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21. 发明申请

US20190281660A1 METHODS TO ADAPT A FREQUENCY DENSITY OF CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS) RESOURCES FOR BEAM FAILURE DETECTION (BFD) IN NEW RADIO (NR) SYSTEMS 审中-公开
公开(公告)号：US20190281660A1
公开(公告)日：2019-09-12
申请号：US16422065
申请日：2019-05-24
申请人： Jie Cui , Yang Tang , Zhibin Yu
发明人： Jie Cui , Yang Tang , Zhibin Yu
IPC分类号： H04W88/06 , H04B7/08 , H04L1/00 , H04L5/00 , H04W76/28 , H04L1/20 , H04W72/04
摘要： Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive configuration information to configure the UE with a plurality of channel state information reference signal (CSI-RS) resource sets. One of the CSI-RS resource sets may be allocated for beam failure detection (BFD). The UE may determine, based on a sub-carrier spacing (SCS) of a bandwidth part (BWP), a frequency density of the CSI-RS resources in the BWP in terms of a number of resource elements (REs) per resource block (RB). The UE may determine, based on the frequency density of the CSI-RS resources, an evaluation period for CSI-RS based BFD, wherein the evaluation period is longer for higher frequency densities and the evaluation period is shorter for lower frequency densities.

22. 发明授权

US08958388B2 System and method for measuring channel state information in a communications system 有权
标题翻译：用于测量通信系统中的信道状态信息的系统和方法
公开(公告)号：US08958388B2
公开(公告)日：2015-02-17
申请号：US13295985
申请日：2011-11-14
申请人： David Jean-Marie Mazzarese , Yang Tang
发明人： David Jean-Marie Mazzarese , Yang Tang
IPC分类号： H04W4/00 , H04L5/00 , H04W72/08 , H04W16/10
CPC分类号： H04L5/0092 , H04L5/0023 , H04L5/0048 , H04W16/10 , H04W72/082
摘要： A method for operating a communications controller includes partitioning a full band signal selected from a set of orthogonal full band signals into a plurality of subband signals according to special signal frequency resource information of a special signal being transmitted by the communications controller in a manner that reduces or avoids a collision between the full band signal and the special signal, where the plurality of subband signals carries information for estimating a channel between the communications controller and a communications device. The method also includes assigning a subband associated with each subband signal in the plurality of subband signals to a respective subband time resource according to special signal time resource information of the special signal in a manner that reduces or avoids a collision between the subband and the special signal, where the assigned subband is part of a plurality of subbands.
摘要翻译：一种用于操作通信控制器的方法包括根据通信控制器发送的特殊信号的特殊信号频率资源信息，将从一组正交全频带信号中选出的全频带信号划分为多个子带信号，以减少或避免全频带信号和特殊信号之间的冲突，其中多个子带信号携带用于估计通信控制器和通信设备之间的信道的信息。该方法还包括根据专用信号的特殊信号时间资源信息，将多个子带信号中的每个子带信号相关联的子带分配给相应的子带时间资源，以减少或避免子带与特殊信号之间的冲突信号，其中所分配的子带是多个子带的一部分。

23. 发明授权

US08600308B2 Channel state information feedback for coordinated multiple points transmission 有权
标题翻译：通道状态信息反馈用于协调多点传输
公开(公告)号：US08600308B2
公开(公告)日：2013-12-03
申请号：US12817003
申请日：2010-06-16
申请人： Yang Tang , Pengfei Xia , Zhigang Rong
发明人： Yang Tang , Pengfei Xia , Zhigang Rong
IPC分类号： H04B17/00 , H04B1/00 , H04B7/00 , H04B7/02 , H04L27/00 , H04L27/28 , H04L1/02 , H04K1/10
CPC分类号： H04L5/0023 , H04B7/022 , H04B7/024 , H04B7/0639 , H04B7/066 , H04L1/0028 , H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： In accordance with an embodiment of the present invention, a method for providing wireless communication system includes receiving a reference signal from each base station of a plurality of base stations serving a mobile station. The received reference signals are measured to compute a single cell feedback matrix and a combining matrix for each channel between the plurality of base stations and the mobile station. A channel state information is generated having information about the combining and the single cell feedback matrices. The channel state information is transmitted to the plurality of base stations.
摘要翻译：根据本发明的实施例，一种用于提供无线通信系统的方法包括从为移动台服务的多个基站中的每个基站接收参考信号。测量接收到的参考信号以计算单个小区反馈矩阵和用于多个基站和移动台之间的每个信道的组合矩阵。生成具有关于组合信息和单个单元反馈矩阵的信息的信道状态信息。信道状态信息被发送到多个基站。

