公开(公告)号：US08526407B2

公开(公告)日：2013-09-03

申请号：US12465864

申请日：2009-05-14

Applicant: Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

Inventor： Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

IPC: H04W4/00

CPC classification number: H04W72/1231 ,  H04B7/024 ,  H04L5/0066 ,  H04L5/0091

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100291936A1

公开(公告)日：2010-11-18

申请号：US12465864

申请日：2009-05-14

Applicant: Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

Inventor： Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

IPC: H04W72/00 ,  H04B7/00

CPC classification number: H04W72/1231 ,  H04B7/024 ,  H04L5/0066 ,  H04L5/0091

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08737298B2

公开(公告)日：2014-05-27

申请号：US13045830

申请日：2011-03-11

Applicant: Dennis Hui ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Kambiz Zangi

Inventor： Dennis Hui ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Kambiz Zangi

IPC: H04W4/00

CPC classification number: H04L5/0073 ,  H04B7/024 ,  H04B7/0452 ,  H04L5/0035 ,  H04W92/12 ,  H04W92/20

Abstract: 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).

Abstract translation: 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）。

公开(公告)号：US20120230691A1

公开(公告)日：2012-09-13

申请号：US13045830

申请日：2011-03-11

Applicant: Dennis Hui ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Kambiz Zangi

Inventor： Dennis Hui ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Kambiz Zangi

IPC: H04L25/49 ,  H04J14/00

CPC classification number: H04L5/0073 ,  H04B7/024 ,  H04B7/0452 ,  H04L5/0035 ,  H04W92/12 ,  H04W92/20

Abstract: 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).

Abstract translation: 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）。

公开(公告)号：US09036684B2

公开(公告)日：2015-05-19

申请号：US13247597

申请日：2011-09-28

Applicant: Dennis Hui ,  Kumar Balachandran ,  Jung-Fu Cheng ,  Jiann-Ching Guey

Inventor： Dennis Hui ,  Kumar Balachandran ,  Jung-Fu Cheng ,  Jiann-Ching Guey

IPC: H04B1/38 ,  H04B7/04 ,  H04B7/06 ,  H04L25/02 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04B7/0413 ,  H04B7/0615 ,  H04B7/0686 ,  H04L5/0023 ,  H04L5/005 ,  H04L25/0204 ,  H04L25/0226 ,  H04L2025/03426

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130128788A1

公开(公告)日：2013-05-23

申请号：US13627009

申请日：2012-09-26

Applicant: Jiann-Ching Guey ,  Kumar Balachandran ,  Dennis Hui

Inventor： Jiann-Ching Guey ,  Kumar Balachandran ,  Dennis Hui

IPC: H04W76/04

CPC classification number: H04W76/28 ,  H04W52/0206 ,  H04W52/0216 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/24 ,  Y02D70/25

Abstract: Systems and methods are disclosed for efficient operation of wireless access nodes in a dense deployment of wireless access nodes in a cellular communication network. In general, the dense deployment of wireless access nodes includes multiple wireless access nodes in a service area. The service area is preferably, but not necessarily, a low-load service area. As used herein, a low-load service area is an area within an overall service area of the dense deployment of wireless access nodes in which all wireless access nodes are not needed to provide a desired data capacity. Overlapping radio coverage areas of the wireless access nodes in, or serving, the service area are leveraged to enable efficient operation of the wireless access nodes in the service area.

Abstract translation: 公开了用于在蜂窝通信网络中的无线接入节点的密集部署中的无线接入节点的有效操作的系统和方法。 通常，无线接入节点的密集部署包括服务区域中的多个无线接入节点。 服务区域优选但不一定是低负载服务区域。 如本文所使用的，低负载服务区域是无线接入节点的密集部署的总体服务区域内的区域，其中不需要所有无线接入节点来提供期望的数据容量。 利用服务区域内或服务于服务区域的无线接入节点的重叠无线电覆盖区域来实现服务区域中的无线接入节点的有效操作。

公开(公告)号：US20120244898A1

公开(公告)日：2012-09-27

申请号：US13072496

申请日：2011-03-25

Applicant: Jiann-Ching Guey ,  Dennis Hui

Inventor： Jiann-Ching Guey ,  Dennis Hui

IPC: H04B7/24

CPC classification number: H04W24/02 ,  H04W16/10

Abstract: An apparatus, system, and method for dynamic, distributed coordination of parameters between a plurality of base stations in a cellular telecommunication network. An inter-cell communication interface connecting each given base station with the given base station's neighboring base stations is extended to communicate parameter settings between the given base station and the neighboring base stations. An apparatus in each given base station receives from the given base station's neighboring base stations, parameter settings being utilized by the neighboring base stations for transmitting and/or receiving in associated neighboring cells. The apparatus utilizes the parameter settings received from the neighboring base stations as factors to determine local parameter settings for the given base station. The given base station then sends the local parameter settings and supplemental information to the neighboring base stations so that optimal network-wide parameter settings can be selected.

