公开(公告)号：JP2008011517A

公开(公告)日：2008-01-17

申请号：JP2007140109

申请日：2007-05-28

Applicant: Motorola Inc ,  モトローラ・インコーポレイテッドMotorola Incorporated

Inventor： SIMOENS SEBASTIEN

IPC: H04B7/26

CPC classification number: H04B7/15542

Abstract: PROBLEM TO BE SOLVED: To provide a communication system using relay of communication signals which can attain high flexibility, low complexity, easy packaging and high processing capacity.
SOLUTION: In the communication system, a first communication unit includes a receiving front end 201 which generates a time domain signal sample group of the signal received from a signal source communication unit. A noise processor 205 generates a noise indication of the sample group and a quantization level processor determines a quantization level so that a noise contribution formed by the quantization related to the noise indication can satisfy a criterion. The quantization processor generates a quantized signal sample group by quantizing the sample group using the quantization level group. A transmission unit transmits the quantized signal sample group to a second communication unit having a receiver for receiving the signal sample group. A receiving front end of the second communication unit generates a received signal sample group of the signal from the communication unit of the communication source, and a multi input multi output (MIMO) receiving processor receives multiple input and multiple output, that is, MIMO of the signal.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种使用可以实现高灵活性，低复杂度，容易包装和高处理能力的通信信号中继器的通信系统。 解决方案：在通信系统中，第一通信单元包括接收前端201，其生成从信号源通信单元接收的信号的时域信号采样组。 噪声处理器205产生采样组的噪声指示，并且量化级处理器确定量化电平，使得由与噪声指示相关的量化形成的噪声贡献可以满足标准。 量化处理器通过使用量化级别组量化采样组来生成量化信号采样组。 传输单元将量化信号样本组发送到具有用于接收信号样本组的接收机的第二通信单元。 第二通信单元的接收前端生成来自通信源的通信单元的信号的接收信号样本组，多输入多输出（MIMO）接收处理器接收多输入多输出，即MIMO 信号。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2000244448A

公开(公告)日：2000-09-08

申请号：JP2000035081

申请日：2000-02-14

Applicant: MOTOROLA INC

Inventor： DE COURVILLE MARC ,  SIMOENS SEBASTIEN ,  BUZENAC SETTINERI VERONIQUE

IPC: H04J11/00 ,  H04L7/00 ,  H04L27/26

Abstract: PROBLEM TO BE SOLVED: To provide a device by which carrier/clock frequency offsets can jointly and blindly be estimated on a channel by estimating items related to the carrier frequency offset and the sampling frequency offset by means of a specified joint maximum likelihood estimate. SOLUTION: This device is provided with a local oscillator, a demodulator, a first modulator, a second module and a third module. The first modulator removes the parasitic effect of a channel on a symbol R(k) and generates at least one block Y(k) of a component Ym(k). The second module removes a modulation effect from Y(k), generates at least a modulation effect from Y(k), generates at least one block Z(k) of a component Zm(k) and calculates V of a component Vm. It is set to be Vm=/Ym/. The third module estimates an item A and an item B, which are related to a carrier frequency offset /fc-fb/ and the sampling frequency offset /ft-fr/ by performing a joint maximum likelihood estimate by an expression.

公开(公告)号：DE69942222D1

公开(公告)日：2010-05-20

申请号：DE69942222

申请日：1999-02-11

Applicant: MOTOROLA INC

Inventor： DE COURVILLE MARC ,  SIMOENS SEBASTIEN ,  BUZENAC SETTINERI VERONIQUE

IPC: H04J11/00 ,  H04L27/26 ,  H04L7/00

Abstract: Apparatus for estimating carrier and clock frequency offsets in OFDM systems employs a maximun likelihood estimator operation on the demodulated signals. The invention has the benefit of low complexity and obviates the need for any requirement for a dedicated training channel.

