Patent ID: 6633536
Filing Date: 2003-10-14
Classification: H04B,H04W

Abstract:
A method for transmitting messages and user information in a digital telecommunications system, the method comprising:sending the user information via a transmission channel in transmission frames assigned to the user information, wherein each transmission frame has one of two states, the states being a good state and a bad state; for each different message, defining a corresponding unique bit pattern; unique bit for each individual message, placing the corresponding bit pattern into a transmission frame; transmitting each message by marking as the message at least one transmission frame which is assigned to the user information; and restricting the number of consecutive frames marked as messages to a sufficiently low number so as not to substantially impair the quality of the user information, wherein the marking substantially consists of inserting a bit pattern corresponding to the message into the at least one transmission frame and setting the state of the transmission frame to bad.