Method and apparatus for omniscient root node selection in an ad hoc network
    1.
    发明申请
    Method and apparatus for omniscient root node selection in an ad hoc network 有权
    在自组织网络中全方位根节点选择的方法和装置

    公开(公告)号:US20070201382A1

    公开(公告)日:2007-08-30

    申请号:US11363778

    申请日:2006-02-28

    IPC分类号: H04L12/28 H04Q7/00 H04L12/56

    CPC分类号: H04W84/20 H04W28/18

    摘要: Techniques are provided for selecting a root node in an ad hoc network comprising a plurality of nodes including a first node. According to one implementation of these techniques, a first node can receive a message from at least one of the other nodes. Each message includes a number of primary factors associated with a particular node regarding capabilities of the particular node. The primary factors associated with each node can then be evaluated, and an attempt can be made to select the root node based on the primary factors associated with each node. If the first node is unable to select the root node based on the primary factors associated with each node, then the root node can be selected based on secondary factors associated with each node.

    摘要翻译: 提供技术用于在包括包括第一节点的多个节点的自组织网络中选择根节点。 根据这些技术的一个实施方式,第一节点可以从其他节点中的至少一个接收消息。 每个消息包括与特定节点相关联的关于特定节点的能力的多个主要因素。 然后可以评估与每个节点相关联的主要因素,并且可以基于与每个节点相关联的主要因素来尝试选择根节点。 如果第一节点不能根据与每个节点相关联的主要因素来选择根节点,则可以基于与每个节点相关联的次要因素来选择根节点。

    Method and system for multicast scheduling in a WLAN
    2.
    发明申请
    Method and system for multicast scheduling in a WLAN 审中-公开
    WLAN中组播调度的方法和系统

    公开(公告)号:US20050135317A1

    公开(公告)日:2005-06-23

    申请号:US10743298

    申请日:2003-12-22

    摘要: A method and system for scheduling multicast transmissions in a WLAN involves transmissions between a Quality of Service (QoS) Access Point (QAP) (105) and a plurality of stations (110). The method includes transmitting a first group poll (410) from a QAP (105) to each station (110) in a multicast group comprising a plurality of stations (110) (step 705). An active station (110) and inactive stations (110) among said plurality of stations (110) are then identified (step 510). Next, a directed Contention Free (CF) poll (425) is transmitted from the QAP (105) to the active station (110) (step 715). An inbound QoS data frame (415) is then transmitted from the active station (110) to the QAP (105) (step 720). An outbound QoS data frame (420) corresponding to the inbound QoS data frame (415) is then multicast from the QAP (105) to the inactive stations (110) (step 725).

    摘要翻译: 一种用于在WLAN中调度多播传输的方法和系统涉及服务质量(QoS)接入点(QAP)(105)和多个站(110)之间的传输。 该方法包括在包括多个站(110)的多播组中从QAP(105)向每个站(110)发送第一组轮询(410)(步骤705)。 然后识别所述多​​个站(110)中的活动站(110)和非工作站(110)(步骤510)。 接下来,从QAP(105)向活动站(110)发送定向无竞争(CF)轮询(425)(步骤715)。 入站QoS数据帧(415)然后从活动站(110)发送到QAP(105)(步骤720)。 然后,对应于入站QoS数据帧(415)的出站QoS数据帧(420)从QAP(105)多播到非活动站(110)(步骤725)。

    Methods for performing client to client communication in a wlan
    3.
    发明申请
    Methods for performing client to client communication in a wlan 有权
    在wlan中执行客户端客户端通信的方法

    公开(公告)号:US20060218229A1

    公开(公告)日:2006-09-28

    申请号:US11088584

    申请日:2005-03-24

    IPC分类号: G06F15/16

    摘要: Methods for performing client to client communication in a wireless local area network are disclosed. At an ‘n’ tier client in the wireless local area network, a signaling message from an ‘n−1’ tier client is received wherein the signaling message comprises a first period, a second period, and a third period. Communicating with the ‘n−1’ tier client during the first period and communicating with the ‘n+1’ tier client during the third period. At an access point in the wireless local area network, an association table identifying clients in the wireless local area network is created and a first period for client to client communication based upon the association table and traffic in the wireless local area network is determined where the access point does not communicate with the clients during the first period.

