公开(公告)号：US10111111B2

公开(公告)日：2018-10-23

申请号：US12949020

申请日：2010-11-18

申请人： Taesang Yoo ,  Tao Luo ,  Xiaoxia Zhang ,  Ke Liu

发明人： Taesang Yoo ,  Tao Luo ,  Xiaoxia Zhang ,  Ke Liu

IPC分类号： H04W24/00 ,  H04W56/00

摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.

公开(公告)号：US20110286376A1

公开(公告)日：2011-11-24

申请号：US12949020

申请日：2010-11-18

申请人： Taesang Yoo ,  Tao Luo ,  Xiaoxia Zhang ,  Ke Liu

发明人： Taesang Yoo ,  Tao Luo ,  Xiaoxia Zhang ,  Ke Liu

IPC分类号： H04W56/00 ,  H04W4/08

CPC分类号： H04W24/00 ,  H04W56/00 ,  H04W56/0015 ,  H04W56/0035

摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的定时导出系统定时，相对于估计的系统定时为多个单元确定定时偏移， 并且使用定时偏移来处理从多个单元接收的信号。 此外，提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的频率导出载波频率，相对于多个单元确定频率偏移 使用频率偏移来处理估计的系统定时和从多个小区接收的信号。

公开(公告)号：US20110255486A1

公开(公告)日：2011-10-20

申请号：US12904952

申请日：2010-10-14

申请人： Tao Luo ,  Xiaoxia Zhang ,  Kibeom Seong ,  Ke Liu ,  Taesang Yoo

发明人： Tao Luo ,  Xiaoxia Zhang ,  Kibeom Seong ,  Ke Liu ,  Taesang Yoo

IPC分类号： H04W28/26

CPC分类号： H04W48/12 ,  H04W16/14 ,  H04W72/0406 ,  H04W72/0426 ,  H04W72/082 ,  H04W72/1289 ,  H04W84/045

摘要： Methods and apparatus for providing cross-cell signaling and/or coordination for interference mitigation in wireless communication networks are described. In one aspect, a UE associated with a serving eNB may receive control signaling from another non-serving eNB in a different cell. The control signaling may be consistent with a characteristic of the serving eNB and associated cell. In another aspect, multiple eNBs may coordinate transmission of DL resources to minimize collisions of control signaling resources.

摘要翻译： 描述了用于在无线通信网络中提供用于干扰减轻的跨小区信令和/或协调的方法和装置。 在一个方面，与服务eNB相关联的UE可以从不同小区中的另一非服务eNB接收控制信令。 控制信令可以与服务eNB和相关联的小区的特性一致。 在另一方面，多个eNB可协调DL资源的传输以最小化控制信令资源的冲突。

公开(公告)号：US09232462B2

公开(公告)日：2016-01-05

申请号：US12904952

申请日：2010-10-14

申请人： Tao Luo ,  Xiaoxia Zhang ,  Kibeom Seong ,  Ke Liu ,  Taesang Yoo

发明人： Tao Luo ,  Xiaoxia Zhang ,  Kibeom Seong ,  Ke Liu ,  Taesang Yoo

IPC分类号： H04W4/00 ,  H04W48/12 ,  H04W72/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04

CPC分类号： H04W48/12 ,  H04W16/14 ,  H04W72/0406 ,  H04W72/0426 ,  H04W72/082 ,  H04W72/1289 ,  H04W84/045

摘要： Methods and apparatus for providing cross-cell signaling and/or coordination for interference mitigation in wireless communication networks are described. In one aspect, a UE associated with a serving eNB may receive control signaling from another non-serving eNB in a different cell. The control signaling may be consistent with a characteristic of the serving eNB and associated cell. In another aspect, multiple eNBs may coordinate transmission of DL resources to minimize collisions of control signaling resources.

