公开(公告)号：US08903447B2

公开(公告)日：2014-12-02

申请号：US12981423

申请日：2010-12-29

申请人： James W. McCoy ,  Ning Chen

发明人： James W. McCoy ,  Ning Chen

IPC分类号： H04W4/02 ,  H04B17/00 ,  H04W52/08 ,  H04W24/10 ,  H04W52/36

CPC分类号： H04W52/08 ,  H04B17/27 ,  H04B17/336 ,  H04W24/10 ,  H04W52/367

摘要： A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station.

摘要翻译： 操作无线通信系统的技术包括相对于服务基站确定包括第一用户站和第二用户站的多个用户站的相应几何。 然后，基于各自的几何结构来调度用于对多个用户站和服务基站之间的信道进行探测的相应信道探测带宽。 相应的信道探测带宽包括第一信道探测带宽（与第一用户站相关联）和第二信道探测带宽（与第二用户站相关联）。 第一声​​道探测带宽大于或等于第二声道探测带宽，并且第一用户台具有比第二用户台更低的几何形状。

公开(公告)号：US08625522B2

公开(公告)日：2014-01-07

申请号：US13526419

申请日：2012-06-18

申请人： James W. McCoy ,  Ning Chen ,  Jayesh H. Kotecha

发明人： James W. McCoy ,  Ning Chen ,  Jayesh H. Kotecha

IPC分类号： H04W4/00 ,  H04W72/00 ,  H04J1/00 ,  H04L12/28

CPC分类号： H04L5/0037 ,  H04W72/14

摘要： A technique of operating a wireless communication device includes creating a resource block map by associating respective subscriber station identifications, corresponding to respective subscriber stations, with one or more resource blocks. The respective subscriber station identifications and the resource block map are transmitted, from a serving base station, in one or more control channel symbols.

摘要翻译： 操作无线通信设备的技术包括通过将对应于各个用户站的各个用户站标识与一个或多个资源块相关联来创建资源块映射。 从服务基站在一个或多个控制信道符号中发送相应的用户台标识和资源块映射。

公开(公告)号：US08363540B2

公开(公告)日：2013-01-29

申请号：US13210240

申请日：2011-08-15

申请人： James W. McCoy

发明人： James W. McCoy

IPC分类号： H04J11/00 ,  H04J3/02 ,  G06F15/00 ,  G06F17/15 ,  H04B7/204 ,  H04B17/00

CPC分类号： H04J1/12 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04L27/2672

摘要： A method for generating a transmit sequence in a single carrier frequency division multiple access (SC-FDMA) transmitter is disclosed. In one embodiment, the method includes generating a first time domain sequence, transforming the first time domain sequence to a first frequency domain sequence according to a first transform, distributing the first frequency domain sequence among a subset of subcarriers among a plurality of subcarriers in a second frequency domain sequence, transforming the second frequency domain sequence to a second time domain sequence, and adding a cyclic prefix to the second time domain sequence to form a transmit sequence. In one exemplary embodiment, the first time domain sequence is a plurality of pilot symbols that have known properties e.g., a constant amplitude, and zero autocorrelation (CAZAC).

摘要翻译： 公开了一种用于在单载波频分多址（SC-FDMA）发射机中产生发射序列的方法。 在一个实施例中，该方法包括：生成第一时域序列，根据第一变换将第一时域序列变换为第一频域序列;在第一时域序列中，在第一时域序列中的第一频域序列中， 将所述第二频域序列变换为第二时域序列，以及向所述第二时域序列添加循环前缀以形成发送序列。 在一个示例性实施例中，第一时域序列是具有已知特性的多个导频符号，例如恒定幅度和零自相关（CAZAC）。

公开(公告)号：US08279978B2

公开(公告)日：2012-10-02

申请号：US13210251

申请日：2011-08-15

申请人： James W. McCoy

发明人： James W. McCoy

IPC分类号： H03K9/00 ,  H04L27/00 ,  H04J11/00 ,  G06F17/14 ,  G06F17/15 ,  H04B7/204

CPC分类号： H04J1/12 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04L27/2672

摘要： A method for receiving a pilot symbol in a receiver is disclosed. In one embodiment, the method includes removing a cyclic prefix from a received sequence to produce a modified sequence, transforming the modified sequence to a first frequency domain sequence according to a first transform, demapping a plurality of distributed subcarriers in the transformed modified sequence to extract a plurality of received symbols, deriving an intermediate channel estimate for each of the plurality of received symbols, and interpolating a final channel estimate based on the plurality of derived intermediate channel estimates. In one exemplary embodiment, the received symbols have one or more predefined characteristics such as a constant amplitude, and zero autocorrelation (CAZAC sequence).

