公开(公告)号：US07792077B2

公开(公告)日：2010-09-07

申请号：US12570005

申请日：2009-09-30

申请人： Jung-Lin Pan ,  Stephen E. Terry ,  Guodong Zhang ,  Peter S. Wang

发明人： Jung-Lin Pan ,  Stephen E. Terry ,  Guodong Zhang ,  Peter S. Wang

IPC分类号： H04W4/00

CPC分类号： H04W72/1289 ,  H04W72/1268

摘要： A method for generating a serving grant at a wireless transmit/receive unit is disclosed. An absolute grant channel signal is decoded to obtain an absolute grant from a serving cell. A relative grant channel signal is decoded to obtain a relative grant from a serving radio link set and a relative grant from a non-serving radio link. A first serving grant candidate is generated based on the absolute grant from the serving cell or the relative grant from the serving radio link set. A second serving grant candidate is generated based on the relative grant from the non-serving radio link. The serving grant is generated based on the first serving grant candidate and the second serving grant candidate.

摘要翻译： 公开了一种用于在无线发射/接收单元处产生服务授权的方法。 绝对授权信道信号被解码以从服务小区获得绝对授权。 相对授权信道信号被解码以从服务无线电链路集获得相对授权以及来自非服务无线电链路的相对授权。 基于来自服务小区的绝对授权或来自服务无线电链路集的相对授权生成第一服务准予候选者。 基于来自非服务无线电链路的相对授权生成第二服务准予候选者。 基于第一服务授权候选者和第二服务授权候选者生成服务授权。

公开(公告)号：US20090190645A1

公开(公告)日：2009-07-30

申请号：US12419333

申请日：2009-04-07

申请人： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, JR. ,  Peter Edward Becker

发明人： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, JR. ,  Peter Edward Becker

IPC分类号： H04L25/49 ,  H03H7/30

CPC分类号： H04L25/03159 ,  H04B17/336

摘要： A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

摘要翻译： 结合在其中的接收器或集成电路（IC）包括用于产生均衡样本的基于快速傅立叶变换（FFT）（或基于混合FFT）的滑动窗口块级均衡器（BLE）。 BLE包括噪声功率估计器，第一和第二信道估计器，基于FFT的码片级均衡器（CLEQ）和信道监视器单元。 噪声功率估计器基于两个不同的采样数据流产生噪声功率估计。 信道估计器基于样本数据流生成相应的信道估计。 信道监视单元基于信道估计产生包括截断的信道估计向量的第一信道监视信号，以及指示截断的信道估计向量的近似变化率的第二信道监视信号。 基于FFT的CLEQ基于噪声功率估计，第一和第二采样数据流的一个块采样，信道估计和监视信号来生成均衡的采样。

公开(公告)号：US07570689B2

公开(公告)日：2009-08-04

申请号：US11238318

申请日：2005-09-29

申请人： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, Jr. ,  Peter Edward Becker

发明人： Bin Li ,  Robert A. DiFazio ,  Jung-Lin Pan ,  Alexander Reznik ,  John David Kaewell, Jr. ,  Peter Edward Becker

IPC分类号： H04L25/49 ,  H04L27/04 ,  H03H7/30

CPC分类号： H04L25/03159 ,  H04B17/336

摘要： A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

摘要翻译： 结合在其中的接收器或集成电路（IC）包括用于产生均衡样本的基于快速傅立叶变换（FFT）（或基于混合FFT）的滑动窗口块级均衡器（BLE）。 BLE包括噪声功率估计器，第一和第二信道估计器，基于FFT的码片级均衡器（CLEQ）和信道监视器单元。 噪声功率估计器基于两个不同的采样数据流产生噪声功率估计。 信道估计器基于样本数据流生成相应的信道估计。 信道监视单元基于信道估计产生包括截断的信道估计向量的第一信道监视信号，以及指示截断的信道估计向量的近似变化率的第二信道监视信号。 基于FFT的CLEQ基于噪声功率估计，第一和第二采样数据流的一个块采样，信道估计和监视信号来生成均衡的采样。

公开(公告)号：US07539262B2

公开(公告)日：2009-05-26

申请号：US11259430

申请日：2005-10-26

申请人： Jung-Lin Pan ,  Robert A. DiFazio

发明人： Jung-Lin Pan ,  Robert A. DiFazio

IPC分类号： H04B7/02

CPC分类号： H04B7/0854 ,  H04B1/71052 ,  H04B1/71055 ,  H04L25/0206 ,  H04L25/03171 ,  H04L2025/03426

摘要： A method and apparatus for performing chip level equalization (CLE) using joint processing to enhance performance and system throughput using a transmitter having a plurality of transmit antennas and a receiver having a plurality of receive antennas. A channel response matrix is formed between the transmit antennas and the receive antennas to generate a joint channel correlation matrix between the transmit antennas and the receive antennas using a block-FFT (B-FFT) decomposition of the channel response matrix. Estimates of transmitted chip sequences from each of the transmit antennas are generated using minimum mean square error (MMSE) and the joint channel correlation matrix are combined. The combined estimate of the transmitted chip sequences are despread to recover transmitted data.

