Patent ID: 6185435
Filing Date: 2001-02-06
Classification: H04W

Abstract:
A radio communication apparatus which can cope with a plurality of different communication systems, comprising:a plurality of radio communication means for performing communications through the plurality of different communication systems, said plurality of radio communication means at least comprising a personal handy phone system (PHS) and at least one other radio communication means; andselecting means for selecting one of said plurality of radio communication means,wherein said selecting means selects one of said plurality of radio communication means on the basis of communication channel qualities in said plurality of radio communication means, said selecting means determining the communication channel qualities through a priority-sequenced evaluation of a plurality of different signal parameters,said selecting means comprising a comparing means for comparing a first of said plurality of different signal parameters for each of said plurality of radio communication means to a first reference level,wherein when the first of said plurality of different signal parameters for at least two of said plurality of radio communication means is greater than the first reference level, said comparing means further compares a second of said plurality of different signal parameters for said at least two of said plurality of radio communication means to a second reference level.