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公开(公告)号：US20160049962A1
公开(公告)日：2016-02-18
申请号：US14779708
申请日：2013-04-25
Applicant: LI, Jian , XUE, Yisheng , HUANG, Yin , XU, Changlong , HOU, Jilei , QUALCOMM INCORPORATED
Inventor： Jian Li , Ylsheng Xue , Yin Huang , Changlong Xu , Jilei Hou
CPC classification number: H03M13/1174 , H03M13/1102 , H03M13/611 , H03M13/616
Abstract: A method of data encoding is disclosed. A communications device receives a set of information bits to be encoded into a codeword (c), which includes the set of information bits and a set of parity bits. A first bit value is assigned to a first parity bit in the set of parity bits. The remaining parity bits are then encoded based, at least in part, on the first bit value assigned to the first parity bit. The device may encode the remaining parity bits using the set of information bits and a parity check matrix (H) for a low density parity check (LDPC) code. The device may also generate a new parity check matrix (H0) based on linearly independent rows of the parity check matrix H, and iteratively evaluate each of the remaining parity bits based on the equation: H0c=0. The device may then determine whether the encoded codeword c is a valid codeword given the LDPC code, and change one or more bit values of the codeword if c is not a valid codeword.
Abstract translation: 公开了一种数据编码方法。 通信设备接收要编码的一组信息比特的码字（c），其包括该组信息比特和一组奇偶校验位。 第一比特值被分配给奇偶校验位集合中的第一奇偶校验位。 然后，至少部分地基于分配给第一奇偶校验位的第一比特值来编码剩余的奇偶校验位。 该装置可以使用一组信息比特和用于低密度奇偶校验（LDPC）码的奇偶校验矩阵（H））来编码剩余的奇偶校验比特。 该装置还可以基于奇偶校验矩阵H的线性独立行生成新的奇偶校验矩阵（H0），并且基于以下等式迭代地评估剩余奇偶校验位中的每一个：H0c = 0。 然后，设备可以确定编码码字c是否是给定LDPC码的有效码字，并且如果c不是有效码字，则改变码字的一个或多个比特值。
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公开(公告)号：US20150372695A1
公开(公告)日：2015-12-24
申请号：US14766740
申请日：2013-03-14
Applicant: Jian LI , Changlong XU , Yisheng XUE , Jilei HOU , Yin HUANG , QUALCOMM INCORPORATED
Inventor： Jian Li , Changlong Xu , Yisheng Xue , Jilei Hou , Yin Huang
CPC classification number: H03M13/1131 , H04L1/0045 , H04L1/005 , H04L1/0057
Abstract: A method of error correction using low density parity check (LDPC) codes is disclosed. A communications device receives a codeword and detects one or more bit errors in the received codeword using an LDPC code. The device then generates a corrected codeword based, at least in part, on a set of unsatisfied check nodes of the LDPC code. The device may determine that the one or more bit errors are associated with an absorption set of the LDPC code. The device may also determine a plurality of candidate codewords based on the set of unsatisfied check node and select the corrected codeword from the plurality of candidate codewords. Each of the plurality of candidate codewords may represent a valid codeword associated with the LDPC code.
Abstract translation: 公开了一种使用低密度奇偶校验（LDPC）码的纠错方法。 通信设备接收码字，并使用LDPC码检测接收到的码字中的一个或多个比特错误。 然后，该设备至少部分地基于LDPC码的一组不满足的校验节点来生成校正码字。 设备可以确定一个或多个比特错误与LDPC码的吸收集相关联。 该设备还可以基于该不满足的校验节点集合来确定多个候选码字，并从多个候选码字中选择校正后的码字。 多个候选码字中的每一个可以表示与LDPC码相关联的有效码字。
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公开(公告)号：US11244468B2
公开(公告)日：2022-02-08
申请号：US16621482
申请日：2017-07-28
Applicant: QUALCOMM Incorporated
Inventor： Yin Huang , Xiaoyi Zhu , Leslie Chiming Chan , Ruowei Wang
Abstract: Embodiments include devices and methods for processing an image captured by an image sensor of a robotic vehicle. A processor of the robotic vehicle may calculate an image output orientation matrix for an image that is output by the image sensor. The processor may calculate image sensor orientation matrix the image sensor. The processor may calculate a body orientation matrix of the robotic vehicle. The processor may transform the image captured by the image sensor based on the image output orientation matrix, the image sensor orientation matrix, and the body orientation matrix.