摘要翻译： 公开了一种用于在接收机中接收导频符号的方法。 在一个实施例中，该方法包括从接收到的序列中去除循环前缀以产生经修改的序列，根据第一变换将经修改的序列变换为第一频域序列，对转换的修改序列中的多个分布式子载波进行解映射以提取 多个接收的符号，导出所述多个接收符号中的每一个的中间信道估计，以及基于所述多个导出的中间信道估计来内插最终信道估计。 在一个示例性实施例中，所接收的符号具有一个或多个预定义特性，例如恒定幅度和零自相关（CAZAC序列）。

公开(公告)号：US08000228B2

公开(公告)日：2011-08-16

申请号：US12806944

申请日：2010-08-24

申请人： James W. McCoy

发明人： James W. McCoy

IPC分类号： H04J11/00 ,  H04J3/02 ,  H03D7/16 ,  G06F17/14 ,  G06F17/15 ,  G06G7/38 ,  H04B7/204 ,  H04B17/00 ,  H04B7/00

CPC分类号： H04J1/12 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04L27/2672

摘要： Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508). The M-point parallel transform sequence (312) is distributed (316, 510) to a set of M subcarriers among N subcarriers to form an N-point frequency-domain sequence (318) wherein the M subcarriers are evenly spaced apart. An N-point inverse fast Fourier transform (320, 512) is performed to convert the N-point frequency-domain sequence to an N-point time-domain sequence (322). The N-point time-domain sequence is converted (324, 514) to a serial sequence (326), and a cyclic prefix is added (328, 516) to the serial sequence to form a pilot symbol (330).

摘要翻译： 用于产生导频符号（330）的方法（500,800）和对应系统（100,200,300,400,900）包括提供M点并行变换序列，其是CAZAC序列（312， 504-508）。 M点并行变换序列（312）在N个子载波中分配（316,510）到一组M个子载波，以形成N个频域序列（318），其中M个子载波被均匀间隔开。 执行N点快速傅里叶逆变换（320,512）以将N点频域序列转换为N点时域序列（322）。 将N点时域序列转换（324,514）到串行序列（326），并向循环序列添加循环前缀（328,516）以形成导频符号（330）。

公开(公告)号：US20090245148A1

公开(公告)日：2009-10-01

申请号：US12057514

申请日：2008-03-28

申请人： James W. McCoy

发明人： James W. McCoy

IPC分类号： H04B7/00

CPC分类号： H04L5/0048 ,  H04B1/7143 ,  H04W28/04 ,  H04W72/085 ,  H04W72/1226 ,  H04W72/1231

摘要： A technique of operating a wireless communication device includes receiving an assigned starting point index and an assigned reference signal bandwidth for a reference signal. The reference signal is then transmitted multiple times, beginning at an initial resource block that is associated with the assigned starting point index and in accordance with the assigned reference signal bandwidth, across a shared channel.

摘要翻译： 操作无线通信设备的技术包括：为参考信号接收分配的起始点索引和分配的参考信号带宽。 然后，通过共享信道，从与分配的起始点索引相关联的初始资源块和根据所分配的参考信号带宽开始多次参考信号。

公开(公告)号：US20090086669A1

公开(公告)日：2009-04-02

申请号：US11865341

申请日：2007-10-01

申请人： James W. McCoy ,  Taeyoon Kim ,  Liying Song

发明人： James W. McCoy ,  Taeyoon Kim ,  Liying Song

IPC分类号： H04Q7/00

CPC分类号： H04L5/0053 ,  H04J11/0079 ,  H04L5/0007

摘要： A technique of operating a wireless communication device includes selecting, from a primary sequence group that includes respective primary sequences, one of the respective primary sequences as a first portion of a cell identification (ID). In this case, the respective primary sequences are each associated with respective secondary sequence subgroups included in a secondary sequence group. Each of the respective secondary sequence subgroups include secondary sequences. One of the secondary sequences is selected (from one of the respective secondary sequence subgroups that is associated with the selected one of the respective primary sequences) for a second portion of the cell ID. At least some of the secondary sequences are only included in one of the respective secondary sequence subgroups. The first portion of the cell ID is encoded on a first downlink waveform that is to be transmitted and the second portion of the cell ID is encoded on a second downlink waveform that is to be transmitted. The first and second downlink waveforms are then transmitted.

