专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20090279631A1 SYSTEMS AND METHODS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATIONS SYSTEMS 有权
标题翻译：多输入多输出通信系统的系统与方法
公开(公告)号：US20090279631A1
公开(公告)日：2009-11-12
申请号：US12432309
申请日：2009-04-29
申请人： Cheng-Ming CHEN , Jen-Yuan Hsu , Pang-An Ting , Chih-Yu Chen
发明人： Cheng-Ming CHEN , Jen-Yuan Hsu , Pang-An Ting , Chih-Yu Chen
IPC分类号： H04L1/02
CPC分类号： H04L1/1819 , H04L1/0631 , H04L1/0643 , H04L1/1893
摘要： In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.
摘要翻译：在多输入多输出（MIMO）无线通信系统中，提供了一种用于纠错的方法。该方法包括以初始MIMO格式接收原始信号，检测原始信号中的错误，以及通知发送机在原始信号中检测到的错误。该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号，该新的重发信号至少包括原始信号的编码比特的一部分。该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

52. 发明申请

US20090279623A1 SYSTEM AND METHOD FOR PILOT DESIGN 有权
标题翻译：引导设计的系统和方法
公开(公告)号：US20090279623A1
公开(公告)日：2009-11-12
申请号：US12431046
申请日：2009-04-28
申请人： Jia-Hao Wu , Lai-Huei Wang , Yu-Tao Hsieh , Pang-An Ting
发明人： Jia-Hao Wu , Lai-Huei Wang , Yu-Tao Hsieh , Pang-An Ting
IPC分类号： H04J11/00 , H04L27/28
CPC分类号： H04L5/0048 , H04L5/0023 , H04L25/0204 , H04L25/0226 , H04L25/023 , H04L27/2613
摘要： A method for generating a pilot pattern for data to be transmitted in an orthogonal frequency-division multiplexing (OFDM) based communication system includes: allocating pilot symbols for a plurality of data streams to form a plurality of pilot clusters in the pilot pattern, wherein each of the pilot clusters includes ones of the pilot symbols, the ones of the pilot symbols being for respectively different ones of the data streams.
摘要翻译：一种用于在基于正交频分复用（OFDM）的通信系统中生成要发送的数据的导频模式的方法包括：为多个数据流分配导频符号以在导频模式中形成多个导频簇，其中每个导频簇包括导频符号中的一个，导频符号中的一个用于分别不同的数据流。

53. 发明申请

US20090274036A1 HARQ BASED ICI CODING SCHEME 审中-公开
标题翻译：基于HARQ的ICI编码方案
公开(公告)号：US20090274036A1
公开(公告)日：2009-11-05
申请号：US12247708
申请日：2008-10-08
申请人： Hsin-Piao LIN , Rong Terng JUANG , Pang-An TING , Chien Yu KAO
发明人： Hsin-Piao LIN , Rong Terng JUANG , Pang-An TING , Chien Yu KAO
IPC分类号： H04J11/00
CPC分类号： H04L25/03343 , H04L1/1819 , H04L1/1845
摘要： Method and apparatus for transmitting data in an OFDM communication system, the method including transmitting over a channel, an original data packet that includes original data, the original data packet including at least one modulated data symbol encoded onto at least one sub-carrier using a first coding scheme. The method further includes transmitting a retransmitted data packet corresponding to the original data packet in response to a non-acknowledgement (NACK), the retransmitted data packet including a copy of the original data packet wherein the at least one modulated data symbol is encoded onto the at least one sub-carrier using a second coding scheme.
摘要翻译：用于在OFDM通信系统中发送数据的方法和装置，所述方法包括：通过信道发送包括原始数据的原始数据分组，所述原始数据分组包括至少一个被编码到至少一个子载波上的调制数据符号，使用第一编码方案所述方法还包括：响应于非确认（NACK），发送对应于原始数据分组的重发数据分组，所述重传数据分组包括原始数据分组的副本，其中至少一个调制数据符号被编码到使用第二编码方案的至少一个子载波。

