公开(公告)号：US08792426B2

公开(公告)日：2014-07-29

申请号：US12402349

申请日：2009-03-11

申请人： Juan Montojo ,  Tao Luo ,  Xiaoxia Zhang

发明人： Juan Montojo ,  Tao Luo ,  Xiaoxia Zhang

IPC分类号： H04J11/00 ,  H04W4/00

CPC分类号： H04L1/0606 ,  H04L1/1607 ,  H04L5/0053 ,  H04W72/04

摘要： Systems and methodologies are described that facilitate improved resource management in a wireless communication system. As described herein, supergroups can be formed from groups of Physical Hybrid Automatic Repeat Request Channels (PHICHs) such that respective PHICH supergroups are multiplexed onto respective non-overlapping resource element subsets, thereby improving resource usage efficiency for the extended cyclic prefix case and limited numbers of transmit antennas. In one example described herein, even-indexed PHICH groups are mapped to a selected subset of resource elements in a group while odd-indexed PHICH groups are mapped to the remaining resource elements in the group. This mapping can be performed by modifying orthogonal sequences associated with the PHICH groups and/or by performing resource mapping in different manners for respective PHICH supergroups. Upon receiving a transmission of mapped PHICH information, a receiving entity can leverage knowledge of the mapping to decode transmitted PHICH information using the proper resource subset(s).

摘要翻译： 描述了有助于在无线通信系统中改进资源管理的系统和方法。 如本文所述，超组可以由物理混合自动重传请求信道（PHICH）组成，使得相应的PHICH超组被复用到相应的非重叠资源元素子集上，从而提高扩展循环前缀情况和有限数量的资源使用效率 的发射天线。 在本文描述的一个示例中，偶数索引的PHICH组被映射到组中的所选资源元素的子集，而奇数索引的PHICH组被映射到组中的剩余资源元素。 该映射可以通过修改与PHICH组相关联的正交序列和/或通过以不同的方式对相应的PHICH超组进行资源映射来执行。 在接收到映射的PHICH信息的传输之后，接收实体可以利用映射的知识来利用适当的资源子集来解码发送的PHICH信息。

公开(公告)号：US08644268B2

公开(公告)日：2014-02-04

申请号：US13166296

申请日：2011-06-22

申请人： Xiaoxia Zhang ,  Tao Luo

发明人： Xiaoxia Zhang ,  Tao Luo

IPC分类号： H04J3/00

CPC分类号： H04W72/1205 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1887 ,  H04L5/0053

摘要： Downlink (DL) subframes and DL hybrid automatic repeat request (HARQ) messages may be protected by time division multiplexing (TDM) partitioning. However, TDM partitioning may not be required for uplink (UL) subframes in general. For example, information carried over a physical uplink control channel (PUCCH), may be protected by frequency division multiplexing (FDM) partitioning. In fact, one UL subframe may correspond to eNBs of multiple power classes. Since TDM partitioning may be required for DL transmissions, one DL sub frame may not correspond to the eNBs of multiple power classes. For some embodiments, groups of subframes may be allocated to the different power classes. Therefore, subframes allocated to an eNB of a power class may observe reduced or no interference from eNBs of other power classes.

摘要翻译： 下行链路（DL）子帧和DL混合自动重传请求（HARQ）消息可以通过时分复用（TDM）分区来保护。 然而，一般来说，上行链路（UL）子帧可能不需要TDM划分。 例如，通过物理上行链路控制信道（PUCCH）承载的信息可以通过频分复用（FDM）分割来保护。 事实上，一个UL子帧可以对应于多个功率等级的eNB。 由于DL传输可能需要TDM划分，所以一个DL子帧可能不对应于多个功率级的eNB。 对于一些实施例，可将子帧组分配给不同的功率等级。 因此，分配给功率等级的eNB的子帧可以观察到来自其他功率等级的eNB的减少或没有干扰。

公开(公告)号：US08638684B2

公开(公告)日：2014-01-28

申请号：US13072617

申请日：2011-03-25

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

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

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04L1/0026 ,  H04L1/0027

摘要： A method, computer program product, and apparatus are provided in which a request for a channel state information (CSI) report is received on a component carrier of a plurality of component carriers. The request indicates a set of component carriers of the plurality of component carriers for which to provide the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is transmitted. A method, computer program product, and apparatus are provided in which a request for a CSI report on a component carrier of a plurality of component carriers is transmitted. The request indicates a set of component carriers of the plurality of component carriers for which to receive the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is received.

