Method for transmitting and receiving signals in open-loop spatial multiplexing mode
    41.
    发明授权
    Method for transmitting and receiving signals in open-loop spatial multiplexing mode 有权
    开环空间复用模式发送和接收信号的方法

    公开(公告)号:US08320488B2

    公开(公告)日:2012-11-27

    申请号:US12382366

    申请日:2009-03-13

    IPC分类号: H04B7/02

    摘要: A method for transmitting and receiving signals in an open-loop spatial multiplexing transmission mode is described. If the number of transmit antennas is 2 and a rank is 2, a base station performs precoding according to a cyclic delay diversity scheme by a matrix in which a first matrix corresponding to an identity matrix, a second matrix corresponding to a diagonal matrix, and a third matrix corresponding to a unitary matrix are sequentially multiplied and transmits the precoded signals. This may be substantially the same as the case where the base station performs precoding using a matrix in which the second matrix corresponding to the diagonal matrix and the third matrix corresponding to the unitary matrix are multiplied and transmits the precoded signals. A user equipment estimates a transmission mode according to the received rank indicator and the number of transmit antennas and receives signals.

    摘要翻译: 描述了一种以开环空间复用传输模式发送和接收信号的方法。 如果发送天线的数量为2,秩为2,则基站根据循环延迟分集方案,通过对应于单位矩阵的第一矩阵,对应于对角矩阵的第二矩阵和 顺序地对应于酉矩阵的第三矩阵,并发送预编码的信号。 这可以与基站使用其中对应于对角矩阵的第二矩阵和与酉矩阵相对应的第三矩阵相乘并且发送预编码信号的矩阵来执行预编码的情况基本相同。 用户设备根据接收到的秩指示符和发射天线的数量来估计传输模式并接收信号。

    Method for mode adaptation in MIMO system
    42.
    发明授权
    Method for mode adaptation in MIMO system 有权
    MIMO系统中模式适配的方法

    公开(公告)号:US08111662B2

    公开(公告)日:2012-02-07

    申请号:US12385369

    申请日:2009-04-06

    IPC分类号: H04W4/00

    摘要: A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes reporting, by a base station, a MIMO feedback mode to a mobile station, receiving a feedback information determined on the basis of the MIMO feedback mode from the mobile station; and determining a MIMO feedback mode based on the feedback information. The MIMO feedback mode indicates whether it is single-user MIMO or multi-user MIMO and includes a number of mobile stations (MSs) transferred at one time. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译: 用于在单用户MIMO(SU-MIMO)模式和多用户MIMO(MU-MIMO)模式之间执行模式切换的模式适配方法包括由基站向移动台报告MIMO反馈模式,接收 基于来自移动台的MIMO反馈模式确定的反馈信息; 以及基于所述反馈信息确定MIMO反馈模式。 MIMO反馈模式指示它是单用户MIMO还是多用户MIMO,并且包括一次转移的多个移动台(MS)。 因此,该方法可以同时最大化系统吞吐量,同时有效减少反馈信息的数量。

    Feedback Method For Performing A Feedback By Using A Codebook In Mimo System
    43.
    发明申请
    Feedback Method For Performing A Feedback By Using A Codebook In Mimo System 审中-公开
    在Mimo系统中使用代码簿执行反馈的反馈方法

    公开(公告)号:US20120008613A1

    公开(公告)日:2012-01-12

    申请号:US13240591

    申请日:2011-09-22

    IPC分类号: H04W92/00

    摘要: A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译: 用于通过使用多输入多输出(MIMO)系统中的码本来执行反馈的反馈方法包括:由移动台接收MIMO模式类型信息,通过使用根据MIMO模式类型信息选择的码本生成反馈信息, 以及将所述反馈信息发送到所述基站。 码本包括SU-MIMO码本和MU-MIMO码本,并且通过从SU-MIMO码本中提取码本元素来形成MU-MIMO码本。 因此,该方法可以同时最大化系统吞吐量,同时有效减少反馈信息的数量。

    METHOD FOR ACQUIRING MULTI-CELL SPECIFIC MESSAGE IN WIRELESS COMMUNICATION SYSTEM
    44.
    发明申请
    METHOD FOR ACQUIRING MULTI-CELL SPECIFIC MESSAGE IN WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中获取多小区特定信息的方法

    公开(公告)号:US20110038320A1

    公开(公告)日:2011-02-17

    申请号:US12988504

    申请日:2009-04-14

    IPC分类号: H04W40/00

    摘要: A method for acquiring a multi-cell specific message in a wireless communication system includes receiving a downlink preamble, receiving the multi-cell specific message weighted with the downlink preamble, and decoding the weighted multi-cell specific message by using the received downlink preamble. Accordingly, since a preamble is used to transmit a multi-cell specific message, there is no need to transmit an additional signal in order to estimate a channel of the multi-cell specific message. In addition, a user equipment can acquire the multi-cell specific message by simply performing decoding.

