SG47496A1 - Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system - Google Patents

Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system

Info

Publication number
SG47496A1
SG47496A1 SG1996002296A SG1996002296A SG47496A1 SG 47496 A1 SG47496 A1 SG 47496A1 SG 1996002296 A SG1996002296 A SG 1996002296A SG 1996002296 A SG1996002296 A SG 1996002296A SG 47496 A1 SG47496 A1 SG 47496A1
Authority
SG
Singapore
Prior art keywords
accommodating
spread spectrum
variable number
communication system
communication channels
Prior art date
Application number
SG1996002296A
Other languages
English (en)
Inventor
Eugene J Bruckert
David D Falconer
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of SG47496A1 publication Critical patent/SG47496A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
SG1996002296A 1991-03-13 1992-02-24 Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system SG47496A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66913491A 1991-03-13 1991-03-13

Publications (1)

Publication Number Publication Date
SG47496A1 true SG47496A1 (en) 1998-04-17

Family

ID=24685173

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996002296A SG47496A1 (en) 1991-03-13 1992-02-24 Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system

Country Status (8)

Country Link
EP (1) EP0533887B1 (fr)
JP (1) JP2601030B2 (fr)
KR (1) KR960000353B1 (fr)
CA (1) CA2077332C (fr)
DE (1) DE69227350T2 (fr)
IL (1) IL101099A (fr)
SG (1) SG47496A1 (fr)
WO (1) WO1992017012A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430759A (en) * 1992-08-20 1995-07-04 Nexus 1994 Limited Low-power frequency-hopped spread spectrum reverse paging system
US5335246A (en) * 1992-08-20 1994-08-02 Nexus Telecommunication Systems, Ltd. Pager with reverse paging facility
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5530452A (en) * 1993-10-21 1996-06-25 Nexus Telecommunication Systems Ltd. Method of synchronizing spread spectrum radio transmitters
MX9603336A (es) 1994-02-17 1997-05-31 Micrilor Inc Red de area local inalambrica de alto indice de datos.
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
JP3409628B2 (ja) * 1996-06-19 2003-05-26 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａ通信方法およびグループ拡散変調器
CA2463381C (fr) * 1997-05-14 2011-11-22 Qualcomm Incorporated Unite d'abonne et procede utile dans un systeme de telecommunications sans fil
WO1998059451A1 (fr) 1997-06-20 1998-12-30 Mitsubishi Denki Kabushiki Kaisha Procede et dispositif de transmission a debit variable
DE992120T1 (de) * 1997-06-23 2001-01-25 Micrilor, Inc. Drahtloses nachrichtenübertragungssystem zum senden und empfangen von daten mit erhöhter datenrate und zuverlässigkeit
IL121892A0 (en) * 1997-10-06 1998-03-10 Telescicom Ltd CDMA system
US6104709A (en) * 1998-07-17 2000-08-15 Motorola, Inc. Channel assignment within a broad-band communication system
US6483828B1 (en) * 1999-02-10 2002-11-19 Ericsson, Inc. System and method for coding in a telecommunications environment using orthogonal and near-orthogonal codes
EP3591851B1 (fr) * 2018-07-02 2024-09-04 Semtech Corporation Sauts de fréquence relative dans un réseau longue portée à faible puissance
EP3591852B1 (fr) * 2018-07-02 2022-01-12 Semtech Corporation Atténuation de collision dans un réseau étendu à faible puissance et à sauts de fréquence

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381314A (fr) * 1963-08-23 1964-12-14 Telecomm Radioelectriques & Te Procédés de synchronisation pour transmettre des signaux digitaux à travers des dispositifs de transmission non synchrone
US4052565A (en) * 1975-05-28 1977-10-04 Martin Marietta Corporation Walsh function signal scrambler
US4041391A (en) * 1975-12-30 1977-08-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Pseudo noise code and data transmission method and apparatus
FR2460050A1 (fr) * 1979-06-22 1981-01-16 Thomson Csf Systeme de transmission hyperfrequence de donnees numeriques
US4494238A (en) * 1982-06-30 1985-01-15 Motorola, Inc. Multiple channel data link system
US4685132A (en) * 1985-07-30 1987-08-04 Sperry Corporation Bent sequence code generator
FR2629931B1 (fr) * 1988-04-08 1991-01-25 Lmt Radio Professionelle Correlateur numerique asynchrone et demodulateurs comportant un tel correlateur
US4930140A (en) * 1989-01-13 1990-05-29 Agilis Corporation Code division multiplex system using selectable length spreading code sequences

Also Published As

Publication number Publication date
JPH05506765A (ja) 1993-09-30
CA2077332A1 (fr) 1992-09-14
KR960000353B1 (ko) 1996-01-05
EP0533887A1 (fr) 1993-03-31
WO1992017012A1 (fr) 1992-10-01
JP2601030B2 (ja) 1997-04-16
KR930701034A (ko) 1993-03-16
CA2077332C (fr) 1997-04-08
EP0533887B1 (fr) 1998-10-21
DE69227350D1 (de) 1998-11-26
DE69227350T2 (de) 1999-05-06
IL101099A (en) 1995-05-26
EP0533887A4 (en) 1994-09-14

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