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21. 发明授权

US09468009B2 Signal processing method and related device 有权
标题翻译：信号处理方法及相关设备
公开(公告)号：US09468009B2
公开(公告)日：2016-10-11
申请号：US14601734
申请日：2015-01-21
申请人： Huawei Technologies Co., Ltd.
发明人： Rui Wang , Sheng Liu , Yinggang Du
IPC分类号： H04W72/08 , H04L5/04 , H04L27/34 , H04B7/04
CPC分类号： H04W72/082 , H04B7/046 , H04L5/04 , H04L27/3488 , Y02D70/122 , Y02D70/444
摘要： A signal processing method and related equipment are provided, which are used for reducing the number of antennas needed by a proximal user equipment to detect a low power signal. The method comprises: adjusting a pre-coding vector of a high power data stream to allow a product of the pre-coding vector and an effective receiving channel for a low power data stream equal to a constant; performing superposition coding on the low power data stream and the adjusted high power data stream; and sending the superposition-coded data stream to user equipments, wherein the user equipments comprise a user equipment at a center of a cell and a user equipment at an edge of the cell, the high power data stream is an interference while the low power data stream is desirable for the user equipment at the center of the cell.
摘要翻译：提供了一种信号处理方法和相关设备，用于减少近端用户设备所需的天线数量以检测低功率信号。该方法包括：调整高功率数据流的预编码矢量，以允许等于常数的低功率数据流的预编码矢量和有效接收信道的乘积; 对低功率数据流和调整后的高功率数据流进行叠加编码; 并且将叠加编码数据流发送给用户设备，其中用户设备包括小区中心的用户设备和小区边缘的用户设备，高功率数据流是干扰，而低功率数据流对于小区中心的用户设备是期望的。

22. 发明授权

US09455775B2 Handover signaling for beamforming communications 有权
公开(公告)号：US09455775B2
公开(公告)日：2016-09-27
申请号：US14538355
申请日：2014-11-11
申请人： Comcast Cable Communications, LLC
发明人： Esmael Hejazi Dinan
IPC分类号： H04W4/00 , H04W36/00 , H04B7/04 , H04W72/04 , H04W24/02 , H04W36/30 , H04W36/24 , H04L25/03 , H04L27/26 , H04B7/06 , H04W72/08 , H04J11/00 , H04L5/00 , H04W36/08 , H04W74/00 , H04W88/08
CPC分类号： H04B7/046 , H04B7/0417 , H04B7/043 , H04B7/0456 , H04B7/0473 , H04B7/0478 , H04B7/0617 , H04B7/0626 , H04B7/063 , H04B7/0634 , H04B7/0639 , H04J11/0056 , H04L5/0023 , H04L5/0053 , H04L5/0073 , H04L25/03955 , H04L27/2646 , H04W24/02 , H04W28/0236 , H04W36/0005 , H04W36/0055 , H04W36/0072 , H04W36/0094 , H04W36/08 , H04W36/24 , H04W36/30 , H04W72/0406 , H04W72/042 , H04W72/0426 , H04W72/044 , H04W72/0453 , H04W72/046 , H04W72/082 , H04W74/002 , H04W88/08
摘要： A first base station receives a first message comprising one or more parameters indicating whether a wireless device supports configuration of a number of channel state information (CSI) processes. The first base station transmits at least one second message comprising configuration parameters of CSI reference signals. The first base station transmits, to a second base station after making a handover decision, at least one third message comprising at least one of the one or more parameters and the configuration parameters of the CSI reference signals.

