Patent ID: 6504840
Filing Date: 2003-01-07
Classification: H04J,H04Q

Abstract:
A method for transferring data on a bitstream in a circuit switched time division multiplexed network, wherein said bitstream is divided into frames, each frame is divided into time slots, and said time slots are divided into control slots and data slots, and wherein an isochronous channel, comprising one or more data slots within each cycle of said bitstream, has been established between a first node and a second node of said network, said method comprising the step of:providing said bitstream with data distinguishing each data slot, within said channel, that contains non-valid data as a result of said first node not being able to transmit valid data into said each data slot, which step in turn comprises the steps of: providing said each data slot with data designating the respective data slot as containing non-valid data; encoding said designating data of each respective data slot as a specific bit pattern; and transmitting said specific bit pattern on said bitstream, said specific bit pattern, when received, being recognizable as identifying a data slot which contains non-valid data.