Mobile station originated sms using digital traffic channel

Abstract

A method is disclosed for operating a user terminal, such as a cellular radiotelephone, of a type that is bidirectionally coupled to a network through an RF interface. The method includes a first step of storing at least one message in a memory accessible by the mobile station. A second step transmits a Teleservice origination (e.g., a SMS origination) request from the mobile station to the network using a reverse digital control channel. The request specifies that a reverse digital traffic channel be assigned to the mobile station. A next step, executed in response to being assigned to a reverse digital traffic channel, transmits the at least one stored message to a SMS center that is coupled to the network, the at least one stored message being transmitted over the assigned reverse digital traffic channel. In a preferred embodiment of this invention the SMS origination request is transmitted using a random access channel, the step of transmitting the at least one stored message includes a step of bypassing a voice coder and a data modem within the mobile station, and the step of transmitting the at least one stored message is accomplished in an ARQ mode of operation. Also disclosed is a method to deliver Teleservice messages in a wireless communications system that are not constrained by any message length limitations imposed by the air interface or network layers supporting the wireless service.