IL111471A0 - 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
IL111471A0
IL111471A0 IL11147194A IL11147194A IL111471A0 IL 111471 A0 IL111471 A0 IL 111471A0 IL 11147194 A IL11147194 A IL 11147194A IL 11147194 A IL11147194 A IL 11147194A IL 111471 A0 IL111471 A0 IL 111471A0
Authority
IL
Israel
Prior art keywords
dual
spread
frequency bands
wireless unit
mode wireless
Prior art date
Application number
IL11147194A
Other versions
IL111471A (en
Original Assignee
Omnipoint Corp
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 Omnipoint Corp filed Critical Omnipoint Corp
Publication of IL111471A0 publication Critical patent/IL111471A0/en
Publication of IL111471A publication Critical patent/IL111471A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • 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
    • 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)
IL111471A 1993-11-01 1994-10-31 Dual-mode wireless unit with two spread-spectrum frequency bands IL111471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14649293A 1993-11-01 1993-11-01

Publications (2)

Publication Number Publication Date
IL111471A0 true IL111471A0 (en) 1994-12-29
IL111471A IL111471A (en) 1998-06-15

Family

ID=22517619

Family Applications (1)

Application Number Title Priority Date Filing Date
IL111471A IL111471A (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
KR960706234A (en) 1996-11-08
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
FF Patent granted
KB Patent renewed
KB Patent renewed
HP Change in proprietorship
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees