METHOD FOR TRANSMITTING AND RECEIVING CONTROL DATA IN MOBILE TELECOMMUNICATIONS SYSTEM AND TRANSMITTER AND RECEIVER OF MOBILE TELECOMMUNICATIONS

摘要

A method for transmitting and receiving control data of the PDCP(Packet Data Convergence Protocol) layer in the mobile communications systems and the transmitter and receiver in the mobile communications are provided to transmit the various control information with the control PDU(protocol data unit). The control protocol data unit including one or more first control information and one or more second control information produced in the PDCP layer is generated. The generated control PDU is transmitted. The first control information is the information about the PDCP status reports. The second information is the header compression feedback information. The generated control PDU comprises E (Extension) field. The E field indicates whether the next control information is or not.