摘要翻译： 描述了用于在无线通信网络中提供用于干扰减轻的跨小区信令和/或协调的方法和装置。 在一个方面，与服务eNB相关联的UE可以从不同小区中的另一非服务eNB接收控制信令。 控制信令可以与服务eNB和相关联的小区的特性一致。 在另一方面，多个eNB可协调DL资源的传输以最小化控制信令资源的冲突。

公开(公告)号：US08934326B2

公开(公告)日：2015-01-13

申请号：US13467945

申请日：2012-05-09

申请人： Kapil Bhattad ,  Yi Huang ,  Tao Luo ,  Taesang Yoo

发明人： Kapil Bhattad ,  Yi Huang ,  Tao Luo ,  Taesang Yoo

IPC分类号： H04J1/12 ,  H04J11/00

CPC分类号： H04J11/005

摘要： Aspects of the disclosure are related to identifying whether an apparatus (e.g., base station, access point, etc.) is transmitting using a CRS based transmission scheme or a UE-RS based transmission scheme. Such detection may be necessary for PDSCH interference cancellation (IC) of a neighboring cell since a UE may not know which transmission scheme is used by the neighboring cell. For instance, the UE may know the transmission scheme of the serving cell, but the UE may not know the transmission scheme of a neighboring non-serving cell. As such, aspects of the disclosure provide for a blind detection algorithm to identify or determine a transmission mode or transmission scheme of a neighboring cell to then apply interference cancellation (IC) to an interfering signal received from the neighboring cell.

摘要翻译： 本公开的方面与识别装置（例如，基站，接入点等）是否正在使用基于CRS的传输方案或基于UE-RS的传输方案进行传输有关。 这样的检测对于相邻小区的PDSCH干扰消除（IC）可能是必要的，因为UE可能不知道相邻小区使用哪种传输方案。 例如，UE可以知道服务小区的传输方案，但是UE可能不知道相邻非服务小区的传输方案。 因此，本公开的方面提供盲检测算法来识别或确定相邻小区的传输模式或传输方案，然后将干扰消除（IC）应用于从相邻小区接收的干扰信号。

公开(公告)号：US20130107785A1

公开(公告)日：2013-05-02

申请号：US13447067

申请日：2012-04-13

申请人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Shivratna G. Srinivasan

发明人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Shivratna G. Srinivasan

IPC分类号： H04W4/00 ,  H04H20/71

CPC分类号： H04L27/2665 ,  H04J11/005 ,  H04L27/2675 ,  H04L27/2688 ,  H04L27/2691

摘要： A method, an apparatus, and a computer program product for wireless communication are provided for maintaining a time tracking loop (TTL) to increase an overall signal-to-noise ratio (SNR) of a signal. The signal includes a series of consecutive symbols, received via multiple signal paths with different delays in a subframe. When attempting to decode the signal, only part of a symbol for a signal path may be captured in a fast Fourier transform (FFT) window due to the multiple signal path delays, leading to inter-channel interference (ICI), inter-symbol interference (ISI), and/or power loss. The SNR may be increased by optimizing a FFT window position when decoding the signal. An optimal FFT window position may be based on a subframe type. Moreover, the SNR may be increased by performing a linear operation on samples of the symbol prior to performing the FFT.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，用于维持时间跟踪环（TTL）以增加信号的总体信噪比（SNR）。 该信号包括一系列连续符号，通过在子帧中具有不同延迟的多个信号路径接收。 当尝试对信号进行解码时，由于多路信号路径延迟，只能在快速傅里叶变换（FFT）窗口中捕获信号路径的一部分符号，从而导致信道间干扰（ICI），符号间干扰 （ISI）和/或功率损耗。 可以通过在对信号进行解码时优化FFT窗口位置来增加SNR。 最佳FFT窗口位置可以基于子帧类型。 此外，可以通过对执行FFT之前的符号的采样执行线性运算来增加SNR。

