ANTENNA PATTERN SELECTION FOR OPTIMIZED COMMUNICATIONS AND AVOIDANCE OF PEOPLE,申请号CA19912098578-传众专利搜索

ANTENNA PATTERN SELECTION FOR OPTIMIZED COMMUNICATIONS AND AVOIDANCE OF PEOPLE

申请公布号：CA2098578(C)

申请号：CA19912098578

申请日期：1991.10.16

申请公布日期：1997.02.18

申请人：

MOTOROLA, INC.

发明人：CHANG, HUNGKUN J.;DOSS, WILLIAM KEVIN;NOLAN, MICHAEL P.;BUCHHOLZ, DALE R.;FREEBURG, THOMAS A.;MCKOWN, JOHN;WHITE, RICHARD E.

分类号：H04B1/18;H04B7/00;H04B7/08;H04B7/26;H04W16/24;H04W72/08;(IPC1-7):H04Q7/32;H04B7/06

主分类号：H04B1/18

摘要：An antenna selection technique is used in an RF communication system in which user modules (UM1-UM5) communicate with at least one node (N1-N2). The UM's (UM1-UM5) and nodes (N1,N2) each have multiple antennae. The combination of each UM and node antenna is evaluated at the UM. Based on at least signal quality, the UM (UM1-UM5) selects its antenna and the best node antenna for use. An alternate antenna is selected if a person is determined to be present in a predetermined area adjacent a UM (UM1-UM5) corresponding to a predetermined RF power level.