摘要翻译： 一种用于使用联合处理来执行芯片级均衡（CLE）的方法和装置，以使用具有多个发射天线的发射机和具有多个接收天线的接收机来提高性能和系统吞吐量。 在发射天线和接收天线之间形成信道响应矩阵，以使用信道响应矩阵的块FFT（B-FFT）分解来生成发射天线和接收天线之间的联合信道相关矩阵。 使用最小均方误差（MMSE）生成来自每个发射天线的发射码片序列的估计，并且组合联合信道相关矩阵。 传输的码片序列的组合估计被解扩以恢复发送的数据。

公开(公告)号：US07437135B2

公开(公告)日：2008-10-14

申请号：US10977525

申请日：2004-10-29

申请人： Jung-Lin Pan ,  Robert A. DiFazio ,  Yingming Tsai

发明人： Jung-Lin Pan ,  Robert A. DiFazio ,  Yingming Tsai

IPC分类号： H04B1/18

CPC分类号： H04B7/0845 ,  H04L2025/03375 ,  H04L2025/03477

摘要： At least one communication is transmitted from a plurality of transmitting antennas. A signal is received. For each transmitting antenna, the received signal is equalized with respect to a channel experience by the communication between the transmitting antenna and the signal receiving, producing symbols. A contribution of that transmitting antenna to the received signal is constructed using the produced symbols. The contribution of that transmitting antenna is subtracted from the received signal for use in further equalization of the received signal with respect to others of the transmitting antennas.

摘要翻译： 从多个发送天线发送至少一个通信。 接收到一个信号。 对于每个发射天线，通过发射天线和信号接收之间的通信产生符号，使接收信号相对于信道体验相等。 使用所产生的符号来构造该发射天线对接收信号的贡献。 从接收信号中减去该发射天线的贡献，用于相对于发射天线中的其它天线进一步均衡接收信号。

公开(公告)号：US08553521B2

公开(公告)日：2013-10-08

申请号：US12377975

申请日：2006-09-25

申请人： Guodong Zhang ,  Jung-Lin Pan ,  Robert Lind Olesen ,  Yingming Tsai

发明人： Guodong Zhang ,  Jung-Lin Pan ,  Robert Lind Olesen ,  Yingming Tsai

IPC分类号： H04J11/00

CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/023 ,  H04L25/0248 ,  H04L27/2601 ,  H04L27/2614 ,  H04L27/2647

摘要： A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.

摘要翻译： 公开了一种基于多输入多输出（MIMO）波束成形的单载波频分多址（SC-FDMA）系统。 在发射机上，对传输数据进行快速傅里叶变换（FFT）以产生频域数据。 频域发射数据被映射到分配的子载波。 对映射到所分配的子载波的发送数据执行快速傅里叶逆变换（IFFT），以生成时域发送数据。 时域发送数据通过天线发送。 在接收机处，对接收到的数据执行FFT以产生频域接收的数据。 执行子载波解映射以提取映射在所分配的子载波上的数据。 信道估计器生成分解为U，D和VH矩阵的信道矩阵。 基于分解的信道矩阵到提取的频域接收数据，发送和接收天线之间的信道失真和干扰被均衡。

公开(公告)号：US20100220684A1

公开(公告)日：2010-09-02

申请号：US12776769

申请日：2010-05-10

申请人： Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan

发明人： Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan

IPC分类号： H04W72/04

CPC分类号： H04L5/0007 ,  H04L5/0016 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0073 ,  H04L27/2601 ,  H04L27/2647

摘要： A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data.

