专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08811974B2 Coordinated multipoint wireless communication 有权
标题翻译：协调多点无线通信
公开(公告)号：US08811974B2
公开(公告)日：2014-08-19
申请号：US12346358
申请日：2008-12-30
申请人： Abdulfauf Hafeez , Jiann-Ching Guey , Sven Oscar Petersson , Kambiz Zangi
发明人： Abdulfauf Hafeez , Jiann-Ching Guey , Sven Oscar Petersson , Kambiz Zangi
IPC分类号： H04W4/00
CPC分类号： H04W16/02 , H04W16/28
摘要： Multipoint wireless communications are coordinated in cells with radiation that is emanated from antennas in an inward direction. In an example embodiment, an apparatus includes a first antenna, a second antenna, a third antenna and a controller. The first antenna emanates radiation from a first location in an inwardly direction for a cell. The second antenna emanates radiation from a second location in an inwardly direction for the cell. The third antenna emanates radiation from a third location in an inwardly direction for the cell. The controller coordinates the emanation of the radiation via the first, second, and third antennas so as to reduce intra-cell interference for remote terminals located within the cell. The coordination may be effected in accordance with one or more coordinated multi-point (transmission/reception) (CoMP) techniques. Different numbers of sub-cells and antennas per cell and different CoMP cell organizations may be implemented.
摘要翻译：多点无线通信在具有向内方向上从天线发出的辐射的小区中协调。在示例实施例中，一种装置包括第一天线，第二天线，第三天线和控制器。第一天线从单元的向内方向的第一位置发出辐射。第二天线从小区的向内方向的第二位置发射辐射。第三天线从单元的内向的第三位置发出辐射。控制器通过第一，第二和第三天线来协调辐射的发射，以便减少位于小区内的远程终端的小区内干扰。协调可以根据一个或多个协调的多点（发送/接收）（CoMP）技术来实现。可以实现每个细胞和不同CoMP细胞组织的不同数量的子细胞和天线。

2. 发明申请

US20100167717A1 COORDINATED MULTIPOINT WIRELESS COMMUNICATION 有权
标题翻译：协调多点无线通信
公开(公告)号：US20100167717A1
公开(公告)日：2010-07-01
申请号：US12346358
申请日：2008-12-30
申请人： Abdulfauf Hafeez , Jiann-Ching Guey , Sven Oscar Petersson , Kambiz Zangi
发明人： Abdulfauf Hafeez , Jiann-Ching Guey , Sven Oscar Petersson , Kambiz Zangi
IPC分类号： H04B15/00 , H04W4/00
CPC分类号： H04W16/02 , H04W16/28
摘要： Multipoint wireless communications are coordinated in cells with radiation that is emanated from antennas in an inward direction. In an example embodiment, an apparatus includes a first antenna, a second antenna, a third antenna and a controller. The first antenna emanates radiation from a first location in an inwardly direction for a cell. The second antenna emanates radiation from a second location in an inwardly direction for the cell. The third antenna emanates radiation from a third location in an inwardly direction for the cell. The controller coordinates the emanation of the radiation via the first, second, and third antennas so as to reduce intra-cell interference for remote terminals located within the cell. The coordination may be effected in accordance with one or more coordinated multi-point (transmission/reception) (CoMP) techniques. Different numbers of sub-cells and antennas per cell and different CoMP cell organizations may be implemented.
摘要翻译：多点无线通信在具有向内方向上从天线发出的辐射的小区中协调。在示例实施例中，一种装置包括第一天线，第二天线，第三天线和控制器。第一天线从单元的向内方向的第一位置发出辐射。第二天线从小区的向内方向的第二位置发射辐射。第三天线从单元的内向的第三位置发出辐射。控制器通过第一，第二和第三天线来协调辐射的发射，以便减少位于小区内的远程终端的小区内干扰。协调可以根据一个或多个协调的多点（发送/接收）（CoMP）技术来实现。可以实现每个细胞和不同CoMP细胞组织的不同数量的子细胞和天线。

