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1.发明申请公开(公告)号：US20120213109A1
公开(公告)日：2012-08-23
申请号：US13401660
申请日：2012-02-21
申请人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
发明人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
CPC分类号： H04W52/40 , H04B7/024 , H04L5/0048 , H04W52/242 , H04W52/244 , H04W52/50
摘要： Certain aspects of the present disclosure relate to techniques that may be used to discover transmission points in heterogeneous networks (HetNet) that involves coordinated multi-point (CoMP) transmission and reception.
摘要翻译： 本公开的某些方面涉及可用于发现涉及协调多点（CoMP）传输和接收的异构网络（HetNet）中的传输点的技术。
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2.发明授权公开(公告)号：US09635624B2
公开(公告)日：2017-04-25
申请号：US13401660
申请日：2012-02-21
申请人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
发明人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
CPC分类号： H04W52/40 , H04B7/024 , H04L5/0048 , H04W52/242 , H04W52/244 , H04W52/50
摘要： Certain aspects of the present disclosure relate to techniques that may be used to discover transmission points in heterogeneous networks (HetNet) that involves coordinated multi-point (CoMP) transmission and reception. Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The method generally includes receiving a configuration indicating distinct resources used by each of a plurality of different transmission points involved in coordinated multipoint (CoMP) operations with the UE for transmitting discovery reference signals (RSs), receiving distinct discovery RSs transmitted from the plurality of different transmission points, and calculating at least one of path loss or reference signal received power (RSRP) estimations for each of the transmission points based on the distinct discovery RSs.
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公开(公告)号：US20120051453A1
公开(公告)日：2012-03-01
申请号：US13214024
申请日：2011-08-19
申请人： Xiliang Luo , Peter Gaal , Hao Xu , Tao Luo , Kapil Bhattad , Juan Montojo , Wanshi Chen
发明人： Xiliang Luo , Peter Gaal , Hao Xu , Tao Luo , Kapil Bhattad , Juan Montojo , Wanshi Chen
CPC分类号： H04L5/0023 , H04B7/0413 , H04B7/0456 , H04B7/0486 , H04L1/0031 , H04L1/1896 , H04L5/0053 , H04L5/0091 , H04L25/03343 , H04L25/03891 , H04W72/042
摘要： A precoding scheme to accommodate user equipment (UEs) having higher Doppler speeds. In such transmission schemes, a different precoding matrix is applied to each orthogonal frequency division multiplex (OFDM) symbol in the transmission stream. Additionally, a downlink control message format is defined to handle assignment of multiple different transmission schemes using the same message format. The downlink control message format includes a control element in one of the message fields along with a set of parameters specifically applicable to the assigned transmission scheme. Based on the value of this control element, the UE sets the specific transmission scheme and determines a set of interpretation rules uniquely associated with that transmission scheme. Using the interpretation rules, the UE is able to read the set of parameters as applied to the selected transmission scheme.
摘要翻译： 一种用于适应具有更高多普勒速度的用户设备（UE）的预编码方案。 在这种传输方案中，将不同的预编码矩阵应用于传输流中的每个正交频分复用（OFDM）符号。 另外，下行链路控制消息格式被定义为使用相同的消息格式来处理多个不同传输方案的分配。 下行链路控制消息格式包括在消息字段之一中的控制元素以及特定适用于所分配的传输方案的一组参数。 基于该控制元件的值，UE设置特定的传输方案并且确定与该传输方案唯一相关联的一组解释规则。 使用解释规则，UE能够读取应用于所选传输方案的一组参数。
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公开(公告)号：US09106389B2
公开(公告)日：2015-08-11
申请号：US13332701
申请日：2011-12-21
申请人： Xiliang Luo , Peter Gaal , Wanshi Chen , Hao Xu , Tao Luo , Kapil Bhattad , Xiaoxia Zhang
发明人： Xiliang Luo , Peter Gaal , Wanshi Chen , Hao Xu , Tao Luo , Kapil Bhattad , Xiaoxia Zhang
CPC分类号： H04L5/0062 , H04L1/1692
摘要： A method for transmitting an acknowledgement/negative acknowledgement is described. Cell-specific symbol-level cyclic shift hopping is applied to data single-carrier frequency division multiplexing symbols of the acknowledgement/negative acknowledgement. A discrete Fourier transform is applied to the data single-carrier frequency division multiplexing symbols. Cell-specific symbol-level phase hopping is applied to the data single-carrier frequency division multiplexing symbols. The data single-carrier frequency division multiplexing symbols are transmitted in a slot.
