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    Methods and apparatus for supporting group communications with data re-transmission support
    44.
    发明授权
    Methods and apparatus for supporting group communications with data re-transmission support 有权
    支持数据重传支持群组通信的方法和装置

    公开(公告)号：US08861418B2

    公开(公告)日：2014-10-14

    申请号：US12166603

    申请日：2008-07-02

    申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

    发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

    IPC分类号： H04H20/71 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04J3/26 ,  H04J3/17 ,  H04W8/18 ,  H04W4/08

    CPC分类号： H04W4/08 ,  H04W8/186

    摘要： Methods and apparatus related to group communications in a wireless communications system, e.g., a peer to peer wireless communications system, are described. Methods and apparatus directed to closed groups, e.g., where the number of group members are fixed at a given time and known to one or more members of the group, are described. Various embodiments are well suited to decentralized peer to peer wireless networks including a plurality of individual traffic resources, e.g., traffic slots and/or traffic segments, which may be independently scheduled in a decentralized manner. Some features and/or aspects are directed to the use of individual group member acknowledgement signaling in response to a transmitted group traffic data signal. By monitoring for anticipated individual group member acknowledgment signals and identifying members which have not signaled a positive acknowledgment, re-transmission can be directed and/or tailored to a subset of the group.

    摘要翻译： 描述了与无线通信系统中的组通信相关的方法和装置，例如对等无线通信系统。 描述了针对封闭组的方法和装置，例如，其中组成员的数量在给定时间被固定并且对该组的一个或多个成员已知的那些。 各种实施例非常适合于分散的对等无线网络，其包括多个单独的业务资源，例如业务时隙和/或业务段，其可以以分散的方式独立地调度。 一些特征和/或方面针对响应于所发送的组业务数据信号的单独组成员确认信令的使用。 通过监视预期的个人组成员确认信号和识别尚未发出肯定确认的成员，可以针对该组的子集来定向和/或定制重新发送。

    Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections
    45.
    发明授权
    Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections 有权
    用于提供基站位置信息和使用位置信息以支持定时和/或频率校正的方法和装置

    公开(公告)号：US08798638B2

    公开(公告)日：2014-08-05

    申请号：US11216973

    申请日：2005-08-31

    申请人： Frank A. Lane ,  Rajiv Laroia ,  Junyi Li

    发明人： Frank A. Lane ,  Rajiv Laroia ,  Junyi Li

    IPC分类号： H04W24/00

    CPC分类号： H04W4/02 ,  H04B7/01 ,  H04W56/0025 ,  H04W56/0035 ,  H04W56/006 ,  H04W64/00 ,  H04W88/005 ,  H04W92/10

    摘要： A wireless terminal receives base station position over an airlink, determines its relative position with respect to the base station and determines a timing adjustment correction. The wireless terminal applies the determined timing correction to control uplink signaling timing and achieve synchronization at the base station's receiver. The wireless terminal determines its relative velocity with respect to the base station and determines a Doppler shift adjustment which it adds to the uplink carrier frequency or to its baseband signal. A wireless terminal determines the position of a moving base station and determines timing and/or frequency corrections. Base station position is determined from the current time and stored information correlating the base station position with time, e.g., for a geo-synchronous satellite. Base station position information is determined from broadcast information, e.g., GPS base station position, for an aircraft base station. Wireless terminals may be mobile and include a GPS receiver for WIRELESS TERMINAL position determination.

    摘要翻译： 无线终端通过空中链路接收基站位置，确定其相对于基站的相对位置，并确定定时调整校正。 无线终端应用所确定的定时校正以控制上行链路信令定时，并在基站的接收机处实现同步。 无线终端确定其相对于基站的相对速度，并确定其添加到上行链路载波频率或其基带信号的多普勒频移调整。 无线终端确定移动基站的位置并确定定时和/或频率校正。 基站位置是从当前时间确定的，并存储与基站位置和时间相关的信息，例如用于地理同步卫星。 从飞机基站的广播信息（例如，GPS基站位置）确定基站位置信息。 无线终端可以是移动的，并且包括用于WIRELESS TERMINAL位置确定的GPS接收器。

