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    • 31. 发明申请
    • METHOD AND APPARATUS FOR IMPROVING ACCURACY OF TRANSMITTING CSI VIA PUCCH
    • 用于提高发送CSI VIA PUCCH的精度的方法和装置
    • US20130195064A1
    • 2013-08-01
    • US13877625
    • 2011-10-06
    • Hongwei YangLu WuHao Liu
    • Hongwei YangLu WuHao Liu
    • H04W72/04
    • H04W72/0413H04B7/0626H04B7/0639H04B7/0652H04L1/0026H04L1/003H04L1/06
    • The present invention discloses a method and apparatus for improving the accuracy of transmitting CSI via PUCCH. The method for improving the accuracy of transmission of channel status information via the physical uplink control channel comprises reducing the number of bits of other channel information transmitted via the physical uplink control channel under the condition that the payload of the physical uplink control channel remains unchanged, and utilizing the thus-saved bits to transmit the channel state information to reduce the degree of sub-sampling the channel state information and thereby improve the accuracy of transmission of the channel status information via the physical uplink control channel. According to the present invention, system performance loss can be reduced.
    • 本发明公开了一种用于提高通过PUCCH发送CSI的精度的方法和装置。 通过物理上行链路控制信道提高信道状态信息的传输精度的方法包括:在物理上行链路控制信道的有效载荷保持不变的条件下,减少经由物理上行链路控制信道发送的其他信道信息的比特数, 利用这样保存的比特来传送信道状态信息,以降低信道状态信息的次采样度,从而提高通过物理上行控制信道发送信道状态信息的准确性。 根据本发明,可以降低系统性能损失。
    • 32. 发明申请
    • METHOD AND APPARATUS FOR SUB-SAMPLING OF A CODEBOOK IN LTE-A SYSTEM
    • 在LTE-A系统中对子代码进行子采样的方法和装置
    • US20130188745A1
    • 2013-07-25
    • US13877637
    • 2011-10-06
    • Lu WuHongwei YangHao Liu
    • Lu WuHongwei YangHao Liu
    • H04B7/04
    • H04B7/0456H04B7/0469H04B7/0478H04L25/03343H04L25/03917H04L25/03923
    • The embodiments of the present invention disclose a method and an apparatus for sub-sampling of a codebook in the LTE-A system where a precoding matrix W is a product of two matrices W1 and W2, i.e. W=W1W2, codebooks for W, W1 and W2 are denoted as C, C1 and C2 respectively, and r indicates a rank. The method includes sub-sampling the codebook C such that the sub-sampled codebook C has a size of equal to or less than 4 bits. In the sub-sampling, codewords evenly distributed in the codebook C are extracted, where some or all of the codewords are in a form of discrete Fourier transform (DFT) vector to be suitable for evenly linear arrays, and the other codewords are suitable for cross-polarized linear arrays.
    • 本发明的实施例公开了一种在LTE-A系统中对码本进行子采样的方法和装置,其中预编码矩阵W是两个矩阵W1和W2的乘积,即W = W1W2,用于W,W1的码本 W2分别表示为C,C1,C2,r表示秩。 该方法包括对码本C进行子采样,使得子采样码本C具有等于或小于4位的大小。 在子采样中,提取均匀分布在码本C中的码字,其中一些或全部码字是离散傅里叶变换(DFT)向量的形式,以适合均匀的线性阵列,其他码字适用于 交叉极化线性阵列。
    • 33. 发明授权
    • Device and method of channel information feedback for multi-cell MIMO
    • 用于多小区MIMO的信道信息反馈的装置和方法
    • US09083411B2
    • 2015-07-14
    • US13521901
    • 2010-01-13
    • Dong LiHao LiuHongwei YangYang Song
    • Dong LiHao LiuHongwei YangYang Song
    • H04B17/00H04B7/06H04B7/02
    • H04B7/0632H04B7/024H04B7/0626H04B7/0639
    • A mobile terminal is provided in the present invention, comprising: a channel state information feedback calculating unit configured to calculate a channel state information feedback between the mobile terminal and a serving cell of the mobile terminal and those between the mobile terminal and all cooperating cells; a channel quality information feedback calculating unit configured to calculate a channel quality information feedback for the serving cell of the mobile terminal; and a transmission unit configured to transmit the channel state information feedbacks and the channel quality information feedback to the serving cell. The present invention greatly improves the performance of a LTE-A system and greatly reduces feedback overhead. The present invention is a scalable feedback solution and may be flexibly applied to various coordinated multipoint transmission scenarios.
