Patent ID: 6931026
Filing Date: 2005-08-16
Classification: H04W

Abstract:
1. A method for transmitting user data in a mobile communication system having at least one state transition, said at least one state transition including transitioning from an active state where user data is transmitted via a dedicated channel to a control hold state when user data is not generated for a first predefined time in the active state to transmit only control information via a dedicated control channel, said method comprising the steps of: releasing the dedicated control channel and transitioning to a suspended state when the user data to be transmitted is not generated for a second predefined time in the control hold state; determining a parameter value specifying an attribute of the generated user data and comparing the parameter value with a predefined reference value when the user data to be transmitted is generated in the suspended state; and transmitting the user data, while in the suspended state, via a common channel which contains message type information when the parameter value is lower than the predefined reference value; wherein the parameter value includes at least one of a length and a generation frequency of the user data.