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Patent Agency Ranking
公开(公告)号：US09450644B2
公开(公告)日：2016-09-20
申请号：US14428318
申请日：2013-09-11
Applicant: QUALCOMM INCORPORATED
Inventor： Danlu Zhang , Guining Shi , William J. McFarland , Yin Huang , Gerardo Romo Luevano , Jae Min Shin , Kevin Khanh Dao
Abstract: A method of MIMO signal transmission on a cable is disclosed. The cable includes at least a first inner conductor, a second inner conductor, and an outer conductive shield. A first data signal is transmitted using the conductive shield and the first inner conductor. A second data signal is transmitted using at least the second inner conductor. The first and second data signals may be transmitted concurrently. For some embodiments, the second data signal may be transmitted using the first and second inner conductors. Thus, the second data signal may be a differential signal. For other embodiments, the first data signal may be transmitted using the conductive shield and the first inner conductor, and the second data signal may be transmitted using the conductive shield and the second inner conductor.
Abstract translation: 公开了一种在电缆上进行MIMO信号传输的方法。 电缆包括至少第一内部导体，第二内部导体和外部导电屏蔽。 使用导电屏蔽和第一内部导体传输第一数据信号。 至少使用第二内部导体发送第二数据信号。 第一和第二数据信号可以同时发送。 对于一些实施例，第二数据信号可以使用第一和第二内部导体传输。 因此，第二数据信号可以是差分信号。 对于其他实施例，第一数据信号可以使用导电屏蔽和第一内导体传输，并且第二数据信号可以使用导电屏蔽和第二内导体传输。
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公开(公告)号：US09408207B2
公开(公告)日：2016-08-02
申请号：US14405143
申请日：2013-03-15
Applicant: QUALCOMM Incorporated
Inventor： Sharad Sambhwani , Jiye Liang , Yin Huang , Peyman Razaghi , Sony Akkarakaran
CPC classification number: H04W72/0446 , H04L1/08 , H04L1/1877 , H04L5/0055 , H04W28/065 , H04W52/146 , H04W52/20 , H04W52/241 , H04W72/0413
Abstract: Methods and apparatus of wireless communication at a user equipment comprise compressing an uplink data packet. The methods and apparatus further comprise transmitting the uplink data packet on an uplink dedicated transport channel (DCH) to a network entity a plurality of times within a time duration allowed for transmission of the uncompressed uplink data packet. Moreover, the methods and apparatus comprise receiving a downlink acknowledgement message from the network entity corresponding to the uplink data packet. Additionally, the methods and apparatus comprise terminating transmission of the uplink DCH by transmitting bits of zero power for a remainder of the time duration on the DCH based on receiving the downlink acknowledgement message.
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16.发明申请公开(公告)号：US20160182273A1
公开(公告)日：2016-06-23
申请号：US14910569
申请日：2013-09-10
Applicant: QUALCOMM INCORPORATED
Inventor： Jian Li , Fuyun Ling , Changlong Xu , Yin Huang , Yisheng Xue , Jilei Hou
CPC classification number: H04L27/38 , H04L1/0047 , H04L1/0054 , H04L1/0058 , H04L5/12 , H04L25/03178 , H04L25/067
Abstract: A method and apparatus for demapping a double squared quadrature amplitude modulated (DSQ) symbol is disclosed. One or more first log likelihood ratios (LLRs) are determined, for a first subset of constellation points of a corresponding DSQ constellation, using an LLR approximation. One or more second LLRs are determined, for a second subset of constellation points of the DSQ constellation, using a lookup table. The DSQ symbol is then demapped to one of a plurality of constellation points of the DSQ constellation based on the first and second LLRs. For some embodiments, the first subset of constellation points may correspond with an inner region of the DSQ constellation and the second subset of constellation points may correspond with an outer region of the DSQ constellation.
