公开(公告)号：DE112007000132T5

公开(公告)日：2009-05-07

申请号：DE112007000132

申请日：2007-01-05

Applicant: MOTOROLA INC

Inventor： CLASSON BRIAN K ,  KOTZIN MICHAEL D ,  VOOK FREDERICK W

IPC: H04W84/02 ,  H04W16/28 ,  H04W92/12

公开(公告)号：MX2007005420A

公开(公告)日：2007-07-10

申请号：MX2007005420

申请日：2005-10-31

Applicant: MOTOROLA INC

Inventor： BAUM KEVIN L ,  THOMAS TIMOTHY A ,  SARTORI PHILIPPE J ,  VOOK FREDERICK W ,  ZHUANG XIANGYANG

IPC: H04Q7/00 ,  H04J99/00

Abstract: Un metodo para comunicar estimaciones de canal sobre una pluralidad de subportadores entre un dispositivo transmisor y un dispositivo receptor. El dispositivo transmisor determina una estimacion de canal sobre una pluralidad de subportadores y entonces codifica las estimaciones de canal en al menos una forma de onda de canal codificada. Entonces el dispositivo transmisor transmite al menos una forma de onda de canal codificada al dispositivo receptor.

公开(公告)号：CA2548628A1

公开(公告)日：2006-02-23

申请号：CA2548628

申请日：2005-08-03

Applicant: MOTOROLA INC

Inventor： BAUM KEVIN L ,  THOMAS TIMOTHY A ,  ZHUANG XIANGYANG ,  VOOK FREDERICK W

IPC: H04J99/00 ,  H04W72/04

Abstract: In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of th e present invention, a time frequency portion of an uplink frame is dynamicall y reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a ti me- frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel respons e.

公开(公告)号：AU2002366500A1

公开(公告)日：2003-06-30

申请号：AU2002366500

申请日：2002-11-21

Applicant: MOTOROLA INC

Inventor： GOSSE KARINE ,  ZHUANG XIANGYANG ,  ROUQUETTE-LEVEIL STEPHANIE ,  VOOK FREDERICK W

IPC: H04L1/06 ,  H04L27/26

Abstract: The invention provides a method of operating a coded OFDM communication system by interleaving a plurality of encoder output bits; mapping the interleaved bits to a plurality of modulated symbols; and forming a set of OFDM symbols for a plurality of transmit antennas based on the modulated symbols.

公开(公告)号：EP1525698A4

公开(公告)日：2009-06-10

申请号：EP03765470

申请日：2003-06-26

Applicant: MOTOROLA INC

Inventor： THOMAS TIMOTHY A ,  NANGIA VIJAY ,  BAUM KEVIN L ,  VOOK FREDERICK W

IPC: H04L27/26 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04L27/2605 ,  H04L25/0226 ,  H04L25/03006 ,  H04L27/2607 ,  H04L2025/03414 ,  H04L2025/03522

Abstract: A receiver for implementing a training prefix modulation method in response to a reception of a signal propagating through a channel is disclosed. The signal as received includes training blocks (22a, 22b', 22c') with each training block having a data inter-block-interference (25a, 25b) therein, and data blocks (23a', 23b', 23c') with each data block having a training inter-block-interference therein. The signal is selectively reconstructed to provide a circular appearance of the channel over the data blocks. Specifically, an estimate of the training inter-block-interferences is generated and subtracted from the data blocks. And, an estimate of the data inter-block interferences is generated and added to the data blocks.

公开(公告)号：EP1733494A4

公开(公告)日：2009-07-15

申请号：EP05713889

申请日：2005-02-22

Applicant: MOTOROLA INC

Inventor： ZHUANG XIANGYANG ,  BAUM KEVIN L ,  NANGIA VIJAY ,  VOOK FREDERICK W

IPC: H04J11/00 ,  H04B1/69 ,  H04B1/707 ,  H04J13/00 ,  H04L27/26

CPC classification number: H04L27/2613 ,  H04B1/69 ,  H04B2001/6912 ,  H04B2201/70701 ,  H04J13/00 ,  H04J13/16

Abstract: Pilot sequences are constructed from distinct 'classes' of chirp sequences that have an optimal cross correlation property. Utilization of chirp sequences for pilot sequences results in pilot sequences that have optimal or nearly-optimal cross correlation and auto-correlation properties.

