公开(公告)号：US20100232528A1

公开(公告)日：2010-09-16

申请号：US12692202

申请日：2010-01-22

申请人： Bin LI ,  Yi LUO ,  Hui SHEN

发明人： Bin LI ,  Yi LUO ,  Hui SHEN

IPC分类号： H04L27/00 ,  H04B15/00

CPC分类号： H04B7/0639

摘要： A data transmission method, a communications system and related apparatuses are disclosed. The data transmission method includes the following steps: a transmitter obtains channel information corresponding to channels between the transmitter and several receivers; the transmitter obtains a control vector corresponding to a receiver according to the channel information; the transmitter modulates data to be transmitted by means of one-dimensional modulation to obtain modulated symbols; the transmitter processes the modulated symbols and the control vector to obtain transmitted data of each antenna; the transmitter transmits the transmitted data to the receiver; the receiver receives the transmitted data in a predetermined spatial direction of received symbol. The present invention also discloses a communications system and related apparatuses.

摘要翻译： 公开了一种数据传输方法，通信系统及相关装置。 数据传输方法包括以下步骤：发射机获取与发射机和多个接收机之间的信道相对应的信道信息; 发射机根据信道信息获得对应于接收机的控制向量; 发射机通过一维调制器调制要传输的数据，以获得调制符号; 发射机处理调制符号和控制矢量以获得每个天线的发射数据; 发射机将发送的数据发送到接收机; 接收机以接收到的符号的预定空间方向接收发送的数据。 本发明还公开了一种通信系统及相关装置。

公开(公告)号：US20120250780A1

公开(公告)日：2012-10-04

申请号：US13525641

申请日：2012-06-18

申请人： Hui SHEN ,  Bin Li ,  Yi Luo

发明人： Hui SHEN ,  Bin Li ,  Yi Luo

IPC分类号： H04L25/49 ,  H04B15/00

CPC分类号： H04B7/0413 ,  H04B7/0465 ,  H04L25/03343

摘要： The present invention relates to the field of wireless communications technologies, and discloses a method and device for pre-coding and a method and device for decoding. The present invention implements an interference alignment method with excellent performance, can effectively increase the capacity of a multi-user interference system and reduce the mutual interference among users, The method for pre-coding includes: calculating a pre-coding matrix for each transmitting end according to a sum of mean square errors of data vectors to be transmitted by each transmitting ends; and using the pre-coding matrix to pre-code the data to be transmitted by each transmitting end. The present invention has broad application prospects, for example, can be used in LTE and LTE-Advanced CoMP technology.

摘要翻译： 本发明涉及无线通信技术领域，并且公开了一种用于预编码的方法和装置以及用于解码的方法和装置。 本发明实现了具有优异性能的干扰对准方法，可以有效提高多用户干扰系统的容量，减少用户间的相互干扰。预编码方法包括：为每个发送端计算预编码矩阵 根据每个发送端发送的数据向量的均方误差之和; 并且使用预编码矩阵对由每个发送端发送的数据进行预编码。 本发明具有广泛的应用前景，例如可用于LTE和LTE-Advanced CoMP技术。

公开(公告)号：US20100330922A1

公开(公告)日：2010-12-30

申请号：US12823828

申请日：2010-06-25

申请人： Bin LI ,  Hui SHEN ,  Yi LUO ,  Feng LIU ,  Xiadong WANG

发明人： Bin LI ,  Hui SHEN ,  Yi LUO ,  Feng LIU ,  Xiadong WANG

IPC分类号： H04B17/00

CPC分类号： H04B7/0452

摘要： A user selection method and apparatus for multiuser multiple-input multiple-output (MIMO) are disclosed. The method includes: selecting two user-beam pairing modes, and obtaining target functions corresponding to the two user-beam pairing modes; comparing the target functions corresponding to the two user-beam pairing modes; and selecting a user-beam pairing mode with a larger target function. With the present invention, the optimal user-beam pairing mode can be quickly obtained when the channel information is inaccurate; and the calculation is simplified.

