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    CONTROL DE LA POTENCIA DE TRANSMISION DE ENLACES DE BAJADA.
    41.
    发明专利
    CONTROL DE LA POTENCIA DE TRANSMISION DE ENLACES DE BAJADA. 未知

    公开(公告)号：ES2305333T3

    公开(公告)日：2008-11-01

    申请号：ES02793828

    申请日：2002-10-25

    Applicant: QUALCOMM INC

    Inventor： MALLADI DURGA

    IPC: H04B7/00 ,  H04B7/185 ,  H04B7/204

    Abstract: Un procedimiento para controlar y para fijar la potencia de transmisión del enlace de bajada a un terminal de usuario (124) en un sistema de comunicaciones inalámbricos (100) que tenga una pluralidad de haces (204) con el fin de mantener un nivel de interferencia dentro de márgenes aceptables, caracterizado porque comprende los pasos de: (a) identificar la localización de un terminal de usuario (124) dentro de una región de cruce de haz o de una región central de haz de uno de la pluralidad de haces (204); y (b) fijar la potencia de transmisión del enlace de bajada en respuesta a la localización de terminal de usuario identificado, en donde la potencia de transmisión del enlace de bajada es mayor cuando el usuario está localizado en la región de cruce de haz en comparación con la región central de haz.

    VARIABLE CONTROL CHANNEL FOR A WIRELESS COMMUNICATION SYSTEM
    43.
    发明专利
    VARIABLE CONTROL CHANNEL FOR A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2658522A1

    公开(公告)日：2008-01-31

    申请号：CA2658522

    申请日：2007-07-24

    Applicant: QUALCOMM INC

    Inventor： WILLENEGGER SERGE ,  MALLADI DURGA

    IPC: H04W24/00 ,  H04W4/20 ,  H04W28/04 ,  H04W48/12 ,  H04W72/00 ,  H04W72/06 ,  H04W74/00

    Abstract: Techniques for sending control information on a variable control channel are described. Different structures for mapping control information to contr ol channel resources may be used depending on various factors such as operat ing configuration, the available resources for the control channel, the type (s) of control information being sent, the amount of control information bei ng sent for each type, whether or not data is being sent, etc. In one design , at least one type of control information being sent may be determined and may comprise channel quality indicator (CQI) information, acknowledgement (A CK) information, and/or other types of control information. A structure of t he control channel may be determined based on operating configuration (e.g., system configuration such as asymmetry of downlink and uplink allocations) and/or other factors. The at least one type of control information may be ma pped to the resources for the control channel based on the structure.

    Log-likelihood estimation based on channel estimation errors due to guard subbands
    45.
    发明专利
    Log-likelihood estimation based on channel estimation errors due to guard subbands 未知

    公开(公告)号：AU2005295128A1

    公开(公告)日：2006-04-20

    申请号：AU2005295128

    申请日：2005-10-12

    Applicant: QUALCOMM INC

    Inventor： DUNG DOAN ,  STAMOULIS ANASTASIOS ,  MALLADI DURGA

    IPC: H04L25/03

    Abstract: Techniques for performing data detection and decoding in a manner to account for guard subbands are described. A receiver obtains received pilot symbols for pilot subbands and received data symbols for data subbands. Channel estimates are derived based on the received pilot symbols with zeroed-out pilot subbands filled with zeros. Data detection is performed on the received data symbols with the channel estimates to obtain data symbol estimates. Estimates of noise and estimation errors due to the zeroed-out pilot subbands are derived. LLRs are then computed based on the data symbol estimates, the channel estimates, and the estimates of the noise and estimation errors. The LLRs are deinterleaved and decoded to obtain decoded data.

    Systems and methods for multiplexing control information onto a physical data channel
    46.
    发明专利
    Systems and methods for multiplexing control information onto a physical data channel 未知

    公开(公告)号：AU2004306461A1

    公开(公告)日：2005-04-14

    申请号：AU2004306461

    申请日：2004-10-01

    Applicant: QUALCOMM INC

    Inventor： MALLADI DURGA ,  WILLENEGGER SERGE D

    IPC: H04L12/56 ,  H04J3/02 ,  H04J13/00 ,  H04J13/04 ,  H04W4/20 ,  H04W72/04 ,  H04W99/00

    Abstract: Systems and methods for communicating control data for multiple physical data channels by transmitting control information for a first physical data channel on a physical control channel and combining the control information with information for a logical data channel and transmitting the combined information on a single physical data channel. In one embodiment, a method includes encoding and multiplexing data for a first data channel with control information for a second data channel, transmitting the multiplexed data on the first data channel, transmitting second data on the second data channel, and transmitting the control information for the first data channel on a control channel. The multiplexed data is then decoded using the control information from the control channel and demultiplexed. The demultiplexed control information for the second data channel is then used to decode the data on the second data channel.

    CONTROLLING FORWARD LINK TRANSMISSION POWER
    47.
    发明专利
    CONTROLLING FORWARD LINK TRANSMISSION POWER 未知

    公开(公告)号：CA2464413A1

    公开(公告)日：2003-05-01

    申请号：CA2464413

    申请日：2002-10-25

    Applicant: QUALCOMM INC

    Inventor： MALLADI DURGA

    IPC: H04B7/185 ,  H04B7/204 ,  H04B7/005

    Abstract: Forward link transmission power to a user terminal (124a, 124b, 124c) in a wireless communications system (100) having a plurality of beams (2041-20416 ) is controlled by identifying the location of a user terminal within one of t he plurality of beams (2041-20416), and setting the forward link (404) transmission power in response to the identified user terminal location. Identifying user terminal location (402, 502) may include receiving from the user terminal multiple signal power measurements (602), such as pilot signal measurements. From these measurements, a difference is calculated between a first of the signal power measurements that corresponds to a home beam and each of the other signal power measurements (604). If the largest of the calculated differences is greater than a predetermined threshold (606), it i s concluded that the user terminal is within a beam central region (610). However, if the largest of the calculated differences is less than or equal to the predetermined threshold (606), then it is concluded that the user termin al is within a beam crossover region (608).

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