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    A METHOD AND APPARATUS FOR PRE-CODING FOR A MIMO SYSTEM
    131.
    发明专利
    A METHOD AND APPARATUS FOR PRE-CODING FOR A MIMO SYSTEM 未知

    公开(公告)号：CA2627388A1

    公开(公告)日：2007-05-03

    申请号：CA2627388

    申请日：2006-10-27

    Applicant: QUALCOMM INC

    Inventor： BARRIAC GWENDOLYN D ,  SAMPATH HEMANTH ,  WANG JIBING ,  GOROKHOV ALEXEI ,  KADOUS TAMER

    IPC: H04B7/04

    Abstract: Systems and methodologies are described that facilitates computing a precoding index which correlates to a precoding matrix within a codebook. According to various aspects, systems and/or methods are described that facilitate computing an effective signal-to-noise ratio (SNR). Such systems and/or methods may further facilitate selecting a precoding matrix and a corresponding precoding index. Such systems and/or methods may still further facilitate employing the precoding matrix in a MIMO wireless communication system.

    SDMA RESOURCE MANAGEMENT
    132.
    发明专利
    SDMA RESOURCE MANAGEMENT 未知

    公开(公告)号：CA2625713A1

    公开(公告)日：2007-05-03

    申请号：CA2625713

    申请日：2006-10-27

    Applicant: QUALCOMM INC

    Inventor： JI TINGFANG ,  AGRAWAL AVNEESH ,  DONG MIN ,  GOROKHOV ALEXEI ,  GORE DHANANJAY ASHOK

    IPC: H04L27/26 ,  H04W72/06

    Abstract: A method for allocating resources in a wireless communications environment comprises receiving a mapping between a first hop-port and frequency range, and determining whether to map a second access terminal to a second hop-port that is mapped to at least the same frequency range during a substantially similar instance in time, the determination made as a function of characteristics relating to a first access terminal associated with the first hop-port. The method can further include determining that the first access terminal is a candidate for employing Space-Division Multiple Access (SDMA), and mapping the second-hop port and associating the second access terminal with the second hop-port when the second access terminal is also a candidate for employing SDMA.

    VARIED TRANSMISSION TIME INTERVALS FOR WIRELESS COMMUNICATION SYSTEM
    136.
    发明专利
    VARIED TRANSMISSION TIME INTERVALS FOR WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2620217A1

    公开(公告)日：2007-03-01

    申请号：CA2620217

    申请日：2006-08-24

    Applicant: QUALCOMM INC

    Inventor： TEAGUE EDWARD H ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD

    IPC: H04L1/00 ,  H04W72/12

    Abstract: Embodiments describe a varied transmission time interval in wireless communication system. According to some embodiments is a method for assignin g a transmission time interval. The method can include measuring a channel condition and/or a data rate of packet communicated by at least one wireless device. Based in part on the data rate and/or channel condition information, a determination can be made whether to schedule a long transmission time interval or a short transmission time interval to the packet. A long transmission time interval can be scheduled if the channel condition is poor and/or there is a low data rate. A short transmission time interval can be scheduled if the channel condition is good and/or the data rate is high or fast. The method can be repeated for multiple wireless devices. Also include d is an alternative interlacing structure that supports both long transmission time intervals and short transmission time intervals.

    RECEPTION OF H-ARQ TRANSMISSIONS WITH INTERFERENCE CANCELLATION IN A QUASI-ORTHOGONAL COMMUNICATION SYSTEM
    137.
    发明专利
    RECEPTION OF H-ARQ TRANSMISSIONS WITH INTERFERENCE CANCELLATION IN A QUASI-ORTHOGONAL COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2609761A1

    公开(公告)日：2006-12-14

    申请号：CA2609761

    申请日：2006-05-25

    Applicant: QUALCOMM INC

    Inventor： NAGUIB AYMAN FAWZY ,  GOROKHOV ALEXEI ,  SUTIVONG ARAK ,  JI TINGFANG ,  GORE DHANANJAY ASKOK

    IPC: H04Q7/00

    Abstract: To receive packets with interference cancellation, block transmissions for the packets are received on time-frequency blocks used by these packets. Receiver spatial processing is performed on input symbols to obtain detected symbols. Each packet is demodulated and decoded based on all detected symbols obtained for all block transmissions received for the packet. For each packet that is decoded correctly, the transmission for the packet is terminated, the interference due to the packet is estimated, and the estimated interference is subtracted from the input symbols for all time-frequency blocks used by the packet. Receiver spatial processing is performed on the interference-canceled symbols to obtain new detected symbols for all time-frequency blocks used by all correctly decoded packets. Each packet decoded in error and overlapping at least partially with any correctly decoded packet may be demodulated and decoded based on all detected symbols available for that packet.

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