公开(公告)号：US09537546B2

公开(公告)日：2017-01-03

申请号：US13992753

申请日：2011-12-08

申请人： Carlos Cordeiro ,  Guoqing Li ,  Vallabhajosyula S. Somayazulu ,  Bahareh B. Sadeghi ,  Ali S. Sadri

发明人： Carlos Cordeiro ,  Guoqing Li ,  Vallabhajosyula S. Somayazulu ,  Bahareh B. Sadeghi ,  Ali S. Sadri

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04W76/00

CPC分类号： H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0691 ,  H04L5/0023 ,  H04W76/00

摘要： A system and method are provided to increase data rates available in mmWave wireless communication systems by adapting a multiple-input multiple-output (MIMO) in a next generation mmWave wireless communication system. The system and method advantageously employ the characteristics of mmWave antenna arrays, including multiple antenna elements in each antenna array, to implement the MIMO scheme by establishing multiple beamformed communication links between a mmWave transmitter and receiver. An outgoing signal is divided into multiple signal elements to correspond to the multiple beamformed links and each of the multiple signal elements is transmitted by the transmitter across a different one of the multiple beamformed links to be reassembled at the receiver. An antenna element allocation scheme is incorporated to assign specific numbers and configurations of antenna elements at each of the transmitted and receiver to each of the multiple beamformed communication links.

摘要翻译： 提供了一种通过在下一代mmWave无线通信系统中适配多输入多输出（MIMO）来增加mmWave无线通信系统中的可用数据速率的系统和方法。 该系统和方法有利地采用了包括在每个天线阵列中的多个天线元件的mmWave天线阵列的特征，以通过在mmWave发射机和接收机之间建立多个波束形成的通信链路来实现MIMO方案。 输出信号被分成多个信号元件以对应于多个波束形成的链路，并且多个信号元素中的每一个由发射机跨越多个波束形成的链路中的不同的一个发射，以在接收机处重新组合。 并入天线元件分配方案，以将发送和接收的每个天线元件的特定数量和配置分配给多个波束形成的通信链路中的每一个。

公开(公告)号：US20150245251A1

公开(公告)日：2015-08-27

申请号：US13996639

申请日：2011-12-15

申请人： Vallabhajosyula Z. Somayazulu ,  Carlos Cordeiro ,  Guoqing Li ,  Bahareh Bahar Sadeghi ,  Ali S. Sadri

发明人： Vallabhajosyula Z. Somayazulu ,  Carlos Cordeiro ,  Guoqing Li ,  Bahareh Bahar Sadeghi ,  Ali S. Sadri

IPC分类号： H04W28/18 ,  H04W72/08 ,  H04W16/28

CPC分类号： H04W36/32 ,  H04B7/0617 ,  H04W16/28 ,  H04W28/18 ,  H04W72/08 ,  H04W84/12 ,  H04W88/06

摘要： A system and method are provided for intelligently incorporating a mmWave communication link in a heterogeneous cellular/Wi-Fi networking environment. The combination improves overall data transmission capacity of the heterogeneous networking environment, and also provides superior user Quality of Experience. The combination of the mmWave communication link with the cellular/Wi-Fi communication system is integrated in a synergistic manner that allows each of the individual communication technologies to complement the other. Using highly-directional beamforming antennas the mmWave communication link provides wide area network coverage by deploying a plurality of directional beams in sectors to complement the coverage area of the wide area network systems operating in other frequency bands.

摘要翻译： 提供了一种用于在异构蜂窝/ Wi-Fi网络环境中智能地并入mmWave通信链路的系统和方法。 该组合提高了异构网络环境的总体数据传输能力，并提供了优越的用户体验质量。 毫米波通信链路与蜂窝/ Wi-Fi通信系统的组合以协同的方式被集成，允许各个通信技术互补。 使用高度方向波束成形天线，mmWave通信链路通过在扇区中部署多个定向波束来补充广域网覆盖，以补充在其它频带中工作的广域网系统的覆盖区域。

公开(公告)号：US20140206368A1

公开(公告)日：2014-07-24

申请号：US13865625

申请日：2013-04-18

申请人： Alexander Maltsev ,  Ali S. Sadri ,  Vadim Sergeyev ,  Artyom Lomayev

发明人： Alexander Maltsev ,  Ali S. Sadri ,  Vadim Sergeyev ,  Artyom Lomayev

IPC分类号： H04W72/04

CPC分类号： H04W72/0406 ,  H04W84/045 ,  H04W88/06 ,  H04W92/20

摘要： Some demonstrative embodiments include apparatuses, systems and/or methods of wireless backhaul communication between wireless communication nodes. For example, a wireless communication controller may control a wireless communication node to communicate with one or more other wireless communication nodes via one or more backhaul links of a backhaul network over a first frequency band, and to communicate with a control station via a control link over a second frequency band, the first frequency band is higher than the second frequency band.

