COOPERATIVE AUTONOMOUS AND SCHEDULED RESOURCE ALLOCATION FOR A DISTRIBUTED COMMUNICATION SYSTEM

    公开(公告)号:CA2790338C

    公开(公告)日:2016-05-24

    申请号:CA2790338

    申请日:2004-08-03

    Applicant: QUALCOMM INC

    Abstract: An access terminal (206) configured for wireless communication with an access network (204) within a sector (1032). The access terminal (206) includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions stored in the memory (2604) implement a method of determining whether a current power allocation grant (1374) for a flow (1216) on the access terminal (206) has been received from the access network (204). If the current power allocation grant (1374) is still active, a current power allocation (1338a) for the flow is set equal to the current power allocation grant (1374). If the current power allocation grant (1374) has not been received, the current power allocation (1338a) for the flow is determined.

    INTERFERENCE MITIGATION IN ASYMMETRIC LTE DEPLOYMENT

    公开(公告)号:IN2230MUN2014A

    公开(公告)日:2015-07-24

    申请号:IN2230MUN2014

    申请日:2014-11-05

    Applicant: QUALCOMM INC

    Abstract: Interference mitigation solutions are disclosed for interference experienced based on asymmetric uplink (UL)/downlink (DL) slot configuration. The aggressor/victim network entities are identified using either measurement or static/semi static means such that the victim network entities that may be impacted by interference from aggressor network entity transmissions are identified. Inter Cell Interference Coordination (ICIC) mechanisms are extended to negotiate and address scheduling that intelligently mitigates interference that occurs in the colliding slots.

    Procedimiento y aparato para dar soporte a MIMO distribuidas en un sistema de comunicación inalámbrica

    公开(公告)号:ES2538131T3

    公开(公告)日:2015-06-17

    申请号:ES09749224

    申请日:2009-08-06

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (400) para comunicación inalámbrica, que comprende: determinar (412) una primera estimación de canal para una primera célula en un equipo de usuario, UE, en el que la primera célula es una célula servidora para el UE; determinar (414) una segunda estimación de canal para una segunda célula en el UE, en el que la segunda célula es una célula no servidora para el UE; determinar (416) información del indicador de calidad de canal, CQI, para la primera célula; seleccionar un primer número de bits para cuantizar la primera estimación de canal; seleccionar un segundo número de bits para cuantizar la segunda estimación de canal, de modo que el segundo número de bits sea mayor que el primer número de bits; cuantizar la primera estimación de canal con el primer número de bits; cuantizar la segunda estimación de canal con el segundo número de bits; enviar (418) las estimaciones de canal primera y segunda desde el UE a al menos una entre las células primera y segunda; enviar (420) la información de CQI a la primera célula; recibir (422) una primera transmisión enviada por la primera célula, en base a la primera estimación de canal y a la información de CQI; y recibir (424) una segunda transmisión enviada por la segunda célula, en base a la segunda estimación de canal, en el que las transmisiones primera y segunda son recibidas sobre los mismos recursos.

    CSI REPORTING FOR LTE-TDD EIMTA
    135.
    发明专利

    公开(公告)号:CA2922438A1

    公开(公告)日:2015-04-02

    申请号:CA2922438

    申请日:2014-09-22

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

    METHOD AND APPARATUS FOR SUPPORTING MULTI-USER AND SINGLE-USER MIMO IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:HK1158843A1

    公开(公告)日:2012-07-20

    申请号:HK11111035

    申请日:2011-10-17

    Applicant: QUALCOMM INC

    Abstract: Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.

    139.
    发明专利
    未知

    公开(公告)号:AT497655T

    公开(公告)日:2011-02-15

    申请号:AT06846144

    申请日:2006-10-24

    Applicant: QUALCOMM INC

    Abstract: A system and method for Interference Cancellation (IC). One aspect relates to iterative interference cancellation with iterative finger delay adaptation. The interference cancellation method comprises receiving multi-paths of a signal; and performing iterative interference cancellation to remove multi-path interference, wherein the performing iterative IC comprises estimating a Signal-to-Interference-plus-Noise Ratio (SINR) at each of a plurality of pre-determined rake receiver finger delays, and performing successive Channel Estimation (CE) and IC on rake receiver fingers according to their estimated SINRs, and wherein the CE of a next finger does not start until interference of a previous finger is removed from a sample buffer. The method may further comprise improving estimated rake receiver finger delay, and each iteration decreases the amount of interference observed by each finger.

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