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    CHANNEL STATE INFORMATION COMPUTATION FOR ENHANCED INTER-CELL INTERFERENCE COORDINATION
    22.
    发明申请
    CHANNEL STATE INFORMATION COMPUTATION FOR ENHANCED INTER-CELL INTERFERENCE COORDINATION 审中-公开
    通道状态信息计算，用于增强细胞间干扰协调

    公开(公告)号：US20130114441A1

    公开(公告)日：2013-05-09

    申请号：US13608891

    申请日：2012-09-10

    申请人： Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei

    发明人： Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei

    IPC分类号： H04W24/00

    CPC分类号： H04L1/0026 ,  H04B17/345 ,  H04L5/0073 ,  H04L25/0206 ,  H04L25/022

    摘要： A delayed channel estimation is a channel state information (CSI) reference subframe having an index (NCSI—ref) belonging to NCSI—ref=N−4−k, where N is the subframe index on which the CSI is to be transmitted on an uplink, and k is the smallest value of k>=0, such that N−4−k belongs to a given configuration set. When k is too large, the selected CSI reference subframe is too outdated to produce accurate CSI. An undelayed channel estimation is a CSI reference subframe having an index (NCSI—ref) belonging to NCSI—ref=N−4. When the CSI reference subframe N−4 does not belong to the given subframe restriction subset, the selected channel estimate may be too noisy to produce accurate CSI. A method for CSI computation for enhanced inter-cell interference coordination (eICIC) selects between a delayed channel estimation and an undelayed channel estimation for computing CSI, for example, based on a signal metric. The CSI is computed with a selected channel estimation.

    摘要翻译： 延迟信道估计是具有属于NCSI-ref = N-4-k的索引（NCSI-ref）的信道状态信息（CSI）参考子帧，其中N是要在其上发送CSI的子帧索引 上行链路，k是k> = 0的最小值，使得N-4-k属于给定的配置集合。 当k太大时，所选择的CSI参考子帧太过时，不能产生准确的CSI。 未延迟的信道估计是具有属于NCSI-ref = N-4的索引（NCSI-ref）的CSI参考子帧。 当CSI参考子帧N-4不属于给定子帧限制子集时，所选择的信道估计可能太嘈杂以产生准确的CSI。 用于增强小区间干扰协调（eICIC）的CSI计算的方法例如基于信号度量在延迟信道估计和用于计算CSI的未延迟信道估计之间进行选择。 使用所选择的信道估计来计算CSI。

    RADIO LINK MONITORING (RLM) AND REFERENCE SIGNAL RECEIVED POWER (RSRP) MEASUREMENT FOR HETEROGENEOUS NETWORKS
    23.
    发明申请
    RADIO LINK MONITORING (RLM) AND REFERENCE SIGNAL RECEIVED POWER (RSRP) MEASUREMENT FOR HETEROGENEOUS NETWORKS 有权
    无线电链路监测（RLM）和参考信号接收功率（RSRP）测量异构网络

    公开(公告)号：US20110256861A1

    公开(公告)日：2011-10-20

    申请号：US13084806

    申请日：2011-04-12

    申请人： Taesang Yoo ,  Tao Luo ,  Xiliang Luo

    发明人： Taesang Yoo ,  Tao Luo ,  Xiliang Luo

    IPC分类号： H04W24/00

    CPC分类号： H04W24/08 ,  H04B17/318 ,  H04B17/327 ,  H04B17/382 ,  H04L5/005 ,  H04L5/0094 ,  H04L25/02 ,  H04W24/00 ,  H04W72/04 ,  H04W72/042

    摘要： A method for communicating in an advanced long term evolution (LTE-A) network using common reference signal (CRS) resources associated with different interference levels due to resource partitioning is disclosed. Signals are received from an eNodeB indicating a subset of CRS resources for radio link monitoring (RLM) and/or reference signal received power (RSRP) measuring. The subset of CRS resources includes the CRS resources expected to have lower interference from the interfering eNodeBs. RLM and/or RSRP measurements are performed based on the indicated subset.

    摘要翻译： 公开了一种使用由于资源划分引起的与不同干扰电平相关联的共同参考信号（CRS）资源在高级长期演进（LTE-A）网络中进行通信的方法。 从指示用于无线电链路监视（RLM）和/或参考信号接收功率（RSRP）测量的CRS资源的子集的eNodeB接收信号。 CRS资源的子集包括预期来自干扰eNodeB的较低干扰的CRS资源。 基于所指示的子集执行RLM和/或RSRP测量。

    PRECODING CONTROL CHANNELS IN WIRELESS NETWORKS
    26.
    发明申请
    PRECODING CONTROL CHANNELS IN WIRELESS NETWORKS 有权
    在无线网络中预测控制信道

