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    • 3. 发明申请
    • CARRIER SENSING MULTIPLE ACCESS WITH COLLISION AVOIDANCE SCHEME OPTIMIZED FOR A PRIORI KNOWN CARRIER USAGE FOR LOW DUTY CYCLE SYSTEMS
    • 携带者感知具有冲突避免方案的多路访问优化用于低占空比系统的先行运动载体
    • US20070116033A1
    • 2007-05-24
    • US11623603
    • 2007-01-16
    • Jukka ReunamakiJuha SalokannelAntti LappetelainenVisa Smolander
    • Jukka ReunamakiJuha SalokannelAntti LappetelainenVisa Smolander
    • H04L12/413
    • H04W16/14H04L1/16H04W24/00H04W48/08H04W74/00H04W84/10Y02D70/142Y02D70/144
    • Systems and methods for a communication system implementing a short range communication link between devices advertising available information and services, and user devices which may initiate a request for further information or services. The communication system provides a low power solution utilizing an optimized combination of a carrier sensing and frequency division multiple access to avoid collisions. The optimization involves the use of a random mean zero value offset appended to the advertising devices' transmission frames. The offset increases the likelihood that a first advertising device will recognize the transmissions of another advertiser's transmissions (i.e., determining that a channel is busy) and avoid unnecessary transmissions that will result in collisions. Upon recognition, the first advertiser may shift its transmission frame accordingly, thereby avoiding transmission collisions between advertisers. The communication system may be implemented in either a StandAlone LowRate system, or in a device with a pre-existing operational Bluetooth implementation.
    • 用于实现广告可用信息和服务的设备之间的短距离通信链路的通信系统的系统和方法,以及可以发起对更多信息或服务的请求的用户设备。 通信系统利用载波感测和频分多址接入的优化组合来提供低功率解决方案,以避免碰撞。 优化包括使用附加到广告设备的传输帧的随机均值零值偏移。 该偏移增加了第一广告设备将识别另一广告商的传输(即,确定频道正忙)的传输的可能性,并避免将导致冲突的不必要的传输。 一旦识别,第一广告商可以相应地改变其传输帧,从而避免广告商之间的传输冲突。 通信系统可以在StandAlone LowRate系统中或在具有预先存在的操作蓝牙实现的设备中实现。
    • 4. 发明申请
    • COGNITIVE CONTROL NETWORK SELECTION
    • 认知控制网络选择
    • US20120302275A1
    • 2012-11-29
    • US13521269
    • 2010-02-17
    • Jari JunellJuha SalokannelPaivi Ruuska
    • Jari JunellJuha SalokannelPaivi Ruuska
    • H04W72/08H04W48/18
    • H04W48/18H04W48/16H04W74/0808H04W88/06
    • In accordance with an example embodiment of the present invention, an apparatus (by example a node with a cognitive control radio CCR) receives first and second messages indicating at least one of a number of nodes per cognitive radio network and amount of traffic per cognitive radio network participating to a respective first and second cognitive control network CCN. The node selects one of the first and second cognitive control network based at least partly on at least one of the number of participating nodes and the amount of traffic per similar cognitive radio network for which the apparatus is capable of accessing. In a specific embodiment, the selection is according to a predefined set of rules, such as select only a channel that appears to be free of primary users; scan a predefmed set of frequency channels in a predefined order; and others. If there are no suitable pre-existing cognitive control networks CCNs available, there are also rules for establishing a new CCN. Described are apparatus, method, and a memory storing a computer program for the various embodiments.
    • 根据本发明的示例实施例,装置(例如具有认知控制无线电CCR的节点)接收指示每个认知无线电网络的多个节点中的至少一个和每个认知无线电的业务量的第一和第二消息 网络参与相应的第一和第二认知控制网络CCN。 所述节点至少部分地基于所述参与节点的数量中的至少一个和所述装置能够访问的每个相似认知无线电网络的业务量来选择所述第一和第二认知控制网络中的一个。 在具体实施例中,选择是根据预定义的一组规则,例如仅选择看起来不含主要用户的频道; 以预定义的顺序扫描预定义的频道集合; 和别的。 如果没有合适的预先存在的认知控制网络CCN可用,也有建立新CCN的规则。 描述了存储用于各种实施例的计算机程序的装置,方法和存储器。