TWO-DIMENSIONAL DISCRETE FOURIER TRANSFORM (2D-DFT) BASED CODEBOOK FOR ELEVATION BEAMFORMING
    1.
    发明申请
    TWO-DIMENSIONAL DISCRETE FOURIER TRANSFORM (2D-DFT) BASED CODEBOOK FOR ELEVATION BEAMFORMING 审中-公开
    基于二维离散傅里叶变换(2D-DFT)的高阶波束编码

    公开(公告)号:US20160173180A1

    公开(公告)日:2016-06-16

    申请号:US14889108

    申请日:2014-06-12

    IPC分类号: H04B7/04 H04L27/26

    摘要: The present disclosure relates to systems and methods for a two-dimensional discrete Fourier transform based codebook for elevation beamforming. A two-dimensional discrete Fourier transform based codebook is determined for elevation beamforming. The codebook supports single stream codewords and multistream codewords. The two-dimensional discrete Fourier transform based codebook is generated by stacking the columns of the matrix product of two discrete Fourier transform codebook matrices. The codebook size may be flexibly designed based on required beam resolution in azimuth and elevation. A best codebook index is selected from the generated two-dimensional discrete Fourier transform based codebook. The selected codebook index is provided in a channel state information report. The channel state information report is transmitted to a base station.

    摘要翻译: 本公开涉及用于仰角波束成形的基于二维离散傅里叶变换的码本的系统和方法。 基于二维离散傅里叶变换的码本被确定为仰角波束成形。 码本支持单流码字和多码流码字。 基于二维离散傅里叶变换的码本通过堆叠两个离散付里叶变换码本矩阵的矩阵乘积的列来生成。 可以基于方位角和高程中所需的光束分辨率灵活地设计码本大小。 从生成的基于二维离散傅立叶变换的码本中选择最佳码本索引。 所选码本索引在信道状态信息报告中提供。 信道状态信息报告被发送到基站。

    CSI REPORTING FOR LTE-TDD EIMTA
    2.
    发明申请
    CSI REPORTING FOR LTE-TDD EIMTA 有权
    针对LTE-TDD EIMTA的CSI报告

    公开(公告)号:US20160205579A1

    公开(公告)日:2016-07-14

    申请号:US14913889

    申请日:2014-09-22

    摘要: Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

    摘要翻译: 描述了用于提供周期性CSI报告和/或非周期性CSI报告以在eIMTA中为锚和非锚定TDD子帧提供CSI的方法,系统和设备。 可以基于参考配置提供周期性CSI报告,并且可以基于接收到CSI请求和参考配置的时间来提供非周期性CSI报告。 UE可以通过显式或隐式信令来确定报告锚或非锚定CSI。 非周期性CSI可以用于发送锚定子帧CSI报告,并且周期性CSI可以用于非锚定子帧CSI报告的传输,或非周期性CSI可以用于非锚定子帧CSI报告的传输,并且周期性CSI可以用于 主播子帧CSI报告的传输。 用于非周期性CSI估计的参考子帧的确定可以基于接收到非周期性CSI请求的时间。

    DUAL THRESHOLD BASED CELL CLUSTERING INTERFERENCE MITIGATION FOR eIMTA
    3.
    发明申请
    DUAL THRESHOLD BASED CELL CLUSTERING INTERFERENCE MITIGATION FOR eIMTA 审中-公开
    针对eIMTA的基于双阈值的细胞聚集干扰减缓

    公开(公告)号:US20160056907A1

    公开(公告)日:2016-02-25

    申请号:US14781157

    申请日:2014-05-08

    IPC分类号: H04J11/00 H04L5/14 H04J3/16

    摘要: Methods, systems, and devices are described for interference mitigation between neighboring cells through the use of cell clusters and virtual logical cell clusters. Cells may be added to a cell cluster with a first cell when a level of interference coupling between the first cell and one or more neighboring cells exceeds a first threshold. One or more other cells may be added to a virtual logical cell cluster with the first cell when the level of interference coupling is between a second threshold and the first threshold, the second threshold being less than the first threshold. Interference mitigation between cells of cell clusters and/or virtual logical cell clusters may be performed. Interference mitigation may be accomplished through, for example, coordination of TDD uplink-downlink (UL-DL) configurations for cell clusters and scheduling-dependent interference management (SDIM) for virtual logical cell clusters.

