公开(公告)号：CA2098578A1

公开(公告)日：1992-07-16

申请号：CA2098578

申请日：1991-10-16

Applicant: MOTOROLA INC

Inventor： CHANG HUNGKUN J ,  DOSS WILLIAM K ,  NOLAN MICHAEL P ,  BUCHHOLZ DALE R ,  FREEBURG THOMAS A ,  MCKOWN THOMAS A ,  WHITE RICHARD E

IPC: H04B1/18 ,  H04B7/00 ,  H04B7/08 ,  H04B7/26 ,  H04W16/24 ,  H04W72/08

Abstract: 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.