摘要翻译： 一些演示实施例包括无线通信节点之间的无线回程通信的装置，系统和/或方法。 例如，无线通信控制器可以控制无线通信节点经由第一频带的回程网络的一个或多个回程链路与一个或多个其他无线通信节点进行通信，并且经由控制链路与控制站通信 在第二频带上，第一频带高于第二频带。

公开(公告)号：US20140204902A1

公开(公告)日：2014-07-24

申请号：US13869575

申请日：2013-04-24

申请人： Alexander Maltsev ,  Ali S. Sadri ,  Vadim Sergeyev

发明人： Alexander Maltsev ,  Ali S. Sadri ,  Vadim Sergeyev

IPC分类号： H04W36/24

CPC分类号： H04W36/0083

摘要： Some demonstrative embodiments include devices, systems and/or methods of handover of a wireless beamformed link. For example, an apparatus may include a wireless communication unit to communicate between a wireless communication node and a mobile device via a beamformed link between the wireless communication node and the mobile device, the wireless communication unit is to determine a handover candidate for handing over the mobile device, based on at least one beamforming parameter of the beamformed link.

摘要翻译： 一些演示实施例包括无线波束形成链路的切换的设备，系统和/或方法。 例如，设备可以包括无线通信单元，用于经由无线通信节点和移动设备之间的波束形成的链路在无线通信节点和移动设备之间进行通信，无线通信单元将确定切换候选， 移动设备，基于波束形成链路的至少一个波束成形参数。

公开(公告)号：US08396147B2

公开(公告)日：2013-03-12

申请号：US12757117

申请日：2010-04-09

申请人： John S. Sadowsky ,  Minnie Ho ,  Eric A. Jacobsen ,  Alexander A. Maltsev ,  Ali S. Sadri ,  Sumeet Sandhu

发明人： John S. Sadowsky ,  Minnie Ho ,  Eric A. Jacobsen ,  Alexander A. Maltsev ,  Ali S. Sadri ,  Sumeet Sandhu

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04W16/28 ,  H04B7/0408 ,  H04L27/2602 ,  H04W74/02

摘要： A MIMO transmitter and method for transmitting a group of sequential OFDM symbols on a downlink channel using a plurality of antennas is disclosed herein. Groups of OFDM subcarriers are individually modulated in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers, corresponding symbol-modulated subcarriers are combined for transmission on each of a plurality of spatial channels, and beamforming is performed on the combined symbol-modulated subcarriers for transmission over the spatial channels. The channel comprises a plurality of the groups of the OFDM subcarriers and the OFDM subcarriers within each group of subcarriers and within each group of sequential OFDM symbols have the same spatial-frequency subcarrier modulation assignments. The spatial-frequency subcarrier modulation assignments for each group are determined based on feedback by a receiver, which is determined from spatial channel characteristics of the spatial channels.

摘要翻译： 这里公开了一种用于使用多个天线在下行链路信道上发送一组顺序OFDM符号的MIMO发射器和方法。 根据空间 - 频率副载波调制分配对OFDM子载波组进行单独调制，以生成符号调制子载波组，将多个空间信道中的每一个组合对应的符号调制副载波进行传输，并对组合 用于在空间信道上传输的符号调制副载波。 信道包括多个OFDM子载波组和每个子载波组内的OFDM子载波，并且在每组顺序OFDM符号内具有相同的空间频率副载波调制分配。 基于由空间信道的空间信道特性确定的接收机的反馈来确定每个组的空间频率副载波调制分配。

公开(公告)号：US20120250778A1

公开(公告)日：2012-10-04

申请号：US13494233

申请日：2012-06-12

申请人： Alexander A. Maltsev ,  Ali S. Sadri ,  Alexei V. Davydov

发明人： Alexander A. Maltsev ,  Ali S. Sadri ,  Alexei V. Davydov

IPC分类号： H04W52/20

CPC分类号： H04L5/0046 ,  H04L5/0007 ,  H04L5/006

摘要： Briefly, in accordance with one embodiment of the invention, bit and power loading may be utilized to select a modulation rate and subcarrier power scaling based on channel state information. As a result, a higher data rate may be utilized for a given signal-to-noise ratio while maintaining a constant bit error rate.

摘要翻译： 简而言之，根据本发明的一个实施例，可以利用比特和功率负载来选择基于信道状态信息的调制速率和子载波功率缩放。 结果，在保持恒定误码率的同时，可以对给定的信噪比利用更高的数据速率。

公开(公告)号：US20100195485A1

公开(公告)日：2010-08-05

申请号：US12649058

申请日：2009-12-29

申请人： Ali S. Sadri ,  Alexander A. Maltsev ,  Valery V. Cherepennikov

发明人： Ali S. Sadri ,  Alexander A. Maltsev ,  Valery V. Cherepennikov

IPC分类号： H04J11/00 ,  H04W72/04

CPC分类号： H04B7/0626 ,  H04B7/0636 ,  H04L25/0202 ,  H04L27/2601

摘要： Briefly, in accordance with one embodiment of the invention, a channel state information packet is encoded by a receiver side device and is fed back to the transmitter side device. The transmitter side device decodes the channel state information packet to extract an estimate of the channel response function.