    Mitigating interference in a communication network
    47.
    发明授权
    Mitigating interference in a communication network 有权
    减轻通信网络中的干扰

    公开(公告)号：US08731484B2

    公开(公告)日：2014-05-20

    申请号：US13532477

    申请日：2012-06-25

    申请人： Junyi Li ,  Saurabha Rangrao Tavildar ,  Rajiv Laroia ,  Thomas Joseph Richardson

    发明人： Junyi Li ,  Saurabha Rangrao Tavildar ,  Rajiv Laroia ,  Thomas Joseph Richardson

    IPC分类号： H04B1/44

    CPC分类号： H04L1/0045 ,  H04L1/20 ,  H04L1/201 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0058

    摘要： Aspects relate to mitigating interference in a communication network that does not employ a centralized scheduler. A transmission sent on a subset of resources is evaluated to determine a number of communication pairs that have selected that subset of resources on which to transmit. If there are a large number of communication pairs transmitting on that subset, the transmission is ignored by a receiving device. The number of degrees of freedom that contain energy on the subset is evaluated to determine if an expected number of degrees of freedom that should have energy is met or exceeded. If the expected threshold number is met or exceed, the transmission is decoded by the receiving device, else the transmission is not decoded.

    摘要翻译： 方面涉及减轻不采用集中式调度器的通信网络中的干扰。 评估在资源子集上发送的传输，以确定已经选择要发送的资源子集的多个通信对。 如果在该子集上有大量的通信对传输，则传输被接收设备忽略。 评估在子集上含有能量的自由度的数量，以确定是否满足或超过应具有能量的预期自由度数。 如果满足或超过预期阈值数，则传输由接收​​设备解码，否则传输不被解码。

    Efficient paging in a wireless communication system
    48.
    发明授权
    Efficient paging in a wireless communication system 有权

    公开(公告)号：US08712448B2

    公开(公告)日：2014-04-29

    申请号：US12751961

    申请日：2010-03-31

    申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

    发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

    IPC分类号： H04W68/00

    CPC分类号： H04W68/025 ,  Y02D70/00

    摘要： Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

    Coding methods of communicating identifiers in peer discovery in a peer-to-peer network
    49.
    发明授权
    Coding methods of communicating identifiers in peer discovery in a peer-to-peer network 失效
    在对等网络中的对等体发现中传递标识符的编码方法

    公开(公告)号：US08630281B2

    公开(公告)日：2014-01-14

    申请号：US11775793

    申请日：2007-07-10

    申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Leonard Grokop

    发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Leonard Grokop

    IPC分类号： H04J3/06

    CPC分类号： H04L67/1061 ,  H04J3/0638 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L12/18 ,  H04L67/1093 ,  H04W8/005 ,  H04W56/001 ,  H04W56/0015 ,  H04W84/18

    摘要： Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).

    摘要翻译： 描述了系统和方法，其便于在对等网络中的对等体发现期间基于编码信号来识别对等体。 例如，可以利用将时间 - 频率资源分割成多个段的直接信令来在对等设备发现间隔内传送标识符; 因此，选择用于传输的特定片段可以发送标识符的一部分，而可以基于在所选择的段内通信的音调来发信号通知剩余部分。 此外，可以保留资源内的符号子集（例如，未使用的）以使得能够识别和/或校正定时偏移。 此外，可以在多个对等点发现间隔上实现信令，使得可以链接每个对等设备发现间隔期间通信的部分标识符（例如，基于重叠位和/或布隆过滤器信息）。

    Wireless timing and power control
    50.
    发明授权
    Wireless timing and power control 有权
    无线定时和功率控制

    公开(公告)号：US08620332B2

    公开(公告)日：2013-12-31

    申请号：US12694805

    申请日：2010-01-27

    申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

    发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

    IPC分类号： H04W4/00

    CPC分类号： 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

    摘要： 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.

    摘要翻译： 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。