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    Apparatus and method for use in paging mode in wireless communications systems
    11.
    发明授权
    Apparatus and method for use in paging mode in wireless communications systems 有权
    在无线通信系统中用于寻呼模式的装置和方法

    公开(公告)号：US07292868B2

    公开(公告)日：2007-11-06

    申请号：US10829901

    申请日：2004-04-22

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04Q7/20 ,  H04B7/212 ,  H04J3/00

    CPC classification number: H04W68/02 ,  H04W52/0216 ,  H04W52/0219 ,  Y02D70/10

    Abstract: In a unique paging time slot format, each of the allocated paging time slots occurs periodically and is split into several prescribed paging time slots including at least one first type paging time slot having a relatively short duration and at least one second type paging time slot having a longer duration. The at least one first type paging time slots is of relatively short duration and transports an indication whether a particular associated wireless terminal was paged. The second type paging time slot is of longer duration than the first type time slot and transports the entire paging message. The paging time slots are periodically transmitted and intended for at least one particular wireless terminal.

    Abstract translation: 在唯一的寻呼时隙格式中，所分配的寻呼时隙中的每一个周期性地发生并被分成若干指定的寻呼时隙，包括具有相对较短持续时间的至少一个第一类型的寻呼时隙和至少一个第二类型的寻呼时隙， 持续时间较长 所述至少一个第一类型的寻呼时隙具有相对较短的持续时间并且传送指示特定相关联的无线终端是否被寻呼。 第二类寻呼时隙的持续时间比第一类型时隙长，传输整个寻呼消息。 周期性地传送寻呼时隙并且针对至少一个特定的无线终端。

    Signaling method in an OFDM multiple access system
    14.
    发明授权
    Signaling method in an OFDM multiple access system 有权
    OFDM多址系统中的信令方法

    公开(公告)号：US07990843B2

    公开(公告)日：2011-08-02

    申请号：US12759626

    申请日：2010-04-13

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04J11/00 ,  H04B7/216

    CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

    Abstract: A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time instants in the symbol duration. A plurality of tones are allocated to a particular communication device, and a discrete signal is constructed in the time domain by mapping symbols from the constellation to the time instants. A continuous signal is generated by applying an interpolation function to the discrete signal such that the continuous signal only includes sinusoids having frequencies which are equal to the allocated tones.

    Abstract translation: 提供了一种用于降低OFDM通信信号中的峰均比的方法。 该方法包括定义具有多个符号的星座，定义OFDM通信信号的符号持续时间，以及定义符号持续时间中的多个时刻。 将多个音调分配给特定的通信设备，并且通过将符号从星座映射到时刻在时域中构建离散信号。 通过对离散信号应用内插函数来产生连续信号，使得连续信号仅包括具有等于所分配音调的频率的正弦曲线。

    Methods and apparatus related to composite beacon and wideband synchronization signaling
    15.
    发明授权
    Methods and apparatus related to composite beacon and wideband synchronization signaling 有权
    与复合信标和宽带同步信令相关的方法和装置

    公开(公告)号：US07801227B2

    公开(公告)日：2010-09-21

    申请号：US11486881

    申请日：2006-07-14

    Applicant: Vladimir Parizhisky ,  Rajiv Laroia ,  Alexander Leonidov ,  Tom Richardson ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Vladimir Parizhisky ,  Rajiv Laroia ,  Alexander Leonidov ,  Tom Richardson ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04K1/00

    CPC classification number: H04L27/2613 ,  H04L5/023 ,  H04L27/2614 ,  H04L27/2655

    Abstract: A composite signal includes a high power beacon signal and low power corresponding wideband synchronization signal and is communicated over a time interval exceeding a single OFDM transmission time interval. A base station transmits one or more different such composite broadcast signals in a recurring timing structure. Each different potential beacon signal, e.g., a single tone signal, is paired with a unique wideband synchronization signal. A wideband synchronization signal includes at least some predetermined null tones and at least some predetermined non-null tones. For a given wideband synchronization signal, the predetermined null tones carry predetermined modulation symbol values, A wireless terminal receives a composite signal, identifies a beacon, determines a corresponding known wideband synchronization signal, compares received to known wideband synchronization signals, and determines at least one of a timing adjustment, frequency adjustment and channel estimation.

