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1. 发明申请

US20070140106A1 SYNCHRONIZATION CHANNEL FOR OFDMA BASED EVOLVED UTRA DOWNLINK 审中-公开
标题翻译：用于基于OFDMA的演进型UTRA下行链路的同步信道
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。

2. 发明授权

US09313064B2 Method and apparatus for synchronization in an OFDMA evolved UTRA wireless communication system 有权
标题翻译：用于OFDMA演进的UTRA无线通信系统中的同步的方法和装置
公开(公告)号：US09313064B2
公开(公告)日：2016-04-12
申请号：US11735628
申请日：2007-04-16
申请人： Guodong Zhang , Kyle Jung-Lin Pan , Allan Yingming Tsai
发明人： Guodong Zhang , Kyle Jung-Lin Pan , Allan Yingming Tsai
IPC分类号： H04L5/00 , H04L27/26 , H04J11/00 , H04W56/00 , H04W92/10
CPC分类号： H04W56/002 , H04J11/00 , H04J11/0069 , H04L5/0007 , H04L5/0016 , H04L5/0023 , H04L5/0048 , H04L27/18 , H04L27/2613 , H04L27/2621 , H04L27/2655 , H04W16/18 , H04W56/00 , H04W72/0446 , H04W92/10
摘要： A method and apparatus for synchronization in an orthogonal frequency division multiple access (OFDMA) evolved universal terrestrial radio access (E-UTRA) system including at least one base station and a plurality of wireless transmit/receive units (WTRUs). A secondary synchronization channel (S-SCH) symbol is generated to include cell-specific information. The S-SCH symbol is mapped to the center of the available bandwidth of the system. In one embodiment, the S-SCH symbol is transmitted on different subcarriers at different sectors in the system. In another embodiment, the S-SCH symbol is transmitted on the same subcarriers at different sectors in the system.
摘要翻译：一种用于在包括至少一个基站和多个无线发射/接收单元（WTRU）的正交频分多址（OFDMA）演进的通用地面无线接入（E-UTRA）系统中进行同步的方法和装置。生成辅同步信道（S-SCH）符号以包括小区特定信息。 S-SCH符号映射到系统可用带宽的中心。在一个实施例中，S-SCH符号在系统中不同扇区的不同子载波上发送。在另一个实施例中，S-SCH符号在系统中的不同扇区的相同子载波上发送。

3. 发明授权

US08705641B2 Orthogonal frequency division multiplexing-code division multiple access system 有权
标题翻译：正交频分复用码分多址系统
公开(公告)号：US08705641B2
公开(公告)日：2014-04-22
申请号：US12984101
申请日：2011-01-04
申请人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
发明人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
IPC分类号： H04L27/28 , H04B1/707
CPC分类号： H04B1/711 , H04L5/026 , H04L2025/03414
摘要： An orthogonal frequency division multiplexing (OFDM)-code division multiple access (CDMA) system is disclosed. The system includes a transmitter and a receiver. At the transmitter, a spreading and subcarrier mapping unit spreads an input data symbol with a complex quadratic sequence code to generate a plurality of chips and maps each chip to one of a plurality of subcarriers. An inverse discrete Fourier transform is performed on the chips mapped to the subcarriers and a cyclic prefix (CP) is inserted to an OFDM frame. A parallel-to-serial converter converts the time-domain data into a serial data stream for transmission. At the receiver, a serial-to-parallel converter converts received data into multiple received data streams and the CP is removed from the received data. A discrete Fourier transform is performed on the received data streams and equalization is performed. A despreader despreads an output of the equalizer to recover the transmitted data.
摘要翻译：公开了一种正交频分复用（OFDM）码分多址（CDMA）系统。该系统包括发射机和接收机。在发射机处，扩展和副载波映射单元利用复数二次序列码扩展输入数据符号，以产生多个码片，并将每个码片映射到多个副载波中的一个。对映射到子载波的芯片执行逆离散傅立叶变换，并且将循环前缀（CP）插入到OFDM帧中。并行到串行转换器将时域数据转换为串行数据流以进行传输。在接收机处，串并转换器将接收的数据转换成多个接收的数据流，并从接收的数据中移除CP。对接收的数据流执行离散付里叶变换，并进行均衡。去扩展器对均衡器的输出进行解扩以恢复发送的数据。