摘要翻译： 操作无线通信设备的技术包括从包括各个主序列的主序列组中选择一个相应的一级序列作为小区标识（ID）的第一部分。 在这种情况下，各个一级序列各自与二级序列组中包括的各个次级序列子组相关联。 各个次级序列子组中的每一个包括二级序列。 对于小区ID的第二部分，选择次要序列之一（来自与相应主序列中选择的一个相关联的相应辅助序列子组之一）。 至少一些二级序列仅包括在相应的次级序列子组之一中。 小区ID的第一部分在要发送的第一下行链路波形上被编码，并且小区ID的第二部分被编码在要被发送的第二下行链路波形上。 然后发送第一和第二下行链路波形。

公开(公告)号：US20090060102A1

公开(公告)日：2009-03-05

申请号：US11849551

申请日：2007-09-04

申请人： Ian C. Wong ,  Leo G. Dehner ,  James W. McCoy

发明人： Ian C. Wong ,  Leo G. Dehner ,  James W. McCoy

IPC分类号： H04L27/08

CPC分类号： H03G3/3068 ,  H03G3/001 ,  H04L25/0212

摘要： A method of fast predictive automatic gain control is disclosed including estimating channel gain applied to a received signal, predicting channel gain at a subsequent time by applying temporal correlation statistics to the estimated channel gain, determining a predicted receiver gain which reduces variance between the predicted channel gain and a predetermined target power level, and applying the predicted receiver gain to the received signal. The method may include applying linear minimum mean-squared error prediction to the estimated channel gain. The method may include predicting error variance at the subsequent time by applying the temporal correlation statistics to the estimated channel gain and combining the predicted channel gain and the predicted error variance. The method may include estimating channel gain of known pilot symbols, estimating a temporal correlation function using the estimated channel gain, and determining predicted channel gain using the estimated channel gain and the estimated temporal correlation function.

摘要翻译： 公开了一种快速预测自动增益控制的方法，包括估计应用于接收信号的信道增益，通过对估计的信道增益应用时间相关统计来预测随后时间的信道增益，确定预测的接收机增益，其减小预测信道 增益和预定的目标功率电平，以及将预测的接收机增益应用于所接收的信号。 该方法可以包括对估计的信道增益应用线性最小均方误差预测。 该方法可以包括通过对估计的信道增益应用时间相关统计量并组合预测的信道增益和预测误差方差来预测随后时间的误差方差。 该方法可以包括估计已知导频符号的信道增益，使用估计的信道增益估计时间相关函数，以及使用估计的信道增益和估计的时间相关函数来确定预测信道增益。

公开(公告)号：US20080268888A1

公开(公告)日：2008-10-30

申请号：US11742255

申请日：2007-04-30

申请人： Ning Chen ,  Leo G. Dehner ,  James W. McCoy

发明人： Ning Chen ,  Leo G. Dehner ,  James W. McCoy

IPC分类号： H04B7/00

CPC分类号： H04W72/0406 ,  H04W48/16

摘要： A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective control channels, which include a first control channel associated with the first subscriber station and a second control channel associated with the second subscriber station, for the multiple subscriber stations are then scheduled based on the respective geometries. The first control channel is scheduled to be encountered earlier in a control channel search procedure, of the one or more control channel symbols, than the second control channel. The first subscriber station has a lower geometry than the second subscriber station.

摘要翻译： 操作无线通信系统的技术包括相对于服务基站确定包括第一用户站和第二用户站的多个用户站的相应几何。 然后基于各自的几何结构来调度与多个用户站相关的包括与第一用户站相关联的第一控制信道和与第二用户站相关联的第二控制信道的各个控制信道。 第一控制信道被调度为比第二控制信道更早地在一个或多个控制信道符号的控制信道搜索过程中遇到。 第一用户站具有比第二用户站更低的几何形状。

公开(公告)号：US20080233992A1

公开(公告)日：2008-09-25

申请号：US11725423

申请日：2007-03-19

申请人： Oghenekome F. Oteri ,  James W. McCoy

发明人： Oghenekome F. Oteri ,  James W. McCoy

IPC分类号： H04B7/00

CPC分类号： H04W52/18 ,  H04W52/146 ,  H04W52/241 ,  H04W52/247 ,  H04W52/262 ,  H04W52/365 ,  H04W52/54

摘要： Methods and corresponding systems for determining a transmit power in a mobile device include receiving, in the mobile device, a cell-wide power control parameter related to a target receive power at a serving base station. Thereafter, a transmit power is calculated in response to the cell-wide power control parameter and an implicit mobile-specific power control parameter. The mobile device then transmits using the transmit power. The cell-wide power control parameter can be a cell target signal to interference-plus-noise ratio, or a fractional power control exponent. The implicit mobile-specific power control parameter can be a modulation and coding level previously used by the mobile device, or a downlink SINR level measured by the mobile device.

摘要翻译： 用于确定移动设备中的发射功率的方法和相应系统包括在移动设备中接收与服务基站处的目标接收功率相关的小区范围功率控制参数。 此后，响应于小区范围功率控制参数和隐式移动专用功率控制参数来计算发射功率。 移动设备然后使用发送功率进行发送。 小区范围的功率控制参数可以是小区目标信号与干扰加噪声比或分数功率控制指数。 隐含的移动专用功率控制参数可以是移动设备先前使用的调制和编码级别，或者由移动设备测量的下行链路SINR电平。