公开(公告)号：US08509323B2

公开(公告)日：2013-08-13

申请号：US11466345

申请日：2006-08-22

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04K1/10

CPC分类号： H04L5/0042 ,  H04B1/7103 ,  H04L5/0058 ,  H04L5/0094 ,  H04L27/2608 ,  H04L27/2618 ,  H04W72/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/12

摘要： A method in a wireless communication terminal includes receiving a radio resource allocation having a plurality of sub-carriers that are a subset of available sub-carriers. The available sub-carriers include a DC sub-carrier wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.

摘要翻译： 无线通信终端中的方法包括接收具有作为可用子载波的子集的多个子载波的无线电资源分配。 可用的子载波包括DC子载波，其中如果DC子载波在任何两个子载波之间，则DC子载波和多个子载波中除了一个最大副载波之外的所有子边， 如果DC子载波不在分配的任何两个子载波之间，则将分配的载波和除了DC子载波之外的所有子载波指定用于传输。

公开(公告)号：US20090310589A1

公开(公告)日：2009-12-17

申请号：US12137695

申请日：2008-06-12

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04J1/00

CPC分类号： H04L5/0007 ,  H04L25/061

摘要： Receiving units will switch between performing a DC bias suppression and not removing the DC distortion at the receiver depending on the amount of DC interference level observed/measured/estimated. Since the overall DC interference is from all uplink transmitters, potentially at different power levels, the amount of DC distortion can be measured based on the difference between the received power level and the expected power level on the DC sub-carrier. Additionally it can be estimated based on the number of active transmitters, their allocation bandwidth, power control target and/or a rough estimate of the DC distortion introduced by each active transmitter and also the distortion introduced by the receiver. Once this distortion level is estimated, a decision is then made whether or not to remove the DC distortion.

摘要翻译： 接收单元将在执行直流偏置抑制之间进行切换，而不会根据观测/测量/估计的直流干扰电平的量消除接收机的直流失真。 由于整个DC干扰来自所有上行链路发射机，潜在地处于不同的功率电平，所以可以基于DC子载波上的接收功率电平与预期功率电平之间的差异来测量DC失真量。 此外，可以基于活动发射机的数量，其分配带宽，功率控制目标和/或由每个有源发射机引入的DC失真的粗略估计以及由接收机引入的失真来估计。 一旦估计出该失真水平，则作出是否去除DC失真的决定。

公开(公告)号：US08223737B2

公开(公告)日：2012-07-17

申请号：US12137695

申请日：2008-06-12

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04B7/208 ,  H04B7/00 ,  H04B1/00 ,  H04J1/00

CPC分类号： H04L5/0007 ,  H04L25/061

摘要： Receiving units will switch between performing a DC bias suppression and not removing the DC distortion at the receiver depending on the amount of DC interference level observed/measured/estimated. Since the overall DC interference is from all uplink transmitters, potentially at different power levels, the amount of DC distortion can be measured based on the difference between the received power level and the expected power level on the DC sub-carrier. Additionally it can be estimated based on the number of active transmitters, their allocation bandwidth, power control target and/or a rough estimate of the DC distortion introduced by each active transmitter and also the distortion introduced by the receiver. Once this distortion level is estimated, a decision is then made whether or not to remove the DC distortion.

摘要翻译： 接收单元将在执行直流偏置抑制之间进行切换，而不会根据观测/测量/估计的直流干扰电平的量消除接收机的直流失真。 由于整个DC干扰来自所有上行链路发射机，潜在地处于不同的功率电平，所以可以基于DC子载波上的接收功率电平与预期功率电平之间的差异来测量DC失真量。 此外，可以基于活动发射机的数量，其分配带宽，功率控制目标和/或由每个有源发射机引入的DC失真的粗略估计以及由接收机引入的失真来估计。 一旦估计出该失真水平，则作出是否去除DC失真的决定。

公开(公告)号：US20080049851A1

公开(公告)日：2008-02-28

申请号：US11466345

申请日：2006-08-22

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04K1/10

CPC分类号： H04L5/0042 ,  H04B1/7103 ,  H04L5/0058 ,  H04L5/0094 ,  H04L27/2608 ,  H04L27/2618 ,  H04W72/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/12

摘要： A method in a wireless communication terminal (103), including receiving a radio resource allocation comprising a plurality of sub-carriers that is a subset of available sub-carriers, wherein the available sub-carriers include a DC sub-carrier, wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier from the plurality of sub-carriers are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.

