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：US08842621B2

公开(公告)日：2014-09-23

申请号：US13218829

申请日：2011-08-26

申请人： Martin Lysejko ,  Andrew Logothetis

发明人： Martin Lysejko ,  Andrew Logothetis

IPC分类号： H04W4/00 ,  H04W72/08 ,  H04W92/20 ,  H04W72/12 ,  H04W28/06 ,  H04W28/04

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

摘要： A wireless network, connecting network users to a communications network, comprises base stations connected to the communications network and terminals connected to the network users, each terminal having a link with a base station to form a base station/terminal pair, the links established over a wireless resource comprising resource blocks. The method comprises: determining, for each base station/terminal pair, a set of resource utilization fractions; determining a set of co-channel interference matrices for each network component, distributing, to each base station, corresponding elements from the sets of resource utilization fractions and the sets of co-channel interference matrices; suppressing, in each network component, co-channel interference in dependence on the determined co-channel interference matrix; and dynamically establishing links required to handle the network traffic for each base station by selecting from the resource blocks in accordance with the resource utilization fractions.

摘要翻译： 将网络用户连接到通信网络的无线网络包括连接到通信网络的基站和连接到网络用户的终端，每个终端与基站具有链路以形成基站/终端对，建立在 包括资源块的无线资源。 该方法包括：为每个基站/终端对确定一组资源利用率; 确定每个网络组件的一组同信道干扰矩阵，从所述资源利用分数集合和所述同信道干扰矩阵集合向每个基站分配对应的元素; 在每个网络组件中，根据确定的同信道干扰矩阵抑制同信道干扰; 以及根据所述资源利用率从所述资源块中选择来动态建立处理每个基站的网络业务所需的链路。

公开(公告)号：US20070135172A1

公开(公告)日：2007-06-14

申请号：US11564248

申请日：2006-11-28

申请人： MARTIN LYSEJKO ,  Andrew Logothetis

发明人： MARTIN LYSEJKO ,  Andrew Logothetis

IPC分类号： H04M1/00

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 telecommunications units to the point to multipoint device, the point to multipoint device is operable to define a sequence of variable duration communication channels, each communication channel being allocatable to one of the telecommunications units. The point to multipoint device has training sequence storage for storing a training sequence indication indicating a training sequence associated with the point to multipoint device. Repetition rate storage is also provided for storing a repetition rate at which the training sequence is to be repeated in the sequence of communication channels, the repetition rate being the same for all point to multipoint devices in the wireless network. An interface receives a synchronisation signal issued to all point to multipoint devices in the wireless network, with the synchronisation signal being used to determine a time at which a first occurrence of the training sequence is to occur within the sequence of communication channels. Communication channel control logic defines the sequence of variable duration communication channels and causes control data to be transmitted to the telecommunications units identifying the sequence of channels, the training sequence indication and the repetition rate. An antenna array provides a reception beam for receiving the communication from the telecommunications units, and beamforming logic is used to determine beamforming weights used to produce the reception beam. The beamforming logic repeats the determination of beamforming weights at the repetition rate coincident with the appearance of the training sequence in the sequence of communication channels. This provides a particularly effective technique for reducing co-channel interference within the wireless network.

公开(公告)号：US20120082044A1

公开(公告)日：2012-04-05

申请号：US13218722

申请日：2011-08-26

申请人： Martin Lysejko ,  Andrew Logothetis

发明人： Martin Lysejko ,  Andrew Logothetis

IPC分类号： H04W72/04 ,  H04L12/26 ,  H04W24/00 ,  H04W74/04

CPC分类号： H04W24/02 ,  H04W16/04 ,  H04W84/047 ,  H04W88/085 ,  H04W92/045

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 comprises a plurality of feeder base stations coupled to the communications network and a plurality of feeder terminals coupled to associated access base stations. Each feeder terminal has a feeder link with a feeder base station, and the feeder links are established over a wireless resource comprising a plurality of resource blocks. Sounding data obtained from the wireless feeder network is used to compute an initial global schedule to allocate to each feeder link at least one resource block, and the global schedule is distributed whereafter the wireless feeder network operates in accordance with the currently distributed global schedule to pass traffic between the communications network and the access base stations. Using traffic reports received during use, an evolutionary algorithm is applied to modify the global schedule, with the resultant updated global schedule then being distributed for use. This enables the allocation of resource blocks to individual feeder links to be varied over time taking account of traffic within the wireless feeder network, thereby improving spectral efficiency.

