Method for transmitting channel state information and apparatus therefor

    公开(公告)号:US09621241B2

    公开(公告)日:2017-04-11

    申请号:US15077672

    申请日:2016-03-22

    CPC classification number: H04B7/0456 H04B7/024 H04B7/0478 H04B7/065

    Abstract: A method for reporting, by a UE, a downlink channel state in a wireless communication system according to an embodiment of the present invention includes: receiving a vertical precoding matrix indicator (PMI) to be used to calculate the downlink channel state; calculating a value of the downlink channel state using the received vertical PMI; and reporting the calculated downlink channel state value to an eNB, wherein the received vertical PMI is used from a later subframe between a subframe in which the vertical PMI is received and a subframe preceding a subframe in which the calculated downlink channel state value is reported by the number of subframes necessary to calculate the downlink channel state value using the received vertical PMI.

    Method and device for controlling transmission power for uplink control channel in carrier aggregation system
    183.
    发明授权
    Method and device for controlling transmission power for uplink control channel in carrier aggregation system 有权
    用于控制载波聚合系统中上行控制信道传输功率的方法和装置

    公开(公告)号:US09554372B2

    公开(公告)日:2017-01-24

    申请号:US14425294

    申请日:2013-09-09

    Abstract: Provided are a method of controlling transmission power for an uplink control channel for a terminal to which a plurality of cells are assigned, and a device using the method. The method receives a first set of parameters and a second set of parameters that are used for determining transmission power for the uplink control channel and determines the transmission power for the uplink control channel by using the first set of parameters or the second set of parameters, wherein the first set of parameters or the second set of parameters is used according to one of the cells to which the uplink control channel is transmitted.

    Abstract translation: 提供了一种控制用于分配了多个小区的终端的上行链路控制信道的发送功率的方法和使用该方法的装置。 该方法接收第一组参数和第二组参数,用于确定上行链路控制信道的发射功率,并通过使用第一组参数或第二组参数确定上行链路控制信道的发射功率, 其中根据发送所述上行链路控制信道的小区之一来使用所述第一组参数或第二组参数。

    Method and device for decoding downlink data
    184.
    发明授权
    Method and device for decoding downlink data 有权
    下行数据解码方法和装置

    公开(公告)号:US09531516B2

    公开(公告)日:2016-12-27

    申请号:US14443119

    申请日:2014-02-21

    Abstract: Method for decoding data in a downlink subframe involves a terminal receiving downlink data in a data subframe transmitted in a first serving cell; the terminal receiving configuration information about PRS subframes which transmit PRS, wherein the PRS subframes are transmitted in a second serving cell; and determining whether the terminal decodes, according to the configuration information, the data transmitted through a PDSCH or an EPDCCH in the data subframe, wherein the decoding of the data transmitted through the PDSCH or the EPDCCH is abandoned by the terminal when a first CP length of the data subframe is different from a first subframe CP length of a first frame which includes the data subframe, and the data subframe may overlap with at least one PRS subframe of the PRS subframes.

    Abstract translation: 用于在下行链路子帧中解码数据的方法涉及在第一服务小区中发送的数据子帧中接收下行链路数据的终端; 所述终端接收关于PRS子帧的发送PRS的配置信息,其中,所述PRS子帧在第二服务小区中发送; 以及根据配置信息确定在数据子帧中通过PDSCH或EPDCCH发送的数据是否解码,其中当通过PDSCH或EPDCCH发送的数据的解码被第一CP长度 数据子帧与包括数据子帧的第一帧的第一子帧CP长度不同,并且数据子帧可以与PRS子帧的至少一个PRS子帧重叠。

    Method of demodulating data on new type of carrier wave
    186.
    发明授权
    Method of demodulating data on new type of carrier wave 有权
    解调新型载波数据的方法

    公开(公告)号:US09515759B2

    公开(公告)日:2016-12-06

    申请号:US14396885

    申请日:2013-05-09

    Abstract: A method of demodulating data according to an embodiment of the present invention is presented. The method of demodulating data may include: setting a terminal to be in a transmission mode of PDSCH to which transmission diversity is applied; receiving resource allocation information on the PDSCH by the terminal; transmitting downlink (DL) data onto the PDSCH to which the transmission diversity is applied, according to the resource allocation information; receiving, from a base station, information on the number of antenna ports used for receiving a reference signal that is used for demodulating the DL data; and receiving a reference signal used for demodulating the DL data. The reference signal may be generated based on the identifier of the terminal, and the number of antenna ports used for receiving the reference signal may be the same as the number of antenna ports used for receiving the PDSCH.

