-
公开(公告)号：US08908788B2
公开(公告)日：2014-12-09
申请号：US13520743
申请日：2010-12-31
CPC分类号： H04B7/0691 , H04B7/0413 , H04B7/0689 , H04B7/10
摘要： A method for selecting antenna elements at a base station can include selecting multiple transmit antenna elements from several antenna elements according to a work mode of the base station. The work mode can be an open-loop or a closed-loop working mode. In open-loop mode the base station does not receive feedback information regarding channel quality from a mobile station. In closed-loop mode feedback information is received. For example, for control signaling, or when the speed of a mobile station is very high, the base station may determine that the working mode is open-loop. When the information being transmitted is data for a specific mobile station and the mobile station is moving at a speed under a threshold, the base station may select or determine the working mode to be the closed-loop working mode. Antenna elements are selected, for example, according to a spatial correlation appropriate to the work mode.
摘要翻译： 用于在基站处选择天线元件的方法可以包括根据基站的工作模式从多个天线元件中选择多个发射天线元件。 工作模式可以是开环或闭环工作模式。 在开环模式中，基站不从移动台接收关于信道质量的反馈信息。 在闭环模式下，接收到反馈信息。 例如，对于控制信令，或者当移动站的速度非常高时，基站可以确定工作模式是开环的。 当正在发送的信息是特定移动站的数据，并且移动台以低于阈值的速度移动时，基站可以选择或确定作为闭环工作模式的工作模式。 天线元件例如根据适合于工作模式的空间相关来选择。
-
公开(公告)号：US09379800B2
公开(公告)日：2016-06-28
申请号：US13380338
申请日：2009-06-23
CPC分类号： H04B7/0626 , H04B7/024 , H04L5/0035
摘要： Embodiments of the present invention provide a method and apparatus for channel state information feedback. The method comprises: estimating channel state information from the mobile terminal to a serving cell and neighboring cells according to channel state information reference signals (CSI-Reference Signal) received from a plurality of coordinating cells; calculating a precoding matrix based on the estimated channel state information of the serving cell; calculating precoded channel state information respectively for the serving cell of the mobile terminal and neighboring cells in the coordinating cells according to the obtained precoding matrix; and feeding the precoded channel state information back to the serving cell of the mobile terminal. The above technical scheme can implement flexible and efficient channel status information feedback with low overhead, and enable multi-cell coordinated transmission to perform flexible and efficient precoding processing based on the feedback.
摘要翻译： 本发明的实施例提供了一种用于信道状态信息反馈的方法和装置。 该方法包括：根据从多个协调小区接收的信道状态信息参考信号（CSI-参考信号），估计从移动终端到服务小区和相邻小区的信道状态信息; 基于所述服务小区的估计信道状态信息来计算预编码矩阵; 根据获得的预编码矩阵，分别为协调小区中的移动终端的服务小区和相邻小区分别计算预编码信道状态信息; 以及将预编码的信道状态信息反馈给移动终端的服务小区。 上述技术方案可以以低开销实现灵活高效的信道状态信息反馈，实现多小区协调传输，根据反馈进行灵活高效的预编码处理。
-
3.发明申请公开(公告)号：US20110142164A1
公开(公告)日：2011-06-16
申请号：US13059701
申请日：2008-08-18
IPC分类号： H04L27/00
CPC分类号： H04B7/024 , H04B7/0495
摘要： A method and device for performing Multi-Input Multi-Output transmission to a mobile terminal in the base station devices of a wireless communication system is provided. Each base station device determines the sector coordination group used at a certain frequency band according to system settings. Each base station device only performs multiple-sector (-cell) collaborative MIMO transmission in the sector coordination group which includes the sectors governed by the base station device. A simple and effective method is provided for realizing the multiple-sector (-cell) MIMO technology, its advantages including but not limited to there being a reduced amount of information exchanged between sectors (cells), which facilitates implementation and management, and good performance in controlling interface between sectors (cells).
