公开(公告)号：US20060156087A1

公开(公告)日：2006-07-13

申请号：US11034204

申请日：2005-01-12

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

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

IPC: G01R31/28

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：US20060114816A1

公开(公告)日：2006-06-01

申请号：US10999592

申请日：2004-11-30

Applicant: Alexander Maltsev ,  Andrey Pudeyev ,  Ali Sadri ,  Sumeet Sandhu ,  Sergey Tiraspolsky ,  Alexei Davydov

Inventor： Alexander Maltsev ,  Andrey Pudeyev ,  Ali Sadri ,  Sumeet Sandhu ,  Sergey Tiraspolsky ,  Alexei Davydov

IPC: H04J11/00 ,  H04Q7/00 ,  H04J1/00

CPC classification number: H04L1/0026 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0626 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: In a multiple-input multiple-output (MIMO) multicarrier communication system, a mobile station sends a quantized time-domain representation of the channel transfer function to a base station for use by the base station in generating beamforming coefficients for use in subsequent transmissions to the mobile station. In some embodiments, the quantized time-domain representation of the channel transfer function may be generated from selected most significant rays of an initial estimated sampled channel impulse response. Other embodiments may be described and claimed.

Abstract translation: 在多输入多输出（MIMO）多载波通信系统中，移动台向基站发送信道传递函数的量化时域表示，供基站用于生成波束形成系数以用于后续传输中 移动台。 在一些实施例中，信道传递函数的量化时域表示可以从初始估计采样信道脉冲响应的选定的最高有效射线产生。 可以描述和要求保护其他实施例。

公开(公告)号：US20050287978A1

公开(公告)日：2005-12-29

申请号：US10877943

申请日：2004-06-25

Applicant: Alexander Maltsev ,  Ali Sadri ,  Sergey Tiraspolsky ,  Alexander Flaksman ,  Alexei Davydov

Inventor： Alexander Maltsev ,  Ali Sadri ,  Sergey Tiraspolsky ,  Alexander Flaksman ,  Alexei Davydov

IPC: H04J99/00 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04M11/00

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: 多载波接收机为由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矩阵（V）。 多载波接收机对由从发射站接收的信号产生的接收到的子载波信号应用经校正的接收机波束形成矩阵（U H SUP）。

公开(公告)号：US20050152465A1

公开(公告)日：2005-07-14

申请号：US10815035

申请日：2004-03-30

Applicant: Alexander Maltsev ,  Ali Sadri ,  Alexey Rubtsov ,  Alexei Davydov

Inventor： Alexander Maltsev ,  Ali Sadri ,  Alexey Rubtsov ,  Alexei Davydov

IPC: H04L1/00 ,  H04L27/26 ,  H04K1/10

CPC classification number: H04L5/0046 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/203 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/006 ,  Y02D50/10

Abstract: A data rate is selected for subcarriers of each frequency and spatial channel of a slowly varying frequency selective multicarrier channel to provide uniform bit loading (UBL) for faster link adaptation. Signal to noise ratios (SNRs) for subcarriers of the multicarrier communication channel may be calculated from channel state information and a transmit power level. A throughput may be estimated for the data rates from the SNRs and one of the data rates may be selected based on the estimated throughputs.

Abstract translation: 为慢速变化的频率选择多载波信道的每个频率和空间信道的子载波选择数据速率，以提供用于更快链路适配的均匀比特加载（UBL）。 可以从信道状态信息和发射功率电平计算多载波通信信道的子载波的信噪比（SNR）。 可以根据SNR估计数据速率的吞吐量，并且可以基于估计的吞吐量来选择一个数据速率。