公开(公告)号：US20120082061A1

公开(公告)日：2012-04-05

申请号：US13218744

申请日：2011-08-26

申请人： Martin Lysejko ,  Andrew Logothetis

发明人： Martin Lysejko ,  Andrew Logothetis

IPC分类号： H04W16/18

CPC分类号： H04W72/1205 ,  H04B7/0413 ,  H04L5/0073 ,  H04W24/02 ,  H04W88/085 ,  H04W92/20

摘要： An apparatus and method are provided for controlling a wireless feeder network which connects access base stations to a communications network. The wireless feeder network comprises a plurality of feeder base stations connected to the communications network and a plurality of feeder terminals connected to the plurality of access base stations. A sounding schedule is determined for the wireless feeder network in dependence on a visibility matrix, the visibility matrix indicative of visibility via the wireless feeder network between each of the plurality of feeder base stations and each of the plurality of feeder terminals. Then a sounding procedure within the wireless feeder network is controlled in accordance with the sounding schedule. The visibility matrix enables a coordinated sounding procedure to be carried out, allowing more accurate channel metrics for the wireless channels of the network to be determined which are not adversely affected by interference between elements of the network.

摘要翻译： 提供了一种用于控制将接入基站连接到通信网络的无线馈线网络的装置和方法。 无线馈线网络包括连接到通信网络的多个馈线基站和连接到多个接入基站的多个馈线终端。 根据可见矩阵确定无线馈线网络的探测计划，可视矩阵表示多个馈线基站中的每一个与多个馈线终端中的每一个之间经由无线馈线网络的可见性的可见性矩阵。 然后根据探测时间表控制无线馈线网络内的探测过程。 可见性矩阵使得能够执行协调的探测过程，从而允许确定网络的无线信道的更准确的信道度量，其不受网络元件之间的干扰的不利影响。

公开(公告)号：US07664533B2

公开(公告)日：2010-02-16

申请号：US10704158

申请日：2003-11-10

申请人： Andrew Logothetis ,  David Astely

发明人： Andrew Logothetis ,  David Astely

IPC分类号： H04M1/00

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H01Q3/40 ,  H01Q25/002

摘要： An antenna array in a radio node includes multiple antenna elements for transmitting a wider beam covering a majority of a sector cell that includes a common signal and a narrower beam covering only a part of the sector cell that includes a mobile user-specific signal. Transmitting circuitry is coupled to the antenna array, and processing circuitry is coupled to the transmitting circuitry. The processing circuitry ensures the user-specific signal and the common signal in a mixed beam embodiment are in-phase and time-aligned at the antenna array. In a steered beam embodiment, the processing circuitry ensures the user-specific signal and the common signal are time-aligned and have a controlled phase difference when received at mobile stations in the sector cell. In both embodiments, distortions in the common signal and the user-specific signal associated with their conversion from baseband frequency to radio frequency are also compensated. And in the steered beam embodiment, beam forming weights are used not only to radiate a narrower beam to the desired mobile user but also to direct a wider common signal beam to reach all mobile users in the cell.

摘要翻译： 无线电节点中的天线阵列包括多个天线元件，用于发射覆盖包括公共信号的扇区小区的大部分的较宽波束，以及仅覆盖包括移动用户专用信号的扇区小区的一部分的较窄波束。 发射电路耦合到天线阵列，并且处理电路耦合到发射电路。 处理电路确保混合波束实施例中的用户特定信号和公共信号在天线阵列处是同相和时间对准的。 在转向光束实施例中，处理电路确保用户特定信号和公共信号是时间对准的，并且在扇区小区中的移动台处接收时具有受控的相位差。 在这两个实施例中，公共信号的失真以及与从基带频率到射频的转换相关联的用户特定信号也被补偿。 并且在转向束实施例中，波束形成权重不仅用于将较窄的波束辐射到期望的移动用户，而且还用于引导较宽的公共信号波束以到达小区中的所有移动用户。

