ES2154652T3 - Esquema adaptable de control de acceso de medio para lan inalambrica. - Google Patents

Esquema adaptable de control de acceso de medio para lan inalambrica.

Info

Publication number
ES2154652T3
ES2154652T3 ES94105696T ES94105696T ES2154652T3 ES 2154652 T3 ES2154652 T3 ES 2154652T3 ES 94105696 T ES94105696 T ES 94105696T ES 94105696 T ES94105696 T ES 94105696T ES 2154652 T3 ES2154652 T3 ES 2154652T3
Authority
ES
Spain
Prior art keywords
period
remote stations
base station
periods
control
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.)
Expired - Lifetime
Application number
ES94105696T
Other languages
English (en)
Inventor
Hamid Ahmadi
David Frederick Bantz
Frederic Jacques Bauchot
Arvind Krishna
Maire Richard Orville La
Kadathur S Natarajan
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of ES2154652T3 publication Critical patent/ES2154652T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/02—Hybrid access techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

UN PROTOCOLO DE ACESO MEDIO (MAC) SE UTILIZA PARA ACCESO DE RADIO SIN HILO PARA UNA PLURALIDAD DE ESTACIONES REMOTAS A UNA ESTACION BASE SOBRE UN LAN: EL PROTOCOLO MAC ESTA BASADO EN UN ESQUEMA DE RESERVA PARA TRAFICO DE DATOS DE USUARIO Y UNA TECNICA DE ACCESO ALEATORIA PARA CONTROLA Y SEÑALIZAR EL TRAFICO. HAY UNA ESTRUCTURA MARCO FIJADA DIVISION DE TIEMPO EN LA QUE EL TIEMPO ESTA FRAGMENTADO, Y LOS FRAGMENTOS DE TIEMPO ESTAN AGRUPADOS EN MARCOS FIJOS QUE CONSISTEN EN SUBMARCOS DE DATOS Y CONTROL O PERIODOS. LA ESTRUCTURA DE MARCO FIJA CONSISTE EN TRES PERIODOS (A,B,C) JUNTO CON SUS CABEZAS RESPECTIVAS. EL PRIMER PERIODO, EL PERIODO A, ES EL CANAL DE SALIDA QUE SE USA EXCLUSIVAMENTE PARA TRANSFERENCIA DE DATOS DESDE LA ESTACION BASE A LAS ESTACIONES REMOTAS. EL SIGUIENTE PERIODO, EL PERIODO B ES EL CANAL DE SALIDA QUE SE USA PARA LA TRANSFERENCIA DE DATOS DE LIBRE CONTENCION DESDE LAS ESTACIONES REMOTAS A LA ESTACION BASE. LA DISTRIBUCION DE LOS FRAGMENTOS DE DATOS EN LOS PERIODOS A Y B SE LLEVA A CABO POR LA ESTACION DE BASE. EL ULTIMO PERIODO DEL MARCO, DESIGNADO COMO PERIODO C, ES EL CANAL DE CONTROL USADO PARA LA TRANSMISION DE SOLICITUDES DE RESERVA Y DATOS DE LAS ESTACIONES REMOTAS A LA ESTACION DE BASE EN UN MODO DE CONTENCION DE ACCESO ALEATORIO QUE USA UN PROTOCOLO ALOHA FRAGMENTADO. LA DURACION DE LOS TRES PERIODOS PUEDE SER VARIADO USANDO UNA TECNICA DE LIMITE MOVIL. LA ESTACION DE BASE EVALUA EL NUMERO DE ESTACIONES REMOTAS ACTIVAMENTE TRANSMISORAS QUE UTILIZAN UNA INFORMACION DE REALIMENTACION DESDE LAS ESTACIONES REMOTAS. ESTA ESTIMACION SE RADIODIFUNDE A LAS ESTACIONES REMOTAS CON SEÑALES DE CONTROL PARA CONTROLAR SUS TENTATIVAS DE TRANSMISION EN EL PERIODO C, PRODUCIENDO ASI UNA GRAN EFICACIA DE TRANSMISION.
ES94105696T 1993-04-19 1994-04-13 Esquema adaptable de control de acceso de medio para lan inalambrica. Expired - Lifetime ES2154652T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/049,052 US5384777A (en) 1993-04-19 1993-04-19 Adaptive medium access control scheme for wireless LAN

Publications (1)

Publication Number Publication Date
ES2154652T3 true ES2154652T3 (es) 2001-04-16

Family

ID=21957816

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94105696T Expired - Lifetime ES2154652T3 (es) 1993-04-19 1994-04-13 Esquema adaptable de control de acceso de medio para lan inalambrica.

Country Status (11)

Country Link
US (1) US5384777A (es)
EP (1) EP0621708B1 (es)
JP (1) JP2662181B2 (es)
KR (1) KR0138001B1 (es)
CN (1) CN1115820C (es)
AT (1) ATE199617T1 (es)
BR (1) BR9401518A (es)
CA (1) CA2115211C (es)
DE (1) DE69426788T2 (es)
ES (1) ES2154652T3 (es)
TW (1) TW240358B (es)

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EP0621708A3 (en) 1995-08-23
CA2115211A1 (en) 1994-10-20
US5384777A (en) 1995-01-24
JP2662181B2 (ja) 1997-10-08
KR0138001B1 (ko) 1998-07-01
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JPH0715433A (ja) 1995-01-17
CN1100857A (zh) 1995-03-29
EP0621708B1 (en) 2001-03-07
BR9401518A (pt) 1994-12-27
TW240358B (es) 1995-02-11
ATE199617T1 (de) 2001-03-15
DE69426788D1 (de) 2001-04-12
CN1115820C (zh) 2003-07-23
CA2115211C (en) 1997-09-23

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