4. 发明授权

US08340153B2 Hybrid orthogonal frequency division multiple access WTRU and method 有权
标题翻译：混合正交频分多址WTRU和方法
公开(公告)号：US08340153B2
公开(公告)日：2012-12-25
申请号：US13236147
申请日：2011-09-19
申请人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
发明人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
IPC分类号： H04B1/00
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 are disclosed. 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：公开了一种混合正交频分多址（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。

5. 发明申请

US20110280210A1 METHOD AND APPARATUS FOR ACCESSING AN UPLINK RANDOM ACCESS CHANNEL IN A SINGULAR CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 有权
标题翻译：用于在单载波频分多址接入系统中接入上行随机接入信道的方法和装置
公开(公告)号：US20110280210A1
公开(公告)日：2011-11-17
申请号：US13192890
申请日：2011-07-28
申请人： Guodong Zhang , Jung-Lin Pan , Yingming Tsai
发明人： Guodong Zhang , Jung-Lin Pan , Yingming Tsai
IPC分类号： H04W72/04
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。

6. 发明授权

US07715460B2 Hybrid orthogonal frequency division multiple access system and method 有权
标题翻译：混合正交频分多址系统及方法
公开(公告)号：US07715460B2
公开(公告)日：2010-05-11
申请号：US11406878
申请日：2006-04-19
申请人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
发明人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
IPC分类号： H04B1/00 , H04K1/10
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) system including a transmitter and a receiver is disclosed. The transmitter includes a first spread OFDMA subassembly, a first non-spread OFDMA subassembly and a first common subassembly. The first spread OFDMA subassembly spreads input data and maps the spread data to a first group of subcarriers. The first non-spread OFDMA subassembly maps input data to a second group of subcarriers. The first common subassembly transmits the input data mapped to the first and second group of subcarriers using OFDMA. The receiver includes a second spread OFDMA subassembly, a second non-spread OFDMA subassembly and a second common subassembly. The second common subassembly processes received data to recover data mapped to the subcarriers using OFDMA. The second spread OFDMA subassembly recovers the first input data by separating user data in a code domain and the second non-spread OFDMA subassembly recovers the second input data.
摘要翻译：公开了一种包括发射机和接收机的混合正交频分多址（OFDMA）系统。发射机包括第一扩展OFDMA子组件，第一非扩展OFDMA子组件和第一公共子组件。第一扩频OFDMA子组件扩展输入数据并将扩展数据映射到第一组子载波。第一非扩展OFDMA子组件将输入数据映射到第二组副载波。第一公共子组件使用OFDMA发送映射到第一和第二组子载波的输入数据。接收机包括第二扩展OFDMA子组件，第二非扩展OFDMA子组件和第二公共子组件。第二个公共子组件使用OFDMA来处理接收的数据以恢复映射到子载波的数据。第二扩频OFDMA子组件通过分离码域中的用户数据并且第二非扩展OFDMA子组件恢复第二输入数据来恢复第一输入数据。

7. 发明申请

US20080130484A1 TRANSMIT DIVERSITY OF BROADCAST CHANNEL IN OFDMA BASED EVOLVED UTRA 审中-公开
标题翻译：基于OFDMA的演化UTRA中广播信道的传输多样性
公开(公告)号：US20080130484A1
公开(公告)日：2008-06-05
申请号：US11930440
申请日：2007-10-31
申请人： Guodong Zhang , Kyle Jung-Lin Pan , Robert Lind Olesen , Allan Yingming Tsai
发明人： Guodong Zhang , Kyle Jung-Lin Pan , Robert Lind Olesen , Allan Yingming Tsai
IPC分类号： H04J11/00
CPC分类号： H04L1/0606 , H04B7/068 , H04J11/0073 , H04L1/08 , H04W88/08
摘要： In a communications system with a wireless transmit/receive unit and a cell, a method for transmission of a broadcast channel is presented. The method contains the steps of generating a broadcast signal, processing said broadcast signal according to a modified spatial frequency block coding scheme, and broadcasting the processed signal to a wireless transmit/receive unit.
摘要翻译：在具有无线发射/接收单元和小区的通信系统中，呈现广播信道的传输方法。该方法包括产生广播信号的步骤，根据修改的空间频率块编码方案处理所述广播信号，并将处理的信号广播到无线发射/接收单元。

