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    Dedicated reference signal design for network MIMO
    83.
    发明授权
    Dedicated reference signal design for network MIMO 有权

    公开(公告)号：US09391747B2

    公开(公告)日：2016-07-12

    申请号：US14027021

    申请日：2013-09-13

    Applicant: QUALCOMM Incorporated

    Inventor： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

    IPC: H04L5/00 ,  H04B7/02 ,  H04W72/00 ,  H04W84/04

    CPC classification number: H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04W72/005 ,  H04W84/04

    Abstract: Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols.

    METHOD AND APPARATUS OF 128-DSQ DE-MAPPING IN 10GBASE-T SYSTEM
    84.
    发明申请
    METHOD AND APPARATUS OF 128-DSQ DE-MAPPING IN 10GBASE-T SYSTEM 审中-公开
    在10GBASE-T系统中128-DSQ去映射的方法和装置

    公开(公告)号：US20160182273A1

    公开(公告)日：2016-06-23

    申请号：US14910569

    申请日：2013-09-10

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jian Li ,  Fuyun Ling ,  Changlong Xu ,  Yin Huang ,  Yisheng Xue ,  Jilei Hou

    IPC: H04L27/38 ,  H04L1/00

    CPC classification number: H04L27/38 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0058 ,  H04L5/12 ,  H04L25/03178 ,  H04L25/067

    Abstract: A method and apparatus for demapping a double squared quadrature amplitude modulated (DSQ) symbol is disclosed. One or more first log likelihood ratios (LLRs) are determined, for a first subset of constellation points of a corresponding DSQ constellation, using an LLR approximation. One or more second LLRs are determined, for a second subset of constellation points of the DSQ constellation, using a lookup table. The DSQ symbol is then demapped to one of a plurality of constellation points of the DSQ constellation based on the first and second LLRs. For some embodiments, the first subset of constellation points may correspond with an inner region of the DSQ constellation and the second subset of constellation points may correspond with an outer region of the DSQ constellation.

    Abstract translation: 公开了一种用于解映射双正交幅度调制（DSQ）符号的方法和装置。 对于对应DSQ星座的星座点的第一子集，使用LLR近似来确定一个或多个第一对数似然比（LLR）。 对于DSQ星座的星座点的第二子集，使用查找表来确定一个或多个第二LLR。 然后，基于第一和第二LLR，DSQ符号被映射到DSQ星座的多个星座点中的一个。 对于一些实施例，星座点的第一子集可以对应于DSQ星座的内部区域，并且星座点的第二子集可以对应于DSQ星座图的外部区域。

    TWO-DIMENSIONAL DISCRETE FOURIER TRANSFORM (2D-DFT) BASED CODEBOOK FOR ELEVATION BEAMFORMING
    85.
    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

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

    Inventor： Peng Cheng ,  Chao Wei ,  Neng Wang ,  Jilei Hou

    IPC: H04B7/04 ,  H04L27/26

    CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04L27/2628

    Abstract: 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.

    Abstract translation: 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。

    Dedicated reference signal design for network MIMO
    86.
    发明授权
    Dedicated reference signal design for network MIMO 有权

    公开(公告)号：US09337976B2

    公开(公告)日：2016-05-10

    申请号：US14593382

    申请日：2015-01-09

    Applicant: QUALCOMM Incorporated

    Inventor： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

    IPC: H04L5/00 ,  H04B7/02 ,  H04W72/00 ,  H04W84/04

    CPC classification number: H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04W72/005 ,  H04W84/04

    Abstract: Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols.

    HYBRID RECONFIGURATION METHODS AND APPARATUS FOR TDD ADAPTATION
    87.
    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

    Applicant: Chao Wei ,  Neng Wang ,  Minghai Feng ,  Jilei Hou ,  Qualcomm Incorporated

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

    IPC: H04W72/04 ,  H04W76/04 ,  H04L1/18 ,  H04L5/14 ,  H04W72/14

    CPC classification number: H04W72/0446 ,  H04L1/1614 ,  H04L1/1812 ,  H04L1/1854 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/14 ,  H04W76/27 ,  H04W88/02

    Abstract: 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.

