专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20060239226A1 System and method for channel estimation in a delay diversity wireless communication system 失效
公开(公告)号：US20060239226A1
公开(公告)日：2006-10-26
申请号：US11390125
申请日：2006-03-27
申请人： Farooq Khan
发明人： Farooq Khan
IPC分类号： H04Q7/00
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.

52. 发明申请

US20060209671A1 System and method for subcarrier allocation in a wireless multihop relay network 有权
标题翻译：无线多跳中继网络中子载波分配的系统和方法
公开(公告)号：US20060209671A1
公开(公告)日：2006-09-21
申请号：US11344298
申请日：2006-01-31
申请人： Farooq Khan , Joseph Cleveland
发明人： Farooq Khan , Joseph Cleveland
IPC分类号： H04B17/00 , H04J11/00
CPC分类号： H04B7/2606 , H04B7/15542 , H04L5/0007 , H04L5/0035 , H04L5/0044 , H04L5/0048 , H04L5/006
摘要： The present disclosure relates generally to a system and method for use in a communications network. In one example, the method includes dividing a total available frequency band of a first node into a multiple subcarriers using orthogonal frequency division multiplexing (OFDM). A first portion of subcarriers is allocated to a first link coupling the first node with a second node and a second portion of the subcarriers is allocated to a second link coupling the first node to a third node.
摘要翻译：本公开一般涉及在通信网络中使用的系统和方法。在一个示例中，该方法包括使用正交频分复用（OFDM）将第一节点的总可用频带划分为多个子载波。子载波的第一部分被分配给将第一节点与第二节点耦合的第一链路，并且子载波的第二部分被分配给将第一节点耦合到第三节点的第二链路。

53. 发明申请

US20060202544A1 Hydraulic control system for refuse collection vehicle 失效
公开(公告)号：US20060202544A1
公开(公告)日：2006-09-14
申请号：US11433007
申请日：2006-05-12
申请人： Farooq Khan , Kosti Shivanian
发明人： Farooq Khan , Kosti Shivanian
IPC分类号： B60P1/28
CPC分类号： B65F3/00 , B60P1/006 , B65F3/06
摘要： A front loading refuse vehicle includes at least one positive displacement pump having an associated valve system in fluid communication with drive mechanism that operates a lifting arm, packer, a rear door of the vehicle, and a hoist for a refuse storage body. The valve system includes at least one closed-centered valve with a spool mechanism having a pressure compensator to maintain a constant flow rate of fluid through the valve regardless of differential in pressure across the valve for any given position of the spool mechanism. Two pumps with two separate hydraulic control systems are used with a side loading refuse vehicle. An electrical/electronic control system including a microprocessor operates the valve systems for each vehicle.

54. 发明授权

US08774142B2 Flexible and integrated frame structure design for supporting multiple topologies with visible light communication 有权
标题翻译：灵活和集成的框架结构设计，支持可见光通信的多种拓扑结构
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。

55. 发明授权

US08553624B2 Asynchronous hybrid ARQ process indication in a MIMO wireless communication system 有权
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.

56. 发明授权

US08538335B2 Physical broadcast channel (PBCH) transmission for reliable detection of antenna configuration 有权
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.

57. 发明授权

US08526392B2 Methods and apparatus for mapping modulation symbols to resources in OFDM systems 有权
标题翻译：将调制符号映射到OFDM系统中的资源的方法和装置
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。

58. 发明授权

US08483164B2 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：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。

59. 再颁专利

USRE44105E1 Apparatus and method for FT pre-coding of data to reduce PAPR in a multi-carrier wireless network 有权
标题翻译：用于FT预编码数据以减少多载波无线网络中的PAPR的装置和方法
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。

60. 发明授权

US08379738B2 Methods and apparatus to improve performance and enable fast decoding of transmissions with multiple code blocks 有权
标题翻译：提高性能并实现具有多个码块的传输的快速解码的方法和装置
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式