8. 发明授权

US08503356B2 Wireless communication method and apparatus for selecting cells in an OFDMA system 失效
标题翻译：用于在OFDMA系统中选择小区的无线通信方法和装置
公开(公告)号：US08503356B2
公开(公告)日：2013-08-06
申请号：US11478816
申请日：2006-06-30
申请人： Guodong Zhang , Jung-Lin Pan , Yingming Tsai
发明人： Guodong Zhang , Jung-Lin Pan , Yingming Tsai
IPC分类号： H04W80/04 , H04W36/18 , H04W88/06 , H04W36/30 , H04B1/707 , H04B1/08
CPC分类号： H04L27/2601 , H04B7/26 , H04W36/08 , H04W36/30
摘要： A wireless communication method and apparatus for selecting cells in an orthogonal frequency division multiple access (OFDMA) system are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink path loss of a current serving cell and at least one other cell. The WTRU determines whether a path loss difference between the serving cell and the other cell is below a threshold. If the path loss difference is below the threshold, the WTRU measures a channel quality indicator (CQI) for each of the plurality of subcarrier blocks in the downlink of the current serving cell and the other cell, respectively. The WTRU reports the CQIs to a serving Node-B which selects a new cell based on the CQIs. Alternatively, a centralized access gateway (aGW) may select the new serving cell/Node-B, or the cell selection decision made by the serving Node-B may be forwarded to another Node-B via the centralized aGW.
摘要翻译：公开了一种用于在正交频分多址（OFDMA）系统中选择小区的无线通信方法和装置。无线发射/接收单元（WTRU）测量当前服务小区和至少一个其他小区的下行链路路径损耗。 WTRU确定服务小区和另一小区之间的路径损耗差是否低于阈值。如果路径损耗差低于阈值，则WTRU分别针对当前服务小区和另一个小区的下行链路中的多个子载波块中的每一个分别测量信道质量指示符（CQI）。 WTRU向基于CQI选择新小区的服务节点B报告CQI。或者，集中接入网关（aGW）可以选择新的服务小区/节点B，或者由服务节点B做出的小区选择决定可以经由集中式aGW被转发到另一节点B。

9. 发明申请

US20100246377A1 MIMO BEAMFORMING-BASED SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 失效
标题翻译：基于MIMO射频的单载波频分多址接入系统
公开(公告)号：US20100246377A1
公开(公告)日：2010-09-30
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。

10. 发明授权

US07548577B2 Frequency domain joint detection for wireless communication systems 有权
标题翻译：无线通信系统的频域联合检测
公开(公告)号：US07548577B2
公开(公告)日：2009-06-16
申请号：US11441881
申请日：2006-05-26
申请人： Jung-Lin Pan , Yingming Tsai , Guodong Zhang
发明人： Jung-Lin Pan , Yingming Tsai , Guodong Zhang
IPC分类号： H04B1/00
CPC分类号： H04L25/03159 , H04B1/71055 , H04L5/026 , H04L25/03331 , H04L2025/03414
摘要： A method and apparatus for frequency domain joint detection for multicarrier code division multiple access (MC-CDMA) and spread orthogonal frequency division multiple access (OFDMA) systems are disclosed. The apparatus includes a receiver having a frequency domain joint detector, whereby channel distortion and data symbols are jointly equalized and detected by the frequency domain joint detector in a frequency domain. Users of the data symbols may be assigned all or a subset of subcarriers with variable spreading factor codes. Alternatively, the subset of subcarriers may be further divided into multiple partitions and the frequency domain joint detection may be performed on the subcarriers in the partition. The users are assigned a spreading code, which may be a Hadamard code, a spread complex quadratic sequence (SCQS) code or any type of orthogonal spreading code.
摘要翻译：公开了一种用于多载波码分多址（MC-CDMA）和扩频正交频分多址（OFDMA）系统的频域联合检测的方法和装置。该装置包括具有频域联合检测器的接收机，由此频域联合检测器在频域中共同平衡和检测信道失真和数据符号。数据符号的用户可以分配具有可变扩展因子代码的全部或一部分子载波。或者，子载波的子集可以进一步划分为多个分区，并且可以在分区中的子载波上执行频域联合检测。用户被分配一个扩展码，其可以是Hadamard码，扩展复数二次序列（SCQS）码或任何类型的正交扩展码。

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