摘要翻译： 公开了一种用于多用户多输入多输出（MIMO）的用户选择方法和装置。 该方法包括：选择两个用户束配对模式，获得与两个用户束配对模式对应的目标功能; 比较对应于两个用户 - 束配对模式的目标功能; 并选择具有较大目标功能的用户 - 束配对模式。 利用本发明，当信道信息不准确时，可以快速获得最佳用户 - 束配对模式; 并简化了计算。

公开(公告)号：US20120236704A1

公开(公告)日：2012-09-20

申请号：US13481164

申请日：2012-05-25

申请人： Meixia TAO ,  Bin LI ,  Hui SHEN ,  Yi LUO ,  Wenbin DANG ,  Hua MU ,  Xiaowei WANG

发明人： Meixia TAO ,  Bin LI ,  Hui SHEN ,  Yi LUO ,  Wenbin DANG ,  Hua MU ,  Xiaowei WANG

IPC分类号： H04J11/00

CPC分类号： H04L5/0023 ,  H04B7/026 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/022 ,  H04W52/42 ,  H04W72/0453 ,  H04W72/0473

摘要： A resource allocation method and apparatus of a multi-relay orthogonal frequency division multiplexing system are disclosed. The resource allocation method of a multi-relay orthogonal frequency division multiplexing system includes: obtaining actual channel information; obtaining resource allocation parameters according to a mathematical optimization problem based on the actual channel information, where the resource allocation parameters include at least two of subcarrier power allocation, relay selection and subcarrier pairing, and the mathematical optimization problem is a mathematical optimization problem set for the subcarrier power allocation, relay selection and subcarrier pairing by using an end-to-end transmission rate optimization principle and based on channel information; and transmitting a signal according to the resource allocation parameters. The foregoing technical solutions optimize system performance.

摘要翻译： 公开了一种多中继正交频分复用系统的资源分配方法和装置。 多中继正交频分复用系统的资源分配方法包括：获取实际信道信息; 根据基于实际信道信息的数学优化问题获得资源分配参数，其中资源分配参数包括副载波功率分配，中继选择和子载波配对中的至少两个，并且数学优化问题是为 通过使用端对端传输速率优化原理和基于信道信息的子载波功率分配，中继选择和子载波配对; 并根据资源分配参数发送信号。 上述技术方案优化了系统性能。

公开(公告)号：US20110095829A1

公开(公告)日：2011-04-28

申请号：US12983412

申请日：2011-01-03

申请人： Jinghua YE ,  Hui SHEN ,  Danny LI

发明人： Jinghua YE ,  Hui SHEN ,  Danny LI

IPC分类号： H03F3/04

CPC分类号： H03F1/025 ,  H03F3/21 ,  H03F3/3081 ,  H03F2200/03 ,  H03F2200/507 ,  H03F2200/511 ,  H03F2200/516 ,  H03F2203/21196 ,  H03F2203/30072

摘要： A class G headphone amplifier circuit with improved power efficiency and low EMI. It may use an automatic signal level detector to detect the signal level of incoming signals and determine positive and negative power supplies for headphone amplifiers accordingly. A voltage generator may generate pairs of differential output voltages at a plurality of amplitude steps, and supply to headphone amplifiers the pair with the amplitude determined by the automatic signal level detector. As a result, headphone amplifiers are biased according to the input signal level, and the multiple voltage rails may improve power efficiency and avoid clipping.

摘要翻译： A类G耳机放大器电路，具有改善的功率效率和低EMI。 它可以使用自动信号电平检测器来检测输入信号的信号电平，并相应地确定耳机放大器的正负电源。 电压发生器可以以多个幅度步长产生成对的差分输出电压，并以由自动信号电平检测器确定的振幅向耳机放大器提供该对。 结果，耳机放大器根据输入信号电平被偏置，并且多个电压轨可以提高功率效率并避免削波。