公开(公告)号：US06560298B1

公开(公告)日：2003-05-06

申请号：US09318319

申请日：1999-05-25

申请人： Timothy P. Froehling ,  Louis J. Vannatta ,  Scott L. Chamberlain

发明人： Timothy P. Froehling ,  Louis J. Vannatta ,  Scott L. Chamberlain

IPC分类号： H04L2716

CPC分类号： H03J7/04 ,  H04L27/2275 ,  H04L27/2332 ,  H04L2027/0065 ,  H04L2027/0073 ,  H04L2027/0095

摘要： A method (1400) of enabling automatic frequency control (AFC) concurrent with time alignment of information in a communication device includes a first step (1402) of providing a data stream to an AFC. A second step (1404) includes applying multiple frequency offsets to the data stream. The offsets are separated from each other by about ±2&pgr;/2m radians with m being the number of bits per symbol in the modulation system. A third step (1406) includes correlating each frequency offset signal with a predetermined symbol sequence until correlation is found. A fourth step (1408) includes coupling the correct data stream of the branch with the found correlation to an AFC logic circuit indicating AFC lock. A fifth step (1410) includes simultaneously supplying the correct data stream to the communication device along with the fourth step (1408) such that time alignment can take place concurrently with AFC in the communication device.

摘要翻译： 一种与通信设备中的信息的时间对准同时实现自动频率控制（AFC）的方法（1400）包括向AFC提供数据流的第一步骤（1402）。 第二步骤（1404）包括对数据流应用多个频率偏移。 偏移量彼此分开约±2pi / 2m的弧度，其中m是调制系统中每个符号的位数。 第三步骤（1406）包括将每个频率偏移信号与预定的符号序列相关，直到发现相关。 第四步骤（1408）包括将所发现的相关性的分支的正确数据流耦合到指示AFC锁的AFC逻辑电路。 第五步骤（1410）包括与第四步骤（1408）同时向通信设备提供正确的数据流，使得时间对准可以与通信设备中的AFC同时进行。

公开(公告)号：US08218519B1

公开(公告)日：2012-07-10

申请号：US12009931

申请日：2008-01-23

申请人： Scott L. Chamberlain ,  William B. Curry ,  Terry J. Hammer ,  Brian J. Keller

发明人： Scott L. Chamberlain ,  William B. Curry ,  Terry J. Hammer ,  Brian J. Keller

IPC分类号： H04J1/00 ,  H04M1/00

CPC分类号： H04W74/0841 ,  H04W8/26 ,  H04W56/00 ,  H04W84/18

摘要： The present example provides a method of providing a Transmit ID within an ad hoc wireless communications network, and use of the transmit ID to provide methods to select a node's transmit pattern (Transmit Patterns), to inform a node receiver that a packet is incoming that is to be decoded (Receive Packet Acquisition), to tell a node receiver how to efficiently retrieve pulses from multiple packets simultaneously (Efficient Receive Processing), and how to disburse network transmissions throughout network time (Network Traffic Smoothing). The present example may also provide for Network Management of the Transmit IDs for use in network bandwidth reduction and maintenance of the Transmit IDs within the Network.

摘要翻译： 本示例提供了在ad hoc无线通信网络内提供发送ID的方法，以及使用发送ID来提供选择节点的发送模式（发送模式）的方法，向节点接收者通知分组正在进入 要被解码（接收数据包获取），以告诉节点接收器如何有效地从多个分组同时检索脉冲（高效接收处理），以及如何在网络时间（网络流量平滑）中支付网络传输。 本示例还可以提供用于网络带宽减少和维护网络内的发送ID的发送ID的网络管理。