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1. 发明申请

US20120082252A1 Method for Estimating Time-Varying and Frequency-Selective Channels 失效
标题翻译：估计时变和频率选择通道的方法
公开(公告)号：US20120082252A1
公开(公告)日：2012-04-05
申请号：US12894994
申请日：2010-09-30
申请人： Ramesh Annavajjala , Hobin Kim
发明人： Ramesh Annavajjala , Hobin Kim
IPC分类号： H04L27/28
CPC分类号： H04L5/0048 , H04L5/0007 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L25/0228 , H04L25/0242
摘要： Time-varying and frequency-selective channels in an orthogonal frequency division multiplexing (OFDM) network are estimated by first storing, in a buffer at a receiver, a received signal corresponding to a set of pilot tones of a set of OFDM symbols, wherein the pilot tones are predetermined and inserted in frequency subcarriers and time slots of the OFDM symbol. A covariance matrix of the received signal is estimated. A diagonal matrix is estimated based on the covariance matrix and a variance of noise in the received signal. The diagonal matrix indicates delays of non-zero paths in a time domain. A channel impulse response (CIR) for each OFDM symbol is estimated using the diagonal matrix, and the received signal. Then, the CIR is transformed to the frequency domain to obtain the channel frequency response (CFR).
摘要翻译：通过首先在接收机的缓冲器中存储对应于一组OFDM符号的一组导频音调的接收信号来估计正交频分复用（OFDM）网络中的时变和频率选择性信道，其中，导频音被预先确定并插入在OFDM符号的频率子载波和时隙中。估计接收信号的协方差矩阵。基于协方差矩阵和接收信号中的噪声方差来估计对角矩阵。对角矩阵表示时域中非零路径的延迟。使用对角矩阵和接收信号来估计每个OFDM符号的信道脉冲响应（CIR）。然后，将CIR转换到频域以获得信道频率响应（CFR）。

2. 发明授权

US08509330B2 Method for estimating time-varying and frequency-selective channels 失效
标题翻译：估计时变频率选择频道的方法
公开(公告)号：US08509330B2
公开(公告)日：2013-08-13
申请号：US12894994
申请日：2010-09-30
申请人： Ramesh Annavajjala , Hobin Kim
发明人： Ramesh Annavajjala , Hobin Kim
IPC分类号： H04K1/10
CPC分类号： H04L5/0048 , H04L5/0007 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L25/0228 , H04L25/0242
摘要： Time-varying and frequency-selective channels in an orthogonal frequency division multiplexing (OFDM) network are estimated by first storing, in a buffer at a receiver, a received signal corresponding to a set of pilot tones of a set of OFDM symbols. The pilot tones are predetermined and inserted in frequency subcarriers and time slots of the OFDM symbol. A covariance matrix of the received signal is estimated. A diagonal matrix is estimated based on the covariance matrix and a variance of noise in the received signal. The diagonal matrix indicates delays of non-zero paths in a time domain. A channel impulse response (CIR) for each OFDM symbol is estimated using the diagonal matrix, and the received signal. Then, the CIR is transformed to the frequency domain to obtain the channel frequency response (CFR).
摘要翻译：通过首先在接收机的缓冲器中存储对应于一组OFDM符号的一组导频音调的接收信号来估计正交频分复用（OFDM）网络中的时变和频率选择信道。导频音被预先确定并插入在OFDM符号的频率子载波和时隙中。估计接收信号的协方差矩阵。基于协方差矩阵和接收信号中的噪声方差来估计对角矩阵。对角矩阵表示时域中非零路径的延迟。使用对角矩阵和接收信号来估计每个OFDM符号的信道脉冲响应（CIR）。然后，将CIR转换到频域以获得信道频率响应（CFR）。

