公开(公告)号：US20080084853A1

公开(公告)日：2008-04-10

申请号：US11538758

申请日：2006-10-04

Applicant: RAVI KUCHIBHOTLA ,  RAJA S. BACHU ,  BRIAN K. CLASSON ,  ROBERT T. LOVE ,  RAVIKIRAN NORY ,  KENNETH A. STEWART ,  YAKUN SUN

Inventor： RAVI KUCHIBHOTLA ,  RAJA S. BACHU ,  BRIAN K. CLASSON ,  ROBERT T. LOVE ,  RAVIKIRAN NORY ,  KENNETH A. STEWART ,  YAKUN SUN

IPC: H04Q7/24

CPC classification number: H04W72/0446 ,  H04W28/06 ,  H04W72/042 ,  H04W72/1273

Abstract: A method in a wireless communication device including receiving (410) a composite control channel including at least two control channel elements, each control channel element only contains radio resource assignment information, for example, a codeword, exclusively addressed to a single wireless communication entity. The device combines (420) at least two of the control channel elements, and decodes (430) the combined control channel elements.

Abstract translation: 一种无线通信设备中的方法，包括接收（410）包括至少两个控制信道单元的复合控制信道，每个控制信道单元仅包含专用于单个无线通信实体的无线资源分配信息，例如码字。 该设备组合（420）至少两个控制信道单元，并解码（430）组合的控制信道单元。

公开(公告)号：US20080072122A1

公开(公告)日：2008-03-20

申请号：US11530211

申请日：2006-09-08

Applicant: Ajit Nimbalker ,  Yufei W. Blankenship ,  Brian K. Classon

Inventor： Ajit Nimbalker ,  Yufei W. Blankenship ,  Brian K. Classon

IPC: H03M13/00

CPC classification number: H03M13/6561 ,  H03M13/114 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/1197 ,  H03M13/2957

Abstract: A method and apparatus for decoding data is provided herein to show how to turbo decode LDPC codes that contain a partial dual diagonal parity-check portion, and how to avoid memory access contentions in such a turbo decoder. During operation, a decoder will receive a signal vector corresponding to information bits and parity bits and separate the received signal vector into two groups, a first group comprising signals corresponding to the information bits and one or more parity bits, a second group comprising a remainder of the parity bits. The first group of received signals is passed to a first decoder and the second group of received signals is passed to a second decoder. The decoders are separated by an interleaver and a deinterleaver. Iterative decoding takes place by passing messages between the decoders, through the interleaver and the deinterleaver, and producing an estimate of the information bits from the output of the first decoder.

Abstract translation: 本文提供了用于解码数据的方法和装置，以示出如何对包含部分双对角奇偶校验部分的LDPC码进行turbo解码，以及如何避免这种turbo解码器中的存储器访问冲突。 在操作期间，解码器将接收对应于信息比特和奇偶校验位的信号矢量，并将接收到的信号矢量分成两组，第一组包括对应于信息比特和一个或多个奇偶校验位的信号，第二组包括余数 的奇偶校验位。 第一组接收信号被传递给第一解码器，第二组接收信号被传递到第二解码器。 解码器由交织器和解交织器分隔开。 迭代解码通过在解码器之间通过交织器和解交织器传递消息，并从第一解码器的输出产生信息比特的估计来进行。

公开(公告)号：US07343548B2

公开(公告)日：2008-03-11

申请号：US11108949

申请日：2005-04-19

Applicant: Yufei W. Blankenship ,  T. Keith Blankenship ,  Brian K. Classon

Inventor： Yufei W. Blankenship ,  T. Keith Blankenship ,  Brian K. Classon

IPC: H03M13/00 ,  G06F11/00

CPC classification number: H03M13/116 ,  H03M13/1137 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188

Abstract: A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb. Base matrix Hb comprises a section Hb1 and a section Hb2. Section Hb2 comprises column hb having weight wh>=3 and H′b2 having a dual-diagonal structure with matrix elements at row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The 1's of hb and Hb1 are arranged such that one or more groups of the rows of Hb can be formed so that the rows of Hb within each group do not intersect. Further more, the rows of base matrix Hb can be permuted such that every two consecutive rows do not intersect.

Abstract translation: 提出了一种结构化奇偶校验矩阵H，其中H是基本矩阵H B b的扩展。 基本矩阵H B b包括部分H b1和部分H b2b。 部分H b2包括具有重量w = 3的第hb个b和具有双重键的H' 对于i行j矩阵元素的对角线结构，对于i = j，列j等于1，i = j + 1为1，其他地方为0。 hB1和H b1的1个被布置成使得可以形成一行或多组H B b的行，使得行 每个组中的H b b不相交。 此外，基矩阵H B b的行可以被置换，使得每两个连续的行不相交。

公开(公告)号：US20080049690A1

公开(公告)日：2008-02-28

申请号：US11466720

申请日：2006-08-23

Applicant: Ravi Kuchibhotla ,  Brian K. Classon ,  Robert T. Love ,  Ravikiran Nory ,  Philippe J. Sartori ,  Kenneth A. Stewart ,  Yakun Sun ,  Anup K. Talukdar

Inventor： Ravi Kuchibhotla ,  Brian K. Classon ,  Robert T. Love ,  Ravikiran Nory ,  Philippe J. Sartori ,  Kenneth A. Stewart ,  Yakun Sun ,  Anup K. Talukdar

IPC: H04Q7/24

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.

