公开(公告)号：WO1996027961A1

公开(公告)日：1996-09-12

申请号：PCT/US1996000189

申请日：1996-01-11

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  STEWART, Kenneth, A.

IPC: H04K01/00

CPC classification number: H04B1/707

Abstract: A method and apparatus is provided for generating a decision value (809) for use in signal acquisition and channel estimation. In a first embodiment a receiver (850) is provided including at least two spatially diverse antennas (600, 601) which can receive different, e.g. consecutive, segments of the same signal, a signal characteristic (e.g., energy) determination stage (840) for processing the different segments to determine the separate energy values for the segments, and an accumulator (808) for accumulating the energy values so as to form the decision value or statistic (809). Additional embodiments are also provided.

Abstract translation: 提供一种用于产生用于信号采集和信道估计的判定值（809）的方法和装置。 在第一实施例中，提供接收机（850），其包括至少两个空间不同的天线（600,601），其可以接收不同的，例如。 连续的相同信号的段，用于处理不同段以确定段的单独能量值的信号特性（例如，能量）确定级（840）以及用于累积能量值的累加器（808），以便 形成决策价值或统计量（809）。 还提供了另外的实施例。

公开(公告)号：EP2062409A2

公开(公告)日：2009-05-27

申请号：EP07813194.3

申请日：2007-07-23

Applicant: Motorola, Inc.

Inventor： KUCHIBHOTLA, Ravi ,  CLASSON, Brian, K. ,  LOVE, Robert, T. ,  NORY, Ravikiran ,  SARTORI, Philippe, J. ,  STEWART, Kenneth, A. ,  SUN, Yakun ,  TALUKDAR, Anup, K.

IPC: H04L27/26 ,  H04B7/26

CPC classification number: H04W72/0406 ,  H04B7/2615 ,  H04L27/2608

Abstract: A method in a wireless communication terminal (103) including receiving a plurality of sub-frames having time-frequency resource elements and resource allocation fields associated with a corresponding sub-frame, wherein the resource allocation fields indicate a resource assignment. In another embodiment, terminal receives a radio frame comprising a plurality of sub-frames and a frequency diverse allocation field indicating frequency diverse resource allocations in multiple sub-frames of the radio frame.

公开(公告)号：EP1900164A2

公开(公告)日：2008-03-19

申请号：EP06771182.0

申请日：2006-05-25

Applicant: Motorola, Inc.

Inventor： BACHU, Raja, S. ,  BUCKLEY, Michael, E. ,  STEWART, Kenneth, A. ,  WILKINS, Clint, S.

IPC: H04L25/02 ,  H04B1/707 ,  H04L25/06 ,  H04L25/03

CPC classification number: H04L25/067 ,  H04B1/7117 ,  H04B1/712 ,  H04L25/0224 ,  H04L25/03197

Abstract: A method and apparatus for communications channel symbol recovery that improves equalizer performance adds together the log-likelihood ratios (LLRs) of different decision delays rather than using LLRs corresponding only to a single decision delay. A low complexity method comprises, determining an initial coarse delay and a set of fine delays (1003), estimating a training sequence and filter taps set for each fine delay (1007), determining an error function for each fine delay (1009), and linearly combining the filter taps (1013) for determining the symbol estimates (1017).

公开(公告)号：EP0827675A1

公开(公告)日：1998-03-11

申请号：EP97903749.0

申请日：1997-01-03

Applicant: MOTOROLA, INC.

Inventor： LOVE, Robert, T. ,  STEWART, Kenneth, A. ,  BAYER, William, R.

IPC: H04J13 ,  H04B7 ,  H04L1 ,  H04W52

CPC classification number: H04W52/362 ,  H04L1/20 ,  H04W52/12 ,  H04W52/26 ,  H04W52/267 ,  H04W52/40

Abstract: Power control in a spread-spectrum communication system takes place by dynamically adjusting the step-down size of a power control threshold (407-415) based on an acquired number of poor-quality frames (405). The step-down size of the threshold is increased or decreased depending on an amount of frame erasures detected by the system (407-415). Additionally, full-rate or sub-rate frame quality is used to dynamically adjust the step-down size of a power control threshold.

公开(公告)号：EP0767995A1

公开(公告)日：1997-04-16

申请号：EP96910292.0

申请日：1996-01-11

Applicant: MOTOROLA, INC.

Inventor： STEWART, Kenneth, A.

IPC: H04B1 ,  H04B7 ,  H04Q7

CPC classification number: H04B1/707

Abstract: A method and apparatus is provided for generating a decision value (809) for use in signal acquisition and channel estimation. In a first embodiment a receiver (850) is provided including at least two spatially diverse antennas (600, 601) which can receive different, e.g. consecutive, segments of the same signal, a signal characteristic (e.g., energy) determination stage (840) for processing the different segments to determine the separate energy values for the segments, and an accumulator (808) for accumulating the energy values so as to form the decision value or statistic (809). Additional embodiments are also provided.