    摘要翻译: 公开了在无线局域网中执行客户端到客户端通信的方法。 在无线局域网中的'n'层客户端处,接收来自'n-1'层客户端的信令消息,其中信令消息包括第一周期,第二周期和第三周期。 在第一期间与'n-1'层客户沟通,并在第三阶段与'n + 1'层客户沟通。 在无线局域网的接入点处,创建识别无线局域网中的客户端的关联表,并且确定基于无线局域网中的关联表和业务的客户端到客户端通信的第一周期,其中 接入点在第一阶段不与客户端通信。

    Communication unit energy conservation apparatus and method
    4.
    发明申请
    Communication unit energy conservation apparatus and method 有权
    通信单元节能设备及方法

    公开(公告)号:US20050130713A1

    公开(公告)日:2005-06-16

    申请号:US10737356

    申请日:2003-12-16

    摘要: A communication unit (10) can have at least a first receiver (11) and a second receiver (12). The latter typically consumes more power than the former during ordinary operation. Pursuant to one embodiment a communication unit can use the lower-power receiver to detect energy on a monitored channel while the second receiver is retained in a reduced power mode of operation. Upon detecting an absence of channel activity the second receiver can be restored to normal operability to effect such activities as are then presently required.

    摘要翻译: 通信单元(10)可以具有至少第一接收机(11)和第二接收机(12)。 后者通常在正常操作中消耗比前者更多的功率。 根据一个实施例,通信单元可以使用较低功率的接收机来检测所监视的信道上的能量,而第二接收机被保持在降低功率的操作模式中。 在检测到不存在信道活动时,可以将第二接收机恢复到正常的可操作性,以实现当前所需的活动。

    Method and apparatus for packet scheduling in a wireless network
    5.
    发明申请
    Method and apparatus for packet scheduling in a wireless network 有权
    无线网络中分组调度的方法和装置

    公开(公告)号:US20070133454A1

    公开(公告)日:2007-06-14

    申请号:US11301855

    申请日:2005-12-13

    IPC分类号: H04Q7/00

    CPC分类号: H04W72/1231 H04W72/1236

    摘要: Method and apparatus for packet scheduling in a wireless network is described. First values for a data transmission rate are measured for each of a plurality of mobile stations over time. Second values for a function of the data transmission rate are computed using at least one of the first values for each of the mobile stations. A rate of change of the data transmission rate is computed for each of the plurality of mobile stations using the second values associated therewith. A stability of the data transmission rate is computed for each of the plurality of mobile stations using the second values associated therewith. A channel quality factor is determined for each of the mobile stations using a current value of the second values, the rate of change of the function, and the stability of the function associated therewith.

    摘要翻译: 描述了无线网络中的分组调度的方法和装置。 随着时间的推移,针对多个移动站中的每一个测量数据传输速率的第一值。 使用每个移动站的第一值中的至少一个来计算数据传输速率的功能的第二值。 使用与其相关联的第二值,为多个移动站中的每一个计算数据传输速率的变化率。 使用与其相关联的第二值来计算多个移动站中的每一个的数据传输速率的稳定性。 使用第二值的当前值,功能的变化率和与其相关联的功能的稳定性,为每个移动站确定信道质量因子。

    Method and system for data transmission in a wireless network
    6.
    发明申请
    Method and system for data transmission in a wireless network 有权
    无线网络中数据传输的方法和系统

    公开(公告)号:US20070036089A1

    公开(公告)日:2007-02-15

    申请号:US11199783

    申请日:2005-08-09

    IPC分类号: H04L12/28 H04Q7/00

    摘要: A method and system for data transmission by computational devices in a wireless network (100) are disclosed. A computational device (102) organizes the wireless network in a hierarchical topology having at least one root node and updates a list of interferers and a list of descendents. Then, the computational device allocates a Contention Free Period (CFP) slot to each computational device in the wireless network based on at least one of the list of interferers and the list of descendents and transmits data during the allocated CFP slot.

