Method for transmitting and receiving feedback information
    2.
    发明授权
    Method for transmitting and receiving feedback information 有权
    发送和接收反馈信息的方法

    公开(公告)号:US08295193B2

    公开(公告)日:2012-10-23

    申请号:US12525804

    申请日:2008-02-05

    IPC分类号: G01R31/08 H04K1/10

    摘要: A method for efficiently transmitting and receiving feedback information is disclosed. A cluster size as a unit for computing the feedback information and a reporting period of the feedback information are not uniformly determined by a base station. Information about a downlink channel status of each user equipment is reported, the cluster size and feedback period for computing and reporting the feedback information are determined using the information about the downlink channel status of each user equipment, and the feedback information is transmitted/received, thereby improving system capability.

    摘要翻译: 公开了一种有效地发送和接收反馈信息的方法。 作为用于计算反馈信息的单元的集群大小和反馈信息的报告周期不是由基站均匀地确定的。 报告关于每个用户设备的下行链路信道状态的信息,使用关于每个用户设备的下行链路信道状态的信息来确定用于计算和报告反馈信息的集群大小和反馈周期,并且反馈信息被发送/接收, 从而提高系统能力。

    METHOD OF TRANSMITTING BROADCAST INFORMATION IN WIRELESS COMMUNICATION SYSTEM
    4.
    发明申请
    METHOD OF TRANSMITTING BROADCAST INFORMATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中广播信息的传输方法

    公开(公告)号:US20100124194A1

    公开(公告)日:2010-05-20

    申请号:US12450993

    申请日:2008-04-28

    IPC分类号: H04W40/00 H04W72/04

    摘要: A method of transmitting broadcast information in a wireless communication system includes transmitting broadcast information and receiving an ACK (Acknowledgement)/NACK (Not-Acknowledgement) signal on an uplink channel from at least one mobile station in a cell, the ACK/NACK signal indicating whether the broadcast information is successfully received or not. A base station can know whether mobile stations successfully receive broadcast information or not and perform various operations to improve a reception rate of the broadcast information based on the result.

    摘要翻译: 在无线通信系统中发送广播信息的方法包括:从小区中的至少一个移动台发送广播信息并在上行链路信道上接收到ACK(确认)/ NACK(未确认))信号,所述ACK / NACK信号指示 广播信息是否成功接收。 基站可以知道移动站是否成功接收广播信息,并且基于该结果执行各种操作以提高广播信息的接收速率。

    Method for mode adaptation in MIMO system
    5.
    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
    6.
    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 of transmitting channel information in multiple antenna system
    7.
    发明授权
    Method of transmitting channel information in multiple antenna system 有权
    在多天线系统中传输信道信息的方法

    公开(公告)号:US08488537B2

    公开(公告)日:2013-07-16

    申请号:US12673484

    申请日:2008-08-14

    IPC分类号: H04B7/005 H04B7/212 H04W4/00

    摘要: A method of transmitting channel information in a multiple antenna system includes receiving the channel information comprising rank information, and transmitting a confirm message through a downlink control channel as a confirmation for the channel information, wherein the confirm message comprises overriding rank information which overrides the received rank information in an open loop scheme and also comprises information indicating whether the received channel information is used without alteration in a closed loop scheme. A rank indicator (RI) and a precoding matrix indicator (PMI) can be carried on a dedicated control channel (DCCH) and be specified through a physical downlink control channel (PDCCH).

    摘要翻译: 一种在多天线系统中发送信道信息的方法包括:接收包括秩信息的信道信息,并通过下行链路控制信道发送确认消息作为信道信息的确认,其中确认消息包括覆盖所接收的等级信息 并且还包括指示在闭环方案中是否使用所接收的信道信息而不改变的信息。 等级指示符(RI)和预编码矩阵指示符(PMI)可以在专用控制信道(DCCH)上承载,并且通过物理下行链路控制信道(PDCCH)来指定。

    Feedback method for performing a feedback by using a codebook in MIMO system
    9.
    发明授权
    Feedback method for performing a feedback by using a codebook in MIMO system 有权
    在MIMO系统中使用码本执行反馈的反馈方法

    公开(公告)号:US08045528B2

    公开(公告)日:2011-10-25

    申请号:US12385363

    申请日:2009-04-06

    IPC分类号: H04Q7/00

    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。