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21. 发明申请

US20110200134A1 SYSTEM AND METHOD FOR CHANNEL ESTIMATION IN A DELAY DIVERSITY WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：延迟分布无线通信系统中信道估计的系统与方法
公开(公告)号：US20110200134A1
公开(公告)日：2011-08-18
申请号：US13093568
申请日：2011-04-25
申请人： Farooq Khan
发明人： Farooq Khan
IPC分类号： H04B7/02
CPC分类号： H04L27/2601 , H04B7/0671 , H04B7/0684 , H04B7/12 , H04L5/0048 , H04L25/022 , H04L25/0228 , H04L25/03955 , H04L27/261 , H04L27/2647
摘要： A method of controlling downlink transmissions to a subscriber station capable of communicating with a base station of an orthogonal frequency division multiplexing (OFDM) network. The method comprises the steps of: receiving a first pilot signal from a first base station antenna; receiving a second pilot signal from a second base station antenna; and estimating the channel between the base station and subscriber station based on the received first and second pilot signals. The method also comprises determining a set of OFDM symbol processing parameters based on the step of estimating the channel and transmitting the OFDM symbol processing parameters to the base station. The base station uses the OFDM symbol processing parameters to control the relative gains and the relative delays of OFDM symbols transmitted from the first and second antennas.
摘要翻译：控制能够与正交频分复用（OFDM）网络的基站通信的用户站的下行链路传输的方法。该方法包括以下步骤：从第一基站天线接收第一导频信号; 从第二基站天线接收第二导频信号; 以及基于所接收的第一和第二导频信号来估计所述基站和所述用户站之间的信道。该方法还包括基于估计信道并将OFDM符号处理参数发送到基站的步骤来确定一组OFDM符号处理参数。基站使用OFDM符号处理参数来控制从第一和第二天线发送的OFDM符号的相对增益和相对延迟。

22. 发明授权

US07990920B2 Transmit diversity for acknowledgement and category 0 bits in a wireless communication system 有权
标题翻译：在无线通信系统中发送用于确认和分类0位的分集
公开(公告)号：US07990920B2
公开(公告)日：2011-08-02
申请号：US12105176
申请日：2008-04-17
申请人： Jianzhong Zhang , Zhouyue Pi , Farooq Khan
发明人： Jianzhong Zhang , Zhouyue Pi , Farooq Khan
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04L27/2608 , H04B7/0671 , H04B7/068 , H04L1/0606 , H04L1/1607 , H04L1/1858 , H04L5/0055
摘要： A method of transmitting acknowledgement/nonacknowledgement (ACK/NACK) signals including multiplexing ACK/NACK signals; and repeatedly transmitting for predetermined times the multiplexed signal with each of repetitions of transmitting the multiplexed signal being spread in a frequency domain and being mapped to a plurality of discrete resource units each having a pair of neighboring subcarriers and a predetermined number of Orthogonal Frequency Division Multiplexing (OFDM) control symbols.A method for transmitting Category 0 bits, including modulating the Category 0 bits; repeatedly transmitting the modulated Category 0 bits with each of repetitions of transmitting the modulated Category 0 bits being spread in a frequency domain and being mapped to a plurality of discrete resource units each having a pair of subcarriers and a predetermined number of OFDM control symbols; and mapping the modulated Category 0 bits by a frequency selective transmit diversity (FSTD).
摘要翻译：一种发送包括复用ACK / NACK信号的确认/非确认（ACK / NACK）信号的方法; 并且在多个信号中重复发送多路复用信号，每次重复发送多路复用信号在频域中扩展，并被映射到多个离散资源单元，每个离散资源单元具有一对相邻子载波和预定数量的正交频分复用（OFDM）控制符号。一种用于传输类别0位的方法，包括调制类别0位; 重复地发送调制的分类0比特，其中每个重复发送调制的分类0比特在频域中扩展，并被映射到多个离散资源单元，每个离散资源单元具有一对子载波和预定数量的OFDM控制符号; 并通过频率选择性发射分集（FSTD）将调制的0类比特映射。

