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    Method and apparatus for controlling transmission of communication system
    11.
    发明专利
    Method and apparatus for controlling transmission of communication system 有权
    控制通信系统传输的方法和装置

    公开(公告)号：JP2011182425A

    公开(公告)日：2011-09-15

    申请号：JP2011083932

    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 operating a large number of transmission devices in a radio communication system. SOLUTION: The method includes: segmenting usable system resources into a plurality of channels; defining a reuse scheme including a plurality of cells for the communication system; determining one or more characteristics for each of the cells in the reuse scheme; allocating a combination of channels to each of cells in the reuse scheme on the basis of one or more characteristics for which at least a cell is partially decided; and repeating decision and allocation in order to reflect the change in the communication system. The cells in the reuse scheme are each allocated with the channels of each set for transmission at a full power level. The cells in the reuse scheme are each allocated with channels of each set including one or more channels usable for transmission at a full power level and one or more channels usable for transmission at a reduce power level. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 解决的问题：提供一种在无线通信系统中操作大量发送装置的方法。 解决方案：该方法包括：将可用系统资源分割成多个信道; 定义包括用于通信系统的多个小区的重用方案; 确定所述重用方案中的每个小区的一个或多个特性; 基于至少一个小区被部分地决定的一个或多个特征，将信道的组合分配给重用方案中的每个小区; 并重复决策和分配，以反映通信系统的变化。 重新配置方案中的小区各自分配有用于在全功率电平下传输的每组的信道。 重用方案中的小区各自分配有每个组的信道，包括可用于在全功率电平下传输的一个或多个信道，以及可用于以降低功率电平进行传输的一个或多个信道。 版权所有（C）2011，JPO＆INPIT

    Adaptation rate control for ofdm communication system
    12.
    发明专利
    Adaptation rate control for ofdm communication system 有权
    OFDM通信系统的适应速率控制

    公开(公告)号：JP2010239653A

    公开(公告)日：2010-10-21

    申请号：JP2010132185

    申请日：2010-06-09

    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 ,  H04L1/00 ,  H04Q7/38

    CPC classification number: H04L1/0015 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  Y02D50/10

    Abstract: PROBLEM TO BE SOLVED: To provide a technology for adaptively controlling a data transmission rate in a radio (e.g., OFDM) communication system.
    SOLUTION: In one viewpoint, various kinds of metrics may be derived and used to select a suitable rate for data transmission. Some kinds of metrics relate to different characteristics of a communication channel such as an SNR, a frequency selection degree, a time selection degree and the like. One kind of metrics relates to data transmission performance. In another viewpoint, the various kinds of metrics may be used in a different way to adaptively control the rate. Some metrics may be used for open-loop control, other metrics may be used for closed-loop control, and some may be used for both. For example, a channel metrics may be used to decide or select the rate, and a performance metrics may be used to decide whether or not to adjust the rate.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于在无线电（例如，OFDM）通信系统中自适应地控制数据传输速率的技术。 解决方案：从一个角度来看，可以导出各种度量来用于选择用于数据传输的合适的速率。 某些度量涉及通信信道的不同特性，例如SNR，频率选择度，时间选择度等。 一种度量与数据传输性能有关。 另一方面，可以以不同的方式使用各种度量来自适应地控制速率。 一些度量可以用于开环控制，其他度量可以用于闭环控制，一些度量可以用于两者。 例如，可以使用信道度量来决定或选择速率，并且可以使用性能度量来决定是否调整速率。 版权所有（C）2011，JPO＆INPIT

    Method and device for processing data in multiple-input multiple-output (mimo) communication system using channel state information
    14.
    发明专利
    Method and device for processing data in multiple-input multiple-output (mimo) communication system using channel state information 有权
    用于使用信道状态信息在多输入多输出（MIMO）通信系统中处理数据的方法和装置

    公开(公告)号：JP2010136409A

    公开(公告)日：2010-06-17

    申请号：JP2010003249

    申请日：2010-01-08

    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 ,  KETCHUM JOHN W ,  HOWARD STEVEN J