摘要翻译： 提供了一种在多个分量载波的分量载波上接收对信道状态信息（CSI）报告的请求的方法，计算机程序产品和装置。 该请求指示为其提供CSI报告的多个分量载波的一组分量载波。 此外，发送包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。 提供一种方法，计算机程序产品和装置，其中发送对多个分量载波的分量载波上的CSI报告的请求。 该请求指示用于接收CSI报告的多个分量载波的一组分量载波。 此外，接收包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。

公开(公告)号：US08538450B2

公开(公告)日：2013-09-17

申请号：US12834604

申请日：2010-07-12

申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Tao Luo

发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Tao Luo

IPC分类号： H04W72/00

CPC分类号： H04W52/40 ,  H04W52/146

摘要： Systems and methodologies are described that facilitate responding to overload indicators in a wireless communication environment. A non-serving base station can send an over-the-air (OTA) overload indicator (OI) and a backhaul OI. A UE can receive the OTA OI from the non-serving base station, generate a report based upon the OTA OI, and send the report to a serving base station. The serving base station can receive the report from the UE, and generate a power control command for the UE based at least in part upon the report. Moreover, the serving base station can generate the power control command for the UE further based upon the backhaul OI received from the non-serving base station. For example, the UE can be configured to ignore the OTA OI. By way of another example, the serving base station can cause the non-serving base station to inhibit sending the backhaul OI.

摘要翻译： 描述了在无线通信环境中有助于响应过载指示符的系统和方法。 非服务基站可以发送空中（OTA）过载指示符（OI）和回程OI。 UE可以从非服务基站接收OTA OI，基于OTA OI生成报告，并将报告发送到服务基站。 服务基站可以从UE接收报告，并且至少部分地基于报告生成针对UE的功率控制命令。 此外，服务基站还可以基于从非服务基站接收的回程OI来生成用于UE的功率控制命令。 例如，UE可以配置为忽略OTA OI。 作为另一示例，服务基站可以使非服务基站禁止发送回程OI。

公开(公告)号：US08503364B2

公开(公告)日：2013-08-06

申请号：US12834185

申请日：2010-07-12

申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Tao Luo

发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Tao Luo

IPC分类号： H04W4/00 ,  H04B15/00 ,  H04B7/00 ,  H04W84/04 ,  H04B1/10 ,  H04W52/24

CPC分类号： H04W84/04 ,  H04B1/1027 ,  H04W52/146 ,  H04W52/24 ,  H04W52/243 ,  H04W52/247 ,  H04W52/343

摘要： Devices and methods are provided for implementing an over-the-air (OTA) broadcast of an overload indication to reduce interference levels at neighboring node(s). In one embodiment, the method involves receiving the OTA broadcast of the overload indication from a neighboring node. The method further involves performing transmit power control based upon the received overload indication to reduce Interference over Thermal (IoT) noise at the neighboring node (e.g., by adjusting the transmit power spectral density). Such a method may be performed, for example, by an access terminal or a small base node.

摘要翻译： 提供了用于实现过载指示的空中（OTA）广播以减少相邻节点处的干扰电平的装置和方法。 在一个实施例中，该方法包括从相邻节点接收过载指示的OTA广播。 该方法还涉及基于所接收的过载指示执行发射功率控制，以减少相邻节点处的干扰（IoT）噪声（例如，通过调整发射功率谱密度）。 这样的方法可以例如由接入终端或小型基站节点执行。

公开(公告)号：US08503316B2

公开(公告)日：2013-08-06

申请号：US12722752

申请日：2010-03-12

申请人： Wanshi Chen ,  Tao Luo ,  Xiaoxia Zhang ,  Juan Montojo

发明人： Wanshi Chen ,  Tao Luo ,  Xiaoxia Zhang ,  Juan Montojo

IPC分类号： H04W28/16

CPC分类号： H04L1/1896 ,  H04L1/0025 ,  H04L1/0046 ,  H04L1/1822 ,  H04L5/0053 ,  H04L5/0055 ,  H04W72/1289

摘要： Techniques for handling inconsistent control information in a wireless communication system are described. In an aspect, inconsistent control information is handled in different manners for the downlink and uplink. In one design, a user equipment (UE) receives a first grant with first control information for a first data transmission and also receives a second grant with second control information for a second data transmission. The UE determines that the second control information is inconsistent with the first control information, e.g., due to the two grants conveying different transport block sizes. The UE determines whether to retain or discard the second grant based on whether the two grants are for data transmissions on the downlink or uplink. In one design, the UE retains the second grant if the two grants are for data transmissions on the downlink and discards the second grant if the two grants are for data transmissions on the uplink.

摘要翻译： 描述了在无线通信系统中处理不一致的控制信息的技术。 在一方面，针对下行链路和上行链路以不同的方式处理不一致的控制信息。 在一种设计中，用户设备（UE）接收具有用于第一数据传输的第一控制信息的第一许可，并且还接收具有用于第二数据传输的第二控制信息的第二许可。 UE确定第二控制信息与第一控制信息不一致，例如由于传送不同传输块大小的两个授权。 UE基于两个授权是针对下行链路还是上行链路上的数据传输来确定是否保留或丢弃第二许可。 在一种设计中，如果两个授权用于下行链路上的数据传输，则UE保留第二许可，并且如果两个授权用于上行链路上的数据传输，则丢弃第二许可。

公开(公告)号：US20120093076A1

公开(公告)日：2012-04-19

申请号：US13083830

申请日：2011-04-11

申请人： Xiaoxia Zhang ,  Tao Luo

发明人： Xiaoxia Zhang ,  Tao Luo

IPC分类号： H04W72/12

CPC分类号： H04W56/00 ,  H04J11/005 ,  H04J11/0069

摘要： When performing interference cancellation on selected information (e.g., synchronization signals, certain broadcast signals, etc.) through cross correlation, symbol periods of signals being combined will generally match up. Slight mismatches will generally produce negligible impact on interference cancellation. However, where the mismatch is severe due to significant timing offsets, serious performance degradation may occur, particularly when timing offsets are sufficiently large as to overlap data portions of a transmission. By selectively puncturing resource elements prior to the selected information and/or after the selected information, the selected information may be protected and allow for interference cancellation even in cases of large timing offsets.