公开(公告)号：US20080198793A1

公开(公告)日：2008-08-21

申请号：US11564232

申请日：2006-11-28

申请人： Martin Lysejko ,  Andrew Logothetis

发明人： Martin Lysejko ,  Andrew Logothetis

IPC分类号： H04Q7/00

CPC分类号： H04W16/28 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/0851

摘要： A point to multipoint device for use in a wireless network to provide wireless communication with a plurality of telecommunications units is described, for communication from the point to multipoint device to the telecommunications units, the point to multipoint device being operable to employ multiple sets of beams, at any point in time one set being used. The point to multipoint device comprises beam set generation logic for generating the multiple sets of beams arranged into one or more groups, each group comprising one beam from each set. Within each group the beams of that group are orthogonal with respect to each other, and each beam within each set is generated randomly with respect to other beams in that set. An interface is provided for receiving a synchronisation signal issued to all point to multipoint devices in the wireless network. Beam switching logic is then used to determine, having regard to the synchronisation signal, switch times at which the point to multipoint device switches from one set of beams to another set of beams, the switch times being the same for all point to multipoint devices in the wireless network. An antenna array is controlled by the beam switching logic to produce at any point in time one of the sets of beams for transmitting data forming the communication to the telecommunications units. The use of such sets of beams has been found to lower the average co-channel interference observed within the wireless network.

摘要翻译： 描述了用于在无线网络中提供与多个电信单元的无线通信的点对多点设备，用于从点对多点设备到电信单元的通信，点对多点设备可操作以使用多组波束 在任何时间点使用一组。 点对多点设备包括波束组生成逻辑，用于产生布置成一个或多个组的多组波束，每组包括来自每组的一个波束。 在每组内，该组的光束相对于彼此正交，并且每组中的每个光束相对于该组中的其它光束随机生成。 提供接口，用于接收发给无线网络中的所有点对多点设备的同步信号。 然后，光束切换逻辑被用于确定，考虑到同步信号，点对多点设备从一组波束切换到另一组波束的切换时间，所有点对多点设备的切换时间相同， 无线网络。 天线阵列由波束切换逻辑控制，以在任何时间点产生一组波束，用于将形成通信的数据传送到电信单元。 已经发现使用这样的波束来降低在无线网络内观测到的平均同信道干扰。

公开(公告)号：US20050101352A1

公开(公告)日：2005-05-12

申请号：US10704158

申请日：2003-11-10

申请人： Andrew Logothetis ,  David Astely

发明人： Andrew Logothetis ,  David Astely

IPC分类号： H01Q1/24 ,  H01Q3/26 ,  H01Q3/40 ,  H01Q25/00 ,  H04B7/06 ,  H04M1/00

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H01Q3/40 ,  H01Q25/002

摘要： An antenna array in a radio node includes multiple antenna elements for transmitting a wider beam covering a majority of a sector cell that includes a common signal and a narrower beam covering only a part of the sector cell that includes a mobile user-specific signal. Transmitting circuitry is coupled to the antenna array, and processing circuitry is coupled to the transmitting circuitry. The processing circuitry ensures the user-specific signal and the common signal in a mixed beam embodiment are in-phase and time-aligned at the antenna array. In a steered beam embodiment, the processing circuitry ensures the user-specific signal and the common signal are time-aligned and have a controlled phase difference when received at mobile stations in the sector cell. In both embodiments, distortions in the common signal and the user-specific signal associated with their conversion from baseband frequency to radio frequency are also compensated. And in the steered beam embodiment, beam forming weights are used not only to radiate a narrower beam to the desired mobile user but also to direct a wider common signal beam to reach all mobile users in the cell.

摘要翻译： 无线电节点中的天线阵列包括多个天线元件，用于发射覆盖包括公共信号的扇区小区的大部分的较宽波束，以及仅覆盖包括移动用户专用信号的扇区小区的一部分的较窄波束。 发射电路耦合到天线阵列，并且处理电路耦合到发射电路。 处理电路确保混合波束实施例中的用户特定信号和公共信号在天线阵列处是同相和时间对准的。 在转向光束实施例中，处理电路确保用户特定信号和公共信号是时间对准的，并且在扇区小区中的移动台处接收时具有受控的相位差。 在这两个实施例中，公共信号的失真以及与从基带频率到射频的转换相关联的用户特定信号也被补偿。 并且在转向束实施例中，波束形成权重不仅用于将较窄的波束辐射到期望的移动用户，而且还用于引导较宽的公共信号波束以到达小区中的所有移动用户。

公开(公告)号：US20050064872A1

公开(公告)日：2005-03-24

申请号：US10668363

申请日：2003-09-24

申请人： Afif Osseiran ,  Andrew Logothetis ,  Marten Ericson

发明人： Afif Osseiran ,  Andrew Logothetis ,  Marten Ericson

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04L12/56 ,  H04W16/28 ,  H04W72/08 ,  H04W72/12 ,  H04Q7/20

