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21.发明公开METHODS AND APPARATUS TO IDENTIFY THE ACCESSIBILITY OF FEMTO-BASE STATIONS IN COMMUNICATION SYSTEMS 审中-公开方法和设备身份查验的毫微微基站在通信系统中的可及
公开(公告)号：EP2359665A4
公开(公告)日：2014-05-07
申请号：EP09833634
申请日：2009-12-16
发明人： LI YING , KHAN FAROOQ , PI ZHOUYUE , JI BAOWEI
IPC分类号： H04W88/02 , H03M13/09 , H04J13/10 , H04L1/00 , H04L1/16 , H04L5/00 , H04L25/03 , H04L27/26 , H04W12/06 , H04W88/08
CPC分类号： H04L1/0061 , H03M13/09 , H04J13/10 , H04L1/0072 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/2655 , H04L2001/0093
摘要： A system and method for identifying the accessibility of femto base stations in a communication system. The system and method includes a plurality of macro base stations, open-access femto base stations and femto base stations with different subscriber groups. At least one of the base stations includes a transmitter configured to apply a base station identifier, such as a closed subscription group identifier, as a cyclic redundancy check (CRC) mask to XOR (exclusive OR) the CRC of a broadcast channel communication or an input to generate a scrambling sequence to the broadcast channel communication.
摘要翻译： 一种用于识别毫微微基站的可访问性的通信系统中的系统和方法，该系统和方法包括宏基站，开放接入毫微微基站，并与不同的用户组毫微微基站的复数。 至少所述基站中的一个包括被配置为应用的基站标识符的发送器，检查作为封闭订阅组标识符，如循环冗余校验（CRC）掩码来XOR（异或）在广播信道的通信的或CRC 输入以产生加扰序列的广播信道的通信。
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22.发明公开SYSTEM AND METHOD FOR CHANNEL ESTIMATION IN A DELAY DIVERSITY WIRELESS COMMUNICATION SYSTEM 审中-公开SYSTEM AND METHOD FOR信道估计研究延迟分集无线通信系统
公开(公告)号：EP1886454A4
公开(公告)日：2014-02-26
申请号：EP06732907
申请日：2006-05-08
发明人： KHAN FAROOQ
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.
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23.发明公开METHODS FOR TRANSMITTING MULTIPLE ACKNOWLEDGMENTS IN SINGLE CARRIER FDMA SYSTEMS 审中-公开法解EINGTRÄGER-FDMA系统正在发送代言更多
公开(公告)号：EP2135374A4
公开(公告)日：2013-10-09
申请号：EP08723460
申请日：2008-03-13
发明人： KHAN FAROOQ , LEE JU-HO , PI ZHOUYUE
IPC分类号： H04J1/02 , H04B7/04 , H04B7/06 , H04B7/208 , H04B7/24 , H04L1/12 , H04L1/16 , H04L1/18 , H04L5/00 , H04L5/02 , H04L27/34
CPC分类号： H04L5/023 , H04B7/0417 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/1692 , H04L1/1854 , H04L5/0005 , H04L5/0053 , H04L5/0055 , H04L2001/125
摘要： A mapping scheme between a plurality of control channel element sets and a plurality of acknowledgement channel resource sets is established. Each of the control channel element sets includes at least one control channel element, and each of the acknowledgement channel resource sets includes at least one acknowledgement channel resource. In accordance with a scheduling grant transmitted using a control channel element set selected from the plurality of control channel element sets, a data packet is transmitted via a second node to a first node. Then, an acknowledgement channel message is transmitted via the first node to the second node by using at least one acknowledgement channel resource selected from the acknowledgement channel resource set that correspond to the control channel element set used for transmitting the scheduling grant in accordance with the mapping scheme. The acknowledgement channel message may be one of a positive acknowledgement message and a negative acknowledgement message.
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24.发明公开APPARATUS AND METHOD FOR SWITCHING BETWEEN SINGLE USER AND MULTI-USER MIMO OPERATION IN A WIRELESS NETWORK 有权DEVICE AND METHOD FOR之间切换单用户和多用户MIMO操作IN A WIRELESS NETWORK
公开(公告)号：EP2013985A4
公开(公告)日：2013-08-07
申请号：EP07746246
申请日：2007-04-27
CPC分类号： H04L1/1657 , H04B7/0417 , H04B7/0452 , H04B7/0632 , H04B7/0689 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0028 , H04L1/06 , H04L1/1812 , H04L1/1835 , H04L1/1887 , H04W28/18
摘要： A base station for use in a wireless network, wherein the base station transmits in a downlink to a plurality of subscriber stations using a plurality of antennas according to a multiple input, multiple-output (MIMO) protocol. During a first downlink subframe, the base station operates in single-user MIMO mode in which the base station transmits a first data subpacket to a first subscriber station using a first antenna and transmits a second data subpacket to the first subscriber station using a second antenna. During a second downlink subframe following the first downlink subframe, the base station operates in multi-user MIMO mode in which the base station transmits a third data subpacket to the first subscriber station using the first antenna and transmits a fourth data subpacket to a second subscriber station using the second antenna.
