Método y aparato para comunicaciones facilitadas por repetidor

    公开(公告)号:ES2454194T3

    公开(公告)日:2014-04-09

    申请号:ES04757313

    申请日:2004-07-27

    Abstract: Un método para comunicaciones facilitadas por un repetidor, que comprende: en un sitio de base: determinar una necesidad de recibir una transmisión inalámbrica desde un transmisor que está actualmente dentro del alcance de comunicaciones inalámbricas del sitio de base que solicita la asignación de un recurso de comunicación; determinar de manera automática si asignar un recurso de repetidor inalámbrico para con ello intentar al menos aumentar una calidad de servicio para soportar la transmisión inalámbrica desde el transmisor; proporcionar una instrucción al recurso de repetidor inalámbrico que comprende información de identificación de canal para recibir la transmisión desde el transmisor y un parámetro de transmisión que esperar cuando se recibe la transmisión desde el transmisor; y proporcionar una instrucción al recurso de repetidor inalámbrico para hacer que el recurso de repetidor inalámbrico repita al menos porciones de la transmisión inalámbrica desde el transmisor, donde la instrucción comprende proporcionar al menos información identificativa relativa al transmisor.

    24.
    发明专利
    未知

    公开(公告)号:AT483294T

    公开(公告)日:2010-10-15

    申请号:AT02718928

    申请日:2002-02-07

    Applicant: MOTOROLA INC

    Abstract: A communication system includes a forward link from a base station to multiple mobile units, the forward link having multiple shared channels (SHCH's), multiple shared control channels (SHCCH's), and multiple dedicated pointer control channels (DPTRCH's), and utilizes HARQ error control for error detection and error correction. The mobile unit, when listening to the DPTRCH, uses a SHCCH pointed to by the DPTRCH to demodulate and decode data on the SHCH. Throughput problems may arise in the system when the mobile unit combines and decodes the wrong SHCH data, that is, SHCH data that is intended for a different mobile unit, or may incorrectly decodes SHCH data that is intended for the mobile unit. In order to improve the data throughput of the system, the systems employs a flush test and an energy detector test to prevent improperly decoded data blocks from corrupting properly decoded data blocks.

    25.
    发明专利
    未知

    公开(公告)号:DE60141819D1

    公开(公告)日:2010-05-27

    申请号:DE60141819

    申请日:2001-06-29

    Applicant: MOTOROLA INC

    Abstract: The invention relates to a group application for group formation and management, in particular in a wireless environment. The present invention provides a group application in which a membership list of a group is kept updated automatically by communications between the group applications of the group. The group application handles all the complexity involved in setting up a group and maintaining a membership list for the group, without user intervention. Advantageously, the group application is implemented as a software agent. The invention also relates to an electronic device having a group application or software agent of the invention loaded therein.

    A packet scheduler
    28.
    发明专利

    公开(公告)号:GB2358552A

    公开(公告)日:2001-07-25

    申请号:GB0001214

    申请日:2000-01-19

    Applicant: MOTOROLA INC

    Abstract: This invention relates to a packet scheduler and method therefor and in particular a scheduler for a Code Division Multiple Access cellular mobile communication system. In packet base systems it is important to schedule transmissions of packets carefully in order to maximise the capacity of the system. The scheduler has means (235) for maintaining a list of packets for a cluster of cells. A packet is selected from this list and processed in means (237) for calculating an increase in receive power level at a target base station and at other base stations caused by transmitting a packet. The results are fed to means (239) for scheduling packets to a base station so that only packets which do not result in an accumulated receive power level exceeding a maximum receive power level at a base station are scheduled. The scheduler is in particular appropriate for third generation mobile communication systems.

    29.
    发明专利
    未知

    公开(公告)号:DE69131503T2

    公开(公告)日:2000-03-23

    申请号:DE69131503

    申请日:1991-12-16

    Applicant: MOTOROLA INC

    Abstract: A transceiver compatible with both wide channel constant envelope 4 level FSK FM modulation and narrow channel pi /4 differential QPSK linear modulation allows compatible interaction between modified constant envelope and non-constant envelope transmitters. All Nyquist filtering occurs in the transmitters, and none in the receiver.

    30.
    发明专利
    未知

    公开(公告)号:DE69228376T2

    公开(公告)日:1999-09-23

    申请号:DE69228376

    申请日:1992-10-19

    Applicant: MOTOROLA INC

    Abstract: A method for measuring channel delay measures the delay for a message to propagate from a prime site (100, 400) to a remote site (200, 500) via the channel (300, 600). The prime site includes a clock for providing a first value, T1, based on the current time at the prime site. The remote site includes a clock for providing a second value, T2, based on the current time at the remote site. Both clocks are synchronized with a common timing source, such as a GPS satellite timing signal. Therefore, T2 equals T1. In one embodiment, the prime site determines T1, and simultaneously sends a message to the remote site via the channel, the message including T1. Upon receiving the message, the remote site simultaneously determines T2. The remote site decodes the message to determine T1, and then determines the delay based on the difference between T2 and T1.

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