3. 发明授权

US08358630B2 Method of transmitting at least one sub-packet based on feedback information in a wireless communication system 有权
标题翻译：一种在无线通信系统中基于反馈信息发送至少一个子分组的方法
公开(公告)号：US08358630B2
公开(公告)日：2013-01-22
申请号：US11671437
申请日：2007-02-05
申请人： Sang G. Kim , Shu Wang , Young Cheul Yoon , Li-Hsiang Sun , Soonyil Kwon , Suk Woo Lee , Hobin Kim
发明人： Sang G. Kim , Shu Wang , Young Cheul Yoon , Li-Hsiang Sun , Soonyil Kwon , Suk Woo Lee , Hobin Kim
IPC分类号： H04W4/00
CPC分类号： H04B7/0647 , H04B7/0491 , H04B7/061 , H04B7/0632 , H04B7/0641 , H04B7/12 , H04B17/24 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04L1/06 , H04L1/1812 , H04L1/1893 , H04L47/10 , H04W52/08
摘要： A method of transmitting subsequent sub-packets in a wireless communication system using a hybrid automatic request (HARQ) technique is disclosed. The method includes receiving feedback information from at least one receiving end, transmitting a transmit packet via at least one overhead channel, wherein the transmit packet includes information on carrier and antenna combination selected for subsequent transmission, and transmitting at least one sub-packet according to the selected carrier and antenna combination.
摘要翻译：公开了一种使用混合自动请求（HARQ）技术在无线通信系统中发送后续子分组的方法。该方法包括从至少一个接收端接收反馈信息，经由至少一个开销信道发送发送分组，其中发送分组包括关于选择用于后续发送的载波和天线组合的信息，以及根据所选择的载波和天线组合。

4. 发明授权

US07944808B2 OFDM symbol design for different channel conditions and for backward compatibility with 1xEV-DO and NxEV-DO 有权
标题翻译： OFDM符号设计用于不同的信道条件，并与1xEV-DO和NxEV-DO的向后兼容性
公开(公告)号：US07944808B2
公开(公告)日：2011-05-17
申请号：US11690724
申请日：2007-03-23
申请人： Young C. Yoon , Li-Hsiang Sun , Sang G. Kim , Hobin Kim
发明人： Young C. Yoon , Li-Hsiang Sun , Sang G. Kim , Hobin Kim
IPC分类号： H04J11/00
CPC分类号： H04L27/2602 , H04B1/707 , H04L5/0016 , H04L5/0048 , H04L5/006 , H04L25/0216 , H04L27/2605
摘要： A method for generating a transmission slot includes receiving a transmission slot that includes a plurality of data regions and a plurality of control regions, in which each of the data regions include digital spread spectrum data. The method further includes substituting each of the plurality of data regions with at least one OFDM symbol having variable duration, in which each of the at least one OFDM symbol has a cyclic prefix extension (CPE).
摘要翻译：一种用于产生传输时隙的方法包括接收包括多个数据区和多个控制区的传输时隙，其中每个数据区包括数字扩频数据。该方法还包括用具有可变持续时间的至少一个OFDM符号代替多个数据区中的每一个，其中至少一个OFDM符号中的每一个具有循环前缀扩展（CPE）。

5. 发明申请

US20080089281A1 METHOD OF EFFICIENTLY UTILIZING RESOURCES IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中有效利用资源的方法
公开(公告)号：US20080089281A1
公开(公告)日：2008-04-17
申请号：US11767446
申请日：2007-06-22
申请人： Young Yoon , Li-Hsiang Sun , Sang Kim , Shu Wang , Suk Lee , Hobin Kim
发明人： Young Yoon , Li-Hsiang Sun , Sang Kim , Shu Wang , Suk Lee , Hobin Kim
IPC分类号： H04Q7/00
CPC分类号： H04W72/042
摘要： A method of transmitting data via a control channel in a wireless communication system is disclosed. More specifically, the method includes transmitting a message including information on which control channel resources are used or unused, and transmitting data via the unused control channel which is allocated to at least one user, wherein the data is an added portion related to at least one sub-packet transmitted on a data channel
摘要翻译：公开了一种通过无线通信系统中的控制信道发送数据的方法。更具体地，该方法包括发送包括关于使用或未使用哪个控制信道资源的信息的消息，以及经由未分配给至少一个用户的未使用的控制信道发送数据，其中该数据是与至少一个在数据信道上发送的子包