    Abstract translation: 复合信号包括高功率信标信号和低功率对应的宽带同步信号，并且在超过单个OFDM传输时间间隔的时间间隔上传送。 基站以循环定时结构发送一个或多个不同的这种复合广播信号。 每个不同的潜在信标信号，例如单个音调信号，与唯一的宽带同步信号配对。 宽带同步信号至少包括一些预定的无效音调和至少一些预定的非空音调。 对于给定的宽带同步信号，预定的空音携带预定的调制符号值，A无线终端接收复合信号，识别信标，确定对应的已知宽带同步信号，将已接收的已知宽带同步信号进行比较，并确定至少一个 定时调整，频率调整和信道估计。

    Security methods for use in a wireless communications system
    16.
    发明授权
    Security methods for use in a wireless communications system 失效
    用于无线通信系统的安全方法

    公开(公告)号：US07729686B2

    公开(公告)日：2010-06-01

    申请号：US11471062

    申请日：2006-06-19

    Applicant: M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    Inventor： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    IPC: H04M1/66 ,  H04M1/68 ,  H04M3/16

    CPC classification number: H04L9/3236 ,  H04L63/0807 ,  H04L63/12 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/06 ,  H04W12/10 ,  H04W12/12 ,  H04W88/08

    Abstract: Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.

    Abstract translation: 为无线系统描述信号，例如消息，安全技术。 接入节点经由无线链路接收第一信号。 信号包括由发送设备例如无线终端产生的第一认证器。 接入节点根据信号的属性确定接入节点和发送设备都已知的至少一些信息，但是未作为消息内容的一部分发送。 确定的信息被无线终端用于生成第一认证器。 接入节点将包括第一认证器的第一信号的至少一部分和确定的信息发送到另一个实体。 实体将第一鉴别器与其确定的信息产生的第二认证器和与发送设备共享的安全密钥进行比较，以确定第一和第二认证符是否匹配。

    WIRELESS TIMING AND POWER CONTROL
    17.
    发明申请
    WIRELESS TIMING AND POWER CONTROL 有权
    无线时序和功率控制

    公开(公告)号：US20100130220A1

    公开(公告)日：2010-05-27

    申请号：US12694805

    申请日：2010-01-27

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04W72/00 ,  H04M1/00

    CPC classification number: H04W16/12 ,  H04W16/14 ,  H04W24/00 ,  H04W36/06 ,  H04W52/0235 ,  H04W52/028 ,  H04W52/08 ,  H04W52/281 ,  H04W52/283 ,  H04W52/286 ,  H04W52/287 ,  H04W52/288 ,  H04W52/60 ,  H04W68/02 ,  H04W68/025 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/048 ,  Y02D70/23

    Abstract: The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. The various states require different amounts of communications resources, e.g., bandwidth. Four supported states of operation are an on-state, a hold-state, a sleep-state, and an access-state. Each mobile node in the on-state is allocated communication resources to perform transmission power control signaling, transmission timing control signaling and to transmit data as part of a data uplink communications operation. Each mobile node in the hold-state is allocated communication resources to perform transmission timing control signaling and is provided a dedicated uplink for requesting a state transition and a shared resource for transmitting acknowledgements. In the sleep state a mobile node is allocated minimal resources and does not conduct power control signaling or timing control signaling. Data may be received in the on and hold states.

    Abstract translation: 描述了使用移动通信设备操作的多种状态来允许单个基站支持相对大量的移动节点。 各种状态需要不同数量的通信资源，例如带宽。 四个支持的操作状态是开状态，保持状态，睡眠状态和访问状态。 处于导通状态的每个移动节点被分配通信资源以执行传输功率控制信令，传输定时控制信令，并且作为数据上行链路通信操作的一部分来发送数据。 保持状态下的每个移动节点被分配通信资源以执行传输定时控制信令，并且提供用于请求状态转换的专用上行链路和用于发送确认的共享资源。 在睡眠状态下，移动节点被分配最少资源，并且不进行功率控制信令或定时控制信令。 可以在接通和保持状态下接收数据。

    METHOD OF CREATING AND UTILIZING DIVERSITY IN A MULTIPLE CARRIER COMMUNCIATION SYSTEM
    19.
    发明申请
    METHOD OF CREATING AND UTILIZING DIVERSITY IN A MULTIPLE CARRIER COMMUNCIATION SYSTEM 有权
    在多媒体传播系统中创造和利用多样性的方法

