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

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）。

2. 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）。

3. 发明授权

US08948138B2 Signal compression for backhaul communications using linear transformations 有权
标题翻译：使用线性变换的回程通信的信号压缩
公开(公告)号：US08948138B2
公开(公告)日：2015-02-03
申请号：US13070414
申请日：2011-03-23
申请人： Dennis Hui , Jung-Fu Cheng , Jiann-Ching Guey , Ali S. Khayrallah , Shing-Wa Wong
发明人： Dennis Hui , Jung-Fu Cheng , Jiann-Ching Guey , Ali S. Khayrallah , Shing-Wa Wong
IPC分类号： H04W4/00 , H04B7/02 , H03M7/30
CPC分类号： H04B7/024 , H03M7/3068 , H03M7/3082
摘要： A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.
摘要翻译：用于基站和诸如协调多点（CoMP）系统的中央处理器的网络处理单元之间的复数无线电信号的回程通信的压缩/解压缩方法显着地减少了回程带宽。利用无线IQ信号的空间和时间相关性来消除冗余并显着降低信号带宽。通过线性变换提取有意义的特征分量信号以形成无线电信号，并且可以根据其相对重要性以不同的比特率单独量化。可以基于无线电信号的空间和时间统计来实时地进行转换或者实时地进行转换。在后一种情况下，转换矩阵或矩阵也通过回程发送，以允许在接收端重建无线电信号。提出了生成转换矩阵的不同方法。

4. 发明申请

US20120236774A1 JOINT MANAGEMENT OF RADIO AND TRANSPORT RESOURCES 有权
标题翻译：无线电和运输资源的联合管理
公开(公告)号：US20120236774A1
公开(公告)日：2012-09-20
申请号：US13048226
申请日：2011-03-15
申请人： Jiann-Ching Guey , Shing-Wa Wong , Jung-Fu Cheng , Dennis Hui
发明人： Jiann-Ching Guey , Shing-Wa Wong , Jung-Fu Cheng , Dennis Hui
IPC分类号： H04W72/10
CPC分类号： H04W28/16 , H04W72/04 , H04W92/12
摘要： A system for managing radio access resources includes a joint radio resource management/transport resource management unit configured to communicate with a plurality of radio units over a transport network, to jointly allocate radio resources at the radio unit and transport resources on the transport network in response to requests from wireless terminals requesting access to radio resources from the radio units, to send a radio resource allocation schedule to the plurality of radio units that defines radio resource allocations for the wireless terminals, and to generate a transport resource allocation schedule that defines transport resource allocations for the wireless terminals. The system further includes a transport resource controller configured to receive the transport resource allocation schedule and to map user data to physical transport resources on the transport network in response to the transport resource allocation schedule.
摘要翻译：一种用于管理无线电接入资源的系统包括：联合无线电资源管理/传输资源管理单元，被配置为通过传输网络与多个无线电单元进行通信，以在无线电单元处共同分配无线电资源，并响应于传输网络上的资源传输向来自无线单元请求接入无线电资源的无线终端的请求向定义无线终端的无线资源分配的多个无线单元发送无线资源分配调度，并生成定义传输资源的传输资源分配调度为无线终端分配。该系统还包括传输资源控制器，其被配置为接收传输资源分配调度，并且响应于传输资源分配调度，将用户数据映射到传输网络上的物理传输资源。

5. 发明申请

US20120243468A1 SIGNAL COMPRESSION FOR BACKHAUL COMMUNICATIONS USING LINEAR TRANSFORMATIONS 有权
标题翻译：使用线性变换的反向通信的信号压缩
公开(公告)号：US20120243468A1
公开(公告)日：2012-09-27
申请号：US13070414
申请日：2011-03-23
申请人： Dennis Hui , Jung-fu Cheng , Jiann-Ching Guey , Ali S. Khayrallah , Shing-Wa Wong
发明人： Dennis Hui , Jung-fu Cheng , Jiann-Ching Guey , Ali S. Khayrallah , Shing-Wa Wong
IPC分类号： H04W4/00
CPC分类号： H04B7/024 , H03M7/3068 , H03M7/3082
摘要： A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.
摘要翻译：用于基站和诸如协调多点（CoMP）系统的中央处理器的网络处理单元之间的复数无线电信号的回程通信的压缩/解压缩方法显着地减少了回程带宽。利用无线IQ信号的空间和时间相关性来消除冗余并显着降低信号带宽。通过线性变换提取有意义的特征分量信号以形成无线电信号，并且可以根据其相对重要性以不同的比特率单独量化。可以基于无线电信号的空间和时间统计来实时地进行转换或者实时地进行转换。在后一种情况下，转换矩阵或矩阵也通过回程发送，以允许在接收端重建无线电信号。提出了生成转换矩阵的不同方法。