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。 无线馈线网络包括耦合到通信网络的多个馈线基站和耦合到相关联的接入基站的多个馈线终端。 每个馈线终端具有与馈电基站的馈线链路，并且馈线链路通过包括多个资源块的无线资源建立。 使用从无线馈线网络获得的声音数据来计算初始全局调度，以分配给每个馈线链路至少一个资源块，并且全局调度分布在无线馈线网络根据当前分布的全局调度传递之后运行 通信网络和接入基站之间的流量。 使用在使用期间收到的流量报告，应用进化算法来修改全局调度，随后生成的更新后的全局调度被分发供使用。 这使得能够在考虑到无线馈线网络内的业务的情况下，随着时间的推移随着时间而改变对各个馈线链路的资源块的分配，从而提高频谱效率。

公开(公告)号：US07627348B2

公开(公告)日：2009-12-01

申请号：US11564248

申请日：2006-11-28

申请人： Martin Lysejko ,  Andrew Logothetis

发明人： Martin Lysejko ,  Andrew Logothetis

IPC分类号： H04B1/38 ,  H04B3/20 ,  H04B7/216 ,  H04J3/06

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 operates a sequence of variable duration communication channels, allocatable to telecommunications units. A training sequence indication and a repetition rate indication are stored indicating a training sequence and repetition rate for the training sequence in the sequence of communication channels associated with the point to multipoint device. An interface receives a synchronization signal issued to all point to multipoint devices in the wireless network, and uses it to determine a time for a first occurrence of the training sequence to occur. Communication channel control logic causes control data to be transmitted to the telecommunications units identifying the sequence of channels, the training sequence indication and the repetition rate. Beamforming logic determines beamforming weights used to produce a reception beam at an antenna array.

摘要翻译： 用于无线网络的点到多点设备操作可分配给电信单元的可变持续时间通信信道的序列。 存储训练序列指示和重复率指示，指示与点对多点设备相关联的通信信道的序列中的训练序列的训练序列和重复率。 接口接收发给无线网络中的所有点对多点设备的同步信号，并使用它来确定出现训练序列的第一次发生的时间。 通信信道控制逻辑使得控制数据被发送到识别信道序列的电信单元，训练序列指示和重复率。 波束成形逻辑决定用于在天线阵列处产生接收波束的波束成形权重。

公开(公告)号：US06295326B1

公开(公告)日：2001-09-25

申请号：US09516715

申请日：2000-03-01

申请人： Shane Michael Tonissen ,  Efstratios Skafidas ,  Andrew Logothetis

发明人： Shane Michael Tonissen ,  Efstratios Skafidas ,  Andrew Logothetis

IPC分类号： H04B110

CPC分类号： H04L25/03038 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03617

摘要： A computer-implemented approach for reducing distortion in digital communications systems generally involves obtaining an optimal estimation of the original data using a Kalman filter with an increased length state to remove substantially all ISI in the time domain. The use of an increased length state in the Kalman filter provides a more accurate estimate of the transmitted data with relatively little additional computational cost. Subsequent equalization may also be performed in the frequency domain to correct any residual amplitude and phase distortion.

摘要翻译： 用于减少数字通信系统中的失真的计算机实现的方法通常涉及使用具有增加的长度状态的卡尔曼滤波器来获得原始数据的最佳估计，以在时域中去除基本上所有的ISI。 在卡尔曼滤波器中增加长度状态的使用通过相对少的附加计算成本提供对发射数据的更准确的估计。 还可以在频域中执行随后的均衡以校正任何残余幅度和相位失真。

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。