Patent ID: 7792130

Claim:
A wireless device for communication with a network having a plurality of base stations, the wireless device comprising: a packet data convergence protocol (PDCP) buffer for storing one or more user packets, wherein each of the one or more user packets comprises a header; a packet data convergence protocol (PDCP) layer for converting the one or more user packets into one or more data units written to a radio link control (RLC) buffer of the wireless device, wherein the PDCP layer applies robust header compression (ROHC) to the header of each of the one or more user packets, and wherein control data units comprising information generated in the PDCP layer are written to the RLC buffer; and a transmitter for transmitting to a base station the one or more data units read from the RLC buffer and a buffer status report comprising information representing an amount of uncompressed data stored in the PDCP buffer that is to be transmitted from the wireless device.