DUAL THRESHOLD BASED CELL CLUSTERING INTERFERENCE MITIGATION FOR eIMTA
    63.
    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
    64.
    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
    65.
    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。

    Master-slave architecture in a closed loop transmit diversity scheme
    66.
    发明授权
    Master-slave architecture in a closed loop transmit diversity scheme 有权
    主从结构在闭环发射分集方案

    公开(公告)号:US09178578B2

    公开(公告)日:2015-11-03

    申请号:US13346610

    申请日:2012-01-09

    摘要: A base station receiver, a computer program product operable at a base station, and a method operable at a base station receiver, for receiving uplink transmit diversity transmissions utilizing a master/slave scheme at the receiver. One or more tracking loops, such as a searcher task, a time tracking loop, or a frequency tracking loop may be implemented at the base station receiver to determine compensation values, such as finger timings for a rake receiver or frequency compensation values, in accordance with characteristics of a first received pilot channel transmitted utilizing a first precoding weight vector. Here, corresponding compensation values may be derived for the reception of a secondary pilot channel transmitted utilizing an precoding weight vector orthogonal to the first precoding weight vector, simply based on those determined for the first pilot channel.

    摘要翻译: 基站接收机,在基站可操作的计算机程序产品以及可在基站接收机操作的方法,用于在接收机处利用主/从方案接收上行链路发射分集传输。 可以在基站接收机处实现一个或多个跟踪环路,例如搜索器任务,时间跟踪环路或频率跟踪环路,以确定补偿值,例如用于耙式接收机的手指定时或频率补偿值 具有利用第一预编码权重向量发送的第一接收导频信道的特性。 这里,可以简单地基于对于第一导频信道确定的那些,来导出利用与第一预编码权重向量正交的预编码权重向量发送的次级导频信道的相应的补偿值。

    METHOD AND APPARATUS FOR SEPARATING A CELL CLUSTER FOR LTE EIMTA INTERFERENCE MITIGATION
    67.
    发明申请
    METHOD AND APPARATUS FOR SEPARATING A CELL CLUSTER FOR LTE EIMTA INTERFERENCE MITIGATION 审中-公开
    用于分离用于LTE EIMTA干扰减缓的小区聚类的方法和装置

    公开(公告)号:US20150270933A1

    公开(公告)日:2015-09-24

    申请号:US14429710

    申请日:2013-04-07

    IPC分类号: H04L5/00 H04W72/04 H04L5/14

    摘要: A method, a computer program product, and an apparatus for separating a cell cluster to two or more cell clusters are provided. The cell cluster may be separated into two or more cell clusters in order to mitigate interference between cells while allowing for TDD subframe configuration flexibility. The method identifies at least one separating cell in a cell cluster, the cell cluster including at least two cells having a common TDD subframe configuration, where a coupling loss between one cell in the cell cluster and at least another cell in the cell cluster is lower than a predefined threshold. The method separates the cell cluster based on the at least one separating cell into at least a first cell cluster and a second cell cluster and sets a first TDD subframe configuration for the first cell cluster and a second TDD subframe configuration for the second cell cluster.

    摘要翻译: 提供了一种方法,计算机程序产品和用于将单元簇分离成两个或多个单元簇的装置。 小区簇可以被分成两个或更多个小区簇,以便减轻小区之间的干扰,同时允许TDD子帧配置灵活性。 该方法识别小区簇中的至少一个分离小区,小区簇包括具有公共TDD子帧配置的至少两个小区,其中小区簇中的一个小区与小区簇中的至少另一个小区之间的耦合损耗较低 比预定义的阈值。 该方法将基于至少一个分离小区的小区簇分为至少第一小区群集和第二小区群集,并为第二小区群集设置第一小区群集的第一TDD子帧配置和第二TDD子帧配置。

    Apparatus and method for enabling uplink beamforming transit diversity
    68.
    发明授权
    Apparatus and method for enabling uplink beamforming transit diversity 有权
    用于实现上行波束成形中转分集的装置和方法

    公开(公告)号:US09059760B2

    公开(公告)日:2015-06-16

    申请号:US13019448

    申请日:2011-02-02

    摘要: A method and apparatus for enabling uplink beamforming transmit diversity is provided. The method may include receiving, by a wireless communications device (WCD), a beamforming weight vector in response to transmission by the WCD of two or more pilot channels, applying the received beamforming weight vector to at least one of a first of the two or more pilot channels, one or more data channels, or one or more control channels, and transmitting, using two or more antennas, at least one of the one or more data channels or at least one of the one or more control channels, wherein the number of pilot channels is greater than or equal to the number of antennas.

    摘要翻译: 提供了一种用于实现上行链路波束成形发射分集的方法和装置。 该方法可以包括响应于WCD的两个或多个导频信道的传输,由无线通信设备(WCD)接收波束成形加权向量,将接收到的波束成形加权向量应用于两者中的至少一个或 更多导频信道,一个或多个数据信道或一个或多个控制信道,以及使用两个或更多个天线发送所述一个或多个数据信道中的至少一个或所述一个或多个控制信道中的至少一个,其中, 导频信道数大于或等于天线数。