公开(公告)号：US08774142B2

公开(公告)日：2014-07-08

申请号：US12875518

申请日：2010-09-03

申请人： Sridhar Rajagopal ,  Doyoung Kim ,  Ying Li ,  Farooq Khan

发明人： Sridhar Rajagopal ,  Doyoung Kim ,  Ying Li ,  Farooq Khan

IPC分类号： H04W4/00 ,  H04B7/00 ,  H04J3/26 ,  H04L12/413 ,  H04L12/403

CPC分类号： H04B10/116 ,  H04B10/114 ,  H04L69/324

摘要： For use in a visible light communication (VLC) network, a system and method for communicating a plurality of medium access control (MAC) frames. The method includes providing a single frame structure to support a plurality of topologies, the plurality of topologies including peer-to-peer, broadcast, star and visibility topologies. The method also includes transmitting a plurality of frames comprising a plurality of frame types, the plurality of frame types comprising data, beacon, command, acknowledgement, and color-visibility-dimming (CVD) frames.

摘要翻译： 用于可见光通信（VLC）网络中的用于传送多个介质访问控制（MAC）帧的系统和方法。 该方法包括提供单个帧结构以支持多个拓扑，所述多个拓扑包括点对点，广播，星形和可视性拓扑。 该方法还包括发送包括多个帧类型的多个帧，所述多个帧类型包括数据，信标，命令，确认和颜色可见度调光（CVD）帧。

公开(公告)号：US08553624B2

公开(公告)日：2013-10-08

申请号：US12222113

申请日：2008-08-01

申请人： Farooq Khan ,  Zhouyue Pi

发明人： Farooq Khan ,  Zhouyue Pi

IPC分类号： H04W4/00

CPC分类号： H04L1/1812 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04L1/0002 ,  H04L1/06 ,  H04L1/08 ,  H04L1/1803 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1867 ,  H04L1/1896

摘要： Methods and apparatus for transmitting Asynchronous Hybrid Automatic Repeat reQuest (ARQ) process identities in a wireless communication system. A linking scheme is established between at least two sets of process identities of two respective corresponding codewords. When a first process identity is selected from among a first set of process identities of a first codeword, a second process identity may be derived in dependence upon the first process identity and the established linking scheme. Finally, a first packet from the first codeword is transmitted using a first transmission channel indicated by the first process identity, and a second packet is transmitted from the second codeword using a second transmission channel indicated by the second process identity. In addition, a control message including only the first process identity is transmitted.

公开(公告)号：US08538335B2

公开(公告)日：2013-09-17

申请号：US12291274

申请日：2008-11-07

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Joonyoung Cho ,  Juho Lee

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Joonyoung Cho ,  Juho Lee

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/0053 ,  H03M13/09 ,  H04B1/40 ,  H04B7/066 ,  H04L1/0023 ,  H04L1/0028 ,  H04L5/0007 ,  H04L27/18 ,  H04L27/2627 ,  H04L27/34 ,  H04W4/06 ,  H04W28/04 ,  H04W84/042 ,  H04W88/08

摘要： Reliable detection of the configuration of transmit antennas includes obtaining a data for transmission, encoding the data, and modulating the data. During the modulating of the data, the data may be configured in such a way as to convey the configuration of the antennas through the modulation of the data. An antenna configuration is obtained by obtaining a representation of the antenna configuration, and masking the data with an error correcting code, where the mask corresponds to the antenna configuration.

公开(公告)号：US08526392B2

公开(公告)日：2013-09-03

申请号：US13007367

申请日：2011-01-14

申请人： Zhouyue Pi ,  Farooq Khan

发明人： Zhouyue Pi ,  Farooq Khan

IPC分类号： H04Q7/00

CPC分类号： H04L5/0026 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0046 ,  H04L5/0094 ,  H04L27/2602

