Patent ID: 8798070

Claim:
A transmitting apparatus for generating a data block to be transmitted to a receiving apparatus in a wireless communication system, the transmitting apparatus comprising: a processor configured to generate a first lower layer data block which includes a data packet received from an upper layer and generate a second lower layer data block which includes a control packet, wherein each of the first lower layer data block and the second lower layer data block includes an indicator indicating whether the corresponding lower layer data block includes the data packet or the control packet, wherein the second lower layer data block further includes type indication information indicating whether the control packet includes header compression feedback information, wherein the processor is configured to add the indicator to the data packet to generate the first lower layer data block, and the processor is configured to add the indicator and the type indication information to the control packet to generate the second lower layer data block, and wherein the processor is configured to generate the first lower layer data block to include a sequence number and generate the second lower layer data block not to include a sequence number.