利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.054 秒)

    METHOD AND APPARATUS FOR BANDWIDTH ALLOCATION FOR COGNITIVE RADIO NETWORKS
    6.
    发明申请
    METHOD AND APPARATUS FOR BANDWIDTH ALLOCATION FOR COGNITIVE RADIO NETWORKS 有权
    用于认知无线电网络的带宽分配的方法和装置

    公开(公告)号：US20120163309A1

    公开(公告)日：2012-06-28

    申请号：US13270438

    申请日：2011-10-11

    申请人： Liangping Ma ,  Athmane Touag ,  Martino M. Freda ,  Jean-Louis Gauvreau ,  Chunxuan Ye ,  Alpaslan Demir ,  Amith V. Chincholi

    发明人： Liangping Ma ,  Athmane Touag ,  Martino M. Freda ,  Jean-Louis Gauvreau ,  Chunxuan Ye ,  Alpaslan Demir ,  Amith V. Chincholi

    IPC分类号： H04W72/04

    CPC分类号： H04L27/0006 ,  H04B7/2606 ,  H04L5/0037 ,  H04L5/0058 ,  H04W16/10 ,  H04W16/14 ,  H04W24/00 ,  H04W24/10 ,  H04W28/04 ,  H04W72/02 ,  H04W72/0453

    摘要： Described herein are methods, metrics and apparatus for bandwidth allocation for cognitive radio. Information that needs to be passed between different components of a dynamic spectrum management (DSM) system for dynamic bandwidth allocation along with the corresponding interfaces is identified. Methods and associated metrics for measuring network performance, evaluating channel sensing results and handling various bandwidth allocation scenarios are presented. Also provided is an admission control mechanism for quality of service support. Alternate channel monitoring may be performed in the background so that when a new channel is needed, an alternate channel may be immediately allocated and service disruption to the DSM system is reduced. A channel may be dynamically assigned as the primary channel in multiple channel scenarios to support tasks such as transmission of acknowledgment frames. Hybrid mode devices that may access a television white space (TVWS) database and perform spectrum sensing are also described.

    摘要翻译： 这里描述了用于认知无线电的带宽分配的方法，度量和装置。 识别需要在用于动态带宽分配的动态频谱管理（DSM）系统的不同组件之间传递的信息以及相应的接口。 介绍了测量网络性能，评估信道感知结果和处理各种带宽分配情况的方法和相关度量。 还提供了用于服务质量支持的准入控制机制。 可以在背景中执行备用信道监视，使得当需要新信道时，可以立即分配备用信道，并减少对DSM系统的业务中断。 可以在多个信道场景中将信道动态分配为主信道，以支持诸如确认帧的传输的任务。 还描述了可以访问电视空白（TVWS）数据库并执行频谱感测的混合模式设备。

    METHOD AND APPARATUS FOR WIRELESS DIRECT LINK OPERATION
    8.
    发明申请
    METHOD AND APPARATUS FOR WIRELESS DIRECT LINK OPERATION 审中-公开
    无线直连链路操作的方法和装置

    公开(公告)号：US20120120892A1

    公开(公告)日：2012-05-17

    申请号：US13297837

    申请日：2011-11-16

    申请人： Martino M. Freda ,  Saad Ahmad ,  Rocco DiGirolamo ,  Athmane Touag ,  Jean-Louis Gauvreau ,  Francois Periard

    发明人： Martino M. Freda ,  Saad Ahmad ,  Rocco DiGirolamo ,  Athmane Touag ,  Jean-Louis Gauvreau ,  Francois Periard

    IPC分类号： H04W72/04 ,  H04W74/08

    CPC分类号： H04W8/005 ,  H04W74/0808 ,  H04W76/14 ,  H04W84/18 ,  H04W88/06

    摘要： A dynamic spectrum management (DSM) system includes a plurality of stations and a central entity. A plurality of different radio access technologies are deployed in the DSM system and the central entity coordinates and manages wireless communications in the network. A direct link station receives a beacon periodically from an access point (AP). The direct link station may receive a direct link synchronization message from the AP indicating that a following target beacon transmission time (TBTT) is a synchronization TBTT (STBTT). The direct link station may silence the direct link channels during the STBTT. The direct link station may perform carrier sense multiple access (CSMA) on a primary channel of the direct link to get an access to all direct link channels. A connectivity map procedure may be performed to establish a map for connectivity, services, or capabilities of the devices in the network.

    摘要翻译： 动态频谱管理（DSM）系统包括多个站和中心实体。 多个不同的无线接入技术部署在DSM系统中，中心实体协调和管理网络中的无线通信。 直接链路站从接入点（AP）周期性地接收信标。 直接链路站可以从AP接收到直接链路同步消息，指示随后的目标信标发送时间（TBTT）是同步TBTT（STBTT）。 在STBTT期间，直接链路站可以使直接链路信道静音。 直接链路站可以在直接链路的主信道上执行载波侦听多路访问（CSMA）以获得对所有直接链路信道的访问。 可以执行连接性映射过程以建立网络中设备的连接性，服务或能力的映射。

    DYNAMIC SPECTRUM MANAGEMENT
    10.
    发明申请
    DYNAMIC SPECTRUM MANAGEMENT 有权
    动态频谱管理

    公开(公告)号：US20120294168A1

    公开(公告)日：2012-11-22

    申请号：US13286610

    申请日：2011-11-01

    申请人： Martino M. Freda ,  Alpaslan Demir ,  Athmane Touag ,  Phillip L. Leithead ,  Amith V. Chincholi ,  Ramya Gopalan ,  Sowmya Gopalan ,  Jean-Louis Gauvreau

    发明人： Martino M. Freda ,  Alpaslan Demir ,  Athmane Touag ,  Phillip L. Leithead ,  Amith V. Chincholi ,  Ramya Gopalan ,  Sowmya Gopalan ,  Jean-Louis Gauvreau

    IPC分类号： H04W24/10 ,  H04W72/04

    CPC分类号： H04W24/10 ,  H04B1/0067 ,  H04W72/00 ,  H04W72/0453

    摘要： A wireless transmit/receive unit (WTRU) and a dynamic spectrum management (DSM) engine are described. The WTRU includes a transceiver, a radio frequency (RF) spectrum sensing unit and a processing unit. The transceiver transmits over a wireless link. The RF spectrum sensing unit measures information indicative of usage of a spectrum by other devices. The processing unit detects a change in performance of the wireless link, controls the transceiver to transmit a notification to a DSM engine indicating that the change in the performance of the wireless link was detected on a condition that the processing unit detects the change in performance of the wireless link, and receives a sensing task request for the WTRU to measure the information indicative of the usage of the spectrum by other devices based on the notification transmitted to the DSM engine indicating that the change in the performance of the wireless link was detected.

    摘要翻译： 描述了无线发射/接收单元（WTRU）和动态频谱管理（DSM）引擎。 WTRU包括收发机，射频（RF）频谱感测单元和处理单元。 收发器通过无线链路传输。 RF频谱感测单元测量指示其它设备使用频谱的信息。 处理单元检测无线链路的性能变化，控制收发器向DSM引擎发送通知，指示在处理单元检测到无线链路的性能变化的情况下检测到无线链路性能的变化 无线链路，并且接收针对WTRU的感测任务请求，以基于发送到DSM引擎的指示，检测到无线链路的性能的改变来测量指示其他设备使用频谱的信息。