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    • 6. 发明申请
    • METHOD AND APPARATUS FOR GROUP SYNCHRONIZED CHANNEL ACCESS WITH TIM SEGMENTATION
    • 用于分组的组同步信道接入的方法和装置
    • US20130229959A1
    • 2013-09-05
    • US13523418
    • 2012-06-14
    • Chittabrata GhoshKlaus Franz DopplerTaejoon KimSayantan ChoudhuryEsa Tuomaala
    • Chittabrata GhoshKlaus Franz DopplerTaejoon KimSayantan ChoudhuryEsa Tuomaala
    • H04W52/02
    • H04W74/08
    • A method includes receiving indications of a wake-up interval assigned to a station and a corresponding group to which the station belongs, wherein all stations assigned to the group are assigned the wake-up interval. The method includes waking the station during the wake-up interval and determining, using at least the indication of the group, whether information received by the station during the wake-up interval corresponds to the group. Another method includes assigning stations to one of multiple groups based on wake-up intervals, in which stations assigned to a group all have a same wake-up interval and each group has a different wake-up interval, sending indications of a corresponding wake-up interval and a corresponding group to each of the stations, and during a interval corresponding to the wake-up interval for a selected group, transmitting the indication of the selected group and associated information meant for the group.
    • 一种方法包括接收分配给站点的呼叫间隔的指示和该站所属的对应组,其中分配给组的所有站被分配唤醒间隔。 该方法包括在唤醒间隔期间唤醒站,以及至少使用该组的指示,确定在唤醒间隔期间该站所接收的信息是否对应于该组。 另一种方法包括基于唤醒间隔将站分配给多个组中的一个,其中分配给组的站都具有相同的唤醒间隔,并且每个组具有不同的唤醒间隔,发送相应的唤醒间隔的指示, 并且在对应于所选择的组的唤醒间隔的间隔期间,发送所选择的组的指示和针对该组的相关联的信息。
    • 8. 发明申请
    • METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR RESOLVING HIDDEN NODE IN SYNCHRONIZED DCF BASED CHANNEL ACCESS
    • 用于在基于DCF的同步通道访问中解决隐藏节点的方法,设备和计算机程序产品
    • US20140003414A1
    • 2014-01-02
    • US13534384
    • 2012-06-27
    • Sayantan CHOUDHURYChittabrata GhoshTaejoon KimKlaus Franz DopplerEsa Tuomaala
    • Sayantan CHOUDHURYChittabrata GhoshTaejoon KimKlaus Franz DopplerEsa Tuomaala
    • H04B7/212
    • H04W74/006H04W74/02H04W74/04H04W74/0816
    • Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving by a wireless terminal device, a first message from an access point, the first message comprising information indicating a plurality of restricted access windows, each allocated for a different group of terminal devices associated to a wireless network managed by the access point; receiving by the terminal device, a second message from the access point, within a restricted access window of the plurality of restricted access windows, the restricted access window allocated to a group of terminal devices of which the terminal device is a member, the second message comprising information indicating that a communications channel is available; and determining by the terminal device, based on the second message, that the communications channel is not occupied by hidden ones of the terminal devices associated to the network.
    • 本发明的实施例提供了由大量站组成的无线网络的信令机制。 示例性方法实施例包括:由无线终端设备接收来自接入点的第一消息,所述第一消息包括指示多个受限访问窗口的信息,每个被分配给与由无线网络管理的无线网络相关联的不同终端设备组 接入点; 由所述终端设备接收来自所述接入点的第二消息,所述第二消息在所述多个受限接入窗口的受限访问窗口内,所述受限访问窗口被分配给所述终端设备所属的一组终端设备,所述第二消息 包括指示通信信道可用的信息; 以及由所述终端设备基于所述第二消息确定所述通信信道不被与所述网络相关联的所述终端设备中的隐藏的信道占用。
    • 9. 发明授权
    • Method and apparatus for signaling sequence root
    • 用于信令序列根的方法和装置
    • US08964561B2
    • 2015-02-24
    • US13464213
    • 2012-05-04
    • Taejoon KimSayantan ChoudhuryKlaus F. DopplerChittabrata GhoshZhong-Yi JinEsa Tuomaala
    • Taejoon KimSayantan ChoudhuryKlaus F. DopplerChittabrata GhoshZhong-Yi JinEsa Tuomaala
    • H04W4/20
    • H04W28/06H04W16/14H04W72/0466H04W74/00H04W74/06
    • A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.
    • 第一网络的第一接入节点利用分配给不同用户设备的代码序列,至少区分并行或顺序接收的确认与那些用户设备。 第一接入节点从接收到的信令确定代码序列的根序列正在由第二网络的第二接入节点使用,然后改变分配给不同用户设备的码序列的根序列。 在某些示例中,接入节点是WLAN接入点AP,并且响应于组探测/轮询接收确认。 在各种实施例中,第一AP监视其邻居的组探测/轮询以学习在这些邻居网络中使用的根序列/基本服务集,或者AP本身的站在邻居报告中监视和发送信息。 后一选项可以由站本身或AP发起。
    • 10. 发明授权
    • Method, apparatus, and computer program product for resolving hidden node in synchronized DCF based channel access
    • 用于在基于DCF的同步信道访问中解决隐藏节点的方法,装置和计算机程序产品
    • US09019874B2
    • 2015-04-28
    • US13534384
    • 2012-06-27
    • Sayantan ChoudhuryChittabrata GhoshTaejoon KimKlaus Franz DopplerEsa Tuomaala
    • Sayantan ChoudhuryChittabrata GhoshTaejoon KimKlaus Franz DopplerEsa Tuomaala
    • H04B7/00H04W74/02H04W74/04H04W74/08
    • H04W74/006H04W74/02H04W74/04H04W74/0816
    • Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving by a wireless terminal device, a first message from an access point, the first message comprising information indicating a plurality of restricted access windows, each allocated for a different group of terminal devices associated to a wireless network managed by the access point; receiving by the terminal device, a second message from the access point, within a restricted access window of the plurality of restricted access windows, the restricted access window allocated to a group of terminal devices of which the terminal device is a member, the second message comprising information indicating that a communications channel is available; and determining by the terminal device, based on the second message, that the communications channel is not occupied by hidden ones of the terminal devices associated to the network.
    • 本发明的实施例提供了由大量站组成的无线网络的信令机制。 示例性方法实施例包括:由无线终端设备接收来自接入点的第一消息,所述第一消息包括指示多个受限访问窗口的信息,每个被分配给与由无线网络管理的无线网络相关联的不同终端设备组 接入点; 由所述终端设备接收来自所述接入点的第二消息,所述第二消息在所述多个受限接入窗口的受限访问窗口内,所述受限访问窗口被分配给所述终端设备所属的一组终端设备,所述第二消息 包括指示通信信道可用的信息; 以及由所述终端设备基于所述第二消息确定所述通信信道不被与所述网络相关联的所述终端设备中的隐藏的信道占用。