    摘要翻译: 一种用于在无线通信系统中获取多小区特定消息的方法包括:接收下行链路前同步码,接收用下行链路前导码加权的多小区特定消息,以及通过使用所接收的下行链路前导码解码加权的多小区特定消息。 因此,由于使用前导码来发送多小区特定消息,所以不需要发送附加信号,以估计多小区特定消息的信道。 此外,用户设备可以通过简单地执行解码来获取多小区特定消息。

    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR
    45.
    发明申请
    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR 失效
    发送信道质量指标的方法

    公开(公告)号:US20100254272A1

    公开(公告)日:2010-10-07

    申请号:US12448677

    申请日:2008-03-28

    IPC分类号: H04J1/16 H04W4/00

    摘要: A method of transmitting channel quality indicator (CQI) includes obtaining CQI of each, of the plurality of sub-bands, selecting a first sub-band having the best CQI of the plurality of sub- bands, transmitting the best CQI of the first sub-band at a first transmission cycle and transmitting a difference value between the best CQI of the first sub-band and a CQI of the first sub-band at a second transmission cycle. Signalling overhead due to CQI transmission can be reduced.

    摘要翻译: 发送信道质量指示符(CQI)的方法包括获得多个子带中的每一个的CQI,选择具有多个子带中最佳CQI的第一子带,发送第一子带的最佳CQI 在第一传输周期发送第一子带的最佳CQI和第一子带的CQI之间的差值,并以第二传输周期发送。 可以减少由CQI传输引起的信令开销。

    METHOD OF ALLOCATING RADIO RESOURCES
    46.
    发明申请
    METHOD OF ALLOCATING RADIO RESOURCES 审中-公开
    分配无线电资源的方法

    公开(公告)号:US20100248766A1

    公开(公告)日:2010-09-30

    申请号:US12675505

    申请日:2008-09-03

    IPC分类号: H04W72/04

    CPC分类号: H04L5/0037 H04L5/0039

    摘要: A method of allocating radio resources includes allocating radio resources to a first allocation unit which is one of a plurality of allocation units included in a resource domain, and allocating radio resources to a second allocation unit at the m th position in a time domain and at the n th position in a frequency domain from the first allocation unit, wherein the resource domain includes a plurality of allocation unit groups, the plurality of allocation unit groups are composed the plurality of allocation units placed m in the time domain and n in the frequency domain from a previous allocation unit.

    摘要翻译: 一种分配无线电资源的方法包括:将无线电资源分配给第一分配单元,该第一分配单元是包括在资源域中的多个分配单元之一,并且将无线电资源分配给时域中的第m个位置的第二分配单元, 在来自第一分配单元的频域中的第n位置,其中所述资源域包括多个分配单元组,所述多个分配单元组由所述时域中放置为m的多个分配单元组成,并且频率为n 域从先前的分配单位。

    Pilot transmission method in a wireless communication system
    50.
    发明授权
    Pilot transmission method in a wireless communication system 有权
    无线通信系统中的导频传输方法

    公开(公告)号:US08494067B2

    公开(公告)日:2013-07-23

    申请号:US13062623

    申请日:2009-08-26

    IPC分类号: H04K1/10

    摘要: A pilot transmission method in a wireless communication system is provided. The method includes: transmitting a first pilot for channel measurement through a first transmission section; and transmitting a second pilot for channel measurement through a second transmission section which is subsequent in time to the first transmission section, wherein the first transmission section and the second transmission section include a plurality of sub-bands, parts of the plurality of sub-bands use predetermined precoding whereas the remaining sub-bands use non-predetermined precoding, and any one of the first pilot and the second pilot is carried only on a sub-band which uses the predetermined precoding whereas the other pilot is carried on the entirety of the plurality of sub-bands.

    摘要翻译: 提供了一种无线通信系统中的导频发送方法。 该方法包括:通过第一传输部分发送用于信道测量的第一导频; 并通过第二传输部分发送用于信道测量的第二导频,所述第二传输部分随后在第一传输部分中,其中第一传输部分和第二传输部分包括多个子带,多个子带的部分 使用预定的预编码,而剩余的子带使用非预定的预编码,并且第一导频和第二导频中的任何一个只在使用预定的预编码的子带上承载,而另一个导频被携带在整个 多个子带。