摘要： A method for transmission, by dividing a transmission resource in a time domain subframe into a plurality of equal duration resource elements in a time and frequency domain, segregating the plurality of resource elements into a plurality of resource regions, modulating information to be transmitted to generate a sequence of modulation symbols at a transmitter, mapping the sequence of modulation symbols into the plurality of resource elements in the plurality of resource regions, and transmitting the modulation symbols via a plurality of antennas using the respective corresponding resource elements to a receiver. The mapping of the modulation symbols in at least one resource region is independent of a certain control channel information that is carried in said time domain subframe, and the mapping of the modulation symbols in at least another resource region is dependent upon said certain control channel information that is carried in said subframe. The information to be transmitted may be encoded to generate a plurality of code blocks, with roughly equal number of resource elements assigned to each of the plurality of code blocks in at least one resource region. Alternatively, the time domain subframe may contain only one resource region.

摘要翻译： 一种传输方法，通过将时域子帧中的传输资源划分成时间和频域中的多个等长时间资源元素，将多个资源元素分离成多个资源区域，调制要发送的信息以产生 在发射机处的调制符号序列，将调制符号序列映射到多个资源区域中的多个资源元素，以及经由多个天线使用各自对应的资源元素向接收机发送调制符号。 在至少一个资源区域中的调制符号的映射与在所述时域子帧中承载的特定控制信道信息无关，并且至少另一个资源区域中的调制符号的映射取决于所述某些控制信道信息 这在所述子帧中承载。 要发送的信息可以被编码以产生多个代码块，其中分配给至少一个资源区域中的多个代码块中的每一个的大致相同数量的资源元素。 或者，时域子帧可以仅包含一个资源区域。

公开(公告)号：US08483164B2

公开(公告)日：2013-07-09

申请号：US13195589

申请日：2011-08-01

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 ,  H04W4/00

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。

公开(公告)号：USRE44105E1

公开(公告)日：2013-03-26

申请号：US13011091

申请日：2011-01-21

申请人： Farooq Khan

发明人： Farooq Khan

IPC分类号： H04L27/06

CPC分类号： H04L27/2614 ,  H04L5/023

摘要： A subscriber station for use in a wireless network capable of communicating according to a multi-carrier protocol, such as OFDM or OFDMA. The subscriber station comprises a size M Fourier Transform (FFT or DFT) block for receiving input symbols and generating M FT pre-coded outputs and a size N inverse Fourier Transform (IFFT or IDFT) block capable of receiving N inputs, where the N inputs include the M FT pre-coded outputs from the size M FT block. The size N IFT block generates N outputs to be transmitted to a base station of the wireless network. The input symbols comprise user data traffic to be transmitted to the base station. The size N IFT block also receives signaling and control information on at least some of N-M inputs. The FT pre-coding generates a time-domain signal that has a relatively lower peak-to-average power ratio (PAPR).

摘要翻译： 用于能够根据诸如OFDM或OFDMA的多载波协议进行通信的无线网络中的用户台。 订户站包括用于接收输入符号并生成MFT预编码输出的大小M傅里叶变换（FFT或DFT）块和能够接收N个输入的尺寸N的傅立叶逆变换（IFFT或IDFT）块，其中N个输入 包括来自MFT块尺寸的M FT预编码输出。 大小N IFT块产生要发送到无线网络的基站的N个输出。 输入符号包括要发送到基站的用户数据业务。 尺寸N IFT块还接收关于至少一些N-M个输入的信令和控制信息。 FT预编码产生具有相对较低的峰值与平均功率比（PAPR）的时域信号。

公开(公告)号：US08379738B2

公开(公告)日：2013-02-19

申请号：US12039645

申请日：2008-02-28

申请人： Zhouyue Pi ,  Farooq Khan

发明人： Zhouyue Pi ,  Farooq Khan

IPC分类号： H04K1/10

CPC分类号： H04L1/0041 ,  G06F11/1004 ,  H03M13/09 ,  H04B1/7107 ,  H04B7/0439 ,  H04B7/0452 ,  H04B7/068 ,  H04J11/004 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/005 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0618 ,  H04L1/1819 ,  H04L1/1867 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2647

摘要： A method includes separating resource elements from multiple code blocks into different groups, and decoding the code bits of the resource elements within each group without waiting for a completed reception of a transport block to start decoding.A method includes separating coded bits from multiple code blocks into different groups, and decoding the code blocks containing coded bits within each group. A first CRC is attached to the transport block and a second CRC is attached to at least one code block from the transport block.An improved channel interleaver design method including mapping from coded bits of different code blocks to modulation symbols, and mapping from modulation symbols to time, frequency, and spatial resources, to make sure each code block to get roughly the same level of protection.

