公开(公告)号：US20160056907A1

公开(公告)日：2016-02-25

申请号：US14781157

申请日：2014-05-08

Applicant: Chao WEI ,  Minghai FENG ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Chao Wei ,  Minghai Feng ,  Neng Wang ,  Jilei Hou

IPC: H04J11/00 ,  H04L5/14 ,  H04J3/16

CPC classification number: H04J11/005 ,  H04J3/1694 ,  H04L5/14 ,  H04W16/10 ,  H04W72/1226

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160029358A1

公开(公告)日：2016-01-28

申请号：US14773869

申请日：2013-03-15

Applicant: Jilei HOU ,  Neng WANG ,  Chao WEI ,  QUALCOMM INCORPORATED

Inventor： Jilei Hou ,  Neng Wang ,  Chao Wei

IPC: H04W72/04 ,  H04W74/08 ,  H04B7/06

CPC classification number: H04W72/046 ,  H04B7/0695 ,  H04W74/0833

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150327324A1

公开(公告)日：2015-11-12

申请号：US14654660

申请日：2014-01-27

Applicant: Chao WEI ,  Xipeng ZHU ,  Jilei HOU ,  Neng WANG ,  QUALCOMM INCORPORATED

Inventor： Chao Wei ,  Xipeng Zhu ,  Jilei Hou ,  Neng Wang

IPC: H04W76/04 ,  H04W74/00

CPC classification number: H04W74/002 ,  H04W52/02 ,  H04W52/0216 ,  H04W52/0235 ,  H04W76/28 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/25

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150270933A1

公开(公告)日：2015-09-24

申请号：US14429710

申请日：2013-04-07

Applicant: Minghai FENG ,  Jiming GUO ,  Neng WANG ,  Jilei HOU ,  Hao XU ,  Peter GAAL ,  QUALCOMM INCORPORATED

Inventor： Minghai Feng ,  Jiming Guo ,  Neng Wang ,  Jilei Hou ,  Hao Xu ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04L5/0032 ,  H04B7/2656 ,  H04L5/14 ,  H04W72/0413

Abstract: 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.

Abstract translation: 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。