利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

1444 条记录 (耗时 0.031 秒)

    Time-frequency decoding unit
    23.
    发明授权
    Time-frequency decoding unit 有权
    时频解码单元

    公开(公告)号：US09178560B1

    公开(公告)日：2015-11-03

    申请号：US14606386

    申请日：2015-01-27

    申请人： Samuel Kerhuel

    发明人： Samuel Kerhuel

    IPC分类号： H04B1/00 ,  H04B1/7073 ,  H04J13/00 ,  H04B1/709 ,  H04J13/16 ,  H04J13/20

    CPC分类号： H04J13/00 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/709 ,  H04J13/004 ,  H04J13/0059 ,  H04J13/0062 ,  H04J13/16 ,  H04J13/20 ,  H04J2013/0096 ,  H04J2013/165 ,  H04L5/0026 ,  H04L5/0048 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2634 ,  H04L27/2647

    摘要： A decoding unit for decoding a signal modulating a plurality of symbols wherein each symbol carries a plurality of information which are code-division multiplexed in the time domain and in the frequency domain and wherein each information is associated with a known sequence of phase rotations, the phase in the known sequence varying deterministically between the plurality of symbols.The decoding unit first performs a phase rotation of the received plurality of symbols, then performs the time-domain despreading operation and finally performs the frequency-domain despreading operation.A processor, a receiver, a method and a computer program are also claimed.

    摘要翻译： 一种解码单元，用于对调制多个符号的信号进行解码，其中每个符号携带在时域和频域中进行码分复用的多个信息，并且其中每个信息与已知的相位序列相关联， 已知序列中的相位在多个符号之间确定地变化。 解码单元首先执行所接收的多个符号的相位旋转，然后执行时域解扩操作，并最终执行频域解扩操作。 还要求一种处理器，接收器，方法和计算机程序。

    APPARATUS AND METHODS FOR NETWORK ASSISTED HYBRID NETWORK OPERATION
    24.
    发明申请
    APPARATUS AND METHODS FOR NETWORK ASSISTED HYBRID NETWORK OPERATION 有权
    网络辅助混合网络运行的装置和方法

    公开(公告)号：US20150289286A1

    公开(公告)日：2015-10-08

    申请号：US14685537

    申请日：2015-04-13

    申请人： Apple Inc.

    发明人： Li SU ,  Madhusudan CHAUDHARY ,  Jianxiong SHI ,  Longda XING

    IPC分类号： H04W72/12 ,  H04J13/00 ,  H04W68/00 ,  H04W24/10 ,  H04W76/06

    CPC分类号： H04W72/1242 ,  H04J13/00 ,  H04W24/10 ,  H04W68/005 ,  H04W72/10 ,  H04W72/12 ,  H04W72/1215 ,  H04W72/1247 ,  H04W76/34

    摘要： Methods and apparatus for minimizing scheduling collisions between networks. In one embodiment, the networks are substantially unsynchronized, and during hybrid network operation (e.g., LTE and CDMA 1X operation), a mobile device can place CDMA 1X voice calls while registered with the LTE network. However, since the LTE and CDMA 1X networks are not coordinated, the mobile device will experience scheduling collisions. In one variant, the LTE network accounts for predictable behaviors (such as CDMA 1X paging), and schedules low priority tasks during likely time interval conflicts. Consequently, even though the mobile device must tune away from the LTE network to check CDMA 1X pages, overall LTE network performance is minimally affected.

    摘要翻译： 用于最小化网络之间的调度冲突的方法和装置。 在一个实施例中，网络基本上是不同步的，并且在混合网络操作（例如，LTE和CDMA 1X操作）期间，移动设备可以在向LTE网络注册的同时放置CDMA 1X语音呼叫。 然而，由于LTE和CDMA 1X网络不协调，所以移动设备将经历调度冲突。 在一个变型中，LTE网络考虑到可预测的行为（例如CDMA 1X寻呼），并且在可能的时间间隔冲突期间调度低优先级任务。 因此，即使移动设备必须远离LTE网络，以检查CDMA 1X页面，整体LTE网络性能受到最小的影响。