    摘要翻译: 描述了通过使用小区集群和虚拟逻辑小区集群来在相邻小区之间进行干扰减轻的方法,系统和装置。 当第一小区和一个或多个相邻小区之间的干扰耦合水平超过第一阈值时,小区可以被添加到具有第一小区的小区簇。 当干扰耦合的水平处于第二阈值和第一阈值之间时,一个或多个其它小区可被添加到具有第一小区的虚拟逻辑小区簇,第二阈值小于第一阈值。 可以执行小区簇和/或虚拟逻辑小区群的小区之间的干扰减轻。 干扰减轻可以通过例如协调用于小区集群的TDD上行链路 - 下行链路(UL-DL)配置和用于虚拟逻辑小区集群的调度相关干扰管理(SDIM)来实现。

    IMPROVED RANDOM ACCESS PROCEDURE WITH BEAMFORMING IN LTE
    4.
    发明申请
    IMPROVED RANDOM ACCESS PROCEDURE WITH BEAMFORMING IN LTE 审中-公开
    改进的LTE随机接入程序

    公开(公告)号:US20160029358A1

    公开(公告)日:2016-01-28

    申请号:US14773869

    申请日:2013-03-15

    IPC分类号: H04W72/04 H04W74/08 H04B7/06

    摘要: A method for improved random access procedures by a UE is provided. The method comprises: measuring a common CSI-RS; selecting a best horizontal/vertical beam from a set of fixed beams; determining a preamble mapped to the selected horizontal/vertical beam; transmitting the preamble; and receiving a random access response.

    摘要翻译: 提供了一种用于UE改进随机接入过程的方法。 该方法包括:测量公共CSI-RS; 从一组固定光束中选择最佳水平/垂直光束; 确定映射到所选择的水平/垂直波束的前导码; 传送序言; 并接收随机接入响应。

    TDD RECONFIGURATION WITH CONSIDERATION OF DTX/DRX
    5.
    发明申请
    TDD RECONFIGURATION WITH CONSIDERATION OF DTX/DRX 审中-公开
    考虑DTX / DRX的TDD重新配置

    公开(公告)号:US20150327324A1

    公开(公告)日:2015-11-12

    申请号:US14654660

    申请日:2014-01-27

    IPC分类号: H04W76/04 H04W74/00

    摘要: Methods, systems, and devices are described for discontinuous transmission and/or discontinuous reception in time division duplex (TDD) systems that may have data transmission formats dynamically reconfigured. An initial uplink-downlink (UL-DL) configuration for TDD communication between an eNB and user equipment (UE) may be established. This initial UL-DL configuration may be reconfigured to a different UL-DL configuration for one or more UEs in communication with the eNB. When a UE switches to discontinuous reception (DRX) mode, it may monitor control information from the eNB during DRX on periods, a frequency of the DRX on periods based on a reference UL-DL configuration irrespective of any reconfiguration of UL-DL configuration for a particular UE. In some aspects, a UE that is operating in a UL-DL reconfiguration mode may, upon entering DRX mode, autonomously discontinue operating in the UL-DL re-configuration mode.

    摘要翻译: 描述了可能具有动态重新配置的数据传输格式的时分双工(TDD)系统中的不连续传输和/或不连续接收的方法,系统和设备。 可以建立用于eNB和用户设备(UE)之间的TDD通信的初始上行链路 - 下行链路(UL-DL)配置。 对于与eNB通信的一个或多个UE,可将该初始UL-DL配置重新配置为不同的UL-DL配置。 当UE切换到不连续接收(DRX)模式时,它可以在DRX开启周期期间监视来自eNB的控制信息,该DRX周期是基于参考UL-DL配置的DRX开启周期的频率,而不管UL-DL配置的任何重新配置​​如何, 一个特定的UE。 在一些方面中,在进入DRX模式时,以UL-DL重新配置模式工作的UE可以在UL-DL重新配置模式下自主地停止工作。

