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1. 发明授权

US07133398B2 System and method for asynchronous communications employing direct and indirect access protocols 有权
标题翻译：采用直接和间接访问协议的异步通信系统和方法
公开(公告)号：US07133398B2
公开(公告)日：2006-11-07
申请号：US10108116
申请日：2002-03-27
申请人： Vernon Anthony Allen , Stephen Raphael Korfhage , Monique Bourgeois Brown , Edgar Herbert Callaway, Jr.
发明人： Vernon Anthony Allen , Stephen Raphael Korfhage , Monique Bourgeois Brown , Edgar Herbert Callaway, Jr.
IPC分类号： H04J3/06 , H04J3/08 , H04L7/00
CPC分类号： H04W56/00 , H04W76/10 , H04W88/06 , Y02D70/22
摘要： A communication access protocol improves the accessibility of devices operating on an asynchronous network (100), while supporting reduced power consumption. The network (100) includes a mediation device (130) for facilitating communications among network devices. Generally, each network device periodically transmits beacon signals to advertise its presence, and listens for communication signals targeted at the network device (532, 534). A device initiating communication with another operates in one of at least two operating modes in order to establish communications (536, 537, 538). In one mode, the initiating device communicates with the mediation device in order to derive timing information for the other device (537). In another mode, the initiating device listens to receive beacon signals directly from the target device in order to synchronize communications with the device (538). The selection of one of the two operating modes depends on a control parameter established for the initiating device, which in one embodiment is dependent on the urgency of communication, a maximum number of retries for using the mediation device, or the like.
摘要翻译：通信接入协议提高了在异步网络（100）上运行的设备的可访问性，同时支持降低功耗。网络（100）包括用于促进网络设备之间的通信的中介设备（130）。通常，每个网络设备周期性地发送信标信号以通告其存在，并且侦听针对网络设备（532,534）的通信信号。启动与另一个的通信的设备以至少两种操作模式中的一种操作，以建立通信（536,537,538）。在一种模式中，发起设备与中介设备通信，以便导出另一设备的定时信息（537）。在另一种模式中，发起设备监听从目标设备直接接收信标信号，以便同步与设备的通信（538）。两种操作模式之一的选择取决于为启动设备建立的控制参数，在一个实施例中，该控制参数取决于通信的紧急性，使用中介设备的最大重试次数等。

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