포레이션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 에블린 콜드파인, 옴니포인트 코포레이션 filed Critical 에블린 콜드파인
Publication of KR960706234A publication Critical patent/KR960706234A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2634—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

본 발명은 두 개의 작동 주파수 밴드(102, 104)를 지원하기 위해 단일의 비교적 협소한 합성기를 사용하는 이중 밴드 스펙트럼 확산 변조기(101,103,105)의 제공한다, 낮은 주파수 밴드에서 합성기는 고측 주입 모드에서 작동하고 높은 주파수 범위에서는 합성기는 하측 주입 모드에서 작동한다. 양호한 실시예에서 낮은 주파수 범위는 1850에서 1990 메가헤르츠의 범위를 갖고 높은 주파수 범위는 2400에서 2483.5 메가헤르츠의 범위를 갖는다.The present invention provides a dual band spectral spreading modulator (101, 103, 105) that uses a single relatively narrow synthesizer to support two operating frequency bands (102, 104). In the low frequency band, the synthesizer operates in a high side injection mode and In the high frequency range, the synthesizer operates in lower injection mode. In a preferred embodiment the low frequency range is in the range of 1850 to 1990 megahertz and the high frequency range is in the range of 2400 to 2483.5 MHz.

Description

두개의 스펙트럼 확산 주파수 밴드를 이중 모드 와이어리스 유닛(Dual-Mode Wireless Unit with Two spread-Spectrum Frequency Bands)Dual-Mode Wireless Unit with Two spread-Spectrum Frequency Bands

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 두개의 주파수 밴드를 갖는 이중 모드 스펙트럼 확산 변조기를 도시한다. 제2도는 프로그램 가능한 주파수 발생기를 도시한다.1 shows a dual mode spread spectrum modulator with two frequency bands. 2 shows a programmable frequency generator.

Claims (2)

단일 주파수 합성기를 구비하고 다수의 디스조인트(disjoint) 출력 주파수 밴드에서 작동하는 스펙트럼 변조기.A spectral modulator with a single frequency synthesizer and operating in multiple disjoint output frequency bands. 주파수 합성기, 상기 주파수 합성기에 결합된 승산기, 및 상기 승산기에 결합된 이전 인코더를 포함하는 것을 특징으로 하는 스펙트럼 확산 변조기.A frequency synthesizer, a multiplier coupled to the frequency synthesizer, and a previous encoder coupled to the multiplier. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960702229A 1993-11-01 1994-10-31 Dual-Mode Wireless Unit with Two Spread-Spectrum Frequency Bands KR960706234A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14649293A 1993-11-01 1993-11-01
US08/146,492 1993-11-01
PCT/US1994/012464 WO1995012925A1 (en) 1993-11-01 1994-10-31 Dual-mode wireless unit with two spread-spectrum frequency bands

Publications (1)

Publication Number Publication Date
KR960706234A true KR960706234A (en) 1996-11-08

Family

ID=22517619

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960702229A KR960706234A (en) 1993-11-01 1994-10-31 Dual-Mode Wireless Unit with Two Spread-Spectrum Frequency Bands

Country Status (6)

Country Link
EP (1) EP0727112A4 (en)
JP (1) JP3692140B2 (en)
KR (1) KR960706234A (en)
CA (1) CA2175085A1 (en)
IL (1) IL111471A (en)
WO (1) WO1995012925A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL114924A (en) * 1994-08-18 2000-02-17 Omnipoint Corp Multi-land multi-mode communication system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5537002A (en) * 1978-08-24 1980-03-14 Fujitsu Ltd Fs modulation system
US4435821A (en) * 1981-03-24 1984-03-06 Nippon Electric Co., Ltd. Receiver in a frequency hopping communication system
DE3627045A1 (en) * 1986-08-09 1988-05-11 Quante Fernmeldetechnik Gmbh Alarm system
US4979170A (en) * 1988-01-19 1990-12-18 Qualcomm, Inc. Alternating sequential half duplex communication system
US5079768A (en) * 1990-03-23 1992-01-07 Metricom, Inc. Method for frequency sharing in frequency hopping communications network
AU642571B2 (en) * 1991-01-21 1993-10-21 Sony Corporation Spread spectrum signal receiving apparatus
CA2102914A1 (en) * 1991-05-13 1992-11-26 Robert C. Dixon Dual mode transmitter and receiver

Also Published As

Publication number Publication date
EP0727112A4 (en) 1998-01-21
JPH09504669A (en) 1997-05-06
CA2175085A1 (en) 1995-05-11
IL111471A (en) 1998-06-15
IL111471A0 (en) 1994-12-29
EP0727112A1 (en) 1996-08-21
WO1995012925A1 (en) 1995-05-11
JP3692140B2 (en) 2005-09-07

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Legal Events

Date Code Title Description
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid