Patent ID: 6937625

Claim:
A method for converting an STM- 1 signal into a sub-STM- 1 signal and vice versa in a synchronous radio transmission system, the method comprising: receiving the STM- 1 signal or the sub-STM- 1 signal; and regenerating the received signal by a radio network element, without performing any multiplexing function, wherein said regenerating the received signal comprises the steps of: in Transmission, reducing by one third the received STM- 1 signal, said received STM- 1 signal comprising three TUG- 3 s with only the first TUG- 3 being considered valid and being transmitted in the radio link while the second and the third TUG- 3 s being considered in an unequipped condition and therefore being not transmitted so as to maintain in this way the STM- 1 structure; and in Reception, reconstructing the signal with the complete regeneration of the payload, the correct AU- 4 structure, of the Section Overhead without incurring any parity check violation both at Multiplex Section level and at path level.