23. 发明申请

US20110091220A1 APPARATUS AND METHOD FOR CHANNEL AGGREGATION AND GUARD CHANNEL INDICATION FOR VISIBLE LIGHT COMMUNICATION 有权
标题翻译：用于可见光通信的信道聚合和保护信道指示的装置和方法
公开(公告)号：US20110091220A1
公开(公告)日：2011-04-21
申请号：US12895225
申请日：2010-09-30
申请人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
发明人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method, apparatus, and a non-transitory computer readable storage medium for supporting visible light communication (VLC) exchanges bitmaps for capabilities field exchange in a media access control (MAC) layer during link establishment and association with other VLC-enabled devices. An aggregation bitmap is generated to indicate whether a visible light communication (VLC) transmitter of a first device uses at least one aggregated band that comprises multiple active frequency bands. The aggregation bitmap is transmitted in a capabilities information exchange (CIE) signal to a second device. A guard bitmap that identifies a set of guard frequency bands is also generated and transmitted in the CIE signal. Each guard frequency band indicates leakage transmission from the VLC transmitter.
摘要翻译：用于支持可见光通信（VLC）的方法，装置和非暂时计算机可读存储介质在与其他支持VLC的设备建立链接期间在媒体访问控制（MAC）层中交换位图以进行能力场交换。生成聚合位图以指示第一设备的可见光通信（VLC）发射机是否使用包括多个活动频带的至少一个聚合频带。聚合位图在能力信息交换（CIE）信号中被发送到第二设备。识别一组保护频带的保护位图也被生成并在CIE信号中发送。每个保护频带表示来自VLC发射机的泄漏传输。

24. 发明授权

US07916621B2 MIMO control signaling in a wireless communication system 有权
标题翻译：无线通信系统中的MIMO控制信令
公开(公告)号：US07916621B2
公开(公告)日：2011-03-29
申请号：US11882313
申请日：2007-07-31
申请人： Farooq Khan , Zhouyue Pi
发明人： Farooq Khan , Zhouyue Pi
IPC分类号： H04L5/04
CPC分类号： H04L1/0057 , H04L1/0046 , H04L1/0072 , H04L1/0079 , H04L1/06
摘要： The present invention relates to a method for data transmission in a communication system. The method including, determining, at the transmitter, whether to transmit data signal using a single codeword or two codewords, when it is determined that the single codeword transmission is used, coding, by the transmitter, a control signal by using a first signal format, with the control signal coded by the first signal format carrying information regarding the single codeword, when it is determined that the two codewords transmission is used, coding, by the transmitter, the control signal by using a second signal format, with the control signal coded by the second signal format carrying information regarding both of the two codewords, transmitting the data signal and the control signal according to the determined transmission format from the transmitter to the receiver.
摘要翻译：本发明涉及通信系统中的数据传输方法。该方法包括：当确定使用单个码字传输时，在发射机处确定是否使用单个码字或两个码字发射数据信号，由发射机通过使用第一信号格式来编码控制信号当控制信号由携带有关单个码字的信息的第一信号格式编码时，当确定使用两个码字传输时，由发射机利用第二信号格式与控制信号对发射机进行编码由携带有关两个码字两者的信息的第二信号格式编码，根据所确定的传输格式从发射机向接收机发送数据信号和控制信号。

25. 发明授权

US07813315B2 Spectrum sharing in a wireless communication network 有权
标题翻译：无线通信网络中的频谱共享
公开(公告)号：US07813315B2
公开(公告)日：2010-10-12
申请号：US11702397
申请日：2007-02-05
申请人： Joseph R. Cleveland , Farooq Khan , Eran Pisek , William J. Semper
发明人： Joseph R. Cleveland , Farooq Khan , Eran Pisek , William J. Semper
IPC分类号： H04W4/00
CPC分类号： H04W16/14 , H04L5/023 , H04W8/005
摘要： A system and method for synchronous spectrum sharing for use in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system includes a frame detector configured to detect a frame of a broadcast waveform and extract sub-carrier information from a subframe or Secondary User Map (SU MAP). SU MAP includes information on usable sub-carrier and pilot sub-carriers for secondary users. The system allows transmitting data from the secondary user node in unused sub-carriers thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of wireless communication systems can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.
摘要翻译：公开了一种用于基于正交频分复用（OFDM）或正交频分多址（OFDMA）信令的无线通信系统中的同步频谱共享的系统和方法。该系统包括帧检测器，其被配置为检测广播波形的帧并从子帧或次用户映射（SU MAP）提取副载波信息。 SU MAP包括关于次要用户的可用子载波和导频子载波的信息。该系统允许从未使用的子载波中的次用户节点发送数据，从而有效利用未使用或空闲频谱。因此，无线通信系统的次要用户可以在固定或移动场景中动态地形成ad-hoc网状网络通信。

