公开(公告)号：US20120026862A1

公开(公告)日：2012-02-02

申请号：US13267134

申请日：2011-10-06

Applicant: Ali S. Sadri ,  Alexander A. Maltsev ,  Sergey E. Sergeyev ,  Alexei V. Davydov ,  Vadim S. Sergeyev

Inventor： Ali S. Sadri ,  Alexander A. Maltsev ,  Sergey E. Sergeyev ,  Alexei V. Davydov ,  Vadim S. Sergeyev

IPC: H04J11/00 ,  H04B1/06

CPC classification number: H04W28/04 ,  H04B7/0857 ,  H04B7/0874 ,  H04L5/0023 ,  H04L27/2608 ,  H04L27/2647 ,  H04W24/00

Abstract: A variable bandwidth OFDM receiver and methods for receiving OFDM signals of different bandwidths are generally disclosed herein. The variable bandwidth OFDM receiver may be configured to receive signals over wider bandwidths by processing a resource block of subcarriers comprising a greater number of subcarriers, and receive signals over narrower bandwidths by processing a resource block of subcarriers comprising a lesser number of subcarriers. The resource blocks have a number of OFDM symbols in a time dimension to define a time slot, and each wherein the resource block comprises a minimum number of subcarriers for a narrowest bandwidth for a predetermined minimum bandwidth reception and a predetermined maximum number of subcarriers for a maximum bandwidth reception. In some embodiments, the variable bandwidth receiver may operate in accordance with an 3GPP LTE E-UTRAN standard.

Abstract translation: 本文一般公开了一种可变带宽OFDM接收机和用于接收不同带宽的OFDM信号的方法。 可变带宽OFDM接收机可以被配置为通过处理包括更多数量的子载波的子载波的资源块，并且通过处理包括较少数量子载波的子载波的资源块，通过较窄带宽接收信号来在较宽带宽上接收信号。 资源块在时间维度上具有多个OFDM符号以定义时隙，并且每个资源块包括用于预定最小带宽接收的最窄带宽的最小数量的子载波和用于一个预定最小带宽接收的预定最大数量的子载波 最大带宽接收。 在一些实施例中，可变带宽接收机可以根据3GPP LTE E-UTRAN标准进行操作。

公开(公告)号：US07822128B2

公开(公告)日：2010-10-26

申请号：US11004720

申请日：2004-12-03

Applicant: Alexander A. Maltsev ,  Alexei V. Davydov ,  Qinghua Li

Inventor： Alexander A. Maltsev ,  Alexei V. Davydov ,  Qinghua Li

IPC: H04K1/10

CPC classification number: H04L27/2637 ,  H04W52/42

Abstract: In a multi-antenna, multicarrier transmitter, a multicarrier communication signal is generated by normalizing beamforming matrices based on an average subcarrier power loading for each of the transmit antennas. One or more spatial streams may be transmitted by two or more antennas.

Abstract translation: 在多天线多载波发射机中，通过基于每个发射天线的平均副载波功率负载归一化波束成形矩阵来生成多载波通信信号。 一个或多个空间流可以由两个或更多个天线发送。

公开(公告)号：US09166741B2

公开(公告)日：2015-10-20

申请号：US13544120

申请日：2012-07-09

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

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

IPC: H04L1/00 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H04L1/0042 ,  H04L27/2608 ,  H04L27/2628

Abstract: A multi-antenna transmitter is configured for orthogonal frequency division multiplexed (OFDM) communications. The multi-antenna transmitter includes circuitry to receive an input bit sequence for code block segmentation including adding filler bits based on a selected code block size, a encoder to encode the bit sequence and an interleaver configurable to perform interleaving operations on blocks of bits of various code block sizes of the bit sequence. A controller is to select the code block size for the interleaver and OFDM transmitter circuitry to transmit OFDM symbols on subcarriers utilizing more than one antenna. The OFDM symbols are generated at least in part from the interleaved blocks.