54. 发明申请

US20090092194A1 ADAPTIVE PILOT DESIGN FOR MOBILE SYSTEM 有权
标题翻译：自适应导航设计用于移动系统
公开(公告)号：US20090092194A1
公开(公告)日：2009-04-09
申请号：US12204422
申请日：2008-09-04
申请人： Lai-Huei Wang , Pang-An Ting , Jia-Hao Wu , Jiun-Yo Lai
发明人： Lai-Huei Wang , Pang-An Ting , Jia-Hao Wu , Jiun-Yo Lai
IPC分类号： H04L27/28
CPC分类号： H04L5/0051 , H04L5/0007 , H04L5/006 , H04L5/0062 , H04L5/0085 , H04L25/0216 , H04L25/0224
摘要： A method, and device implementing the method, for adaptively allocating pilot signals in a wireless communication system. The method includes receiving channel data, including channel length (L) data, inter-carrier interference power (PICI) data, coherence time (CT) data, and a number of subcarriers (N). The method further includes selecting, when L is greater than a first channel length threshold (LTH1), a first number of pilot signals between a minimum value of L and a maximum number of pilot signals NP,MAX, wherein the first number of pilot signals NP are equally spaced in time according to the CT data, and equally spaced in frequency. Further, the method includes selecting, when L is less than LTH1 and PICI is less than a power threshold (PTH), a second number of pilot signals such that the second number of pilot signals is between the minimum value of L and NP,MAX, wherein the second number of pilot signals are equally spaced in time according to the CT data, and equally spaced in frequency. Finally, the method includes selecting, when L is less than LTH1 and PICI is greater than PTH, a third number of pilot signals such that the third number of pilot signals is equal to n times L (nL), wherein n is an integer, the third number of pilot signals being equally spaced in time according to the CT data, and allocated according to a cluster(n) clustered pilot scheme with a cluster size equal to n, the n-sized clusters being clustered in frequency.
摘要翻译：一种实现该方法的方法和装置，用于在无线通信系统中自适应地分配导频信号。该方法包括接收信道数据，包括信道长度（L）数据，载波间干扰功率（PICI）数据，相干时间（CT）数据和多个副载波（N）。该方法还包括：当L大于第一信道长度阈值（LTH1）时，选择最小值L和最大数量导频信号NP，MAX之间的第一数量的导频信号，其中第一数量的导频信号 NP根据CT数据在时间上等间隔，频率相等。此外，该方法包括当L小于LTH1且PICI小于功率阈值（PTH）时选择第二数量的导频信号，使得第二数量的导频信号在L和NP的最小值之间，MAX ，其中所述第二数量的导频信号根据所述CT数据在时间上等间隔，并且频率等间隔。最后，该方法包括当L小于LTH1且PICI大于PTH时选择第三数量的导频信号，使得第三数量的导频信号等于n倍L（nL），其中n是整数，第三数量的导频信号根据CT数据在时间上等间隔，并且根据簇大小等于n的簇（n）聚簇导频方案分配，n个大小的簇以频率聚类。

55. 发明申请

US20080310525A1 FFT-size detector and FFT-size detection method and cell search apparatus and cell search method in cellular system 有权
标题翻译： FFT大小检测器和FFT大小检测方法以及蜂窝系统中的小区搜索装置和小区搜索方法
公开(公告)号：US20080310525A1
公开(公告)日：2008-12-18
申请号：US11812046
申请日：2007-06-14
申请人： Huei-Jin Lin , Wei Ping Chuang , Jiun-Yo Lai , Pang-An Ting
发明人： Huei-Jin Lin , Wei Ping Chuang , Jiun-Yo Lai , Pang-An Ting
IPC分类号： H04L27/28
CPC分类号： H04L27/2655 , H04J11/0069 , H04L27/2666
摘要： An apparatus and method for cell acquisition and downlink synchronization acquisition in an OFDMA wireless communication system are provided. In an SS apparatus in a broadband wireless communication system, a preamble subcarrier acquirer extracts subcarrier values having a preamble code from an FFT signal. A multiplier code-demodulates the subcarrier values by multiplying the subcarrier values by a preamble code. A correlator calculates a plurality of differential correlations in the code-demodulated signal. An IFFT processor IFFT-processes the differential correlations by mapping the differential correlations to subcarriers. A maximum value detector detects a maximum value from the IFFT signal and calculates a timing offset using an IFFT output index having the maximum value.
摘要翻译：提供了一种在OFDMA无线通信系统中用于小区获取和下行链路同步捕获的装置和方法。在宽带无线通信系统的SS装置中，前导子载波采集器从FFT信号中提取具有前导码的子载波值。乘法器通过将子载波值乘以前导码来解码副载波值。相关器在码解调信号中计算多个差分相关。 IFFT处理器IFFT通过将差分相关映射到子载波来处理差分相关。最大值检测器从IFFT信号检测最大值，并使用具有最大值的IFFT输出索引来计算定时偏移。