6. 发明授权

US07583984B2 Method of providing notification for battery power conservation in a wireless system 有权
标题翻译：在无线系统中提供电池节电通知的方法
公开(公告)号：US07583984B2
公开(公告)日：2009-09-01
申请号：US11464150
申请日：2006-08-11
申请人： Li-Hsiang Sun , Suk Woo Lee , Young Cheul Yoon , Sang Gook Kim , Shu Wang , Hobin Kim
发明人： Li-Hsiang Sun , Suk Woo Lee , Young Cheul Yoon , Sang Gook Kim , Shu Wang , Hobin Kim
IPC分类号： H04B1/16 , H04M1/725
CPC分类号： H04W52/0235 , G06F1/3228 , H04W52/0229 , H04W52/0277 , Y02D70/24 , Y02D70/25
摘要： A method of executing to battery power consumption between an access terminal (AT) and an access network (AN) in a wireless communication system is disclosed. More specifically, the method includes transmitting a notification message to the AN, receiving a confirmation message from the AN, and entering the power-saving mode according to the determined power saving mode. Here, the notification message includes at least one of battery life information and a power-saving mode request, and the confirmation message includes a determined power saving mode which is based on the at least one of battery life information and the power-saving mode request.
摘要翻译：公开了一种执行无线通信系统中的接入终端（AT）和接入网（AN）之间的电力消耗的方法。更具体地，该方法包括向AN发送通知消息，从AN接收确认消息，并根据所确定的功率节省模式进入功率节省模式。这里，通知消息包括电池寿命信息和省电模式请求中的至少一个，并且确认消息包括基于电池寿命信息和省电模式请求中的至少一个的确定的省电模式。

7. 发明申请

US20080084841A1 METHOD OF UTILIZING RESOURCES EFFICIENTLY IN A REVERSE LINK TRANSMISSION 有权
标题翻译：在逆向链路传输中有效利用资源的方法
公开(公告)号：US20080084841A1
公开(公告)日：2008-04-10
申请号：US11774544
申请日：2007-07-06
申请人： Sang G. Kim , Young Yoon , Li-Hsiang Sun , Suk Lee , Hobin Kim , Shu Wang
发明人： Sang G. Kim , Young Yoon , Li-Hsiang Sun , Suk Lee , Hobin Kim , Shu Wang
IPC分类号： H04Q7/00 , H04L23/02
CPC分类号： H04W72/1268 , H04L1/0002 , H04L1/0007 , H04L1/0009 , H04L1/0026 , H04L1/0078 , H04L5/0007 , H04W72/0446
摘要： A method of transmitting data by at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes ceasing all transmissions by the at least one AT during a duration corresponding to a duration used by an access node (AN) to transmit a superframe preamble, wherein the superframe comprises a plurality of physical frames.
摘要翻译：公开了一种在无线通信系统中由至少一个接入终端（AT）发送数据的方法。更具体地说，该方法包括在对应于由接入节点（AN）用于发送超帧前导码的持续时间的持续时间内停止所述至少一个AT的所有传输，其中超帧包括多个物理帧。

8. 发明授权

US09008069B2 Method of utilizing resources efficiently in a reverse link transmission 有权
标题翻译：在反向链路传输中有效利用资源的方法
公开(公告)号：US09008069B2
公开(公告)日：2015-04-14
申请号：US11774544
申请日：2007-07-06
申请人： Sang G. Kim , Young C. Yoon , Li-Hsiang Sun , Suk Woo Lee , Hobin Kim , Shu Wang
发明人： Sang G. Kim , Young C. Yoon , Li-Hsiang Sun , Suk Woo Lee , Hobin Kim , Shu Wang
IPC分类号： H04W28/00 , H04W72/12 , H04L1/00 , H04L5/00
CPC分类号： H04W72/1268 , H04L1/0002 , H04L1/0007 , H04L1/0009 , H04L1/0026 , H04L1/0078 , H04L5/0007 , H04W72/0446
摘要： A method of transmitting data by at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes ceasing all transmissions by the at least one AT during a duration corresponding to a duration used by an access node (AN) to transmit a superframe preamble, wherein the superframe comprises a plurality of physical frames.
摘要翻译：公开了一种在无线通信系统中由至少一个接入终端（AT）发送数据的方法。更具体地说，该方法包括在对应于由接入节点（AN）用于发送超帧前导码的持续时间的持续时间内停止所述至少一个AT的所有传输，其中超帧包括多个物理帧。

