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公开(公告)号：US10230404B2
公开(公告)日：2019-03-12
申请号：US14580622
申请日：2014-12-23
摘要： A system and method for providing error control coding for backhaul applications are disclosed. Data is first encoded using Reed-Solomon (RS) coding. The output RS blocks are then turbo coded. The size of the output RS blocks is selected to match the input of the turbo encoder. The bits from the RS blocks may be interleaved to create the input turbo blocks. Cyclic Redundancy Check (CRC) parity bits may be added to the data prior to RS coding.
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公开(公告)号：US09459339B2
公开(公告)日：2016-10-04
申请号：US13917235
申请日：2013-06-13
CPC分类号： G01S5/0294
摘要： A position estimation method for indoor positioning includes filtering an initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points and a previous initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points by a Kalman filter to generate an updated previous position estimate, analyzing the updated previous position estimate to determine if the value is outside of a range, and constraining the updated previous position estimate based on the value being outside of the range.
摘要翻译： 一种用于室内定位的位置估计方法包括对初始位置估计进行滤波，该初始位置估计包括反映参考点的几何形状的质量的对应协方差以及包括反映参考的几何形状的质量的对应协方差的先前初始位置估计 通过卡尔曼滤波器进行积分以产生更新的先前位置估计，分析更新的先前位置估计以确定该值是否在范围之外，并且基于超出该范围的值约束更新的先前位置估计。
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公开(公告)号：US09056767B2
公开(公告)日：2015-06-16
申请号：US13852073
申请日：2013-03-28
CPC分类号： B81C1/00984 , B81B3/0005 , B81B7/0032 , B81C1/00261 , B81C1/0096 , B81C2201/112 , H01L21/02112 , H04W4/02 , Y10S257/914
摘要： A wireless device that includes an access point (AP) scanner, a transceiver, and a controller coupled to the AP scanner and transceiver. The AP scanner is configured to scan wireless network channels utilized by one or more APs to transmit data packets, probe responses, and beacons. The transceiver is configured to transmit one or more probe requests to the one or more APs and receive one or more probe responses and beacons from the one or more APs. The controller is configured to determine a proximate geographic position of the wireless device based on signal strength of the one or more probe responses and beacons received from the one or more APs. The controller also dynamically adapts a parameter utilized in determining the proximate geographic position of the wireless device.
摘要翻译： 一种包括接入点（AP）扫描器，收发器和耦合到AP扫描器和收发器的控制器的无线设备。 AP扫描器被配置为扫描由一个或多个AP使用的无线网络信道以发送数据分组，探测响应和信标。 收发器被配置为向一个或多个AP发送一个或多个探测请求，并从一个或多个AP接收一个或多个探测响应和信标。 控制器被配置为基于从一个或多个AP接收的一个或多个探测响应和信标的信号强度来确定无线设备的邻近地理位置。 控制器还动态地适配用于确定无线设备的最近地理位置的参数。
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公开(公告)号：US20230163787A1
公开(公告)日：2023-05-25
申请号：US18094710
申请日：2023-01-09
CPC分类号： H03M13/2957 , H03M13/27 , H03M13/2966 , H03M13/09
摘要： A system and method for providing error control coding for backhaul applications are disclosed. Data is first encoded using Reed-Solomon (RS) coding. The output RS blocks are then turbo coded. The size of the output RS blocks is selected to match the input of the turbo encoder. The bits from the RS blocks may be interleaved to create the input turbo blocks. Cyclic Redundancy Check (CRC) parity bits may be added to the data prior to RS coding.
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公开(公告)号：US20230011884A1
公开(公告)日：2023-01-12
申请号：US17929481
申请日：2022-09-02
摘要： A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.
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公开(公告)号：US10652867B2
公开(公告)日：2020-05-12
申请号：US16156153
申请日：2018-10-10
摘要： A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.
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公开(公告)号：US09804255B2
公开(公告)日：2017-10-31
申请号：US15162735
申请日：2016-05-24
CPC分类号： G01S5/0294
摘要： A position estimation method for indoor positioning includes filtering an initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points and a previous initial position estimate that includes a corresponding covariance that reflects the quality of the geometry of the reference points by a Kalman filter to generate an updated previous position estimate, analyzing the updated previous position estimate to determine if the value is outside of a range, and constraining the updated previous position estimate based on the value being outside of the range.
