BR9809335A - Formatos de sinal, de preâmbulo e de campo de dados para utilização na transmissão de uma solicitação de acesso aleatório num sistema de comunicações móveis, e, processo e aparelho para utilização na criação de um pacote de acesso aleatório num sistema de comunicações móveis - Google Patents

Formatos de sinal, de preâmbulo e de campo de dados para utilização na transmissão de uma solicitação de acesso aleatório num sistema de comunicações móveis, e, processo e aparelho para utilização na criação de um pacote de acesso aleatório num sistema de comunicações móveis

Info

Publication number
BR9809335A
BR9809335A BR9809335-5A BR9809335A BR9809335A BR 9809335 A BR9809335 A BR 9809335A BR 9809335 A BR9809335 A BR 9809335A BR 9809335 A BR9809335 A BR 9809335A
Authority
BR
Brazil
Prior art keywords
random access
preamble
data field
package
communications system
Prior art date
Application number
BR9809335-5A
Other languages
English (en)
Other versions
BR9809335B1 (pt
Inventor
Riaz Esmailzadeh
Maria Gustafsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9809335A publication Critical patent/BR9809335A/pt
Publication of BR9809335B1 publication Critical patent/BR9809335B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/102—Combining codes
    • H04J13/107—Combining codes by concatenation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H04J13/0029—Gold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H04J13/0033—Kasami
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

"FORMATOS DE SINAL, DE PREâMBULO E DE CAMPO DE DADOS PARA UTILIZAçãO NA TRANSMISSãO DE UMA SOLICITAçãO DE ACESSO ALEATóRIO NUM SISTEMA DE COMUNICAçõES MóVEIS, E, PROCESSO E APARELHO PARA UTILIZAçãO NA CRIAçãO DE UM PACOTE DE ACESSO ALEATóRIO NUM SISTEMA DE COMUNICAçõES MóVEIS" é revelado um processo que atribui para cada setor numa célula um código de dispersão de preâmbulo único (106) e um código longo único (116) que é concatenado com um código curto associado com uma assinatura (112) para dispersar os dados no campo de dados (120). O período selecionado para o código longo (116) pode ter uma duração relativamente longa (por exemplo, com uma extensão de até mesmo horas ou dias). As larguras dos intervalos de tempo de transmissão são definidas para serem idênticas à extensão dos preâmbulos (108). Conseq³entemente, as solicitações de acesso aleatório da estação móvel (20,22,24) podem ser temporizadas para terem início no começo dos intervalos, e serem detectadas durante os períodos de preâmbulo pelo filtro comparativo no receptor de acesso aleatório da estação de base. O campo de dados (120) da solicitação de acesso aleatório da estação móvel (20,22,24) é transmitido nos intervalos subsequentes aos preâmbulo (108) e recebido pelo receptor de captação na estação de base. Contudo, subseq³ente ao período de preâmbulo, o filtro comparativo é ainda capacitado para receber os preâmbulos de outras solicitações de acesso randómico. Assim, o filtro comparativo pode ser utilizado continuamente e mais eficientemente, e um número significativamente maior de solicitações de acesso randómico pode ser processado em comparação com esquemas de acesso randómico anteriores. Assim, o rendimento e eficiência das comunicações de um sistema de acesso randómico usando o presente processo são substancialmente maiores que o rendimento e eficiência dos sistema de acesso randómico anteriores. Adicionalmente, o comprimento do campo de dados não é restrito. O processo de dispersão concatenada da parte de campo de dados do pacote de acesso randómico permite que um usuário gere um pacote que é tão grande quanto o desejado. Além disso, há pouco perigo do pacote resultante colidir com outros pacotes de solicitação de acesso randómico.
BRPI9809335-5B1A 1997-04-30 1998-04-24 "processo e aparelho para utilizaÇço na criaÇço de um pacote de acesso aleatàrio num sistema de comunicaÇÕes màveis". BR9809335B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/847,655 US6163533A (en) 1997-04-30 1997-04-30 Random access in a mobile telecommunications system
PCT/SE1998/000751 WO1998049857A1 (en) 1997-04-30 1998-04-24 Random access in a mobile telecommunications system

Publications (2)

Publication Number Publication Date
BR9809335A true BR9809335A (pt) 2000-07-04
BR9809335B1 BR9809335B1 (pt) 2013-08-27

Family

ID=25301168

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9809335-5B1A BR9809335B1 (pt) 1997-04-30 1998-04-24 "processo e aparelho para utilizaÇço na criaÇço de um pacote de acesso aleatàrio num sistema de comunicaÇÕes màveis".

Country Status (14)

Country Link
US (1) US6163533A (pt)
EP (2) EP0979585B1 (pt)
JP (1) JP3393144B2 (pt)
KR (1) KR100524523B1 (pt)
CN (1) CN1112078C (pt)
AR (1) AR012620A1 (pt)
AU (1) AU745529B2 (pt)
BR (1) BR9809335B1 (pt)
CA (1) CA2288004C (pt)
DE (1) DE69835147T2 (pt)
ES (1) ES2270514T3 (pt)
RU (1) RU2204220C2 (pt)
TW (1) TW405312B (pt)
WO (1) WO1998049857A1 (pt)

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AU7458798A (en) 1998-11-24
EP1345464A2 (en) 2003-09-17
BR9809335B1 (pt) 2013-08-27
WO1998049857A1 (en) 1998-11-05
CA2288004C (en) 2010-04-13
EP1345464A3 (en) 2006-08-09
JP3393144B2 (ja) 2003-04-07
DE69835147D1 (de) 2006-08-17
AU745529B2 (en) 2002-03-21
JP2001522557A (ja) 2001-11-13
ES2270514T3 (es) 2007-04-01
TW405312B (en) 2000-09-11
RU2204220C2 (ru) 2003-05-10
CN1112078C (zh) 2003-06-18
CN1254487A (zh) 2000-05-24
KR20010020279A (ko) 2001-03-15
US6163533A (en) 2000-12-19
DE69835147T2 (de) 2007-05-31
AR012620A1 (es) 2000-11-08
EP0979585B1 (en) 2006-07-05
CA2288004A1 (en) 1998-11-05
EP0979585A1 (en) 2000-02-16

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