9. 发明授权

US08379606B2 Access probe randomization for wireless communication system 有权
标题翻译：无线通信系统接入探测随机化
公开(公告)号：US08379606B2
公开(公告)日：2013-02-19
申请号：US11534520
申请日：2006-09-22
申请人： Sang G Kim , Shu Wang , Young C Yoon , Suk Woo Lee , Li-Hsiang Sun , Hobin Kim
发明人： Sang G Kim , Shu Wang , Young C Yoon , Suk Woo Lee , Li-Hsiang Sun , Hobin Kim
IPC分类号： H04J3/00 , H04L12/413
CPC分类号： H04W74/085 , H04W74/0833
摘要： A method and apparatus for randomizing access probes from co-located mobile terminals in order to reduce collisions is provided. By each mobile terminal or group of mobile terminals computing a random delay between a minimum delay value and a maximum delay value and using the random delay to delay the starting time of access probes, collisions between access probes from different mobile terminals may be reduced.
摘要翻译：提供了一种从同位移动终端随机化接入探针以减少冲突的方法和装置。通过每个移动终端或移动终端组计算最小延迟值和最大延迟值之间的随机延迟，并且使用随机延迟来延迟接入探测的开始时间，可以减少来自不同移动终端的接入探测之间的冲突。

10. 发明授权

US08274927B2 Method for performance enhancement in a cell edge region 有权
标题翻译：细胞边缘区域的性能增强方法
公开(公告)号：US08274927B2
公开(公告)日：2012-09-25
申请号：US11671432
申请日：2007-02-05
申请人： Sang Gook Kim , Young C. Yoon , Soonyil Kwon , Shu Wang , Suk Woo Lee , Li-Hsiang Sun , Hobin Kim
发明人： Sang Gook Kim , Young C. Yoon , Soonyil Kwon , Shu Wang , Suk Woo Lee , Li-Hsiang Sun , Hobin Kim
IPC分类号： H04L1/00
CPC分类号： H04L1/1812 , H04B7/022 , H04L1/0001 , H04L1/06 , H04L1/1819 , H04L1/1893 , H04L5/023 , H04L27/2608 , H04L2001/0092 , H04L2001/0096 , H04W36/18 , H04W52/04
摘要： A method for receiving data at different frequencies includes receiving a first transmission packet including data at a first carrier frequency, and receiving a second transmission packet comprising data at a second carrier frequency. The method further includes maintaining communication with transmission entities which transmit the first and second transmission packets, and identifying reception quality of the first and second transmission packets. In addition, a method for retransmitting subpackets includes transmitting a first subpacket of a packet transmission from at least two transmitting entities. Upon receiving a non-acknowledgement NACK generated responsive to the first subpacket, the method further includes alternating transmission of subsequent subpackets from different transmitting entities. Upon receiving an acknowledgement ACK generated responsive to any subpackets of the packet transmission, the method further includes transmitting a first subpacket of a new packet transmission.
摘要翻译：用于以不同频率接收数据的方法包括：以第一载波频率接收包括数据的第一传输分组，以及接收包含第二载波频率的数据的第二传输分组。该方法还包括维护与发送第一和第二传输分组的传输实体的通信，以及识别第一和第二传输分组的接收质量。此外，重发子分组的方法包括从至少两个发送实体发送分组传输的第一子分组。在接收到响应于第一子分组产生的未确认NACK之后，该方法还包括交替地从不同发送实体发送后续子分组。在接收到响应于分组传输的任何子分组产生的确认ACK时，该方法还包括发送新分组传输的第一子分组。

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