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61. 发明授权

US08718194B2 Method and system for efficient channel estimation 有权
标题翻译：高效信道估计的方法和系统
公开(公告)号：US08718194B2
公开(公告)日：2014-05-06
申请号：US12955802
申请日：2010-11-29
申请人： Dung Ngoc Doan , Tao Luo , Taesang Yoo , Yongbin Wei , Xiaoxia Zhang
发明人： Dung Ngoc Doan , Tao Luo , Taesang Yoo , Yongbin Wei , Xiaoxia Zhang
IPC分类号： H03K9/00
CPC分类号： H04L25/0232 , H04L5/005 , H04L5/0051 , H04L25/0204 , H04L25/0222 , H04L25/0242 , H04L25/0256
摘要： Aspects of the present disclosure describe an efficient channel estimation algorithm for high-speed processing of dedicated reference signals. The channel estimation algorithm may utilize one or more compressed interpolation matrices. The compressed interpolation matrices may be selected based on the Doppler value and signal to noise ratio (SNR) of the channel.
摘要翻译：本公开的方面描述了用于专用参考信号的高速处理的有效的信道估计算法。信道估计算法可以利用一个或多个压缩插值矩阵。可以基于信道的多普勒值和信噪比（SNR）来选择压缩内插矩阵。

62. 发明授权

US08675560B2 UE receiver reference signal processing that utilizes resource partitioning information 有权
标题翻译：利用资源划分信息的UE接收机参考信号处理
公开(公告)号：US08675560B2
公开(公告)日：2014-03-18
申请号：US13225121
申请日：2011-09-02
申请人： Taesang Yoo , Siddhartha Mallik , Tao Luo
发明人： Taesang Yoo , Siddhartha Mallik , Tao Luo
IPC分类号： H04W4/00
CPC分类号： H04W72/082 , H04L5/0023 , H04L5/0035 , H04L5/005 , H04L5/006 , H04L5/0073 , H04W16/32 , H04W72/0413
摘要： Communication in a dominant interference scenario may be supported by performing inter-cell interference coordination (ICIC). According to certain aspects of ICIC, resource coordination/partitioning may be performed to allocate resources to a serving Node B located near the vicinity of a strong interfering Node B. The interfering Node B may avoid transmitting on the allocated/protected resources, but transmissions from the interfering Node B on resources not allocated to the serving Node B (i.e., unprotected) may cause significant interference on cell-specific reference signal (CRS) tones of the serving Node B. Therefore, if the CRS tones of the unallocated/unprotected resources are used, performance degradation may result to various operations of the serving Node B. Therefore, certain aspects of the present disclosure provide techniques for a UE receiver in utilizing resource partitioning information (RPI) for performing CRS processing in a heterogeneous network (HetNet).
摘要翻译：可以通过执行小区间干扰协调（ICIC）来支持主要干扰场景中的通信。根据ICIC的某些方面，可以执行资源协调/划分以向位于强干扰节点B附近的服务节点B分配资源。干扰节点B可以避免在所分配/受保护资源上的传输，干扰节点B对未分配给服务节点B的资源（即未受保护的）可能对服务节点B的小区特定参考信号（CRS）音调造成显着的干扰。因此，如果未分配/未受保护的资源的CRS音调性能下降可能导致服务节点B的各种操作。因此，本公开的某些方面在利用用于在异构网络（HetNet）中执行CRS处理的资源划分信息（RPI）的情况下为UE接收机提供技术。

63. 发明授权

US08614981B2 Reporting of channel information to support coordinated multi-point data transmission 有权
标题翻译：报告信道信息，支持协调的多点数据传输
公开(公告)号：US08614981B2
公开(公告)日：2013-12-24
申请号：US13015532
申请日：2011-01-27
申请人： Siddhartha Mallik , Taesang Yoo , Tao Luo
发明人： Siddhartha Mallik , Taesang Yoo , Tao Luo
IPC分类号： H04W4/00 , H04W72/04 , H04B7/00
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/0632 , H04B7/066
摘要： Techniques for reporting channel information are described. In one aspect, a plurality of channel information reporting modes are available to a user equipment (UE) for reporting channel information for coordinated multi-point (CoMP) data transmission. The UE may determine a first channel information reporting mode to use, determine first channel information related to at least one cell in a CoMP measurement set of the UE, and send the first channel information in accordance with the first channel information reporting mode to one or more cells in the CoMP measurement set. The UE may also determine a second channel information reporting mode to use, determine second channel information related to multiple cells in the CoMP measurement set, and send the second channel information in accordance with the second channel information reporting mode. A plurality of channel feedback configurations may be supported, including a single-stage, a two-stage, and/or a one-shot channel configurations.
摘要翻译：描述用于报告信道信息的技术。在一个方面，多个信道信息报告模式可用于用于报告协调多点（CoMP）数据传输的信道信息的用户设备（UE）。 UE可以确定要使用的第一信道信息报告模式，确定与UE的CoMP测量集合中的至少一个小区相关的第一信道信息，并且根据第一信道信息报告模式将第一信道信息发送到一个或 CoMP测量集中更多的单元格。 UE还可以确定要使用的第二信道信息报告模式，确定与CoMP测量集中的多个小区有关的第二信道信息，并根据第二信道信息报告模式发送第二信道信息。可以支持多个信道反馈配置，包括单级，两级和/或单触发信道配置。