CPC分类号： H04W72/1231 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0619 ,  H04W16/28

摘要： A radio base station includes multiple antennas associated with a cell. Multiple mobile radios are selected to receive transmissions over a shared radio channel during a predetermined time interval. Information is transmitted over the shared radio channel to multiple mobile radios in the cell during the predetermined time interval using multiple antenna beams. As a result, interference from the transmission appears as white additive Gaussian noise in time and in space in the cell. A “flashlight effect” caused by a single beam transmission over the shared channel during a predetermined time interval that would normally detrimentally impact mobile channel quality detection is avoided. Other methods for avoiding the flashlight effect are described.

摘要翻译： 无线电基站包括与小区相关联的多个天线。 多个移动无线电被选择以在预定的时间间隔期间通过共享无线电信道接收传输。 信息通过共享无线电信道在预定时间间隔内使用多个天线波束在小区中的多个移动无线电发射。 结果，来自传输的干扰在时间和空间中表现为白色加性高斯噪声。 避免了在通常不利地影响移动信道质量检测的预定时间间隔期间通过共享信道上的单个波束传输引起的“手电筒效应”。 描述了避免手电筒效应的其他方法。

公开(公告)号：US09300496B2

公开(公告)日：2016-03-29

申请号：US14355829

申请日：2014-03-17

申请人： Airspan Networks Inc. ,  Andrew Logothetis ,  Martin Lysejko

发明人： Andrew Logothetis ,  Martin Lysejko

IPC分类号： H04B1/10 ,  H04B7/04 ,  H04L25/02 ,  H04L1/00 ,  H04L1/20 ,  H04L5/00

CPC分类号： H04L25/024 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/203 ,  H04L5/0048 ,  H04L25/0226

摘要： A method and system are provided for determining modulation control information and a reference signal design to be used by a transmitter node when generating a transmit signal to transmit from a transmitter (logical antenna) of the transmitter node over a channel of a wireless link to a recipient node. The modulation control information is used by the transmitter node to convert source data into an information bearing signal, and the information bearing signal is combined with a reference signal conforming to the reference signal design in order to produce the transmit signal. The method comprises (a) selecting a candidate reference signal design from a plurality of candidate reference signal designs, (b) determining channel state information for the channel, (c) determining, from the channel state information, signal to noise ratio information for said channel, and (d) for each of a plurality of candidate modulation control information, using the signal to noise ratio information to determine a quality indication for said channel. Steps (a) to (d) are then repeated for each candidate reference signal design in said plurality. Thereafter a winning quality indication is selected from the determined quality indications, and the combination of candidate reference signal design and candidate modulation control information associated with the winning quality indication is then output to the transmitting node. By such an approach, quality indications can be established for each combination of possible reference signal design and possible modulation control information, and hence not only is the inherent channel estimation accuracy achievable using each possible reference signal design considered, but also the data transmission efficiency and robustness to channel effects of each possible modulation control information is also taken into account.

公开(公告)号：US20130242899A1

公开(公告)日：2013-09-19

申请号：US13783023

申请日：2013-03-01

申请人： Martin Lysejko ,  Andrew Logothetis ,  David Warman

发明人： Martin Lysejko ,  Andrew Logothetis ,  David Warman

IPC分类号： H04W76/00

CPC分类号： H04W76/00 ,  H04L1/004 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048

摘要： A wireless feeder network comprises feeder base stations coupled to the communications network and feeder terminals coupled to associated access base stations of the access network. A group of wireless network components form elements of a feeder cluster and the elements of the feeder cluster are connected by an additional communications resource configured to be operated in parallel with the wireless resource of the wireless feeder network. Both a primary and secondary element of the feeder cluster seek to decode at least one resource block allocated to the primary element for reception of data. Information derived from the secondary decoded data is transmitted from the secondary element to the primary element via the additional communications resource. The primary element then performs a revised decoding process additionally using the information received from said secondary element to improve its own decode probability.

