公开(公告)号：US20150222399A1

公开(公告)日：2015-08-06

申请号：US14169662

申请日：2014-01-31

申请人： Fang-Chen CHENG ,  Said TATESH

发明人： Fang-Chen CHENG ,  Said TATESH

IPC分类号： H04L5/00 ,  H04W24/08 ,  H04W48/12

CPC分类号： H04L5/0035 ,  H04L5/0051 ,  H04W24/02 ,  H04W24/08 ,  H04W48/08 ,  H04W48/12

摘要： At least one example embodiment discloses a method of coordinating a change from a first operating state to a second operating state of a selected cell in a system. The method includes changing to an intermediate state from the first operating state based on first signaling information exchanged between a serving cell of a user equipment (UE) and the selected cell in the first operating state and at least one signal received by the selected cell in the first operating state from the UE, the first operating state being a dormant state and operating in the intermediate state based on second signaling information between the serving cell and the selected cell, third signaling information between the serving cell and the UE and transmission information between the UE and the selected cell, the intermediate state being between the first operating state and the second operating state, the second operating state being an on state where the selected cell serves the UE.

摘要翻译： 至少一个示例性实施例公开了一种协调系统中所选小区的第一操作状态到第二操作状态的改变的方法。 该方法包括：基于在第一操作状态下在用户设备（UE）的服务小区与所选小区之间交换的第一信令信息和从所选小区接收的至少一个信号，从第一操作状态切换到中间状态 来自UE的第一操作状态，第一操作状态是休眠状态，并且基于服务小区和所选小区之间的第二信令信息在中间状态下操作，服务小区和UE之间的第三信令信息和 所述UE和所选小区，所述中间状态在所述第一操作状态和所述第二操作状态之间，所述第二操作状态是所选小区服务于所述UE的接通状态。

公开(公告)号：US09100146B2

公开(公告)日：2015-08-04

申请号：US13415142

申请日：2012-03-08

申请人： Jung Ah Lee ,  Philippe Sehier ,  Jean-Pierre Balech ,  Fang-Chen Cheng

发明人： Jung Ah Lee ,  Philippe Sehier ,  Jean-Pierre Balech ,  Fang-Chen Cheng

IPC分类号： H04B7/06 ,  H04W36/06 ,  H04L1/00 ,  H04W16/28 ,  H01Q1/24 ,  H04W72/12

CPC分类号： H04L1/0026 ,  H01Q1/246 ,  H04L1/0035 ,  H04W16/28 ,  H04W36/06 ,  H04W72/12

摘要： Embodiments of the claimed subject matter provide a method and apparatus for virtual sectorization using an active antenna array. Embodiments of the apparatus include a transmitter for providing signals to an active antenna array. The signals cause the active antenna array to transmit a first reference signal to a first sector indicated to user equipment within the first sector by a sector identifier. The signals also cause the active antenna array to transmit a plurality of second reference signals into a corresponding plurality of second virtual sectors that overlap the first sector. The apparatus also includes a scheduler for scheduling transmission to user equipment based on feedback generated by the user equipment using the first reference signal or the second reference signals.

摘要翻译： 所要求保护的主题的实施例提供了一种使用有源天线阵列进行虚拟扇区化的方法和装置。 该装置的实施例包括用于向有源天线阵列提供信号的发射机。 信号使有源天线阵列通过扇区标识符将第一参考信号发送到指示给第一扇区内的用户设备的第一扇区。 信号还使有源天线阵列将多个第二参考信号发送到与第一扇区重叠的对应的多个第二虚拟扇区中。 该装置还包括调度器，用于基于使用第一参考信号或第二参考信号的用户设备产生的反馈来调度对用户设备的传输。

公开(公告)号：US20140177581A1

公开(公告)日：2014-06-26

申请号：US14234523

申请日：2012-07-23

申请人： Xiaobo Zhang ,  Fang-Chen Cheng

发明人： Xiaobo Zhang ,  Fang-Chen Cheng

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L1/0038 ,  H04L1/0046 ,  H04L5/0007 ,  H04L5/0053

摘要： The invention proposes a method of and apparatus for a pre-coded physical downlink control channel reference signal and blind decoding. In a design of the reference signal, the demodulation reference signal is used for demodulating physical downlink control channel signaling, wherein the physical downlink control channel signaling is embedded in a physical downlink shared channel, an the demodulation reference signal is included in a control channel element. In a method for a user equipment to perform blind decoding, the user equipment obtains blind decoding indication information from a base station, the blind decoding indication information including an indication of a search space in which the user equipment performs the blind decoding, wherein the search space includes a control channel element of a traditional physical downlink control channel and further includes a control channel element of a pre-coded physical downlink control channel; and performs blind decoding for the number of searches indicated by the blind decoding indication information in the search space indicated by the blind decoding indication information, according to the blind decoding indication information.