公开(公告)号：WO2009114338A3

公开(公告)日：2009-11-26

申请号：PCT/US2009035843

申请日：2009-03-03

Applicant: MOTOROLA INC ,  KLOOS MICHAEL N ,  SPIOTTA MARK G ,  VOOK FREDERICK W

Inventor： KLOOS MICHAEL N ,  SPIOTTA MARK G ,  VOOK FREDERICK W

IPC: H04W72/12 ,  H04L27/26 ,  H04W24/00

CPC classification number: H04L5/0048 ,  H04L25/0224

Abstract: An Orthogonal Frequency Division Multiplexing communication system (200) is provided that schedules a transmission of uplink sounding signals or channel quality feedback signals in sounding intervals (552), or sounding zones (560), that are outside of the sub-frames (510, 520, 530), thereby preserving sub-frame capacity for other overhead and data transmissions.

Abstract translation: 提供了一种正交频分复用通信系统（200），其调度上行探测信号或信道质量反馈信号在发送区间（552）或探测区（560） 520,530），从而为其他开销和数据传输保留子帧容量。

公开(公告)号：WO2008094770B1

公开(公告)日：2008-10-09

申请号：PCT/US2008051281

申请日：2008-01-17

Applicant: MOTOROLA INC ,  HILLERY WILLIAM J ,  KRAUSS THOMAS P ,  MONDAL BISHWARUP ,  THOMAS TIMOTHY A ,  VOOK FREDERICK W

Inventor： HILLERY WILLIAM J ,  KRAUSS THOMAS P ,  MONDAL BISHWARUP ,  THOMAS TIMOTHY A ,  VOOK FREDERICK W

IPC: H04L1/02 ,  H04B7/06 ,  H04B7/26

CPC classification number: H04L5/0007 ,  H04B7/0671

Abstract: A generalized form of cyclic shift diversity is described for use in an OFDM system with multiple transmit antennas. Multiple cyclic shifts are performed for each transmit antenna and the shifted signals are scaled and summed to form a time-domain data stream for each transmit antenna. A cyclic extension is added to each data stream prior to transmission.

Abstract translation: 描述了在具有多个发射天线的OFDM系统中使用的循环移位分集的通用形式。 对于每个发射天线执行多个循环移位，并且移位的信号被缩放和相加以形成每个发射天线的时域数据流。 在传输之前，将循环扩展添加到每个数据流。

公开(公告)号：WO2010053684A4

公开(公告)日：2010-09-30

申请号：PCT/US2009061230

申请日：2009-10-20

Applicant: MOTOROLA INC ,  VOOK FREDERICK W ,  BURIS NICHOLAS E ,  MUELLER BRUCE D

Inventor： VOOK FREDERICK W ,  BURIS NICHOLAS E ,  MUELLER BRUCE D

IPC: H04B17/00 ,  H04B7/04

CPC classification number: H04B17/21

Abstract: A method and a system for calibrating at least one antenna (1,1-1,3. 1,j). At least a first antenna (1,4) within a first antenna array (102) can be selected as a primary reference antenna. At least one antenna (4,3) that is not within the first antenna array can be selected as a secondary reference antenna. At least a first signal propagation characteristic (122) can be measured based on at least one signal wirelessly communicated between the primary reference antenna and the secondary reference antenna. At least a second signal propagation characteristic (118) can be measured based on at least one signal wirelessly communicated between the secondary reference antenna and at least a second antenna (1,2) within the first antenna array. At least a first calibration coefficient can be determined for the second antenna.

公开(公告)号：WO2006052502A3

公开(公告)日：2007-07-26

申请号：PCT/US2005039234

申请日：2005-10-31

Applicant: MOTOROLA INC ,  THOMAS TIMOTHY A ,  BAUM KEVIN L ,  SARTORI PHILIPPE J ,  VOOK FREDERICK W ,  ZHUANG XIANGYANG

Inventor： THOMAS TIMOTHY A ,  BAUM KEVIN L ,  SARTORI PHILIPPE J ,  VOOK FREDERICK W ,  ZHUANG XIANGYANG

IPC: H04L1/02

CPC classification number: H04B7/0669 ,  H04L25/0204 ,  H04L27/2608

Abstract: A method for communicating channel estimates on a plurality of subcarriers between a transmitting device and a receiving device. The transmitting device determines a channel estimates on a plurality of subcarriers and then encodes the channel estimates into at least one encoded channel waveform. Then the transmitting device transmits the at least one encoded channel waveform to the receiving device.

Abstract translation: 一种用于在发射设备和接收设备之间的多个子载波上传送信道估计的方法。 发送设备确定多个子载波上的信道估计，然后将信道估计编码为至少一个编码信道波形。 然后，发送设备将至少一个编码信道波形发送到接收设备。