摘要翻译： 一种方法包括将多个码块中的资源元素分离成不同的组，并对每个组中的资源元素的码位进行解码，而不用等待传输块的完整接收开始解码。 一种方法包括将多个码块中的编码比特分离成不同的组，并对包含每个组内的编码比特的码块进行解码。 第一CRC附加到传输块，并且第二CRC附加到来自传输块的至少一个代码块。 一种改进的信道交织器设计方法，包括从不同码块的编码比特到调制符号的映射，以及从调制符号到时间，频率和空间资源的映​​射，以确保每个码块获得大致相同的保护级别。

公开(公告)号：US08374257B2

公开(公告)日：2013-02-12

申请号：US11738594

申请日：2007-04-23

申请人： Farooq Khan ,  Jiann-An Tsai ,  Cornelius Van Rensberg

发明人： Farooq Khan ,  Jiann-An Tsai ,  Cornelius Van Rensberg

IPC分类号： H04L25/38

CPC分类号： H04B7/0669 ,  H04L1/0625 ,  H04L1/0631

摘要： The present disclosure relates generally to a system and method for superposition coding and interference cancellation in a multiple input multiple output (MIMO) system. In one example, the method includes demultiplexing a signal of a user into at least first and second signal portions and demultiplexing a signal of another user into at least third and fourth signal portions. Superposition coding is performed on the first and third signal portions to form a first composite signal and performed on the second and fourth signal portions to form a second composite signal. The first composite signal is transmitted via at least one antenna of a MIMO system and the second composite signal is transmitted via at least another antenna of the MIMO system.

摘要翻译： 本公开一般涉及在多输入多输出（MIMO）系统中叠加编码和干扰消除的系统和方法。 在一个示例中，该方法包括将用户的信号解复用为至少第一和第二信号部分，并将另一用户的信号解复用为至少第三和第四信号部分。 对第一和​​第三信号部分执行叠加编码以形成第一复合信号，并在第二和第四信号部分上执行以形成第二复合信号。 第一复合信号经由MIMO系统的至少一个天线发送，并且第二复合信号经由MIMO系统的至少另一个天线发送。

公开(公告)号：US08368594B2

公开(公告)日：2013-02-05

申请号：US12816864

申请日：2010-06-16

申请人： Farooq Khan ,  Sridhar Rajagopal ,  Baowei Ji

发明人： Farooq Khan ,  Sridhar Rajagopal ,  Baowei Ji

IPC分类号： G01S1/08

CPC分类号： G01S19/25 ,  G01S19/14

摘要： A method and apparatus for generating a bar code and for using a bar code to assist with positioning are provided. The method for generating a bar code to assist with positioning includes obtaining Global Positioning System (GPS) assistance data, generating a bar code with the GPS assistance data encoded therein, and displaying the bar code. The method for using a bar code to assist with positioning includes scanning a bar code, obtaining GPS assistance data from the scanned bar code, receiving and locking onto one or more GPS signals by using the GPS assistance data, and determining a position using the received one or more GPS signals.

摘要翻译： 提供了用于产生条形码和使用条形码来协助定位的方法和装置。 用于产生条形码以辅助定位的方法包括获得全球定位系统（GPS）辅助数据，产生其中编码的GPS辅助数据的条形码，并显示条形码。 使用条形码来帮助定位的方法包括扫描条形码，从扫描的条形码获得GPS辅助数据，通过使用GPS辅助数据接收和锁定到一个或多个GPS信号上，并使用接收到的位置来确定位置 一个或多个GPS信号。

公开(公告)号：US08340199B2

公开(公告)日：2012-12-25

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 ,  H04B7/02

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。