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    Method and apparatus for controlling transmissions of communication system
    1.
    发明专利
    Method and apparatus for controlling transmissions of communication system 有权
    控制通信系统传输的方法和装置

    公开(公告)号：JP2011182426A

    公开(公告)日：2011-09-15

    申请号：JP2011083933

    申请日：2011-04-05

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WALTON JAY R ,  WALLACE MARK ,  HOLTZMAN JACK ,  ANTONIO FRANKLIN P

    IPC: H04J1/05 ,  H04W52/18 ,  H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04W16/02 ,  H04W52/24 ,  H04W52/26 ,  H04W52/34

    CPC classification number: H04W52/343 ,  H04B17/336 ,  H04B17/382 ,  H04W52/24 ,  H04W52/241 ,  H04W52/244 ,  H04W52/267 ,  H04W52/286 ,  H04W52/346 ,  H04W72/1231 ,  H04W72/1242 ,  H04W72/1252

    Abstract: PROBLEM TO BE SOLVED: To provide a method for transmitting data to a plurality of receivers in a communication system. SOLUTION: The method includes: updating a parameter of a first set used for schedule of data transmission; deciding the priority of the data transmission; allocating data transmission to respective usable channel based in part on at least the priority of the data transmission; updating a parameter of a second set used for transmission of the data transmission; and transmitting the data to a plurality of receivers at a channel allocated by using a second set of the updated parameter. The parameter of first set is a channel occupation possibility, a load possibility, a carrier to interference plus noise (C/I) of the receiver or back-off-factors, or a combination of the above. Deciding the priority includes an operation of calculating the amount of channel of channel usable by each receiver by using the updated parameter of the first set. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种在通信系统中向多个接收机发送数据的方法。 解决方案：该方法包括：更新用于数据传输时间表的第一集合的参数; 决定数据传输的优先级; 至少部分地基于数据传输的优先级，将数据传输分配给​​相应的可用信道; 更新用于传输数据传输的第二组的参数; 以及通过使用第二组更新参数分配的信道将数据发送到多个接收机。 第一组的参数是信道占用可能性，负载可能性，接收机的载波干扰加噪声（C / I）或反向因数，或上述的组合。 确定优先级包括通过使用第一组的更新参数来计算每个接收机可用的信道的信道量的操作。 版权所有（C）2011，JPO＆INPIT

    Multiple-access hybrid ofdm-cdma system with frequency-domain spreading
    3.
    发明专利
    Multiple-access hybrid ofdm-cdma system with frequency-domain spreading 审中-公开
    具有频域扩展的多访问混合OFDM-CDMA系统

    公开(公告)号：JP2010016837A

    公开(公告)日：2010-01-21

    申请号：JP2009176266

    申请日：2009-07-29

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WALTON JAY R ,  KETCHUM JOHN W ,  HOWARD STEVEN J ,  WALLACE MARK

    IPC: H04J11/00 ,  H04B1/692 ,  H04B7/005 ,  H04L5/02 ,  H04W72/04

    CPC classification number: H04W52/12 ,  H04B1/692 ,  H04L5/0021 ,  H04L5/0048 ,  H04L5/026 ,  H04L25/0228 ,  H04L27/0008 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04W52/286

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for implementing a multiple-access hybrid OFDM-CDMA system that may be used to provide wireless voice and/or data communications. SOLUTION: In one aspect of a multiple-access OFDM-CDMA system, data spreading is performed in a frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供用于实现可用于提供无线语音和/或数据通信的多址混合OFDM-CDMA系统的技术。 解决方案：在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选出的相应的扩展码扩展每个数据流，在频域中执行数据扩展。 为了支持多重访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展​​码分配给用户，并且发送功率可以被分配给用户）。 可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。 还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。 每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。 版权所有（C）2010，JPO＆INPIT

    Diversity communication system for mimo ofdm communication system
    8.
    发明专利
    Diversity communication system for mimo ofdm communication system 有权
    用于MIMO OFDM通信系统的多样性通信系统

    公开(公告)号：JP2011050074A

    公开(公告)日：2011-03-10

    申请号：JP2010224047

    申请日：2010-10-01

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WALTON JAY R ,  KETCHUM JOHN W

    IPC: H04J11/00 ,  H04J99/00 ,  H04B1/00 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04B7/12 ,  H04B7/26 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26

    CPC classification number: H04L5/0028 ,  H04B7/04 ,  H04B7/0669 ,  H04B7/0678 ,  H04B7/0697 ,  H04L1/0001 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0023