摘要翻译： 描述用于发送确认/否定确认的方法。 小区特定符号级循环移位跳频被应用于确认/否定确认的数据单载波频分复用符号。 离散傅里叶变换被应用于数据单载波频分复用符号。 小区特定符号级相位跳变被应用于数据单载波频分复用符号。 数据单载波频分复用符号在时隙中发送。
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公开(公告)号：US20120163159A1
公开(公告)日：2012-06-28
申请号：US13332701
申请日：2011-12-21
申请人： Xiliang Luo , Peter Gaal , Wanshi Chen , Hao Xu , Tao Luo , Kapil Bhattad , Xiaoxia Zhang
发明人： Xiliang Luo , Peter Gaal , Wanshi Chen , Hao Xu , Tao Luo , Kapil Bhattad , Xiaoxia Zhang
IPC分类号： H04J1/02
CPC分类号： H04L5/0062 , H04L1/1692
摘要： A method for transmitting an acknowledgement/negative acknowledgement is described. Cell-specific symbol-level cyclic shift hopping is applied to data single-carrier frequency division multiplexing symbols of the acknowledgement/negative acknowledgement. A discrete Fourier transform is applied to the data single-carrier frequency division multiplexing symbols. Cell-specific symbol-level phase hopping is applied to the data single-carrier frequency division multiplexing symbols. The data single-carrier frequency division multiplexing symbols are transmitted in a slot.
摘要翻译： 描述用于发送确认/否定确认的方法。 小区特定符号级循环移位跳频被应用于确认/否定确认的数据单载波频分复用符号。 离散傅里叶变换被应用于数据单载波频分复用符号。 小区特定符号级相位跳变被应用于数据单载波频分复用符号。 数据单载波频分复用符号在时隙中发送。
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公开(公告)号：US09014287B2
公开(公告)日：2015-04-21
申请号：US13214024
申请日：2011-08-19
申请人： Xiliang Luo , Peter Gaal , Hao Xu , Tao Luo , Kapil Bhattad , Juan Montojo , Wanshi Chen
发明人： Xiliang Luo , Peter Gaal , Hao Xu , Tao Luo , Kapil Bhattad , Juan Montojo , Wanshi Chen
CPC分类号： H04L5/0023 , H04B7/0413 , H04B7/0456 , H04B7/0486 , H04L1/0031 , H04L1/1896 , H04L5/0053 , H04L5/0091 , H04L25/03343 , H04L25/03891 , H04W72/042
摘要： A precoding scheme to accommodate user equipment (UEs) having higher Doppler speeds. In such transmission schemes, a different precoding matrix is applied to each orthogonal frequency division multiplex (OFDM) symbol in the transmission stream. Additionally, a downlink control message format is defined to handle assignment of multiple different transmission schemes using the same message format. The downlink control message format includes a control element in one of the message fields along with a set of parameters specifically applicable to the assigned transmission scheme. Based on the value of this control element, the UE sets the specific transmission scheme and determines a set of interpretation rules uniquely associated with that transmission scheme. Using the interpretation rules, the UE is able to read the set of parameters as applied to the selected transmission scheme.
摘要翻译： 一种用于适应具有更高多普勒速度的用户设备（UE）的预编码方案。 在这种传输方案中，将不同的预编码矩阵应用于传输流中的每个正交频分复用（OFDM）符号。 另外，下行链路控制消息格式被定义为使用相同的消息格式来处理多个不同传输方案的分配。 下行链路控制消息格式包括在消息字段之一中的控制元素以及特定适用于所分配的传输方案的一组参数。 基于该控制元件的值，UE设置特定的传输方案并且确定与该传输方案唯一相关联的一组解释规则。 使用解释规则，UE能够读取应用于所选传输方案的一组参数。
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公开(公告)号：US09673945B2
公开(公告)日：2017-06-06
申请号：US13360348
申请日：2012-01-27
申请人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
发明人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
IPC分类号： H04W4/00 , H04L1/00 , H04L5/00 , H04L1/06 , H04W24/10 , H04B7/06 , H04L12/26 , H04L12/28 , H04J3/00 , H04W72/00 , H04B7/024
CPC分类号： H04L5/0051 , H04B7/024 , H04B7/0626 , H04L1/0026 , H04L1/0687 , H04L1/0693 , H04L5/0023 , H04L5/0048 , H04W24/10 , H04W72/042 , H04W84/042
摘要： Certain aspects of the present disclosure provide techniques for implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources. In an aspect, the UE may be instructed to report on specific CSI-RS resource(s) via explicit signaling in the UE grant. Other aspects disclose techniques for implicit CSI-RS resource selection by the UE that require fewer signaling resources. Instead of explicitly signaling CSI-RS resources to the UE, the UE may implicitly select CSI-RS resource for CSI feedback reporting based on information known to the UE, e.g. a subframe on which a reporting request is received. This may reduce the impact of the additional signaling in the UE grant.