64. 发明授权

US08593933B2 Modified spatial diversity schemes for coverage enhancement 有权
标题翻译：用于覆盖增强的改进的空间分集方案
公开(公告)号：US08593933B2
公开(公告)日：2013-11-26
申请号：US13094669
申请日：2011-04-26
申请人： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Ke Liu
发明人： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Ke Liu
IPC分类号： H04J9/00
CPC分类号： H04J11/0053 , H04B7/0473 , H04J11/0033
摘要： In one aspect, a method to enhance coverage in a heterogeneous wireless network wireless communication is disclosed. The method includes generating a reference signal indicating a plurality of transmit antenna ports and generating modulation symbols. Modulation symbols are assigned to each of the plurality of transmit antenna ports, in accordance with a spatial diversity coding scheme for the plurality of transmit antenna ports. At least one of the modulation symbols assigned to at least one of the plurality of transmit antenna ports is muted prior to transmission in accordance with the spatial diversity coding scheme. The non-muted modulation symbols and the reference signal are transmitted on the other of the plurality of transmit antenna ports.
摘要翻译：一方面，公开了一种在异构无线网络无线通信中增强覆盖的方法。该方法包括产生指示多个发射天线端口并产生调制符号的参考信号。根据用于多个发射天线端口的空间分集编码方案，将调制符号分配给多个发射天线端口中的每一个。根据空间分集编码方案，分配给多个发送天线端口中的至少一个的调制符号中的至少一个在发送之前被静音。在多个发送天线端口中的另一个发送非静噪调制符号和参考信号。

65. 发明授权

US08582505B2 Apparatus and method for physical broadcast channel (PBCH) decoding for multiple cells 有权
标题翻译：用于多个单元的物理广播信道（PBCH）解码的装置和方法
公开(公告)号：US08582505B2
公开(公告)日：2013-11-12
申请号：US13117033
申请日：2011-05-26
申请人： Tao Luo , Ke Liu , Kapil Bhattad , Taesang Yoo , Xiaoxia Zhang
发明人： Tao Luo , Ke Liu , Kapil Bhattad , Taesang Yoo , Xiaoxia Zhang
IPC分类号： H04W4/00
CPC分类号： H04J11/0056 , H04B1/7107
摘要： A method of wireless communication includes generating a list of cells for physical broadcast channel (PBCH) decoding. The method also includes allocating memory for decoding and cancelling a subset of cells from the generated cell list. The method further includes storing information related to subsets of cells from the generated list in the allocated memory during different time periods. The allocated memory is sufficient for attempting, at each time period, decoding of each subset of cells and cancelling of decoded cells in each subset. The method further includes cycling through the generated cell list by processing each subset of the cell list during the different time periods.
摘要翻译：一种无线通信方法包括：生成用于物理广播信道（PBCH）解码的小区列表。该方法还包括分配用于从所生成的小区列表中解码和消除小区子集的存储器。该方法还包括在不同时间段期间将与生成的列表中的小区子集有关的信息存储在所分配的存储器中。分配的存储器足以在每个时间段尝试对每个子集的每个子集进行解码并且消除每个子集中的解码单元。该方法还包括通过在不同时间段内处理单元列表的每个子集来循环通过所生成的单元列表。

66. 发明申请

US20130114441A1 CHANNEL STATE INFORMATION COMPUTATION FOR ENHANCED INTER-CELL INTERFERENCE COORDINATION 审中-公开
标题翻译：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。

67. 发明申请

US20130114438A1 REFERENCE SIGNAL DETECTION 有权
标题翻译：参考信号检测
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。