    • 本发明提供一种移动终端,包括:信道状态信息反馈计算单元,被配置为计算移动终端与移动终端的服务小区之间的信道状态信息反馈以及移动终端与所有合作小区之间的信道状态信息反馈; 信道质量信息反馈计算单元,被配置为计算移动终端的服务小区的信道质量信息反馈; 以及发送单元,被配置为将信道状态信息反馈和信道质量信息反馈发送到服务小区。 本发明大大提高了LTE-A系统的性能,大大降低了反馈开销。 本发明是可扩展的反馈解决方案,并且可以灵活地应用于各种协调的多点传输场景。
    • 34. 发明申请
    • METHOD FOR DETERMINING/FACILITATING THE DETERMINATION OF PUCCH RESOURCE AND APPARATUS THEREOF
    • 用于确定/促进PUCCH资源的确定的方法及其装置
    • US20140328297A1
    • 2014-11-06
    • US14356648
    • 2012-11-06
    • Feng SheYun DengHongwei Yang
    • Feng SheYun DengHongwei Yang
    • H04W72/04
    • H04W72/0406H04L1/1812H04L1/1854H04L5/0055H04L5/0091
    • The present invention discloses a method for determining a Physical Uplink Control Channel PUCCH resource for a user equipment and a corresponding user equipment, and a method for facilitating the determination of a PUCCH resource for a user equipment and a corresponding base station, wherein the PUCCH resource is used to transmit a Hybrid Automatic Repeat Request HARQ feed back (ACK or NACK) of the user equipment with respect to its corresponding Physical Downlink Shared Channel PDSCH. In the present invention, an index value for a Control Channel Element CCE scheduled for the user equipment in an Enhanced Physical Downlink Control Channel E-PDCCH is firstly acquired, and then based on the index value and a first parameter, the PUCCH resource used to transmit the HARQ feedback of the user equipment with respect to its corresponding PDSCH is determined, the first parameter representing a reference value that should be used when determining the PUCCH resource used to transmit the HARQ feedback of the user equipment with respect to its corresponding PDSCH, if scheduling the CCE for the user equipment in the E-PDCCH.
    • 本发明公开了一种用于确定用户设备和对应用户设备的物理上行链路控制信道PUCCH资源的方法,以及一种便于确定用于用户设备和相应基站的PUCCH资源的方法,其中PUCCH资源 用于相对于其对应的物理下行链路共享信道PDSCH发送用户设备的混合自动重传请求HARQ反馈(ACK或NACK)。 在本发明中,首先获取在增强物理下行链路控制信道E-PDCCH中为用户设备调度的控制信道要素CCE的索引值,然后基于索引值和第一参数,将PUCCH资源用于 确定相对于其对应的PDSCH发送用户设备的HARQ反馈,第一参数表示当确定用于发送用户设备的HARQ反馈的PUCCH资源相对于其对应的PDSCH时应当使用的参考值, 如果在E-PDCCH中为用户设备调度CCE。
    • 36. 发明申请
    • METHOD AND DEVICE FOR THE BASEBAND PROCESS OF THE SPACE-TIME/SPACE -FREQUENCY/SPATIAL DIVERSITY TRANSMITTER
    • 空间/空间 - 空间多样性发射机的基带过程的方法和装置
    • US20090303866A1
    • 2009-12-10
    • US12296841
    • 2007-04-09
    • Dong LiGuosong LiXialong ZhuHongwei YangLiyu Cai
    • Dong LiGuosong LiXialong ZhuHongwei YangLiyu Cai
    • H04J11/00H04L27/00
    • H04L25/03159H04L1/0606H04L1/0625H04L1/0668H04L5/0042H04L5/0044H04L5/0046H04L27/2605H04L27/261H04L27/2636
    • A method and device for the baseband process of space-time/space-frequency/spatial diversity transmitter in the SC-FDMA system, the device is characterized in that: 1) an encoding means is connected to the output end of the M-point DFT module; 2) a space-time encoding means, for encoding the corresponding symbol of at least two adjacent symbol sets, and outputting at least two data sets; each sub-carrier mapping means maps respectively each data set to the corresponding antenna, so that the mapped data satisfy the requirements: The symbols mapped on each antenna keep the same sequence as the M symbols outputted by the M-point DFT module; the mapped symbols keep the same sub-carrier interval; the M data of each mapped SC-FDMA symbol are the M outputted data of the DFT module, or the inverse of the M outputted data, or the complex conjugate of the M outputted data, or the inverse complex conjugate of the M outputted data. The present invention implements effective space diversity, reduces PAPR, and makes frequency domain equalization feasible.
