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    Feedback of control information for multiple carriers
    32.
    发明授权
    Feedback of control information for multiple carriers 有权

    公开(公告)号：US10420082B2

    公开(公告)日：2019-09-17

    申请号：US14743211

    申请日：2015-06-18

    Applicant: QUALCOMM Incorporated

    Inventor： Xiliang Luo ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Xiaoxia Zhang ,  Hao Xu ,  Juan Montojo

    IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

    Abstract: Techniques for sending control information relating to multiple downlink carriers and data on a single uplink carrier are described. A user equipment (UE) may be scheduled to transmit on a designated uplink carrier. The UE can multiplex control information for multiple downlink carriers with data for transmission on the uplink carrier in a same subframe. Multiplexing may be performed according to a type of the control information and/or an ordering, priority, or association of the downlink carriers. The UE can selectively encode the control information separately for each downlink carrier and/or jointly across downlink carriers. The control information may be mapped to a single layer or multiple layers of a data channel. The UE may send the multiplexed control information and data on the data channel in the subframe while maintaining a single-carrier waveform.

    Sample selection for secondary synchronization signal (SSS) detection
    33.
    发明授权
    Sample selection for secondary synchronization signal (SSS) detection 有权

    公开(公告)号：US09820245B2

    公开(公告)日：2017-11-14

    申请号：US14181953

    申请日：2014-02-17

    Applicant: QUALCOMM Incorporated

    Inventor： Tao Luo ,  Kapil Bhattad ,  Xiaoxia Zhang ,  Taesang Yoo ,  Xiliang Luo ,  Ke Liu

    IPC: H04W72/04 ,  H04W56/00 ,  H04J11/00 ,  H04W24/02

    CPC classification number: H04W56/001 ,  H04J11/005 ,  H04J11/0069 ,  H04J11/0093 ,  H04W24/02 ,  H04W72/042

    Abstract: Methods and apparatus for selecting samples for secondary synchronization signal (SSS) detection are described. Several alternatives are provided for efficient cell identifier detection. In a first alternative, multiple bursts of a signal received from a cell are sampled with non-uniform spacing between sampling intervals to determine a sequence for cell identification. In a second alternative, samples of a first and a second signal received from a stronger cell are cancelled, and a sequence for detecting a weaker cell is determined by reducing effects of the samples of a third signal received from the weaker cell which do not overlap with the primary synchronization signal (PSS) or SSS of the stronger cell. In a third alternative, a sequence for detecting a weaker cell is determined by reducing effects of any sampled bursts that correspond to a high transmission power portion of a signal from a stronger cell.

    Sub-band dependent resource management
    34.
    发明授权
    Sub-band dependent resource management 有权

    公开(公告)号：US09648625B2

    公开(公告)日：2017-05-09

    申请号：US14594550

    申请日：2015-01-12

    Applicant: QUALCOMM Incorporated

    Inventor： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

    IPC: H04W72/04 ,  H04L5/00 ,  H04W52/24 ,  H04W52/34

    CPC classification number: H04W72/0486 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0092 ,  H04W52/248 ,  H04W52/34

    Abstract: A system and method for facilitating resource management in OFDM systems is provided. The system permits different and flexible resource cell metric operations levels (e.g. uplink load management, admission control, congestion control, signal handoff control) for different sub-bands. For the uplink load management, there are multiple distinct load operation points (e.g. IoT, RoT) per sub-band group instead of the same operation level across the entire available band. The sub-band groups encompass the entire band. The facilitation system also comprises a variety of transmitting protocols, command increment variable stepsize methods and robust command response methods. The system thus provides more flexible reverse link resource management and more efficient utilization of the bandwidth.

    DRX wakeup rule in an eICIC environment
    35.
    发明授权
    DRX wakeup rule in an eICIC environment 有权
    在eICIC环境中的DRX唤醒规则

    公开(公告)号：US09402273B2

    公开(公告)日：2016-07-26

    申请号：US14139803

    申请日：2013-12-23

    Applicant: QUALCOMM Incorporated

    Inventor： Amir Farajidana ,  Xiliang Luo ,  Alexei Yurievitch Gorokhov ,  Hisham A. Mahmoud ,  Keith William Saints

    IPC: H04W76/04 ,  H04W24/08 ,  H04W52/02

    CPC classification number: H04W76/048 ,  H04W24/08 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/24

    Abstract: Methods, systems, and devices are described for a UE to determine a DRX wakeup rule in an eICIC environment. A UE may identify a measurement period associated with reduced interference from one or more cells in a wireless communications network. The cells may be a serving cell or a neighbor cell. The measurement period may be identified based on eICIC data available to the UE. The eICIC data may be sent to the UE by a serving cell and/or determined by the UE. The UE may power up a wireless modem to perform a warm-up measurement of the serving cell during the identified measurement period prior to transitioning the UE to a DRX on state.

    Abstract translation: 描述了用于UE在eICIC环境中确定DRX唤醒规则的方法，系统和设备。 UE可以识别与无线通信网络中的一个或多个小区的减少的干扰相关联的测量周期。 小区可以是服务小区或邻居小区。 可以基于UE可用的eICIC数据来识别测量周期。 eICIC数据可以由服务小区发送给UE，和/或由UE确定。 在将UE转换到DRX打开状态之前，UE可以在识别的测量周期期间为无线调制解调器上电以执行服务小区的预热测量。

    USER EQUIPMENT REFERENCE SIGNAL-BASED TIMING ESTIMATION
    37.
    发明申请
    USER EQUIPMENT REFERENCE SIGNAL-BASED TIMING ESTIMATION 有权
    用户设备参考信号的时序估计

    公开(公告)号：US20130156013A1

    公开(公告)日：2013-06-20

    申请号：US13678332

    申请日：2012-11-15

    Applicant: Qualcomm Incorporated

    Inventor： Yi Huang ,  Tao Luo ,  Taesang Yoo ,  Xiliang Luo

    IPC: H04W72/04

    CPC classification number: H04W72/04 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0073 ,  H04L27/2655 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675

    Abstract: Estimation of timing errors is disclosed that uses user equipment reference signals (UERSs). A UE models each channel in a user equipment reference signal (UERS) as a channel on an adjacent UERS tone multiplied by a phase ramping term. This phase ramping term is determined using an estimator on the modeled channels. The UE then determines the equivalent timing error by mapping the phase ramping terms into the estimated timing errors in the time domain. In coordinated multipoint (CoMP) systems, the UERS-based timing error may be used to identify an aligned common reference signal (CRS) associated with the network entity transmitting the data. With this determination, the UE may estimate a CRS-based timing error and either substitute the CRS-based timing error for the UERS-based timing error or calculate a further average timing error based on both the CRS-based and UERS-based timing errors.

    Abstract translation: 公开了使用用户设备参考信号（UERS）的定时误差的估计。 UE将用户设备参考信号（UERS）中的每个信道建模为在相邻UERS音调乘以相位斜变项的信道。 该相位斜变项是使用建模通道上的估计器确定的。 然后，UE通过将相位斜变项映射到时域中的估计定时误差来确定等效定时误差。 在协调多点（CoMP）系统中，基于UERS的定时误差可以用于识别与发送数据的网络实体相关联的对准的公共参考信号（CRS）。 通过该确定，UE可以估计基于CRS的定时误差，并且基于用于基于UERS的定时误差替代基于CRS的定时误差，或者基于基于CRS和基于UERS的定时误差来计算另外的平均定时误差 。

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