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    RATE CONTROL FOR MULTI-CHANNEL COMMUNICATION SYSTEMS
    81.
    发明专利
    RATE CONTROL FOR MULTI-CHANNEL COMMUNICATION SYSTEMS 未知

    公开(公告)号：CA2489931A1

    公开(公告)日：2003-12-31

    申请号：CA2489931

    申请日：2003-06-20

    Applicant: QUALCOMM INC

    Inventor： KADOUS TAMER ,  FERNANDEZ-CORBATON IVAN JESUS

    IPC: H04B7/005 ,  H04B7/06 ,  H04J11/00 ,  H04J99/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/20 ,  H04L12/56 ,  H04Q1/00 ,  H04W24/00 ,  H04W28/22 ,  H04W52/26 ,  H04Q7/20

    Abstract: Techniques to determine a set of rates for a set of data streams to be transmitted in a multi-channel communication system. A group of transmission channels to be used for each data stream is initially identified. An equivalent system for each group is then defined to have an AWGN (or flat) channel and a spectral efficiency equal to the average spectral efficiency o f the transmission channels in the group (216). A metric for each group is the n derived based on the associated equivalent system, e.g., set to the SNR need ed by the equivalent system to support the average spectral efficiency (218). A rate for each data stream is then determined based on the metric associated with the data stream. The rate is deemed to be supported by the communicatio n system if the SNR required to support the data rate by the communication system is less than or equal to the metric (226).

    TRANSMISSION STRUCTURE SUPPORTING MULTI-USER SCHEDULING AND MIMO TRANSMISSION
    86.
    发明专利
    TRANSMISSION STRUCTURE SUPPORTING MULTI-USER SCHEDULING AND MIMO TRANSMISSION 未知

    公开(公告)号：CA2730338C

    公开(公告)日：2016-09-13

    申请号：CA2730338

    申请日：2006-08-14

    Applicant: QUALCOMM INC

    Inventor： FERNANDEZ-CORBATON IVAN JESUS ,  BLANZ JOSEF J ,  GRANZOW WOLFGANG

    IPC: H04B1/707 ,  H04B1/7103 ,  H04J13/00 ,  H04J13/16 ,  H04W16/10

    Abstract: Techniques for transmitting data in a manner to support multi-user scheduling, multiple--input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.

    MULTI-STAGE RECEIVER FOR WIRELESS COMMUNICATION
    89.
    发明专利
    MULTI-STAGE RECEIVER FOR WIRELESS COMMUNICATION 未知

    公开(公告)号：CA2629675C

    公开(公告)日：2012-07-10

    申请号：CA2629675

    申请日：2006-11-30

    Applicant: QUALCOMM INC

    Inventor： JOETTEN CHRISTOPH ARNOLD ,  JONGREN GEORGE ,  FERNANDEZ-CORBATON IVAN JESUS

    IPC: H04B1/16 ,  H04B1/69 ,  H04L1/02 ,  H04L25/02

    Abstract: Techniques for receiving a MIMO transmission are described. A receiver processes received data from multiple receive antennas in multiple stages. A first stage performs front-end filtering/equalization on the received data with a front-end filter to process non on-time signal components in the multiple received signals. A second stage processes the filtered data with one or more combiner matrices to combine on-time signal components for multiple transmitted signals. For a MIMO-CDM transmission, a single front-end filter may be used for all channelization codes, and a different combiner matrix may be used for each channelization code. Partitioning the receiver processing into multiple stages simplifies derivation of the front-end filter and combiner matrices while achieving good performance. The front-end filter and combiner matrices may be updated separately at the same or different rates.

    90.
    发明专利
    未知

    公开(公告)号：BRPI0619175A2

    公开(公告)日：2011-09-20

    申请号：BRPI0619175

    申请日：2006-11-30

    Applicant: QUALCOMM INC

    Inventor： JOETTEN CHRISTOPH ARNOLD ,  JONGREN GEORGE ,  FERNANDEZ-CORBATON IVAN JESUS

    IPC: H04B1/707 ,  H04L25/03

    Abstract: Techniques for receiving a MIMO transmission are described. A receiver processes received data from multiple receive antennas in multiple stages. A first stage performs front-end filtering/equalization on the received data with a front-end filter to process non on-time signal components in the multiple received signals. A second stage processes the filtered data with one or more combiner matrices to combine on-time signal components for multiple transmitted signals. For a MIMO-CDM transmission, a single front-end filter may be used for all channelization codes, and a different combiner matrix may be used for each channelization code. Partitioning the receiver processing into multiple stages simplifies derivation of the front-end filter and combiner matrices while achieving good performance. The front-end filter and combiner matrices may be updated separately at the same or different rates.

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