    Abstract: PROBLEM TO BE SOLVED: To provide a technique for transmitting data using a number of diversity transmission modes to improve reliability. SOLUTION: At a transmitter, for each of one or more data streams, a particular diversity transmission mode is selected for use from among a number of possible transmission modes. These transmission modes may include a frequency diversity transmission mode, a Walsh diversity transmission mode, a space time transmit diversity (STTD) transmission mode, and a Walsh-STTD transmission mode. Each diversity transmission mode redundantly transmits data over a time, a frequency, a space, or a combination thereof. Each data stream is coded and modulated to provide modulation symbols which are further processed based on the selected diversity transmission mode to provide transmit symbols. For OFDM, the transmit symbols for all data streams are further OFDM modulated to provide a stream of transmission symbols for each transmit antenna used for data transmission. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种使用多个分集传输模式发送数据以提高可靠性的技术。 解决方案：在发射机处，对于一个或多个数据流中的每一个，从多个可能的传输模式中选择使用特定分集传输模式。 这些发送模式可以包括频率分集发送模式，沃尔什分集发送模式，空时发送分集（STTD）发送模式和沃尔什STTD发送模式。 每个分集传输模式在一段时间，频率，空间或其组合中冗余地发送数据。 对每个数据流进行编码和调制，以提供调制符号，该调制符号将根据所选择的分集传输模式进一步处理以提供传输符号。 对于OFDM，所有数据流的发送符号进一步进行OFDM调制，以为用于数据传输的每个发射天线提供传输符号流。 版权所有（C）2011，JPO＆INPIT

    Multiple-input multiple-output (mimo) systems with multiple transmission modes
    9.
    发明专利
    Multiple-input multiple-output (mimo) systems with multiple transmission modes 有权
    具有多种传输模式的多输入多输出（MIMO）系统

    公开(公告)号：JP2010154540A

    公开(公告)日：2010-07-08

    申请号：JP2010015555

    申请日：2010-01-27

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： MEDVEDEV IRINA ,  WALTON JAY R ,  WALLACE MARK

    IPC: H04J99/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04J11/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26

    CPC classification number: H04B7/0417 ,  H04B7/043 ,  H04B7/0439 ,  H04B7/0443 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/0689 ,  H04B7/0691 ,  H04B7/0854 ,  H04L1/0002 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0046 ,  H04L5/006 ,  H04W52/42

    Abstract: PROBLEM TO BE SOLVED: To provide techniques to transmit data on a number of transmission channels in a multi-channel communication system using multiple transmission schemes requiring less channel-state information (CSI). SOLUTION: These schemes may also include a partial-CSI transmission scheme that transmits a single data stream on each transmit antenna selected for use and a "beam-forming" transmission scheme that allocates all transmit power to a single transmission channel having the best performance. Each transmission scheme may provide good or near-optimum performance for a specific range of operating conditions (or operating SNRs). These multiple transmission schemes may then be combined by division to form a "multi-mode" transmission scheme that covers the full range of operating conditions supported by the MIMO system. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供使用需要较少信道状态信息（CSI）的多个传输方案来在多信道通信系统中的多个传输信道上发送数据的技术。 解决方案：这些方案还可以包括在被选择使用的每个发射天线上发送单个数据流的部分CSI传输方案以及将所有发射功率分配给具有所述传输信道的单个传输信道的“波束形成”传输方案 最棒的表演。 每个传输方案可以为特定范围的操作条件（或操作SNR）提供良好或接近最佳的性能。 然后可以通过划分来组合这些多个传输方案以形成覆盖由MIMO系统支持的全部操作条件范围的“多模式”传输方案。 版权所有（C）2010，JPO＆INPIT

    Power control of partial channel status information (csi) multiple input multiple output (mimo) system
    10.
    发明专利
    Power control of partial channel status information (csi) multiple input multiple output (mimo) system 审中-公开
    部分信道状态信息（CSI）多输入多输出（MIMO）系统的功率控制

    公开(公告)号：JP2009239917A

    公开(公告)日：2009-10-15

    申请号：JP2009108682

    申请日：2009-04-28

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： MEDVEDEV IRINA ,  WALTON JAY R ,  KETCHUM JOHN W

    IPC: H04J99/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04J11/00 ,  H04L1/00 ,  H04L1/06 ,  H04W16/28 ,  H04W52/24

    CPC classification number: H04B7/0417 ,  H04B7/0619 ,  H04L1/0001 ,  H04L1/06 ,  H04W52/42

    Abstract: PROBLEM TO BE SOLVED: To provide a technique for controlling power to transmit a plurality of data flows in a radio multiple channel (e.g., MIMO) communication system. SOLUTION: A plurality of received symbol flows are processed according to a specific receiver processing technology (e.g., CCMI, CCMI-SC, MMSE or MMSE-SC) to first give a plurality of detected data flows. Post-detection SNRs of the detected data flows are evaluated and respective SNRs exceeding a set point is identified. This set point is correspondent to (1) an SNR required to obtain a maximum permissible spectral efficiency or (2) a target SNR required to obtain a specified spectral efficiency. A new (or adjusted) transmission power of each detected data flow related to the post-detection SNR exceeding the set point is determined and applied to the data flow. A different power control method is applied to a class of different receiver processing technique having a different characteristic. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于控制在无线多信道（例如，MIMO）通信系统中发送多个数据流的功率的技术。 解决方案：根据特定的接收机处理技术（例如，CCMI，CCMI-SC，MMSE或MMSE-SC）处理多个接收到的符号流，以首先给出多个检测到的数据流。 对检测到的数据流的检测后SNR进行评估，并且识别出超过设定点的各个SNR。 该设定点对应于（1）获得最大允许频谱效率所需的SNR或（2）获得特定频谱效率所需的目标SNR。 确定与超过设定点的检测后SNR相关的每个检测到的数据流的新（或调整的）发送功率并将其应用于数据流。 不同的功率控制方法被应用于具有不同特性的一类不同的接收机处理技术。 版权所有（C）2010，JPO＆INPIT

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