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    METODO Y APARATO PARA LA SELECCION DEL ESQUEMA DE TRANSMISION EN BASE A LAS CONDICIONES DEL CANAL Y LA LONGITUD DEL MENSAJE.
    1.
    发明专利
    METODO Y APARATO PARA LA SELECCION DEL ESQUEMA DE TRANSMISION EN BASE A LAS CONDICIONES DEL CANAL Y LA LONGITUD DEL MENSAJE. 未知

    公开(公告)号：ES2320648T3

    公开(公告)日：2009-05-27

    申请号：ES03763627

    申请日：2003-05-19

    Applicant: MOTOROLA INC

    Inventor： MOLKDAR DAVOOD ,  FEATHERSTONE WALTER

    IPC: H04L1/00 ,  H04L1/18 ,  H04Q7/22

    Abstract: Un método (300) de selección del esquema de transmisión para un mensaje que incluye datos de usuario, antes de la segmentación previa a su transmisión en un sistema de comunicación que comunica datos mediante el uso de un protocolo de petición automática de repetición (ARQ, Automatic Repeat Request) y una pluralidad de esquemas de transmisión que tienen diferentes características de error, el método comprendiendo las etapas de: determinar (301) al menos una característica de propagación de radio para un dispositivo comunicación; determinar (303) un tamaño de la información del mensaje, que incluye una longitud total de los datos de usuario antes de la segmentación previa a la transmisión del mensaje a ser comunicado desde, o hacia, el dispositivo de comunicación; y seleccionar (305) un esquema de transmisión a partir de la pluralidad de esquemas de transmisión, en respuesta a la característica determinada y al tamaño de la información del mensaje, caracterizado porque se espera que el esquema de transmisión seleccionado tenga una tasa de errores de comunicación que esté por debajo de un umbral de error para la característica determinada, el umbral de error dependiendo del tamaño de la información del mensaje.

    Determining a power relationship linking the transmit powers of user data and associated control data
    2.
    发明专利
    Determining a power relationship linking the transmit powers of user data and associated control data 未知

    公开(公告)号：GB2408420A

    公开(公告)日：2005-05-25

    申请号：GB0327155

    申请日：2003-11-21

    Applicant: MOTOROLA INC

    Inventor： FEATHERSTONE WALTER ,  BURLEY SIMON ,  WALLINGTON JONATHAN

    IPC: H04B7/005

    Abstract: In a communication system where user data and associated control data are transmitted from one entity to another, a power relationship linking the transmit powers of the user data and associated control data is determined at least partly dependent on a received quality of the associated control data. For example, if the bit error rate (BER) of the received control data is found to be below a desired threshold, an increase in the control transmit power is required and a new power relationship (e.g. a different offset or ratio) is determined which enables the required increase in the control transmit power whilst maintaining the data transmit power at a level set by an outer power control loop. Conventionally, a set relationship is established between the data and control transmit powers and the transmit power of the data channel is optimised using inner and outer loop power control. However, in such systems the control power is not optimised as it merely follows the data power according to the set relationship. Implementation of the described method results in the ability to maintain the transmit power of the user data, (e.g. on a Dedicated Physical Data Channel (DPDCH) in UMTS), at an optimum power level set by a power control process, whilst ensuring that associated control data, (e.g. on a Dedicated Physical Control Channel (DPCH)), is also transmitted at an optimum power level. The invention ensures reception of the user data and control data with an acceptable error rate causing minimum interference to other users. New quality targets may also be generated for the power loop control processes.

    Communication method, system, and units
    4.
    发明专利
    Communication method, system, and units 未知

    公开(公告)号：GB2372677A

    公开(公告)日：2002-08-28

    申请号：GB0104515

    申请日：2001-02-23

    Applicant: MOTOROLA INC

    Inventor： O'NEILL RORIE ,  MOLKDAR DAVOOD ,  FEATHERSTONE WALTER

    IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18

    Abstract: A communication method for transmitting data over a radio link of a communication system. The method includes a first communication unit that codes data to be transmitted, interleaves the coded data and then transmits the interleaved coded data. A second data communication unit then decodes the only partially received interleaved coded data. When sufficient data has been decoded from the so far received data, the second unit sends a confirmation signal to the first unit, the first unit responding to the confirmation signal by ceasing transmission of the interleaved coded data. Further data may then be transmitted because the transmission of the first data has stopped. Preferably, the data transmitted in bursts, with a time gap between bursts. The communication system is preferably a mobile radio communication system with the first or second unit being a base station, the other unit being a mobile station. The system may also be one of, or a combination of: UMTS, GPRS, EGPRS. The system preferably supports a plurality of coding rates and the coded data includes coding rate identification data which may be transmitted in the first burst.

    COMMUNICATION SYSTEM, COMMUNICATION UNIT AND METHOD FOR INCREASING SYSTEM CAPACITY
    5.
    发明申请
    COMMUNICATION SYSTEM, COMMUNICATION UNIT AND METHOD FOR INCREASING SYSTEM CAPACITY 审中-公开
    通信系统，通信单元和增加系统容量的方法

    公开(公告)号：WO02076007A3

    公开(公告)日：2003-01-09

    申请号：PCT/EP0201155

    申请日：2002-02-04

    Applicant: MOTOROLA INC ,  O'NEIL RORIE ,  MOLKDAR DAVOOD ,  FEATHERSTONE WALTER

    Inventor： O'NEIL RORIE ,  MOLKDAR DAVOOD ,  FEATHERSTONE WALTER

    IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18

    CPC classification number: H04L1/1819 ,  H04L1/0025 ,  H04L1/0071 ,  H04L1/1664 ,  H04L1/1887

    Abstract: A first communication unit codes and interleaves data to be transmitted over a radio link thereby providinga plurality of bursts to be transmitted. The bursts are transmitted over the radio link. A second communication unit decodes the data so far received after receipt of each burst of data. On achieving sufficient decoding of the data on the basis of the bursts received so far, the second communication unit transmits a confirmation signal to the first communication unit, which responsive thereto ceases transmission of remaining bursts of the data to be transmitted. Thus fewer bursts need be transmitted. Use in cellular radio communication systems with multiple coding rates is described.

    Abstract translation: 第一通信单元通过无线电链路对要发送的数据进行编码和交织，从而提供要发送的多个突发。 突发通过无线电链路传输。 第二通信单元对接收到每个数据突发之后的数据进行解码。 在第二通信单元基于迄今接收到的脉冲串实现数据的充分解码时，向第一通信单元发送确认信号，该确认信号响应于此，停止要发送的数据的剩余脉冲串的发送。 因此需要传输更少的脉冲串。 描述了在具有多个编码速率的蜂窝无线电通信系统中的用途。

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