Patent ID: 6226520
Filing Date: 2001-05-01
Classification: H04W

Abstract:
A call processing method for exchanging channel information between a radio terminal and a base station by using a traffic channel, the method comprising the steps of:the radio terminal internally generating a list of radio terminal traffic channels having interference below a predetermined level at the radio terminal;selecting a first traffic channel from the generated list having least interference;transmitting a call request to the base station on the first selected traffic channel;the base station generating a list of base station traffic channels having interference below a predetermined level at the base station;determining whether the transmitted call request has been received by the base station;checking whether the first selected traffic channel is included in the list generated by the base station;transmitting a call request response signal to the radio terminal when said first selected traffic channel is included in the list generated by the base station;checking whether the call request response message is received by the radio terminal on the first selected traffic channel; andproceeding with the call connection when the call request response message is received by the radio terminal.