摘要翻译： 提供了一种用于在无线通信系统的基站设备中向移动终端执行多输入多输出传输的方法和设备。 每个基站设备根据系统设置确定在某个频带使用的扇区协调组。 每个基站设备仅在包括由基站设备管理的扇区的扇区协调组中执行多扇区（ - 小区）协作MIMO传输。 提供了一种实现多扇区（-cell）MIMO技术的简单有效的方法，其优点包括但不限于在扇区（小区）之间交换的信息量减少，这有助于实现和管理，并且具有良好的性能 在控制扇区（单元）之间的接口。
-
4.发明申请METHOD AND APPARATUS FOR CONSTRUCTING CODEBOOK, AND METHOD, APPARATUS AND SYSTEM FOR PRECODING 有权用于构建代码的方法和装置，以及用于预编码的方法，装置和系统公开(公告)号：US20140241452A1
公开(公告)日：2014-08-28
申请号：US14267976
申请日：2014-05-02
申请人： Hongwei Yang , Dong Li , Keying Wu
发明人： Hongwei Yang , Dong Li , Keying Wu
IPC分类号： H04B7/04
CPC分类号： H04B7/0473 , H04B7/0413 , H04L25/03898 , H04L25/03961
摘要： The present invention discloses a method and apparatus for constructing a codebook. The method comprises: receiving grouping information on a plurality of transmit antennas of a base station; obtaining a channel model for a channel between a mobile terminal and the base station; and determining an optimal precoding matrix corresponding to each antenna group according to the grouping information and the channel model, so as to construct a codebook used for precoding. The present invention further discloses a method and apparatus for selecting a precoding matrix, as well as a method, apparatus and system for precoding.
摘要翻译： 本发明公开了一种构造码本的方法和装置。 该方法包括：在基站的多个发射天线上接收分组信息; 获取移动终端与基站之间的信道的信道模型; 以及根据分组信息和信道模型确定与每个天线组对应的最佳预编码矩阵，以便构造用于预编码的码本。 本发明还公开了一种用于选择预编码矩阵的方法和装置，以及用于预编码的方法，装置和系统。
-
5.发明授权Method and apparatus for constructing codebook, and method, apparatus and system for precoding 有权用于构造码本的方法和装置，以及用于预编码的方法，装置和系统公开(公告)号：US08737525B2
公开(公告)日：2014-05-27
申请号：US13390796
申请日：2009-08-18
申请人： Hongwei Yang , Dong Li , Keying Wu
发明人： Hongwei Yang , Dong Li , Keying Wu
IPC分类号： H04B15/00
CPC分类号： H04B7/0473 , H04B7/0413 , H04L25/03898 , H04L25/03961
摘要： The present invention discloses a method and apparatus for constructing a codebook. The method comprises: receiving grouping information on a plurality of transmit antennas of a base station: obtaining a channel model for a channel between a mobile terminal and the base station; and determining an optimal precoding matrix corresponding to each antenna group according to the grouping information and the channel model, so as to construct a codebook used for precoding. The present invention further discloses a method and apparatus for selecting a precoding matrix, as well as a method, apparatus and system for precoding.
摘要翻译： 本发明公开了一种构造码本的方法和装置。 该方法包括：在基站的多个发射天线上接收分组信息：获取移动终端与基站之间的信道的信道模型; 以及根据分组信息和信道模型确定与每个天线组对应的最佳预编码矩阵，以便构造用于预编码的码本。 本发明还公开了一种用于选择预编码矩阵的方法和装置，以及用于预编码的方法，装置和系统。
-
6.发明授权公开(公告)号：US08718035B2
公开(公告)日：2014-05-06
申请号：US13059701
申请日：2008-08-18
IPC分类号： H04J1/00
CPC分类号： H04B7/024 , H04B7/0495
摘要： A method and device for performing Multi-Input Multi-Output transmission to a mobile terminal in the base station devices of a wireless communication system is provided. Each base station device determines the sector coordination group used at a certain frequency band according to system settings. Each base station device only performs multiple-sector (-cell) collaborative MIMO transmission in the sector coordination group which includes the sectors governed by the base station device. A simple and effective method is provided for realizing the multiple-sector (-cell) MIMO technology, its advantages including but not limited to there being a reduced amount of information exchanged between sectors (cells), which facilitates implementation and management, and good performance in controlling interface between sectors (cells).
