专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08675755B1 Method and apparatus for jointly decoding independently encoded signals 失效
标题翻译：用于联合解码独立编码信号的方法和装置
公开(公告)号：US08675755B1
公开(公告)日：2014-03-18
申请号：US12830100
申请日：2010-07-02
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04L5/12
CPC分类号： H04L1/0048 , H04L1/0041 , H04L25/03248 , H04L27/3488 , H04L2001/0093
摘要： A received signal includes a plurality of user signals, the plurality of user signals including at least a first user signal and a second user signal. The first user signal corresponds to first user data that has been modulated independently of second user data corresponding to the second user signal. At least one of the first user signal or the second user signal is encoded with a finite state machine encoder independently of the other of the first user signal and the second user signal. The received signal is demodulated, wherein demodulating the received signal includes calculating distances between (i) each transmit symbol in the received signal and (ii) expected symbol values, wherein each expected symbol value corresponds to user data for multiple users including the first user and the second user. User data in the received signal including the first user data and the second user data is decoded based on the calculated distances.
摘要翻译：接收到的信号包括多个用户信号，所述多个用户信号至少包括第一用户信号和第二用户信号。第一用户信号对应于已经独立于对应于第二用户信号的第二用户数据被调制的第一用户数据。第一用户信号或第二用户信号中的至少一个与独立于第一用户信号和第二用户信号中的另一个的有限状态机编码器一起编码。所接收的信号被解调，其中解调接收的信号包括计算（i）接收信号中的每个发送符号与（ii）预期符号值之间的距离，其中每个期望符号值对应于包括第一用户的多个用户的用户数据，第二个用户。基于计算出的距离对包括第一用户数据和第二用户数据的接收信号中的用户数据进行解码。

2. 发明授权

US08451931B1 Method and apparatus for implementing transmit diversity in OFDM systems 有权
公开(公告)号：US08451931B1
公开(公告)日：2013-05-28
申请号：US13403949
申请日：2012-02-23
申请人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit Nabar , Yakun Sun
发明人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit Nabar , Yakun Sun
IPC分类号： H04B7/00
CPC分类号： H04L27/2627 , H04B7/0413 , H04B7/0669 , H04B7/0671 , H04L1/0625 , H04L5/0023 , H04L5/0087 , H04L25/0204 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： A plurality of diagonal matrices Ci is determined, where the plurality of diagonal matrices Ci is for modifying a plurality of transmit signals to be transmitted via a plurality of transmit antennas, each diagonal matrix Ci for modifying an i-th block of sub-carriers, adjacent in frequency, in the plurality of transmit signals. The plurality of diagonal matrices Ci is used to modify the plurality of transmit signals to implement transmit diversity.

3. 发明授权

US08531982B1 Quality of service aware channel quality indicator 有权
标题翻译：服务质量意识渠道质量指标
公开(公告)号：US08531982B1
公开(公告)日：2013-09-10
申请号：US12917591
申请日：2010-11-02
申请人： Jungwon Lee , Jihwan P. Choi , Yakun Sun
发明人： Jungwon Lee , Jihwan P. Choi , Yakun Sun
IPC分类号： H04B17/00 , H04W24/00
CPC分类号： H04W24/08 , H04L1/0026
摘要： Systems, methods, and other embodiments associated with QoS-aware CQI are described. In one embodiment, an apparatus includes a channel quality indicator (CQI) determination logic configured to compute a quality of service (QoS) aware CQI as a function of a QoS associated with a wireless channel over which a first wireless communication apparatus and a second wireless communication apparatus communicate. The apparatus may also include a CQI report logic configured to report the QoS-aware CQI, in a CQI report message, to a wireless communication apparatus that requested the QoS-aware CQI in a CQI request message.
摘要翻译：描述与QoS感知CQI相关联的系统，方法和其他实施例。在一个实施例中，一种装置包括信道质量指示符（CQI）确定逻辑，其被配置为根据与无线信道相关联的QoS来计算感知质量CQI（QoS），所述QoS与第一无线通信装置和第二无线通信设备进行通信。该装置还可以包括CQI报告逻辑，其被配置为在CQI报告消息中将QoS认知CQI报告给在CQI请求消息中请求QoS感知CQI的无线通信装置。

4. 发明授权

US08503291B1 Systems and methods for directing a beam towards a device in the presence of interference based on reciprocity 有权
公开(公告)号：US08503291B1
公开(公告)日：2013-08-06
申请号：US12818430
申请日：2010-06-18
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： G01R31/08 , H04Q7/00
CPC分类号： H04B7/0456 , H04B7/0617
摘要： Methods and apparatus are provided for directing a beam towards a receiving device in the presence of interference. A beam transmitted by a transmission source is received at a receiving device. The received beam is affected by an interference signal from an interfering source. The receiving device computes a covariance matrix that represents a channel estimate associated with the interfering source. The receiving device modifies a predetermined sounding signal based on the covariance matrix for transmission to the transmission source. The receiving device causes the transmission source to estimate an equivalent channel matrix based on the predetermined sounding signal and the modified predetermined sounding signal. The equivalent channel matrix represents the channel estimate associated with the interfering source and a channel estimate associated with the transmission source.