    METHOD FOR GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR TMBOC(6,1,4/33) SIGNAL BASED ON EQUALLY SPLIT PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING TMBOC SIGNALS AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM
    27.
    发明申请
    METHOD FOR GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR TMBOC(6,1,4/33) SIGNAL BASED ON EQUALLY SPLIT PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING TMBOC SIGNALS AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM 有权
    用于生成TMBOC（6,1,4 / 33）信号基于均匀分割部分相关函数的无关联函数的方法，用于跟踪TMBOC信号和卫星导航信号接收系统的装置

    公开(公告)号：US20150222415A1

    公开(公告)日：2015-08-06

    申请号：US14546364

    申请日：2014-11-18

    申请人： Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

    发明人： Keun Hong CHAE ,  Seok Ho YOON

    IPC分类号： H04L7/00 ,  H04B1/16 ,  H03L7/06

    CPC分类号： H04B1/709 ,  G01S19/24 ,  G01S19/30 ,  H03L7/06 ,  H03L7/07 ,  H03L7/0812 ,  H03L7/093 ,  H03L7/0991 ,  H04B1/16 ,  H04B1/707 ,  H04J13/00 ,  H04L27/00 ,  H04L27/2272

    摘要： A method of generating the correlation function of a TMBOC(6,1,4/33) signal according to the present invention includes generating a signal delayed based on a phase delay 2 with respect to a signal pulse train of a TMBOC(6,1,4/33)-modulated received signal, generating 12 partial correlation functions by performing the autocorrelation operation of the received signal and the delayed signal with respect to a total time T(OT) , generating a sub-correlation function by performing an elimination operation of sixth and seventh partial correlation functions, and generating a main correlation function by summing results obtained by performing elimination operations between the remaining 10 partial correlation functions, excluding the sixth and seventh early partial correlation functions from the 12 partial correlation functions, and the sub-correlation function. The elimination operation is an operation satisfying algebraic relations in which |A|+|B|−|A−B|=0 when real numbers A and B are AB≦0 and |A|+|B|−|A−B|>0 when the real numbers A and B are AB>0 .

    摘要翻译： 根据本发明的产生TMBOC（6,1,4 / 33）信号的相关函数的方法包括：基于相对于TMBOC（6,1）的信号脉冲串的相位延迟2生成延迟的信号 ，4/33）调制的接收信号，通过相对于总时间T（OT）执行接收信号和延迟信号的自相关操作来产生12个部分相关函数，通过执行消除操作产生子相关函数 第六和第七部分相关函数，并且通过对从12个部分相关函数中排除第六和第七早期部分相关函数之外的剩余的10个部分相关函数之间的消除操作获得的结果求和得到主相关函数， 相关函数。 当实数A和B为AB＆nlE时，消除操作是满足代数关系的操作，其中| A | + | B | - | A-B | = 0; 0和| A | + | B | - | A-B | > 0，当实数A和B为AB> 0时。

    Transmission apparatus, transmission method, reception apparatus and reception method
    28.
    发明授权
    Transmission apparatus, transmission method, reception apparatus and reception method 有权
    传输装置，传输方法，接收装置和接收方法

    公开(公告)号：US09094155B2

    公开(公告)日：2015-07-28

    申请号：US13477818

    申请日：2012-05-22

    申请人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04J13/00 ,  H04L5/00

    CPC分类号： H04L5/0023 ,  H04J13/00 ,  H04J13/004 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0051

    摘要： A disclosed transmission apparatus includes a multiplexing portion that multiplexes a common pilot channel, a shared control channel, and a shared data channel; a symbol generation portion that performs an inverse Fourier transformation on the multiplexed signal so as to generate a symbol; and a transmission portion that transmits the generated symbol. The multiplexing portion multiplexes the shared control channel including control information necessary for demodulation of the shared data channel including a payload and the common pilot channel to be used by plural users in a frequency direction, and the shared data channel in a time direction with respect to the common pilot channel and the shared control channel. Even when the number of symbols composing a transmission time interval (TTI) is reduced, transmission efficiency of channels excluding the common pilot channel can be maintained by reducing insertion intervals of the common pilot channel accordingly.