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8.发明申请IMPLICITLY LINKING APERIODIC CHANNEL STATE INFORMATION (A-CSI) REPORTS TO CSI-REFERENCE SIGNAL (CSI-RS) RESOURCES 有权将联络通道状态信息（A-CSI）与CC-RS信号（CSI-RS）资源密切联系公开(公告)号：US20130028182A1
公开(公告)日：2013-01-31
申请号：US13360348
申请日：2012-01-27
申请人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
发明人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
IPC分类号： H04W4/00
CPC分类号： H04L5/0051 , H04B7/024 , H04B7/0626 , H04L1/0026 , H04L1/0687 , H04L1/0693 , H04L5/0023 , H04L5/0048 , H04W24/10 , H04W72/042 , H04W84/042
摘要： Certain aspects of the present disclosure provide techniques for implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources. In an aspect, the UE may be instructed to report on specific CSI-RS resource(s) via explicit signaling in the UE grant. Other aspects disclose techniques for implicit CSI-RS resource selection by the UE that require fewer signaling resources. Instead of explicitly signaling CSI-RS resources to the UE, the UE may implicitly select CSI-RS resource for CSI feedback reporting based on information known to the UE, e.g. a subframe on which a reporting request is received. This may reduce the impact of the additional signaling in the UE grant.
摘要翻译： 本公开的某些方面提供了将非周期性信道状态信息（A-CSI）报告隐含地链接到CSI参考信号（CSI-RS）资源的技术。 在一方面，可以指示UE通过UE授权中的显式信令来报告特定的CSI-RS资源。 其他方面公开了由UE需要较少信令资源的隐性CSI-RS资源选择技术。 代替将CSI-RS资源明确地发送给UE，UE可以基于UE已知的信息，例如隐含地选择用于CSI反馈报告的CSI-RS资源。 接收报告请求的子帧。 这可以减少UE授权中附加信令的影响。
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9.发明授权Feedback reporting based on channel state information reference signal (CSI-RS) groups 有权基于信道状态信息参考信号（CSI-RS）组的反馈报告公开(公告)号：US09559820B2
公开(公告)日：2017-01-31
申请号：US13359154
申请日：2012-01-26
申请人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
发明人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
CPC分类号： H04L5/0048
摘要： In macro/RRH setups, channel state information reference signals (CSI-RS) and demodulation reference signals (DM-RS) may be used to decouple control and data transmission. Data transmission (e.g. for LTE Rel 10 and beyond) may be based on CSI-RS and DM-RS, while control may be received from a different set of cells or TxPs via CRS. Certain aspects of the present disclosure introduce a reporting framework, in which configuration of data-serving cells/TxPs may be carried out based on CSI-RS. In certain aspects, a new concept of CSI-RS groups, i.e., a set of CSI-RS ports that a UE considers as one group for precoding matrix indicator (PMI)/channel quality indicator (CQI)/rank indicator (RI) reporting, may be defined.
摘要翻译： 在宏/ RRH设置中，可以使用信道状态信息参考信号（CSI-RS）和解调参考信号（DM-RS）来去耦合控制和数据传输。 数据传输（例如，对于LTE Rel 10及其以外）可以基于CSI-RS和DM-RS，而可以经由CRS从不同的小区集合或TxP接收控制。 本公开的某些方面引入了报告框架，其中可以基于CSI-RS来执行数据服务小区/ TxP的配置。 在某些方面，CSI-RS组的新概念，即UE认为一组用于预编码矩阵指示符（PMI）/信道质量指示符（CQI）/秩指示符（RI）报告）的一组CSI-RS端口 ，可以被定义。
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10.发明申请FEEDBACK REPORTING BASED ON CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS) GROUPS 有权基于信道状态信息参考信号（CSI-RS）组的反馈报告公开(公告)号：US20130021926A1
公开(公告)日：2013-01-24
申请号：US13359154
申请日：2012-01-26
申请人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
发明人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
CPC分类号： H04L5/0048
摘要： In macro/RRH setups, channel state information reference signals (CSI-RS) and demodulation reference signals (DM-RS) may be used to decouple control and data transmission. Data transmission (e.g. for LTE Rel 10 and beyond) may be based on CSI-RS and DM-RS, while control may be received from a different set of cells or TxPs via CRS. Certain aspects of the present disclosure introduce a reporting framework, in which configuration of data-serving cells/TxPs may be carried out based on CSI-RS. In certain aspects, a new concept of CSI-RS groups, i.e., a set of CSI-RS ports that a UE considers as one group for precoding matrix indicator (PMI)/channel quality indicator (CQI)/rank indicator (RI) reporting, may be defined.
摘要翻译： 在宏/ RRH设置中，可以使用信道状态信息参考信号（CSI-RS）和解调参考信号（DM-RS）来去耦合控制和数据传输。 数据传输（例如，对于LTE Rel 10及其以外）可以基于CSI-RS和DM-RS，而可以经由CRS从不同的小区或TxP接收控制。 本公开的某些方面引入了报告框架，其中可以基于CSI-RS来执行数据服务小区/ TxP的配置。 在某些方面，CSI-RS组的新概念，即UE认为一组用于预编码矩阵指示符（PMI）/信道质量指示符（CQI）/秩指示符（RI）报告）的一组CSI-RS端口 ，可以被定义。
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