Introducing simple RLC functionality to Node B

摘要

Techniques for processing downlink data transmitted in a mobile communication system between a control node of a radio access network and a mobile terminal are disclosed. A method of processing downlink data transmitted in the mobile communication system between the control node and the mobile terminal includes determining, in a radio access node of the radio access network, at least one Radio Link Control (RLC) Protocol Data Unit (PDU) from a plurality of RLC PDUs transmitted by the control node. The determined at least one RLC PDU contains a payload. The method further includes creating, in the radio access node, at least one replacement RLC PDU to be further used instead of the determined at least one RLC PDU. The at least one replacement RLC PDU contains a payload which size is smaller than the size of the payload of the determined at least one RLC PDU.