摘要翻译： 无线馈线网络包括耦合到通信网络的馈线基站和耦合到接入网络的相关联的接入基站的馈线终端。 一组无线网络组件形成馈线集群的元件，并且馈线集群的元件通过被配置为与无线馈线网络的无线资源并行操作的附加通信资源连接。 馈线集群的主要和次要组件都寻求对分配给主要元件的至少一个资源块进行解码以接收数据。 从辅助解码数据导出的信息经由附加通信资源从次要元件发送到主要元件。 然后，主要元件另外使用从所述次要元件接收的信息来执行修改的解码处理，以改善其自身的解码概率。

公开(公告)号：US20120082050A1

公开(公告)日：2012-04-05

申请号：US13252131

申请日：2011-10-03

申请人： Martin Lysejko ,  Andrew Logothetis ,  David Warman

发明人： Martin Lysejko ,  Andrew Logothetis ,  David Warman

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W72/082 ,  H04W28/04 ,  H04W28/06 ,  H04W72/1231 ,  H04W72/1278 ,  H04W92/20

摘要： An apparatus and method are provided for controlling a wireless feeder network used to couple access base stations of an access network with a communications network. The wireless feeder network connects base stations coupled to the communications network and feeder terminals coupled to associated access base stations. Each feeder terminal has a feeder link with a feeder base station. The method includes allocating resource blocks for the feeder base stations and feeder terminals to establish the feeder links. The resource blocks are allocated between a centrally administered schedule and at least one feeder base station administered schedule. Network traffic being carried by the feeder links is monitored to determine at least one characteristic. The resource blocks are reallocated between the centrally administered schedule and the at least one feeder base station administered schedule in dependence on the at least one characteristic of the network traffic.

摘要翻译： 提供了一种用于控制用于将接入网络的接入基站与通信网络耦合的无线馈线网络的装置和方法。 无线馈线网络连接耦合到通信网络的基站和耦合到相关联的接入基站的馈线终端。 每个馈线端子具有与馈电基站的馈线链路。 该方法包括为馈线基站和馈线终端分配资源块以建立馈线链路。 资源块在中央管理的时间表和至少一个馈线基站管理时间表之间分配。 监视由馈线链路携带的网络流量以确定至少一个特征。 资源块根据网络业务的至少一个特性，在集中管理的时间表和至少一个馈线基站管理的时间表之间重新分配。

公开(公告)号：US20110058630A1

公开(公告)日：2011-03-10

申请号：US12947452

申请日：2010-11-16

申请人： Afif OSSEIRAN ,  Andrew Logothetis

发明人： Afif OSSEIRAN ,  Andrew Logothetis

IPC分类号： H04L27/00

CPC分类号： H04B7/208 ,  H04B7/026 ,  H04L5/0023 ,  H04L27/2607 ,  H04L27/2628 ,  H04L27/265

摘要： A wireless communication system with relaying to enhance performance provides artificial frequency selectivity and spatial diversity by introducing delay diversity. A OFDM chunk is subjected to a 2D cyclic prefix by pre-appending to a representation of the chunk the last column of the representation. The last row of the pre-appended chunk is copied to the top of the augmented chunk forming an augmented chunk.

摘要翻译： 具有中继以增强性能的无线通信系统通过引入延迟分集来提供人工频率选择性和空间分集。 通过预先附加到表示的最后一列的块的表示来对OFDM块进行二维循环前缀。 预先附加的块的最后一行被复制到扩展块的顶部，形成扩充的块。

公开(公告)号：US20070230605A1

公开(公告)日：2007-10-04

申请号：US11730003

申请日：2007-03-29

申请人： Afif Osseiran ,  Andrew Logothetis

发明人： Afif Osseiran ,  Andrew Logothetis

IPC分类号： H04K1/10

CPC分类号： H04B7/208 ,  H04B7/026 ,  H04L5/0023 ,  H04L27/2607 ,  H04L27/2628 ,  H04L27/265

摘要： The present invention relates to wireless communication systems wherein relaying is used to enhance performance. According to the method and arrangement of the invention artificial frequency selectivity and spatial diversity is provided by introducing delay diversity. A OFDM chunk is subjected to a 2D cyclic prefix by pre-appending to a representation of the chunk the last column of the representation. The last rows of the pre-appended chunk is copied to the top of the augmented chunk forming an augmented chunk.

摘要翻译： 本发明涉及使用中继来增强性能的无线通信系统。 根据本发明的方法和布置，通过引入延迟分集来提供人工频率选择性和空间分集。 通过预先附加到表示的最后一列的块的表示来对OFDM块进行二维循环前缀。 预先附加的块的最后一行被复制到形成扩充块的扩充块的顶部。