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    • 1. 发明申请
    • COEXISTENCE OF A WIRELESS WIDE AREA NETWORK DEVICE IN TIME DIVISION DUPLEX (TDD) MODE WITH A WIRELESS ACCESS POINT (AP)
    • 无线接入点(AP)的时分双工(TDD)模式下无线宽域网络设备的共存
    • US20140269633A1
    • 2014-09-18
    • US14059484
    • 2013-10-22
    • Qualcomm Incorporated
    • Firouz BehnamfarAlireza RaissiniaSandip Homchaudhuri
    • H04L5/00
    • H04L5/0073H04L5/1469H04W16/14H04W84/12
    • In one embodiment, a wireless access point (AP) receives messages from a wireless wide area network (WWAN) device, wherein these messages identify parameters of future WWAN frames. Each message identifies a starting time, an operating band, an upload/download sub-frame configuration, and a special sub-frame pattern of a WWAN frame. The AP uses the parameters defined by each received message to determine whether to transmit a beacon frame at a scheduled target beacon transmission time (TBTT), or delay the transmission of the beacon frame to a delayed TBTT. The AP will not delay the scheduled TBTT if the parameters defined by the received message indicate there are no co-existence problems. However, the AP will delay a transmission from the scheduled TBTT if this scheduled TBTT coincides with a downlink sub-frame of the WWAN frame, and the WWAN frame has an operating band subject to interference from the intended transmission.
    • 在一个实施例中,无线接入点(AP)从无线广域网(WWAN)设备接收消息,其中这些消息标识未来WWAN帧的参数。 每个消息标识WWAN帧的开始时间,操作频带,上载/下载子帧配置和特殊子帧模式。 AP使用由每个接收到的消息定义的参数来确定是否在调度的目标信标发送时间(TBTT)下发送信标帧,或延迟信标帧到延迟TBTT的传输。 如果接收到的消息定义的参数表示没有共存问题,则AP不会延迟预定的TBTT。 然而,如果该调度TBTT与WWAN帧的下行链路子帧一致,则AP将延迟来自预定TBTT的传输,并且WWAN帧具有受到来自预期传输的干扰的操作频带。