23. 发明授权

US09444536B2 Precoding with a codebook for a wireless system 有权
标题翻译：用无线系统的码本进行预编码
公开(公告)号：US09444536B2
公开(公告)日：2016-09-13
申请号：US14819734
申请日：2015-08-06
申请人： NEC Corporation
发明人： Mohammad Khojastepour
IPC分类号： H04B7/04 , H04B7/06 , H04W52/42
CPC分类号： H04B7/0617 , H04B7/04 , H04B7/0408 , H04B7/0413 , H04B7/0456 , H04B7/046 , H04B7/0486 , H04W52/42 , H04W88/02 , H04W88/08
摘要： A base station used in a wireless communications system with multiple transmission ranks is disclosed. The base station comprises a memory to store a codebook for a transmission rank, a beamforming controller to precode data with a precoding matrix selected from the codebook, and a transmitter to transmit the precoded data to a user equipment, wherein the precoding matrix is selected according to a first description and a second description, which are unique to the precoding matrix, and wherein the second description provides a finer description of the codebook than the first description. Other methods, systems, and apparatuses also are disclosed.
摘要翻译：公开了一种在具有多个传输级别的无线通信系统中使用的基站。基站包括存储器，用于存储用于传输等级的码本，波束成形控制器，用从码本中选择的预编码矩阵预编码数据;以及发射机，用于将预编码数据发送到用户设备，其中，预编码矩阵根据涉及预编码矩阵唯一的第一描述和第二描述，并且其中第二描述提供了与第一描述相比对码本的更精细的描述。还公开了其它方法，系统和装置。

24. 发明授权

US09425875B2 Codebook for full-dimension multiple input multiple output communications 有权
标题翻译：全尺寸多输入多输出通信代码本
公开(公告)号：US09425875B2
公开(公告)日：2016-08-23
申请号：US14668655
申请日：2015-03-25
申请人： Intel IP Corporation
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Jong-Kae Fwu
IPC分类号： H04B7/04 , H04L5/00 , H04B7/06
CPC分类号： H04B7/046 , H04B7/0417 , H04B7/0452 , H04B7/0469 , H04B7/0478 , H04B7/0486 , H04B7/063 , H04B7/0639 , H04B7/0647 , H04B7/065 , H04L5/0014 , H04L5/0026 , H04W84/042
摘要： Various embodiments include an apparatus to be employed by an enhanced Node B (eNB), the apparatus comprising communication circuitry to receive, from a user equipment (UE), feedback information and control circuitry, coupled with the communication circuitry, to identify a codeword from a three-dimensional codebook based on the feedback information received from the UE, wherein the communication circuitry is further to precode data to be transmitted to the UE based on the codeword. An apparatus to be employed by a UE and additional methods are described.
摘要翻译：各种实施例包括由增强型节点B（eNB）采用的装置，该装置包括通信电路，用于从用户设备（UE）接收与通信电路耦合的反馈信息和控制电路，以识别来自基于从UE接收到的反馈信息的三维码本，其中所述通信电路还用于基于所述码字来对要发送到所述UE的数据进行预编码。描述了由UE使用的装置和附加方法。

25. 发明授权

US09425871B2 4TX codebook enhancement in LTE 有权
公开(公告)号：US09425871B2
公开(公告)日：2016-08-23
申请号：US15055195
申请日：2016-02-26
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Eko Onggosanusi , Runhua Chen , Ralf Bendlin
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/046 , H04B7/0469 , H04B7/0478 , H04B7/0486 , H04B7/0626 , H04B7/0639
摘要： Channel state information (CSI) feedback in a wireless communication system is disclosed. A precoding matrix is generated for multi-antenna transmission based on precoding matrix indicator (PMI) feedback, wherein the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first codebook and a second codebook. In one embodiment, the first codebook comprises at least a first precoding matrix constructed with a first group of adjacent Discrete-Fourier-Transform (DFT) vectors. In another embodiment, the first codebook comprises at least a second precoding matrix constructed with a second group of uniformly distributed non-adjacent DFT vectors. In yet another embodiment, the first codebook comprises at least a first precoding matrix and a second precoding matrix, where said first precoding matrix is constructed with a first group of adjacent DFT vectors, and said second precoding matrix is constructed with a second group of uniformly distributed non-adjacent DFT vectors.

