CA2369391A1 - Cdma to packet switching interface for code division switching in a terrestrial wireless system - Google Patents

Cdma to packet switching interface for code division switching in a terrestrial wireless system Download PDF

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Publication number
CA2369391A1
CA2369391A1 CA002369391A CA2369391A CA2369391A1 CA 2369391 A1 CA2369391 A1 CA 2369391A1 CA 002369391 A CA002369391 A CA 002369391A CA 2369391 A CA2369391 A CA 2369391A CA 2369391 A1 CA2369391 A1 CA 2369391A1
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CA
Canada
Prior art keywords
code
payload data
spread
data signal
spreading
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002369391A
Other languages
French (fr)
Other versions
CA2369391C (en
Inventor
Diakoumis Parissis Gerakoulis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
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AT&T 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 AT&T Corp filed Critical AT&T Corp
Publication of CA2369391A1 publication Critical patent/CA2369391A1/en
Application granted granted Critical
Publication of CA2369391C publication Critical patent/CA2369391C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478Provisions for broadband connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1803Stop-and-wait protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5603Access techniques
    • H04L2012/5604Medium of transmission, e.g. fibre, cable, radio
    • H04L2012/5607Radio
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5672Multiplexing, e.g. coding, scrambling
    • H04L2012/5676Code Division Multiple Access [CDMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Abstract

A low-cost, flexible, high performance system and method comprises a means f or interfacing a code division wireless system to a fast packet-switched networ k for transmission over a core network to a designation terminal user via a destination access node and a destination access radio port. The method is for code television switching at an originating terminal, the originating terminal being located within a microport cell of a terrestrial wireless network at a given instant in time, where said network interfaces with an access radio port, and comprises the steps of spreading a transmission signa l by a PN-code assigned to an intended receiving port, inserting an identifier of a few bit s for identifying a user, spreading a payload data signal by an orthogonal code, spreading the orthogonal spread payload data signal by the PN-code associating the user with payload data, modulating the PN-code spread transmission signal and the twice-spread payload data signal, and forwarding the modulated PN-code spread transmission signal and the modulate d twice- spread payload data signal to an access radio port. The code division switching system at an originating terming is described, the originating terminal being located within a microport cell of a terrestrial wireless network at a given instant in time, where sai d network interfaces with an access radio port, comprises a first spreader for spreading a transmission signal by a PN-code assigned to an intended receiving port, a second spreader for spreading a payload data signal by an orthogonal code assigned to a receiving terminal user to which the payload data signal is directed, the payload data signal being further spread by the first spreader, a means for forwarding the PN-code spread transmission signal to an access rad io port and a means far forwarding the twice-spread transmission signal to an access radio port.
CA002369391A 2001-01-26 2002-01-25 Cdma to packet switching interface for code division switching in a terrestrial wireless system Expired - Fee Related CA2369391C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/770,858 2001-01-26
US09/770,858 US6912211B2 (en) 2001-01-26 2001-01-26 CDMA to packet-switching interface for code division switching in a terrestrial wireless system

Publications (2)

Publication Number Publication Date
CA2369391A1 true CA2369391A1 (en) 2002-07-26
CA2369391C CA2369391C (en) 2008-09-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002369391A Expired - Fee Related CA2369391C (en) 2001-01-26 2002-01-25 Cdma to packet switching interface for code division switching in a terrestrial wireless system

Country Status (2)

Country Link
US (4) US6912211B2 (en)
CA (1) CA2369391C (en)

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Also Published As

Publication number Publication date
US6912211B2 (en) 2005-06-28
US20050157692A1 (en) 2005-07-21
US20020101835A1 (en) 2002-08-01
US7936730B2 (en) 2011-05-03
US8532067B2 (en) 2013-09-10
US20110170421A1 (en) 2011-07-14
US7349375B2 (en) 2008-03-25
US20080219220A1 (en) 2008-09-11
CA2369391C (en) 2008-09-09

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Effective date: 20170125

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