An apparatus operable in a base station transceiver of a mobile communication system, the apparatus comprising a transceiver module operable to communicate with a mobile transceiver, the mobile transceiver using a data service provided by a data server; an interface operable to communicate with the data server providing the data service to the mobile transceiver; and a control module operable to: control the transceiver module and the interface, relay data packets of the data service between the mobile transceiver and the data server, determine a control data packet for the data service between the data server and the mobile transceiver, the control data packet being intended to maintain a connection established between the data server and the mobile transceiver, and provide a reply data packet for the control data packet to the data server without relaying the control data packet to the mobile transceiver, or generate and provide the control data packet to the data server without relaying the control data packet to the mobile transceiver; wherein the control module is operable to receive configuration information from the mobile transceiver using the transceiver module, the configuration information indicating that a control data packet for the data service being intended to maintain a connection established between the data server and the mobile transceiver is to be determined and replied to at the base station transceiver without relaying the control data packet to the mobile transceiver, and/or the configuration information indicating that a control data packet for the data service being intended to maintain a connection established between the data server and the mobile transceiver is to be generated at the base station transceiver; wherein the configuration information indicates that a protocol context for a communication of control data packets and corresponding reply data packet for the data service is terminated at the base station transceiver, while a protocol context for payload data packets for the data service is terminated at the mobile transceiver. control the transceiver module and the interface, relay data packets of the data service between the mobile transceiver and the data server, determine a control data packet for the data service between the data server and the mobile transceiver, the control data packet being intended to maintain a connection established between the data server and the mobile transceiver, and provide a reply data packet for the control data packet to the data server without relaying the control data packet to the mobile transceiver, or generate and provide the control data packet to the data server without relaying the control data packet to the mobile transceiver; provide a reply data packet for the control data packet to the data server without relaying the control data packet to the mobile transceiver, or generate and provide the control data packet to the data server without relaying the control data packet to the mobile transceiver; wherein the control module is operable to receive configuration information from the mobile transceiver using the transceiver module, the configuration information indicating that a control data packet for the data service being intended to maintain a connection established between the data server and the mobile transceiver is to be determined and replied to at the base station transceiver without relaying the control data packet to the mobile transceiver, and/or the configuration information indicating that a control data packet for the data service being intended to maintain a connection established between the data server and the mobile transceiver is to be generated at the base station transceiver; wherein the configuration information indicates that a protocol context for a communication of control data packets and corresponding reply data packet for the data service is terminated at the base station transceiver, while a protocol context for payload data packets for the data service is terminated at the mobile transceiver.