    公开(公告)号：US20110141927A1

    公开(公告)日：2011-06-16

    申请号：US12816708

    申请日：2010-06-16

    申请人： Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo ,  Xiaoxia Zhang ,  Kibeom Seong

    发明人： Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo ,  Xiaoxia Zhang ,  Kibeom Seong

    IPC分类号： H04L12/26 ,  H04W4/00

    CPC分类号： H04L25/03343 ,  H04B7/0413 ,  H04B7/0456 ,  H04L5/0048 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate precoding signals transmitted over downlink control channels to provide transmit diversity. A dedicated reference signal (DRS) related to a wireless device can additionally be precoded such that the wireless device can determine a precoder or related parameters based at least in part on performing a channel estimate for the precoded DRS signal. The wireless device can utilize the determined precoder or related parameters to decode precoded signals received over downlink control channel resources. Additionally or alternatively, an access point can signal a sequence of precoders to the wireless device. The access point can cycle through the sequence of precoders to precode signals for transmission over downlink control channel resources, and the wireless device can decode the signals based at least in part on similarly cycling through the precoders for received signals.

    摘要翻译： 描述了促进预编码在下行链路控制信道上发送的信号以提供发射分集的系统和方法。 可以另外对与无线设备相关的专用参考信号（DRS）进行预编码，使得无线设备可以至少部分地基于对预编码的DRS信号执行信道估计来确定预编码器或相关参数。 无线设备可以利用所确定的预编码器或相关参数来解码通过下行链路控制信道资源接收的预编码信号。 附加地或替代地，接入点可以向无线设备发送一系列预编码器。 接入点可以循环通过预编码器序列来预编码信号以在下行链路控制信道资源上传输，并且无线设备可以至少部分地基于类似地循环通过用于接收信号的预编码器来对信号进行解码。

    Precoding control channels in wireless networks
    27.
    发明授权
    Precoding control channels in wireless networks 有权
    无线网络中的预编码控制信道

    公开(公告)号：US08848603B2

    公开(公告)日：2014-09-30

    申请号：US12816708

    申请日：2010-06-16

    申请人： Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo ,  Xiaoxia Zhang ,  Kibeom Seong

    发明人： Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo ,  Xiaoxia Zhang ,  Kibeom Seong

    IPC分类号： H04J1/16 ,  H04L25/03 ,  H04L5/00

    CPC分类号： H04L25/03343 ,  H04B7/0413 ,  H04B7/0456 ,  H04L5/0048 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate precoding signals transmitted over downlink control channels to provide transmit diversity. A dedicated reference signal (DRS) related to a wireless device can additionally be precoded such that the wireless device can determine a precoder or related parameters based at least in part on performing a channel estimate for the precoded DRS signal. The wireless device can utilize the determined precoder or related parameters to decode precoded signals received over downlink control channel resources. Additionally or alternatively, an access point can signal a sequence of precoders to the wireless device. The access point can cycle through the sequence of precoders to precode signals for transmission over downlink control channel resources, and the wireless device can decode the signals based at least in part on similarly cycling through the precoders for received signals.

    摘要翻译： 描述了促进预编码在下行链路控制信道上发送的信号以提供发射分集的系统和方法。 可以另外对与无线设备相关的专用参考信号（DRS）进行预编码，使得无线设备可以至少部分地基于对预编码的DRS信号执行信道估计来确定预编码器或相关参数。 无线设备可以利用所确定的预编码器或相关参数来解码通过下行链路控制信道资源接收的预编码信号。 附加地或替代地，接入点可以向无线设备发送一系列预编码器。 接入点可以循环通过预编码器序列来预编码信号以在下行链路控制信道资源上传输，并且无线设备可以至少部分地基于类似地循环通过用于接收信号的预编码器来对信号进行解码。

    Transmission of UE-specific reference signal for wireless communication
    28.
    发明授权
    Transmission of UE-specific reference signal for wireless communication 失效
    用于无线通信的UE专用参考信号的传输

    公开(公告)号：US08576692B2

    公开(公告)日：2013-11-05

    申请号：US12878983

    申请日：2010-09-09

    申请人： Xiaoxia Zhang ,  Yongbin Wei ,  Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo

    发明人： Xiaoxia Zhang ,  Yongbin Wei ,  Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo

    IPC分类号： H04J11/00

    CPC分类号： H04L5/0051 ,  H04L5/0032 ,  H04L5/0037

    摘要： Techniques for transmitting UE-specific reference signals (UE-RSs) in a wireless network are described. In an aspect, a UE-RS may be transmitted in different manners depending on the number of layers used for data transmission. In one design, a cell may determine subcarriers for a UE-RS based on a frequency shift if data is transmitted on one layer and based on a predetermined set of subcarriers (with no frequency shift) if data is transmitted on multiple layers. In another aspect, a UE-RS may be transmitted on subcarriers determined based on a frequency shift for data transmission on multiple layers. In yet another aspect, a UE-RS may be transmitted from a plurality of cells to a UE for coordinated multi-point (CoMP). In yet another aspect, a UE-RS may be transmitted in a data section of a subframe including only the data section.