Abstract translation: 一种用于蜂窝电信网络中的多个基站之间的参数的动态，分布式协调的装置，系统和方法。 将每个给定基站与给定基站的相邻基站连接的小区间通信接口被扩展以在给定基站和相邻基站之间传送参数设置。 每个给定基站中的装置从给定基站的相邻基站接收相邻基站利用的参数设置，用于在相关联的相邻小区中发送和/或接收。 该装置利用从相邻基站接收的参数设置作为确定给定基站的本地参数设置的因素。 然后，给定的基站将本地参数设置和补充信息发送到相邻基站，使得可以选择最佳的全网络参数设置。

公开(公告)号：US20120243468A1

公开(公告)日：2012-09-27

申请号：US13070414

申请日：2011-03-23

Applicant: Dennis Hui ,  Jung-fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

Inventor： Dennis Hui ,  Jung-fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

IPC: H04W4/00

CPC classification number: H04B7/024 ,  H03M7/3068 ,  H03M7/3082

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08934930B2

公开(公告)日：2015-01-13

申请号：US13283003

申请日：2011-10-27

Applicant: Jiann-Ching Guey ,  Dennis Hui

Inventor： Jiann-Ching Guey ,  Dennis Hui

IPC: H04B7/00 ,  H04W24/02 ,  H04W24/04 ,  H04W92/24 ,  H04L12/911 ,  H04W92/20

CPC classification number: H04W24/02 ,  H04L47/822 ,  H04W24/04 ,  H04W92/20 ,  H04W92/24

Abstract: A distributed parameter update procedure is provided for updating parameters that do not have discrete values. When a parameter value is changed, a search is conducted of a parameter space to find a new parameter value minimizes some cost function. The cost function is derived based on the current parameter settings in neighboring nodes. The distributed parameter update procedure may simplify the search process by localizing the search of the parameter space for a new parameter value to the vicinity of the current parameter setting. In some embodiments, the search is conducted along a line of steepest descent emanating from the current parameter setting.

Abstract translation: 提供了分布式参数更新过程，用于更新不具有离散值的参数。 当一个参数值被改变时，进行一个参数空间的搜索以找到一个新的参数值，最小化一些成本函数。 成本函数是根据相邻节点中的当前参数设置得出的。 分布式参数更新过程可以通过将新参数值的参数空间的搜索定位到当前参数设置的附近来简化搜索过程。 在一些实施例中，沿着从当前参数设置发出的最速下降线进行搜索。

公开(公告)号：US08849207B2

公开(公告)日：2014-09-30

申请号：US13237325

申请日：2011-09-20

Applicant: Jiann-Ching Guey ,  Dennis Hui

Inventor： Jiann-Ching Guey ,  Dennis Hui

IPC: H04B15/00 ,  H04W24/02 ,  H04W92/20 ,  H04W72/04

CPC classification number: H04W24/02 ,  H04W72/0406 ,  H04W92/20

Abstract: A system comprises a communication device that chooses a parameter setting from a set of available parameter settings. The system may include multiple communication devices, and each available parameter setting may have an associated cost. The communication device may receive parameter setting information from one or more other communication devices in the system, and the parameter setting information may identify the parameter setting being used by the one or more communication devices in the system. The communication device may choose a parameter setting that is associated with the lowest cost based on the parameter setting information received from the one or more other communication devices in the system.

Abstract translation: 系统包括从一组可用参数设置中选择参数设置的通信设备。 系统可以包括多个通信设备，并且每个可用的参数设置可以具有相关联的成本。 通信设备可以从系统中的一个或多个其他通信设备接收参数设置信息，并且参数设置信息可以标识系统中一个或多个通信设备使用的参数设置。 通信设备可以基于从系统中的一个或多个其他通信设备接收的参数设置信息来选择与最低成本相关联的参数设置。