Transmitting a communication from a wireless access point indicating available networks and their capabilities
    4.
    发明申请
    Transmitting a communication from a wireless access point indicating available networks and their capabilities 有权
    从无线接入点发送指示可用网络及其能力的通信

    公开(公告)号:US20070025371A1

    公开(公告)日:2007-02-01

    申请号:US11193245

    申请日:2005-07-29

    IPC分类号: H04L12/56

    摘要: A wireless access point may be configured to advertise, to mobile user devices, multiple wireless networks available through the wireless access point. For example, service set identifiers (SSIDs) may be specified within an information element (IE) of a communication such as, for example, an 802.11 beacon, broadcasted to mobile user devices. Such an IE may utilize the capability provided by IEEE 802.11 itself to use additional and flexible numbers of information elements within a beacon. Accordingly, networks that would otherwise remain hidden due to limitations of known wireless access points are made visible to mobile user devices. Configuring a wireless access point to advertise multiple available wireless networks, for example, by firmware upgrades, may serve as a viable and cost-effective interim solution and/or alternative to replacing a wireless access point with a wireless access point configured to implement virtual wireless access points.

    摘要翻译: 无线接入点可以被配置为向移动用户设备通告通过无线接入点可用的多个无线网络。 例如,可以在广播到移动用户设备的通信例如802.11信标的信息元素(IE)内指定服务集标识符(SSID)。 这样的IE可以利用由IEEE 802.11本身提供的能力来使用信标内的附加和灵活数量的信息元素。 因此,由于已知无线接入点的限制而否则将保持隐藏的网络对于移动用户设备是可见的。 配置无线接入点以发布多个可用的无线网络,例如通过固件升级,可以作为一种可行和具有成本效益的临时解决方案和/或替代无线接入点的替代方案,该无线接入点配置为实现虚拟无线 接入点

    Method and system for dynamically adjusting transmit and receive parameters for handling negative acknowledgments in reliable multicast
    7.
    发明申请
    Method and system for dynamically adjusting transmit and receive parameters for handling negative acknowledgments in reliable multicast 有权
    用于动态调整发送和接收参数以处理可靠组播中的否定确认的方法和系统

    公开(公告)号:US20050147045A1

    公开(公告)日:2005-07-07

    申请号:US11072023

    申请日:2005-03-04

    IPC分类号: H04L1/00 H04L1/18 H04L12/26

    摘要: A method and system for multicast network transmissions dynamically sets response time parameters for handling negative acknowledgments (NAKs). When the sender receives a NAK for a lost packet, it returns an NAK confirmation (NCF), waits for a back-off time before sending requested repair data, and then waits for a “linger time” during which the sender does not respond to other NAKs for the same lost packet. The back-off time and the linger time are dynamically set according to the position of the requested sequence number in the sender's transmit window such that the back-off time is shorter when the requested data is closer to being flushed out of the transmit window. After receiving the NCF, the receiver waits for a timeout period and resends the NAK if no repair data is received. The timeout period for data receipt is dynamically set according to a statistical average time for receiving repair data from the sender and the estimated sender's transmit window size.

    摘要翻译: 组播网络传输的方法和系统动态地设置用于处理否定确认(NAK)的响应时间参数。 当发送方收到丢失数据包的NAK时,返回NAK确认(NCF),在发送请求的修复数据之前等待退避时间,然后等待发送方不响应的“停留时间” 同一丢失数据包的其他NAK。 根据发送者发送窗口中所请求的序列号的位置动态地设置退避时间和逗留时间,使得当所请求的数据更接近被从发送窗口冲出时,退避时间较短。 接收到NCF后,如果没有接收到修复数据,则接收机等待超时时间并重新发送NAK。 根据用于从发送方接收修复数据的统计平均时间和估计的发送者的发送窗口大小,动态地设置数据收据的超时时间。