公开(公告)号：AT465562T

公开(公告)日：2010-05-15

申请号：AT07761318

申请日：2007-04-26

Applicant: MOTOROLA INC

Inventor： SIMOENS SEBASTIEN

IPC: H04B7/155

Abstract: A wireless relay unit (105) comprises a receive front end (201, 203) generating time domain signal samples for a signal received from a source communication unit (101). A noise processor (205) generates a noise indication for the samples and a quantisation level processor (207) determines quantisation levels such that a noise contribution resulting from quantising relative to the noise indication meets a criterion. A quantisation processor (209) generates quantised signal samples by quantising the samples using the quantisation levels, which are then transmitted (211) to a mobile user unit (103). A receive front end (301, 303, 305, 309) of the mobile user unit (103) generates receive signal samples for the signal from the source communication unit (101) and a MIMO receive processor (311) performs a Multiple In Multiple Out, MIMO, reception of the signal using these samples and the quantised signal samples from the relay unit (105). By combining signals directly from a source unit with those passed through a relay unit, reception quality is improved.

公开(公告)号：GB2454657B

公开(公告)日：2010-02-10

申请号：GB0722042

申请日：2007-11-09

Applicant: MOTOROLA INC

Inventor： SIMOENS SEBASTIEN

IPC: H04W88/00 ,  H04B7/155 ,  H04W88/04

公开(公告)号：CA2298722A1

公开(公告)日：2000-08-11

申请号：CA2298722

申请日：2000-02-11

Applicant: MOTOROLA INC

Inventor： SIMOENS SEBASTIEN ,  DE COURVILLE MARC ,  BUZENAC SETTINERI VERONIQUE

IPC: H04J11/00 ,  H04L7/00 ,  H04L27/26 ,  H04J1/16

Abstract: Apparatus for estimating carrier and clock frequency offsets in OFDM systems employs a maximun likelihood estimator operation on the demodulated signals. The invention has the benefit of low complexity and obviates the need for any requirement for a dedicated training channel.

公开(公告)号：WO2007040906A3

公开(公告)日：2009-05-07

申请号：PCT/US2006034950

申请日：2006-09-07

Applicant: MOTOROLA INC ,  SARTORI PHILIPPE J ,  BLANKENSHIP YUFEI W ,  CLASSON BRIAN K ,  SIMOENS SEBASTIEN

Inventor： SARTORI PHILIPPE J ,  BLANKENSHIP YUFEI W ,  CLASSON BRIAN K ,  SIMOENS SEBASTIEN

CPC classification number: H04L1/0028 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L27/2608

Abstract: A method and system for link adaptation between a wireless multi-carrier access point (102) and a wireless multi-carrier communication device (104) is described. The wireless multi-carrier access point obtains a set of available LEP methods from the wireless multi-carrier communication device. The wireless multi-carrier access point selects an LEP method from the set of available LEP methods, based on at least one link parameter. The wireless multi-carrier access point then communicates the LEP method selected, to the wireless multi-carrier communication device. The selected LEP method is used during the transmission of information between the wireless multi-carrier access point and the wireless multi-carrier communication device.

Abstract translation: 描述了一种用于无线多载波接入点（102）和无线多载波通信设备（104）之间的链路自适应的方法和系统。 无线多载波接入点从无线多载波通信设备获得一组可用的LEP方法。 无线多载波接入点基于至少一个链路参数从可用的LEP方法的集合中选择LEP方法。 无线多载波接入点然后将所选择的LEP方法传送到无线多载波通信设备。 在无线多载波接入点和无线多载波通信设备之间的信息传输期间使用所选择的LEP方法。

公开(公告)号：WO2009064562A2

公开(公告)日：2009-05-22

申请号：PCT/US2008079700

申请日：2008-10-13

Applicant: MOTOROLA INC ,  SIMOENS SEBASTIEN

Inventor： SIMOENS SEBASTIEN

IPC: H04L12/28 ,  H04B7/15

CPC classification number: H04B7/15592 ,  H04W16/26 ,  H04W28/22 ,  H04W84/047 ,  H04W88/08