24. 发明授权

US08565064B2 System and method for employing six-bit rank 1 and 2 codebooks for four transmit antennas 有权
标题翻译：用于四个发射天线采用六位1和2码本的系统和方法
公开(公告)号：US08565064B2
公开(公告)日：2013-10-22
申请号：US12636288
申请日：2009-12-11
申请人： Yang Tang , Yajun Kou , Young Hoon Kwon , Zhigang Rong
发明人： Yang Tang , Yajun Kou , Young Hoon Kwon , Zhigang Rong
IPC分类号： H04J11/00
CPC分类号： H04B7/0417 , H04B7/0478 , H04B7/0639 , H04B7/0641 , H04L25/03343 , H04L25/03923 , H04L25/03936 , H04L2025/03808
摘要： A system and method for employing six-bit rank 1 and 2 codebooks for four transmit antennas is provided. A method for communications device operation includes estimating a communications channel between the communications device and a controller serving the communications device, thereby producing a channel estimate, quantizing the channel estimate using a codebook, thereby producing a selected codeword, and transmitting an index corresponding to the selected codeword from the codebook to the controller. The codebook includes a plurality of first level codewords, with each first level codeword having a plurality of subsidiary codewords. The quantizing is a search of only the first level codewords followed by a search of a subset of the plurality of subsidiary codewords, and the codebook is based on a rank of communications between the communications device and the controller.
摘要翻译：提供了一种采用六位1和2码本用于四个发射天线的系统和方法。一种用于通信设备操作的方法包括估计通信设备和服务于通信设备的控制器之间的通信信道，由此产生信道估计，使用码本量化信道估计，从而产生所选择的码字，并且发送对应于所选代码字从码本到控制器。码本包括多个第一级码字，其中每个第一级码字具有多个辅助码字。量化是仅搜索第一级码字，随后是对多个辅助码字的子集的搜索，并且码本基于通信设备和控制器之间的通信等级。

25. 发明授权

US08477859B2 System and method for wireless communications with codebook quantization 有权
标题翻译：用于与码本量化的无线通信的系统和方法
公开(公告)号：US08477859B2
公开(公告)日：2013-07-02
申请号：US12730064
申请日：2010-03-23
申请人： Yang Tang , Pengfei Xia
发明人： Yang Tang , Pengfei Xia
IPC分类号： H04L27/28
CPC分类号： H04B7/0639 , H04B7/0617 , H04L25/0212 , H04L25/0226
摘要： A system and method for wireless communications with codebook quantization are provided. A method for communications device operations includes estimating a channel between a controller and a mobile device, generating channel state information from the channel estimate, quantizing the channel state information by selecting a codeword from a rank n codebook based on a codeword selection mechanism, where n is a non-negative integer value, transmitting an index corresponding to the selected codeword and receiving a transmission from the controller. The transmission is precoded based on the index. The rank n codebook includes 2K codewords with each codeword comprising n columns of a transformed base matrix of dimension Nt×Nt, where K is a positive integer number representing a number of bits in the rank n codebook, and Nt is a number of transmit antennas at the controller.
摘要翻译：提供了一种用于与码本量化的无线通信的系统和方法。一种用于通信设备操作的方法包括估计控制器和移动设备之间的信道，从信道估计生成信道状态信息，通过基于码字选择机制选择来自秩n码本的码字来量化信道状态信息，其中n 是非负整数值，发送与所选码字对应的索引并从控制器接收传输。传输根据索引进行预编码。秩n码本包括2K码字，其中每个码字包括尺寸为Nt×Nt的变换的基本矩阵的n列，其中K是表示秩n码本中的比特数的正整数，Nt是发射天线的数量在控制器。

