公开(公告)号：US06671525B2

公开(公告)日：2003-12-30

申请号：US10022964

申请日：2001-12-13

申请人： Vernon Anthony Allen ,  Stephen Korfhage ,  Robert J. O'Dea ,  Ralph D'Souza

发明人： Vernon Anthony Allen ,  Stephen Korfhage ,  Robert J. O'Dea ,  Ralph D'Souza

IPC分类号： H04B138

CPC分类号： H04W52/0225 ,  H04W48/08 ,  H04W48/16 ,  Y02D70/142 ,  Y02D70/22

摘要： A beacon assisted asynchronous method of wireless communication according to the present invention enables initiating and target devices (12, 14) to remain in sleep mode most of the time and to periodically wake up to asynchronously, and directly, communicate with one another. Specifically, each of the initiating and target devices (12, 14) transmits a beacon while operating in a default transmit/receive mode (40, 40a, 42, 42a) and subsequently listens for a response. Alternatively, the initiating device (12) may enter a data packet message mode to receive a beacon from the target device (14) and to subsequently transmit a data packet message to the target device (14) after receiving the first beacon. The initiating device (12) minimizes the length of time in which it must wait to receive the target device beacon by timing a corresponding target beacon receive period based on stored data such as information based on previous communication with the target device (14).

摘要翻译： 根据本发明的信标辅助的无线通信异步方法使得能够启动和目标设备（12,14）在大多数时间内保持睡眠模式，并且周期性地唤醒到异步并且直接地彼此通信。 具体地，每个发起和目标设备（12,14）在默认发送/接收模式（40,40,42,42a）中操作时发送信标，并随后监听响应。 或者，发起设备（12）可以输入数据分组消息模式以从目标设​​备（14）接收信标，并且在接收到第一信标之后随后将数据分组消息发送到目标设备（14）。 发起设备（12）通过基于诸如基于与目标设备（14）的先前通信的信息的存储的数据对定位相应的目标信标接收周期来最小化其必须等待接收目标设备信标的时间长度。