    HYBRID RECONFIGURATION METHODS AND APPARATUS FOR TDD ADAPTATION
    6.
    发明申请
    HYBRID RECONFIGURATION METHODS AND APPARATUS FOR TDD ADAPTATION 有权
    混合重构方法和TDD适应装置

    公开(公告)号:US20150341927A1

    公开(公告)日:2015-11-26

    申请号:US14653114

    申请日:2014-01-16

    摘要: Methods, systems, and devices are described for reconfiguring a user equipment (UE) to operate in a reconfigured TDD UL-DL configuration. An initial uplink-downlink (UL-DL) configuration for TDD communication may be provided for communication between an e Node B and a UE. One or more subframes within each frame transmitted using the initial UL-DL configuration may be identified as flexible subframes. The identification of flexible subframes may permit the identification of timing for HARQ transmissions that does not change when a reconfiguration takes place. A different UL-DL configuration may be transmitted to the UE, in which at least one flexible subframe is to be changed from an uplink subframe to a downlink subframe. The different UL-DL configuration may be transmitted by, for example, a pseudo-uplink grant to the UE, which indicates that the UE is to reconfigure one or more flexible subframes from uplink to downlink transmission.

    摘要翻译: 描述了用于重新配置用户设备(UE)以在重新配置的TDD UL-DL配置中操作的方法,系统和设备。 可以提供用于TDD通信的初始上行链路 - 下行链路(UL-DL)配置,用于e节点B和UE之间的通信。 使用初始UL-DL配置发送的每个帧内的一个或多个子帧可以被识别为灵活的子帧。 灵活子帧的识别可以允许识别在发生重新配置时不改变的HARQ传输的定时。 可以向UE发送不同的UL-DL配置,其中至少一个灵活子帧将从上行链路子帧改变到下行链路子帧。 可以通过例如伪上行链路授权向UE发送不同的UL-DL配置,其指示UE将从上行链路到下行链路传输重新配置一个或多个灵活的子帧。

    TDD reconfiguration with consideration of DTX/DRX

    公开(公告)号:US11337245B2

    公开(公告)日:2022-05-17

    申请号:US14654660

    申请日:2014-01-27

    IPC分类号: H04W74/00 H04W52/02 H04W76/28

    摘要: Methods, systems, and devices are described for discontinuous transmission and/or discontinuous reception in time division duplex (TDD) systems that may have data transmission formats dynamically reconfigured. An initial uplink-downlink (UL-DL) configuration for TDD communication between an eNB and user equipment (UE) may be established. This initial UL-DL configuration may be reconfigured to a different UL-DL configuration for one or more UEs in communication with the eNB. When a UE switches to discontinuous reception (DRX) mode, it may monitor control information from the eNB during DRX on periods, a frequency of the DRX on periods based on a reference UL-DL configuration irrespective of any reconfiguration of UL-DL configuration for a particular UE. In some aspects, a UE that is operating in a UL-DL reconfiguration mode may, upon entering DRX mode, autonomously discontinue operating in the UL-DL reconfiguration mode.

    SIGNALING OF ENHANCED POWER CONTROL FOR eIMTA INTERFERENCE MITIGATION
    10.
    发明申请
    SIGNALING OF ENHANCED POWER CONTROL FOR eIMTA INTERFERENCE MITIGATION 审中-公开
    用于eIMTA干扰消除的增强功率控制的信号

    公开(公告)号:US20160066288A1

    公开(公告)日:2016-03-03

    申请号:US14781159

    申请日:2014-05-09

    摘要: Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.

    摘要翻译: 在时分双工(TDD)无线通信系统中描述了用于干扰减轻的方法,系统和设备。 可以使用系统来识别要发送的TDD子帧的第一和第二子帧类型。 可以基于特定子帧的相邻小区中的传输方向来识别与每个子帧类型相关联的不同功率控制参数。 要发送的一个或多个TDD子帧可以被识别为第一或第二子帧类型,并且功率控制可以根据与子帧类型相关联的功率控制参数应用于所发送的子帧。 要应用于每种类型的子帧的子帧和功率控制参数的识别可以例如被发送到用户设备(UE)。 信息可以例如经由无线电资源控制(RRC)信令或经由物理层控制信道被发送到UE。