Inserting a length indicator into a protocol data unit

摘要

The present invention relates to a method of converting a service data unit into a current protocol data unit having at least one fixed size, the method comprising: including a last segment of the service data unit into the current protocol data unit in a radio link control layer; and including a second indicator into a following protocol data unit in the radio link control layer when an end of the last segment of the service data unit is included within the current protocol data unit and a first indicator indicating the end of the last segment of the service data unit is not included within the current prorocol data unit, wherein the second indicator indicates that the end of the last segment of the service data unit exactly ends at the end of the current protocol data unit.