Abstract: An apparatus (201) comprises a quantizer (211) receiving first signals received by a first antenna array (209) from a plurality of remote stations (203). A first relay station (205) receives second signals from the remote stations (203) at a second antenna array (215) and performs a data reduction processing before forwarding the data to the apparatus (201). A spatial processor (401) performs a spatial separation joint processing of a combined set of signals comprising the first signals and the second signals to generate received data streams for a set of remote stations (203) of the plurality of remote stations (203). The processing provides a spatial separation for the received data streams from the set of remote stations (203) and is performed in response to a data rate parameter indicative of the data rate reduction processing performed at the first relay (205). The data rate reduction may include quantization and compression. Improved performance can be achieved by the combination of relaying and spatial separation.

Abstract translation: 一种设备（201）包括量化器（211），该量化器接收来自多个远程站（203）的第一天线阵列（209）接收的第一信号。 第一中继站（205）在第二天线阵列（215）处从远程站（203）接收第二信号，并在将数据转发到设备（201）之前执行数据简化处理。 空间处理器（401）对包括第一信号和第二信号的组合信号集合执行空间分离联合处理，以生成用于多个远程站（203）的一组远程站（203）的接收数据流。 该处理为从该组远程站（203）接收到的数据流提供空间分离，并且响应于指示在第一中继站（205）处执行的数据速率降低处理的数据速率参数而被执行。 数据速率降低可能包括量化和压缩。 中继和空间分离相结合可以提高性能。

公开(公告)号：DE602007006018D1

公开(公告)日：2010-06-02

申请号：DE602007006018

申请日：2007-04-26

Applicant: MOTOROLA INC

Inventor： SIMOENS SEBASTIEN

IPC: H04B7/155

Abstract: A wireless relay unit (105) comprises a receive front end (201, 203) generating time domain signal samples for a signal received from a source communication unit (101). A noise processor (205) generates a noise indication for the samples and a quantisation level processor (207) determines quantisation levels such that a noise contribution resulting from quantising relative to the noise indication meets a criterion. A quantisation processor (209) generates quantised signal samples by quantising the samples using the quantisation levels, which are then transmitted (211) to a mobile user unit (103). A receive front end (301, 303, 305, 309) of the mobile user unit (103) generates receive signal samples for the signal from the source communication unit (101) and a MIMO receive processor (311) performs a Multiple In Multiple Out, MIMO, reception of the signal using these samples and the quantised signal samples from the relay unit (105). By combining signals directly from a source unit with those passed through a relay unit, reception quality is improved.

公开(公告)号：AR061675A1

公开(公告)日：2008-09-10

申请号：ARP070102867

申请日：2007-06-27

Applicant: MOTOROLA INC

Inventor： SIMOENS SEBASTIEN

IPC: H04B7/005

Abstract: Un sistema de comunicaciones emplea retransmision de senales de comunicacion. Una primera unidad de comunicaciones (105) comprende un extremo frontal de recepcion (201, 203) que genera las muestras de senal del dominio de tiempo de una senal recibida de una unidad de comunicaciones fuente (101). Un procesador de ruido (205) genera una indicacion de ruido correspondiente a las muestras y un procesador de nivel de cuantificacion (207) determina los niveles de cuantificacion de manera que un primer aporte de ruido resultante de los niveles de cuantificacion relativos a la indicacion de ruido cumpla con un criterio. Un procesador de cuantificacion (209) genera muestras de senal cuantificadas cuantificando las muestras usando los niveles de cuantificacion. Una unidad de transmision (211) transmite las muestras de senal cuantificadas a una segunda unidad de comunicaciones (103) que comprende un receptor (309) para recibirlas. Un extremo frontal de recepcion (301, 303, 305, 309) de la segunda unidad de comunicaciones (103) genera muestras de senal de recepcion correspondientes a la senal de la unidad de comunicaciones fuente (101) y un procesador de recepcion MIMO (311) realiza una recepcion de multiples entradas multiples salidas, MIMO, de la senal usando estas muestras y las muestras de senal cuantificadas de la primera unidad de comunicaciones (105).