公开(公告)号：FI970963A0

公开(公告)日：1997-03-06

申请号：FI970963

申请日：1997-03-06

Applicant: MOTOROLA INC

Inventor： LABEDZ GERALD PAUL ,  STEWART KENNETH A

IPC: H04J13/00 ,  H04B17/00 ,  H04L25/02 ,  H04L29/08 ,  H04B ,  H04L

Abstract: Communication rate in a variable rate communication system is determined by calculating metrics based upon symbol energy over a traffic channel frame (200) and selecting an optimum rate based upon the calculated metrics. The metrics are calculated by selectively accumulating symbol energy, using adders (405-408) and accumulators (409-412) in response to the presence of power control groups (201) within the traffic channel frame (200), as determined by power control group selector (400).

公开(公告)号：FI960966A

公开(公告)日：1996-03-01

申请号：FI960966

申请日：1996-03-01

Applicant: MOTOROLA INC

Inventor： STEWART KENNETH A ,  LOVE ROBERT T

IPC: H03D3/00 ,  H04B1/26 ,  H04B

Abstract: An efficient apparatus for performing frequency conversion from a final IF frequency to a baseband frequency is described. A counter (401) generates two logical signals G1 (402) and G2 (403) which are passed to an exclusive-OR gate (404) and a multiplexer (406). When a control signal (411) is deasserted, multiplexer (406) passes signal G1 to I1 and signal G2 to I2; when control signal (411) is asserted, multiplexer (406) passes binary signal G1 to I2 (410) and signal G2 to I1 (407). Similarly, multiplexer (405) swaps its input real and imaginary samples when the output of exclusive-OR gate (404) is asserted; otherwise, it performs no operation on its input samples. Signals I1 (407) and I2 (410) are used to control arithmetic inverters (408) and (409) respectively. When the controlling signal for either inverter is asserted, the inverter performs arithmetic inversion, otherwise it performs no operation.

公开(公告)号：FI954623A

公开(公告)日：1995-09-29

申请号：FI954623

申请日：1995-09-29

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  STEWART KENNETH A

IPC: G10L19/00 ,  H04B1/10 ,  H04B7/26 ,  H04L12/56 ,  H04W16/14 ,  H04W28/22 ,  H04W36/18 ,  H04Q ,  H04B

Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.

公开(公告)号：CA2158270A1

公开(公告)日：1995-08-24

申请号：CA2158270

申请日：1995-01-09

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  STEWART KENNETH A

IPC: G10L19/00 ,  H04B1/10 ,  H04B7/26 ,  H04L12/56 ,  H04W16/14 ,  H04W28/22 ,  H04W36/18

Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.

公开(公告)号：CA2153682A1

公开(公告)日：1995-06-08

申请号：CA2153682

申请日：1994-10-25

Applicant: MOTOROLA INC

Inventor： LOVE ROBERT TRISTAN ,  RAPALA BRYAN ,  STEWART KENNETH A

IPC: H04L27/22 ,  H04B1/707 ,  H04L27/227 ,  H04L27/00

Abstract: The present invention provides a downconverter method and apparatus for downconverting a multiphase modulated signal. The downconverter can be implemented in a multi-phase receiver such as a quadrature receiver. An analog-to-digital converter (103) converts an intermediate frequency signal to a digital signal at a sampling rate. A Hilbert transformation filter (104) and a delay element (105) connected in parallel provide respective passband quadrature and in-phase components of the digital signal. A digital translator (107) alters the passband quadrature and in-phase components based on a predetermined pattern to provide a baseband quadrature signal and a baseband in-phase signal. The digital translator (107) can be a pseudorandom sequence demodulator for demodulating a code division multiple access (CDMA) signal. Various types of DC estimation can also be provided in addition to automatic gain control.

公开(公告)号：WO2007087511A4

公开(公告)日：2014-12-04

申请号：PCT/US2007060867

申请日：2007-01-22

Applicant: MOTOROLA INC ,  STEWART KENNETH A ,  BUCKLEY MICHAEL E ,  PEYRUSSE OLIVIER ,  SMOLINSKE JEFFREY C

Inventor： STEWART KENNETH A ,  BUCKLEY MICHAEL E ,  PEYRUSSE OLIVIER ,  SMOLINSKE JEFFREY C

IPC: H04B7/216

CPC classification number: H04L1/0065 ,  H03M13/3769 ,  H04L1/0045 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/08 ,  H04L1/1816 ,  H04L1/1845

Abstract: A method and apparatus for handling a difference between a first and second message prior to decoding is disclosed The signaling scena&pgr;o illustrated by FIG 1 and using the codeword properties defined herein, the vanous embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding to any subsequent observed transmission is different Accordingly, a first set of observations (LLR's) (601 ) may be compared with a second or subsequent set of observations (603), and if the observations are found sufficiently similar, may be further compared in the context of a hypothesized difference (607) in constituent message information words Once any difference in information words is identified, the second or subsequent set of observations may be combined (611) with the first set of observations after suitable arithmetic processing, and prior to further decoding.

