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    • 2. 发明申请
    • Information management and processing in a wireless network
    • 无线网络中的信息管理和处理
    • US20050107097A1
    • 2005-05-19
    • US10972720
    • 2004-10-25
    • Paramvir BahlJoshua Broch
    • Paramvir BahlJoshua Broch
    • G01S19/03H04W4/02H04W4/04H04W8/10H04W8/14H04W84/12H04W84/22H04Q7/20
    • H04W4/02H04W4/04H04W8/10H04W8/14H04W84/12H04W84/22Y10S707/99953
    • Methods, systems and data structure for storing and managing information in a wireless network are described wherein fixed resources in the system are stored in a database in a hierarchical directory structure according to the location of each fixed resource. Each level of the directory structure represents a geographical area in which a fixed resource is located. A mobile user submits a query for the location of the nearest fixed resource having certain properties. The system determines the location of the mobile user and then searches the database for the requested fixed resource that is nearest to the mobile user. When the fixed resource is identified, data regarding its location is transmitted to the mobile user. In addition, specific directions as to how to get to the location of the fixed resource from the location of the mobile user may be provided.
    • 描述了用于在无线网络中存储和管理信息的方法,系统和数据结构,其中系统中的固定资源根据每个固定资源的位置以分层目录结构存储在数据库中。 目录结构的每个级别表示固定资源所在的地理区域。 移动用户提交对具有某些属性的最近的固定资源的位置的查询。 系统确定移动用户的位置,然后在数据库中搜索最接近移动用户的所请求的固定资源。 当确定固定资源时,将其位置的数据传送给移动用户。 此外,可以提供关于如何从移动用户的位置到达固定资源的位置的具体方向。
    • 9. 发明授权
    • Media access control (MAC) protocol for cognitive wireless networks
    • 用于认知无线网络的媒体访问控制(MAC)协议
    • US08879573B2
    • 2014-11-04
    • US11847034
    • 2007-08-29
    • Paramvir BahlRanveer ChandraThomas MoscibrodaGopala Sri Hari NarlankaYunnan WuYuan Yuan
    • Paramvir BahlRanveer ChandraThomas MoscibrodaGopala Sri Hari NarlankaYunnan WuYuan Yuan
    • H04L12/413H04W16/14H04L12/26
    • H04L12/2602H04L43/00H04L43/0882H04L43/16H04W16/14
    • A new media access control (MAC) protocol for cognitive wireless networks is described. The new MAC protocol allows each of multiple nodes, such as cell phones and computers with wireless, to determine utilization of a communication spectrum, such as the television broadcast band. The nodes collaborate to achieve a combined view of spectrum utilization in their local vicinity, in which scheduled users and empty time segments are mapped across a wide range of frequencies. Nodes negotiate with each other to reserve idle segments of the spectrum for packet exchange on negotiated frequencies. Control packet structure allows nodes to become prescient of the local spectrum utilization during handshaking. A cognitive device operating under the new MAC has a first radio that both scans the spectrum and monitors a control channel; and a second reconfigurable radio with adjustable parameters, including frequency and bandwidth, for packet transmission.
    • 描述了用于认知无线网络的新的媒体接入控制(MAC)协议。 新的MAC协议允许诸如蜂窝电话和具有无线的计算机的多个节点中的每一个确定诸如电视广播频带之类的通信频谱的利用。 节点协作实现其本地附近的频谱利用的组合视图,其中调度的用户和空时间段在广泛的频率范围内被映射。 节点相互协商以在协商的频率上保留用于分组交换的频谱的空闲段。 控制分组结构允许节点在握手期间变得预先考虑本地频谱利用。 在新MAC下操作的认知设备具有扫描频谱并监视控制信道的第一无线电; 以及用于分组传输的具有可调参数(包括频率和带宽)的第二可重新配置的无线电。