3. 发明申请

US20100261493A1 INTER-CELL INTERFERENCE MITIGATION 审中-公开
标题翻译：细胞间干扰减缓
公开(公告)号：US20100261493A1
公开(公告)日：2010-10-14
申请号：US12563589
申请日：2009-09-21
申请人： Jiann-Ching Guey , Kambiz Zangi , Christian Hoymann
发明人： Jiann-Ching Guey , Kambiz Zangi , Christian Hoymann
IPC分类号： H04B15/00
CPC分类号： H04B7/024 , H04W16/02 , H04W72/1226 , H04W72/1278
摘要： A method and Coordinated Multi-Point (CoMP) cell controller for reducing interference in a wireless communication network in which a first CoMP cell neighbors a second CoMP cell. The CoMP cell controller in the first CoMP cell gathers scheduling information from border sub-cells in the neighboring second CoMP cell in which transmissions to and from UEs cause inter-CoMP cell interference in at least one sub-cell in the first CoMP cell. The CoMP cell controller augments intra-CoMP cell scheduling information in the first CoMP cell with the scheduling information from the border sub-cells to create augmented scheduling information. The CoMP cell controller then utilizes the augmented scheduling information to schedule transmissions to and from UEs within the at least one sub-cell in the first CoMP cell to reduce the inter-CoMP cell interference.
摘要翻译：一种方法和协调多点（CoMP）小区控制器，用于减少无线通信网络中的干扰，其中第一个CoMP小区邻近第二个CoMP小区。第一CoMP单元中的CoMP单元控制器从相邻的第二CoMP单元中的边界子单元收集调度信息，其中来自和来自UE的传输在第一CoMP单元中的至少一个子单元中引起CoMP间干扰。 CoMP单元控制器利用来自边界子单元的调度信息来增加第一CoMP单元中的CoMP单元调度信息，以创建增强的调度信息。 CoMP单元控制器然后利用增强的调度信息调度到和/或从第一CoMP单元中的至少一个子单元内的UE的传输以减少CoMP间干扰。

4. 发明申请

US20100260103A1 Distributed Antenna System 有权
标题翻译：分布式天线系统
公开(公告)号：US20100260103A1
公开(公告)日：2010-10-14
申请号：US12740385
申请日：2007-10-30
申请人： Jiann-Ching Guey , Kambiz Zangi
发明人： Jiann-Ching Guey , Kambiz Zangi
IPC分类号： H04W28/00
CPC分类号： H04W36/18 , H04W16/04 , H04W16/32 , H04W36/04
摘要： A wireless communication network employs a distributed antenna system to provide radio coverage. The wireless communication network comprises a plurality of access points providing service in respective coverage areas. The access point within each coverage area connects to a plurality of antennas that are widely distributed within the coverage area. Radio resources at antennas within the overlapping region of two or more neighboring coverage areas are shared by the access points in the neighboring coverage areas according to a multiple access scheme. The sharing of radio resources within the overlapping region of two or more coverage areas allows the overlapping region to be enlarged, thereby providing more time to complete a handover.
摘要翻译：无线通信网络采用分布式天线系统来提供无线覆盖。无线通信网络包括在相应覆盖区域中提供服务的多个接入点。每个覆盖区域内的接入点连接到广泛分布在覆盖区域内的多个天线。根据多址方案，在两个或多个相邻覆盖区域的重叠区域内的天线处的无线电资源由相邻覆盖区域中的接入点共享。在两个或多个覆盖区域的重叠区域内的无线电资源的共享允许重叠区域被扩大，从而提供更多的时间来完成切换。

5. 发明授权

US08737298B2 Method of downlink signal transport over backhaul communications through distributed processing 有权
标题翻译：通过分布式处理的回程通信的下行链路信号传输方法
公开(公告)号：US08737298B2
公开(公告)日：2014-05-27
申请号：US13045830
申请日：2011-03-11
申请人： Dennis Hui , Shing-Wa Wong , Jung-Fu Cheng , Jiann-Ching Guey , Kambiz Zangi
发明人： Dennis Hui , Shing-Wa Wong , Jung-Fu Cheng , Jiann-Ching Guey , Kambiz Zangi
IPC分类号： H04W4/00
CPC分类号： H04L5/0073 , H04B7/024 , H04B7/0452 , H04L5/0035 , H04W92/12 , H04W92/20
摘要： The amount of multi-antenna signals to be transmitted over the backhaul in a Coordinated MultiPoint (CoMP) system from the central processor (CP) to each base station is reduced. Embodiments of the present invention exploit characteristics of the underlying signal structure, and distribute some baseband processing functionalities—such as channel coding and the application of the multi-user precoding—from the CP to the remote base stations. Additionally, in some embodiments the non-precoded parts of multi-antenna signals are broadcast from the CP to all base stations in the CoMP system, to further reduce the burden on backhaul communications. In one embodiment, the backhaul network is a Gigabit-capable Passive Optical Network (GPON).
摘要翻译：通过协调多点（CoMP）系统从中央处理器（CP）到每个基站的回程传输的多天线信号的数量减少。本发明的实施例利用底层信号结构的特征，并将一些基带处理功能（诸如信道编码和多用户预编码的应用）从CP分发到远程基站。此外，在一些实施例中，多天线信号的非预编码部分从CP广播到CoMP系统中的所有基站，以进一步减少回程通信的负担。在一个实施例中，回程网络是千兆位无源光网络（GPON）。