Abstract translation: 公开了一种用于在解码之前处理第一和第二消息之间的差异的方法和装置。图1所示的信令场景和使用本文定义的码字属性，该虚拟实施例可以在假设下组合多个消息， 对应于任何后续观察到的传输的消息部分是不同的。因此，可以将第一组观察值（LLR）（601）与第二组或后续观察集（603）进行比较，并且如果发现观察值足够相似，则可以是 在构成消息信息字中的假设差异（607）的上下文中进一步比较。一旦识别出信息字中的任何差异，则可以在适当的算术处理之后将第二组或后续观察组合（611）与第一组观察结合， 并在进一步解码之前。

公开(公告)号：WO2008115614A2

公开(公告)日：2008-09-25

申请号：PCT/US2008051550

申请日：2008-01-21

Applicant: MOTOROLA INC ,  BUCKLEY MICHAEL E ,  CLASSON BRIAN K ,  STEWART KENNETH A

Inventor： BUCKLEY MICHAEL E ,  CLASSON BRIAN K ,  STEWART KENNETH A

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L5/0023 ,  H04L5/0048

Abstract: Various methods and apparatuses provide unicast channel data acquisition, such as antenna information, from MBMS subframes. A method of operating a wireless communications network infrastructure entity is disclosed comprising defining a subframe (400) comprising a unicast symbol (401) in a predetermined first symbol position within said subframe (400), said unicast symbol (401) comprising at least a first unicast antenna reference symbol; defining a second symbol position (403) within said subframe (400) for containing at least a second unicast antenna reference symbol, said second symbol position (403) being a multicast symbol position for transmitting a multicast symbol; and transmitting said subframe (400) wherein said unicast symbol (401) comprises said at least first unicast antenna reference symbol and wherein said multicast symbol (403) comprises said at least second unicast antenna reference symbol.

Abstract translation: 各种方法和装置从MBMS子帧提供诸如天线信息的单播信道数据采集。 公开了一种操作无线通信网络基础结构实体的方法，包括定义包括在所述子帧（400）内的预定第一符号位置的单播符号（401）的子帧（400），所述单播符号（401）包括至少第一 单播天线参考符号; 在所述子帧（400）内定义用于包含至少第二单播天线参考符号的第二符号位置（403），所述第二符号位置（403）是用于发送多播符号的多播符号位置; 以及发送所述子帧（400），其中所述单播符号（401）包括所述至少第一单播天线参考符号，并且其中所述多播符号（403）包括所述至少第二单播天线参考符号。

公开(公告)号：WO2008042513A2

公开(公告)日：2008-04-10

申请号：PCT/US2007076468

申请日：2007-08-22

Applicant: MOTOROLA INC ,  KUCHIBHOTLA RAVI ,  BUCKLEY MICHAEL E ,  CLASSON BRIAN K ,  LOVE ROBERT T ,  NORY RAVIKIRAN ,  STEWART KENNETH A ,  SUN YAKUN

Inventor： KUCHIBHOTLA RAVI ,  BUCKLEY MICHAEL E ,  CLASSON BRIAN K ,  LOVE ROBERT T ,  NORY RAVIKIRAN ,  STEWART KENNETH A ,  SUN YAKUN

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/042

Abstract: A wireless communication device for receiving a frame (200) corresponding to a transmission time interval, the frame having a control channel (210) including at least two control channel elements (212, 214) and an embedded bit sequence, the location of which indicates a portion of the control channel used for radio resource assignment, wherein the portion of the control channel used for radio resource assignment may be less than the entire control channel of the frame having the embedded bit sequence, and wherein the at least two frames may use different portions of the control channel for radio resource assignment.

Abstract translation: 一种无线通信设备，用于接收对应于传输时间间隔的帧（200），所述帧具有包括至少两个控制信道单元（212,214）的控制信道（210）和嵌入的比特序列，其位置指示 所述控制信道的一部分用于无线电资源分配，其中用于无线电资源分配的所述控制信道的所述部分可以小于具有所述嵌入的比特序列的所述帧的整个控制信道，并且其中所述至少两个帧可以使用 控制信道的不同部分用于无线资源分配。

公开(公告)号：WO2007092693A3

公开(公告)日：2007-12-27

申请号：PCT/US2007061180

申请日：2007-01-27

Applicant: MOTOROLA INC ,  AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

Inventor： AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

IPC: H04J11/00

CPC classification number: H04L5/005 ,  H04J11/0073 ,  H04L5/0007 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656

Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection by differential processing of sequence elements of the synchronization channel signal (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

Abstract translation: 提供了用于发送包括在OFDMA信号的带宽的局部部分内发送的同步信道信号的正交频域多址（OFDMA）信号（818）的方法和设备，所述同步信道信号在所述OFDMA信号 带宽的本地化部分（816）。 同步信道信号实现具有低计算负荷的初始捕获和小区搜索方法，其通过对同步信道信号（1112）的序列元素进行差分处理来提供OFDMA码元定时检测和频率误差检测，并且帧边界检测和小区特定信息检测（ 1114）在OFDMA系统中支持多系统带宽，同步和非同步系统，大小区索引和具有短和长循环前缀长度的OFDMA符号结构。

公开(公告)号：WO2007092694A2

公开(公告)日：2007-08-16

申请号：PCT/US2007061181

申请日：2007-01-27

Applicant: MOTOROLA INC ,  AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

Inventor： AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

CPC classification number: H04L5/0007 ,  H04L1/1829 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2655

Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements intereleaved in time and frequency (610, 640). The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry (702, 704) for common sequence elements in OFDMA symbol periods (620, 660) for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

Abstract translation: 提供了一种用于发送包括发送的同步信道信号的正交频域多址（OFDMA）信号的方法和装置，包括在时间和频率上互相嵌合的多个序列元素（610,640）。 同步信道信号序列元件通过为OFDMA符号周期（620,660）中的公共序列元素提供用于OFDMA符号定时检测和频率误差的预定时域对称性（702,704）来实现具有低计算负荷的初始采集和小区搜索方法 支持多系统带宽的同步和非同步系统的OFDMA系统中的检测，具有短循环前缀长度和长循环前缀长度的大小区索引和OFDMA符号结构。