    IPC: H04J99/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/12 ,  H04J11/00 ,  H04L1/00

    CPC classification number: H04B7/0417 ,  H04B7/0626 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/0854 ,  H04B7/10 ,  H04B7/12 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0071

    Abstract: PROBLEM TO BE SOLVED: To provide a technique to successively process received signals in a receiver unit and to adaptively process data in a transmitter unit based on channel state information available with an MIMO channel in an MIMO system for recovering transmitted data. SOLUTION: A successive cancellation receiver processing technique is used for processing the received signals and performing a number of iterations in order to provide a decoded data stream. For each iteration, input (e.g., received) signals for the iteration are processed to provide one or more symbol streams. One of the symbol streams is selected and processed to provide a decoded data stream. The interference due to the decoded data stream is removed (i.e., canceled) from the input signals provided to the next iteration. The channel characteristics are evaluated and informed to the source of the transmitter system to adjust processing (such as coding, modulation) of data prior to transmission (i.e., adaptation). COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种在接收机单元中连续处理接收信号并基于用于恢复发送数据的MIMO系统中的MIMO信道可用的信道状态信息自适应地处理发射机单元中的数据的技术。 解决方案：连续的取消接收器处理技术用于处理接收的信号并执行多次迭代以提供解码的数据流。 对于每次迭代，处理用于迭代的输入（例如，接收的）信号以提供一个或多个符号流。 选择并处理符号流中的一个以提供解码的数据流。 由于解码的数据流的干扰从提供给下一次迭代的输入信号中被去除（即，取消）。 对信道特性进行评估并通知给发射机系统的源，以便在传输（即，适配）之前调整数据的处理（例如编码，调制）。 版权所有（C）2010，JPO＆INPIT

    Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems
    15.
    发明专利
    Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems 有权
    用于MIMO系统的信道模式分解的时域发射和接收处理

    公开(公告)号：JP2010119134A

    公开(公告)日：2010-05-27

    申请号：JP2010019320

    申请日：2010-01-29

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

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

    IPC: H04J99/00 ,  H04B7/04 ,  H04L1/00 ,  H04L25/03 ,  H04L27/26

    CPC classification number: H04B7/0417 ,  H04B7/0443 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0029 ,  H04L25/03343 ,  H04L25/03834 ,  H04L27/2601 ,  H04L27/2647 ,  H04L2025/0349 ,  H04L2025/03605

    Abstract: PROBLEM TO BE SOLVED: To provide time-domain transmit and receive processing using channel eigen-mode decomposition for MIMO systems.
    SOLUTION: In an aspect, a time-domain implementation is provided which uses frequency-domain singular value decomposition and "water-pouring" results to derive time-domain pulse-shaping and beam-steering solutions at the transmitter and receiver. The singular value decomposition is performed at the transmitter to determine THE eigen-modes (i.e., spatial subchannels) of the MIMO channel and to derive a first set of steering vectors used to "precondition" modulation symbols. The singular value decomposition is also performed at the receiver to derive a second set of steering vectors used to precondition the received signals, such that orthogonal symbol streams are recovered at the receiver, which can simplify the receiver processing.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：使用MIMO系统的信道本征模式分解来提供时域发射和接收处理。 解决方案：在一方面，提供了时域实现，其使用频域奇异值分解和“浇注”结果以在发射机和接收机处导出时域脉冲整形和波束导引解决方案。 在发射机处执行奇异值分解以确定MIMO信道的本征模式（即，空间子信道），并导出用于“调制前”调制符号的第一组导引向量。 奇异值分解也在接收机处执行以导出用于预处理接收信号的第二组导引向量，使得在接收机处恢复正交符号流，这可以简化接收机处理。 版权所有（C）2010，JPO＆INPIT

    Multiple-access hybrid ofdm-cdma system with frequency-domain spreading
    20.
    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

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