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公开(公告)号：US20140171108A1
公开(公告)日：2014-06-19
申请号：US13852073
申请日：2013-03-28
IPC分类号： H04W4/02
CPC分类号： B81C1/00984 , B81B3/0005 , B81B7/0032 , B81C1/00261 , B81C1/0096 , B81C2201/112 , H01L21/02112 , H04W4/02 , Y10S257/914
摘要： A wireless device that includes an access point (AP) scanner, a transceiver, and a controller coupled to the AP scanner and transceiver. The AP scanner is configured to scan wireless network channels utilized by one or more APs to transmit data packets, probe responses, and beacons. The transceiver is configured to transmit one or more probe requests to the one or more APs and receive one or more probe responses and beacons from the one or more APs. The controller is configured to determine a proximate geographic position of the wireless device based on signal strength of the one or more probe responses and beacons received from the one or more APs. The controller also dynamically adapts a parameter utilized in determining the proximate geographic position of the wireless device.
摘要翻译： 一种包括接入点（AP）扫描器，收发器和耦合到AP扫描器和收发器的控制器的无线设备。 AP扫描器被配置为扫描由一个或多个AP使用的无线网络信道以发送数据分组，探测响应和信标。 收发器被配置为向一个或多个AP发送一个或多个探测请求，并从一个或多个AP接收一个或多个探测响应和信标。 控制器被配置为基于从一个或多个AP接收的一个或多个探测响应和信标的信号强度来确定无线设备的邻近地理位置。 控制器还动态地适配用于确定无线设备的最近地理位置的参数。
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29.发明申请METHODS FOR ASSIGNING CODEWOODS TO POINTS IN HEXAGONAL CONSTELLATIONS IN DIGITAL COMMUNICATION SYSTEMS 有权在数字通信系统中将码头分配给十六进制信号的方法公开(公告)号：US20140079162A1
公开(公告)日：2014-03-20
申请号：US14030338
申请日：2013-09-18
IPC分类号： H04L1/00
CPC分类号： H04L1/0054 , H04L27/3405 , H04L27/38
摘要： Embodiments of the invention provide a method of decoding of hexagonal constellations. The decoding methods exploit the inherent structure of the hexagonal grid to eliminate/minimize the requirements for distance computations. A constellation which has unused constellation points is received. A plurality of lookup tables is used for indicating whether a particular constellation point is used. The lookup tables are indexed using the two integers u and v. An initial estimate of u and v is found. The euclidean distance to an immediate four neighbors resulting in the immediate upper and lower integers for ū and v. The upper or lower integer that corresponds to the smalling distance is selected and all other immediate neighbors are computed. Assignment of constellation points on the hexagonal grid for a given constellation size is provided which exploits the inherent redundancy provided by the hexagonal grid. Assignment of codewords to the available constellation points to minimize the Hamming distance between adjacent codewords is also provided.
摘要翻译： 本发明的实施例提供了一种对六角形星座进行解码的方法。 解码方法利用六角网格的固有结构来消除/最小化距离计算的要求。 接收到具有未使用的星座点的星座。 多个查找表用于指示是否使用特定的星座点。 查找表使用两个整数u和v进行索引，找到u和v的初始估计。 欧几里德到立即四个邻居的距离，导致ū和v的立即上下整数。选择与小距离对应的上或下整数，并计算所有其他直接邻居。 提供给定星座大小的六边形网格上的星座点的分配，其利用由六边形网格提供的固有冗余。 还提供了将码字分配给可用的星座点以最小化相邻码字之间的汉明距离。
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30.发明授权公开(公告)号：US08478298B1
公开(公告)日：2013-07-02
申请号：US13666658
申请日：2012-11-01
IPC分类号： H04W4/02
CPC分类号： H04W4/02
摘要： Apparatus and method for positioning a device based on wireless local area network signals. In one embodiment, a wireless local network positioning system includes access point selection logic. The access point selection logic includes likelihood computation logic, minimum mean squared error (MMSE) estimation logic, variance computation logic, and access point exclusion logic. The likelihood computation logic is configured to compute a likelihood value for each access point and point of a positioning grid. The MMSE estimation logic is configured to compute an MMSE estimate based on the likelihood values. The variance computation logic is configured to compute an MMSE variance for the MMSE estimate. The access point exclusion logic is configured to determine whether excluding a selected one of the access points reduces the MMSE variance, and to exclude the selected access point from the access points used for positioning, based on the exclusion reducing the MMSE variance.
摘要翻译： 基于无线局域网信号定位设备的装置和方法。 在一个实施例中，无线本地网络定位系统包括接入点选择逻辑。 接入点选择逻辑包括似然计算逻辑，最小均方误差（MMSE）估计逻辑，方差计算逻辑和接入点排除逻辑。 似然计算逻辑被配置为计算定位网格的每个接入点和点的似然值。 MMSE估计逻辑被配置为基于似然值来计算MMSE估计。 方差计算逻辑被配置为计算MMSE估计的MMSE方差。 接入点排除逻辑被配置为基于排除减少MMSE方差的排除来确定是否排除接入点中的所选择的一个接入点减少MMSE方差，并且从用于定位的接入点中排除所选择的接入点。
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