26. 发明申请

US20100215378A1 Apparatus and method for interference mitigation and channel selection for visible light communication 有权
标题翻译：用于可见光通信的干扰减轻和信道选择的装置和方法
公开(公告)号：US20100215378A1
公开(公告)日：2010-08-26
申请号：US12584135
申请日：2009-09-01
申请人： Sridhar Rajagopal , Farooq Khan
发明人： Sridhar Rajagopal , Farooq Khan
IPC分类号： H04B10/00
CPC分类号： H04J14/0227 , H04B10/1129 , H04B10/1143 , H04B10/1149 , H04B10/116
摘要： A device and method for device association, interference mitigation and channel selection for use in a visible light communication (VLC) network. The method includes transmitting on every one of a plurality of supported color channels of a first device to estimate an ambient interference on each supported color channel. The method also includes receiving a transmission on at least some of the supported color channels, where the number of receiving color channels is less than or equal to the number of supported color channels of the transmitter. The method further includes calculating a channel quality index for each of the receiving color channels. The method still further includes selecting at least one of the receiving color channels of the first device to be used as a communication channel. The method also includes reporting the at least one communication channel to a second device in the VLC network. In certain embodiments, the method includes establishing guard color channels for each of the supported color channels.
摘要翻译：用于可见光通信（VLC）网络中的设备关联，干扰减轻和信道选择的设备和方法。该方法包括在第一设备的多个支持的彩色通道中的每一个上发送以估计每个支持的颜色通道上的环境干扰。所述方法还包括在至少一些所支持的颜色通道上接收传输，其中接收颜色通道的数量小于或等于发射机所支持的颜色通道的数量。该方法还包括为每个接收颜色通道计算信道质量指数。该方法还包括选择要用作通信信道的第一设备的接收彩色通道中的至少一个。该方法还包括将至少一个通信信道报告给VLC网络中的第二设备。在某些实施例中，该方法包括为每个所支持的颜色通道建立保护颜色通道。

27. 发明申请

US20100104034A1 8-Transmit antenna reference signal design for downlink communications in a wireless system 有权
标题翻译： 8 - 无线系统中下行链路通信的发射天线参考信号设计
公开(公告)号：US20100104034A1
公开(公告)日：2010-04-29
申请号：US12587164
申请日：2009-10-02
申请人： Young-Han Nam , Jianzhong Zhang , Farooq Khan , Shadi Abu-Surra
发明人： Young-Han Nam , Jianzhong Zhang , Farooq Khan , Shadi Abu-Surra
IPC分类号： H04L27/28
CPC分类号： H04L5/0007 , H04L5/0023 , H04L5/0048
摘要： Systems and methods are disclosed for mapping reference signals for antenna ports in a plurality of resource blocks among resource blocks in a subframe within an orthogonal frequency division multiplexing (OFDM) communication system. This method includes selecting at least one predetermined resource elements for transmitting in the plurality of resource blocks using a first number of antenna ports. This method also includes selecting a second number of antenna ports and mapping a plurality of reference signals relating to the second number of antenna ports using a second number of OFDM symbols.
摘要翻译：公开了用于映射正交频分复用（OFDM）通信系统内的子帧中的资源块中的多个资源块中的天线端口的参考信号的系统和方法。该方法包括使用第一数量的天线端口来选择用于在多个资源块中发送的至少一个预定资源元素。该方法还包括选择第二数量的天线端口，并且使用第二数量的OFDM符号来映射与第二数量的天线端口相关的多个参考信号。