摘要翻译： 本发明提出了一种预编码物理下行链路控制信道参考信号和盲解码的方法和装置。 在参考信号的设计中，解调参考信号用于解调物理下行链路控制信道信令，其中物理下行链路控制信道信令被嵌入在物理下行链路共享信道中，解调参考信号被包括在控制信道元素 。 在用户设备执行盲解码的方法中，用户设备从基站获取盲解码指示信息，盲解码指示信息包括用户设备执行盲解码的搜索空间的指示，其中搜索 空间包括传统物理下行链路控制信道的控制信道单元，并且还包括预编码的物理下行链路控制信道的控制信道单元; 并且根据盲解码指示信息对由盲解码指示信息指示的搜索空间中的盲解码指示信息指示的搜索次数执行盲解码。

公开(公告)号：US08737251B2

公开(公告)日：2014-05-27

申请号：US13423369

申请日：2012-03-19

申请人： Matthew Baker ,  Fang-Chen Cheng ,  Sigen Ye

发明人： Matthew Baker ,  Fang-Chen Cheng ,  Sigen Ye

IPC分类号： H04L12/26

CPC分类号： H04W72/042 ,  H04W48/12

摘要： In one embodiment, the method of configuring a common search space (CSS) for at least one user equipment (UE) in a wireless communication system with at least a first type of physical downlink control channel includes broadcasting at least one parameter of a common search space (CSS), none of the parameters being the number of orthogonal frequency-division multiplex (OFDM) symbols. In one embodiment, a method of configuring a default user equipment-specific search space (USS) for a user equipment (UE) in a wireless communication system with at least a first type of physical downlink control channel includes broadcasting at least one parameter of the default USS, none of the parameters being based on an identifier of the UE. The broadcasting may occur before UE-specific signaling. In one embodiment, a method of configuring or reconfiguring the USS may include transmitting at least one parameter of the USS with UE-specific signaling.

摘要翻译： 在一个实施例中，在具有至少第一类型的物理下行链路控制信道的无线通信系统中为至少一个用户设备（UE）配置公共搜索空间（CSS）的方法包括：广播共同搜索的至少一个参数 空间（CSS），没有参数是正交频分复用（OFDM）符号的数量。 在一个实施例中，在具有至少第一类型的物理下行链路控制信道的无线通信系统中配置针对用户设备（UE）的默认用户设备特定搜索空间（USS）的方法包括：广播至少一个 默认USS，这些参数都不是基于UE的标识符。 广播可能发生在UE特定信令之前。 在一个实施例中，配置或重新配置USS的方法可以包括用UE专用信令来发送USS的至少一个参数。

公开(公告)号：US08675762B2

公开(公告)日：2014-03-18

申请号：US13098693

申请日：2011-05-02

申请人： Fang-Chen Cheng ,  Matthew P. J. Baker

发明人： Fang-Chen Cheng ,  Matthew P. J. Baker

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L25/0391 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0473 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L25/03343

摘要： The present invention provides a method of transforming pre-coded signals for transmission over an air interface in a MIMO wireless communication system. Embodiments of the method may include applying, at a transmitter, a transform matrix and a pre-coding matrix to a signal prior to transmitting the signal using a plurality of antennas deployed in a first antenna configuration. The pre-coding matrix is selected from a codebook defined for a second antenna configuration deployed in a non-scattering environment. The transform matrix is defined based on the first antenna configuration and a scattering environment associated with the transmitter.

摘要翻译： 本发明提供一种用于在MIMO无线通信系统中通过空中接口进行变换预编码信号以进行传输的方法。 该方法的实施例可以包括在发射机之前，使用在第一天线配置中部署的多个天线发送信号，在发射机处应用变换矩阵和预编码矩阵。 从为在非散射环境中部署的第二天线配置定义的码本中选择预编码矩阵。 基于第一天线配置和与发射机相关联的散射环境来定义变换矩阵。

公开(公告)号：US20140064263A1

公开(公告)日：2014-03-06

申请号：US13598199

申请日：2012-08-29

申请人： Fang-Chen Cheng ,  Said Tatesh

发明人： Fang-Chen Cheng ,  Said Tatesh

IPC分类号： H04J3/06

CPC分类号： H04W56/002 ,  H04W8/005 ,  H04W76/14

摘要： Embodiments of the claimed subject matter provide a method and apparatus for device discovery in device-to-device (D2D) communication. One embodiment of the method includes generating first information indicative of a first synchronization signal in response to a request from a first user equipment to be authenticated for D2D communication with one or more second user equipment. The first information corresponds to a sequence used to generate a primary synchronization signal for transmission by a serving cell for the first user equipment. This embodiment of the method also includes providing the first information to the first user equipment so that the first user equipment can transmit the first synchronization signal.

