Abstract In a mobile communication system wherein connection is provided between a vehicle and an ordinary telephone network through one of the radio base stations which are installed within a district in which the vehicle passes the radio base station being connected to an exchange station associated with the telephone network, a billing system in mobile communication, wherein an out-band signal is sent from the vehicle to an exchange equipment in the exchange station whereupon a second out-band signal is sent from the exchange equipment to the vehicle so that, only while the second out-band signal is being received, measurement of time and billing are carried out in the vehicle, and wherein a billing classification is discriminated on the basis of a dial signal sent from the vehicle and the result of the discrimination is sent from the exchange equipment to the vehicle in the form of a voice-band multifrequency signal, also serving as a response signal, so that the condition for the billing is set in the vehicle.
In a telephone system for effecting communication between a mobile station and a fixed exchange station through a radio link, a billing system comprising pulse generator means in said mobile station for generating timing pulses providing a time measurement, billing index means in said mobile station responsive to said timing pulses for effecting said time measurement, out-band signal generating means in said exchange station responsive to receipt of a connection signal from said mobile station for sending an out-band signal to said mobile station, and meterpulse generator means in said mobile station for connecting said pulse generator means to said billing index means only when receiving said out-band signal.
Claim 2
Dependent Claim
109 words
In a telephone system for effecting communication between a mobile station and a fixed exchange station through a radio link, a billing system comprising pulse generator means in said mobile station for generating timing pulses providing a time measurement, billing index means in said mobile station responsive to said timing pulses for effecting said time measurement, out-band signal generating means in said exchange station responsive to receipt of a connection signal from said mobile station for sending an out-band signal to said mobile station, and meterpulse generator means in said mobile station for connecting said pulse generator means to said billing index means only when receiving said out-band signal.
Claim 3
Dependent Claim
32 words
The system defined in claim 1 wherein said mobilE station includes trunk circuit means for sending said connection signal to said exchange equipment upon detection of answer supervision by the called subscriber.
Claim 4
Dependent Claim
60 words
The system defined in claim 1 wherein said exchange station further includes multifrequency in-band signaling means for sending to said mobile station a multifrequency in-band signal representing zonal information concerning the called subscriber for purposes of charge determination, said billing index means being responsive to said multifrequency in-band signal and said timing pulses for determining the charge for the call.