Abstract translation: 多天线发射机被配置用于正交频分复用（OFDM）通信。 多天线发射机包括用于接收用于码块分段的输入比特序列的电路，包括基于选择的码块大小添加填充比特，对比特序列进行编码的编码器和可配置为对各种比特的块进行交织操作的交织器 比特序列的码块大小。 控制器是选择用于交织器和OFDM发射机电路的码块大小，以利用多于一个天线的子载波上的OFDM符号。 至少部分地从交织块生成OFDM符号。

公开(公告)号：US07644345B2

公开(公告)日：2010-01-05

申请号：US11034204

申请日：2005-01-12

Applicant: Xintian E Lin ,  Qinghua Li ,  Alexei V Davydov ,  Alexander Alexandrovich Maltsev ,  Sumeet Sandhu ,  Ada Shuk Yan Poon

Inventor： Xintian E Lin ,  Qinghua Li ,  Alexei V Davydov ,  Alexander Alexandrovich Maltsev ,  Sumeet Sandhu ,  Ada Shuk Yan Poon

IPC: G06M13/03

CPC classification number: H04L27/2608

Abstract: In a multicarrier transmitter that transmits two or more spatial data streams, a bit distributor assigns encoded bits to the spatial data streams based on bit-loading capabilities of the streams and in a manner to intermix the bits among the spatial streams.

Abstract translation: 在发送两个或多个空间数据流的多载波发射机中，位分配器基于流的比特加载能力并且以混合空间流之间的比特的方式将编码比特分配给空间数据流。

公开(公告)号：US07570953B2

公开(公告)日：2009-08-04

申请号：US10862535

申请日：2004-06-07

Applicant: Alexander A. Maltsev ,  Ali S Sadri ,  Alexey E. Rubtsov ,  Alexei V Davydov ,  Andrey V. Pudeyev

Inventor： Alexander A. Maltsev ,  Ali S Sadri ,  Alexey E. Rubtsov ,  Alexei V Davydov ,  Andrey V. Pudeyev

IPC: H04W72/00

CPC classification number: H04L27/2608 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/0096 ,  H04W52/34 ,  H04W52/42

Abstract: Transmission parameters for a multicarrier communication channel are selected by setting a power level for each subcarrier of an active set of subcarriers, and calculating the channel capacity based on the power levels and effective noise powers. The number of active subcarriers of the set is decreased, the power levels are reset and the channel capacity is recalculated until a final set of active subcarriers result that provide the highest channel capacity.

Abstract translation: 通过设置有效的子载波组的每个子载波的功率电平，并且基于功率电平和有效噪声功率来计算信道容量来选择多载波通信信道的传输参数。 集合中的有效子载波数量减少，功率电平被重置，并且重新计算信道容量，直到有效子载波的最终集合产生提供最高信道容量。

公开(公告)号：US07570696B2

公开(公告)日：2009-08-04

申请号：US10877943

申请日：2004-06-25

Applicant: Alexander A. Maltsev ,  Ali S Sadri ,  Sergey A. Tiraspolsky ,  Alexander Flaksman ,  Alexei V Davydov

Inventor： Alexander A. Maltsev ,  Ali S Sadri ,  Sergey A. Tiraspolsky ,  Alexander Flaksman ,  Alexei V Davydov

IPC: H04L27/28

CPC classification number: H04B7/066 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0641 ,  H04B7/0842 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03783

Abstract: A multicarrier receiver generates a quantized transmit beamformer matrix ({tilde over (V)}) for each subcarrier of a multicarrier communication channel for use by a multicarrier transmitting station. The multicarrier receiver applies a corrected receiver beamformer matrix (ŨH) to received subcarriers signals generated by signals received from the transmitting station.

Abstract translation: 多载波接收机为多载波发射台使用的多载波通信信道的每个子载波生成量化的发射波束形成器矩阵（{tilde over（V）}）。 多载波接收机将经校正的接收机波束形成器矩阵（UH）应用于从从发射台接收的信号产生的接收到的子载波信号。