摘要翻译： 一种无线通信终端（103）中的方法，包括接收包括作为可用子载波的子集的多个子载波的无线电资源分配，其中所述可用子载波包括DC子载波，其中所述DC 如果直流副载波在分配的任何两个子载波之间，则副载波和多个子载波中除了一个最大副载波之外的所有副载波被指定用于传输，除了 如果DC子载波不在分配的任何两个子载波之间，则指定用于传输来自多个子载波的DC子载波。

公开(公告)号：US08031583B2

公开(公告)日：2011-10-04

申请号：US11276982

申请日：2006-03-20

申请人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Kenneth A. Stewart

发明人： Brian K. Classon ,  Kevin L. Baum ,  Amitava Ghosh ,  Robert T. Love ,  Vijay Nangia ,  Kenneth A. Stewart

IPC分类号： H04J11/00 ,  H04B7/208

CPC分类号： H04B7/2656 ,  H04L1/1822

摘要： During operation radio frames are divided into a plurality of subframes. Data is transmitted over the radio frames within a plurality of subframes, and having a subframe type selected from a plurality of subframe types. Each subframe type having a same time duration and being distinguished by having a differing number of OFDM symbols or a differing number of single carrier FDMA symbols.

摘要翻译： 在操作期间，无线电帧被分成多个子帧。 数据通过多个子帧内的无线电帧发送，并且具有从多个子帧类型中选择的子帧类型。 每个子帧类型具有相同的持续时间并且通过具有不同数量的OFDM符号或不同数目的单载波FDMA符号来区分。

公开(公告)号：US07706249B2

公开(公告)日：2010-04-27

申请号：US11351304

申请日：2006-02-08

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

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

IPC分类号： H04J11/00

CPC分类号： H04L5/005 ,  H04J11/0073 ,  H04L5/0007 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656

摘要： 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.

摘要翻译： 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：US20110268104A1

公开(公告)日：2011-11-03

申请号：US13183725

申请日：2011-07-15

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

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

IPC分类号： H04W56/00

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

摘要： 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.

摘要翻译： 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：US08767525B2

公开(公告)日：2014-07-01

申请号：US13183725

申请日：2011-07-15

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

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

IPC分类号： H04J11/00

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

摘要： 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.

摘要翻译： 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：US20110211542A1

公开(公告)日：2011-09-01

申请号：US13052777

申请日：2011-03-21

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

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

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04L1/1829 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2655

摘要： 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 interleaved in time and frequency. The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry for common sequence elements in OFDMA symbol periods 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.

摘要翻译： 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交织的多个序列元素。 通过在支持多个系统带宽的OFDMA系统中为OFDMA符号定时检测和频率误差检测在OFDMA符号周期中为公共序列元素提供预定的时域对称性，同步信道信号序列元件能够实现具有低计算负荷的初始采集和小区搜索方法， 同步和非同步的系统，大的信元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：US07983143B2

公开(公告)日：2011-07-19

申请号：US11351306

申请日：2006-02-08

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

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

IPC分类号： H04J11/00

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

摘要： 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) and including information for providing at least partial cell identification information (812). 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 (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.

摘要翻译： 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 带宽的局部部分（816）并且包括用于提供至少部分小区识别信息的信息（812）。 同步信道信号支持在支持多个系统带宽的OFDMA系统中提供OFDMA符号定时检测和频率误差检测（1112）和帧边界检测和小区特定信息检测（1114）的具有低计算负荷的初始采集和小区搜索方法， 同步和非同步的系统，大的信元索引和具有短和长循环前缀长度的OFDMA符号结构。