公开(公告)号：US09800376B1

公开(公告)日：2017-10-24

申请号：US15096467

申请日：2016-04-12

申请人： Lin-Nan Lee ,  Liping Chen ,  Anthony Noerpel ,  Stanley E. Kay

发明人： Lin-Nan Lee ,  Liping Chen ,  Anthony Noerpel ,  Stanley E. Kay

IPC分类号： H04B7/185 ,  H04B7/19 ,  H04B1/04 ,  H04L5/00 ,  H04W16/28 ,  H04W16/14 ,  H04W72/08 ,  H04W72/04

CPC分类号： H04L5/0023 ,  H04B7/18513 ,  H04B7/18582 ,  H04B7/2041 ,  H04W16/14 ,  H04W16/28 ,  H04W72/048 ,  H04W72/082

摘要： A high capacity communication system and method, and a high capacity communications configuration system are provided. The high capacity communication system includes a transmitter. The transmitter includes a signal generator to generate a signal including, wherein for a first frame portion extending from zero to τ time the signal is generated per a first color reuse plan of a frequency spectrum and one or more polarizations, and for a second frame portion extending from τ to T the signal is generated per a second color reuse plan of the frequency spectrum and the one or more polarizations; and an RF system to beam the signal concurrently to a first geographic area and a second geographic area. In the high capacity communication system, τ is less than T, the first frame portion is intended for a first VSAT population disposed in the first geographic coverage area and the second frame portion is intended for a second VSAT population disposed in the second geographic coverage area, and the first color reuse plan maps the frequency spectrum and the one or more polarizations into fewer colors than the second color reuse plan.

公开(公告)号：US11184100B2

公开(公告)日：2021-11-23

申请号：US16534807

申请日：2019-08-07

申请人： Liping Chen ,  Lin-Nan Lee

发明人： Liping Chen ,  Lin-Nan Lee

IPC分类号： H04J13/00 ,  G01S19/01 ,  H04L5/00 ,  H04W56/00

摘要： A user terminal (UT) to transmit small amounts of data, the UT including: a packet including the data, where the packet is less than 128 bytes; a frequency synchronizer to synchronize a transmission frequency of an ASCMA return link connecting the UT with a satellite gateway; and an ASCMA transmitter to transmit, without acquiring timing synchronization with the satellite gateway from the UT, the packet modulated over the synchronized transmission frequency as an ASCMA waveform including a preamble to indicate a start of a transmission. Other embodiments of this aspect include corresponding computer systems, apparatus, and computer programs recorded on one or more computer storage devices, each configured to perform the actions of the methods.

公开(公告)号：US09009559B2

公开(公告)日：2015-04-14

申请号：US13422534

申请日：2012-03-16

申请人： Lin-Nan Lee ,  Mustafa Eroz ,  Liping Chen ,  Satyajit Roy

发明人： Lin-Nan Lee ,  Mustafa Eroz ,  Liping Chen ,  Satyajit Roy

IPC分类号： H03M13/00 ,  H04L1/00 ,  H03M13/27 ,  H03M13/29 ,  H03M13/25

CPC分类号： H04L1/0041 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/2936 ,  H03M13/6561 ,  H04B7/18506 ,  H04L1/0009 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071

摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.

摘要翻译： 提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。 数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。 然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。 数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

公开(公告)号：US20130246884A1

公开(公告)日：2013-09-19

申请号：US13422534

申请日：2012-03-16

申请人： Lin-Nan Lee ,  Mustafa Eroz ,  Liping Chen ,  Satyajit Roy

发明人： Lin-Nan Lee ,  Mustafa Eroz ,  Liping Chen ,  Satyajit Roy

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： H04L1/0041 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/2936 ,  H03M13/6561 ,  H04B7/18506 ,  H04L1/0009 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071

摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.

摘要翻译： 提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。 数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。 然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。 数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

公开(公告)号：US11452066B2

公开(公告)日：2022-09-20

申请号：US17072938

申请日：2020-10-16

申请人： Liping Chen ,  Lin-Nan Lee

发明人： Liping Chen ,  Lin-Nan Lee

IPC分类号： H04W64/00 ,  H04B17/318 ,  G01S5/02 ,  G06K9/00 ,  H04W24/10

摘要： A geolocation is estimated by tessellating a coverage area into a camping cell and adjacent cells; subdividing the camping cell into grid points where each grid point of the grid points has an associated relative offset from a camping beam center; illuminating, with a platform, the camping cell with a camping beam and each of the adjacent cells with adjacent beams; receiving a camping beam signal strength and adjacent beams signal strengths for each grid point of the grid points; profiling, at each grid point, ratios of the camping beam signal strength to each one of the adjacent beams signal strengths; mapping the ratios and the associated relative offset of each grid point; and estimating a relative geolocation of a User Terminal (UT) from the camping beam center based on a UT camping beam signal strength and UT adjacent beams signal strengths.