    Abstract translation: 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。

    INTRA-CLUSTER COORDINATION FOR CELL CLUSTERING INTERFERENCE MITIGATION
    88.
    发明申请
    INTRA-CLUSTER COORDINATION FOR CELL CLUSTERING INTERFERENCE MITIGATION 审中-公开
    细胞聚集干扰减缓的内部聚类协调

    公开(公告)号：US20150334704A1

    公开(公告)日：2015-11-19

    申请号：US14650669

    申请日：2014-01-09

    Applicant: Chao WEI ,  Jiming GUO ,  Jilei HOU ,  QUALCOMM INCORPORATED

    Inventor： Chao Wei ,  Jiming Guo ,  Jilei Hou

    IPC: H04W72/04 ,  H04W24/02 ,  H04L5/14

    CPC classification number: H04W72/0446 ,  H04L5/14 ,  H04W24/02

    Abstract: Dynamic intra-cluster coordination for TDD UL-DL reconfiguration using distributed TDD UL-DL reconfiguration techniques and/or new physical layer signaling. Cell weighting techniques may be used so that distributed TDD UL-DL reconfiguration of the cell cluster can be weighted towards cells of the cluster with higher load. Cells within a cell cluster may independently determine their preferred TDD UL-DL reconfiguration and one or more cells of the cluster may be eligible cells for determining the TDD UL-DL reconfiguration for the cluster. Special subframes may be used for transmission of TDD UL-DL reconfiguration messages from the configuring cell and transmission of ACK messages from other cells of the cluster. The TDD UL-DL reconfiguration message may be an orthogonal sequence based on a signature determined by the cell ID of the configuring cell.

    Abstract translation: 使用分布式TDD UL-DL重配置技术和/或新的物理层信令的TDD UL-DL重配置的动态集群内协调。 可以使用小区加权技术，使得小区集群的分布式TDD UL-DL重新配置可以以更高的负载向集群的小区加权。 小区簇内的小区可以独立地确定其优选的TDD UL-DL重新配置，并且该簇的一个或多个小区可以是用于确定簇的TDD UL-DL重新配置的合格小区。 可以将特殊子帧用于从配置小区发送TDD UL-DL重新配置消息，并从集群的其他小区发送ACK消息。 TDD UL-DL重配置消息可以是基于由配置小区的小区ID确定的签名的正交序列。

    INTERFERENCE MITIGATION IN ASYMMETRIC LTE DEPLOYMENT
    90.
    发明申请
    INTERFERENCE MITIGATION IN ASYMMETRIC LTE DEPLOYMENT 有权
    不对称LTE部署中的干扰减缓

    公开(公告)号：US20150189666A1

    公开(公告)日：2015-07-02

    申请号：US14404437

    申请日：2013-05-24

    Applicant: QUALCOMM INCORPORATED

    Inventor： Neng Wang ,  Jilei Hou ,  Jiming Guo ,  Minghai Feng

    IPC: H04W72/08 ,  H04W72/04

    CPC classification number: H04W72/082 ,  H04B17/309 ,  H04B17/327 ,  H04W52/242 ,  H04W52/244 ,  H04W52/50 ,  H04W72/0406 ,  H04W72/1226

    Abstract: Interference mitigation solutions are disclosed for interference experienced based on asymmetric uplink (UL)/downlink (DL) slot configuration. The aggressor/victim network entities are identified using either measurement or static/semi-static means, such that the victim network entities that may be impacted by interference from aggressor network entity transmissions are identified. Inter Cell Interference Coordination (ICIC) mechanisms are extended to negotiate and address scheduling that intelligently mitigates interference that occurs in the colliding slots.

    Abstract translation: 针对基于不对称上行链路（UL）/下行链路（DL）时隙配置所经历的干扰，公开了干扰减轻解决方案。 攻击者/受害者网络实体使用测量或静态/半静态手段来识别，从而识别可能受侵略者网络实体传输的干扰影响的受害者网络实体。 Intercell Interference Coordination（ICIC）机制被扩展到协商和地址调度，智能地减轻碰撞槽中发生的干扰。

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