Abstract translation: 公开了一种用于解映射双正交幅度调制（DSQ）符号的方法和装置。 对于对应DSQ星座的星座点的第一子集，使用LLR近似来确定一个或多个第一对数似然比（LLR）。 对于DSQ星座的星座点的第二子集，使用查找表来确定一个或多个第二LLR。 然后，基于第一和第二LLR，DSQ符号被映射到DSQ星座的多个星座点中的一个。 对于一些实施例，星座点的第一子集可以对应于DSQ星座的内部区域，并且星座点的第二子集可以对应于DSQ星座图的外部区域。
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公开(公告)号：US09363110B2
公开(公告)日：2016-06-07
申请号：US14646360
申请日：2013-01-08
Applicant: QUALCOMM INCORPORATED
Inventor： Haitao Zhang , Yin Huang , Jian Li , Yisheng Xue
CPC classification number: H04L25/0212 , H04B10/60 , H04L1/0054 , H04L25/03057
Abstract: A receiver is disclosed that includes a slicer having an input to receive a sequence of symbols exhibiting inter-symbol-interference (ISI). The slicer determines a state associated with each symbol based on a threshold. A feedback equalization unit is coupled to the slicer to apply equalization to the symbol fed to the slicer input based on prior detected symbol states. A Least-Mean-Square (LMS) unit cooperates with the slicer and feedback equalization unit to estimate a channel impulse response based on the equalized symbols. The LMS unit feeds the estimated channel impulse response to a Maximum-Likelihood-Sequence-Estimation (MLSE) unit to generate an estimated sequence of bits based on the estimated channel impulse response.
Abstract translation: 公开了一种接收器，其包括具有用于接收呈现符号间干扰（ISI）的符号序列的输入的限幅器。 限幅器基于阈值确定与每个符号相关联的状态。 反馈均衡单元耦合到限幅器，以基于先前检测的符号状态对馈送到限幅器输入的符号施加均衡。 最小均方（LMS）单元与限幅器和反馈均衡单元协作以基于均衡符号来估计信道脉冲响应。 LMS单元将估计的信道脉冲响应馈送到最大似然序列估计（MLSE）单元，以基于所估计的信道脉冲响应来产生估计的比特序列。
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公开(公告)号：US20150270872A1
公开(公告)日：2015-09-24
申请号：US14428318
申请日：2013-09-11
Applicant: QUALCOMM INCORPORATED
Inventor： Danlu Zhang , Guining Shi , William McFarland , Yin Huang , Gerardo Romo Luevano , Jae Min Shin , Kevin Khanh Dao
Abstract: A method of MIMO signal transmission on a cable is disclosed. The cable includes at least a first inner conductor, a second inner conductor, and an outer conductive shield. A first data signal is transmitted using the conductive shield and the first inner conductor. A second data signal is transmitted using at least the second inner conductor. The first and second data signals may be transmitted concurrently. For some embodiments, the second data signal may be transmitted using the first and second inner conductors. Thus, the second data signal may be a differential signal. For other embodiments, the first data signal may be transmitted using the conductive shield and the first inner conductor, and the second data signal may be transmitted using the conductive shield and the second inner conductor.
Abstract translation: 公开了一种在电缆上进行MIMO信号传输的方法。 电缆包括至少第一内部导体，第二内部导体和外部导电屏蔽。 使用导电屏蔽和第一内部导体传输第一数据信号。 至少使用第二内部导体发送第二数据信号。 第一和第二数据信号可以同时发送。 对于一些实施例，第二数据信号可以使用第一和第二内部导体传输。 因此，第二数据信号可以是差分信号。 对于其他实施例，第一数据信号可以使用导电屏蔽和第一内导体传输，并且第二数据信号可以使用导电屏蔽和第二内导体传输。
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