公开(公告)号：US08972834B2

公开(公告)日：2015-03-03

申请号：US13596846

申请日：2012-08-28

申请人： Mustafa Eroz ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Lin-Nan Lee

IPC分类号： H03M13/03 ,  H04L1/00 ,  H03M13/25

CPC分类号： H03M13/6393 ,  H03M13/005 ,  H03M13/1102 ,  H03M13/1105 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/255 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6516 ,  H04L1/0057 ,  H04L1/0068

摘要： The present invention provides a low density parity check (LDPC) code system and method of using such a system. A transmitted LDPC code block size may be chosen such that the minimum transmitted block size is minimized. Further, the system provides for intermediate LDPC code block size support. Finally, a common decoder architecture may be used to decode different LDPC code rates and block sizes.

摘要翻译： 本发明提供一种使用这种系统的低密度奇偶校验（LDPC）码系统和方法。 可以选择传输的LDPC码块大小，使得最小传输块大小被最小化。 此外，该系统提供中间LDPC码块大小支持。 最后，可以使用公共解码器架构来解码不同的LDPC码率和块大小。

公开(公告)号：US08615697B2

公开(公告)日：2013-12-24

申请号：US12496443

申请日：2009-07-01

申请人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

发明人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

IPC分类号： H03M13/00

CPC分类号： H04B7/06 ,  H03M13/1102 ,  H03M13/255 ,  H04B7/04 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0637 ,  H04L5/0023 ,  H04L25/03898

摘要： Method and apparatus for implementing LDPC codes in an IEEE 802.11 standard system configured to operate in a Multiple-Input, Multiple-Output (MIMO) schema. A method in accordance with the present invention comprises defining a base LDPC code, having a length equal to an integer number of data carriers in an ODFM symbol, transmitting the base LDPC code over a plurality of sub-carriers, wherein the base code is transmitted at an expected phase on sub-carriers specified by the IEEE 802.11 standard system, and transmitting the base LDPC code on other sub-carriers than those specified by the IEEE 802.11 standard system, wherein the base LDPC code on the other sub-carriers is transmit offset in phase from the base LDPC code on the specified sub-carriers.

公开(公告)号：US20130155943A1

公开(公告)日：2013-06-20

申请号：US13328588

申请日：2011-12-16

申请人： Chi-Jiun Su ,  Lin-Nan Lee

发明人： Chi-Jiun Su ,  Lin-Nan Lee

IPC分类号： H04W84/06

CPC分类号： H04B7/18528 ,  H04L1/0057 ,  H04L1/1867 ,  H04L45/70 ,  H04L2001/0093

摘要： A method for efficient retransmission over a satellite network including transmitting data packets to VSATs, receiving retransmission requests for at least one of the data packets from the VSATs, generating a retransmission packet based on the retransmission requests using XOR summing, transmitting the retransmission packet to the plurality of VSATs.

摘要翻译： 一种通过卫星网络有效重传的方法，包括向VSAT发送数据分组，从VSAT接收至少一个数据分组的重传请求，根据使用XOR求和的重传请求生成重传分组，将重传分组发送给 多个VSAT。

公开(公告)号：US08402341B2

公开(公告)日：2013-03-19

申请号：US12707766

申请日：2010-02-18

申请人： Mustafa Eroz ,  Lin-Nan Lee

发明人： Mustafa Eroz ,  Lin-Nan Lee

IPC分类号： H03M13/00 ,  H03M13/03 ,  H04L1/18 ,  G11C29/00 ,  G06F11/00

CPC分类号： H03M13/1165 ,  H03M13/036 ,  H03M13/1122 ,  H03M13/1137 ,  H03M13/152 ,  H03M13/2906

摘要： An approach is provided for processing structure Low Density Parity Check (LDPC) codes. Memory storing edge information and a posteriori probability information associated with a structured parity check matrix used to generate Low Density Parity Check (LDPC) coded signal are accessed. The edge information represent relationship between bit nodes and check nodes, and are stored according to a predetermined scheme that permits concurrent retrieval of a set of the edge information.

摘要翻译： 提供了一种用于处理结构低密度奇偶校验（LDPC）码的方法。 访问与用于生成低密度奇偶校验（LDPC）编码信号的结构奇偶校验矩阵相关联的存储边缘信息和后验概率信息。 边缘信息表示位节点和校验节点之间的关系，并且根据允许并发检索一组边缘信息的预定方案来存储。

公开(公告)号：US08374272B2

公开(公告)日：2013-02-12

申请号：US12011658

申请日：2008-01-29

申请人： A. Roger Hammons, Jr. ,  Hesham El-Gamal ,  Lin-Nan Lee ,  Stan Kay ,  Andrew MacDonald ,  Jack Rozmaryn ,  Bassel Beidas

发明人： A. Roger Hammons, Jr. ,  Hesham El-Gamal ,  Lin-Nan Lee ,  Stan Kay ,  Andrew MacDonald ,  Jack Rozmaryn ,  Bassel Beidas

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L27/2602 ,  H04L1/0618

摘要： A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency coding. The base station includes a plurality of multiple-input multiple-output (MIMO) transceivers. The system includes a terminal that is configured to receive the modulated signal. The above arrangement is particularly applicable to providing multichannel multipoint distribution services (MMDS) over a radio communications system.