5. 发明授权

US09184877B1 Method and apparatus for decoding independently encoded signals 有权
标题翻译：对独立编码信号进行解码的方法和装置
公开(公告)号：US09184877B1
公开(公告)日：2015-11-10
申请号：US12940778
申请日：2010-11-05
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04L27/06 , H04L1/00 , H03M13/41 , H03M13/00
CPC分类号： H04L27/38 , H03M13/3905 , H03M13/3961 , H03M13/41 , H03M13/4107 , H03M13/6325 , H03M13/6502 , H03M13/6525 , H04J11/0036 , H04L1/0048 , H04L1/0054 , H04L27/3488
摘要： A received signal that includes a plurality of user signals is demodulated. The plurality of user signals includes at least a first user signal and a second user signal. The first user signal corresponds to first user data that has been modulated independently of second user data corresponding to the second user signal, and the first user signal is encoded with a first finite state machine encoder independently of the other user signals. The first finite state machine encoder has a number of states S1. The second user signal is encoded with a second finite state machine encoder independently of the other user signals, and the second finite state machine encoder has a number of states S2. Demodulating the received signal includes calculating distances between (i) each transmit symbol in the received signal and (ii) expected symbol values, wherein each expected symbol value corresponds to user data for multiple users including the first user and the second user. The first user data in the received signal is decoded based on the calculated distances utilizing a finite state machine decoder having S1 states.
摘要翻译：解调包括多个用户信号的接收信号。多个用户信号至少包括第一用户信号和第二用户信号。第一用户信号对应于已经独立于与第二用户信号相对应的第二用户数据被调制的第一用户数据，并且第一用户信号与第一有限状态机编码器编码，独立于其他用户信号。第一有限状态机编码器具有多个状态S1。第二用户信号用独立于其他用户信号的第二有限状态机编码器编码，而第二有限状态机编码器具有多个状态S2。解调接收到的信号包括计算（i）接收信号中的每个发送符号与（ii）预期符号值之间的距离，其中每个预期符号值对应于包括第一用户和第二用户的多个用户的用户数据。使用具有S1状态的有限状态机解码器，基于计算出的距离来解码接收信号中的第一用户数据。

6. 发明授权

US08718675B1 Positioning request in paging messages of wireless communication systems 失效
标题翻译：无线通信系统寻呼消息中的定位请求
公开(公告)号：US08718675B1
公开(公告)日：2014-05-06
申请号：US13165462
申请日：2011-06-21
申请人： Jihwan P. Choi , Jungwon Lee
发明人： Jihwan P. Choi , Jungwon Lee
IPC分类号： H04W24/00
CPC分类号： H04W4/02 , H04W64/00 , H04W68/005 , H04W68/02
摘要： Systems and techniques relating to wireless communications are described. A described technique includes generating a paging message for a wireless communication device, the paging message can include a positioning request; transmitting the paging message to the wireless communication device; and receiving, during a connection establishment process, a connection message from the wireless communication device. The connection message can include a positioning response that is responsive to the positioning request.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括为无线通信设备生成寻呼消息，寻呼消息可以包括定位请求; 将所述寻呼消息发送到所述无线通信设备; 以及在连接建立过程期间从所述无线通信设备接收连接消息。连接消息可以包括响应于定位请求的定位响应。

7. 发明授权

US08379508B1 Systems and methods for computing a relative path delay between multiple transmission sources 有权
标题翻译：用于计算多个传输源之间的相对路径延迟的系统和方法
公开(公告)号：US08379508B1
公开(公告)日：2013-02-19
申请号：US12835904
申请日：2010-07-14
申请人： Jungwon Lee , Jiwoong Choi , Jihwan P. Choi
发明人： Jungwon Lee , Jiwoong Choi , Jihwan P. Choi
IPC分类号： H04J11/00 , H04J3/06
CPC分类号： H04W40/38 , H04J11/0063 , H04L25/0202 , H04L27/2601
摘要： Systems and methods are provided for computing a relative path delay between multiple transmitting source to select a source that is closest to a receiving device. Preamble sequences unique to each source are received by a receiving device. The receiving devices determines based on a channel estimation or differential algorithm which transmitting source is closer to the receiving device. The channel estimation algorithm computes the path delay based on a channel estimation correlation at different preamble sequence indices. The differential algorithm computes the path delay based on a correlation between the received and transmitted preamble sequences at different preamble sequence indices. The receiving device selects the closer of the multiple sources to be the source from which to extract data.
摘要翻译：提供的系统和方法用于计算多个发送源之间的相对路径延迟，以选择最接近接收设备的源。每个源独有的前导序列由接收设备接收。接收装置基于信道估计或差分算法确定发射源更靠近接收装置。信道估计算法基于在不同前同步码序列索引处的信道估计相关性来计算路径延迟。差分算法基于在不同前同步码序列索引处的接收和发送前同步码序列之间的相关性来计算路径延迟。接收设备选择要从中提取数据的源的更多的源。