56. 发明授权

US09178590B2 Channel information feedback method and wireless communication device using the same 有权
标题翻译：频道信息反馈方法和无线通信装置使用相同
公开(公告)号：US09178590B2
公开(公告)日：2015-11-03
申请号：US13338207
申请日：2011-12-27
申请人： Ping-Heng Kuo , Hsiang-Tsung Kung , Pang-An Ting
发明人： Ping-Heng Kuo , Hsiang-Tsung Kung , Pang-An Ting
IPC分类号： H04B1/38 , H04L5/16 , H04B7/04 , H04L25/03 , H04B7/06
CPC分类号： H04B7/0478 , H04B7/0617 , H04B7/0663 , H04L25/03949
摘要： A channel information feedback method for multi-antenna system, and a wireless communication device using the same method are provided. The proposed method could reduce feedback overhead for multiple-input multiple-output (MIMO) wireless channel information, and is based on compressive sensing technique. Prior to sending back channel information, a receiver estimates the channel and multiplies the vectorized channel with a random matrix to generate compressed feedback content. Upon receiving the compressed feedback content at a transmitter, the channel information could be restored with signal recovery algorithms of compressive sensing technique. In the other embodiment, the proposed method further adaptively adjusts compression ratio of the compressed feedback content in accordance to the prevailing channel quality. Further, for slow-varying MIMO channels, there is proposed another channel information feedback method which switches between a fixed sparcifying-basis and a signal-dependent sparcifying-basis.
摘要翻译：提供了一种用于多天线系统的信道信息反馈方法和使用相同方法的无线通信装置。所提出的方法可以减少多输入多输出（MIMO）无线信道信息的反馈开销，并且基于压缩感测技术。在发送信道信息之前，接收机估计信道并将矢量化信道与随机矩阵相乘以产生压缩反馈内容。一旦在发射机处接收到压缩的反馈内容，可以利用压缩感测技术的信号恢复算法恢复信道信息。在另一实施例中，所提出的方法进一步根据主流信道质量自适应地调整压缩反馈内容的压缩比。此外，对于慢速变化的MIMO信道，提出了另一种信道信息反馈方法，其以固定的基于稀疏和基于信号的稀疏为基础进行切换。

57. 发明授权

US08638876B2 Systems and methods for providing preamble codes and generating preamble signals in wireless communications 有权
标题翻译：用于在无线通信中提供前导码并产生前导信号的系统和方法
公开(公告)号：US08638876B2
公开(公告)日：2014-01-28
申请号：US12976696
申请日：2010-12-22
申请人： Chao-Wang Huang , Cheng-Ming Chen , Pang-An Ting , Jen-Yuan Hsu , Yu-Tao Hsieh
发明人： Chao-Wang Huang , Cheng-Ming Chen , Pang-An Ting , Jen-Yuan Hsu , Yu-Tao Hsieh
IPC分类号： H04L27/00
CPC分类号： H04L27/2607 , H04L1/20 , H04L5/0023 , H04L5/0048 , H04L27/2613 , H04L27/2662
摘要： A method for a user terminal to generate a preamble signal in a wireless communication system, the method including: generating an orthogonal sequence as a first sequence; performing cyclic shift on an antipodal version of the orthogonal sequence to generate a second sequence; and combining the first sequence and the second sequence to generate the preamble signal.
摘要翻译：一种用户终端在无线通信系统中生成前同步信号的方法，所述方法包括：产生正交序列作为第一序列; 在正交序列的对映体版本上执行循环移位以产生第二序列; 以及组合第一序列和第二序列以产生前导信号。