    • 一种用于SC-FDMA系统中的时空/空频/空间分集发射机基带处理的方法和装置,其特征在于:1)编码装置连接到M点的输出端 DFT模块; 2)空时编码装置,用于编码至少两个相邻符号集的对应符号,并输出至少两个数据集; 每个子载波映射装置分别将每个数据集映射到相应的天线,使得映射的数据满足要求:映射在每个天线上的符号保持与M点DFT模块输出的M个符号相同的序列; 映射的符号保持相同的子载波间隔; 每个映射的SC-FDMA符号的M数据是DFT模块的M个输出数据,或M个输出数据的逆,或M个输出数据的复共轭,或M个输出数据的反复共轭。 本发明实现有效的空间分集,减少PAPR,使得频域均衡成为可能。
    • 37. 发明授权
    • Adaptive inter-carrier interference self-cancellation method and transceiver thereof
    • 自适应载波间干扰自消除方法及其收发器
    • US07443782B2
    • 2008-10-28
    • US10747187
    • 2003-12-30
    • Hongwei YangGuangjie Li
    • Hongwei YangGuangjie Li
    • H04J11/00
    • H04L1/04H04L5/0007H04L5/0046H04L5/006H04L5/0094H04L25/03821H04L27/2647
    • The present invention discloses an adaptive ICI self-cancellation method, which can adapt to the dynamical change of frequency offset and signal-noise power ratio (SNR), and a device thereof. The adaptive ICI self-cancellation method of the present invention comprises the steps of: estimating the maximum frequency offset and signal-noise power ratio (SNR) of signals, selecting a modulating state in accordance with an adaptive strategy, and determining a demodulating state based on the selected modulating state. An adaptive inter-carrier interference self-cancellation device using the method comprises: a transmitter including a digital demodulator, an inter-carrier interference self-cancellation modulator and an adaptive controller; and a receiver including a digital demodulator, an inter-carrier interference self-cancellation demodulator, a fast Fourier transformer, an estimator, a signaling demodulator and a demodulation controller. Through the present invention, the cancellation of inter-carrier interference is achieved, and at the same time the working state of the digital modulator and the ICI self-cancellation modulator satisfies the highest spectrum efficiency.
    • 本发明公开了一种可以适应频偏和信噪比功率比(SNR)的动态变化的自适应ICI自消除方法及其装置。 本发明的自适应ICI自消除方法包括以下步骤:估计信号的最大频率偏移和信噪比(SNR),根据自适应策略选择调制状态,以及基于解调状态确定 在所选择的调制状态。 使用该方法的自适应载波间干扰自消除装置包括:发射机,包括数字解调器,载波间干扰自消除调制器和自适应控制器; 以及包括数字解调器,载波间干扰自消除解调器,快速傅里叶变换器,估计器,信令解调器和解调控制器的接收机。 通过本发明,实现了载波间干扰的消除,同时数字调制器和ICI自消除调制器的工作状态同时满足最高的频谱效率。
    • 38. 发明授权
    • Method and device for detecting vertical bell laboratories layered space-time codes
    • 用于检测垂直钟实验室分层时空码的方法和装置
    • US07397874B2
    • 2008-07-08
    • US11103618
    • 2005-04-12
    • Dong LiHongwei YangLiyu Cai
    • Dong LiHongwei YangLiyu Cai
    • H04B7/10
    • H04B7/0891H04B7/04H04B7/0854
    • The present invention discloses a V-BLAST detection method for a MIMO system, including: a first detecting step for acquiring in sequence the old detection components of a transmitting symbol vector with the optimum ordering-successive interference cancellation detection method; a second detecting step for taking the detection component with the highest space diversity degree among the old detection components as a first new lo detection component, and acquiring in sequence the other new detection components of the transmitting symbol vector in an inverse order of the optimum detection order with the optimum ordering-successive interference cancellation detection method; an outputting step for outputting the first new detection component and the other new is detection components as the final detection result. The method according to the invention employs the outer close loop iteration technology to further reduce inter-layer error propagation of V-BLAST. This method has less complexity.
    • 本发明公开了一种MIMO系统的V-BLAST检测方法,包括:第一检测步骤,用于以最佳排序连续干扰消除检测方法依次获取发送符号向量的旧检测分量; 第二检测步骤,用于将旧检测部件中具有最高空间分集度的检测部件作为第一新的检测部件,并且以最佳检测的相反顺序依次获取发送符号向量的其他新检测部件 采用最优排序顺序干扰消除检测方法; 用于输出第一新检测组件的输出步骤和其他新的检测组件作为最终检测结果。 根据本发明的方法采用外闭环迭代技术来进一步减少V-BLAST的层间误差传播。 这种方法的复杂性较低。