摘要翻译： 所要求保护的主题的实施例提供了在设备到设备（D2D）通信中用于设备发现的方法和装置。 所述方法的一个实施例包括响应于来自第一用户设备的请求生成指示第一同步信号的第一信息以被认证用于与一个或多个第二用户设备的D2D通信。 第一信息对应于用于生成用于第一用户设备的服务小区进行传输的主同步信号的序列。 该方法的该实施例还包括向第一用户设备提供第一信息，使得第一用户设备可以发送第一同步信号。

公开(公告)号：US20130250864A1

公开(公告)日：2013-09-26

申请号：US13428503

申请日：2012-03-23

申请人： Min Zhang ,  Matthew P.J. Baker ,  Fang-Chen Cheng

发明人： Min Zhang ,  Matthew P.J. Baker ,  Fang-Chen Cheng

IPC分类号： H04W72/04 ,  H04W88/00

CPC分类号： H04L5/0092 ,  H04B7/024 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0044 ,  H04W72/042 ,  H04W72/0426

摘要： Embodiments of the claimed subject matter provide a method and apparatus coordinating downlink multipoint transmissions. One embodiment of the method includes transmitting, from a first base station, first information indicating a first constraint on a starting position for downlink data transmission by the first base station or one or more second base stations. This embodiment of the method also includes transmitting, from the first base station, second information that includes a bit. A combination of the bit and the first information indicates the starting position for the downlink data transmission.

摘要翻译： 所要求保护的主题的实施例提供协调下行链路多点传输的方法和装置。 该方法的一个实施例包括从第一基站向第一基站或一个或多个第二基站发送指示用于下行链路数据传输的起始位置的第一约束的第一信息。 该方法的该实施例还包括从第一基站发送包括一位的第二信息。 位和第一信息的组合表示下行数据传输的起始位置。

公开(公告)号：US20130195100A1

公开(公告)日：2013-08-01

申请号：US13361122

申请日：2012-01-30

申请人： Matthew Baker ,  Fang-Chen Cheng ,  Sigen Ye ,  Seau Sian Lim

发明人： Matthew Baker ,  Fang-Chen Cheng ,  Sigen Ye ,  Seau Sian Lim

IPC分类号： H04W92/06 ,  H04W88/02 ,  H04W56/00

CPC分类号： H04L5/0048 ,  H04L5/0094

摘要： The method includes determining which of one or more physical resource elements are to include a reference signal. The method includes generating a signaling message including information indicating the determined physical resource elements that are to include a reference signal, and transmitting the signaling message to user equipment.

摘要翻译： 该方法包括确定一个或多个物理资源元素中的哪一个将包括参考信号。 该方法包括产生信令消息，包括指示要包括参考信号的所确定的物理资源元素的信息，以及向用户设备发送信令消息。

公开(公告)号：US08412249B2

公开(公告)日：2013-04-02

申请号：US11313258

申请日：2005-12-20

申请人： Fang-Chen Cheng ,  Shupeng Li ,  Lei Song

发明人： Fang-Chen Cheng ,  Shupeng Li ,  Lei Song

IPC分类号： H04Q7/20

CPC分类号： H04W52/346 ,  H04L5/0007 ,  H04L5/0044 ,  H04W72/082 ,  H04W72/10 ,  H04W72/12

摘要： The present invention provides a method involving at least one base station and at least one mobile unit. The method includes determining, based on an interference mitigation pattern, a plurality of transmission powers associated with a corresponding plurality of subcarriers available to said at least one base station. The method also includes determining a plurality of priority metrics associated with the plurality of subcarriers and the at least one mobile unit, and assigning at least one of the plurality of subcarriers to the at least one mobile unit based on the plurality of priority metrics and the interference mitigation pattern.

摘要翻译： 本发明提供一种涉及至少一个基站和至少一个移动单元的方法。 该方法包括基于干扰减轻模式来确定与可用于所述至少一个基站的相应多个子载波相关联的多个发射功率。 所述方法还包括确定与所述多个子载波和所述至少一个移动单元相关联的多个优先级度量，以及基于所述多个优先级度量将所述多个子载波中的至少一个子载波分配给所述至少一个移动单元，并且 干扰减轻模式。

公开(公告)号：US08345804B2

公开(公告)日：2013-01-01

申请号：US11946541

申请日：2007-11-28

申请人： Lei Song ,  Fang-Chen Cheng ,  Henry H. Ye

发明人： Lei Song ,  Fang-Chen Cheng ,  Henry H. Ye

IPC分类号： H03D1/00

CPC分类号： H04L27/265 ,  H04L27/2613 ,  H04L27/2652

摘要： A low complexity RACH preamble detector is described herein. The RACH preamble detection algorithm uses the peak detection of the time domain correlation function through frequency domain processing. The frequency domain processing considers the reference signals generated directly from frequency domain CAZAC sequence or time domain CAZAC sequence with DFT conversion. A low-complexity poly-phase LPF along with down sampling is implemented before the FFT to reduce the required length of the long FFT operation N-folded.

摘要翻译： 本文描述了低复杂度RACH前导码检测器。 RACH前导码检测算法通过频域处理使用时域相关函数的峰值检测。 频域处理考虑直接从频域CAZAC序列或时域CAZAC序列生成的参考信号，并进行DFT转换。 在FFT之前实现了低复杂度多相LPF以及下采样，以减少N-fold的长FFT运算所需的长度。