Method for transmitting and receiving signals in open-loop spatial multiplexing mode
    151.
    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
    152.
    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
    153.
    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。

    Apparatus and Method for Transmitting Data Using Transmission Diversity in Wireless Communication System
    154.
    发明申请
    Apparatus and Method for Transmitting Data Using Transmission Diversity in Wireless Communication System 失效
    在无线通信系统中使用发射分集发射数据的装置和方法

    公开(公告)号:US20110222588A1

    公开(公告)日:2011-09-15

    申请号:US13000958

    申请日:2009-06-05

    IPC分类号: H04B7/02 H04B1/713

    摘要: An apparatus for transmitting data in a wireless communication system is provided. The apparatus includes a data processor for generating modulation symbols by coding information bits and by constellation-mapping the coded information bits, a transmission (TX) processor for generating transmission symbols by applying any one of first and second transmission diversity schemes to the modulation symbols and for configuring a subframe including the transmission symbols, and a plurality of antennas for transmitting the subframe. The subframe comprises a plurality of slots and has a varying frequency band every slot by frequency hopping.

    摘要翻译: 提供一种用于在无线通信系统中发送数据的装置。 该装置包括:数据处理器,用于通过对信息比特进行编码并通过对编码信息比特进行星座映射来生成调制符号;传输(TX)处理器,用于通过将第一和第二传输分集方案中的任何一个应用于调制符号来产生传输符号, 用于配置包括发送符号的子帧以及用于发送子帧的多个天线。 子帧包括多个时隙,并且通过跳频在每个时隙具有变化的频带。

    METHOD OF TRANSMITTING OF DATA AND CONFIGURING A CODEBOOK IN MULTI ANTENNA SYSTEM
    155.
    发明申请
    METHOD OF TRANSMITTING OF DATA AND CONFIGURING A CODEBOOK IN MULTI ANTENNA SYSTEM 失效
    数据传输方法和配置多天线系统中的代码

    公开(公告)号:US20110051834A1

    公开(公告)日:2011-03-03

    申请号:US12666777

    申请日:2008-06-24

    IPC分类号: H04L1/02

    CPC分类号: H04W52/346

    摘要: Methods of controlling a transmission power and configuring a codebook in a multi-antenna system to solve a transmission power unbalance between antennas are disclosed. The method of transmitting data in a multi-antenna system includes (A) transmitting one or more pilot signals within a first symbol region through a first antenna unit, and (B) transmitting one or more pilot signals within a second symbol region through a second antenna unit, wherein data within the first symbol region is transmitted through the second antenna unit, and data within the second symbol region is transmitted through the first antenna unit. According to the present invention, since a transmission power unbalance between antennas is solved, a transmission power can be uniformly assigned to each antenna and channel estimation can be easily performed. Moreover, a power amplifier having a uniform amplification range can be used and designed.

    摘要翻译: 公开了在多天线系统中控制发射功率和配置码本以解决天线之间的发射功率不平衡的方法。 在多天线系统中发送数据的方法包括:(A)通过第一天线单元在第一符号区域内传输一个或多个导频信号,以及(B)通过第二天线单元在第二符号区域内传输一个或多个导频信号 天线单元,其中通过第二天线单元发送第一符号区域内的数据,并且通过第一天线单元发送第二符号区域内的数据。 根据本发明,由于天线之间的发送功率不平衡被解决,所以可以将发送功率均匀地分配给每个天线,并且可以容易地进行信道估计。 此外,可以使用和设计具有均匀放大范围的功率放大器。

    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR
    156.
    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。

    FEEDBACK METHOD FOR PERFORMING A FEEDBACK BY USING A CODEBOOK IN MIMO SYSTEM
    157.
    发明申请
    FEEDBACK METHOD FOR PERFORMING A FEEDBACK BY USING A CODEBOOK IN MIMO SYSTEM 有权
    用于通过在MIMO系统中使用代码来执行反馈的反馈方法

    公开(公告)号:US20090257383A1

    公开(公告)日:2009-10-15

    申请号:US12385363

    申请日:2009-04-06

    IPC分类号: H04W72/04 H04B7/02

    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。

    Wireless communication system for high-speed vehicle travelling over fixed path
    158.
    发明授权
    Wireless communication system for high-speed vehicle travelling over fixed path 有权
    用于高速车辆在固定路径上行驶的无线通信系统

    公开(公告)号:US08918065B2

    公开(公告)日:2014-12-23

    申请号:US13498726

    申请日:2010-10-15

    摘要: The present invention discloses a method for transmitting a same pilot sequence from a transmitting end to a receiving end in a multi-antenna wireless communication system. In particular, the method comprises the steps of: setting an identical pilot pattern in a plurality of transmitting antennas, allocating respectively different pilot sequences to the set pilot patterns, and transmitting the allocated pilot sequences to the receiving end, wherein at least one of the transmitting antennas forms a valid communication link with one of the receiving antennas. Here, when there is a plurality of valid communication links, the plurality of communication links are mutually independent.

    摘要翻译: 本发明公开了一种在多天线无线通信系统中从发送端向接收端发送相同导频序列的方法。 特别地,该方法包括以下步骤:在多个发送天线中设置相同的导频模式,将不同的导频序列分配给所述设定的导频模式,以及将所分配的导频序列发送到所述接收端,其中, 发射天线与接收天线之一形成有效的通信链路。 这里,当存在多个有效的通信链路时,多个通信链路是相互独立的。

    Method and device for efficiently transmitting precoded reference signal in radio communication system
    160.
    发明授权
    Method and device for efficiently transmitting precoded reference signal in radio communication system 失效
    无线电通信系统中有效传输预编码参考信号的方法和装置

    公开(公告)号:US08614984B2

    公开(公告)日:2013-12-24

    申请号:US13375209

    申请日:2010-05-31

    IPC分类号: H04W4/00 H04W72/04

    摘要: The present invention relates to a radio communication system and more particularly, a method and a device for efficiently transmitting precoded reference signals. The method for transmitting reference signals in multiple antenna transmission, according to one embodiment of the present invention, comprises the steps of: determining a precoding vector for each of M layers (M≧3; M is a natural number); precoding a reference signal for each of the M layers in accordance with said precoding vector; multiplexing the precoded reference signals for N layers (N

    摘要翻译: 无线通信系统技术领域本发明涉及一种无线通信系统,更具体地,涉及一种有效地发送预编码参考信号的方法和装置。 根据本发明的一个实施例,用于在多天线传输中发送参考信号的方法包括以下步骤:确定每个M层(M> = 3; M是自然数)的预编码矢量; 根据所述预编码向量预编码每个M层的参考信号; 使用N个码对M层的预编码参考信号中的N层的预编码参考信号进行复用(N