Procedimiento y aparato para la retroalimentación de calidad en enlace en una comunicación inalámbrica

    公开(公告)号:ES2383140T3

    公开(公告)日:2012-06-18

    申请号:ES07007459

    申请日:2002-01-23

    Applicant: QUALCOMM INC

    Abstract: Un aparato de estación remota que comprende: una unidad (204) de medición de la calidad para medir de manera iterativa la calidad de enlace de un enlace de comunicaciones y para generar una métrica de calidad; y un analizador diferencial (506) para determinar los cambios en la calidad del enlace y para generar un indicador diferencial (DIFF), en el que la métrica de calidad y el indicador diferencial son para ser transmitidos a una estación base y en el que, adicionalmente, la métrica de calidad y el indicador diferencia se usan para proporcionar un comando de control de potencia, y en el que la métrica de calidad y el indicador diferencial son para ser transmitidos a dos frecuencias distintas a la estación base.

    52.
    发明专利
    未知

    公开(公告)号:AT554544T

    公开(公告)日:2012-05-15

    申请号:AT07007459

    申请日:2002-01-23

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus for providing link quality feedback to a transmitter (32,34). In one embodiment, a periodic link quality message is transmitted on a gated channel, while continuous differential indicators are transmitted. Between quality messages, the differential indicators track the quality of the link. In one embodiment, a remote station includes a differential analyzer (212) to determine the change in successive channel quality measurements. The quality metric and the differential indicator are used for providing power control commands and rate control commands to teh base station. The quality metric and the differential indicator are transmitted at two different frequencies.

    54.
    发明专利
    未知

    公开(公告)号:AT526745T

    公开(公告)日:2011-10-15

    申请号:AT10179605

    申请日:2001-10-24

    Applicant: QUALCOMM INC

    Abstract: In a wireless communication system (50) a method for combination transmission of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers (56, 58, 60) indicating a target recipient of packet data. The message also identifies the transmission channel used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.

    Method and apparatus for multiplexing high-speed packet data transmission with voice/data transmission

    公开(公告)号:AU2010249181A1

    公开(公告)日:2010-12-23

    申请号:AU2010249181

    申请日:2010-12-06

    Applicant: QUALCOMM INC

    Abstract: Techniques for transmitting voice/data and packet data services such that packet data transmissions have less impact on voice/data transmissions. In one aspect, voice/data and packet data can be multiplexed within a transmission interval such that the available resources are efficiently utilized. In another aspect, the amount of variation in the total tansmit power from a base station is controlled to reduce degradation to transmissions from this and other base stations. In a specific method for concurrently transmitting a number of types of data, a first data type (e.g., voice, overhead, and some data) and a second data type are respectively processed in accordance with first and second signal processing schemes to generate first and second payloads, respectively. First and second partitions are then defined in a transmission interval.; The first and second payloads are time multiplexed into the first and second partitions, respectively, and the multiplexed payloads are transmitted.

    Combining acknowledgement and rate control

    公开(公告)号:AU2004302186C1

    公开(公告)日:2010-11-04

    申请号:AU2004302186

    申请日:2004-08-04

    Applicant: QUALCOMM INC

    Abstract: Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.

    METHOD FOR POWER CONTROL FOR MIXED VOICE AND DATA TRANSMISSION

    公开(公告)号:CA2435660C

    公开(公告)日:2010-10-05

    申请号:CA2435660

    申请日:2002-01-17

    Applicant: QUALCOMM INC

    Abstract: In a disclosed embodiment, a "voice noise power" is added to an aggregate voice power which is the total voice power used by all users in a cell. The voice noise power is transmitted in addition to the aggregate voice power in order to maintain the total of the aggregate voice power and voice noise power at a predetermined voice power limit. In one embodiment, the voice power limit can be increased or decreased to further improve control over power consumption during voice and data transmission. Further, in order to maintain the power consumed by data transmission at a desired level, data noise is transmitted after transmission of a data burst, or in between data bursts, by inserting a pre-determined amount of artificial data into the gaps in data transmission. The data noise is transmitted in addition to the data bursts in order to maintain the total power consumed during data transmission at a desired level.

    Method and apparatus for determining the necessity of transmission of a primary and a secondary pilot channel and improvement of chennel estimation

    公开(公告)号:AU2004247204C1

    公开(公告)日:2010-09-23

    申请号:AU2004247204

    申请日:2004-05-28

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel in the reverse (uplink) link. The primary and secondary pilot channels are used for decoding the data. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. It is determined whether the transmission of the primary pilot channel and the secondary pilot channel associated with the data channel is necessary based on comparing one of the data rate and the payload size of the channel in the reverse link to a predetermined value. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power level of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel.

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