会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • METHOD AND SYSTEM FOR MANAGING TRANSMISSIONS IN A WIRELESS COMMUNICATION NETWORK
    • 在无线通信网络中管理传输的方法和系统
    • WO2009023458A2
    • 2009-02-19
    • PCT/US2008/072091
    • 2008-08-04
    • MOTOROLA, INC.CHEN, YeVUKOVIC, Ivan, N.
    • CHEN, YeVUKOVIC, Ivan, N.
    • H04L12/24H04L12/28
    • H04L41/082H04W74/0841Y04S40/162
    • The present invention provides a method for managing transmissions in a wireless communication network (100). The method at a first node (102) of a plurality of nodes of the wireless communication network includes transmitting (304) a data frame to a second node (104) using a first transmit power level. The method further includes determining (306) whether an acknowledgement for the transmitted data frame is received from the second node. Further, the method includes determining (308) a cause of unsuccessful transmission when the acknowledgement is not received from the second node. Moreover, the method includes re-transmitting (310) the data frame to the second node using a second transmit power level when the cause of unsuccessful transmission is determined as a collision. Furthermore, the method includes setting (312) a transmit power level of the first node to a third transmit power level.
    • 本发明提供一种用于管理无线通信网络(100)中的传输的方法。 在无线通信网络的多个节点的第一节点(102)处的方法包括使用第一发射功率电平向第二节点(104)发射(304)数据帧。 该方法还包括确定(306)是否从第二节点接收到对发送的数据帧的确认。 此外,该方法包括当没有从第二节点接收到确认时确定(308)不成功传输的原因。 此外,该方法包括当不成功传输的原因被确定为冲突时,使用第二传输功率级别向第二节点重传(310)数据帧。 此外,该方法包括将第一节点的发射功率电平设置(312)为第三发射功率电平。
    • 6. 发明申请
    • CONTROL FRAME FEATURE ON DEMAND IN A WIRELESS COMMUNICATION SYSTEM
    • 根据无线通信系统的需求控制帧特征
    • WO2008076516A3
    • 2008-08-28
    • PCT/US2007082420
    • 2007-10-24
    • MOTOROLA INCCHEN YEVUKOVIC IVAN N
    • CHEN YEVUKOVIC IVAN N
    • H04L12/413
    • H04W74/0816H04L43/16
    • In a wireless network, a device monitors (310) at least one parameter that indicates collision status in the network; compares (320) the at least one parameter to a predefined control frame threshold that is based on a criterion other than packet-size; and activates (330) a control frame feature in the device for sending a control frame prior to data transmission, when the at least one parameter exceeds the control frame threshold. In an 802.11 network, the control frames are RTS (request-to-send) and CTS (clear-to-send) frames. The parameters being monitored can include: a number of acknowledgement and RTS frames detected from a hidden terminal, when the device is in a backoff state; a number of retransmission attempts by the device; and a collision rate determined and transmitted by another device in the wireless network to which the device intends to send data.
    • 在无线网络中,设备监视(310)指示网络中的冲突状态的至少一个参数; 将所述至少一个参数与基于不同于分组大小的准则的预定控制帧阈值进行比较(320) 并且当所述至少一个参数超过所述控制帧阈值时,在所述设备中激活(330)用于发送数据传输之前的控制帧的控制帧特征。 在802.11网络中,控制帧是RTS(请求发送)和CTS(清除发送)帧。 被监视的参数可以包括:当设备处于退避状态时,从隐藏终端检测到的许多确认和RTS帧; 设备的重传次数; 以及由设备打算发送数据的无线网络中的另一设备确定并发送的冲突率。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR FACILITATING DATA TRANSMISSIONS
    • 促进数据传输的方法和装置
    • WO2005022936A1
    • 2005-03-10
    • PCT/US2004/025727
    • 2004-08-09
    • MOTOROLA, INC.EMEOTT, Stephen, P.CHEN, YeSMAVATKUL, Nattavut
    • EMEOTT, Stephen, P.CHEN, YeSMAVATKUL, Nattavut
    • H04Q7/20
    • H04W52/0229H04W74/08H04W84/12Y02D70/142Y02D70/22Y02D70/23
    • An access point (11) for a wireless local area network (10) transmits a beacon message during a service interval period (21). This beacon message identifies, in a preferred embodiment, those subscriber units to whom the access point will shortly be transmitting data. Subscriber units that are not identified in the beacon message and that do not have data themselves to transmit to the access point can implement a power conservation mode of operation until the next beacon message. Subscriber units that have data, such as voice information, to transmit can utilize the beacon message contents to at least estimate a likely time by when the access point will have concluded making its transmissions to the subscriber units. That estimated time can then be used to facilitate scheduling a time at which a given subscriber unit will contend for an opportunity to transmit its data to the access point. In a preferred embodiment, this scheduled transmission time can potentially occur either during a contention window that follows the service interval period or during a dynamic contention window that follows the transmissions of the access point and concludes with the conclusion of the service interval period. Subscriber units can then use intervening periods of time to effect their power conservation schemes of choice.
    • 无线局域网(10)的接入点(11)在服务间隔期间(21)中发送信标消息。 该信标消息在优选实施例中标识接入点将不久正在向其发送数据的那些用户单元。 在信标消息中未被识别并且没有数据本身发送到接入点的用户单元可以实现功率节省模式,直到下一个信标消息。 具有数据(例如语音信息)要发送的订户单元可以利用信标消息内容来至少估计可能的时间,当接入点将已经结束向用户单元发送信号时。 然后可以使用该估计时间来方便调度给定用户单元将竞争机会将其数据发送到接入点的时间。 在优选实施例中,该调度的传输时间可能潜在地在遵循服务间隔周期的竞争窗口期间或者在接入点的传输之后的动态争用窗口期间出现,并以服务间隔周期的结论得出结论。 用户单位然后可以使用中间时间来实现其选择的节能方案。