    Abstract translation: 提出了根据本发明实施例的解调数据的方法。 解调数据的方法可以包括:将终端设置为应用发送分集的PDSCH的传输模式; 通过终端在PDSCH上接收资源分配信息; 根据所述资源分配信息,将下行链路(DL)数据发送到应用了所述发送分集的PDSCH上; 从基站接收用于接收用于解调DL数据的参考信号的天线端口数量的信息; 以及接收用于解调DL数据的参考信号。 可以基于终端的标识符来生成参考信号,并且用于接收参考信号的天线端口的数量可以与用于接收PDSCH的天线端口的数量相同。

    Method for signaling control information, and apparatus therefor
    187.
    发明授权
    Method for signaling control information, and apparatus therefor 有权
    用于信令控制信息的方法及其装置

    公开(公告)号:US09504029B2

    公开(公告)日:2016-11-22

    申请号:US14418855

    申请日:2013-08-01

    Abstract: The present invention relates to a wireless communication system. In detail, the invention relates to a method for a terminal to transmit a UCI in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method involves the steps of: forming a first cell group having a PCell; forming a second cell group having one or more SCells; receiving one or more data in the second cell group; and transmitting HARQ-ACK information on the one or more data through a PUCCH, wherein, when the first and second cell groups are managed by an identical base station, the HARQ-ACK information is transmitted in the PCell, and, when the first and second cell groups are managed by different base stations, the HARQ-ACK information is transmitted in the second cell group.

    Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统。 具体而言,本发明涉及一种终端在基于载波聚合的无线通信系统中发送UCI的方法及其装置,其中该方法包括以下步骤:形成具有PCell的第一小区组; 形成具有一个或多个SCell的第二单元组; 在第二小区组中接收一个或多个数据; 以及通过PUCCH发送关于所述一个或多个数据的HARQ-ACK信息,其中当所述第一和第二小区组由相同的基站管理时,所述HARQ-ACK信息在所述PCell中发送,并且当所述第一和第 第二小区组由不同的基站管理,在第二小区组中发送HARQ-ACK信息。

    METHOD FOR TRANSMITTING EFFICIENT FEEDBACK IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
    189.
    发明申请
    METHOD FOR TRANSMITTING EFFICIENT FEEDBACK IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR 有权
    在多天线无线通信系统中传输有效反馈的方法及其设备

    公开(公告)号:US20150229371A1

    公开(公告)日:2015-08-13

    申请号:US14423648

    申请日:2013-09-16

    Abstract: The present invention relates to a method for transmitting a signal of a transmitting side in a wireless communication system that supports multiple antennas. More particularly, the method comprises the steps of: receiving, from a receiving side, feedback information for transmitting the signal of the transmitting side; and transmitting a signal to which a precoding matrix (W) is applied on the basis of the feedback information, wherein the precoding matrix (W) is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is set to correspond to a plurality of antenna groups configured according to the feedback information, and W2 is configured such that the signal corresponding to the plurality of antenna groups can be transmitted in a mutual orthogonal way.

    Abstract translation: 本发明涉及在支持多个天线的无线通信系统中发送发送侧的信号的方法。 更具体地,该方法包括以下步骤:从接收侧接收用于发送发送侧的信号的反馈信息; 并根据反馈信息发送应用了预编码矩阵(W)的信号,其中预编码矩阵(W)表示为两个预编码矩阵(W1和W2)的乘法,W1被设置为对应于 根据反馈信息配置的多个天线组,W2被配置为使得可以以相互正交的方式发送与多个天线组对应的信号。

    Method for selecting PMI for non-adaptive HARQ operation in a MIMO wireless communication system
    190.
    发明授权
    Method for selecting PMI for non-adaptive HARQ operation in a MIMO wireless communication system 有权
    用于在MIMO无线通信系统中选择用于非自适应HARQ操作的PMI的方法

    公开(公告)号:US09100066B2

    公开(公告)日:2015-08-04

    申请号:US14268917

    申请日:2014-05-02

    Abstract: A method for transmitting an uplink signal at a User Equipment (UE) in a wireless communication system includes receiving, from a Base Station (BS), an uplink scheduling grant for multi-antenna transmission; transmitting the uplink signal precoded using precoding information included in the received uplink scheduling grant to the BS; and retransmitting the uplink signal to the BS according to Acknowledgment/Negative Acknowledgment (ACK/NACK) corresponding to the transmitted uplink signal. The retransmitted uplink signal is precoded using precoding information included in a most recent uplink scheduling grant or a predetermined precoding matrix if an uplink scheduling grant for the retransmission is not received from the BS.

    Abstract translation: 一种用于在无线通信系统中的用户设备(UE)处发送上行链路信号的方法包括从基站(BS)接收用于多天线传输的上行链路调度许可; 使用包括在所接收的上行链路调度许可中的预编码信息对所述BS进行预编码的所述上行链路信号; 并根据与发送的上行链路信号对应的确认/否定确认(ACK / NACK)向BS发送上行链路信号。 如果没有从BS接收到用于重传的上行链路调度许可,则使用包括在最新上行链路调度许可中的预编码信息或预定的预编码矩阵来对重传的上行链路信号进行预编码。

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