8. 发明授权

US08300716B1 Link adaptation for OFDM systems 有权
标题翻译： OFDM系统的链路适配
公开(公告)号：US08300716B1
公开(公告)日：2012-10-30
申请号：US12328443
申请日：2008-12-04
申请人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou
发明人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou
IPC分类号： H04L27/28
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0009 , H04L1/203 , H04L5/0007 , H04L5/0046 , H04W24/08
摘要： A method of adaptively selecting a modulation and coding scheme (MCS) of a communication link includes obtaining a first parameter corresponding to a Quality of Service (QoS) requirement of the communication link, obtaining a second parameter indicative of a physical condition of the communication link, selecting an MCS based on at least the first parameter and the second parameter.
摘要翻译：自适应地选择通信链路的调制和编码方案（MCS）的方法包括：获得与通信链路的服务质量（QoS）要求对应的第一参数，获得指示通信链路的物理状况的第二参数至少基于第一参数和第二参数选择MCS。

9. 发明授权

US08130858B1 Method and apparatus for implementing transmit diversity in OFDM systems 有权
标题翻译：在OFDM系统中实现发射分集的方法和装置
公开(公告)号：US08130858B1
公开(公告)日：2012-03-06
申请号：US12129473
申请日：2008-05-29
申请人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit U. Nabar , Yakun Sun
发明人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit U. Nabar , Yakun Sun
IPC分类号： H04B7/02
CPC分类号： H04L27/2627 , H04B7/0413 , H04B7/0669 , H04B7/0671 , H04L1/0625 , H04L5/0023 , H04L5/0087 , H04L25/0204 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： A plurality of phases are determined. The plurality of phases are to be applied to a plurality of transmit signals to be transmitted via a plurality of transmit antennas. Each transmit signal comprises a plurality of sub-carriers. Each phase of the plurality of phases is to be applied to a corresponding block of sub carriers in the plurality of transmit signals, and each block of sub-carriers comprises a plurality of sub-carriers that are adjacent in frequency. The plurality of phases are applied to the plurality of transmit signals to implement transmit diversity. Each phase is applied to the corresponding block of sub carriers in the plurality of transmit signals.
摘要翻译：确定多个阶段。多个相位应用于要经由多个发射天线发射的多个发射信号。每个发射信号包括多个子载波。将多个相位的每个相位施加到多个发射信号中的相应的子载波块，并且每个子载波块包括在频率上相邻的多个子载波。多个相位被施加到多个发射信号以实现发射分集。每个相位被施加到多个发射信号中的相应的子载波块。

10. 发明授权

US08121085B1 Slot allocation method and apparatus for slot-based communication 有权
标题翻译：用于基于槽的通信的槽分配方法和装置
公开(公告)号：US08121085B1
公开(公告)日：2012-02-21
申请号：US12118525
申请日：2008-05-09
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04W16/10 , H04W16/22 , H04W24/02 , H04W72/04
CPC分类号： H04W72/0446 , H04W16/14 , H04W28/22 , H04W48/16
摘要： Communication between a base station and remote stations is partitioned into frames, each including a first frequency reuse zone having a number of slots. Slots are allocated by assigning a first data rate to each remote station for communication using the first frequency reuse zone. Each remote station is assigned a respective slot allocation comprising a first number of slots of the first frequency reuse zone and has a weighted data rate dependent on the first data rate and the respective slot allocation. The slot allocations are determined so as to maximize the minimum of the weighted data rates of the remote stations. Slots may be allocated using a data rate assigner to assign a first data rate to each remote station for communication using slots of the first frequency reuse zone, and using a slot allocation provider to provide a respective slot allocation for each remote station.
摘要翻译：基站和远程站之间的通信被划分为帧，每个帧包括具有多个时隙的第一频率重用区。通过向每个远程站分配第一数据速率以便使用第一频率重用区进行通信来分配时隙。为每个远程站分配包括第一频率重用区的第一数量的时隙的相应时隙分配，并具有取决于第一数据速率和相应时隙分配的加权数据速率。确定时隙分配以最大化远程站的加权数据速率的最小值。可以使用数据速率分配器来分配时隙，以将第一数据速率分配给每个远程站，以便使用第一频率重用区的时隙进行通信，并且使用时隙分配提供者为每个远程站提供相应的时隙分配。

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