Abstract translation: 一种无线通信终端（103）中的方法，包括接收具有时间频率资源元素的多个子帧和与对应子帧相关联的资源分配字段，其中所述资源分配字段指示资源分配。 在另一个实施例中，终端接收包括多个子帧的无线电帧和指示无线电帧的多个子帧中的频率不同资源分配的频率不同分配字段。

公开(公告)号：US07171603B2

公开(公告)日：2007-01-30

申请号：US10839995

申请日：2004-05-06

Applicant: Brian K. Classon ,  Yufei W. Blankenship ,  Vipul A. Desai

Inventor： Brian K. Classon ,  Yufei W. Blankenship ,  Vipul A. Desai

IPC: H03M13/13

CPC classification number: H03M13/6393 ,  H03M13/1148 ,  H03M13/118 ,  H03M13/618 ,  H03M13/6306 ,  H03M13/6362

Abstract: A deterministic structure for controlled distribution of weight-2 columns is proposed for a parity-check matrix H that reduces the occurrence of undetected frame errors and significantly enhances the code performance in comparison to a randomly-constructed parity-check matrix. H comprises a non-deterministic section H1 and a deterministic section H2, and wherein H2 comprises a first part comprising a column h having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i=j, 1 for i=j+1, 0 elsewhere.

Abstract translation: 对于奇偶校验矩阵H，提出了权重2列的受控分布的确定性结构，其减少了未检测到的帧错误的发生，并且与随机构造的奇偶校验矩阵相比显着增强了代码性能。 H包括非确定性部分H 1和确定性部分H 2 H 2，并且其中H 2 H 2包括第一部分，其包含具有 大于2的奇数，以及包括用于行i的矩阵元素的第二部分，对于i = j，列j等于1，对于i = j + 1,0，其他地方为1。

公开(公告)号：US07165205B2

公开(公告)日：2007-01-16

申请号：US10874611

申请日：2004-06-23

Applicant: Yufei Blankenship ,  Brian K. Classon

Inventor： Yufei Blankenship ,  Brian K. Classon

IPC: H03M13/11

CPC classification number: H03M13/618 ,  H03M13/1148 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/1185

Abstract: A method for interlacing columns of different weights is proposed for a parity-check matrix H that results in good performing LDPC codes shortened or unshortened. Matrix H comprises a section H1 and a section H2, and wherein H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlaced between the sub-matrices.

Abstract translation: 对于奇偶校验矩阵H，提出了一种用于交错不同权重的列的方法，其导致良好执行的LDPC码被缩短或不启动。 矩阵H包括H 1区和H 2区，并且其中H 1具有多个不同的列权重，并且包括多个 其中至少一个权重的列在子矩阵之间基本上交错的子矩阵。

公开(公告)号：US07158482B2

公开(公告)日：2007-01-02

申请号：US10068443

申请日：2002-02-06

Applicant: Robert T. Love ,  Robert S. Nikides ,  Louay A. Jalloul ,  Mark C. Cudak ,  Brian K. Classon

Inventor： Robert T. Love ,  Robert S. Nikides ,  Louay A. Jalloul ,  Mark C. Cudak ,  Brian K. Classon

IPC: G06F11/00 ,  H03M13/00 ,  H04L1/00 ,  H04J13/00

CPC classification number: H04W48/16 ,  H04L1/1812 ,  H04L1/1845 ,  H04L12/56 ,  H04W92/10

Abstract: A communication system includes a forward link from a base station to multiple mobile units, the forward link having multiple shared channels (SHCH's), multiple shared control channels (SHCCH's), and multiple dedicated pointer control channels (DPTRCH's), and utilizes HARQ error control for error detection and error correction. The mobile unit, when listening to the DPTRCH, uses a SHCCH pointed to by the DPTRCH to demodulate and decode data on the SHCH. Throughput problems may arise in the system when the mobile unit combines and decodes the wrong SHCH data, that is, SHCH data that is intended for a different mobile unit, or may incorrectly decodes SHCH data that is intended for the mobile unit. In order to improve the data throughput of the system, the systems employs a flush test and an energy detector test to prevent improperly decoded data blocks from corrupting properly decoded data blocks.