6. 发明申请

US20120230691A1 METHOD OF DOWNLINK SIGNAL TRANSPORT OVER BACKHAUL COMMUNICATIONS THROUGH DISTRIBUTED PROCESSING 有权
标题翻译：通过分布式处理的后向通信的下行信号传输方法
公开(公告)号：US20120230691A1
公开(公告)日：2012-09-13
申请号：US13045830
申请日：2011-03-11
申请人： Dennis Hui , Shing-Wa Wong , Jung-Fu Cheng , Jiann-Ching Guey , Kambiz Zangi
发明人： Dennis Hui , Shing-Wa Wong , Jung-Fu Cheng , Jiann-Ching Guey , Kambiz Zangi
IPC分类号： H04L25/49 , H04J14/00
CPC分类号： H04L5/0073 , H04B7/024 , H04B7/0452 , H04L5/0035 , H04W92/12 , H04W92/20
摘要： The amount of multi-antenna signals to be transmitted over the backhaul in a Coordinated MultiPoint (CoMP) system from the central processor (CP) to each base station is reduced. Embodiments of the present invention exploit characteristics of the underlying signal structure, and distribute some baseband processing functionalities—such as channel coding and the application of the multi-user precoding—from the CP to the remote base stations. Additionally, in some embodiments the non-precoded parts of multi-antenna signals are broadcast from the CP to all base stations in the CoMP system, to further reduce the burden on backhaul communications. In one embodiment, the backhaul network is a Gigabit-capable Passive Optical Network (GPON).
摘要翻译：通过协调多点（CoMP）系统从中央处理器（CP）到每个基站的回程传输的多天线信号的数量减少。本发明的实施例利用底层信号结构的特征，并将一些基带处理功能（诸如信道编码和多用户预编码的应用）从CP分发到远程基站。此外，在一些实施例中，多天线信号的非预编码部分从CP广播到CoMP系统中的所有基站，以进一步减少回程通信的负担。在一个实施例中，回程网络是千兆位无源光网络（GPON）。

7. 发明授权

US08526407B2 Extended coordinated multipoint cells to mitigate inter-comp-cell downlink interference 有权
标题翻译：扩展的协调多点信元以减轻组间小区下行链路干扰
公开(公告)号：US08526407B2
公开(公告)日：2013-09-03
申请号：US12465864
申请日：2009-05-14
申请人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
发明人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
IPC分类号： H04W4/00
CPC分类号： H04W72/1231 , H04B7/024 , H04L5/0066 , H04L5/0091
摘要： Inter-CoMP cell interference is reduced by “extending” at least one CoMP cell to include UEs served by a neighboring CoMP cell in the extended CoMP cell's transmission calculations, so as to minimize interference to the UEs served by other CoMP cells. Each UE in a border sub-cell identifies neighboring CoMP cells from which it receives interference in excess of a threshold value, and includes the interfering CoMP cells in a close-neighbor set. The close-neighbor set is transmitted to the UE's serving CoMP cell controller. When downlink transmissions are scheduled to the target UE, the controller notifies the neighboring CoMP cells in the close-neighbor set, identifying the target UE. Those CoMP cells then use information about the channel conditions from their transmit antennas to the target UE receive antennas to compute transmissions to UEs they serve, with the constraint that interference to the target UE is below a predetermined level.
摘要翻译：通过在扩展的CoMP小区的传输计算中“延伸”至少一个CoMP小区以包括由相邻CoMP小区服务的UE来减少CoMP间小区干扰，以便最小化对由其他CoMP小区服务的UE的干扰。边界子小区中的每个UE识别出相邻的CoMP小区，其接收到超过阈值的干扰，并且包括邻近组中的干扰CoMP小区。近邻集合被发送到UE的服务CoMP小区控制器。当向目标UE调度下行链路传输时，控制器通知近邻集中的相邻CoMP小区，识别目标UE。那些CoMP小区然后使用关于从其发射天线到目标UE接收天线的信道条件的信息来计算对它们所服务的UE的传输，其限制是对目标UE的干扰低于预定水平。