26. 发明授权

US09419696B2 Beam information exchange between base stations 有权
公开(公告)号：US09419696B2
公开(公告)日：2016-08-16
申请号：US14797136
申请日：2015-07-12
申请人： Comcast Cable Communications, LLC
发明人： Esmael Hejazi Dinan
IPC分类号： H04B7/04 , H04W72/04 , H04W24/02 , H04W36/00 , H04W36/30 , H04W36/24 , H04L25/03 , H04L27/26 , H04B7/06 , H04W72/08 , H04J11/00 , H04L5/00 , H04W36/08 , H04W74/00 , H04W88/08
CPC分类号： H04B7/046 , H04B7/0417 , H04B7/043 , H04B7/0456 , H04B7/0473 , H04B7/0478 , H04B7/0617 , H04B7/0626 , H04B7/063 , H04B7/0634 , H04B7/0639 , H04J11/0056 , H04L5/0023 , H04L5/0053 , H04L5/0073 , H04L25/03955 , H04L27/2646 , H04W24/02 , H04W28/0236 , H04W36/0005 , H04W36/0055 , H04W36/0072 , H04W36/0094 , H04W36/08 , H04W36/24 , H04W36/30 , H04W72/0406 , H04W72/042 , H04W72/0426 , H04W72/044 , H04W72/0453 , H04W72/046 , H04W72/082 , H04W74/002 , H04W88/08
摘要： A base station receives a message comprising at least one index identifying a subset of a second plurality of beamforming codewords. Each of the second plurality of beamforming codewords is identifiable by an index presented by a number of bits. The number of bits is greater than or equal to log2(N), N being number of the second plurality of beamforming codewords, and less than number of bits in representation of a corresponding beamforming codeword. The base station transmits signals employing a first plurality of beamforming codewords being selected employing the subset of the second plurality of beamforming codewords.

27. 发明申请

US20160212738A1 Positioning of Wireless Devices 有权
标题翻译：无线设备定位
公开(公告)号：US20160212738A1
公开(公告)日：2016-07-21
申请号：US14913544
申请日：2013-08-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Magnus THURFJELL , Kjell LARSSON , Peter ÖKVIST
IPC分类号： H04W72/04 , H04L5/00 , H04B7/04
CPC分类号： H04W72/048 , G01S1/44 , G01S3/38 , G01S5/12 , H04B7/0408 , H04B7/0456 , H04B7/046 , H04B7/0617 , H04B7/0639 , H04L5/0051 , H04L25/03 , H04L25/03949 , H04W64/00
摘要： A method performed by a network node (10) for finding a direction to a wireless device (20) in a wireless communication network is provided. The method comprises the step (S1) of the network node transmitting reference signal pairs on at least one pair of correlated antennas. Each reference signal pair has a unique phase difference between the signals in the signal pair, and the unique phase differences of the reference signal pairs are distributed over a given angular interval. The method further comprises the step (S2) of the network node receiving from the wireless device, in response to each pair of reference signals, a respective indication of a preferred pre-coding matrix, and the step (S3) of the network node determining a direction to the wireless device based on the received indications, information representative of the phase differences of the reference signal pairs, and phase information related to the indicated preferred pre-coding matrices.
摘要翻译：提供了一种由网络节点（10）执行的用于在无线通信网络中找到无线设备（20）的方向的方法。该方法包括网络节点在至少一对相关天线上发送参考信号对的步骤（S1）。每个参考信号对在信号对中的信号之间具有唯一的相位差，并且参考信号对的唯一相位差在给定的角度间隔上分布。该方法还包括网络节点从无线设备接收的响应于每对参考信号的优选预编码矩阵的相应指示的步骤（S2），以及网络节点确定的步骤（S3）基于接收到的指示到无线设备的方向，表示参考信号对的相位差的信息以及与所指示的优选预编码矩阵相关的相位信息。