    摘要翻译: 公开了一种用于在无线网络(100)中的计算设备进行数据传输的方法和系统。 计算设备(102)以具有至少一个根节点的分层拓扑组织无线网络,并更新干扰源列表和后代列表。 然后,计算设备基于干扰源列表和后代列表中的至少一个,在无线网络中的每个计算设备上分配无竞争周期(CFP)时隙,并在所分配的CFP时隙期间发送数据。

    Methods for delivery in a wireless communications network
    7.
    发明申请
    Methods for delivery in a wireless communications network 有权
    在无线通信网络中传送的方法

    公开(公告)号:US20060140186A1

    公开(公告)日:2006-06-29

    申请号:US11025613

    申请日:2004-12-29

    IPC分类号: H04H1/00

    摘要: Methods for delivery of multicast packets in a wireless communication system are disclosed. The methods comprise transmitting a contention free period initiation signal from an access point to the station, transmitting broadcast packets from the access point to the station, transmitting multicast packets from the access point to the station and holding the multicast packets in storage after the transmission, transmitting a contention free period end signal from the access point to the station, determining if a negative acknowledgement message has been received, retransmitting the multicast packets in response to receiving a negative acknowledgment message, and eliminating the multicast packets at a next beacon interval.

    摘要翻译: 公开了在无线通信系统中传送多播分组的方法。 所述方法包括:将无争用时段发起信号从接入点发送到所述站,从所述接入点向所述站发送广播分组,从所述接入点向所述站发送组播分组,并在所述传输之后保存所述多播分组, 从所述接入点向所述站发送无争用时段结束信号,确定是否已经接收到否定确认消息,响应于接收到否定确认消息重传所述多播分组,以及在下一个信标间隔消除所述多播分组。

    Method for performing neighbor discovery in a multi-tier WLAN
    9.
    发明申请
    Method for performing neighbor discovery in a multi-tier WLAN 有权
    在多层WLAN中执行邻居发现的方法

    公开(公告)号:US20060089964A1

    公开(公告)日:2006-04-27

    申请号:US10970940

    申请日:2004-10-22

    IPC分类号: G06F15/16

    摘要: A method for performing neighbor discovery in a multi-tier wireless local area network where a client creates a neighbor list identifying a neighbor wherein the neighbor is identified as an access point or a client. Then, the client determines a time to perform a scan of neighbors based upon 1) a type of neighbor discovery to be performed and 2) when a first beacon is transmitted by an access point in a first tier of the multi-tier wireless local area network. Subsequently, the client performs a scan of neighbors at the determined time on a channel associated with the type of neighbor discovery. Finally, the client receives a beacon sent from a neighbor of the client to update the neighbor list with information transmitted in the beacon.

    摘要翻译: 一种用于在多层无线局域网中执行邻居发现的方法,其中客户端创建标识邻居的邻居列表,其中所述邻居被识别为接入点或客户端。 然后,客户端基于1)要执行的邻居发现的类型确定执行对邻居的扫描的时间,以及2)当第一信标由多层无线局域的第一层中的接入点发送时 网络。 随后,客户端在与邻居发现的类型相关联的信道上在确定的时间对邻居进行扫描。 最后,客户端接收从客户端的邻居发送的信标,用信标中发送的信息更新邻居列表。

    Adaptive scheduling window management for a quality of service enabled local area network
    10.
    发明授权
    Adaptive scheduling window management for a quality of service enabled local area network 有权
    自适应调度窗口管理为服务质量的局域网提供支持

    公开(公告)号:US06961311B2

    公开(公告)日:2005-11-01

    申请号:US10436517

    申请日:2003-05-13

    IPC分类号: H04L12/28 H04L12/56 H04J1/16

    CPC分类号: H04W72/1236 H04W84/12

    摘要: A method (600) performed by a packet scheduler of an access point (215) of adaptively resizing a scheduling window in a Quality of Service enabled Local Area Network (200) is disclosed. The packet scheduler schedules data packets for a given duration, termed a scheduling window. The packet scheduler according to an embodiment of the invention adaptively changes the duration of the scheduling window based on the QoS requirements of data packets to be transmitted to and from the access point (215). In particular, the duration of the scheduling window is changed based on the delay requirement of the data packet having the most constraint QoS requirement.

    摘要翻译: 公开了一种由服务质量启用局域网(200)自适应调整调度窗口大小的接入点(215)的分组调度器执行的方法(600)。 分组调度器在给定的持续时间内调度数据分组,称为调度窗口。 根据本发明的实施例的分组调度器基于要从接入点(215)发送的数据分组的QoS要求,自适应地改变调度窗口的持续时间。 具体而言,调度窗口的持续时间根据具有最大约束QoS要求的数据分组的延迟要求而改变。