公开(公告)号：US6075988A

公开(公告)日：2000-06-13

申请号：US992881

申请日：1997-12-18

申请人： Keith W. Anderson ,  Carl B. Toot, Jr.

发明人： Keith W. Anderson ,  Carl B. Toot, Jr.

IPC分类号： H04W24/00 ,  H04W52/02 ,  H04W68/00 ,  H04W84/04 ,  H04B15/00

CPC分类号： H04W68/00 ,  H04W24/00 ,  H04W52/0245 ,  H04W84/042

摘要： Disclosed herein is the method of operating a cellular mobile station to identify a suitable cellular control channel for entering a camping state with a highest priority cellular service provider, based on data stored in the cellular mobile station, that is preferred to a current cellular control channel the mobile station is camping on. The method comprising the steps of: (a) measuring received signal strength of a plurality of available cellular control channels; (b) attempting to lock onto the available cellular control channels having highest signal strength; (c) determining if a locked onto cellular control channel is a highest priority cellular control channel and, if so, then camping on that cellular control channel, and otherwise returning to camping on the current control channel; and (d) periodically interrupting any of steps (a)-(c) to receive control data from the current cellular control channel and then returning to the interrupted step.

摘要翻译： 本文公开的方法是基于存储在蜂窝移动站中的数据来操作蜂窝移动站以识别用于与最高优先级的蜂窝服务提供商进入驻留状态的合适的蜂窝控制信道，其优于当前的蜂窝控制信道 移动台正在露营。 该方法包括以下步骤：（a）测量多个可用蜂窝控制信道的接收信号强度; （b）尝试锁定具有最高信号强度的可用蜂窝控制信道; （c）确定锁定到蜂窝控制信道是否是最高优先级的蜂窝控制信道，并且如果是，则驻留在该蜂窝控制信道上，否则返回到当前控制信道上的驻留; 和（d）周期性地中断步骤（a） - （c）中的任何一个以从当前蜂窝控制信道接收控制数据，然后返回到中断的步骤。

公开(公告)号：US06829253B1

公开(公告)日：2004-12-07

申请号：US09723634

申请日：2000-11-28

申请人： Havish Koorapaty ,  Robert A. Zak ,  Carl B. Toot

发明人： Havish Koorapaty ,  Robert A. Zak ,  Carl B. Toot

IPC分类号： H04L708

CPC分类号： H04W56/0085 ,  H04B7/2684 ,  H04L7/042 ,  H04L7/08

摘要： Methods and systems for a transceiver to acquire synchronization to a channel in a TDMA communications system by identifying a known synchronization word in a burst received at the transceiver over the channel are provided. Pursuant to these methods and systems a first uncertainty window and a second uncertainty window are defined within a burst that is received over the channel. The transceiver may search in these uncertainty windows for the known synchronization word, where the first uncertainty window is smaller than the second uncertainty window. The first uncertainty window is first searched for the known synchronization word. It may then be determined if the known synchronization word has been located within the first uncertainty window. If it has not been, the second uncertainty window is then searched for the known synchronization word.

摘要翻译： 提供了一种用于通过识别通过信道在收发器处接收的突发中的已知同步字来获取TDMA通信系统中的信道的同步的方法和系统。 根据这些方法和系统，在通过信道接收的脉冲串内定义第一不确定性窗口和第二不确定性窗口。 收发器可以在这些不确定性窗口中搜索已知的同步字，其中第一不确定性窗口小于第二不确定性窗口。 第一个不确定窗口首先搜索已知的同步字。 然后可以确定已知的同步字是否已经位于第一不确定性窗口内。 如果没有，则搜索第二不确定性窗口以获得已知的同步字。

公开(公告)号：US5991600A

公开(公告)日：1999-11-23

申请号：US890609

申请日：1997-07-09

申请人： Keith W. Anderson ,  Carl B. Toot, Jr.

发明人： Keith W. Anderson ,  Carl B. Toot, Jr.

IPC分类号： H04W68/00 ,  H04B7/00

CPC分类号： H04W68/00

摘要： In connection with paging displacement operation, a mobile station delays entry into sleep mode in order to read a specified number of subsequent alternate (i.e., every other) additional paging channel slots to receive a paging message. During the paging channel slots located between those designated for reading paging displacement related paging messages, the mobile station makes more efficient use of limited battery supplied energy resources by making any requisite signal strength measurements.

摘要翻译： 结合寻呼位移操作，移动台延迟进入睡眠模式，以便读取指定数量的后续替代（即彼此）附加寻呼信道时隙以接收寻呼消息。 在位于指定用于读取寻呼位移相关寻呼消息的寻呼信道之间，移动台通过进行必要的信号强度测量来更有效地利用有限的电池供电能量。