26. 发明授权

US08351455B2 System and method for multi-stage zero forcing beamforming in a wireless communications system 有权
标题翻译：无线通信系统中多级零强制波束成形的系统和方法
公开(公告)号：US08351455B2
公开(公告)日：2013-01-08
申请号：US12418476
申请日：2009-04-03
申请人： Yang Tang , Young Hoon Kwon
发明人： Yang Tang , Young Hoon Kwon
IPC分类号： H04J3/16 , H04L12/26 , H04L1/00
CPC分类号： H04W16/28 , H04B7/0626 , H04L1/0026 , H04L2001/0093 , H04W48/08 , H04W48/16 , H04W88/08
摘要： A system and method for multi-stage zero forcing beamforming in a wireless communications system is provided. A method includes receiving feedback information from each mobile station (MS) in a first plurality of mobile stations (MSs), selecting a first MS from the first plurality of MSs, and broadcasting information related to the first MS to the first plurality of MSs. The first MS having a largest value of a first metric based on the feedback information received from the first plurality of MSs. The method also includes receiving feedback information from each MS in a second plurality of MSs, selecting a second MS from the second plurality of MSs, and creating a precoding matrix from feedback information from the first MS and the second MS. The second MS having a largest value of a second metric based on the feedback information received from the second plurality of MSs.
摘要翻译：提供了一种用于无线通信系统中的多级零强制波束形成的系统和方法。一种方法包括从第一多个移动站（MS）中的每个移动站（MS）接收反馈信息，从第一多个MS中选择第一MS，以及向第一多个MS广播与第一MS有关的信息。基于从第一多个MS接收的反馈信息，第一MS具有最大值的第一度量。该方法还包括从第二多个MS中的每个MS接收反馈信息，从第二多个MS中选择第二MS，以及从第一MS和第二MS的反馈信息创建预编码矩阵。基于从第二多个MS接收到的反馈信息，第二MS具有第二度量的最大值。

27. 发明授权

US08243610B2 System and method for precoding codebook adaptation with low feedback overhead 有权
标题翻译：具有低反馈开销的用于预编码码本适配的系统和方法
公开(公告)号：US08243610B2
公开(公告)日：2012-08-14
申请号：US12760038
申请日：2010-04-14
申请人： Zhigang Rong , Pengfei Xia , Yang Tang
发明人： Zhigang Rong , Pengfei Xia , Yang Tang
IPC分类号： H04L12/26
CPC分类号： H04L43/08 , H04B7/0417 , H04B7/0639 , H04L5/0023 , H04L25/0224 , H04L41/0816
摘要： A system and method for wireless communications with codebook adaptation with low feedback overhead are provided. A method for controller operations includes receiving a first channel information from a communications device, estimating channel statistics based on the first channel information, adapting a codebook using the channel statistics, and receiving a second channel information from the communications device. The method also includes constructing a precoding matrix from the second channel information and the adapted codebook, and transmitting information precoded by the precoding matrix to the communications device.
摘要翻译：提供了一种用于具有低反馈开销的码本适配的无线通信的系统和方法。一种用于控制器操作的方法包括从通信设备接收第一信道信息，基于第一信道信息估计信道统计，使用信道统计调整码本，以及从通信设备接收第二信道信息。该方法还包括从第二信道信息和适应码本构建预编码矩阵，以及将通过预编码矩阵预编码的信息发送到通信设备。