28. 发明申请

US20160173307A1 TRANSMISSION METHOD, TRANSMITTER APPARATUS, RECEPTION METHOD AND RECEIVER APPARATUS 有权
公开(公告)号：US20160173307A1
公开(公告)日：2016-06-16
申请号：US15044432
申请日：2016-02-16
申请人： Panasonic Intellectual Property Corporation of America
发明人： Yutaka MURAKAMI , Tomohiro KIMURA , Mikihiro OUCHI
IPC分类号： H04L27/26 , H04B7/04 , H04L1/00 , H04L5/00
CPC分类号： H04L27/265 , H04B7/0434 , H04B7/0452 , H04B7/0456 , H04B7/046 , H04B7/0473 , H04B7/0617 , H04B7/0697 , H04B7/08 , H04B7/086 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0047 , H04L1/005 , H04L1/0057 , H04L1/0061 , H04L1/0071 , H04L1/06 , H04L1/0643 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/0026 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04L25/0226 , H04L25/0248 , H04L25/03942 , H04L25/067 , H04L27/0008 , H04L27/2602 , H04L27/2626 , H04L27/3405 , H04L2001/0093
摘要： Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.

29. 发明申请

US20160164582A1 Low Complexity Soft Output MIMO Decoder 审中-公开
公开(公告)号：US20160164582A1
公开(公告)日：2016-06-09
申请号：US15019651
申请日：2016-02-09
申请人： Imagination Technologies Limited
发明人： Sriram Kankipati , Somya Sharma , Vellenki Umapathireddy
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/046 , H04B7/0882 , H04L25/0204 , H04L25/0246 , H04L25/03318
摘要： A method and processing block for receiving data transmitted in a MIMO system is provided. Data is transmitted as a transmit vector of values from multiple transmitting antennas and received as a receive vector of values at multiple receiving antennas. Candidate vectors are determined based on each of a plurality of constellation points of the constellation configuration used in the transmission scheme. A channel matrix is decomposed into a unitary matrix and a triangular matrix, such that a relationship links: (i) a function of the unitary matrix and the receive vector, and (ii) a multiplication of the triangular matrix and the transmit vector. A best candidate vector from the set of candidate vectors is utilized for the computation of soft bits representing the values of the transmit vector.

30. 发明申请

US20160149619A1 METHOD AND APPARATUS FOR MAPPING VIRTUAL ANTENNA TO PHYSICAL ANTENNA 有权
标题翻译：用于将虚拟天线映射到物理天线的方法和装置
公开(公告)号：US20160149619A1
公开(公告)日：2016-05-26
申请号：US14937960
申请日：2015-11-11
申请人： Electronics and Telecommunications Research Institute
发明人： Seok Ho WON , Seyoung CHO , Suchang CHAE , Il Gyu KIM , Seung Chan BANG
IPC分类号： H04B7/04 , H04L5/00
CPC分类号： H04B7/046 , H04B7/0417 , H04B7/0669
摘要： A transmitter generates a first precoding vector for a first virtual antenna port among a plurality of virtual antenna ports using a first sequence having a constant magnitude and a discrete Fourier transform (DFT) vector sequence in a time domain and a frequency domain. The transmitter generates a plurality of second precoding vectors for the remaining virtual antenna port, except for the first virtual antenna port of the plurality of virtual antenna ports by circular shifting the first precoding vector. The transmitter maps a plurality of first data streams for the plurality of virtual antenna ports to a plurality of physical antenna ports using the first precoding vector and the plurality of second precoding vectors.
摘要翻译：发射机使用具有恒定幅度的第一序列和在时域和频域中的离散傅里叶变换（DFT）矢量序列来生成多个虚拟天线端口中的第一虚拟天线端口的第一预编码矢量。发射机通过循环移位第一预编码矢量，除了多个虚拟天线端口中的第一虚拟天线端口之外，为剩余的虚拟天线端口生成多个第二预编码向量。发射机使用第一预编码向量和多个第二预编码向量将多个虚拟天线端口的多个第一数据流映射到多个物理天线端口。

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