摘要翻译： 简而言之，根据本发明的一个实施例，信道状态信息分组由接收机侧设备编码，并被反馈到发射机侧设备。 发射机侧设备对信道状态信息分组进行解码以提取信道响应函数的估计。

公开(公告)号：US20090257454A1

公开(公告)日：2009-10-15

申请号：US12492466

申请日：2009-06-26

申请人： Alexander Maltsev ,  Ali S. Sadri ,  Alexei V. Davydov

发明人： Alexander Maltsev ,  Ali S. Sadri ,  Alexei V. Davydov

IPC分类号： H04J1/00 ,  H04L27/28

CPC分类号： H04L1/0071 ,  H04L1/0042 ,  H04L27/2608 ,  H04L27/2628

摘要： A multi-antenna transmitter includes an adaptive bit interleaver for orthogonal frequency division multiplexed (OFDM) communications. The adaptive bit interleaver permutes a variable number of coded bits per OFDM symbol (Ncbps). The variable number of coded bits is calculated based on individual subcarrier modulation assignments for orthogonal subcarriers. The interleaver matrix size may be based on the variable number of coded bits per OFDM symbol and the number of subchannels. The interleaver may add padding bits to the interleaver matrix to fill any remaining positions, and after performing an interleaving operation, the interleaver may prune the padding bits to provide a sequence of interleaved bits for subsequent modulation on the orthogonal subcarriers and transmission by more than one antenna. The transmitter may transmit the OFDM symbol in accordance with an IEEE 802.16 standard.

摘要翻译： 多天线发射机包括用于正交频分复用（OFDM）通信的自适应比特交织器。 自适应比特交织器将每个OFDM符号的可变数量的编码比特（Ncbps）置换。 基于正交子载波的各个子载波调制分配来计算编码比特的可变数目。 交织器矩阵大小可以基于每OFDM符号的可变数量的编码比特和子信道的数量。 交织器可以向交织器矩阵添加填充比特以填充任何剩余的位置，并且在执行交织操作之后，交织器可以修剪填充比特以提供用于在正交子载波上进行后续调制的多个交织比特序列，并且多于一个 天线。 发射机可以根据IEEE 802.16标准发射OFDM符号。

公开(公告)号：US07460876B2

公开(公告)日：2008-12-02

申请号：US10330675

申请日：2002-12-30

申请人： Ali S. Sadri ,  Alexander A. Maltsev ,  Alexey E. Rubtsov ,  Vadim S. Sergeyev

发明人： Ali S. Sadri ,  Alexander A. Maltsev ,  Alexey E. Rubtsov ,  Vadim S. Sergeyev

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/42 ,  H04B7/0615 ,  H04L27/2601 ,  H04W52/24

摘要： Briefly, an adaptive transmitted power control scheme, which may be used in stations of a communication system, for example, a wireless communication system. The scheme may allocate transmission power to a communication station based on multiplying each of at least one transmitted subcarrier complex number by a corresponding subcarrier weight. Additionally, a detection scheme may detect whether a transmitted power control scheme according to an embodiment of the invention is used by stations of the communication system. The allocation of transmission power may be also used to transmit additional service information through channels.

摘要翻译： 简而言之，可以在通信系统的站中使用的自适应发射功率控制方案，例如无线通信系统。 该方案可以基于将至少一个发送的子载波复数中的每一个乘以相应的子载波权重来向通信站分配发送功率。 此外，检测方案可以检测根据本发明的实施例的发射功率控制方案是否由通信系统的站使用。 传输功率的分配也可用于通过信道传输附加业务信息。

公开(公告)号：US07394873B2

公开(公告)日：2008-07-01

申请号：US10379650

申请日：2003-03-05

申请人： Alexander A. Maltsev ,  Andrey V. Pudeyev ,  Ali S. Sadri

发明人： Alexander A. Maltsev ,  Andrey V. Pudeyev ,  Ali S. Sadri

IPC分类号： H04L27/00

CPC分类号： H04L25/0216 ,  H04L25/0218 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/025 ,  H04L27/2647

摘要： Briefly, in accordance with one embodiment of the invention, a channel estimator may be adapted to provide a channel estimate based at least in part on an estimated delay spread. The channel estimator may be adapted to provide a more accurate channel estimation in the event of a lower estimated delay spread. In one embodiment, the channel estimator provides a frequency domain channel estimate, and in another embodiment the channel estimator provides a time domain channel estimate.

摘要翻译： 简而言之，根据本发明的一个实施例，信道估计器可以适于至少部分地基于估计的延迟扩展来提供信道估计。 信道估计器可以适于在估计延迟扩展较低的情况下提供更准确的信道估计。 在一个实施例中，信道估计器提供频域信道估计，并且在另一实施例中，信道估计器提供时域信道估计。