28. 发明申请

US20120121031A1 Method and Apparatus for Demodulation of a Reference Signal 有权
标题翻译：用于解调参考信号的方法和装置
公开(公告)号：US20120121031A1
公开(公告)日：2012-05-17
申请号：US13286988
申请日：2011-11-01
申请人： Yang Tang , Qiang Wu , Chi Gao , Yongxing Zhou
发明人： Yang Tang , Qiang Wu , Chi Gao , Yongxing Zhou
IPC分类号： H04B7/02
CPC分类号： H04B7/046 , H04B7/0691
摘要： A method for wireless network communication is provided. The method comprises determining, by a transmitter including a quantity of antennas, a quantity of transmitted layers; mapping a quantity of data symbols to the antennas using a quantity of precoders; generating a quantity of demodulation reference signal (DMRS) antenna ports based on the quantities of the antennas, the transmitted layers, and the precoders; and determining whether to precode at least one of the DMRS antenna ports with the precoders. The method further maps the precoded data symbols and the DMRS antenna ports to a quantity of resource elements. The method then modulates a signal comprising the resource elements and transmits the modulated signal to a receiver. Subsequently, the method estimates a channel received by the receiver over the DMRS antenna ports.
摘要翻译：提供了一种用于无线网络通信的方法。该方法包括：通过包括天线数量的发射机确定发射层的数量; 使用一定数量的预编码器将数量的数据符号映射到天线; 基于天线数量，透射层和预编码器的数量产生一定数量的解调参考信号（DMRS）天线端口; 以及使用所述预编码器确定是否对所述DMRS天线端口中的至少一个进行预编码。该方法还将预编码的数据符号和DMRS天线端口映射到一定数量的资源元素。然后，该方法调制包括资源元素的信号，并将调制信号发送到接收机。随后，该方法估计接收机通过DMRS天线端口接收的信道。

29. 发明申请

US20100322351A1 Channel State Information Feedback for Coordinated Multiple Points Transmission 有权
标题翻译：用于协调多点传输的信道状态信息反馈
公开(公告)号：US20100322351A1
公开(公告)日：2010-12-23
申请号：US12817003
申请日：2010-06-16
申请人： Yang Tang , Pengfei Xia , Zhigang Rong
发明人： Yang Tang , Pengfei Xia , Zhigang Rong
IPC分类号： H04L27/00 , H04L12/26 , H04B7/00
CPC分类号： H04L5/0023 , H04B7/022 , H04B7/024 , H04B7/0639 , H04B7/066 , H04L1/0028 , H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： In accordance with an embodiment of the present invention, a method for providing wireless communication system includes receiving a reference signal from each base station of a plurality of base stations serving a mobile station. The received reference signals are measured to compute a single cell feedback matrix and a combining matrix for each channel between the plurality of base stations and the mobile station. A channel state information is generated having information about the combining and the single cell feedback matrices. The channel state information is transmitted to the plurality of base stations.
摘要翻译：根据本发明的实施例，一种用于提供无线通信系统的方法包括从为移动台服务的多个基站中的每个基站接收参考信号。测量接收到的参考信号以计算单个小区反馈矩阵和用于多个基站和移动台之间的每个信道的组合矩阵。生成具有关于组合信息和单个单元反馈矩阵的信息的信道状态信息。信道状态信息被发送到多个基站。

30. 发明申请

US20100238913A1 Adaptive Precoding Codebooks for Wireless Communications 有权
标题翻译：用于无线通信的自适应预编码码书
公开(公告)号：US20100238913A1
公开(公告)日：2010-09-23
申请号：US12621288
申请日：2009-11-18
申请人： Pengfei Xia , Yang Tang , Zhigang Rong
发明人： Pengfei Xia , Yang Tang , Zhigang Rong
IPC分类号： H04B7/216 , H04L1/02
CPC分类号： H04L25/03343 , H04B7/0482 , H04B7/0626 , H04L1/0001 , H04L2025/03426 , H04L2025/03605 , H04L2025/03808
摘要： Adaptive precoding codebooks are described. In one embodiment, the method of wireless communication includes reading at least a rank-2 baseline codebook having codewords representing precoding matrices. An adaptive codebook is generated by multiplying a first column of the codeword with a first transform matrix calculated from a channel correlation matrix, and multiplying a second column of the codeword with a second transform matrix calculated from the channel correlation matrix. The first and the second transform matrices are orthogonal.
摘要翻译：描述了自适应预编码码本。在一个实施例中，无线通信的方法包括读取至少具有表示预编码矩阵的码字的2级基线码本。通过将码字的第一列与从信道相关矩阵计算的第一变换矩阵相乘，并将码字的第二列与从信道相关矩阵计算的第二变换矩阵相乘来生成自适应码本。第一和第二变换矩阵是正交的。

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