摘要翻译： 提供了一种用于在无线通信系统的基站设备中向移动终端执行多输入多输出传输的方法和设备。 每个基站设备根据系统设置确定在某个频带使用的扇区协调组。 每个基站设备仅在包括由基站设备管理的扇区的扇区协调组中执行多扇区（ - 小区）协作MIMO传输。 提供了一种实现多扇区（-cell）MIMO技术的简单有效的方法，其优点包括但不限于在扇区（小区）之间交换的信息量减少，这有助于实现和管理，并且具有良好的性能 在控制扇区（单元）之间的接口。
-
公开(公告)号：US20120099470A1
公开(公告)日：2012-04-26
申请号：US13380338
申请日：2009-06-23
IPC分类号： H04W24/00
CPC分类号： H04B7/0626 , H04B7/024 , H04L5/0035
摘要： Embodiments of the present invention provide a method and apparatus for channel state information feedback. The method comprises: estimating channel state information from the mobile terminal to a serving cell and neighboring cells according to channel state information reference signals (CSI-Reference Signal) received from a plurality of coordinating cells; calculating a precoding matrix based on the estimated channel state information of the serving cell; calculating precoded channel state information respectively for the serving cell of the mobile terminal and neighboring cells in the coordinating cells according to the obtained precoding matrix; and feeding the precoded channel state information back to the serving cell of the mobile terminal. The above technical scheme can implement flexible and efficient channel status information feedback with low overhead, and enable multi-cell coordinated transmission to perform flexible and efficient precoding processing based on the feedback.
摘要翻译： 本发明的实施例提供了一种用于信道状态信息反馈的方法和装置。 该方法包括：根据从多个协调小区接收的信道状态信息参考信号（CSI-参考信号），估计从移动终端到服务小区和相邻小区的信道状态信息; 基于所述服务小区的估计信道状态信息来计算预编码矩阵; 根据获得的预编码矩阵，分别为协调小区中的移动终端的服务小区和相邻小区分别计算预编码信道状态信息; 以及将预编码的信道状态信息反馈给移动终端的服务小区。 上述技术方案可以以低开销实现灵活高效的信道状态信息反馈，实现多小区协调传输，根据反馈进行灵活高效的预编码处理。
-
8.发明申请公开(公告)号：US20110063989A1
公开(公告)日：2011-03-17
申请号：US12674092
申请日：2008-08-13
申请人： Hongwei Yang , Liyu Cai , Keying Wu , Dong Li
发明人： Hongwei Yang , Liyu Cai , Keying Wu , Dong Li
CPC分类号： H04B7/022 , H04B7/0413
摘要： A Macro-Diversity HandOver (MDHO) solution based on multi-User MIMO is provided. Multiple base stations (BSs) serve the MDHO zone. By jointly precoding the modulated signals to be sent, the multiple BSs send the precoded signals to the multiple mobile stations (MSs) over the same time-frequency resources. The signal to be sent is transmitted to the multiple MSs in the MDHO zone. Due to the adoption of the precoding technique, each MS makes no or small interference to other MSs. Since the multiple BSs that serve one MDHO zone serve multiple MSs over the same time-frequency resources, the system capacity in the MDHO zone is greatly improved.