    摘要翻译： 所公开的发送装置包括复用公共导频信道，共享控制信道和共享数据信道的复用部分; 符号生成部，对所述多路复用信号进行逆傅里叶变换，生成符号; 以及发送所生成的符号的发送部。 所述多路复用部分复用所述共享控制信道，所述共享控制信道包括解调包括有效载荷的共享数据信道和所述多个用户在频率方向上使用的公共导频信道所需的控制信息，并且所述共享数据信道在时间方向上相对于 公共导频信道和共享控制信道。 即使构成传输时间间隔（TTI）的符号的数量减少，也可以通过相应地减小公共导频信道的插入间隔来维持除公共导频信道之外的信道的传输效率。

    Methods and apparatus for code division multiple access communication using code book that provides reduced peak-to-average power ratio
    29.
    发明授权
    Methods and apparatus for code division multiple access communication using code book that provides reduced peak-to-average power ratio 有权
    使用代码簿进行码分多址通信的方法和装置，其提供降低的峰值与平均功率比

    公开(公告)号：US09094144B2

    公开(公告)日：2015-07-28

    申请号：US10835085

    申请日：2004-04-29

    申请人： Alexei Ashikhmin ,  Jung-Tao Liu

    发明人： Alexei Ashikhmin ,  Jung-Tao Liu

    IPC分类号： H04B1/7097 ,  H04J13/00 ,  H04J13/10

    CPC分类号： H04J13/00 ,  H04B2201/70706 ,  H04J13/10

    摘要： A method and apparatus are provided for generating a code book for use in a CDMA system. The code book comprises of a plurality of vectors that are used to encode user data. An amplitude and polarity for each vector in the code book are selected to provide a reduced peak-to-average power ratio. The amplitude values can be selected to provide a reduced peak-to-average power ratio while maintaining a desired average energy per chip. The desired energy per chip can be based on the energy per chip of a CDMA system having a lower order spreading factor. Performance can be further improved by employing a first code book under a first signal-to-noise ratio condition and a second code book under a second signal-to-noise ratio condition.

    摘要翻译： 提供了一种生成用于CDMA系统的码本的方法和装置。 码本由用于编码用户数据的多个向量组成。 选择代码簿中每个向量的幅度和极性以提供降低的峰均功率比。 可以选择振幅值以提供降低的峰均功率比，同时保持每芯片所需的平均能量。 每个芯片的期望能量可以基于具有较低阶扩频因子的CDMA系统的每芯片的能量。 通过在第一信噪比条件下采用第一码本和第二信噪比条件下的第二码本可以进一步提高性能。

    Apparatus and method for memory resource allocation based on virtual minimum spreading factor
    30.
    发明授权
    Apparatus and method for memory resource allocation based on virtual minimum spreading factor 有权
    基于虚拟最小扩展因子的存储器资源分配的装置和方法

    公开(公告)号：US09031115B2

    公开(公告)日：2015-05-12

    申请号：US14108302

    申请日：2013-12-16

    申请人： QUALCOMM Incorporated

    发明人： Yeon Kyoon Jeong

    IPC分类号： H04B1/00 ,  H04B1/69 ,  H04L5/00 ,  H04W52/16 ,  H04B1/707 ,  H04J13/00

    CPC分类号： H04B1/69 ,  H04B1/707 ,  H04J13/00 ,  H04L5/0048 ,  H04W52/16

    摘要： Methods for improving memory resource allocation at a base station of a wireless communications system, based on a virtual minimum spreading factor, may include computing a maximum traffic-to-pilot (T2P) power ratio for a UE, and sending a grant message to the UE specifying the maximum T2P power ratio. The base station may determine a largest minimum spreading factor (SF) for the UE based on the computed maximum T2P power ratio. The base station may allocate a memory buffer for storing minimum SF signal samples, receive one or more spread spectrum signals from the UE, and partially despread the received signals using the largest minimum SF, thereby preparing partially despread signal samples in the memory buffer. The base station may receive, from the UE, information about the actual SF used by the UE, and despread the partially despread signal samples stored in the memory buffer using the actual SF.

    摘要翻译： 基于虚拟最小扩展因子来改善无线通信系统的基站处的存储器资源分配的方法可以包括：计算用于UE的最大业务到导频（T2P）功率比，以及向 UE指定最大T2P功率比。 基站可以基于所计算的最大T2P功率比来确定UE的最大最小扩频因子（SF）。 基站可以分配用于存储最小SF信号样本的存储器缓冲器，从UE接收一个或多个扩频信号，并且使用最大最小SF部分地解扩所接收的信号，从而在存储器缓冲器中准备部分解扩信号样本。 基站可以从UE接收关于UE使用的实际SF的信息，并且使用实际的SF对存储在存储器缓冲器中的部分解扩信号样本进行解扩。