公开(公告)号：US06304754B1

公开(公告)日：2001-10-16

申请号：US09324999

申请日：1999-06-02

申请人： Charles Michael DeSantis ,  Susan L. Klein ,  Christine T. Read

发明人： Charles Michael DeSantis ,  Susan L. Klein ,  Christine T. Read

IPC分类号： H04Q720

CPC分类号： H04W16/18 ,  H04W36/08

摘要： A method for improving the display of the interaction between cells in wireless environment by a computerized site layout system is presented. Each cell has a cell boundary threshold signal level and a hand-off trigger threshold signal level. After the signal strengths of the cells throughout the environment are calculated, the signal strength data is examined to determine for a primary cell and each of its neighbor cells, in turn, a handoff region where the signal strength of said primary cell is at least equal to its cell boundary threshold signal level and the signal strength of the particular neighbor cells is at least equal to its hand-off trigger threshold signal level. The position of the primary and neighbor cells and the identified handoff regions are graphically displayed. Preferably, each cell is assigned a unique display indicium and the handoff regions are displayed using a combination of the indicia for the primary and respective neighbor cell.

摘要翻译： 提出了一种通过计算机化站点布局系统改善无线环境中的小区之间的交互显示的方法。 每个单元具有单元边界阈值信号电平和切换触发阈值信号电平。 在计算整个环境中的小区的信号强度之后，检查信号强度数据以确定主小区及其每个相邻小区又是其中所述主小区的信号强度至少相等的切换区域 到其小区边界阈值信号电平，并且特定相邻小区的信号强度至少等于其切换触发阈值信号电平。 图形地显示主要和相邻小区的位置和所识别的切换区域。 优选地，每个小区被分配唯一的显示标记，并且使用用于主要和相应相邻小区的标记的组合来显示切换区域。

公开(公告)号：US07110768B1

公开(公告)日：2006-09-19

申请号：US09455019

申请日：1999-12-06

申请人： Sydney D. Bridges ,  Charles Michael DeSantis ,  Jane Klein ,  Steve J. Nossen

发明人： Sydney D. Bridges ,  Charles Michael DeSantis ,  Jane Klein ,  Steve J. Nossen

IPC分类号： H04Q7/20

CPC分类号： H04W16/18

摘要： The present invention provides an apparatus and system for accurately predicting and evaluating cellular system performance before an actual system is installed at a site. In accordance with an embodiment of the invention, only two persons (or under certain conditions, as few as one) are required to operate the portable measurement and antenna placement (MAP) tools of the invention, and evaluate system performance (e.g., voice quality) at varied locations of a site without the system being in place. A user can measure out the size of cells using a bar graph display that shows the range of acceptable signal levels for the system, and an audible warning tone that signals the user when the cell edge has been exceeded. In addition, other quality determinative system parameters (e.g., bit error rate (BER), etc.) can be evaluated simultaneously with voice quality and average received signal strength.

摘要翻译： 本发明提供了一种用于在实际系统安装在现场之前准确地预测和评估蜂窝系统性能的装置和系统。 根据本发明的实施例，仅需要两个人（或在某些条件下，少至一个）来操作本发明的便携式测量和天线放置（MAP）工具，并且评估系统性能（例如，语音质量 ）在没有系统到位的场所的不同位置。 用户可以使用条形图显示来测量单元格的大小，该条形图显示系统可接受的信号电平的范围，以及当超过单元格边缘时向用户发出的可听到的警告音。 此外，可以与语音质量和平均接收信号强度同时评估其他质量确定系统参数（例如，误码率（BER）等）。

公开(公告)号：US06351463B1

公开(公告)日：2002-02-26

申请号：US09055626

申请日：1998-04-06

申请人： Charles Michael DeSantis ,  Kevin William Gould ,  Shabbir Amirali Khakoo ,  Raymond Abbott Sackett ,  Thomas Ralph Smeraldi, Jr.

发明人： Charles Michael DeSantis ,  Kevin William Gould ,  Shabbir Amirali Khakoo ,  Raymond Abbott Sackett ,  Thomas Ralph Smeraldi, Jr.

IPC分类号： H04J306

CPC分类号： H04B7/2693

摘要： The present invention provides a method and apparatus for transmitting a synchronization beacon from a wireless base station to a wireless terminal in a wireless communication network installed in a building. The wireless network comprises a private branch exchange (PBX) connected to a wireless fixed base station (WFB) having a plurality of cell antennae units (CAUs) connected thereto. In a first embodiment, the plurality of CAUs are located in a single cell of the wireless network and are configured to receive two synchronization beacons from the WFB. In a second embodiment, each CAU is located in a separate cell in the network and is configured to receive a single synchronization beacon from the WFB. The synchronization beacon(s) is/are managed by the WFB and WT to virtually eliminate loss of synchronization between the WFB and WT if the frequency-timeslot at which the beacon is transmitted is changed or if transmission of the beacon is temporarily discontinued. In addition, synchronization between the WFB and WT is also maintained when the WT is moved to another cell in the wireless network.

摘要翻译： 本发明提供一种用于在安装在建筑物中的无线通信网络中从无线基站向无线终端发送同步信标的方法和装置。 无线网络包括连接到具有与其连接的多个小区天线单元（CAU）的无线固定基站（WFB）的专用小交换机（PBX）。 在第一实施例中，多个CAU位于无线网络的单个小区中，并被配置为从WFB接收两个同步信标。 在第二实施例中，每个CAU位于网络中的单独的小区中，并被配置为从WFB接收单个同步信标。 如果发送信标的频率时隙被改变或信标的传输暂时中断，同步信标由WFB和WT管理以便实际上消除WFB和WT之间的同步丢失。 此外，当WT移动到无线网络中的另一个小区时，WFB和WT之间的同步也被维持。