METHOD AND APPARATUS FOR CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS)

    公开(公告)号:US20190273547A1

    公开(公告)日:2019-09-05

    申请号:US16415901

    申请日:2019-05-17

    Abstract: Methods and apparatuses for CSI reporting mechanisms are provided. A user equipment (UE) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive information indicating a channel state information reference signal (CSI-RS) resource configuration, uplink-related downlink control information (DCI), and a CSI-RS associated with a selected CSI-RS resource in a same subframe as the uplink-related DCI. The processor configured to determine, in response to a CSI request included in the uplink-related DCI, an aperiodic CSI in reference to the CSI-RS. The transceiver is further configured to report the aperiodic CSI by transmitting the aperiodic CSI on an uplink channel.

    Network-assisted multi-cell device discovery protocol for device-to-device communications

    公开(公告)号:US09955408B2

    公开(公告)日:2018-04-24

    申请号:US14176919

    申请日:2014-02-10

    CPC classification number: H04W48/16 H04W8/005

    Abstract: A method includes determining, at a first eNodeB (eNB) associated with a first cell of a network, that a first user equipment (UE) is to engage in a device discovery process. The method also includes coordinating parameters of the device discovery process with a second eNB. The second eNB is associated with a second cell of the network and with a second UE. The parameters define one or more resources to be used in the first and second cells during the device discovery process. The method further includes communicating at least some of the parameters to the first UE. The device discovery process includes a process in which the first UE identifies one or more other UEs with which the first UE is able to engage in device-to-device communications.

    Methods to support inter-eNodeB CoMP

    公开(公告)号:US09923684B2

    公开(公告)日:2018-03-20

    申请号:US14148467

    申请日:2014-01-06

    Abstract: A method of executing inter-eNB CoMP JT between a CoMP UE and multiple CoMP eNBs is disclosed. A first CoMP eNB constructs a first set of dynamic control information (DCI). The first set of DCI is independently constructed by the first CoMP eNB. The first CoMP eNB transmits the first set of DCI to the CoMP UE. The first set of DCI includes independent DL assignments allowing the first CoMP eNB to perform independent scheduling of a PDSCH associated with the first CoMP eNB. A second CoMP eNB constructs a second set of DCI. The second set of DCI is independently constructed by the second CoMP eNB. Furthermore, the second CoMP eNB transmits the second set of DCI to the CoMP UE. The second set of DCI includes independent DL assignments allowing the second CoMP eNB to perform independent scheduling of a PDSCH associated with the second CoMP eNB.

    Methods and apparatus for codebook subset restriction for two-dimensional advanced antenna systems
    28.
    发明授权
    Methods and apparatus for codebook subset restriction for two-dimensional advanced antenna systems 有权
    用于二维先进天线系统的码本子集限制的方法和装置

    公开(公告)号:US09438321B2

    公开(公告)日:2016-09-06

    申请号:US13939934

    申请日:2013-07-11

    CPC classification number: H04B7/0417 H04B7/0469 H04B7/0478

    Abstract: A user equipment (UE) in a wireless network having two-dimensional antenna systems performs a method of codebook sampling. The method includes receiving from an eNodeB (eNB) an indication of a restricted subset M of vertical precoding matrices, wherein M is less than a total number of vertical precoding matrices N in a codebook, the codebook comprising a plurality of vertical precoding matrices and horizontal precoding matrices. The method also includes feeding back vertical precoding matrix indicators (V-PMI) to the eNB based on the restricted subset of vertical precoding matrices.

    Abstract translation: 具有二维天线系统的无线网络中的用户设备(UE)执行码本采样的方法。 该方法包括从eNodeB(eNB)接收垂直预编码矩阵的受限子集M的指示,其中M小于码本中的垂直预编码矩阵N的总数,码本包括多个垂直预编码矩阵和水平 预编码矩阵。 该方法还包括基于垂直预编码矩阵的受限子集向eNB反馈垂直预编码矩阵指示符(V-PMI)。

    EFFICIENT OPERATION OF LTE CELLS ON UNLICENSED SPECTRUM
    29.
    发明申请
    EFFICIENT OPERATION OF LTE CELLS ON UNLICENSED SPECTRUM 审中-公开
    LTE电池对不同频谱的有效运行

    公开(公告)号:US20160135148A1

    公开(公告)日:2016-05-12

    申请号:US14933933

    申请日:2015-11-05

    Abstract: A method for measuring a downlink signal in a wireless communication system is provided. The method includes receiving a downlink signal from an eNodeB (eNB) using one or more carriers. The downlink signal includes one or more subframes during on an ON duration and an OFF duration in the one or more carriers. The method further includes measuring the one or more subframes included in the downlink signal to generate channel state information in accordance with a set of configuration parameters and transmitting an uplink signal including the channel state information to the eNB.

    Abstract translation: 提供了一种用于测量无线通信系统中的下行链路信号的方法。 该方法包括使用一个或多个载波从eNodeB(eNB)接收下行链路信号。 下行链路信号包括在ON持续时间期间的一个或多个子帧和一个或多个载波中的OFF持续时间。 该方法还包括测量下行链路信号中包括的一个或多个子帧,以根据一组配置参数生成信道状态信息,并向eNB发送包括信道状态信息的上行链路信号。

    CELL DETECTION, SYNCHRONIZATION AND MEASUREMENT ON UNLICENSED SPECTRUM
    30.
    发明申请
    CELL DETECTION, SYNCHRONIZATION AND MEASUREMENT ON UNLICENSED SPECTRUM 审中-公开
    细胞检测,同步和测量未经许可的光谱

    公开(公告)号:US20160073366A1

    公开(公告)日:2016-03-10

    申请号:US14846598

    申请日:2015-09-04

    Abstract: Methods and apparatuses for cell detection, synchronization and measurement on unlicensed spectrum. A method for receiving a discovery reference signal (DRS) includes identifying, based on a DRS measurement timing configuration (DMTC), a DRS detection/measurement gap duration and a periodicity; and listening for the DRS on a carrier in an unlicensed spectrum during the identified gap duration at the identified periodicity. An apparatus for an eNodeB associated with a cell includes a controller and a transceiver. The controller is configured to configure a DMTC including a DRS detection/measurement gap duration and periodicity. The transceiver is configured to transmit the DRS on a carrier in an unlicensed spectrum during the gap duration at the periodicity.

    Abstract translation: 无许可频谱的细胞检测,同步和测量的方法和装置。 一种用于接收发现参考信号(DRS)的方法包括:基于DRS测量定时配置(DMTC)识别DRS检测/测量间隙持续时间和周期性; 并在所识别的间隔时间内在所识别的周期内在无许可频谱的载波上监听DRS。 与小区相关联的eNodeB的装置包括控制器和收发器。 控制器被配置为配置包括DRS检测/测量间隙持续时间和周期性的DMTC。 收发器被配置为在周期性的间隙持续时间期间在未许可频谱的载波上发送DRS。

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