8. 发明申请

US20100291936A1 EXTENDED COORDINATED MULTIPOINT CELLS TO MITIGATE INTER-COMP-CELL DOWNLINK INTERFERENCE 有权
标题翻译：扩展协调的多点细胞以减轻细胞间下行链路干扰
公开(公告)号：US20100291936A1
公开(公告)日：2010-11-18
申请号：US12465864
申请日：2009-05-14
申请人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
发明人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
IPC分类号： H04W72/00 , H04B7/00
CPC分类号： H04W72/1231 , H04B7/024 , H04L5/0066 , H04L5/0091
摘要： Inter-CoMP cell interference is reduced by “extending” at least one CoMP cell to include UEs served by a neighboring CoMP cell in the extended CoMP cell's transmission calculations, so as to minimize interference to the UEs served by other CoMP cells. Each UE in a border sub-cell identifies neighboring CoMP cells from which it receives interference in excess of a threshold value, and includes the interfering CoMP cells in a close-neighbor set. The close-neighbor set is transmitted to the UE's serving CoMP cell controller. When downlink transmissions are scheduled to the target UE, the controller notifies the neighboring CoMP cells in the close-neighbor set, identifying the target UE. Those CoMP cells then use information about the channel conditions from their transmit antennas to the target UE receive antennas to compute transmissions to UEs they serve, with the constraint that interference to the target UE is below a predetermined level.
摘要翻译：通过在扩展的CoMP小区的传输计算中“延伸”至少一个CoMP小区以包括由相邻CoMP小区服务的UE来减少CoMP间小区干扰，以便最小化对由其他CoMP小区服务的UE的干扰。边界子小区中的每个UE识别出相邻的CoMP小区，其接收到超过阈值的干扰，并且包括邻近组中的干扰CoMP小区。近邻集合被发送到UE的服务CoMP小区控制器。当向目标UE调度下行链路传输时，控制器通知近邻集中的相邻CoMP小区，识别目标UE。那些CoMP小区然后使用关于从其发射天线到目标UE接收天线的信道条件的信息来计算对它们所服务的UE的传输，其限制是对目标UE的干扰低于预定水平。

9. 发明授权

US08897834B2 Signaling support for antenna selection using subset lists and subset masks 有权
标题翻译：使用子集列表和子集掩码进行天线选择的信令支持
公开(公告)号：US08897834B2
公开(公告)日：2014-11-25
申请号：US13292738
申请日：2011-11-09
申请人： Karl J. Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas B. Karlsson
发明人： Karl J. Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas B. Karlsson
IPC分类号： H04M1/00 , H04B7/00 , H04W4/00 , H04B7/02 , H04B7/10 , H04B7/06 , H04W88/02
CPC分类号： H04B7/0619 , H04B7/024 , H04B7/061 , H04B7/0639 , H04B7/0691 , H04B7/10 , H04W72/12 , H04W72/1278 , H04W88/02
摘要： A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.
摘要翻译：本文描述的通信设备具有控制（或至少部分控制），一个或多个基站中的虚拟天线将用于传输。在一个实施例中，移动电话执行以下步骤：（1）从识别与基站相关联的虚拟天线的配置接收来自调度单元的天线子集列表; （2）使用天线子集列表来选择用于传输的虚拟天线的配置中的哪些虚拟天线; 并且（3）发送包含指示/请求基站/调度单元使用所选择的虚拟天线进行传输的信息的天线选择信号（到调度单元）。

10. 发明授权

US08406326B2 Exploiting channel time correlation to reduce channel state information feedback bitrate 有权
标题翻译：利用信道时间相关来减少信道状态信息反馈比特率
公开(公告)号：US08406326B2
公开(公告)日：2013-03-26
申请号：US12779106
申请日：2010-05-13
申请人： Jung-Fu Cheng , Dennis Hui , Kambiz Zangi , Leonid Krasny
发明人： Jung-Fu Cheng , Dennis Hui , Kambiz Zangi , Leonid Krasny
IPC分类号： H04K1/10
CPC分类号： H04W72/0413 , H04L1/0019 , H04L1/0028 , H04L1/20 , H04W72/042
摘要： The required bitrate for reporting channel state information from a network transceiver to the network is dramatically reduced, while maintaining fidelity of channel estimates, by exploiting prior channel estimates and the time correlation of channel response. For a selected set of sub-carriers, the transceiver estimates channel frequency response from pilot signals. The transceiver also predicts the frequency response for each selected sub-carrier, by multiplying a state vector comprising prior frequency response estimate and a coefficient vector comprising linear predictive coefficients. The predicted frequency response is subtracted from the estimated frequency response, and the prediction error is quantized and transmitted to the network. The network maintains a corresponding state vector and predictive coefficient vector, and also predicts a frequency response for each selected sub-carrier. The received prediction error is inverse quantized and subtracted from the predicted frequency response to yield a frequency response corresponding to that estimated at the transceiver.
摘要翻译：通过利用先前的信道估计和信道响应的时间相关性，可以显着降低从网络收发器向网络报告信道状态信息所需的比特率，同时保持信道估计的保真度。对于所选择的一组子载波，收发器估计来自导频信号的信道频率响应。收发器还通过将包括先前频率响应估计的状态向量和包括线性预测系数的系数向量相乘来预测每个所选子载波的频率响应。从估计的频率响应中减去预测的频率响应，并将预测误差量化并发送到网络。网络维持相应的状态向量和预测系数向量，并且还预测每个选择的子载波的频率响应。接收的预测误差被反量化，并从预测的频率响应中减去，以产生与在收发机处估计的频率响应相对应的频率响应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式