摘要翻译： 提供了一种基于多用户MIMO的宏分集切换（MDHO）解决方案。 多个基站（BS）服务于MDHO区域。 通过联合预编码要发送的调制信号，多个BS通过相同的时间 - 频率资源向多个移动站（MS）发送预编码的信号。 要发送的信号被发送到MDHO区域中的多个MS。 由于采用了预编码技术，每个MS对其他MS没有任何或小的干扰。 由于服务于一个MDHO区域的多个BS在相同的时间 - 频率资源上服务于多个MS，所以MDHO区域中的系统容量大大提高。
-
公开(公告)号：US20120275531A1
公开(公告)日：2012-11-01
申请号：US13520743
申请日：2010-12-31
IPC分类号： H04B7/06
CPC分类号： H04B7/0691 , H04B7/0413 , H04B7/0689 , H04B7/10
摘要： In order to solve the technical problem in the prior art that different spatial correlation modes are applicable for the transmission antennas in the base station under different working modes is not considered, the present invention provides a method and device for selecting the antenna at the base station. Wherein, the spatial correlation mode information among the multiple transmission antenna elements is determined by the base station according to the working mode; then, multiple transmission antenna elements are selected from several antenna elements to transmit the signal, according to the spatial correlation mode information. With the solution in the present invention, the base station may flexibly choose channel characteristic of strong spatial correlation and/or high DoF. When the base station is working under a closed-loop mode, transmission antennas may be selected to satisfy the strong spatial correlation, thereby the feedback over-head is reduced, and the robustness against the feedback delay is increased, and the quantization error is reduced. When the base station is working under an open-loop mode, transmission antennas may be selected to satisfy the weak spatial correlation, thereby the spatial DoF is increased, and the diversity and/or multi-plexing gain is introduced.
摘要翻译： 为了解决现有技术中的技术问题，不考虑在不同工作模式下不同的空间相关模式适用于基站中的发射天线，本发明提供了一种在基站上选择天线的方法和装置 。 其中，所述多个发送天线元件之间的空间相关模式信息由所述基站根据所述工作模式确定; 然后，根据空间相关模式信息从多个天线元件中选择多个发射天线元件以发射信号。 通过本发明的解决方案，基站可以灵活地选择具有强空间相关性和/或高DoF的信道特征。 当基站在闭环模式下工作时，可以选择发送天线以满足强空间相关性，从而降低反馈超头，并且反馈延迟的鲁棒性增加，量化误差减小 。 当基站在开环模式下工作时，可以选择发送天线以满足弱空间相关性，从而增加空间DoF，并且引入分集和/或多路复用增益。
-
10.发明授权Method and device for canceling the interference among signals received by multiple mobile stations 有权消除由多个移动台接收的信号之间的干扰的方法和装置公开(公告)号：US08238307B2
公开(公告)日：2012-08-07
申请号：US12674092
申请日：2008-08-13
申请人： Hongwei Yang , Liyu Cai , Keying Wu , Dong Li
发明人： Hongwei Yang , Liyu Cai , Keying Wu , Dong Li
CPC分类号： H04B7/022 , H04B7/0413
摘要： A Macro-Diversity HandOver (MDHO) solution based on multi-User MIMO is provided. Multiple base stations (BSs) serve the MDHO zone. By jointly precoding the modulated signals to be sent, the multiple BSs send the precoded signals to the multiple mobile stations (MSs) over the same time-frequency resources. The signal to be sent is transmitted to the multiple MSs in the MDHO zone. Due to the adoption of the precoding technique, each MS makes no or small interference to other MSs. Since the multiple BSs that serve one MDHO zone serve multiple MSs over the same time-frequency resources, the system capacity in the MDHO zone is greatly improved.
摘要翻译： 提供了一种基于多用户MIMO的宏分集切换（MDHO）解决方案。 多个基站（BS）服务于MDHO区域。 通过联合预编码要发送的调制信号，多个BS通过相同的时间 - 频率资源向多个移动站（MS）发送预编码的信号。 要发送的信号被发送到MDHO区域中的多个MS。 由于采用了预编码技术，每个MS对其他MS没有任何或小的干扰。 由于服务于一个MDHO区域的多个BS在相同的时间 - 频率资源上服务于多个MS，所以MDHO区域中的系统容量大大提高。
-
-
-
-
-
-
-
-
-
搜索结果
67 条记录 (耗时 0.015 秒)