6. 发明授权

US08649341B2 Joint management of radio and transport resources 有权
标题翻译：广播和运输资源的联合管理
公开(公告)号：US08649341B2
公开(公告)日：2014-02-11
申请号：US13048226
申请日：2011-03-15
申请人： Jiann-Ching Guey , Shing-Wa Wong , Jung-Fu Cheng , Dennis Hui
发明人： Jiann-Ching Guey , Shing-Wa Wong , Jung-Fu Cheng , Dennis Hui
IPC分类号： H04L12/28
CPC分类号： H04W28/16 , H04W72/04 , H04W92/12
摘要： A system for managing radio access resources includes a joint radio resource management/transport resource management unit configured to communicate with a plurality of radio units over a transport network, to jointly allocate radio resources at the radio unit and transport resources on the transport network in response to requests from wireless terminals requesting access to radio resources from the radio units, to send a radio resource allocation schedule to the plurality of radio units that defines radio resource allocations for the wireless terminals, and to generate a transport resource allocation schedule that defines transport resource allocations for the wireless terminals. The system further includes a transport resource controller configured to receive the transport resource allocation schedule and to map user data to physical transport resources on the transport network in response to the transport resource allocation schedule.
摘要翻译：一种用于管理无线电接入资源的系统包括：联合无线电资源管理/传输资源管理单元，被配置为通过传输网络与多个无线电单元进行通信，以在无线电单元处共同分配无线电资源，并响应于传输网络上的资源传输向来自无线单元请求接入无线电资源的无线终端的请求向定义无线终端的无线资源分配的多个无线单元发送无线资源分配调度，并生成定义传输资源的传输资源分配调度为无线终端分配。该系统还包括传输资源控制器，其被配置为接收传输资源分配调度，并且响应于传输资源分配调度，将用户数据映射到传输网络上的物理传输资源。

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. 发明申请

US20130077658A1 SPATIALLY RANDOMIZED PILOT SYMBOL TRANSMISSION METHODS, SYSTEMS AND DEVICES FOR MULTIPLE INPUT/MULTIPLE OUTPUT (MIMO) WIRELESS COMMUNICATIONS 有权
标题翻译：用于多输入/多输出（MIMO）无线通信的空间引导符号传输方法，系统和设备
公开(公告)号：US20130077658A1
公开(公告)日：2013-03-28
申请号：US13247597
申请日：2011-09-28
申请人： Dennis Hui , Kumar Balachandran , Jung-Fu Cheng , Jiann-Ching Guey
发明人： Dennis Hui , Kumar Balachandran , Jung-Fu Cheng , Jiann-Ching Guey
IPC分类号： H04L27/28 , H04B1/38 , H04L27/00
CPC分类号： H04B7/0413 , H04B7/0615 , H04B7/0686 , H04L5/0023 , H04L5/005 , H04L25/0204 , H04L25/0226 , H04L2025/03426
摘要： Compressive sampling is used to generate pilot symbols to be transmitted over an array of antennas in a MIMO wireless communications device. A pilot symbol is transmitted over the array of antennas according to a spatially randomized antenna transmission function that randomly changes across the array of antennas. The randomized antenna transmission function may randomly select/deselect antennas and/or randomly change amplitude and/or phase of the pilot symbol transmission. Channel estimates can be constructed at a receiver based on the spatially randomized pilot symbols that were transmitted.
摘要翻译：压缩采样用于生成将在MIMO无线通信设备中通过天线阵列传输的导频符号。根据在天线阵列上随机变化的空间随机天线传输功能，在天线阵列上传输导频符号。随机天线发送功能可以随机地选择/取消选择天线和/或随机地改变导频符号传输的幅度和/或相位。可以基于发送的空间随机化导频符号在接收机处构造信道估计。

10. 发明授权

US09036684B2 Spatially randomized pilot symbol transmission methods, systems and devices for multiple input/multiple output (MIMO) wireless communications 有权
标题翻译：用于多输入/多输出（MIMO）无线通信的空间随机的导频符号传输方法，系统和设备
公开(公告)号：US09036684B2
公开(公告)日：2015-05-19
申请号：US13247597
申请日：2011-09-28
申请人： Dennis Hui , Kumar Balachandran , Jung-Fu Cheng , Jiann-Ching Guey
发明人： Dennis Hui , Kumar Balachandran , Jung-Fu Cheng , Jiann-Ching Guey
IPC分类号： H04B1/38 , H04B7/04 , H04B7/06 , H04L25/02 , H04L5/00 , H04L25/03
CPC分类号： H04B7/0413 , H04B7/0615 , H04B7/0686 , H04L5/0023 , H04L5/005 , H04L25/0204 , H04L25/0226 , H04L2025/03426
摘要： Compressive sampling is used to generate pilot symbols to be transmitted over an array of antennas in a MIMO wireless communications device. A pilot symbol is transmitted over the array of antennas according to a spatially randomized antenna transmission function that randomly changes across the array of antennas. The randomized antenna transmission function may randomly select/deselect antennas and/or randomly change amplitude and/or phase of the pilot symbol transmission. Channel estimates can be constructed at a receiver based on the spatially randomized pilot symbols that were transmitted.
摘要翻译：压缩采样用于生成将在MIMO无线通信设备中通过天线阵列传输的导频符号。根据在天线阵列上随机变化的空间随机天线传输功能，在天线阵列上传输导频符号。随机天线发送功能可以随机地选择/取消选择天线和/或随机地改变导频符号传输的幅度和/或相位。可以基于发送的空间随机化导频符号在接收机处构造信道估计。

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