Patent ID: 6018653
Filing Date: 2000-01-25
Classification: H04M,H04W

Abstract:
A method for determining in a radio communication device an availability of services related to a use of said radio communication device in a cellular network, wherein said network includes a base station, and said radio communication device includes storage means, and said base station repeatedly transmits a message, said method including steps of:including within said message a first character sequence;storing a second character sequence in said storage means;selecting by said radio communication device on the basis of said second character sequence some of the characters in said first character sequence;comparing selected characters of said first sequence with corresponding characters of said second sequence to obtain a comparison;making a determination on the basis of said comparison as to whether a particular first service is applicable; andwherein said selecting step is accomplished by a logic process responsive to individual characters of said second sequence for selecting a portion, but not all, of the characters of said first sequence to enable said selecting process to operate as a masking process wherein said second sequence serves as a mask for selecting characters in said first sequence.