BR0210945A - Método e equipamento para compartilhamento de tempo de código de canalização em um sistema de comunicação cdma - Google Patents

Método e equipamento para compartilhamento de tempo de código de canalização em um sistema de comunicação cdma

Info

Publication number
BR0210945A
BR0210945A BR0210945-0A BR0210945A BR0210945A BR 0210945 A BR0210945 A BR 0210945A BR 0210945 A BR0210945 A BR 0210945A BR 0210945 A BR0210945 A BR 0210945A
Authority
BR
Brazil
Prior art keywords
compressed
frames
code
terminal
terminals
Prior art date
Application number
BR0210945-0A
Other languages
English (en)
Inventor
Alkinoos H Vayanos
Francesco Grilli
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0210945A publication Critical patent/BR0210945A/pt

Links

Classifications

    • 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
    • H04B7/2618—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid code-time division multiple access [CDMA-TDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • 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
    • H04J13/20—Allocation of orthogonal codes having an orthogonal variable spreading factor [OVSF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA COMPARTILHAMENTO DE TEMPO DE CóDIGO DE CANALIZAçãO EM UM SISTEMA DE COMUNICAçãO CDMA". Trata-se de técnicas para compartilhamento no tempo de um código de canalização comum entre vários terminais para transmissões no modo comprimido. A cada terminal é inicialmente atribuído um respectivo código de canalização empregado para canalizar dados transmitidos em frames não comprimidos para o terminal. Um código de canalização comum empregado para canalizar dados transmitidos em frames comprimidos para os terminais é também selecionado. Cada frame comprimido inclui uma ou mais transmissões comprimidas e todo ou uma parte de um intervalo de transmissão. Os frames comprimidos para os terminais são programados de modo que as transmissões comprimidas para os frames comprimidos não se superponham. Em seguida, frames não comprimidos para cada terminal são canalizados com o código de canalização atribuído ao terminal, e frames comprimidos para os terminais são canalizados com o código de canalização comum. Os frames comprimidos podem ser programados para serem (1) não superpostos em seus limites de frame, (2) não superpostos com relação às transmissões comprimidas, e/ou (3) entrelaçados.
BR0210945-0A 2001-07-09 2002-07-09 Método e equipamento para compartilhamento de tempo de código de canalização em um sistema de comunicação cdma BR0210945A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/901,921 US6785250B2 (en) 2001-07-09 2001-07-09 Method and apparatus for time-sharing channelization code in a CDMA communication system
PCT/US2002/021782 WO2003007647A1 (en) 2001-07-09 2002-07-09 Method and apparatus for time-sharing channelization code in a cdma communication system

Publications (1)

Publication Number Publication Date
BR0210945A true BR0210945A (pt) 2004-08-31

Family

ID=25415063

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0210945-0A BR0210945A (pt) 2001-07-09 2002-07-09 Método e equipamento para compartilhamento de tempo de código de canalização em um sistema de comunicação cdma

Country Status (9)

Country Link
US (2) US6785250B2 (pt)
EP (1) EP1405542A1 (pt)
JP (1) JP4278512B2 (pt)
KR (1) KR100920407B1 (pt)
CN (1) CN1247044C (pt)
BR (1) BR0210945A (pt)
HK (1) HK1068759A1 (pt)
TW (1) TW580805B (pt)
WO (1) WO2003007647A1 (pt)

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Also Published As

Publication number Publication date
KR100920407B1 (ko) 2009-10-07
EP1405542A1 (en) 2004-04-07
US20030026235A1 (en) 2003-02-06
CN1247044C (zh) 2006-03-22
JP2004535735A (ja) 2004-11-25
HK1068759A1 (en) 2005-04-29
US7599336B2 (en) 2009-10-06
JP4278512B2 (ja) 2009-06-17
US20050025096A1 (en) 2005-02-03
CN1554206A (zh) 2004-12-08
WO2003007647A1 (en) 2003-01-23
US6785250B2 (en) 2004-08-31
TW580805B (en) 2004-03-21
KR20040017282A (ko) 2004-02-26

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2156 DE 02/05/2012.

B15K Others concerning applications: alteration of classification

Ipc: H04B 7/26 (2006.01), H04J 13/00 (2011.01), H04J 13