摘要翻译： 一种基站，在无线网络中使用，worin基站在下行链路中发送到用户台的多个使用的天线gemäß一个多元化的多输入，多输出（MIMO）协议。 在第一下行链路子帧中，基站在其中基站利用第一天线的第一数据子分组到第一订户站和发送使用第二天线的第二数据子分组到所述第一用户台的单用户MIMO模式进行操作 ， 在第二下行链路子帧之后的第一个下行链路子帧中，基站在其中基站发送第三数据子分组以使用所述第一天线的第一用户站，并发送第四数据子分组到第二订户的多用户MIMO模式进行操作 站使用所述第二天线。
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25.发明公开METHODS AND APPARATUS FOR MAPPING MODULATION SYMBOLS TO RESOURCES IN OFDM SYSTEMS 审中-公开VERFAHREN UND VORRICHTUNG ZUR ABBILDUNG VON MODULATIONSSYMBOLEN AUF RESSOURCEN IN OFDM-SYSTEMEN
公开(公告)号：EP2163017A4
公开(公告)日：2016-10-05
申请号：EP08765980
申请日：2008-05-29
发明人： KHAN FAROOQ , PI ZHOUYUE
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域和频域中的多个相等持续时间的资源元素，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，并且通过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。 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 在所述子帧中承载。 要发送的信息可以被编码以产生多个码块，其中分配给至少一个资源区域中的多个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。
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公开(公告)号：EP2769482A4
公开(公告)日：2015-11-25
申请号：EP12841629
申请日：2012-10-19
发明人： PI ZHOUYUE , KHAN FAROOQ , LI YING , ABU-SURRA SHADI , RAJAGOPAL SRIDHAR
CPC分类号： H04W28/0289 , H04B7/15507 , H04B7/1555
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27.发明公开APPARATUS AND METHOD FOR LOW COMPLEXITY SPATIAL DIVISION MULTIPLE ACCESS IN A MILLIMETER WAVE MOBILE COMMUNICATION SYSTEM 有权装置及方法的毫米波无线通信系统中的低复杂度空间复用多TOUCH
公开(公告)号：EP2813041A4
公开(公告)日：2015-11-18
申请号：EP13747043
申请日：2013-02-06
发明人： KHAN FAROOQ , RAJAGOPAL SRIDHAR , SHADI ABU-SURRA , PI ZHOUYUE
CPC分类号： H04B7/0456 , H01Q3/26 , H01Q21/245 , H04B7/0408 , H04B7/0452 , H04B7/0617 , H04B7/0697
摘要： A system is configured to perform Spatial Division Multiple Access. The system includes at least one transmitter or receiver capable of polarization alignment. The transmitter includes a baseband precoder configured to precode a signal, an array of sub-array antennas and a plurality of radio frequency (RF) chains. Each RF chain is coupled to a respective antenna sub-array of the array of antennas. The transmitter is configured to perform a method that includes precoding, by a baseband precoder, a signal for spatial division multiple access (SDMA). The method also includes applying, by each of the plurality of radio frequency (RF) chains, a phase shift and beamforming weight to the signal and transmitting the phase shifted and weighted signal by an array of sub-array antennas.
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28.发明公开
公开(公告)号：EP2140576A4
公开(公告)日：2015-09-09
申请号：EP08741554
申请日：2008-04-24
发明人： KHAN FAROOQ , PI ZHOUYUE , ZHANG JIANZHONG
CPC分类号： H04L27/2608 , H04B7/0671 , H04B7/068 , H04L1/0606 , H04L1/1607 , H04L1/1858 , H04L5/0055
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29.发明公开APPARATUS AND METHOD FOR INTERFERENCE MITIGATION AND CHANNEL SELECTION FOR VISIBLE LIGHT COMMUNICATION 有权DEVICE AND METHOD FOR可见光通信干扰和信道选择
公开(公告)号：EP2399352A4
公开(公告)日：2015-02-18
申请号：EP10743969
申请日：2010-02-19
发明人： RAJAGOPAL SRIDHAR , KHAN FAROOQ
IPC分类号： H04B10/112 , H04B10/114 , H04B10/116 , H04J14/02
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.
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30.发明公开FLEXIBLE AND INTEGRATED FRAME STRUCTURE DESIGN FOR SUPPORTING MULTIPLE TOPOLOGIES WITH VISIBLE LIGHT COMMUNICATION 审中-公开器设计灵活的集成框架结构多种拓扑结构随着通信关于可见光
公开(公告)号：EP2478651A4
公开(公告)日：2015-01-28
申请号：EP10817429
申请日：2010-09-16
发明人： RAJAGOPAL SRIDHAR , KIM DO-YOUNG , LI YING , KHAN FAROOQ
IPC分类号： H04B10/114 , H04B10/116
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.
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