公开(公告)号：US20130114438A1

公开(公告)日：2013-05-09

申请号：US13467945

申请日：2012-05-09

申请人： Kapil Bhattad ,  Yi Huang ,  Tao Luo ,  Taesang Yoo

发明人： Kapil Bhattad ,  Yi Huang ,  Tao Luo ,  Taesang Yoo

IPC分类号： H04W24/00 ,  H04W4/00

CPC分类号： H04J11/005

摘要： Aspects of the disclosure are related to identifying whether an apparatus (e.g., base station, access point, etc.) is transmitting using a CRS based transmission scheme or a UE-RS based transmission scheme. Such detection may be necessary for PDSCH interference cancellation (IC) of a neighboring cell since a UE may not know which transmission scheme is used by the neighboring cell. For instance, the UE may know the transmission scheme of the serving cell, but the UE may not know the transmission scheme of a neighboring non-serving cell. As such, aspects of the disclosure provide for a blind detection algorithm to identify or determine a transmission mode or transmission scheme of a neighboring cell to then apply interference cancellation (IC) to an interfering signal received from the neighboring cell.

摘要翻译： 本公开的方面与识别装置（例如，基站，接入点等）是否正在使用基于CRS的传输方案或基于UE-RS的传输方案进行传输有关。 这样的检测对于相邻小区的PDSCH干扰消除（IC）可能是必要的，因为UE可能不知道相邻小区使用哪种传输方案。 例如，UE可以知道服务小区的传输方案，但是UE可能不知道相邻非服务小区的传输方案。 因此，本公开的方面提供盲检测算法来识别或确定相邻小区的传输模式或传输方案，然后将干扰消除（IC）应用于从邻近小区接收的干扰信号。

公开(公告)号：US08655282B2

公开(公告)日：2014-02-18

申请号：US13280142

申请日：2011-10-24

申请人： Xiliang Luo ,  Taesang Yoo ,  Tao Luo

发明人： Xiliang Luo ,  Taesang Yoo ,  Tao Luo

IPC分类号： H04W24/00

CPC分类号： H04L27/2691 ,  H04L5/0007 ,  H04L27/2657 ,  H04L27/2662

摘要： A frontend receiver of a user equipment (UE) is configured with multiple transform operations assigned to separate sets of cells. One set of cells includes the serving cell of the UE and at least one additional cell within a first offset range of the serving cell. Another set or sets of cells include additional interferer cells within another offset range of the serving cell. After tracking the common frequency/timing offsets of each set of cells the assigned transform operation for that set transforms the time domain samples into frequency domain symbols. The individual frequency/timing offsets for each cell within the set are then tracked.

摘要翻译： 用户设备（UE）的前端接收器被配置为分配给单独的单元组的多个变换操作。 一组小区包括UE的服务小区和服务小区的第一偏移范围内的至少一个附加小区。 另一组或多组单元包括在服务小区的另一偏移范围内的附加干扰信元。 在跟踪每组单元的公共频率/定时偏移之后，该组的分配变换操作将时域采样转换成频域符号。 然后跟踪集合内的每个单元的各个频率/定时偏移量。

公开(公告)号：US20110159914A1

公开(公告)日：2011-06-30

申请号：US12976499

申请日：2010-12-22

申请人： Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei ,  Naga Bhushan

发明人： Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei ,  Naga Bhushan

IPC分类号： H04W52/04

CPC分类号： H04W52/367 ,  H04W52/146 ,  H04W52/262 ,  H04W52/362

摘要： Methods and apparatus in a wireless communication system are described for receiving and processing transmit power control commands, where, for example, the response to the transmit power control commands is conditionally decoupled from at least one of a transmit bandwidth parameter, a transport format parameter and a power stepsize limit. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 描述了用于接收和处理发射功率控制命令的无线通信系统中的方法和装置，其中例如对发射功率控制命令的响应有条件地从发射带宽参数，传输格式参数和 功率限幅。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

公开(公告)号：US08712401B2

公开(公告)日：2014-04-29

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 ,  H04W72/04

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。