Abstract translation: 通信系统包括从基站到多个移动单元的前向链路，具有多个共享信道（SHCH）的前向链路，多个共享控制信道（SHCCH）和多个专用指针控制信道（DPTRCH）），并且利用HARQ错误控制 用于错误检测和纠错。 移动单元在收听DPTRCH时使用由DPTRCH指向的SHCCH对SHCH上的数据进行解调和解码。 当移动单元组合和解码错误的SHCH数据，即针对不同移动单元的SHCH数据，或可能不正确地解码旨在用于移动单元的SHCH数据时，系统中可能出现吞吐量问题。 为了提高系统的数据吞吐量，系统采用冲洗测试和能量检测器测试，以防止不正确解码的数据块破坏正确解码的数据块。

公开(公告)号：US07145862B2

公开(公告)日：2006-12-05

申请号：US10408944

申请日：2003-04-08

Applicant: Mickael D. Batariere ,  Brian K. Classon

Inventor： Mickael D. Batariere ,  Brian K. Classon

IPC: H04J11/00

CPC classification number: H04L25/067 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0078 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/005 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647

Abstract: To address the need for reducing pilot overhead, a method and apparatus for transmitting and receiving data is provided herein. A communication system having a transmitter (100) that utilizes adaptive modulation and coding (AMC) and utilizes lower-order modulated (e.g., QPSK) data as a substitute for pilot symbols during transmission. Data intended for a user utilizing a lower order modulation can be reliably detected, and if properly processed, used as pilots for a user that is trying to receive a higher order modulation (e.g., 64-QAM). Because lower order modulated data is utilized for pilots, fewer overall pilots are used. This greatly reduces pilot overhead, increasing data throughput.

Abstract translation: 为了解决对减少导频开销的需要，本文提供了用于发送和接收数据的方法和装置。 一种通信系统，具有使用自适应调制和编码（AMC）的发射机（100），并且在传输期间利用低阶调制（例如，QPSK）数据作为导频符号的替代。 可以可靠地检测用于利用低阶调制的用户的数据，并且如果被适当地处理，则将其用作试图接收更高阶调制（例如，64-QAM）的用户的导频。 由于低阶调制数据用于飞行员，所以使用较少的总飞行员。 这大大降低了导频开销，增加了数据吞吐量。

公开(公告)号：US08767525B2

公开(公告)日：2014-07-01

申请号：US13183725

申请日：2011-07-15

Applicant: Hidenori Akita ,  Kevin L. Baum ,  Brian K. Classon ,  Massaya Fukuta ,  Hiroshi Hayashi ,  Vijay Nangia ,  Robert T. Love ,  Kenneth A. Stewart

Inventor： Hidenori Akita ,  Kevin L. Baum ,  Brian K. Classon ,  Massaya Fukuta ,  Hiroshi Hayashi ,  Vijay Nangia ,  Robert T. Love ,  Kenneth A. Stewart

IPC: H04J11/00

CPC classification number: H04W48/16 ,  H04J11/0073 ,  H04L5/0007 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/266 ,  H04L27/2663

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, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. 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 and frame boundary detection and cell specific information 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）信号的方法和装置，所述同步信道信号在所述OFDMA信号的局部部分内部具有预定的时域对称性 所述带宽并且包括用于提供至少部分小区识别信息的信息。 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，其在支持多个系统带宽的同步和非同步的OFDMA系统中提供OFDMA符号定时检测和频率误差检测以及帧边界检测和小区特定信息检测 系统，大的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：US08145251B2

公开(公告)日：2012-03-27

申请号：US11337753

申请日：2006-01-23

Applicant: Robert T. Love ,  Brian K. Classon ,  Edgar P. Fernandes ,  Armin W. Klomsdorf ,  Vijay Nangia ,  Ravikiran Nory ,  Dale G. Schwent ,  Kenneth A. Stewart ,  David R. Wilson

Inventor： Robert T. Love ,  Brian K. Classon ,  Edgar P. Fernandes ,  Armin W. Klomsdorf ,  Vijay Nangia ,  Ravikiran Nory ,  Dale G. Schwent ,  Kenneth A. Stewart ,  David R. Wilson

IPC: H04B7/00

CPC classification number: H04W52/367 ,  H04L5/0066 ,  H04W28/04 ,  H04W52/146 ,  H04W52/262 ,  H04W72/042

Abstract: A wireless communication entity schedulable in a wireless communication network, including a controller (603) communicably coupled to a power amplifier (608), wherein the controller varies a maximum transmit power of the wireless communication entity based on the radio resource assignment information receiver by the radio receiver.

Abstract translation: 一种在无线通信网络中可调度的无线通信实体，包括可通信地耦合到功率放大器（608）的控制器（603），其中所述控制器基于所述无线电资源分配信息接收器，通过所述无线电资源分配信息接收器改变所述无线通信实体的最大发射功率 无线电接收机。