58. 发明授权

US08526516B2 Systems and methods for multiple-input multiple-output communications systems 有权
标题翻译：多输入多输出通信系统的系统和方法
公开(公告)号：US08526516B2
公开(公告)日：2013-09-03
申请号：US12432309
申请日：2009-04-29
申请人： Cheng-Ming Chen , Jen-Yuan Hsu , Pang-An Ting , Chih-Yu Chen
发明人： Cheng-Ming Chen , Jen-Yuan Hsu , Pang-An Ting , Chih-Yu Chen
IPC分类号： H04L27/28
CPC分类号： H04L1/1819 , H04L1/0631 , H04L1/0643 , H04L1/1893
摘要： In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.
摘要翻译：在多输入多输出（MIMO）无线通信系统中，提供了一种用于纠错的方法。该方法包括以初始MIMO格式接收原始信号，检测原始信号中的错误，以及通知发送机在原始信号中检测到的错误。该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号，该新的重发信号至少包括原始信号的编码比特的一部分。该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

59. 发明授权

US08406279B2 System and method for pilot design for data transmitted in wireless networks 有权
标题翻译：用于在无线网络中传输的数据的导频设计的系统和方法
公开(公告)号：US08406279B2
公开(公告)日：2013-03-26
申请号：US12212054
申请日：2008-09-17
申请人： Yu-Tao Hsieh , Jen-Yuan Hsu , Pang-An Ting , Lai-Huei Wang
发明人： Yu-Tao Hsieh , Jen-Yuan Hsu , Pang-An Ting , Lai-Huei Wang
IPC分类号： H04B1/00 , H04K1/10 , H04W4/00
CPC分类号： H04L27/2613 , H04L5/0051
摘要： A method for pilot design for data to be transmitted by an orthogonal frequency-division multiplexing (OFDM) based communication system, the data being represented by a plurality of OFDM symbols. The method includes allocating pilot symbols for a data stream to be included in ones of the OFDM symbols; and performing a frequency shift on at least one of the OFDM symbols, to reduce frequency distance disparities among the pilot symbols.
摘要翻译：一种用于通过基于正交频分复用（OFDM）的通信系统发送的数据的导频设计的方法，所述数据由多个OFDM符号表示。该方法包括为要被包括在OFDM符号之一中的数据流分配导频符号; 并且对至少一个OFDM符号执行频移，以减少导频符号之间的频率距离差异。

60. 发明授权

US08385442B2 Transmitter and the method therefor 有权
标题翻译：发射机及其方法
公开(公告)号：US08385442B2
公开(公告)日：2013-02-26
申请号：US12643042
申请日：2009-12-21
申请人： Jia-Hao Wu , Yun-Yi Shih , Pang-An Ting , Ming-Che Lin
发明人： Jia-Hao Wu , Yun-Yi Shih , Pang-An Ting , Ming-Che Lin
IPC分类号： H04L27/28
CPC分类号： H04L27/262
摘要： A transmitter and the method therefor are provided. The transmitter is applied in an orthogonal frequency division multiplexing (OFDM) based or other multicarrier communication systems. The transmitter uses N sub-carriers. Among the N sub-carriers, L sub-carriers (or tones) are reserved for PAPR reduction. L is less than N. The method includes the following steps. Original frequency domain data symbols are generated and fed into the reserved-tone symbol generation unit. The reserved-tone symbols are generated by using pure frequency domain signal processing. Then the reserved-tone symbols are combined with original data symbols to generate combined PAPR reduction signal. The resultant PAPR reduction signal can be fed into reserved-tone symbol generation unit iteratively to obtain updated reserved-tone symbols. For proper iterations, the original data symbols combined with L frequency domain reserved-tone symbols will result in lower PAPR transmit signal.
摘要翻译：提供了一种发射机及其方法。发射机应用于基于正交频分复用（OFDM）或其他多载波通信系统中。发射机使用N个子载波。在N个子载波中，L个子载波（或音调）被保留用于减少PAPR。 L小于N.该方法包括以下步骤。生成原始频域数据符号并将其馈送到保留音符号生成单元。通过使用纯频域信号处理来生成保留音符号。然后将保留音符号与原始数据符号组合以产生组合的PAPR减少信号。所得到的PAPR降低信号可以迭代地馈送到保留音符号生成单元中以获得更新的保留音符号。对于正确的迭代，与L个频域保留音符号组合的原始数据符号将导致较低的PAPR发送信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式