摘要翻译： 混合正交频分多址（OFDMA）无线发射/接收单元（WTRU）和方法。 WTRU包括发射机和接收机。 接收机处理接收到的数据以恢复使用OFDMA映射到子载波的数据。 接收机通过从多用户扩展数据分离用户数据并从非扩展数据中恢复第二输入数据来恢复第一输入数据。

公开(公告)号：US20070140106A1

公开(公告)日：2007-06-21

申请号：US11611510

申请日：2006-12-15

申请人： Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan ,  Fatih Ozluturk

发明人： Yingming Tsai ,  Guodong Zhang ,  Jung-Lin Pan ,  Fatih Ozluturk

IPC分类号： H04J11/00 ,  H04J3/06

CPC分类号： H04L27/2613 ,  H04B7/2681 ,  H04J11/0069 ,  H04J11/0073 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2636 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662 ,  H04W48/16 ,  H04W56/00

摘要： A method for performing cell search in an orthogonal frequency division multiple access (OFDMA) based cellular communication network in which a primary synchronization channel (P-SCH), and optionally a secondary synchronization channel (S-SCH), carries cell search information. A downlink signal is received containing P-SCH symbols. The P-SCH symbols are processed to obtain an initial detection of frame timing, orthogonal frequency division multiplexing (OFDM) symbol timing, a cell identifier (ID), a frequency offset, and a cell transmission bandwidth. Optionally, an OFDM symbol timing self-check and error correction is then performed.

摘要翻译： 一种在基于正交频分多址（OFDMA）的蜂窝通信网络中执行小区搜索的方法，其中主同步信道（P-SCH）和可选地的辅同步信道（S-SCH）携带小区搜索信息。 接收包含P-SCH符号的下行链路信号。 处理P-SCH符号以获得帧定时，正交频分复用（OFDM）符号定时，小区标识符（ID），频率偏移和小区传输带宽的初始检测。 可选地，执行OFDM符号定时自检和纠错。

公开(公告)号：US20070064665A1

公开(公告)日：2007-03-22

申请号：US11507712

申请日：2006-08-21

申请人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

发明人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

IPC分类号： H04J1/00

CPC分类号： H04W72/1226 ,  H04L1/188 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/023 ,  H04L27/2602 ,  H04W8/26 ,  H04W52/08 ,  H04W52/146 ,  H04W52/16 ,  H04W52/248 ,  H04W52/48 ,  H04W52/50 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866

摘要： A method and apparatus for accessing a contention-based uplink random access channel (RACH) in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A wireless transmit/receive unit (WTRU) randomly selects a RACH subchannel and a signature among a plurality of available RACH subchannels and signatures. The WTRU transmits a preamble using the selected signature via the selected RACH subchannel at a predetermined or computed transmission power. A base station monitors the RACH to detect the preamble and sends an acquisition indicator (AI) to the WTRU when a signature is detected on the RACH. When receiving a positive acknowledgement, the WTRU sends a message part to the base station. If receiving a negative acknowledgement or no response, the WTRU retransmits the preamble.

摘要翻译： 公开了一种在单载波频分多址（SC-FDMA）系统中访问基于竞争的上行随机接入信道（RACH）的方法和装置。 无线发射/接收单元（WTRU）在多个可用的RACH子信道和签名中随机选择RACH子信道和签名。 WTRU以预定或计算的传输功率经由所选择的RACH子信道使用所选择的签名来发送前导码。 当在RACH上检测到签名时，基站监视RACH以检测前导码，并将捕获指示符（AI）发送到WTRU。 当接收到肯定确认时，WTRU向基站发送消息部分。 如果接收到否定的确认或没有响应，则WTRU重传前导码。

公开(公告)号：US20070049309A1

公开(公告)日：2007-03-01

申请号：US11477279

申请日：2006-06-29

申请人： Jung-Lin Pan ,  Stephen Terry ,  Guodong Zhang ,  Peter Wang

发明人： Jung-Lin Pan ,  Stephen Terry ,  Guodong Zhang ,  Peter Wang

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W72/1289 ,  H04W72/1268

摘要： A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic repeat request process may be activated or deactivated depending on whether the received AG is a primary AG or a secondary AG, whether a scheduling mode is a primary AG mode or a secondary AG mode, whether an AG value is set to “INACTIVE” and whether a transmission time interval is 2 ms or 10 ms. A Node-B may send a secondary AG to the WTRU before switching from a primary AG mode to a secondary AG mode and may send the secondary AG only if there is no out-of-date secondary AG exists, which may be detected by implementing a time threshold.

摘要翻译： 公开了一种用于处理增强的上行链路调度许可的方法和装置。 无线发射/接收单元（WTRU）检测绝对授权（AG）和相对授权（RG）。 一旦WTRU检测到AG或RG，则生成新的服务授权（SG），并且可以根据所接收的AG是主AG还是辅助AG来激活或去激活混合自动重传请求过程，无论是调度模式 是主AG模式还是辅助AG模式，AG值是否设置为“INACTIVE”，传输时间间隔是2ms还是10ms。 节点B可以在从主AG模式切换到辅助AG模式之前向WTRU发送辅助AG，并且只有当没有过期的次级AG存在时才能发送次级AG，这可以通过实现来检测 时间阈值。