    公开(公告)号：US20080182580A1

    公开(公告)日：2008-07-31

    申请号：US12060249

    申请日：2008-03-31

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04Q7/20

    CPC classification number: H04W36/20 ,  H04W16/12 ,  H04W16/14 ,  H04W24/00 ,  H04W36/06 ,  H04W52/0235 ,  H04W52/08 ,  H04W52/281 ,  H04W52/283 ,  H04W52/286 ,  H04W52/287 ,  H04W52/288 ,  H04W52/60 ,  H04W56/00 ,  H04W68/02 ,  H04W68/025 ,  H04W72/00 ,  H04W72/048 ,  Y02D70/00

    Abstract: In many cellular systems, reusing spectrum bandwidth, creates problems in boundary regions between the cells and sectors where the signal strength received from adjacent base stations or adjacent sector transmissions of a single base station may be nearly equivalent. The invention creates a new type of diversity, referred to as multiple carrier diversity by utilizing multiple carriers, assigning different power levels to each carrier frequency at each base station, and/or offsetting sector antennas. The cell and/or sector coverage areas can be set so as to minimize or eliminate overlap between cell and/or sector boundary regions of different carrier frequencies. Mobile nodes traveling throughout the system can exploit multiple carrier diversity by detecting carriers and selecting to use a non-boundary carrier based on other system criteria in order to improve performance. Boundary carriers may, but need not be, identified and excluded from consideration for use by a wireless terminal.

    Abstract translation: 在许多蜂窝系统中，重用频谱带宽在小区和扇区之间的边界区域中产生问题，其中从相邻基站接收的信号强度或单个基站的相邻扇区传输可能几乎相等。 本发明通过利用多个载波，在每个基站上为每个载波频率分配不同的功率电平和/或补偿扇区天线来创建一种称为多载波分集的新型分集。 可以设置小区和/或扇区覆盖区域以便最小化或消除不同载波频率的小区和/或扇区边界区域之间的重叠。 在整个系统中传播的移动节点可以通过检测载波并且基于其他系统标准选择使用非边界载波来利用多载波分集，以便提高性能。 边界运营商可以但不需要被识别并排除在考虑无线终端的使用之外。

    Methods and apparatus for operating mobile nodes in multiple states
    20.
    发明授权
    Methods and apparatus for operating mobile nodes in multiple states 有权
    用于操作多个状态的移动节点的方法和装置

    公开(公告)号：US07398111B2

    公开(公告)日：2008-07-08

    申请号：US11174793

    申请日：2005-07-05

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

    IPC: H04B1/38 ,  H04B1/00

    CPC classification number: H04W16/12 ,  H04W16/14 ,  H04W24/00 ,  H04W36/06 ,  H04W52/0235 ,  H04W52/028 ,  H04W52/08 ,  H04W52/281 ,  H04W52/283 ,  H04W52/286 ,  H04W52/287 ,  H04W52/288 ,  H04W52/60 ,  H04W68/02 ,  H04W68/025 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/048 ,  Y02D70/23

    Abstract: The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. Various states require different amounts of communications resources, e.g., bandwidth and/or control signaling. Different numbers of control channels are monitored during different states of operation. A mobile node monitors during a first state of operation, e.g., the on-state, a first control channel to detect control signals in segments of the first control channel intended for the mobile node, detects a period of reduced control signaling to said mobile node on said first control channel, and then, in response to detecting a period of reduced control signal signaling to the mobile node, transitions from said first state to a second state of operation. During the second state of operation fewer control channels are monitored and the first control channel is not monitored.

    Abstract translation: 描述了使用移动通信设备操作的多种状态来允许单个基站支持相对大量的移动节点。 各种状态需要不同数量的通信资源，例如带宽和/或控制信令。 在不同的操作状态下监视不同数量的控制通道。 移动节点在第一操作状态（例如，接通状态）中监视第一控制信道，以检测针对移动节点的第一控制信道的段中的控制信号，检测到对所述移动节点的减少控制信令的周期 在所述第一控制信道上，然后响应于检测到对移动节点的减少的控制信号信令的周期，从所述第一状态转换到第二操作状态。 在第二操作状态期间，监控较少的控制信道，并且不监视第一控制信道。

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