28. 发明申请

US20100100791A1 System and method for low complexity raptor codes for multimedia broadcast/multicast service 失效
标题翻译：用于多媒体广播/多播服务的低复杂度猛禽码的系统和方法
公开(公告)号：US20100100791A1
公开(公告)日：2010-04-22
申请号：US12586864
申请日：2009-09-29
申请人： Shadi Abu-Surra , Farooq Khan , Jianzhong Zhang
发明人： Shadi Abu-Surra , Farooq Khan , Jianzhong Zhang
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/3761 , H03M13/118 , H03M13/2906 , H03M13/293 , H03M13/373 , H03M13/6525 , H03M13/653 , H04L1/0042 , H04L1/0045 , H04L1/0057
摘要： A system and method for encoding symbols in a wireless communication is provided. The system and method includes a transmitter configured to encode data transmissions. The transmitter includes a raptor encoder configured to perform a coding operation. The raptor encoder generates intermediate symbols without using a half-code such that the intermediate symbols consist of precoded symbols and parity symbols. Thereafter, the intermediate symbols are encoded using a Luby Transform to produce and output encoded symbols. The transmitter further is configured to transmit one or more of the source symbols, parity symbols or encoded symbols.
摘要翻译：提供了一种用于在无线通信中编码符号的系统和方法。该系统和方法包括被配置为对数据传输进行编码的发射机。发射机包括被配置为执行编码操作的猛禽编码器。猛禽编码器生成中间符号而不使用半码，使得中间符号由预编码符号和奇偶校验符号组成。此后，使用Luby变换对中间符号进行编码以产生并输出编码符号。发射机还被配置为发送源符号，奇偶校验符号或编码符号中的一个或多个。

29. 发明申请

US20100061287A1 Efficient coding schemes for retransmissions in multicast transmission 审中-公开
标题翻译：用于组播传输中重传的高效编码方案
公开(公告)号：US20100061287A1
公开(公告)日：2010-03-11
申请号：US12387296
申请日：2009-04-30
申请人： Kaushik Josiam , Farooq Khan , Zhouyue Pi
发明人： Kaushik Josiam , Farooq Khan , Zhouyue Pi
IPC分类号： H04H20/71
CPC分类号： H04L1/1867 , H03M13/09 , H03M13/6306 , H04L2001/0093 , H04W4/06
摘要： For use in a multicast wireless communication network comprising a plurality of base stations, various methods for encoding retransmissions to a plurality of mobile stations are provided. Each method includes transmitting a plurality of data packets to the plurality of mobile stations. Each method also includes creating at least one redundancy packet by using at least two of the plurality of data packets and binary XOR addition. Each method further includes transmitting at least one redundancy packet to the plurality of mobile stations.
摘要翻译：为了在包括多个基站的组播无线通信网络中使用，提供了用于向多个移动台进行重传的各种方法。每种方法包括向多个移动台发送多个数据分组。每个方法还包括通过使用多个数据分组中的至少两个和二进制XOR加法来创建至少一个冗余分组。每个方法还包括向多个移动站发送至少一个冗余分组。

30. 发明申请

US20100008445A1 Method and system for generating reference signals in a wireless communication system 有权
标题翻译：用于在无线通信系统中产生参考信号的方法和系统
公开(公告)号：US20100008445A1
公开(公告)日：2010-01-14
申请号：US11786549
申请日：2007-04-11
申请人： Farooq Khan
发明人： Farooq Khan
IPC分类号： H04L25/49
CPC分类号： H04B7/0613 , H04B7/0669 , H04B7/0671 , H04B7/0691
摘要： A method of generating reference signals is provided. The method includes precoding a reference signal to generate a plurality of precoded reference signals. For each precoded reference signal, a signal based on the precoded reference signal is transmitted from a corresponding physical antenna.
摘要翻译：提供了一种产生参考信号的方法。该方法包括对参考信号进行预编码以产生多个预编码参考信号。对于每个预编码的参考信号，从相应的物理天线发送基于预编码的参考信号的信号。

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