摘要翻译： 当通过互相关对所选择的信息（例如，同步信号，某些广播信号等）执行干扰消除时，组合的信号的符号周期通常将匹配。 轻微的错配通常会对干扰消除产生微不足道的影响。 然而，由于重要的定时偏移，不匹配严重的情况下，可能会出现严重的性能下降，特别是当定时偏移足够大以至于重叠传输的数据部分时。 通过在所选择的信息之前和/或在所选择的信息之后选择性地删截资源元素，所选择的信息可以被保护，并且即使在大的定时偏移的情况下也允许干扰消除。

公开(公告)号：US20120076017A1

公开(公告)日：2012-03-29

申请号：US13072617

申请日：2011-03-25

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

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

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04L1/0026 ,  H04L1/0027

摘要： A method, computer program product, and apparatus are provided in which a request for a channel state information (CSI) report is received on a component carrier of a plurality of component carriers. The request indicates a set of component carriers of the plurality of component carriers for which to provide the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is transmitted. A method, computer program product, and apparatus are provided in which a request for a CSI report on a component carrier of a plurality of component carriers is transmitted. The request indicates a set of component carriers of the plurality of component carriers for which to receive the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is received.

摘要翻译： 提供了一种在多个分量载波的分量载波上接收对信道状态信息（CSI）报告的请求的方法，计算机程序产品和装置。 该请求指示为其提供CSI报告的多个分量载波的一组分量载波。 此外，发送包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。 提供一种方法，计算机程序产品和装置，其中发送对多个分量载波的分量载波上的CSI报告的请求。 该请求指示用于接收CSI报告的多个分量载波的一组分量载波。 此外，接收包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。

公开(公告)号：US20110317670A1

公开(公告)日：2011-12-29

申请号：US13166296

申请日：2011-06-22

申请人： Xiaoxia Zhang ,  Tao Luo

发明人： Xiaoxia Zhang ,  Tao Luo

IPC分类号： H04W80/00 ,  H04J1/00 ,  H04J3/00

CPC分类号： H04W72/1205 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1887 ,  H04L5/0053

摘要： Downlink (DL) subframes and DL hybrid automatic repeat request (HARQ) messages may be protected by time division multiplexing (TDM) partitioning. However, TDM partitioning may not be required for uplink (UL) subframes in general. For example, information carried over a physical uplink control channel (PUCCH), may be protected by frequency division multiplexing (FDM) partitioning. In fact, one UL subframe may correspond to eNBs of multiple power classes. Since TDM partitioning may be required for DL transmissions, one DL sub frame may not correspond to the eNBs of multiple power classes. For some embodiments, groups of subframes may be allocated to the different power classes. Therefore, subframes allocated to an eNB of a power class may observe reduced or no interference from eNBs of other power classes.

摘要翻译： 下行链路（DL）子帧和DL混合自动重传请求（HARQ）消息可以通过时分复用（TDM）分区来保护。 然而，一般来说，上行链路（UL）子帧可能不需要TDM划分。 例如，通过物理上行链路控制信道（PUCCH）承载的信息可以通过频分复用（FDM）分割来保护。 事实上，一个UL子帧可以对应于多个功率等级的eNB。 由于DL传输可能需要TDM划分，所以一个DL子帧可能不对应于多个功率级的eNB。 对于一些实施例，可将子帧组分配给不同的功率等级。 因此，分配给功率等级的eNB的子帧可以观察到来自其他功率等级的eNB的减少或没有干扰。

公开(公告)号：US20110195684A1

公开(公告)日：2011-08-11

申请号：US12857195

申请日：2010-08-16

申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Aleksandar Damnjanovic

发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Aleksandar Damnjanovic

IPC分类号： H04B17/00

CPC分类号： H04L25/0202 ,  H04B1/7107 ,  H04J11/004 ,  H04J11/0069 ,  H04J11/0093 ,  H04L5/0023 ,  H04L25/0224

摘要： A method, an apparatus, and a computer program product for receiving a signal including components from a plurality of cells, estimating a channel from the received signal using one or more channel estimation schemes, removing a component signal using the estimated channel from the received signal to generate a processed signal and detecting a residual signal in the processed signal.

摘要翻译： 一种用于从多个小区接收包括分量的信号的方法，装置和计算机程序产品，使用一个或多个信道估计方案从接收到的信号估计信道，使用来自接收信号的估计信道去除分量信号 以产生经处理的信号并检测处理信号中的残留信号。