    摘要翻译： 描述了用于在无线网络中传送UE专用参考信号（UE-RS）的技术。 在一方面，可以根据用于数据传输的层数以不同的方式发送UE-RS。 在一种设计中，如果在多层上传输数据，则基于如果在一层上传送数据并且基于预定的一组子载波（无频移），则小区可以基于频移来确定UE-RS的子载波。 在另一方面，可以在基于用于多层数据传输的频移确定的子载波上发送UE-RS。 在另一方面，UE-RS可以从多个小区发送到用于协调多点（CoMP）的UE。 在另一方面，可以在仅包括数据部分的子帧的数据部分中发送UE-RS。

    TRANSMISSION OF UE-SPECIFIC REFERENCE SIGNAL FOR WIRELESS COMMUNICATION
    29.
    发明申请
    TRANSMISSION OF UE-SPECIFIC REFERENCE SIGNAL FOR WIRELESS COMMUNICATION 失效
    用于无线通信的UE特定参考信号的传输

    公开(公告)号：US20110216842A1

    公开(公告)日：2011-09-08

    申请号：US12878983

    申请日：2010-09-09

    申请人： Xiaoxia Zhang ,  Yongbin Wei ,  Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo

    发明人： Xiaoxia Zhang ,  Yongbin Wei ,  Tao Luo ,  Dung Ngoc Doan ,  Taesang Yoo

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0051 ,  H04L5/0032 ,  H04L5/0037

    摘要： Techniques for transmitting UE-specific reference signals (UE-RSs) in a wireless network are described. In an aspect, a UE-RS may be transmitted in different manners depending on the number of layers used for data transmission. In one design, a cell may determine subcarriers for a UE-RS based on a frequency shift if data is transmitted on one layer and based on a predetermined set of subcarriers (with no frequency shift) if data is transmitted on multiple layers. In another aspect, a UE-RS may be transmitted on subcarriers determined based on a frequency shift for data transmission on multiple layers. In yet another aspect, a UE-RS may be transmitted from a plurality of cells to a UE for coordinated multi-point (CoMP). In yet another aspect, a UE-RS may be transmitted in a data section of a subframe including only the data section.

    摘要翻译： 描述了用于在无线网络中传送UE专用参考信号（UE-RS）的技术。 在一方面，可以根据用于数据传输的层数以不同的方式来发送UE-RS。 在一种设计中，如果在多层上传输数据，则基于如果在一层上传送数据并且基于预定的一组子载波（无频移），则小区可以基于频移来确定UE-RS的子载波。 在另一方面，可以在基于用于多层数据传输的频移确定的子载波上发送UE-RS。 在另一方面，UE-RS可以从多个小区发送到用于协调多点（CoMP）的UE。 在另一方面，可以在仅包括数据部分的子帧的数据部分中发送UE-RS。

    INTERFERENCE MITIGATION BY PUNCTURING TRANSMISSION OF INTERFERING CELLS
    30.
    发明申请
    INTERFERENCE MITIGATION BY PUNCTURING TRANSMISSION OF INTERFERING CELLS 有权
    通过干扰细胞传播干扰减缓

    公开(公告)号：US20110190024A1

    公开(公告)日：2011-08-04

    申请号：US12853168

    申请日：2010-08-09

    申请人： Kibeom Seong ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Dung Ngoc Doan

    发明人： Kibeom Seong ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Dung Ngoc Doan

    IPC分类号： H04W52/04

    CPC分类号： H04W52/322 ,  H04L1/0045 ,  H04L1/0069 ,  H04L1/0072 ,  H04W52/244 ,  H04W72/082 ,  H04W84/045

    摘要： Systems and methodologies are described that facilitate controlling interference in a heterogeneous wireless communication environment. A Physical Broadcast Channel (PBCH) transmission from an interfering base station can be punctured based upon a puncturing pattern as a function of a cell identifier (ID) and a transmit time. Puncturing can be effectuated by applying power control. Thus, a punctured symbol or subframe can have a reduced transmit power or a transmit power set to zero. Further, the puncturing pattern can be defined on a subframe basis or on a symbol basis.

    摘要翻译： 描述了有助于控制异构无线通信环境中的干扰的系统和方法。 可以基于作为小区标识符（ID）和发送时间的函数的删截模式来对来自干扰基站的物理广播信道（PBCH）传输进行删截。 通过施加电源控制可以实现穿刺。 因此，打孔的符号或子帧可以具有降低的发射功率或设置为零的发射功率。 此外，可以基于子帧或基于符号来定义删截图案。