68. 发明申请

US20130114437A1 METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION BY A USER EQUIPMENT USING BLIND DETECTION 审中-公开
标题翻译：用于使用盲点检测的用户设备进行干扰消除的方法和装置
公开(公告)号：US20130114437A1
公开(公告)日：2013-05-09
申请号：US13464905
申请日：2012-05-04
申请人： Taesang Yoo , Hendrik Schoeneich , Tao Luo , Yongbin Wei , Myriam Rajih , Durga Prasad Malladi
发明人： Taesang Yoo , Hendrik Schoeneich , Tao Luo , Yongbin Wei , Myriam Rajih , Durga Prasad Malladi
IPC分类号： H04B15/00 , H04W24/00 , H04W4/00
CPC分类号： H04J11/005 , H04B7/068 , H04B7/0842 , H04J11/004
摘要： In order to cancel any interference due to the second cell signal (e.g., from a non-serving cell) from a signal received at a UE, without receiving additional control information, the UE blindly estimates parameters associated with decoding the second cell signal. This may include determining a metric based on sets of symbols associated with the cell signals in order to determine parameters for the second cell signal, e.g., the transmission mode, modulation format, and/or spatial scheme of the second cell signal. The parameters for the signal may be determined based on a comparison of the metric with a threshold. When a spatial scheme and a modulation format is unknown, the blind estimation may include determining a plurality of constellations of possible transmitted modulated symbols associated with a potential spatial scheme and modulation format combination. Interference cancellation can be performed using the constellations and a corresponding probability weight.
摘要翻译：为了从UE接收到的信号中消除由于第二小区信号（例如来自非服务小区）的任何干扰而不接收附加的控制信息，UE盲目地估计与解码第二小区信号有关的参数。这可以包括基于与小区信号相关联的符号集来确定度量，以便确定第二小区信号的参数，例如第二小区信号的传输模式，调制格式和/或空间方案。可以基于度量与阈值的比较来确定信号的参数。当空间方案和调制格式未知时，盲估计可以包括确定与潜在的空间方案和调制格式组合相关联的可能传输的调制符号的多个星座。干扰消除可以使用星座和相应的概率权重进行。

69. 发明申请

US20120327795A1 INTERFERENCE ESTIMATION USING DATA TRAFFIC POWER AND REFERENCE SIGNAL POWER 有权
标题翻译：使用数据交通功率和参考信号功率的干扰估计
公开(公告)号：US20120327795A1
公开(公告)日：2012-12-27
申请号：US13455906
申请日：2012-04-25
申请人： Siddhartha Mallik , Tao Luo , Taesang Yoo , Yongbin Wei
发明人： Siddhartha Mallik , Tao Luo , Taesang Yoo , Yongbin Wei
IPC分类号： H04W24/06
CPC分类号： H04B17/005 , H04B17/345
摘要： In a wireless communication system, interference on data tones is estimated by detecting data transmissions from interferers. An overall interference covariance matrix is estimated as a function of scalar traffic to pilot ratio (TPR) estimates, residual interference covariance estimates, and covariance of channel estimates of dominant interferers. The interference estimates are refined as a function of reliability based on a ratio of power received from a serving cell and power received from a dominant interferer.
摘要翻译：在无线通信系统中，通过检测来自干扰源的数据传输来估计对数据音调的干扰。估计总干扰协方差矩阵作为标量流量对导频比（TPR）估计，残差干扰协方差估计和主要干扰源信道估计的协方差的函数。基于从服务小区接收的功率的比率和从主要干扰源接收的功率，将干扰估计作为可靠性的函数进行细化。

70. 发明申请

US20120201152A1 INTERFERENCE ESTIMATION FOR WIRELESS COMMUNICATION 有权
标题翻译：无线通信干扰估计
公开(公告)号：US20120201152A1
公开(公告)日：2012-08-09
申请号：US13196711
申请日：2011-08-02
申请人： Taesang Yoo , Tao Luo , Yongbin Wei , Siddhartha Mallik
发明人： Taesang Yoo , Tao Luo , Yongbin Wei , Siddhartha Mallik
IPC分类号： H04W24/00
CPC分类号： H04B17/345
摘要： Interference on pilot signals and on data tones can be mismatched. Different types of interference estimates perform differently based on how the mismatch occurs. The resulting interference estimate may thus be inaccurate. Interference estimates based on pilot signals and also on data tones can both be evaluated for reliability. The more reliable of the two can then be selected. If the data tones estimate is selected, the estimate can be calculated from covariance matrices or from traffic-to-pilot ratios.
摘要翻译：对导频信号和数据音调的干扰可能不匹配。基于不匹配的发生情况，不同类型的干扰估计可以不同地执行。所得到的干扰估计可能是不准确的。可以对可靠性进行评估，基于导频信号和数据音调的干扰估计。然后可以选择更可靠的两个。如果选择数据音调估计，则可以从协方差矩阵或从业务到导频比来计算估计。

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