公开(公告)号：WO2008024631A2

公开(公告)日：2008-02-28

申请号：PCT/US2007/075586

申请日：2007-08-09

Applicant: MOTOROLA INC. ,  BACHU, Raja, S. ,  BUCKLEY, Michael, E. ,  KUCHIBHOTLA, Ravi ,  LOVE, Robert, T. ,  STEWART, Kenneth, A. ,  ZHANG, Jianzhong

Inventor： BACHU, Raja, S. ,  BUCKLEY, Michael, E. ,  KUCHIBHOTLA, Ravi ,  LOVE, Robert, T. ,  STEWART, Kenneth, A. ,  ZHANG, Jianzhong

IPC: H04W72/12

CPC classification number: H04W72/1289 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1887 ,  H04W72/121

Abstract: A base station (103) assigns a set of mobile stations (101) to a group wherein the group will share a set of radio resources (770). A control field (1103) may be sent with a payload field (1105) wherein the control field (1103) and payload field (1105) are sent using a single Orthogonal Variable Spreading Factor or a single Walsh Code (1101) wherein various modulation and coding schemes may be applied to the control field (1103) and payload field (1105) such that different modulation and coding schemes may be used within the single channel. HARQ is handled by sending a single retransmission if a NACK message is received or no ACK/NACK message is received at all.

Abstract translation: 基站（103）将一组移动台（101）分配给组，其中该组将共享一组无线电资源（770）。 控制字段（1103）可与有效载荷字段（1105）一起发送，其中控制字段（1103）和有效载荷字段（1105）使用单个正交可变扩频因子或单个沃尔什码（1101）来发送，其中各种调制和 编码方案可以被应用于控制字段（1103）和有效载荷字段（1105），使得可以在单个信道内使用不同的调制和编码方案。 如果接收到NACK消息或根本没有收到ACK / NACK消息，则通过发送单个重传来处理HARQ。

公开(公告)号：WO2007092693A2

公开(公告)日：2007-08-16

申请号：PCT/US2007/061180

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: H04L5/005 ,  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: 提供了一种用于发送包括在OFDMA信号（818）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）信号的方法和装置，所述同步信道信号具有在 带宽的本地化部分（816）。 同步信道信号能够实现具有低计算负荷的初始采集和小区搜索方法，其通过差分处理同步信道信号（1112）的序列元素和帧边界检测和小区特定信息检测（提供OFDMA符号定时检测和频率误差检测） 1114）在支持多个系统带宽（同步和非同步系统）的OFDMA系统中，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。

公开(公告)号：WO2007001703A3

公开(公告)日：2007-01-04

申请号：PCT/US2006/020259

申请日：2006-05-25

Applicant: MOTOROLA INC. ,  BACHU, Raja, S. ,  BUCKLEY, Michael, E. ,  STEWART, Kenneth, A. ,  WILKINS, Clint, S.

Inventor： BACHU, Raja, S. ,  BUCKLEY, Michael, E. ,  STEWART, Kenneth, A. ,  WILKINS, Clint, S.

IPC: H04L25/02 ,  H04B1/707 ,  H04L25/06 ,  H04L25/03

Abstract: A method and apparatus for communications channel symbol recovery that improves equalizer performance adds together the log-likelihood ratios (LLRs) of different decision delays rather than using LLRs corresponding only to a single decision delay. A low complexity method comprises, determining an initial coarse delay and a set of fine delays (1003), estimating a training sequence and filter taps set for each fine delay (1007), determining an error function for each fine delay (1009), and linearly combining the filter taps (1013) for determining the symbol estimates (1017).

公开(公告)号：WO2005067492A2

公开(公告)日：2005-07-28

申请号：PCT/US2004/043166

申请日：2004-12-22

Applicant: MOTOROLA INC. ,  PADMAJA, Putcha ,  BURBIDGE, Richard, C. ,  CAI, Zhijun ,  STEWART, Kenneth, A.

Inventor： PADMAJA, Putcha ,  BURBIDGE, Richard, C. ,  CAI, Zhijun ,  STEWART, Kenneth, A.

IPC: H04J1/00 ,  H04W4/06 ,  H04W48/12

CPC classification number: H04W72/005 ,  H04W48/12

Abstract: The present invention provides a method for receiving broadcast data in a system where broadcast data is transmitted on a plurality of frequencies. A user device monitors (302) a first frequency (108) for broadcast data to be transmitted on the first frequency. The device receives on the first frequency a notification of a broadcast data session which is to be sent on a second frequency (114) that is different from the first frequency. The device then determines a configuration associated with the second frequency and in accordance with receiving the broadcast data session and then configures (310) to receive the broadcast data session in accordance with the determined configuration. After receiving the broadcast data session, the device returns to monitoring the first frequency.

Abstract translation: 本发明提供一种用于在广播数据在多个频率上发送的系统中接收广播数据的方法。 用户设备监视（302）第一频率（108）以便在第一频率上发送广播数据。 该设备在第一频率上接收将在不同于第一频率的第二频率（114）上发送的广播数据会话的通知。 该设备然后根据接收广播数据会话确定与第二频率相关联的配置，然后根据确定的配置配置（310）接收广播数据会话。 收到广播数据会话后，设备返回到监视第一个频率。

公开(公告)号：WO2005002111A3

公开(公告)日：2005-01-06

申请号：PCT/US2004/014058

申请日：2004-05-05

Applicant: MOTOROLA INC. ,  LOVE, Robert, T. ,  STEWART, Kenneth, A.

Inventor： LOVE, Robert, T. ,  STEWART, Kenneth, A.

IPC: H04Q7/20

Abstract: A wireless communications device (100) includes a primary radio frequency branch (134) and a diversity branch (136), which is enabled and disabled to balance performance and power consumption. Diversity mode operation of the device is controlled, for example, based on one or more of an estimated channel quality indicator, data reception, data rate, state or mode of the station, estimated signal to noise ratio of a pilot signal, battery power level, distance from a serving cell, among other factors.